单细胞RNA测序突出了康复COVID-19孕妇NK细胞功能受损的情况
Madhuri S Salker1, Nor Haslinda Abd Aziz2, Natalia Carman Prodan1
1Department of Women's Health, Research Institute for Women's Health, University of Tübingen, Tübingen, Germany.
Frontiers in immunology
|July 15, 2025
概括
SARS-CoV-2 感染显著改变孕妇的免疫细胞,即使在康复后. 自然杀手 (NK) 细胞和其他免疫细胞显示功能减弱和基因表达改变,可能解释长期的COVID症状.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 生殖健康 生殖健康
背景情况:
- 孕期涉及免疫系统重塑以保护母亲和胎儿.
- 了解SARS-CoV-2对怀孕免疫力的影响至关重要.
研究的目的:
- 调查SARS-CoV-2对孕妇免疫环境的影响.
- 分析活跃感染和康复后的免疫变化.
主要方法:
- 在两个队列中利用14色流细胞计测试进行免疫型定型.
- 使用单细胞RNA测序 (scRNA-seq) 来分析基因表达.
- 评估了自然杀手 (NK) 细胞的细胞毒性功能和蛋白质水平.
主要成果:
- 感染SARS-CoV-2导致感染期间和感染后NK细胞持续减少.
- scRNA-seq在感染后的NK细胞,单细胞,T细胞和B细胞中发现了基因表达的改变.
- 康复的孕妇显示NK和CD8+T细胞中的细胞毒性和干扰素信号通路减弱.
结论:
- SARS-CoV-2 感染破坏了孕妇的适应性免疫反应,在康复后持续存在.
- 这些免疫失调可能会导致这种人群中持续的COVID-19后症状.
相关概念视频
01:25Immune Surveillance by NK Cells and Phagocytes
Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
01:27Cytomegalovirus Disease
Cytomegalovirus (CMV) disease is caused by human cytomegalovirus, a double-stranded DNA virus of the Herpesviridae family. While primary CMV infection is often asymptomatic in immunocompetent individuals, the virus can cause severe disease in neonates and immunocompromised patients. CMV is the most common cause of congenital viral infection in the United States, and a major pathogen in solid organ and hematopoietic stem cell transplant recipients.CMV is transmitted via bodily fluids, sexual...