隙二元化提供了对环境侮辱的强度,并且是血管完整性所必需的
Kristina Preusse1, Kim Cochran1, Quanhui Dai1,2
1Division of Developmental Biology, Department of Pediatrics, University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America.
PloS one
|January 24, 2025
概括
在干净的环境中,缺陷分离的小鼠表现出改善的心脏功能,但会发展出严重的血管缺陷和出血. 这突显了Notch信号中的基因环境相互作用.
科学领域:
- 发展生物学 发展生物学
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 诺奇细胞内域 (NICD) 对于基因调节至关重要,作为转录因子复合体.
- 痕信号在发育和平衡中起着至关重要的作用,影响细胞分化和组织维护.
- 缺口二分化 (NDD) 的小鼠在多种组织中表现出缺陷,对环境因素敏感度增加.
研究的目的:
- 调查诺奇二度化缺陷对心脏表型和环境敏感性的影响.
- 在NDD小鼠中探索血管表型和基因环境相互作用.
- 评估Notch信号在不同系统中的屏障形成中的作用.
主要方法:
- 产生和分析Notch二分化缺陷 (NDD) 的小鼠,包括复合异构细胞 (N1RA/-;N2RA/-).
- 在低过敏条件下的NDD小鼠 (控制的食物/床) 住所,以评估环境影响.
- 详细检查心脏,血管 (大脑血管,脏血管扩张) 和发育现象,包括水脑和出血.
主要成果:
- 在NDD小鼠中,低过敏性状况改善了心脏表型和硫酸 (DSS) 敏感性.
- 在低过敏条件下的复合异位NDD小鼠发生了严重的水头和出血.
- NDD小鼠表现出多种血管缺陷,包括泄漏和形,导致21日左右的出生后死亡.
结论:
- NDD小鼠模型是研究血管表型和基因与环境相互作用的宝贵工具.
- 环境因素可以调节Notch信号缺陷小鼠表型的严重程度.
- 提出了一个潜在的非正规的Notch信号通路,可以调节肠道,皮肤和血液系统中的屏障完整性.
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