B lymphocytes differentially influence acute and chronic allograft rejection in mice Academic Article uri icon


MeSH Major

  • B-Lymphocyte Subsets
  • Graft Rejection
  • Heart Transplantation
  • Kidney Transplantation
  • Skin Transplantation


  • The relative contributions of B lymphocytes and plasma cells during allograft rejection remain unclear. Therefore, the effects of B cell depletion on acute cardiac rejection, chronic renal rejection, and skin graft rejection were compared using CD20 or CD19 mAbs. Both CD20 and CD19 mAbs effectively depleted mature B cells, and CD19 mAb treatment depleted plasmablasts and some plasma cells. B cell depletion did not affect acute cardiac allograft rejection, although CD19 mAb treatment prevented allograft-specific IgG production. Strikingly, CD19 mAb treatment significantly reduced renal allograft rejection and abrogated allograft-specific IgG development, whereas CD20 mAb treatment did not. By contrast, B cell depletion exacerbated skin allograft rejection and augmented the proliferation of adoptively transferred alloantigen-specific CD4(+) T cells, demonstrating that B cells can also negatively regulate allograft rejection. Thereby, B cells can either positively or negatively regulate allograft rejection depending on the nature of the allograft and the intensity of the rejection response. Moreover, CD19 mAb may represent a new approach for depleting both B cells and plasma cells to concomitantly impair T cell activation, inhibit the generation of new allograft-specific Abs, or reduce preexisting allograft-specific Ab levels in transplant patients.

publication date

  • February 15, 2011



  • Academic Article



  • eng

PubMed Central ID

  • PMC3734565

Digital Object Identifier (DOI)

  • 10.4049/jimmunol.1002983

PubMed ID

  • 21248259

Additional Document Info

start page

  • 2643

end page

  • 54


  • 186


  • 4