期刊
MOLECULAR AND CELLULAR ENDOCRINOLOGY
卷 323, 期 2, 页码 277-281出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.mce.2010.03.008
关键词
Prolactin; Cathepsin; MMP; Placenta; Endothelial cell; Bovine
资金
- Ministry of Agriculture. Forestry and Fisheries of Japan [05-1770]
- Ministry of Education, Culture, Sport, Science and Technology of Japan [Houga-kenkyu 19658101, Wakate-kenkyu B 19780212, Kiban-kenkyu B 20380159]
- National Institute of Agrobiological Sciences [05-201]
Prolactin-related protein-I (PRP1) is a member of a non-classical prolactin (PRL)/growth hormone family in cattle. However, its function is still unknown. PRL, when cleaved by cathepsin D and matrix metalloproteinases (MMPs), resulted in cleaved N-terminal 16 kDa fragments (16K-PRL) that have antiangiogenetic properties in human and rodents. We examined the possibility of similar activity of bovine PRP1. PRP1 (normally 33 kDa) was cleaved by cathepsins (CTSs). MMPs, and bovine cotyledonary-conditioned medium (BCCM), and generated mainly 26 kDa N-terminal fragments. Two specific enzyme families, CTSs and MMPs cleaved intact PRP1, and BCCM also contained PRP1 cleavage activity. Bioactivity for pro- or anti-angiogenesis of the cleaved PRP1 was examined in a cell proliferation assay using bovine brain vascular endothelial cells. The cleaved PRP1 proliferated the endothelial cells in vitro. The endothelial cell proliferation activity of cleaved PRP1 may be shared in specific bovine placentomal angiogenesis. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
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