Increased frequency of IgD-CD27hiCD38hi B cells and its association with the renal involvement in ANCA-associated vasculitis
- PMID: 35568913
- PMCID: PMC9107193
- DOI: 10.1186/s13075-022-02796-9
Increased frequency of IgD-CD27hiCD38hi B cells and its association with the renal involvement in ANCA-associated vasculitis
Abstract
Background: B cells have been highlighted in the pathogenesis of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) by the identification of activated B cells in granulomatous lesions and the efficacy of B cell depletion in treatment of AAV patients in the current study; we aimed to investigate the frequency of a specific B cell subset, IgD-CD27hiCD38hi B cells in AAV patients, and its association with the disease severity of AAV.
Methods: Blood samples of patients with AAV in active stage and in remission were collected. The frequency of IgD-CD27hiCD38hi B cells was detected by flow cytometry, and its correlation with clinicopathological parameters was analyzed.
Results: Our results showed a significant increase of circulating IgD-CD27hiCD38hi B cells in AAV patients in active stage compared with patients in remission and healthy donors, and the frequency of IgD-CD27hiCD38hi B cells correlated with the severity of renal involvement, including serum creatinine, estimated glomerular filtration rate, and percentages of total crescents in renal biopsies.
Conclusions: The results indicated that IgD-CD27hiCD38hi B cells could reflect disease severity of renal involvement in AAV.
Keywords: Antineutrophil cytoplasmic antibody; B cells; Renal involvement; Vasculitis.
© 2022. The Author(s).
Conflict of interest statement
The authors declare that they have no competing interests.
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