生殖中心细胞因子驱动的表观遗传控制爱斯坦-巴尔病毒潜伏基因表达
Yifei Liao1,2,3, Jinjie Yan1,2,3,4, Nina R Beri1,2,3
1Division of Infectious Disease, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
PLoS pathogens
|April 29, 2024
概括
爱斯坦-巴尔病毒 (EBV) 使用STAT信号来控制B细胞中的延迟程序. 在生殖中心的细胞因子重新编程EBV表观遗传学,影响淋巴瘤的发展.
科学领域:
- 病毒学 病毒学
- 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:
- 爱斯坦-巴尔病毒 (EBV) 感染了大多数成年人,并与淋巴瘤有关.
- 埃博病毒表现出不同的延迟程序 (例如,延迟III,延迟II),这些程序决定病毒基因表达和B细胞行为.
- 生殖中心 (GC) 微环境对EBV感染的B细胞至关重要,影响延迟程序过渡.
研究的目的:
- 研究GC微环境线索,特别是细胞因子如何影响EBV延迟重编程.
- 阐明控制EBV延迟切换的表观遗传机制和信号通路.
主要方法:
- 在GC细胞因子刺激下,EBV潜伏蛋白表达和表观基因组的表征.
- 使用CRISPR编辑来评估STAT信号在EBV表观遗传调节中的作用.
- 对病毒基因组促进体的细胞因子影响的分析.
主要成果:
- 特定的GC细胞因子 (IL-21,IL-4,IL-10) 在抑制EBNA表达的同时强烈诱导LMP1.
- 其他细胞因子 (IL-15,IL-27) 下调了EBNA,但没有LMP1.
- 在细胞因子介导的EBNA沉默中,STAT3和STAT5通过C促进体的表观遗传变化至关重要.
- 通过STAT3调解的LMP1促进体的表观遗传重塑,包括激活基因素标记.
结论:
- EBV劫持了STAT信号通路,以响应GC细胞因子线索,动态调节其表观基因组.
- 这种选择允许EBV控制延迟程序过渡,影响B细胞命运,并可能导致淋巴发育.
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