Article ; Online: B cells in systemic lupus erythematosus.
Current opinion in rheumatology
2021 Volume 34, Issue 2, Page(s) 125–132
Abstract: Purpose of review: New insight into altered B cell distribution including newly identified subsets and abnormalities in systemic lupus erythematosus (SLE) as well as their role in immune protection are summarized in this review.: Recent findings: SLE ...
Abstract | Purpose of review: New insight into altered B cell distribution including newly identified subsets and abnormalities in systemic lupus erythematosus (SLE) as well as their role in immune protection are summarized in this review. Recent findings: SLE carries characteristic B cell abnormalities, which offer new insights into B cell differentiation and their disturbances including discoveries of pathogenic B cell subsets and intrinsic B cell abnormalities. A recent study in SLE found that antigen-experienced B cell subsets lacking expression of CD27 and IgD defined by their lack of CXCR5 and CD19low expression are expanded in SLE and represent plasmablasts likely escaping proper selection. In terms of therapeutic targeting with broader coverage than rituximab, second-generation anti-CD20, anti-CD38 and CD19-CART treatment experiences have advanced our understanding recently. However, the key role of qualitative and quantitative B cell requirements in connection with T cells became apparent during SARS-Cov2 infection and vaccination, especially in patients with gradual B cell impairments by rituximab, mycophenolate mofetil and cyclophosphamide. Summary: Identification and characterization relevant B cell subsets together with altered regulatory mechanisms in SLE facilitates new approaches in targeting pathogenic B cells but require consideration of preservation of protection. |
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MeSH term(s) | B-Lymphocytes ; COVID-19 ; Humans ; Lupus Erythematosus, Systemic ; RNA, Viral ; SARS-CoV-2 |
Chemical Substances | RNA, Viral |
Language | English |
Publishing date | 2021-12-23 |
Publishing country | United States |
Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Review |
ZDB-ID | 1045317-9 |
ISSN | 1531-6963 ; 1040-8711 |
ISSN (online) | 1531-6963 |
ISSN | 1040-8711 |
DOI | 10.1097/BOR.0000000000000865 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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