通过调节Th17细胞分化,素乳增强的IRF4与酸盐诱导的肝纤维化有关
Weiyong Chen1, Peiwen Wang2, Yan Xie3
1Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Suzhou Institute for Advanced Study of Public Health, Gusu School, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China.
暴露会增加乳酸盐,从而导致肝纤维化,而乳酸盐通过组织素乳化促进Th17细胞分化. 抑制乳酸生产可以缓解肝纤维化,提供新的治疗策略.
科学领域:
- 毒理学 毒理学 毒理学
- 免疫学 免疫学 免疫学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 是一种常见的环境毒素,与肝纤维化有关.
- 基斯乳化在炎症性疾病中起作用,包括肝纤维化和免疫细胞调节.
研究的目的:
- 为了研究酸盐诱导的肝纤维化中组织蛋白乳酸和Th17细胞分化的机制.
- 探索乳酸在这个过程中的作用及其治疗潜力.
主要方法:
- 使用动物模型 (小鼠) 和细胞培养实验 (HepG2和Jurkat细胞).
- 评估肝纤维化,糖溶解,乳酸盐水平,组织素乳化 (Kla,H3K18la),Th17细胞分化,IL-17A分泌和肝星细胞激活.
- 使用牛酸盐,乳酸脱酶抑制剂,以测试治疗效果.
主要成果:
- 慢性暴露诱导了小鼠的肝纤维化,高糖解和乳酸增加,促进了Th17细胞分化和IL-17A分泌.
- 氧沙酸盐治疗减少了Th17细胞分化和肝纤维化.
- 在细胞模型中,增加了乳酸盐和基因素乳化,增强了Th17细胞分化和IL-17A分泌,从而激活了肝脏星状细胞.
结论:
- 肝细胞产生的乳酸通过H3K18la和IRF4促进Th17细胞的分化,增加IL-17A的分泌和激活肝星细胞,导致酸盐诱导的肝纤维化.
- 这项研究揭示了一种新的机制,涉及素诱导的肝纤维化中的组织激素乳酸化.
- 研究结果表明,针对肝纤维化治疗的乳酸代谢和基因素乳酸化潜在的治疗策略.
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