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Título: | Plasma cells are not restricted to the CD27+ phenotype: characterization of CD27-CD43+ antibody-secreting cells |
Autor: | Covens, Kris; Verbinnen, Bert; Jong, B. G. de; Moens, Leen; Wuyts, Greet; Verheyen, Geert; Nys, Kris; Cremer, Jonathan; Smulders, Stijn; Schrijvers, Rik; Weinhäusel, Andreas; Vermeire, Séverine; Verschueren, Patrick; Langhe, Ellen De; Dongen, J. J. M. van; Zelm, Menno C. van; Bossuyt, Xavier | Palabras clave: | Antibody secreting cells CD43 CD27 Plasmablast Somatic hypermutation B lymphocyte |
Fecha de publicación: | 10-jul-2023 | Editor: | Frontiers Media | Citación: | Frontiers in Immunology 14: 1165936 (2023) | Resumen: | Circulating antibody-secreting cells are present in the peripheral blood of healthy individuals reflecting the continued activity of the humoral immune system. Antibody-secreting cells typically express CD27. Here we describe and characterize a small population of antibody-secreting class switched CD19+CD43+ B cells that lack expression of CD27 in the peripheral blood of healthy subjects. In this study, we characterized CD27-CD43+ cells. We demonstrate that class-switched CD27-CD43+ B cells possess characteristics of conventional plasmablasts as they spontaneously secrete antibodies, are morphologically similar to antibody-secreting cells, show downregulation of B cell differentiation markers, and have a gene expression profile related to conventional plasmablasts. Despite these similarities, we observed differences in IgA and IgG subclass distribution, expression of homing markers, replication history, frequency of somatic hypermutation, immunoglobulin repertoire, gene expression related to Toll-like receptors, cytokines, and cytokine receptors, and antibody response to vaccination. Their frequency is altered in immune-mediated disorders. | Versión del editor: | https://doi.org/10.3389/fimmu.2023.1165936 | URI: | http://hdl.handle.net/10261/352510 | E-ISSN: | 1664-3224 |
Aparece en las colecciones: | (IBMCC) Artículos |
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