Journal
FRONTIERS IN IMMUNOLOGY
Volume 11, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fimmu.2020.627496
Keywords
Breg phenotyping; kidney transplantation; antibody-mediated rejection; homeostasis; dynamic
Categories
Funding
- National Natural Science Foundation of China [82070771]
- Foundation of Henan Provincial Health Bureau [SBGJ2018022]
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Circulating IL-10(+) Breg levels are a more appropriate indicator for assessing resistance to AMR after kidney transplantation compared to Bregs. Kidney B cell and IL-10 infiltration, as well as high expression of CXCL13, were associated with AMR. Furthermore, circulating IL-10(+) Bregs remained elevated during the 90-day post-operation period, contributing to immune homeostasis.
Background Antibody-mediated rejection (AMR) occupies a major position for chronic rejection after kidney transplantation. Regulatory B cell (Breg) has been reported to have an inhibitory immune function, which contributes to the resistance for AMR. Methods A nested case-control study for nine healthy donors, 25 stable (ST) patients, and 18 AMR patients was performed to determine the type of Breg in maintaining immune tolerance and preventing AMR. Results Compared to the ST group, circulating interleukin (IL)-10(+) Bregs, but not Bregs, significantly decreased. The receiver operating characteristic (ROC) curve analysis revealed that rather than the circulating Bregs, decreased circulating IL-10(+) Breg levels were positively associated with AMR. However, kidney B cell and IL-10 infiltration was significantly increased in the AMR group with high expression of C-X-C motif chemokine 13 (CXCL13). In addition, circulating IL-10(+) Bregs, rather than Bregs, remained higher than those at pre-operation, during the 90-day post-operation in immune homeostasis. Conclusion The circulating IL-10(+) Breg levels are more appropriate measures for assessing the resistance of AMR after kidney transplantation.
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