CD2 antigen targeting reduces intragraft expression of mRNA-encoding granzyme B and IL-10 and induces tolerance Academic Article Article uri icon

Overview

MeSH Major

  • Cryopreservation
  • Kidney Diseases
  • Kidney Transplantation
  • Organ Preservation
  • Perfusion

abstract

  • We explored the hypothesis that CD2 antigen-specific therapy would reduce intragraft gene expression and facilitate the emergence of transplantation tolerance. This postulate was tested in a murine pancreatic islet cell allograft model in which a novel mAb directed at the CD2 antigen, RM2-2 anti-CD2 mAb (RM2-2 mAb), was used to regulate CD2 antigen-dependent antiallograft response. Peritransplant administration (day -1, 0, and day + 1 with respect to transplantation) of RM2-2 mAb resulted in significantly longer survival of DBA/2 pancreatic islet cell allografts in the B6AFl recipient compared with untreated recipients. RM2-2 mAb therapy facilitated the induction of antigen-specific tolerance: whereas retransplantation with the original donor strain (DBA/2) islet cell allograft was successful, retransplantation with a third-party donor (SJL) islet cell allograft was not. In vivo administration of RM2-2 mAb therapy resulted in a decrease in the percentage of T cells that coexpressed the CD2 antigen (demonstrated by two-color flow cytometry) and in a decrease in intragraft expression of cytotoxic cell specific granzyme B mRNA and IL-10 mRNA (detected by RT-PCR). Our data, in addition to demonstrating for the first time the efficacy of RM2-2 anti-CD2 mAb, suggest that CD2 antigen is a suitable target for the induction of transplantation tolerance.

publication date

  • July 27, 1996

Research

keywords

  • Academic Article

Identity

Digital Object Identifier (DOI)

  • 10.1097/00007890-199607270-00017

PubMed ID

  • 8755824

Additional Document Info

start page

  • 249

end page

  • 55

volume

  • 62

number

  • 2