经过实验感染SARS-CoV-2的动物产生针对G-蛋白结合受体的功能性自身抗体
Gerd Wallukat1, Kerstin Wernike2, Dipthi Bachamanda Somesh3
1Berlin Cures GmbH, 13125 Berlin, Germany.
Biomedicines
|October 28, 2023
概括
感染SARS-CoV-2可以触发功能性自身抗体,向牛和的G蛋白结合受体,可能影响心血管功能. 这些自身抗体影响心率,为感染后的并发症提供了洞察力.
科学领域:
- 心血管研究研究心血管研究
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
背景情况:
- SARS-CoV-2 感染与心血管并发症有关.
- 针对G蛋白结合受体 (GPCRs) 的功能性自身抗体与这些影响有关.
- 在动物模型中研究GPCR自身抗体为SARS-CoV-2病原体提供了洞察力.
研究的目的:
- 调查SARS-CoV-2感染的牛和鱼中针对GPCRs的功能性自身抗体的产生和活性.
- 评估这些自身抗体对心血管的影响.
- 确定针对的特定GPCR和行动机制.
主要方法:
- 在牛和中实验性SARS-CoV-2感染.
- 对特定GPCRs (β2-上腺受体,AT1受体,M2受体,MAS受体) 的功能性自身抗体的评估.
- 生物测试用于慢性反应,结合域的识别和受体对抗剂的使用.
主要成果:
- 六只受感染的牛中,有两只产生了针对多个GPCR的功能性自身抗体,诱导了慢性作用.
- 受感染的产生了针对β2-上腺受体和M2受体的自身抗体,具有类似的生物活性.
- 确认了对特定GPCRs的自身抗体结合,并且对抗体阻断了反应.
结论:
- 感染SARS-CoV-2可以诱导功能性自身抗体,向牛和的GPCRs.
- 这些自身抗体表现出影响心血管功能的生物活性.
- 这些发现突出了SARS-CoV-2相关心血管并发症的潜在机制.
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