{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T03:56:52Z","timestamp":1791172612639,"version":"4.1.0"},"reference-count":47,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2004,12,21]],"date-time":"2004-12-21T00:00:00Z","timestamp":1103587200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2004,12,21]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>Wiskott\u2013Aldrich syndrome (WAS) is an X-linked immunodeficiency\/platelet disease due to mutations of WASP, a cytoskeletal regulatory protein of blood cells. Patients exhibit a range of immune defects generally attributed to defective T-cell function, including poor response to immunization, skewed immunoglobulin isotypes, eczema, recurrent infections, autoimmune disease and increased frequency of malignancies. Here we show a deficit of total B-cells in WAS patients of various ages and identify phenotypic perturbations involving complement receptors and CD27. Whereas B-cells of normal healthy donors are overwhelmingly CD21\/CD35-positive, B-cells expressing these receptors are significantly reduced in number in WAS patients, and their paucity may cause suboptimal antigen capture and presentation. The frequencies of IgD\u2013 and IgG+ patient B-cells were not different from healthy donors (although absolute numbers were decreased), indicating that isotype switching is occurring. In contrast, the frequency of cells positive for CD27, the marker of post germinal centre B-cells, was significantly decreased even among isotype-switched cells, and B-cells resembling germinal centre progenitors (CD10+CD27\u2013CD38bright) were more frequent in adult patients, suggesting impaired germinal centre maturation\/differentiation. The documentation of these phenotypic perturbations and deficit of total cells suggest that defects intrinsic to B-cells contribute to the impaired humoral immunity that characterizes this disease.<\/jats:p>","DOI":"10.1111\/j.1365-2249.2005.02693.x","type":"journal-article","created":{"date-parts":[[2005,1,17]],"date-time":"2005-01-17T12:11:15Z","timestamp":1105963875000},"page":"297-305","source":"Crossref","is-referenced-by-count":54,"title":["Phenotypic perturbation of B cells in the Wiskott\u2013Aldrich syndrome"],"prefix":"10.1093","volume":"139","author":[{"given":"J Y","family":"Park","sequence":"first","affiliation":[{"name":"The CBR Institute for Biomedical Research"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Shcherbina","sequence":"additional","affiliation":[{"name":"The CBR Institute for Biomedical Research"},{"name":"Research Institute for Paediatric Haematology, Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F S","family":"Rosen","sequence":"additional","affiliation":[{"name":"The CBR Institute for Biomedical Research"},{"name":"Department of Pediatrics, Harvard Medical School, Boston, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A P","family":"Prodeus","sequence":"additional","affiliation":[{"name":"Research Institute for Paediatric Haematology, Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"E","family":"Remold-O\u2019Donnell","sequence":"additional","affiliation":[{"name":"The CBR Institute for Biomedical Research"},{"name":"Department of Pediatrics, Harvard Medical School, Boston, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2005,1,10]]},"reference":[{"key":"2022010900431829400_b1","first-page":"212","article-title":"Familiarer, angeobren Morbus 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