低氧在细胞衰老中的作用
Haoyu Gao1, Eugenie Nepovimova2, Zbynek Heger3
1College of Life Science, Yangtze University, Jingzhou 434025, China.
Pharmacological research
|June 29, 2023
概括
缺氧,或低氧,通过涉及缺氧诱导因子 (HIF) 和免疫逃避的途径驱动细胞衰老,导致衰老和相关疾病.
科学领域:
- 细胞生物学 细胞生物学
- 衰老研究研究 衰老研究
- 分子医学是分子医学.
背景情况:
- 细胞衰老,以持续分泌的促炎分子为特征,有助于与年龄有关的疾病.
- 调节细胞衰老的精确机制仍然不完全理解.
- 新出现的证据强调了缺氧在调节细胞衰老中的关键作用.
研究的目的:
- 审查了解低氧在细胞衰老中的作用的最新进展.
- 阐明将低氧与细胞衰老联系起来的分子机制.
- 探索基于低氧介导衰老的衰老和相关疾病的潜在治疗点.
主要方法:
- 关于缺氧和细胞衰老的现有文献的综述.
- 对低氧诱导因子 (HIF) 在衰老标志物中的参与进行分析.
- 检查缺氧对自,DNA修复,肠道微生物群和外体RNA的影响.
主要成果:
- 低氧诱导因子1-alpha (HIF-1α) 调节衰老标记物 (p16,p53,拉胺B1,环D1).
- 缺氧促进瘤免疫逃避,并通过p53和CD47.7等因素触发免疫发生.
- 在缺氧下自的激活会诱导衰老标记物 (p21,p16) 和β-银酸酶活性.
- 删除p21基因会影响DNA修复,缓解衰老.
- 慢性缺氧会改变肠道微生物群,减少有益的细菌,并诱导干细胞的衰老.
- 外体微RNA (miRNA) 和长非编码RNA (lncRNA),如miR-424-5p和lncRNA-MALAT1,都与缺氧诱导的衰老有关.
结论:
- 缺氧是通过多种途径显著调节细胞衰老的.
- 了解缺氧介导的衰老为抗衰老策略提供了新的途径.
- 准HIF,免疫逃避,PARP-1,肠道微生物群和外体RNA可能为与衰老相关的疾病提供治疗干预措施.
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