Expression of MSH5 in the primate ovary Through RT-PCR in various tissues of human fetuses, which were induced abortion at 21 weeks, we found MSH5 was highly expressed in fetal ovary and adrenal gland (Fig. 1D). We also found MSH5 was highly expressed in adult human granulosa cells (hGCs), including the hGCs obtained from one patient receiving in vitro fertilization treatment and COV434 (human ovarian granulosa tumor cell line) cells (Fig. 1E).