BmPriS通过调节丝虫内核复制来促进丝腺生长
Yong Liu1, Zhengyi Li1, Lili Zhou1
1Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, Biological Science Research Center, Southwest University, Chongqing 400715, China.
International journal of biological macromolecules
|July 1, 2025
概括
主酶α子单元 (PriS) 对于丝虫的丝腺内核复制至关重要. 破坏BmPriS通过影响细胞生长,DNA复制和亡,损害丝生产,突显其在丝腺发育中的作用.
科学领域:
- 细胞生物学 细胞生物学
- 发展生物学 发展生物学
- 遗传学 是一个遗传学.
背景情况:
- 细胞循环变异的内核复制发生在丝虫的丝腺中.
- 酶α子单元 (PriS) 在这个过程中的作用尚不清楚.
研究的目的:
- 为了研究BmPriS在丝虫后部丝腺 (PSG) 细胞内核复制中的功能.
- 阐明BmPriS影响丝生产和腺体发育的分子机制.
主要方法:
- 在CRISPR/Cas9基因编辑中突变了PSG中的BmPriS.
- 对子外重量,丝纤维厚度和PSG形态学的分析.
- 免疫光染色用于细胞大小的评估.
- 对纤维素,血清素,内核复制,细胞循环和亡相关基因的基因表达分析.
- 用EDU染色来评估DNA复制.
主要成果:
- BmPriS的突变导致子重量减少和丝纤维更薄.
- 在突变的丝虫中观察到没有PSG和显著较小的丝腺细胞.
- 丝蛋白基因 (纤维蛋白和素) 的表达发生了变化.
- 内核复制,细胞循环进展和生长受损,而PSG细胞的亡增加.
- 观察到MCM,CDK2,CyclinE和Yki基因的下调,以及Fadd,Daxx和Dredd基因的上调.
结论:
- 通过调节PSG内复制,BmPriS对于调节丝腺生长和丝生产至关重要.
- BmPriS影响细胞周期进展和细胞亡,影响丝腺的整体发育.
- 这项研究为PrisS在丝虫丝腺发育中的功能提供了新的见解.
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