卡波西肉瘤相关的疹病毒与爱斯坦-巴尔病毒合作,共同转化一小组人类B细胞以致癌
Mitchell Hayes1, Wei Wang2, Isabela Fraga de Andrade1
1McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, Wisconsin, United States of America.
PLoS pathogens
|June 23, 2025
概括
人类B细胞可以被卡波西肉瘤相关的疹病毒 (KSHV) 和爱斯坦-巴尔病毒 (EBV) 共同转化. 这些共同转化细胞在小鼠中形成瘤,并模仿原发泄性淋巴瘤 (PEL).
科学领域:
- 在瘤学瘤学.
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
背景情况:
- 卡波西肉瘤相关性疹病毒 (KSHV) 单独不会转化人类B细胞.
- 众所周知,爱斯坦-巴尔病毒 (EBV) 能够转化B细胞.
- 在B细胞中KSHV和EBV的合作转化潜力在很大程度上仍未被探索.
研究的目的:
- 研究KSHV和EBV对人类B细胞的合作转化.
- 描述KSHV/EBV联合转化B细胞的特性.
- 为研究KSHV/EBV相关淋巴瘤建立一个可处理的模型.
主要方法:
- 周围和桃体B细胞感染KSHV和EBV.
- 细胞不朽化和细胞因子分泌的评估.
- 在NSG小鼠中的瘤发生研究.
- 病毒和细胞基因表达的 in vitro 和 in vivo 分析.
- 与初级输出性淋巴瘤 (PEL) 细胞系和活检的比较.
主要成果:
- KSHV和EBV不有效地感染B细胞,但合作共转化一小部分.
- 共同转换的细胞表现出不朽化,分泌细胞因子,并依赖于两种病毒的生长.
- 同转化细胞优先在小鼠中形成瘤,超越仅转化EBV的细胞.
- 病毒基因表达在体外和体内生长过程中发生变化,KSHV增加,EBV减少.
- 共同转化细胞中的细胞基因表达与PEL活检的基因表达相似.
结论:
- KSHV和EBV合作转化人类B细胞,创建了PEL的模型.
- 共同转化细胞提供了一个平台来研究两种病毒在淋巴发育中的作用.
- 这种模型有助于理解与KSHV/EBV相关的癌症的发病过程.
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