肠道巨细胞的NAD+调节产生抗炎功能,并改善肠道炎症
Young-In Kim1, Inseok Ko2, Eun-Je Yi3
1Laboratory of Microbiology, Department of Pharmacy, and Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon 16499, Republic of Korea; Korea Initiative for fostering University of Research and Innovation (KIURI) Program, Ajou University School of Medicine, Suwon 16499, Republic of Korea.
概括
一种新的治疗候选药物LMT503增强了巨细胞中的尼古丁胺氨基二核酸 (NAD+) 水平,促进了抗炎反应. 这种方法显示了治疗炎症性肠病 (IBD) 的希望,通过重新平衡肠道免疫平衡.
科学领域:
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
- 药理学 药理学是指药理学的学科.
背景情况:
- 肠道巨细胞对免疫平衡至关重要,但它们的失调有助于炎症性肠病 (IBD).
- 巨细胞中尼古丁胺氨酸二核酸 (NAD+) 水平降低与严重的结肠炎有关.
- 向巨细胞为IBD提供了一个潜在的治疗策略.
研究的目的:
- 调查LMT503的抗炎作用,这是IBD治疗候选药物.
- 为了确定LMT503是否可以调节巨细胞偏向向抗炎性表型.
- 评估LMT503在硫酸 (DSS) 诱导的大肠炎小鼠模型中的疗效.
主要方法:
- 用LMT503.3治疗骨髓衍生的巨细胞 (BMDMs).
- 对细胞因子和酶水平 (IL-10,Arg1,TNF-α,iNOS,IL-6,SIRT1,SIRT3,SIRT6) 的分析.
- 在DSS诱导的大肠炎小鼠模型中评估LMT503,包括结肠炎症和免疫细胞透的分析.
主要成果:
- 在BMDM患者中,LMT503治疗增加了抗炎标志物 (IL-10,Arg1,SIRT1,SIRT3,SIRT6) 和降低了促炎标志物 (TNF-α,iNOS,IL-6).
- 在DSS诱导的大肠炎模型中,口服LMT503改善了结肠炎症并减少了炎症细胞透.
- LMT503诱导了结肠巨细胞的抗炎转变,由降低TNF-α和iNOS以及增加IL-10证明.
结论:
- LMT503增强了NAD+水平,推动巨细胞向抗炎和免疫抑制的表型发展.
- 通过向肠道巨细胞,LMT503证明了改善IBD的治疗潜力.
- LMT503的免疫调节效应取决于表达CX3CR1的肠内居民巨细胞.
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