伪狂犬病病毒高调低密度脂蛋白受体,以促进病毒进入
Ying-Xian Ma1,2,3, Ya-Jing Chai1,2,3, Ya-Qi Han1,2,3
1College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China.
Journal of virology
|December 6, 2023
概括
伪狂热病毒 (PRV) 通过激活固醇调节元素结合蛋白 (SREBPs) 来劫持低密度脂蛋白受体 (LDLR) 进入. 准LDLR可能会提供针对PRV感染的新策略.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 生物化学 生化学
背景情况:
- 伪狂热病毒 (PRV) 导致猪患有奥耶斯基病,导致严重的经济损失.
- PRV可能会感染人类,强调需要更好的控制策略.
- 低密度脂蛋白受体 (LDLR) 在PRV感染中的作用尚不清楚.
研究的目的:
- 为了研究LDLR在PRV感染中的作用.
- 阐明PRV利用LDLR的机制.
- 探索针对PRV的潜在治疗点.
主要方法:
- 在感染PRV的细胞和动物组织中评估LDLR表达.
- 使用SREBP抑制剂和小干扰RNA来阻止LDLR上调.
- 研究了LDLR操纵对PRV扩散和进入的影响.
- 研究了LDLR和PRV在细胞表面上的相互作用.
主要成果:
- 在各种细胞类型和组织中,PRV感染对LDLR mRNA和蛋白质水平进行了上调.
- 抑制SREBPs可以防止PRV诱导的LDLR上调和病毒复制.
- 过度表达LDLR增强了PRV的扩散,而其干扰则减少了它.
- 发现LDLR调解了PRV的附着和进入,与血膜上的病毒相互作用.
结论:
- PRV激活SREBPs以诱导LDLR表达,这对于病毒进入和扩散至关重要.
- LDLR作为PRV的共同受体,促进其入侵.
- 针对LDLR-PRV相互作用,为开发PRV疫苗和疗法提供了一个潜在的战略.
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