期刊
BIOLOGY OF REPRODUCTION
卷 73, 期 6, 页码 1102-1108出版社
OXFORD UNIV PRESS INC
DOI: 10.1095/biolreprod.105.043091
关键词
BMP5; follicle-stimulating hormone; granulosa cells; ovary; progesterone; rat
Recently, the role of several elements of the bone morphogenetic protein (BMP) family has been studied in the ovary, some of them being crucial for ovarian function. In the present work, we have studied bone morphogenetic protein 5 (BMP5) expression and its biological role in the rat ovary. BMP5 is expressed by rat granulosa cells (GCs) and exerts specific biological effects on proliferation and steroidogenesis of these cells in an autocrine manner. These effects were shown to be associated with an increase in cyclin D2 protein level and a decrease in steroidogenic acute regulatory (StAR) protein expression in GCs in vitro. Ultimately, BMP5 actions were inhibited by follistatin. Overall, these data show that BMP5 is a novel element of the BMP family that might play a fully paracrine role in rodent ovarian folliculogenesis.
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