内源逆转录病毒元素和猫类白血病病毒之间的多重重组合事件
Minh Ha Ngo1, Loai AbuEed1, Junna Kawasaki2
1Laboratory of Molecular Immunology and Infectious Disease, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan.
Journal of virology
|January 19, 2024
概括
再组合猫类白血病病毒 (FeLV-B,FeLV-D,XR-FeLV) 源自家猫内外源和内源逆转录病毒之间的再组合事件,导致FeLV的发病.
科学领域:
- 病毒学 病毒学
- 复原病毒是一种复原病毒.
- 猫的健康 猫的健康
背景情况:
- 猫类白血病病毒 (FeLV) 导致猫的造血性疾病.
- FeLV亚组 (A,B,C,D,E,T) 是由于病毒受体相互作用而产生的.
- 重组FeLV-D和FeLV-B的传播和疾病特异性尚未完全理解.
研究的目的:
- 在家猫中调查外源和内源逆转录病毒之间的重组事件.
- 阐明复合FeLV变种的出现和传播.
- 了解内源逆转录病毒 (ERV) 在FeLV病变发生过程中的作用.
主要方法:
- 来自一家患有淋巴瘤和白血病的家猫的FeLV分析.
- 分离的FeLV亚群和重组病毒的遗传测序和特征.
- 对FeLV-B.病毒受体使用的调查.
主要成果:
- 在FeLV.中观察到涉及内源逆转录病毒 (ERV) 的多重重组合事件.
- FeLV-D 克隆集成与患有淋巴瘤的猫的病变发生有关.
- FeLV-B在一只猫中使用猫的Pit1和Pit2受体,而在另一个猫中仅使用Pit1.
- 分离了XR-FeLV,一种含有与FcERV-gamma4同源的X区域的重组病毒.
- 大多数重组病毒似乎出现了de novo,但FeLV-B的传播也可能发生.
结论:
- 内源逆转录病毒有助于病原性复合FeLV变体的出现.
- 外源和内源逆转录病毒之间的重组是FeLV进化和疾病的重要因素.
- 这项研究突出了猫白血病中ERV和外源逆转录病毒之间的复杂相互作用.
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