在胰岛素抵抗条件下,TNFα-CXCR1/2是犯罪中的合作伙伴
Vanessa Castelli1, Housem Kacem1, Laura Brandolini2
1Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.
抑制CXCR1/2可以改善2型糖尿病 (T2D) 模型中的胰岛素信号传递和葡萄糖代谢. 准TNFα-CXCR1/2通路为管理胰岛素抵抗 (IR) 和T2D提供了一个有前途的治疗策略.
科学领域:
- 代谢性疾病是一种代谢性疾病.
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 2型糖尿病 (T2D) 涉及慢性高血糖,胰岛素抵抗 (IR),氧化应激和炎症.
- 肥胖和久坐不动的生活方式是IR和T2D的关键风险因素.
- 代谢物,脂质和TNFα等炎症媒介在IR发育中起作用.
研究的目的:
- 研究TNFα和CXCR1/2在IR中的作用.
- 在IR模型 (脂肪细胞和肝细胞) 中评估CXCR1/2抑制的治疗潜力.
主要方法:
- 在脂肪细胞和肝细胞中使用TNFα挑战开发了IR模型.
- 评估葡萄糖吸收,胰岛素信号通路 (p-Akt,p-JNK) 和基因表达 (IGF,GLUT2).
- 研究了CXCR1/2抑制对TNFα诱导的IR的影响.
主要成果:
- 治疗TNFα诱导了IR标志物 (减少p-Akt,增加p-JNK).
- 抑制CXCR1/2恢复了胰岛素信号传递 (p-Akt,p-JNK) 和改善了葡萄糖吸收.
- 抑制CXCR1/2使IGF和GLUT2表达正常化,增强胰岛素敏感性.
结论:
- 在红外线中,CXCR1/2在调节炎症和胰岛素信号传递方面发挥着至关重要的作用.
- 抑制CXCR1/2有效减轻IR并改善葡萄糖代谢.
- 针对TNFα-CXCR1/2通路是对IR和T2D的有前途的治疗策略.
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