PubMed:21515908 JSONTXT

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    Glycan-Motif

    {"project":"Glycan-Motif","denotations":[{"id":"T1","span":{"begin":67,"end":75},"obj":"https://glytoucan.org/Structures/Glycans/G00021MO"},{"id":"T2","span":{"begin":67,"end":75},"obj":"https://glytoucan.org/Structures/Glycans/G54161DR"},{"id":"T3","span":{"begin":164,"end":172},"obj":"https://glytoucan.org/Structures/Glycans/G00021MO"},{"id":"T4","span":{"begin":164,"end":172},"obj":"https://glytoucan.org/Structures/Glycans/G54161DR"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlyCosmos6-Glycan-Motif-Image

    {"project":"GlyCosmos6-Glycan-Motif-Image","denotations":[{"id":"T1","span":{"begin":67,"end":75},"obj":"Glycan_Motif"},{"id":"T3","span":{"begin":164,"end":172},"obj":"Glycan_Motif"}],"attributes":[{"id":"A1","pred":"image","subj":"T1","obj":"https://api.glycosmos.org/wurcs2image/0.10.0/png/binary/G54161DR"},{"id":"A2","pred":"image","subj":"T1","obj":"https://api.glycosmos.org/wurcs2image/0.10.0/png/binary/G00021MO"},{"id":"A3","pred":"image","subj":"T3","obj":"https://api.glycosmos.org/wurcs2image/0.10.0/png/binary/G54161DR"},{"id":"A4","pred":"image","subj":"T3","obj":"https://api.glycosmos.org/wurcs2image/0.10.0/png/binary/G00021MO"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    sentences

    {"project":"sentences","denotations":[{"id":"TextSentencer_T1","span":{"begin":0,"end":117},"obj":"Sentence"},{"id":"TextSentencer_T2","span":{"begin":118,"end":284},"obj":"Sentence"},{"id":"TextSentencer_T3","span":{"begin":285,"end":673},"obj":"Sentence"},{"id":"TextSentencer_T4","span":{"begin":674,"end":908},"obj":"Sentence"},{"id":"TextSentencer_T5","span":{"begin":909,"end":1154},"obj":"Sentence"},{"id":"TextSentencer_T6","span":{"begin":1155,"end":1327},"obj":"Sentence"},{"id":"TextSentencer_T7","span":{"begin":1328,"end":1549},"obj":"Sentence"},{"id":"T1","span":{"begin":0,"end":117},"obj":"Sentence"},{"id":"T2","span":{"begin":118,"end":284},"obj":"Sentence"},{"id":"T3","span":{"begin":285,"end":673},"obj":"Sentence"},{"id":"T4","span":{"begin":674,"end":908},"obj":"Sentence"},{"id":"T5","span":{"begin":909,"end":1154},"obj":"Sentence"},{"id":"T6","span":{"begin":1155,"end":1327},"obj":"Sentence"},{"id":"T7","span":{"begin":1328,"end":1549},"obj":"Sentence"},{"id":"T1","span":{"begin":0,"end":117},"obj":"Sentence"},{"id":"T2","span":{"begin":118,"end":284},"obj":"Sentence"},{"id":"T3","span":{"begin":285,"end":673},"obj":"Sentence"},{"id":"T4","span":{"begin":674,"end":908},"obj":"Sentence"},{"id":"T5","span":{"begin":909,"end":1154},"obj":"Sentence"},{"id":"T6","span":{"begin":1155,"end":1327},"obj":"Sentence"},{"id":"T7","span":{"begin":1328,"end":1549},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlyCosmos6-Glycan-Motif-Structure

    {"project":"GlyCosmos6-Glycan-Motif-Structure","denotations":[{"id":"T1","span":{"begin":67,"end":75},"obj":"https://glytoucan.org/Structures/Glycans/G00021MO"},{"id":"T2","span":{"begin":67,"end":75},"obj":"https://glytoucan.org/Structures/Glycans/G54161DR"},{"id":"T3","span":{"begin":164,"end":172},"obj":"https://glytoucan.org/Structures/Glycans/G00021MO"},{"id":"T4","span":{"begin":164,"end":172},"obj":"https://glytoucan.org/Structures/Glycans/G54161DR"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    Glycosmos6-GlycoEpitope

    {"project":"Glycosmos6-GlycoEpitope","denotations":[{"id":"T1","span":{"begin":1475,"end":1490},"obj":"http://www.glycoepitope.jp/epitopes/EP0086"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    PubmedHPO

    {"project":"PubmedHPO","denotations":[{"id":"T1","span":{"begin":607,"end":612},"obj":"HP_0002664"},{"id":"T2","span":{"begin":634,"end":642},"obj":"HP_0002861"},{"id":"T3","span":{"begin":1134,"end":1142},"obj":"HP_0002861"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlycoBiology-FMA

    {"project":"GlycoBiology-FMA","denotations":[{"id":"_T1","span":{"begin":67,"end":75},"obj":"FMAID:167420"},{"id":"_T2","span":{"begin":67,"end":75},"obj":"FMAID:82839"},{"id":"_T3","span":{"begin":164,"end":172},"obj":"FMAID:167420"},{"id":"_T4","span":{"begin":164,"end":172},"obj":"FMAID:82839"},{"id":"_T5","span":{"begin":289,"end":298},"obj":"FMAID:67745"},{"id":"_T6","span":{"begin":289,"end":298},"obj":"FMAID:165656"},{"id":"_T7","span":{"begin":408,"end":418},"obj":"FMAID:63877"},{"id":"_T8","span":{"begin":408,"end":418},"obj":"FMAID:162340"},{"id":"_T9","span":{"begin":445,"end":456},"obj":"FMAID:162384"},{"id":"_T10","span":{"begin":445,"end":456},"obj":"FMAID:63916"},{"id":"_T11","span":{"begin":475,"end":487},"obj":"FMAID:83624"},{"id":"_T12","span":{"begin":475,"end":487},"obj":"FMAID:197708"},{"id":"_T13","span":{"begin":522,"end":532},"obj":"FMAID:167268"},{"id":"_T14","span":{"begin":522,"end":532},"obj":"FMAID:62933"},{"id":"_T15","span":{"begin":522,"end":532},"obj":"FMAID:167267"},{"id":"_T16","span":{"begin":522,"end":532},"obj":"FMAID:62932"},{"id":"_T17","span":{"begin":522,"end":532},"obj":"FMAID:62931"},{"id":"_T18","span":{"begin":522,"end":532},"obj":"FMAID:167265"},{"id":"_T19","span":{"begin":524,"end":532},"obj":"FMAID:61795"},{"id":"_T20","span":{"begin":524,"end":532},"obj":"FMAID:165243"},{"id":"_T21","span":{"begin":533,"end":543},"obj":"FMAID:62932"},{"id":"_T22","span":{"begin":533,"end":543},"obj":"FMAID:62933"},{"id":"_T23","span":{"begin":533,"end":543},"obj":"FMAID:167267"},{"id":"_T24","span":{"begin":533,"end":543},"obj":"FMAID:62931"},{"id":"_T25","span":{"begin":533,"end":543},"obj":"FMAID:167265"},{"id":"_T26","span":{"begin":533,"end":543},"obj":"FMAID:167268"},{"id":"_T27","span":{"begin":535,"end":543},"obj":"FMAID:165243"},{"id":"_T28","span":{"begin":535,"end":543},"obj":"FMAID:61795"},{"id":"_T29","span":{"begin":544,"end":556},"obj":"FMAID:167256"},{"id":"_T30","span":{"begin":544,"end":556},"obj":"FMAID:62925"},{"id":"_T31","span":{"begin":798,"end":812},"obj":"FMAID:82746"},{"id":"_T32","span":{"begin":798,"end":812},"obj":"FMAID:196735"},{"id":"_T33","span":{"begin":798,"end":812},"obj":"FMAID:196779"},{"id":"_T34","span":{"begin":798,"end":812},"obj":"FMAID:82785"},{"id":"_T35","span":{"begin":1064,"end":1072},"obj":"FMAID:165447"},{"id":"_T36","span":{"begin":1064,"end":1072},"obj":"FMAID:67257"},{"id":"_T37","span":{"begin":1107,"end":1117},"obj":"FMAID:167265"},{"id":"_T38","span":{"begin":1107,"end":1117},"obj":"FMAID:62931"},{"id":"_T39","span":{"begin":1107,"end":1117},"obj":"FMAID:62933"},{"id":"_T40","span":{"begin":1107,"end":1117},"obj":"FMAID:167268"},{"id":"_T41","span":{"begin":1107,"end":1117},"obj":"FMAID:62932"},{"id":"_T42","span":{"begin":1107,"end":1117},"obj":"FMAID:167267"},{"id":"_T43","span":{"begin":1109,"end":1117},"obj":"FMAID:165243"},{"id":"_T44","span":{"begin":1109,"end":1117},"obj":"FMAID:61795"},{"id":"_T45","span":{"begin":1287,"end":1296},"obj":"FMAID:165656"},{"id":"_T46","span":{"begin":1287,"end":1296},"obj":"FMAID:67745"},{"id":"_T47","span":{"begin":1297,"end":1303},"obj":"FMAID:178661"},{"id":"_T48","span":{"begin":1475,"end":1482},"obj":"FMAID:67110"},{"id":"_T49","span":{"begin":1475,"end":1482},"obj":"FMAID:165191"},{"id":"_T50","span":{"begin":1475,"end":1490},"obj":"FMAID:167405"},{"id":"_T51","span":{"begin":1475,"end":1490},"obj":"FMAID:63023"},{"id":"_T52","span":{"begin":1475,"end":1503},"obj":"FMAID:82834"},{"id":"_T53","span":{"begin":1475,"end":1503},"obj":"FMAID:196834"},{"id":"_T54","span":{"begin":1491,"end":1503},"obj":"FMAID:63015"},{"id":"_T55","span":{"begin":1491,"end":1503},"obj":"FMAID:167397"}],"namespaces":[{"prefix":"FMAID","uri":"http://purl.org/sig/ont/fma/fma"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    uniprot-human

    {"project":"uniprot-human","denotations":[{"id":"T1","span":{"begin":392,"end":418},"obj":"http://www.uniprot.org/uniprot/P05230"},{"id":"T2","span":{"begin":392,"end":418},"obj":"http://www.uniprot.org/uniprot/P61328"},{"id":"T3","span":{"begin":392,"end":418},"obj":"http://www.uniprot.org/uniprot/Q92913"},{"id":"T4","span":{"begin":392,"end":418},"obj":"http://www.uniprot.org/uniprot/Q9NSA1"},{"id":"T5","span":{"begin":392,"end":418},"obj":"http://www.uniprot.org/uniprot/Q92915"},{"id":"T6","span":{"begin":392,"end":418},"obj":"http://www.uniprot.org/uniprot/O60258"},{"id":"T7","span":{"begin":392,"end":418},"obj":"http://www.uniprot.org/uniprot/O76093"},{"id":"T8","span":{"begin":392,"end":418},"obj":"http://www.uniprot.org/uniprot/P08620"},{"id":"T9","span":{"begin":392,"end":418},"obj":"http://www.uniprot.org/uniprot/Q9UC54"},{"id":"T10","span":{"begin":419,"end":434},"obj":"http://www.uniprot.org/uniprot/Q9UC54"},{"id":"T11","span":{"begin":419,"end":434},"obj":"http://www.uniprot.org/uniprot/P20783"},{"id":"T12","span":{"begin":419,"end":434},"obj":"http://www.uniprot.org/uniprot/Q9UK05"},{"id":"T13","span":{"begin":419,"end":434},"obj":"http://www.uniprot.org/uniprot/O15520"},{"id":"T14","span":{"begin":433,"end":456},"obj":"http://www.uniprot.org/uniprot/Q9NPG4"},{"id":"T15","span":{"begin":433,"end":456},"obj":"http://www.uniprot.org/uniprot/Q99944"},{"id":"T16","span":{"begin":522,"end":532},"obj":"http://www.uniprot.org/uniprot/P16109"},{"id":"T17","span":{"begin":533,"end":543},"obj":"http://www.uniprot.org/uniprot/P16109"},{"id":"T18","span":{"begin":1107,"end":1117},"obj":"http://www.uniprot.org/uniprot/P16109"},{"id":"T19","span":{"begin":761,"end":763},"obj":"http://www.uniprot.org/uniprot/Q9BVP2"},{"id":"T20","span":{"begin":1475,"end":1503},"obj":"http://www.uniprot.org/uniprot/Q9UCB0"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    uniprot-mouse

    {"project":"uniprot-mouse","denotations":[{"id":"T1","span":{"begin":522,"end":532},"obj":"http://www.uniprot.org/uniprot/Q01102"},{"id":"T2","span":{"begin":533,"end":543},"obj":"http://www.uniprot.org/uniprot/Q01102"},{"id":"T3","span":{"begin":1107,"end":1117},"obj":"http://www.uniprot.org/uniprot/Q01102"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlycoBiology-NCBITAXON

    {"project":"GlycoBiology-NCBITAXON","denotations":[{"id":"T1","span":{"begin":634,"end":642},"obj":"http://purl.bioontology.org/ontology/NCBITAXON/1369386"},{"id":"T2","span":{"begin":634,"end":642},"obj":"http://purl.bioontology.org/ontology/NCBITAXON/45308"},{"id":"T3","span":{"begin":1134,"end":1142},"obj":"http://purl.bioontology.org/ontology/NCBITAXON/1369386"},{"id":"T4","span":{"begin":1134,"end":1142},"obj":"http://purl.bioontology.org/ontology/NCBITAXON/45308"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GO-BP

    {"project":"GO-BP","denotations":[{"id":"T1","span":{"begin":322,"end":331},"obj":"http://purl.obolibrary.org/obo/GO_0050817"},{"id":"T2","span":{"begin":322,"end":340},"obj":"http://purl.obolibrary.org/obo/GO_0050820"},{"id":"T3","span":{"begin":392,"end":398},"obj":"http://purl.obolibrary.org/obo/GO_0040007"},{"id":"T4","span":{"begin":419,"end":425},"obj":"http://purl.obolibrary.org/obo/GO_0040007"},{"id":"T5","span":{"begin":457,"end":463},"obj":"http://purl.obolibrary.org/obo/GO_0040007"},{"id":"T6","span":{"begin":392,"end":418},"obj":"http://purl.obolibrary.org/obo/GO_0071774"},{"id":"T7","span":{"begin":949,"end":957},"obj":"http://purl.obolibrary.org/obo/GO_0051923"},{"id":"T8","span":{"begin":975,"end":983},"obj":"http://purl.obolibrary.org/obo/GO_0051923"},{"id":"T9","span":{"begin":1483,"end":1490},"obj":"http://purl.obolibrary.org/obo/GO_0051923"},{"id":"T10","span":{"begin":1208,"end":1219},"obj":"http://purl.obolibrary.org/obo/GO_0031099"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GO-MF

    {"project":"GO-MF","denotations":[{"id":"T1","span":{"begin":399,"end":425},"obj":"http://purl.obolibrary.org/obo/GO_0005104"},{"id":"T2","span":{"begin":399,"end":425},"obj":"http://purl.obolibrary.org/obo/GO_0017134"},{"id":"T3","span":{"begin":524,"end":532},"obj":"http://purl.obolibrary.org/obo/GO_0030246"},{"id":"T4","span":{"begin":535,"end":543},"obj":"http://purl.obolibrary.org/obo/GO_0030246"},{"id":"T5","span":{"begin":1109,"end":1117},"obj":"http://purl.obolibrary.org/obo/GO_0030246"},{"id":"T6","span":{"begin":557,"end":563},"obj":"http://purl.obolibrary.org/obo/GO_0005488"},{"id":"T7","span":{"begin":1007,"end":1014},"obj":"http://purl.obolibrary.org/obo/GO_0070026"},{"id":"T8","span":{"begin":1007,"end":1014},"obj":"http://purl.obolibrary.org/obo/GO_0003680"},{"id":"T9","span":{"begin":1007,"end":1014},"obj":"http://purl.obolibrary.org/obo/GO_0017091"},{"id":"T10","span":{"begin":1007,"end":1014},"obj":"http://purl.obolibrary.org/obo/GO_0005488"},{"id":"T11","span":{"begin":1475,"end":1503},"obj":"http://purl.obolibrary.org/obo/GO_0043395"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GO-CC

    {"project":"GO-CC","denotations":[{"id":"T1","span":{"begin":483,"end":487},"obj":"http://purl.obolibrary.org/obo/GO_0005623"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlyTouCan-IUPAC

    {"project":"GlyTouCan-IUPAC","denotations":[{"id":"GlycanIUPAC_T1","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G41652MJ\""},{"id":"GlycanIUPAC_T2","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G20761YC\""},{"id":"GlycanIUPAC_T3","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G19807HM\""},{"id":"GlycanIUPAC_T4","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G20351TE\""},{"id":"GlycanIUPAC_T5","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G71957MR\""},{"id":"GlycanIUPAC_T6","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G59040AE\""},{"id":"GlycanIUPAC_T7","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G14987PW\""},{"id":"GlycanIUPAC_T8","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G95064PC\""},{"id":"GlycanIUPAC_T9","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G39143AQ\""},{"id":"GlycanIUPAC_T10","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G65149OO\""},{"id":"GlycanIUPAC_T11","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G02766SY\""},{"id":"GlycanIUPAC_T12","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G26019KJ\""},{"id":"GlycanIUPAC_T13","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G36429CZ\""},{"id":"GlycanIUPAC_T14","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G89633TP\""},{"id":"GlycanIUPAC_T15","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G28494FO\""},{"id":"GlycanIUPAC_T16","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G06219CP\""},{"id":"GlycanIUPAC_T17","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G44237SM\""},{"id":"GlycanIUPAC_T18","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G57948RL\""},{"id":"GlycanIUPAC_T19","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G64016DN\""},{"id":"GlycanIUPAC_T20","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G14536PC\""},{"id":"GlycanIUPAC_T21","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G14356FW\""},{"id":"GlycanIUPAC_T22","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G34565UO\""},{"id":"GlycanIUPAC_T23","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G67124MW\""},{"id":"GlycanIUPAC_T24","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G71457ZU\""},{"id":"GlycanIUPAC_T25","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G55228VZ\""},{"id":"GlycanIUPAC_T26","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G31034MJ\""},{"id":"GlycanIUPAC_T27","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G25776IP\""},{"id":"GlycanIUPAC_T28","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G64442BV\""},{"id":"GlycanIUPAC_T29","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G57018LE\""},{"id":"GlycanIUPAC_T30","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G61761GX\""},{"id":"GlycanIUPAC_T31","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G76318UX\""},{"id":"GlycanIUPAC_T32","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G61906ER\""},{"id":"GlycanIUPAC_T33","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G68723GR\""},{"id":"GlycanIUPAC_T34","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G19540LE\""},{"id":"GlycanIUPAC_T35","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G74944PO\""},{"id":"GlycanIUPAC_T36","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G89489ZJ\""},{"id":"GlycanIUPAC_T37","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G04434YU\""},{"id":"GlycanIUPAC_T38","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G21450PB\""},{"id":"GlycanIUPAC_T39","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G93629QY\""},{"id":"GlycanIUPAC_T40","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G02603TR\""},{"id":"GlycanIUPAC_T41","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G40280JP\""},{"id":"GlycanIUPAC_T42","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G95259IC\""},{"id":"GlycanIUPAC_T43","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G26900FE\""},{"id":"GlycanIUPAC_T44","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G21346KK\""},{"id":"GlycanIUPAC_T45","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G62509FF\""},{"id":"GlycanIUPAC_T46","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G83932AK\""},{"id":"GlycanIUPAC_T47","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G96978IB\""},{"id":"GlycanIUPAC_T48","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G34275DN\""},{"id":"GlycanIUPAC_T49","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G07071JF\""},{"id":"GlycanIUPAC_T50","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G80639QD\""},{"id":"GlycanIUPAC_T51","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G99460PJ\""},{"id":"GlycanIUPAC_T52","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G22024BZ\""},{"id":"GlycanIUPAC_T53","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G74097ZY\""},{"id":"GlycanIUPAC_T54","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G84439YP\""},{"id":"GlycanIUPAC_T55","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G52207WQ\""},{"id":"GlycanIUPAC_T56","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G90695MS\""},{"id":"GlycanIUPAC_T57","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G50398QX\""},{"id":"GlycanIUPAC_T58","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G12166ZT\""},{"id":"GlycanIUPAC_T59","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G48368BR\""},{"id":"GlycanIUPAC_T60","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G57407RW\""},{"id":"GlycanIUPAC_T61","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G00386TY\""},{"id":"GlycanIUPAC_T62","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G18723JK\""},{"id":"GlycanIUPAC_T63","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G93757OR\""},{"id":"GlycanIUPAC_T64","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G29006SI\""},{"id":"GlycanIUPAC_T65","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G03099OQ\""},{"id":"GlycanIUPAC_T66","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G53739OW\""},{"id":"GlycanIUPAC_T67","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G70440ZO\""},{"id":"GlycanIUPAC_T68","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G29951RR\""},{"id":"GlycanIUPAC_T69","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G58402TI\""},{"id":"GlycanIUPAC_T70","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G39875TP\""},{"id":"GlycanIUPAC_T71","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G83439QV\""},{"id":"GlycanIUPAC_T72","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G41762RC\""},{"id":"GlycanIUPAC_T73","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G91604UI\""},{"id":"GlycanIUPAC_T74","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G88447WE\""},{"id":"GlycanIUPAC_T75","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G93634BS\""},{"id":"GlycanIUPAC_T76","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G02587BH\""},{"id":"GlycanIUPAC_T77","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G43511MX\""},{"id":"GlycanIUPAC_T78","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G64958DH\""},{"id":"GlycanIUPAC_T79","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G30384TR\""},{"id":"GlycanIUPAC_T80","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G15624EX\""},{"id":"GlycanIUPAC_T81","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G22706ST\""},{"id":"GlycanIUPAC_T82","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G57408PI\""},{"id":"GlycanIUPAC_T83","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G86403XX\""},{"id":"GlycanIUPAC_T84","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G78043YB\""},{"id":"GlycanIUPAC_T85","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G18952JK\""},{"id":"GlycanIUPAC_T86","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G49020ND\""},{"id":"GlycanIUPAC_T87","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G63590YW\""},{"id":"GlycanIUPAC_T88","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G22793KS\""},{"id":"GlycanIUPAC_T89","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G64134SS\""},{"id":"GlycanIUPAC_T90","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G17338HY\""},{"id":"GlycanIUPAC_T91","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G99745XF\""},{"id":"GlycanIUPAC_T92","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G27782HN\""},{"id":"GlycanIUPAC_T93","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G57496DC\""},{"id":"GlycanIUPAC_T94","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G93169WB\""},{"id":"GlycanIUPAC_T95","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G05518TD\""},{"id":"GlycanIUPAC_T96","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G62603DN\""},{"id":"GlycanIUPAC_T97","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G59574FS\""},{"id":"GlycanIUPAC_T98","span":{"begin":1279,"end":1282},"obj":"\"http://rdf.glycoinfo.org/glycan/G47567WC\""}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlycoBiology-Motifs

    {"project":"GlycoBiology-Motifs","denotations":[{"id":"T1","span":{"begin":67,"end":75},"obj":"http://rdf.glycoinfo.org/glycan/G54161DR"},{"id":"T2","span":{"begin":164,"end":172},"obj":"http://rdf.glycoinfo.org/glycan/G54161DR"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    Lectin

    {"project":"Lectin","denotations":[{"id":"Lectin_T1","span":{"begin":524,"end":532},"obj":"https://acgg.asia/db/lfdb/LfDB0142"},{"id":"Lectin_T2","span":{"begin":535,"end":543},"obj":"https://acgg.asia/db/lfdb/LfDB0142"},{"id":"Lectin_T3","span":{"begin":1109,"end":1117},"obj":"https://acgg.asia/db/lfdb/LfDB0142"},{"id":"Lectin_T4","span":{"begin":522,"end":532},"obj":"https://acgg.asia/db/lfdb/LfDB0013"},{"id":"Lectin_T5","span":{"begin":533,"end":543},"obj":"https://acgg.asia/db/lfdb/LfDB0013"},{"id":"Lectin_T6","span":{"begin":1107,"end":1117},"obj":"https://acgg.asia/db/lfdb/LfDB0013"},{"id":"Lectin_T7","span":{"begin":524,"end":532},"obj":"https://acgg.asia/db/lfdb/LfDB0043"},{"id":"Lectin_T8","span":{"begin":535,"end":543},"obj":"https://acgg.asia/db/lfdb/LfDB0043"},{"id":"Lectin_T9","span":{"begin":1109,"end":1117},"obj":"https://acgg.asia/db/lfdb/LfDB0043"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlycoBiology-Epitope

    {"project":"GlycoBiology-Epitope","denotations":[{"id":"PD-GlycoEpitope-B_T1","span":{"begin":1475,"end":1490},"obj":"http://www.glycoepitope.jp/epitopes/EP0086"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    mondo_disease

    {"project":"mondo_disease","denotations":[{"id":"T1","span":{"begin":607,"end":612},"obj":"Disease"},{"id":"T2","span":{"begin":634,"end":642},"obj":"Disease"},{"id":"T3","span":{"begin":1134,"end":1142},"obj":"Disease"}],"attributes":[{"id":"A1","pred":"mondo_id","subj":"T1","obj":"http://purl.obolibrary.org/obo/MONDO_0005070"},{"id":"A2","pred":"mondo_id","subj":"T2","obj":"http://purl.obolibrary.org/obo/MONDO_0005105"},{"id":"A3","pred":"mondo_id","subj":"T3","obj":"http://purl.obolibrary.org/obo/MONDO_0005105"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    HP-phenotype

    {"project":"HP-phenotype","denotations":[{"id":"T1","span":{"begin":607,"end":612},"obj":"Phenotype"},{"id":"T2","span":{"begin":634,"end":642},"obj":"Phenotype"},{"id":"T3","span":{"begin":1134,"end":1142},"obj":"Phenotype"}],"attributes":[{"id":"A1","pred":"hp_id","subj":"T1","obj":"HP:0002664"},{"id":"A2","pred":"hp_id","subj":"T2","obj":"HP:0002861"},{"id":"A3","pred":"hp_id","subj":"T3","obj":"HP:0002861"}],"namespaces":[{"prefix":"HP","uri":"http://purl.obolibrary.org/obo/HP_"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlyCosmos15-HP

    {"project":"GlyCosmos15-HP","denotations":[{"id":"T1","span":{"begin":607,"end":612},"obj":"Phenotype"},{"id":"T2","span":{"begin":634,"end":642},"obj":"Phenotype"},{"id":"T3","span":{"begin":1134,"end":1142},"obj":"Phenotype"}],"attributes":[{"id":"A1","pred":"hp_id","subj":"T1","obj":"HP:0002664"},{"id":"A2","pred":"hp_id","subj":"T2","obj":"HP:0002861"},{"id":"A3","pred":"hp_id","subj":"T3","obj":"HP:0002861"}],"namespaces":[{"prefix":"HP","uri":"http://purl.obolibrary.org/obo/HP_"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlyCosmos15-Sentences

    {"project":"GlyCosmos15-Sentences","blocks":[{"id":"T1","span":{"begin":0,"end":117},"obj":"Sentence"},{"id":"T2","span":{"begin":118,"end":284},"obj":"Sentence"},{"id":"T3","span":{"begin":285,"end":673},"obj":"Sentence"},{"id":"T4","span":{"begin":674,"end":908},"obj":"Sentence"},{"id":"T5","span":{"begin":909,"end":1154},"obj":"Sentence"},{"id":"T6","span":{"begin":1155,"end":1327},"obj":"Sentence"},{"id":"T7","span":{"begin":1328,"end":1549},"obj":"Sentence"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlyCosmos15-MONDO

    {"project":"GlyCosmos15-MONDO","denotations":[{"id":"T1","span":{"begin":607,"end":612},"obj":"Disease"},{"id":"T2","span":{"begin":634,"end":642},"obj":"Disease"},{"id":"T3","span":{"begin":1134,"end":1142},"obj":"Disease"}],"attributes":[{"id":"A1","pred":"mondo_id","subj":"T1","obj":"MONDO:0005070"},{"id":"A2","pred":"mondo_id","subj":"T2","obj":"MONDO:0005105"},{"id":"A3","pred":"mondo_id","subj":"T3","obj":"MONDO:0005105"}],"namespaces":[{"prefix":"MONDO","uri":"http://purl.obolibrary.org/obo/MONDO_"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlyCosmos15-GlycoEpitope

    {"project":"GlyCosmos15-GlycoEpitope","denotations":[{"id":"T1","span":{"begin":1475,"end":1490},"obj":"http://purl.jp/bio/12/glyco/glycan#Glycan_epitope"}],"attributes":[{"id":"A1","pred":"glycoepitope_id","subj":"T1","obj":"http://www.glycoepitope.jp/epitopes/EP0086"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlyCosmos15-UBERON

    {"project":"GlyCosmos15-UBERON","denotations":[{"id":"T1","span":{"begin":408,"end":418},"obj":"Body_part"},{"id":"T2","span":{"begin":475,"end":487},"obj":"Body_part"}],"attributes":[{"id":"A1","pred":"uberon_id","subj":"T1","obj":"http://purl.obolibrary.org/obo/CL_0000057"},{"id":"A2","pred":"uberon_id","subj":"T2","obj":"http://purl.obolibrary.org/obo/CL_0000499"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    GlyCosmos15-FMA

    {"project":"GlyCosmos15-FMA","denotations":[{"id":"T1","span":{"begin":408,"end":418},"obj":"Body_part"}],"attributes":[{"id":"A1","pred":"db_id","subj":"T1","obj":"FMA:63877"}],"namespaces":[{"prefix":"FMA","uri":"http://purl.org/sig/ont/fma/fma"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    Anatomy-UBERON

    {"project":"Anatomy-UBERON","denotations":[{"id":"T1","span":{"begin":408,"end":418},"obj":"Body_part"},{"id":"T2","span":{"begin":475,"end":487},"obj":"Body_part"}],"attributes":[{"id":"A1","pred":"uberon_id","subj":"T1","obj":"http://purl.obolibrary.org/obo/CL_0000057"},{"id":"A2","pred":"uberon_id","subj":"T2","obj":"http://purl.obolibrary.org/obo/CL_0000499"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}

    CL-cell

    {"project":"CL-cell","denotations":[{"id":"T1","span":{"begin":408,"end":418},"obj":"Cell"},{"id":"T2","span":{"begin":475,"end":487},"obj":"Cell"}],"attributes":[{"id":"A1","pred":"cl_id","subj":"T1","obj":"http://purl.obolibrary.org/obo/CL:0000057"},{"id":"A2","pred":"cl_id","subj":"T2","obj":"http://purl.obolibrary.org/obo/CL:0000499"}],"text":"Bioactivity screening of partially desulfated low-molecular-weight heparins: a structure/activity relationship study.\nA series of size-defined low-molecular-weight heparins were generated by regioselective chemical modifications and profiled for their in vitro and in vivo activities. The compounds displayed reduced anti-coagulant activity, demonstrated varying affinities toward angiogenic growth factors (fibroblast growth factor-2, vascular endothelial growth factor and stromal cell-derived factor-1α), inhibited the P-selectin/P-selectin glycoprotein ligand-1 interaction and, notably, exhibited anti-tumor efficacy in a murine melanoma experimental metastasis model. Our results demonstrate that modulating specific sequences, especially the N-domains (-NS or -NH(2) or -NHCOCH(3)) in these polysaccharide sequences, has a major impact on the participation in a diverse range of biological activities. These results also suggest that the 6-O-sulfates, but not the 2-O-sulfates, critically affect the binding of a desulfated derivative to certain angiogenic proteins as well as its ability to inhibit P-selectin-mediated B16F10 melanoma metastases. Furthermore, N-desulfation followed by N-acetylation regenerates the affinity/inhibition properties to different extents in all the compounds tested in the in vitro assays. This systematic study lays a conceptual foundation for detailed structure function elucidation and will facilitate the rational design of targeted heparan sulfate proteoglycan-based anti-metastatic therapeutic candidates."}