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Immunosuppressive effect on T cell activation by interleukin-16- and interleukin-10-cDNA-double-transfected human

Yoshitaka Matsumoto1, Tatsuya Fujita, Itaru Hirai

  • 1Division of Plastic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan. ymatsu@sapmed.ac.jp

Burns : Journal of the International Society for Burn Injuries
|October 28, 2008
PubMed

It is well known that induction of immunotolerance with allogeneic skin transplantation is generally difficult. This study attempted to find an immunosuppressive protocol for skin allograft rejection involving interleukin-16 (IL-16) and interleukin-10 (IL-10), because both are known to inhibit mixed lymphocyte reaction (MLR). The data indicated that IL-16 enhanced the immunosuppressive effect of IL-10. IL-16-cDNA- and IL-10-cDNA-double-transfected squamous cell carcinoma cell line were used as an in vitro model and they produced more than 20 ng/ml of IL-16 and 100 pg/ml of IL-10 in the supernatant, which significantly inhibited MLR and also the activation of allogeneic lymphocytes, which were stimulated directly by allogeneic double-cDNA-transfectant cells. Thus allogeneic skin graft producing IL-16 and IL-10 might have a local immunosuppressive action that could prolong graft survival.

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