CNP阻断了线粒体去极化,并抑制了SARS-CoV-2的复制in vitro和in vivo
James Logue1,2, Victoria M Melville1,2, Jeremy Ardanuy1,2
1The Department of Microbiology and Immunology, The University of Maryland School of Medicine, Baltimore,Maryland, USA.
bioRxiv : the preprint server for biology
|June 19, 2023
概括
研究人员发现,2 2
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- COVID-19 流行病造成了全球健康和经济的重大破坏.
- 现有的治疗方法主要针对早期的病毒复制阶段,因此需要针对晚期的干预目标.
- 识别SARS-CoV-2的新目标对于开发有效的抗病毒策略至关重要.
研究的目的:
- 调查2',3'-循环核酸3'-二酶 (CNP) 在SARS-CoV-2复制中的作用.
- 确定CNP是否可以作为抑制晚期病毒聚集的治疗标.
主要方法:
- 评估了CNP对SARS-CoV-2病毒产生和病毒结构蛋白转化的影响.
- 通过监测线粒体脱极化,研究了CNP线粒体向抗病毒活性的必要性.
- 利用表达人类ACE2和CNP的腺病毒在小鼠模型中评估体内疗效.
主要成果:
- 发现CNP可以抑制SARS-CoV-2病毒组合,减少病毒标位而不会影响病毒蛋白质合成.
- 线粒体向CNP对于其抑制作用至关重要,防止线粒体脱极化.
- 这项研究涉及CNP对线粒体通透过渡孔 (mPTP) 的抑制,阻断病毒组合.
- 腺病毒介导的CNP表达显著降低了小鼠肺中的SARS-CoV-2标位,达到无法检测的水平.
结论:
- 2',3'-cyclic-nucleotide 3'-phosphodiesterase (CNP) 有效地抑制了SARS-CoV-2病毒组合的发生.
- CNP的机制涉及向线粒体和抑制mPTP,代表一种新的抗病毒途径.
- 作为一种潜在的治疗目标,CNP显示出开发新的晚期SARS-CoV-2抗病毒药物的潜力.
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