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在皮肤发育和伤口再生期间,IL-1和WNT通路在调节皮肤脂肪细胞系细胞中的动态相互作用
Lixiang Sun1, Xiaowei Zhang1, Shuai Wu1
1State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian 361102, China.
Cell reports
|June 18, 2023
概括
皮肤脂肪细胞的可塑性是由IL-1-NF-κB和WNT信号通路调节的. 这些途径影响脂肪生成,伤口愈合和痕形成,提供潜在的治疗点.
科学领域:
- 细胞生物学 细胞生物学
- 皮肤病学 皮肤病学
- 分子生物学分子生物学
背景情况:
- 皮肤脂肪细胞系细胞表现出显著的可塑性,经历可逆差异化和脱差异化.
- 了解控制这种可塑性的分子机制对于解决诸如受损伤愈合和痕形成等疾病至关重要.
研究的目的:
- 为了对皮肤纤维细胞 (dFB) 细胞状态进行分类,并确定调节脂肪生成的关键信号通路.
- 研究特定信号通路在伤口诱导的脂肪生成和肌纤维细胞形成中的作用.
- 探索这些途径在人类胆固醇形成中的参与.
主要方法:
- 发育中的或受伤的小鼠皮肤的单细胞RNA测序.
- 细胞分化轨迹分析以确定信号通路.
- 研究WNT激活和抑制Gsk3对dFB和脂肪细胞的影响.
主要成果:
- dFB被分为不同的非增脂和增脂状态.
- IL-1-NF-κB信号与脂肪生成有积极的关联,而WNT-β-catenin信号与脂肪生成有负面的关联.
- 中性粒细胞通过IL-1R-NF-κB-CREB轴介导伤口诱导的脂肪生成.
- WNT激活抑制dFB脂肪生成,但促进脂解和脱分化,有助于肌纤维细胞的形成.
- 持续的WNT激活和受阻的脂肪生成在人体 keloids 中被观察到.
结论:
- 确定IL-1-NF-κB和WNT信号作为皮肤脂肪细胞可塑性的关键调节者.
- 揭示了受伤诱导的脂肪生成和肌纤维细胞形成的机制.
- 突出了WNT信号在 keloid 病原发生中的作用,表明了治疗潜力.
关键词:
CP: 发育生物学科普:干细胞研究一个IL-1的IL-1.在WNT中使用WNT.脂肪细胞的原始细胞.脂质生成 (adipogenesis) 是一种皮肤脂肪细胞脂肪溶解是指脂质分解的过程.肌纤维母细胞细胞.这就是 scRNA-seqq.皮肤的发育 皮肤的发育伤口再生 伤口再生更多相关视频
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