期刊
IMMUNITY INFLAMMATION AND DISEASE
卷 9, 期 4, 页码 1479-1488出版社
WILEY
DOI: 10.1002/iid3.499
关键词
cancer; cell migration; liver; hepatocytes
类别
资金
- Deutsche Forschungsgemeinschaft
Chronic kidney disease (CKD) is a common condition that increases mortality and the risk of cardiovascular and other morbidities regardless of underlying renal condition. Chronic inflammation promotes renal fibrosis, and B cells play an important role in various etiologies of CKD. Research shows that long-term B cell depletion can significantly improve renal excretory function, but this improvement is a longer process, requiring further study of the kinetics and mechanisms of renal B cell aggregation.
Background Chronic kidney disease (CKD) is a common condition that increases mortality and the risk of cardiovascular and other morbidities regardless of underlying renal condition. Chronic inflammation promotes renal fibrosis. Recently, renal B cell infiltrates were described in chronic kidney disease of various etiologies beyond autoimmunity. Methods We here investigated B cells and indicators of tertiary lymphoid structure formation in human renal biopsies. Renal function was studied during long-term B cell depletion in human patients with membranous nephropathy and with CKD of unknown origin. Results Cytokine profiles of tertiary lymphoid structure formation were detected in human renal interstitium in a range of kidney diseases. Complex B cell structures consistent with tertiary lymphoid organ formation were evident in human membranous nephropathy. Here, B cell density did not significantly associate with proteinuria severity, but with worse excretory renal function. Proteinuria responses mostly occurred within the first 6 months of B cell depletion. In contrast, recovery of excretory kidney function was observed only after 18 months of continuous therapy, consistent with a structural process. Renal tertiary lymphatic structures were also detected in the absence of autoimmune kidney disease. To start to address whether B cell depletion may affect CKD in a broader population, we assessed kidney function in neurologic patients with CKD of unknown origin. In this cohort, eGFR significantly increased within 24 months of B cell depletion. Conclusion Long-term B cell depletion associated with significant improvement of excretory kidney function in human CKD. Kinetics and mechanisms of renal B cell aggregation should be investigated further to stratify the impact of B cells and their aggregates as therapeutic targets.
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