CD151识别了在COVID-19患者中富含的NK细胞子集,与疾病严重程度相关
Ainhoa Amarilla-Irusta1, Olatz Zenarruzabeitia2, Arrate Sevilla1
1Immunopathology Group, Biobizkaia Health Research Institute, Barakaldo, Spain.
The Journal of infection
|October 7, 2024
概括
严重的COVID-19会改变自然杀手 (NK) 细胞,增加与疾病严重程度相关的特定CD151+子集. 这些NK细胞表现出激活和组织居住标记物,这表明它们在COVID-19病变发生过程中起着关键作用.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 细胞生物学 细胞生物学
背景情况:
- 严重的COVID-19涉及免疫失调和自然杀手 (NK) 细胞功能受损.
- NK细胞对于抗病毒防御至关重要,但在急性SARS-CoV-2感染期间会发生变化.
研究的目的:
- 研究COVID-19患者NK细胞的表型和功能.
- 分析与疾病严重程度相关的血细胞因子水平和NK细胞子集.
主要方法:
- 用多参数流细胞计分析NK细胞标记物.
- 在COVID-19患者中测量了IL-15,TGF-β,PlGF和GDF-15的血水平.
- 基于表面标记物表达的NK细胞子集的特征.
主要成果:
- 严重的COVID-19患者显示IL-15,PLGF和GDF-15的血水平升高.
- 在严重病例中观察到CD151+NK细胞的丰富,与IL-15水平相关.
- CD151+ NK细胞表现出一个激活的表型 (HLA-DR,CD38,大酶B) 和表达的组织内标记物 (CD103,CD9).
结论:
- 在严重的COVID-19中,CD151+NK细胞,特别是CD151brightCD9+子集,会扩大.
- 这些发现表明CD151+NK细胞在COVID-19免疫病原发生过程中起着重要作用.
相关概念视频
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