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Updated: Jun 15, 2025

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视觉化雄激素信号传递并评估其与前列腺发育,形态发生和再生中的正规Wnt信号通路的相互作用
Yao Mawulikplimi Adzavon1, Dong-Hoon Lee2, Alex Hiroto2
1Department of Cell Biology, Department of Oncology, and Montefiore Einstein Cancer Center, Albert Einstein College of Medicine, Bronx, New York, United States of America.
PLoS genetics
|June 13, 2025
概括
这项研究引入了一种新的遗传工具,用于跟踪前列腺发育期间的雄激素受体 (AR) 表达细胞. 这种方法揭示了AR表达原体和β-catenin在前列腺形态发生和细胞分化中的关键作用.
科学领域:
- 生殖生物学 生殖生物学
- 发展生物学 发展生物学
- 分子内分泌学分子内分泌学
背景情况:
- 雄激素受体 (AR) 对前列腺发育,生长和癌症至关重要.
- AR表达原生细胞的特定功能及其相互作用仍然不清楚.
- 了解AR信号对于前列腺健康和疾病至关重要.
研究的目的:
- 开发和利用一种新的遗传工具,用于空间时空标记和跟踪小鼠前列腺中的AR表达细胞.
- 为了研究AR表达原生细胞在前列腺发育,形态发生和再生中的作用.
- 阐明β-catenin在AR介导的前列腺发育中的功能.
主要方法:
- 鼠标的基因修改 Ar 基因位点,以启用CreER介导的标签.
- 使用双光记者小鼠模型进行细胞追踪.
- 在特定的胚胎阶段,使用塔莫西芬激活CreER并标记AR表达细胞.
- 在各种发育和产后时间点分析细胞分布和功能,包括在再生周期期间.
主要成果:
- 在胚胎日E18.5.5时,在泌尿器鼻膜介质 (UGM) 和上皮 (UGE) 均发现了表达AR的细胞.
- 这些标记的细胞及其后代在出生后的发育和再生周期中持续存在.
- 胚胎AR表达细胞中β-catenin的删除扰乱了前列腺发育,导致细胞极性丧失和Fas死亡信号的激活.
结论:
- 开发的遗传工具有效地可视化了前列腺发育和再生期间的AR表达细胞及其血统.
- 表达AR的原始细胞在前列腺形态发生和分化中发挥着关键作用.
- β-catenin对于保持前列腺腺细胞极性和生存至关重要,由AR信号传递介导.
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