西塔格利普丁诱导可容忍的人类树突细胞
Marija Drakul1, Sergej Tomić2, Marina Bekić2
1Medical Faculty Foca, University of East Sarajevo, 73300 Foča, R. Srpska, Bosnia and Herzegovina.
International journal of molecular sciences
|December 9, 2023
概括
抗糖尿病药物西塔格利普丁通过调节它们的分化和功能,促进了宽容性树突细胞 (DC) 的发展. 这表明,西塔利普丁在治疗自身免疫性疾病和预防移植排斥方面有潜在的应用.
科学领域:
- 免疫学 免疫学 免疫学
- 内分泌学 在内分泌学.
- 细胞生物学 细胞生物学
背景情况:
- 西塔格利普丁是一种抗糖尿病药物,可以抑制二二基化酶 (DPP) - 4/CD26.
- 西塔格利普丁除了降血糖效果之外,还具有抗炎和免疫调节性质.
研究的目的:
- 调查西塔利普丁对人类单细胞衍生树突细胞 (MoDCs) 的分化和功能的影响.
- 探索在控制自身免疫性疾病和全移植排斥中,西塔利普丁诱导的MoDCs的潜力.
主要方法:
- 人类MoDCs在不同的时间点 (0d和4d) 用或不用西塔利普丁生成和成熟.
- 通过表达表面标记物 (CD40,CD83,CD86,CD14,CD26,HLA-DR) 和细胞因子产生 (IL-1β,IL-12p70,IL-23,IL-27,IL-10,TGF-β) 来评估MoDC的分化和成熟.
- 在共同培养系统中评估了T细胞全增殖反应,T辅助细胞两极分化和调控性T细胞 (Treg) 诱导. 西部斑点分析用于检查NF-κB和p38MAPK信号通路.
主要成果:
- 西塔利普丁损害了MoDC分化和成熟,减少了共刺激分子和炎症性细胞因子表达,同时增加了耐受性标记物 (CD26,ILT4,IDO1) 和免疫调节性细胞因子 (IL-10,TGF-β).
- 用西塔利普丁治疗的MoDCs表现出减少的全刺激能力,抑制了Th1/Th17反应,增加了Th2/Treg反应.
- 西塔格利普丁治疗增加了Tregs (包括Tr1细胞) 的频率,并调节了NF-κB和p38MAPK信号通路.
结论:
- 西塔格利普丁诱导了宽容性树突细胞的分化.
- 西塔格利普丁对DCs的免疫调节作用表明它对自身免疫性疾病和预防移植排斥的治疗潜力.
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