| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T1 |
0-155 |
DRI_Background |
denotes |
Changes in matrix metalloprotease activity and progranulin levels may contribute to the pathophysiological function of mutant leucine-rich repeat kinase 2. |
| T2 |
156-316 |
DRI_Background |
denotes |
Increasing evidence suggests that Parkinson's disease (PD)-linked Leucine-rich repeat kinase 2 (LRRK2) has a role in peripheral and brain-resident immune cells. |
| T3 |
317-478 |
DRI_Background |
denotes |
Furthermore, dysregulation of the anti-inflammatory, neurotrophic protein progranulin (PGRN) has been demonstrated in several chronic neurodegenerative diseases. |
| T4 |
479-755 |
DRI_Outcome |
denotes |
Here we show that PGRN levels are significantly reduced in conditioned medium of LRRK2(R1441G) mutant mouse fibroblasts, leukocytes, and microglia, whereas levels of proinflammatory factors, like interleukin-1β and keratinocyte-derived chemokine, were significantly increased. |
| T5 |
756-856 |
DRI_Background |
denotes |
Decreased PGRN levels were also detected in supernatants of cultured human fibroblasts isolated from |
| T6 |
857-877 |
Token_Label.OUTSIDE |
denotes |
presymptomatic LRRK2 |
| T7 |
877-949 |
DRI_Background |
denotes |
(G2019S) mutation carriers, while mitochondrial function was unaffected. |
| T8 |
950-1080 |
DRI_Background |
denotes |
Furthermore, medium levels of matrix metalloprotease (MMP) 2 increased, whereas MMP 9 decreased in LRRK2(R1441G) mutant microglia. |
| T9 |
1081-1262 |
DRI_Outcome |
denotes |
Increased proteolytic cleavage of the MMP substrates ICAM-5 and α-synuclein in synaptoneurosomes from LRRK2(R1441G) mutant mouse brain indicates increased net synaptic MMP activity. |
| T10 |
1263-1319 |
DRI_Background |
denotes |
PGRN levels were decreased in the cerebrospinal fluid of |
| T11 |
1320-1340 |
Token_Label.OUTSIDE |
denotes |
presymptomatic LRRK2 |
| T12 |
1341-1421 |
DRI_Background |
denotes |
mutant mice, whereas PGRN levels were increased in aged symptomatic mutant mice. |
| T13 |
1422-1595 |
DRI_Background |
denotes |
Notably, PGRN levels were also increased in the cerebrospinal fluid of PD patients carrying LRRK2 mutations, but not in idiopathic PD patients and in healthy control donors. |
| T14 |
1596-1786 |
DRI_Outcome |
denotes |
Our data suggest that proinflammatory activity of peripheral and brain-resident immune cells may particularly contribute to the early stages of Parkinson's disease caused by LRRK2 mutations. |