期刊
NATURE REVIEWS DRUG DISCOVERY
卷 20, 期 3, 页码 179-199出版社
NATURE PORTFOLIO
DOI: 10.1038/s41573-020-00092-2
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资金
- MS Society of Canada [3194]
B cells have been found to actively participate in autoimmune diseases, leading to the clinical success of B cell depletion therapies like those targeting CD20, CD19, and BAFF. Despite limited impact on antibody levels and plasma cells in controlling the disease, research on B cells is constantly evolving and developing.
In the past 15 years, B cells have been rediscovered to be not merely bystanders but rather active participants in autoimmune aetiology. This has been fuelled in part by the clinical success of B cell depletion therapies (BCDTs). Originally conceived as a method of eliminating cancerous B cells, BCDTs such as those targeting CD20, CD19 and BAFF are now used to treat autoimmune diseases, including systemic lupus erythematosus and multiple sclerosis. The use of BCDTs in autoimmune disease has led to some surprises. For example, although antibody-secreting plasma cells are thought to have a negative pathogenic role in autoimmune disease, BCDT, even when it controls the disease, has limited impact on these cells and on antibody levels. In this Review, we update our understanding of B cell biology, review the results of clinical trials using BCDT in autoimmune indications, discuss hypotheses for the mechanism of action of BCDT and speculate on evolving strategies for targeting B cells beyond depletion.
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