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Comparison of transcriptional profiles of CD62L+ and CD62L- subsets of in vivo primed CD44hiCD4+ T cells by exposure to ovalbumin plus papain

ABSTRACT: Memory type 2 CD4+ T helper (Th2) cells play critical roles in allergic asthma, but their generation and maintenance remain poorly understood. Specially, roles of conventional dendritic cells (cDCs), including CD11b+CD103- cDC2s and CD11b-CD103+ cDC1s, in this process are still undefined. Here, we report that fate decision of memory Th2 cells was dictated by cDC subsets at priming stage. To be specific, temporary depletion of CD103+ cDC1s during priming promoted the generation of allergen-specific circulating memory Th2 cells in exposure to ovalbumin plus papain, suggesting that precursors of memory Th2 cells emerged at priming stage. Subsequent data revealed that activated CD44hiCD62L+CD4+ T cells, which were elevated by cDC1 depletion during priming, exhibited memory-precursor-like transcriptional and functional properties. Taken together, CD103+ cDC1s reduced number of CD62L+ memory precursors, and thus restrained generation of memory Th2 cells.

ORGANISM(S): Mus musculus

PROVIDER: GSE192711 | GEO | 2024/12/27

REPOSITORIES: GEO

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