MAPキナーゼおよびプロテインチロシンホスファターゼの顆粒膜細胞における役割

DOI 日本農学文献記事索引 Web Site Web Site PubMed 参考文献100件

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  • Cellular Functions of Mitogen-activated Protein Kinases and Protein Tyrosine Phosphatases in Ovarian Granulosa Cells
  • JSAR Outstanding Presentation Award: Cellular Functions of Mitogen-activated Protein Kinases and Protein Tyrosine Phosphatases in Ovarian Granulosa Cells

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A number of endocrine and paracrine factors regulate the follicular growth and atresia, which are closely associated with granulosa cell survival and apoptosis. However, the molecular mechanisms underlying the intracellular events induced by these factors are poorly understood. Here, we describe the correlation of mitogen-activated protein kinase (MAPK) activities with granulosa cell survival and apoptosis, and the cellular functions of protein tyrosine phosphatases (PTPs) in these cells based on our recent data. MAPKs play key roles in various cellular responses because numerous extracellular stimuli are integrated into MAPKs. The protein phospho-Tyr level regulated by protein tyrosine kinases (PTKs) and PTPs is a major control mechanism for processes as diverse as cell survival, proliferation, differentiation, and metabolism. Although PTKs are critically involved in granulosa cell survival and proliferation, there are no reports indicating the roles of PTPs in the ovary except for ours. Information about MAPKs and PTPs in these cells will provide a basis for the understanding of the molecular mechanisms controlling the fate of follicles.<br>

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