Regulatory and Effector B Cells: A New Path Toward Biomarkers and Therapeutic Targets to Improve Transplant Outcomes?

Clin Lab Med. 2019 Mar;39(1):15-29. doi: 10.1016/j.cll.2018.10.011. Epub 2018 Dec 18.

Abstract

B cells shape the alloimmune response through polarized subsets. These cells inhibit or promote immune responses by expressing suppressive or proinflammatory cytokines. Their summed activity dictates the influence of B cells on the alloimmune response. We review the evidence for regulatory B cells and effector B cells in mice and humans, discuss current limitations in their phenotypic identification, and discuss regulatory B cells as a signature for clinical renal allograft tolerance and predictive markers for allograft outcomes. We discuss the effects of therapeutic agents on regulatory B cells and potential approaches to augment their numbers as a therapeutic tool.

Keywords: Biomarker; Effector B cells; Human; IL-10; Mouse; Regulatory B cells; TNF-α; Transplant tolerance.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • B-Lymphocyte Subsets / metabolism
  • B-Lymphocyte Subsets / physiology*
  • B-Lymphocytes, Regulatory / metabolism
  • B-Lymphocytes, Regulatory / physiology*
  • Biomarkers / metabolism
  • Humans
  • Mice
  • Transplantation Tolerance*
  • Treatment Outcome
  • Tumor Necrosis Factor-alpha / metabolism

Substances

  • Biomarkers
  • Tumor Necrosis Factor-alpha