在小鼠中,SOX4通过EBF2介导的热生成基因程序促进棕色脂肪的发展和维护
Shuai Wang1,2, Ting He1, Ya Luo3
1State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of The Ministry of Education, School of Life Sciences, Xiamen University, 361102, Xiamen, Fujian, China.
Cell death and differentiation
|October 14, 2024
概括
SOX4对于棕色脂肪组织 (BAT) 的发育和功能至关重要. 这种转录因子通过激活EBF2来调节热生成,并通过激活EBF2来对抗肥胖,EBF2对于棕色脂肪的形成和能量消耗至关重要.
科学领域:
- 代谢性疾病研究研究.
- 脂肪组织生物学 脂肪组织生物学
- 热生成调节 热生成调节
背景情况:
- 棕色脂肪组织 (BAT) 对于不发的热生成至关重要,并且是肥胖和代谢障碍的治疗点.
- 控制棕色脂肪发育和功能的精确分子机制尚未完全阐明.
研究的目的:
- 调查SOX4在棕色脂肪组织发育中的作用和发热计划.
- 阐明SOX4影响BAT功能的分子机制.
主要方法:
- 使用条件淘汰赛小鼠模型 (Sox4-MKO和Sox4-BKO) 来评估在BAT中的SOX4功能.
- 进行过度表达研究以评估SOX4水平上升对热生成的影响.
- 进行了分子分析,以确定涉及SOX4.4的下游目标和监管途径.
主要成果:
- 在BAT原体或成熟脂肪细胞中,SOX4的耗尽导致了"白化"的BAT,低温和增加对饮食引起的肥胖的易感性.
- 在BAT中过度表达SOX4增强了热生成,并抵消了饮食引起的肥胖症.
- SOX4被确定为EBF2的关键转录激活剂,这是棕色脂肪命运的决定因素.
- 在S235中,SOX4的PKA介导化促进了其核转移和随后的EBF2激活.
- SOX4和EBF2合作调节热生成中的基因表达.
结论:
- SOX4对于适当的BAT开发和维持其热能计划是不可或缺的.
- SOX4作为EBF2的上游调节剂,在棕色脂肪细胞的分化和功能中发挥关键作用.
- 针对SOX4-EBF2轴为肥胖等代谢疾病提供了潜在的治疗策略.
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