抑制SGLT2可以消除衰老细胞,缓解病态衰老
Goro Katsuumi1,2, Ippei Shimizu3,4, Masayoshi Suda1,5
1Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
Nature aging
|May 30, 2024
概括
抑制-葡萄糖共运输体2 (SGLT2) 增强了身体对衰老细胞的自然清除,改善了与年龄相关的疾病. 这种SGLT2抑制提供了间接的老化效应,增强了对衰老细胞的免疫监测.
科学领域:
- 老年学是一门学科.
- 代谢疾病 代谢疾病
- 免疫学 免疫学 免疫学
背景情况:
- 细胞衰老有助于衰老的病理.
- 老化,即消除衰老细胞,可以改善与年龄相关的疾病.
- -葡萄糖共载体2 (SGLT2) 抑制剂用于管理代谢状况.
研究的目的:
- 为了研究SGLT2抑制对衰老细胞清除的影响.
- 为了确定SGLT2抑制是否能改善与年龄相关的病理.
- 阐明SGLT2抑制影响衰老细胞的机制.
主要方法:
- 用SGLT2抑制剂canagliflozin治疗小鼠的方法.
- 在内脏脂肪组织中评估衰老负载.
- 代谢分析以确定涉及的分子途径.
- 在过早衰老的小鼠模型中评估寿命.
主要成果:
- 卡纳格利弗洛辛减少了衰老细胞负担,改善了肥胖小鼠的代谢功能障碍.
- 抑制SGLT2,但不是胰岛素诱导的葡萄糖正常化,影响衰老细胞.
- 卡纳格利弗洛辛在过早衰老的小鼠中延长了寿命.
- 观察到5-aminoimidazole-4-carboxamide-1-β-D-ribofuranoside的升调,通过PD-L1下调来增强免疫媒介清除.
结论:
- 抑制SGLT2表现出间接的老化效应.
- 增强免疫介导衰老细胞的清除是一个关键机制.
- 通过改善免疫监测,SGLT2抑制有可能治疗与年龄相关的疾病.
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