下垂体干细胞:过去,现在和未来的前景.
María Inés Pérez Millán1, Leonard Y M Cheung2,3, Florencia Mercogliano1
1Institute of Bioscience, Biotechnology and Translational Biology (IB3-UBA), University of Buenos Aires, Buenos Aires, Argentina.
Nature reviews. Endocrinology
|December 15, 2023
概括
由SOX2识别的垂体干细胞,自我更新和分化. 它们的再生能力随着年龄的增长而下降,其潜在机制需要进一步研究以获得治疗进展.
科学领域:
- 内分泌学 在内分泌学.
- 干细胞生物学 干细胞生物学
- 发展生物学 发展生物学
背景情况:
- SOX2表达性垂体细胞作为干细胞起作用,能够自我更新和分化为有机体内的各种激素产生细胞类型.
- 由于受伤或压力而导致的垂体干细胞激活不完全,导致恢复减少,并随着年龄的增长而减少动员能力,其潜在原因尚未被阐明.
- 像WNT和Hippo这样的信号通路调节干细胞静止和激活,但它们在垂体中的复杂相互作用仍然不完全理解.
研究的目的:
- 为了提供一个概述在垂体干细胞生物学中的关键发现.
- 突出突出关键领域的未来研究在垂体干细胞功能和机体发生.
- 探索 pituitary organoids 在理解基因功能和治疗应用方面的潜力.
主要方法:
- 从人类或小鼠胚胎干细胞和人类诱导的多能干细胞中形成垂体器官.
- 在有机体模型中评估干细胞自我更新和分化能力.
- 评估人类垂体器官移植在hypophysectomized小鼠评估体内功能.
主要成果:
- 垂体干细胞具有自我更新和多能分化能力,形成功能性有机体.
- 人类垂体器官移植成功地恢复了小鼠模型中的皮质释放.
- 下垂体有机体作为一种有价值的ex vivo平台,用于研究基因功能和荷尔蒙调节.
结论:
- 垂体干细胞对于垂体发育和修复至关重要,其功能受到衰老的重大影响.
- 下垂体有机体是促进下垂体干细胞研究和探索治疗策略的有希望的工具.
- 对信号通路相互作用的进一步调查对于理解和潜在地增强垂体干细胞功能至关重要.
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