草菌 (Drosophila) AHR限制了肠道中的瘤生长和干细胞增殖
Minghua Tsai1, Jiawei Sun1, Cyrille Alexandre1
1The Francis Crick Institute, London, England, NW1 1AT, UK.
Wellcome open research
|April 11, 2025
概括
无脊柱,果中的烯碳化合物受体同类,调节成年肠干细胞的增殖和分化. 这项研究揭示了它在限制瘤生长和维持肠道平衡中的保留作用.
科学领域:
- 发展生物学 发展生物学
- 胃肠病学 胃肠病学
- 分子生物学分子生物学
背景情况:
- 基碳化合物受体 (AHR) 对于肠道平衡,瘤抑制和上皮分化至关重要.
- 成人肠道中的无脊柱体 (Drosophila AHR同类) 功能仍然未被探索,此前的研究仅集中在发育上.
研究的目的:
- 为了研究无脊椎在成年Drosophila中肠中肠中的作用.
- 为了确定无脊柱体在肠道对感染和瘤形成的反应中的参与.
主要方法:
- 在Drosophila中肠模型中过度表达和无脊椎细胞的失活.
- 使用感染 (Pseudomonas entomophila) 和瘤 (Notch RNAi,Yorkie) 的模型.
- 精选的中肠前代细胞的RNA测序.
主要成果:
- 在感染后,成年人中肠的无脊椎表达增加.
- 无脊椎无活化促进感染后的干细胞增殖;过度表达限制了增殖和生存.
- 无脊柱抑制瘤生长,并通过逆转致癌基因表达变化,延长瘤模型的寿命.
结论:
- 在成年Drosophila中肠中,无脊柱体起着新的作用.
- 在控制肠道上皮质的增殖和分化方面,AHR/无脊柱体表现出保留的功能.
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