Plasma cell heterogeneity is driven by type of immune challenge
Khamyath, M.; Lereclus, E.; Gourhand, V.; Debureaux, P.-E.; Moulin, C.; Gary, H.; Bachelerie, F.; Balabanian, K.; Espeli, M.; Bonaud, A.
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Plasma cells play an essential role in humoral immunity, but many questions remain regarding the heterogeneity of this population, both in terms of ontogeny and involvement in the immune response. In this work, we have identified 5 subsets of plasma cells in human and mouse lymphoid tissues. These subpopulations were distinguished by differential expression of CD62L, CXCR4, Fc{gamma}RIIb and CD93. The antigenic context as well as the B cell of origin directed plasma cell differentiation towards specific subtypes that display distinct migratory and survival abilities in vivo. Altogether, ours results unveil that plasma cell phenotypic and functional heterogeneity relies on intrinsic imprinting during B cell activation.
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