有效的SARS-CoV-2复制肠上皮细胞单层,从人类诱导的多能干细胞中分化出来
Shohei Minami1, Naomi Matsumoto1, Hiroko Omori2
1Department of Virology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan.
Scientific reports
|July 18, 2023
概括
人类诱导的多能干细胞衍生肠上皮细胞 (IEC) 单层为研究SARS-CoV-2提供了一个新的工具. 这些细胞支持有效的病毒复制,TMPRSS2抑制阻断感染,验证了它们在研究中的使用.
科学领域:
- 病毒学 病毒学
- 干细胞生物学 干细胞生物学
- 胃肠病学 胃肠病学
背景情况:
- 严重急性呼吸道综合征冠状病毒2 (SARS-CoV-2) 导致全球大流行,需要强大的研究工具.
- 现有的研究SARS-CoV-2感染的模型,如有机体,有局限性.
- 对于SARS-CoV-2研究而言,有必要提供可访问和生理相关的模型.
研究的目的:
- 建立和验证一种用于研究SARS-CoV-2感染的新型体外模型,使用人类诱导的多能干细胞衍生的肠上皮细胞 (iPSCs).
- 评估这些差异化肠上皮细胞 (IEC) 单层作为SARS-CoV-2的传播系统的适用性.
- 在这个模型中调查宿主因子,特别是TMPRSS2在SARS-CoV-2感染中的作用.
主要方法:
- 从人类诱导的多能干干细胞 (iPSC) 生成单层肠上皮细胞 (IEC).
- 在差异化的IEC单层中评估宿主因子表达 (ACE2和TMPRSS2).
- 用SARS-CoV-2感染IEC单层,并评估病毒复制.
- 测试TMPRSS2抑制对SARS-CoV-2感染的疗效.
主要成果:
- 差异化IEC单层表达高水平的血管素转化酶2 (ACE2) 和跨膜蛋白酶血清2 (TMPRSS2),这是SARS-CoV-2进入的关键.
- 在这些iPSC衍生的IEC单层中,SARS-CoV-2有效地复制.
- 在IEC模型中,抑制TMPRSS2有效地阻止了SARS-CoV-2感染.
- 来自iPSC的IEC单层系统被证明适合在生理相关条件下研究SARS-CoV-2.
结论:
- 人类iPSC衍生的IEC单层为SARS-CoV-2研究提供了有价值和生理相关的模型.
- 这种模型系统有助于研究病毒复制和宿主-病原体相互作用.
- 这些发现支持使用iPSC衍生的IEC单层用于药物查和了解SARS-CoV-2病原体.
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