腺相关病毒感染的重要受体
S Pillay1, N L Meyer2, A S Puschnik1
1Department of Microbiology and Immunology, Stanford University School of Medicine, 299 Campus Drive, Stanford, California 94305, USA.
Nature
|January 28, 2016
概括
研究人员发现了一种新的AAV受体 (AAVR),对腺相关病毒 (AAV) 感染至关重要. 这一发现促进了对基因治疗载体的理解,并可能改善基于AAV的治疗方法.
科学领域:
- 分子生物学
- 病毒学
- 基因治疗
背景情况:
- 由于其安全性和有效性,腺相关病毒 (AAV) 载体对基因治疗具有前景.
- 了解AAV细胞进入机制,特别是涉及的受体,对于优化基因传递至关重要.
- 目前对AAV细胞附着和进入途径的知识仍然不完整.
研究的目的:
- 识别介导腺相关病毒 (AAV) 进入细胞的蛋白质受体.
- 在AAV感染中描述已识别的受体的功能和作用.
主要方法:
- 在人类单体细胞系中进行了公正的基因查,以确定AAV血清型2 (AAV2) 感染的宿主因子.
- 鉴定出蛋白质的细胞局部,内细胞和与AAV颗粒的相互作用.
- 评估了受体和抗体阻断对各种细胞类型和体内AAV感染的基因剥离的影响.
主要成果:
- 确定KIAA0319L,现在称为AAV受体 (AAVR),对于AAV2感染至关重要.
- 证明AAVR促进了快速的内细胞化和传输到Golgi网络,直接结合AAV2颗粒.
- 表明AAVR是所有测试的AAV血清型的通用受体,并且它的缺失使细胞系和小鼠对AAV感染具有抵抗力.
结论:
- AAVR是关键宿主因子,也是腺相关病毒 (AAV) 感染的通用受体.
- 这一发现为AAV细胞进入机制提供了基本的见解.
- 基于AAV的基因疗法的有效性和热带性是AAV的潜在目标.
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