PMID: 19923053Nov 20, 2009Paper

Effect of cytotoxin interleukin-2-pseudomonas exotoxin 66 on corneal allograft rejection in mice

Nan fang yi ke da xue xue bao = Journal of Southern Medical University
Jing Wu, Jian Yu

Abstract

To study the immunosuppressive effect of the interleukin-2-pseudomonas exotoxin 66(IL-2-PE66) on murine corneal allograft rejection. Thirty-six recipient female BALB/c mice received corneal allografts from C57BL/6 mice and were divided randomly into treatment and control groups. The condition of the grafts was observed twice a week. On days 10, 15, 25 and 35 after the transplantation, the operated eyes were removed for pathological examinations. Peripheral blood samples were also collected for analysis of T cell subsets and T lymphocyte colony forming unit (T-CFU) assay. The survival time of corneal allograft averaged 15.8-/+2.1 days in the control group and 31.2-/+2.9 days in the treatment group. The CD(4)(+)/ CD(8)(+)/ of the T cell subsets 15 days after the operation was 1.26-/+0.23 in the treatment group and 2.01-/+0.23 in the control group, with T-CFU of 201-/+18.2 and 286-/+16.8, respectively. IL-2-PE66 can delay the development of corneal graft rejection, significantly reduce the percentage of T helper cells, and weaken the aggregation of the peripheral T cells.

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