由HDAC3异常引起的GPX4抑制驱动脏铁亡和AKI-CKD进展
Lijun Zhang1, Fang Chen2, Jian Dong3
1Yancheng Medical Research Center of Nanjing University Medical School, Department of Central Laboratory, Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, The First People's Hospital of Yancheng, Yancheng, China; Nanjing University Medical School, Jiangsu Key Lab of Molecular Medicine, Nanjing, China.
基因素脱乙酶3 (HDAC3) 异常驱动铁和病的进展,通过抑制GPX4. 抑制HDAC3可以保护GPX4,减少铁亡并减缓急性病转变为慢性病.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 急性损伤 (AKI) 可以发展为慢性病 (CKD),包括细胞损伤,调节细胞死亡和纤维化.
- 在AKI-CKD进展中,铁亡的作用,一种特定的受调节细胞死亡形式,尚未完全理解.
研究的目的:
- 为了研究铁死在AKI-CKD过渡中的作用.
- 为了确定在AKI-CKD进展过程中驱动铁亡的分子机制.
- 探索针对AKI-CKD的铁亡的治疗策略.
主要方法:
- 利用由阿里斯托洛希克酸 (AA) 和叶酸 (FA) 诱导的AKI-CKD的小鼠模型.
- 评估了管上皮质铁亡,HDAC3表达和GPX4水平.
- 使用Hdac3,HDAC3选择性抑制剂 (RGFP966) 和KLF5抑制剂 (ML264) 的遗传淘汰.
- 分析了Gpx4促进剂活性和基因素乙化.
- 使用GPX4失活器 (RSL3) 确认下游效应.
主要成果:
- 在AKI-CKD过渡的早期观察到管性表皮铁和GPX4抑制,与HDAC3升高相吻合.
- 遗传Hdac3淘汰赛或RGFP966治疗缓解了GPX4抑制,铁死和功能损失.
- HDAC3异常和KLF5通过组织素低乙化共同调节的Gpx4转录抑制.
- 在AKI-CKD中,GPX4是HDAC3驱动的铁和功能障碍的重要媒介.
结论:
- HDAC3异常和随后的GPX4抑制驱动铁亡,导致AKI-CKD进展.
- 抑制HDAC3代表了一种潜在的治疗策略,通过保持GPX4功能来减少铁和减缓AKI-CKD进展.
更多相关视频
07:35Use of Ultra-high Field MRI in Small Rodent Models of Polycystic Kidney Disease for In Vivo Phenotyping and Drug Monitoring
Published on: June 23, 2015
08:46Implementing Patch Clamp and Live Fluorescence Microscopy to Monitor Functional Properties of Freshly Isolated PKD Epithelium
Published on: September 1, 2015
相关概念视频
Acute Kidney Injury IV: Diagnostic Studies and Prevention
Chronic Kidney Disease III: Interprofessional Care
Chronic Kidney Disease I: Introduction
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
Acute Kidney Injury V: Interprofessional Care
Renal Regulation of Acid-Base Balance
In the kidneys, cells within the proximal convoluted tubules (PCT) and the collecting ducts secrete hydrogen ions (H+) into the tubular fluid. Specifically, in the PCT, Na+/H+ antiporters secrete H+ while reabsorbing Na+.
However, the intercalated cells in...
