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Updated: Sep 11, 2025

Isolation of Murine Lymph Node Stromal Cells

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Published on: August 19, 2014

COVID-19 疫苗类型控制了淋巴结排水中的 stromal 重编程

Ruth Fair-Mäkelä^1,2, Pinja Thorén^2,3, Joni Näsiaho^2,3

¹Institute of Biomedicine, University of Turku, Turku, Finland.

Science immunology

|August 15, 2025

概括

不同的COVID-19疫苗差异地主导淋巴结 stromal 细胞. 使者RNA和腺病毒疫苗改变细胞功能,在抗原呈现细胞到达之前影响免疫反应.

科学领域:

免疫学免疫学免疫学
疫苗学疫苗学疫苗学
细胞生物学细胞生物学

背景情况:

淋巴结 (LN) stromal 细胞调节免疫反应.
SARS-CoV-2 疫苗对 LN stromal 细胞的影响尚不清楚.

研究的目的:

为了研究不同SARS-CoV-2疫苗如何影响LN stromal细胞.
了解疫苗接种后排水LNs内的早期免疫事件.

主要方法:

用mRNA和腺病毒SARS-CoV-2疫苗对小鼠进行免疫接种.
多模式生物成像和单细胞转录组学的排水LNs.
功能性测试评估抗原处理和免疫细胞迁移.

主要成果:

mRNA和腺病毒疫苗感染了特定的LN stromal细胞子集 (淋巴内皮细胞,纤维细胞网状细胞).
早期,疫苗特定的S蛋白生产发生在排水LNs.
接种疫苗诱导了 stromal 细胞的转录组变化,改变了抗原清理,化学激素梯度和埃索因菲尔迁移.

结论:

截然不同的SARS-CoV-2疫苗配方差异地主要是LN stromal细胞.
干细胞重编程影响在迁移型树突细胞到来之前的早期免疫微环境调节.

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