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脂肪组织特异性的Yap淘汰会通过抑制脂解来加剧饮食引起的肥胖

Huabing Xiao¹, Ping Jiang², Fan Xia²

¹Department of Endocrinology and Metabolism, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, China; Jiangxi Hypertension Research Institute, Nanchang, 330006, China; Jiangxi Branch of National Clinical Research Center for Metabolic Disease, Nanchang, 330006, China.

Molecular and cellular endocrinology

|August 8, 2025

概括

YAP蛋白在调节脂肪组织中的脂肪分解 (脂解) 中起着关键作用. 在雄性小鼠中缺少它会使肥胖症恶化,这突出了YAP的观点.

科学领域:

细胞生物学细胞生物学
代谢研究研究代谢研究
肥胖研究肥胖研究

背景情况:

YAP (YES相关蛋白) 是各种细胞功能的关键调节者,包括增殖,分化和亡.
虽然已知YAP在体外抑制脂肪生成,但其在肥胖发展中的确切作用仍然不完全理解.

研究的目的:

调查YAP在脂肪组织中的体内作用及其对肥胖的贡献.
阐明YAP影响与肥胖相关的代谢过程的分子机制.

主要方法:

生成一个特定于脂肪组织的Yap淘汰赛小鼠模型 (YapaKO).
在YapaKO小鼠中评估肥胖现型食高脂肪饮食.
分析脂溶性活性,脂溶性酶 (ATGL,HSL) 的基因表达,以及对禁食和暴露于寒冷的生理反应.

主要成果:

与对照对象相比,雄性YapaKO小鼠表现出加剧的高脂肪饮食诱导的肥胖表型,而雌性小鼠则没有.
在YapaKO小鼠中观察到关键甘油三酶脂解酶 (ATGL,HSL) 的表达减少,导致脂解活性抑制.
禁食诱导的脂肪溶解受损导致循环自由脂肪酸减少,寒冷暴露后温度调节受损,禁食雄性小鼠的运动能力下降.

结论:

YAP作为脂肪组织内的脂解的生理调节剂.
脂肪组织中YAP的激活促进脂解,可能作为减轻肥胖的治疗策略.

关键词:

脂质溶解是什么脂质溶解肥胖问题肥胖问题哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈

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