A Paradigm Shift on the Question of B Cells in Transplantation? Recent Insights on Regulating the Alloresponse.


Journal Article (Review)

B lymphocytes contribute to acute and chronic allograft rejection through their production of donor-specific antibodies (DSAs). In addition, B cells present allopeptides bound to self-MHC class II molecules and provide costimulation signals to T cells, which are essential to their activation and differentiation into memory T cells. On the other hand, both in laboratory rodents and patients, the concept of effector T cell regulation by B cells is gaining traction in the field of transplantation. Specifically, clinical trials using anti-CD20 monoclonal antibodies to deplete B cells and reverse DSA had a deleterious effect on rates of acute cellular rejection; a peculiar finding that calls into question a central paradigm in transplantation. Additional work in humans has characterized IL-10-producing B cells (IgM memory and transitional B cells), which suppress the proliferation and inflammatory cytokine productions of effector T cells in vitro. Understanding the mechanisms of regulating the alloresponse is critical if we are to achieve operational tolerance across transplantation. This review will focus on recent evidence in murine and human transplantation with respect to non-traditional roles for B cells in determining clinical outcomes.

Full Text

Duke Authors

Cited Authors

  • Firl, DJ; Benichou, G; Kim, JI; Yeh, H

Published Date

  • January 2017

Published In

Volume / Issue

  • 8 /

Start / End Page

  • 80 -

PubMed ID

  • 28210263

Pubmed Central ID

  • 28210263

Electronic International Standard Serial Number (EISSN)

  • 1664-3224

International Standard Serial Number (ISSN)

  • 1664-3224

Digital Object Identifier (DOI)

  • 10.3389/fimmu.2017.00080


  • eng