脏线粒体ATP转运器切除改善肥胖引起的CKD
Anna Permyakova1, Sharleen Hamad1, Liad Hinden1
1Obesity and Metabolism Laboratory, Faculty of Medicine, School of Pharmacy, The Institute for Drug Research, The Hebrew University of Jerusalem, Jerusalem, Israel.
Journal of the American Society of Nephrology : JASN
|January 11, 2024
概括
细胞中的腺核酸转位酶2 (ANT2) 枯竭通过转移新陈代谢和维护功能,防止肥胖引起的慢性病 (CKD). 这一发现为CKD提供了新的治疗点.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 线粒体生物学 线粒体生物学
- 代谢疾病 代谢疾病
背景情况:
- 肥胖引起的慢性病 (CKD) 涉及到脏近道管细胞 (RPTCs) 的ATP生产和运输受损.
- 腺核酸转位酶2 (ANT2) 对于调节RPTC中的细胞ATP含量至关重要.
- 了解ANT2的作用是解决与肥胖相关的功能障碍,脂毒性和纤维化问题的关键.
研究的目的:
- 调查ANT2在RPTCs中在肥胖引起的CKD病变发生中的作用.
- 在高脂肪饮食条件下,确定ANT2枯竭对脏形态,功能和新陈代谢的影响.
主要方法:
- 产生RPTC特有的ANT2淘汰赛 (RPTC-ANT2-/-) 鼠标.
- 在24周的高脂肪饮食养中.
- 综合评估脏形态,功能和代谢变化使用转录组学,蛋白质组学和代谢组学.
主要成果:
- 肥胖的RPTC-ANT2-/-小鼠表现出保存的形状和功能,没有脏脂毒性或纤维化的迹象.
- 在RPTC中ANT2的枯竭诱导了由Ant4.4介导的从脂肪酸氧化转向有氧糖解的代谢转变.
- 这种新陈代谢重新连接保护了线粒体,并提高了RPTC存活率.
结论:
- 在肥胖引起的CKD的发展中,RPTC-ANT2起着重要作用.
- 取消RPTC-ANT2通过促进线粒体保护和RPTC存活来保护损伤.
- 这些发现突出了肥胖引起的CKD的新治疗目标.
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