ZGLP1是小鼠卵源命運的決定因素
作者:
小柯機器人發布時間:2020/2/17 10:46:12
近日,日本京都大學Mitinori Saitou及其課題組發現,ZGLP1是小鼠卵源命運的決定因素。相關論文2020年2月12日在線發表在《科學》上。
研究人員發現ZGLP1,一個具有GATA樣鋅指的保守轉錄調節因子,決定了小鼠的卵源命運。ZGLP1在骨形態發生蛋白(BMP)的下遊起作用,但在視黃酸(RA)卻不起作用,並且對於卵子程序和減數分裂至關重要。ZGLP1過表達通過激活由Polycomb活性抑制的卵母細胞程序來誘導體外原始生殖細胞樣細胞(PGCLC)分化為胎兒卵母細胞,而RA信號有助於卵母細胞程序成熟和PGC程序抑制。這些發現闡明了哺乳動物卵原命運的決定機制,並為促進體外配子發生和生殖醫學提供了基礎。
據悉,哺乳動物的有性生殖依賴於雄性和雌性生殖細胞發育的分開。但是,其潛在機制仍不清楚。
附:英文原文
Title: ZGLP1 is a determinant for the oogenic fate in mice
Author: So I. Nagaoka, Fumio Nakaki, Hidetaka Miyauchi, Yoshiaki Nosaka, Hiroshi Ohta, Yukihiro Yabuta, Kazuki Kurimoto, Katsuhiko Hayashi, Tomonori Nakamura, Takuya Yamamoto, Mitinori Saitou
Issue&Volume: 2020/02/13
Abstract: AbstractMammalian sexual reproduction relies on the dichotomy of male and female germ cell development. However, the underlying mechanisms remain unclear. Here, we show that ZGLP1, a conserved transcriptional regulator with GATA-like zinc fingers, determines the oogenic fate in mice. ZGLP1 acts downstream of bone morphogenetic protein (BMP), but not retinoic acid (RA), and is essential for the oogenic program and meiotic entry. ZGLP1 overexpression induces differentiation of in vitro primordial germ cell-like cells (PGCLCs) into fetal oocytes by activating the oogenic programs repressed by Polycomb activities, whereas RA signaling contributes to the oogenic program maturation and PGC program repression. Our findings elucidate the mechanism for mammalian oogenic fate determination, providing a foundation for promoting in vitro gametogenesis and reproductive medicine.
DOI: 10.1126/science.aaw4115
Source: https://science.sciencemag.org/content/early/2020/02/12/science.aaw4115
Science:《科學》,創刊於1880年。隸屬於美國科學促進會,最新IF:41.037