DPP4抑制会影响hiPSC衍生的稳态HLCs中的代谢和与炎症相关的途径
Christiane Loerch1, Wasco Wruck1, Annika Wittich2
1Institute for Stem Cell Research and Regenerative Medicine, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany.
Frontiers in cell and developmental biology
|March 16, 2026
概括
这项研究使用干细胞模型来表明,二乙酶4 (DPP4) 促进了与代谢功能障碍相关的脂肪性肝病 (MAFLD). 用vildagliptin抑制DPP4部分逆转了疾病表型,提供了一个潜在的治疗策略.
科学领域:
- 肝病学和干细胞生物学
- 分子和细胞生物学分子和细胞生物学
背景情况:
- 与代谢功能障碍相关的脂肪性肝病 (MAFLD) 很普遍,并与并发病相关,但治疗选择有限.
- 滴样酶4 (DPP4),也称为CD26,涉及各种炎症和代谢条件.
研究的目的:
- 为了研究DPP4在MAFLD发病过程中的作用,使用体外人类诱导多能干细胞 (hiPSC) 衍生的肝细胞样细胞 (HLC) 模型.
- 评估DPP4抑制在MAFLD中的治疗潜力.
主要方法:
- 通过使用油酸 (OA) 和通过下一代测序 (NGS) 分析的转录基因变化,在hiPSC衍生的HLC中诱导脂肪酸.
- 测量DPP4活性和分泌在稳态HLCs.
- 用维达格利普丁 (VILDA) 抑制DPP4,并评估了全球转录基因变异和特定的基因/蛋白质表达.
主要成果:
- 食OA诱导了MAFLD相关的途径 (例如,PPAR,TNF信号传递) 和增加肝脏DPP4活性和分泌.
- DPP4抑制调节的基因表达与脂肪酸代谢, purin代谢和炎症有关.
- 维尔达格利普丁治疗在转录层面上部分改善了性表型.
结论:
- 该hiPSC-HLC模型有效地回顾了MAFLD的DPP4依赖性方面,将DPP4与代谢和炎症途径联系起来.
- DPP4抑制显示出作为MAFLD治疗策略的潜力.
- 进一步研究DPP4在MAFLD和其他疾病中的作用是有必要的.
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