乙型肝炎病毒和抗原诱导非典型的新陈代谢,并差异调节巨细胞的编程细胞死亡
Yumei Li1, Christine Wu1, Jiyoung Lee1
1Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America.
PLoS pathogens
|March 11, 2024
概括
乙型肝炎病毒 (HBV) 感染会改变巨细胞的新陈代谢,促进氧化酸化 (OXPHOS) 并阻碍抗病毒反应. 这种由HBV e抗原 (HBeAg) 的重编程也触发了特定的巨细胞死亡途径,有助于病毒的持久性.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 细胞的新陈代谢
背景情况:
- 巨细胞表现出不同的代谢表型 (M1:高糖解,低氧化物;M2:低糖解,高氧化物).
- 乙型肝炎病毒 (HBV) 感染是一个全球性的健康问题,它与免疫系统的相互作用是复杂的.
研究的目的:
- 研究由HBV引起的M1-类巨细胞的代谢重编程.
- 阐明HBV影响巨细胞代谢和抗病毒功能的机制.
- 为了了解HBV如何影响巨细胞,编程细胞死亡.
主要方法:
- 对巨细胞两极分化和代谢活动的分析 (OXPHOS,糖解).
- 研究涉及HBV e抗原 (HBeAg),类似收费受体4 (TLR4),死亡受体5 (DR5) 和死亡相关蛋白3 (DAP3) 的分子途径.
- 评估巨细胞的亡和亡.
主要成果:
- 由HBV诱导的M1-类巨体表现出高的OXPHOS和低的糖解,这是一个非典型的代谢特征.
- HBeAg通过TLR4-DR5-DAP3途径调节这种代谢转变,增强线粒体基因表达和三酸循环活性.
- HBeAg诱导M1和M2巨细胞的亡以及M1巨细胞的亡,从而导致HBV的持久性.
结论:
- 乙型肝炎病毒积极重编程巨细胞的线粒体代谢,以抑制抗病毒反应.
- HBeAg在代谢重编程和诱导巨细胞中独特的编程细胞死亡途径中发挥着关键作用.
- 这些发现为HBV病原和潜在的治疗点提供了新的见解.
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