Transinteractome analysis reveals distinct niche requirements for isotype‐based plasma cell subsets in the bone marrow - Sorbonne Université Access content directly
Journal Articles European Journal of Immunology Year : 2023

Transinteractome analysis reveals distinct niche requirements for isotype‐based plasma cell subsets in the bone marrow

Abstract

Bone marrow (BM) long-lived plasma cells (PCs) are essential for long-term protection against infection, and their persistence within this organ relies on interactions with Cxcl12-expressing stromal cells that are still not clearly identified. Here, using single cell RNAseq and in silico transinteractome analyses, we identified Leptin receptor positive (LepR +) mesenchymal cells as the stromal cell subset most likely to interact with PCs within the BM. Moreover, we demonstrated that depending on the isotype they express, PCs may use different sets of integrins and adhesion molecules to interact with these stromal cells. Altogether, our results constitute an unprecedented characterization of PC subset stromal niches and open new avenues for the specific targeting of BM PCs based on their isotype.
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Dates and versions

hal-04145276 , version 1 (29-06-2023)

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Amélie Bonaud, Pierre Larraufie, Mélanie Khamyath, Ugo Szachnowski, Shaun M Flint, et al.. Transinteractome analysis reveals distinct niche requirements for isotype‐based plasma cell subsets in the bone marrow. European Journal of Immunology, 2023, ⟨10.1002/eji.202250334⟩. ⟨hal-04145276⟩
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