双基酸酶4刺激诱导体干细胞的体生成相关基因表达
Hsiao-Chi Lai1,2, Pei-Hsuan Chen1,2, Chia-Hua Tang1
1Department of Surgery, Kaohsiung Veterans General Hospital, No. 386, Ta-Chung 1st Road, Kaohsiung 813, Taiwan.
International journal of molecular sciences
|November 25, 2023
概括
用单细胞化学吸引蛋白-1 (MCP-1) 刺激二基酶4 (DPP4) 促进脂肪生成,并增加子蛋白水平. 这表明DPP4刺激可能是新的代谢调节治疗策略.
科学领域:
- 代谢研究的研究.
- 脂肪组织生物学 脂肪组织生物学
- 细胞和分子医学是细胞和分子医学.
背景情况:
- 阿迪波尼克丁生成是通过阿迪波尼克丁释放的代谢调节,抗炎症和抗动脉样硬化的治疗点.
- 丁基酸酶4 (DPP4) 刺激在阿迪波内克生产和生成中的作用尚不清楚.
研究的目的:
- 通过使用单细胞化学吸引蛋白-1 (MCP-1) 进行DPP4刺激对血小板衍生生长因子受体α (PDGFRα) 表达和血中的皮蛋白水平的影响.
- 阐明DPP4刺激如何影响脂肪生成和脂肪蛋白分泌的机制.
主要方法:
- 用MCP-1治疗来自人类和小鼠脂肪组织的脉状血管部分 (SVFs).
- 脂肪组织细胞 (PDGFRα+ 和 DPP4+ 细胞) 用MCP-1-补充血进行化.
- 对与脂肪生成和炎症相关的基因和蛋白质表达的分析.
- 在体内研究涉及向小鼠注射MCP-1补充血.
主要成果:
- 在人类SVF中,MCP-1刺激增加了与脂肪生成相关的基因表达 (PPARγ,FABP4) 和DPP4表达.
- 补充MCP-1的血增强了小鼠SVF中的阿迪波涅丁,DPP4和PDGFRα表达,并增加了阿迪波涅丁和DPP4蛋白水平.
- 在体内,补充MCP-1的血增加了PDGFRα+细胞中DPP4+细胞的比例,并提高了小鼠的血腺素水平.
结论:
- DPP4+细胞被确定为关键的脂肪原始细胞.
- 通过MCP-1刺激DPP4,促进脂肪生成,并增加了局部和全身皮蛋白水平.
- DPP4刺激代表了一种潜在的新型治疗方法,用于增强脂肪生成和脂肪素分泌.
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