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Induction of immune tolerance by pre-infusion of apoptotic lymphocytes derived from peripheral blood of donor rats before liver transplantation. 2013

J F Feng, and F Chen, and H Liu, and J Liu
Department of Oncological Surgery, Zhejiang Cancer Hospital, Hangzhou, China. Jifzhejiang@gmail.com

OBJECTIVE Acute rejection after liver transplantation is usually treated with large doses of immunosuppressants with severe toxic and side-effects, so it is imperative to find an effective method for preventing acute rejection. The aim of this study was to investigate the effects of immune tolerance by pre-infusion of apoptotic lymphocytes derived from peripheral blood of donor rats before liver transplantation. METHODS By using male Wistar and Sprague-Dawley (SD) rats as liver donors and recipients, an orthotopic liver transplantation model was established. The rats were divided into Group A (control group) and Group B (apoptotic lymphocytes pre-infusion group). In group B, 1ml apoptotic lymphocytes suspension (concentration 5×107 cells/mL) which were irradiated by X-ray from electron linear accelerator at the absorbed dose of 2.0Gy was pre-infused via the deep dorsal vein of penis on the 7th day before operation. The serum alanine transaminase (ALT), total bilirubin (TBIL), the serum of interleukin (IL) including IL-2, IL-4 and IL-10, liver pathological changes, and survival time were analysed. RESULTS The survival in Group A were 7~13d, with the median survival time (MST) of 11d, and in Group B were 37~60 d, with the MST of 60 d. There were significant differences between the two groups in survival (P <0.001). There were significant differences between the two groups in ALT (P <0.01) and TBIL (P <0.01). Microscopic inspection revealed that severe acute rejection in the Group A, but no sign of acute rejection was observed in the Group B in the 7th day postoperation. The levels of IL-2 were increased after operation in two groups, but was obviously increased in the 7th (P <0.01) and 10th (P <0.001) day postoperation in Group A. The levels of IL-4 and IL-10 in Group A were declined but were increased in the 7th (P <0.01) and 10th (P <0.001) day postoperation in Group B. CONCLUSIONS Preinfusion of apoptotic lymphocytes derived from peripheral blood of donor rats can induce immune tolerance in liver transplantation. Increased expression of Th2 cytokines (IL-4 and IL-10) may plays an important role in inducing immune tolerance.

UI MeSH Term Description Entries
D007108 Immune Tolerance The specific failure of a normally responsive individual to make an immune response to a known antigen. It results from previous contact with the antigen by an immunologically immature individual (fetus or neonate) or by an adult exposed to extreme high-dose or low-dose antigen, or by exposure to radiation, antimetabolites, antilymphocytic serum, etc. Immunosuppression (Physiology),Immunosuppressions (Physiology),Tolerance, Immune
D007165 Immunosuppression Therapy Deliberate prevention or diminution of the host's immune response. It may be nonspecific as in the administration of immunosuppressive agents (drugs or radiation) or by lymphocyte depletion or may be specific as in desensitization or the simultaneous administration of antigen and immunosuppressive drugs. Antirejection Therapy,Immunosuppression,Immunosuppressive Therapy,Anti-Rejection Therapy,Therapy, Anti-Rejection,Therapy, Antirejection,Anti Rejection Therapy,Anti-Rejection Therapies,Antirejection Therapies,Immunosuppression Therapies,Immunosuppressions,Immunosuppressive Therapies,Therapies, Immunosuppression,Therapies, Immunosuppressive,Therapy, Immunosuppression,Therapy, Immunosuppressive
D007262 Infusions, Intravenous The long-term (minutes to hours) administration of a fluid into the vein through venipuncture, either by letting the fluid flow by gravity or by pumping it. Drip Infusions,Intravenous Drip,Intravenous Infusions,Drip Infusion,Drip, Intravenous,Infusion, Drip,Infusion, Intravenous,Infusions, Drip,Intravenous Infusion
D007378 Interleukins Soluble factors which stimulate growth-related activities of leukocytes as well as other cell types. They enhance cell proliferation and differentiation, DNA synthesis, secretion of other biologically active molecules and responses to immune and inflammatory stimuli. Interleukin
D008214 Lymphocytes White blood cells formed in the body's lymphoid tissue. The nucleus is round or ovoid with coarse, irregularly clumped chromatin while the cytoplasm is typically pale blue with azurophilic (if any) granules. Most lymphocytes can be classified as either T or B (with subpopulations of each), or NATURAL KILLER CELLS. Lymphoid Cells,Cell, Lymphoid,Cells, Lymphoid,Lymphocyte,Lymphoid Cell
D008297 Male Males
D011300 Preoperative Care Care given during the period prior to undergoing surgery when psychological and physical preparations are made according to the special needs of the individual patient. This period spans the time between admission to the hospital to the time the surgery begins. (From Dictionary of Health Services Management, 2d ed) Care, Preoperative,Preoperative Procedure,Preoperative Procedures,Procedure, Preoperative,Procedures, Preoperative
D006084 Graft Rejection An immune response with both cellular and humoral components, directed against an allogeneic transplant, whose tissue antigens are not compatible with those of the recipient. Transplant Rejection,Rejection, Transplant,Transplantation Rejection,Graft Rejections,Rejection, Graft,Rejection, Transplantation,Rejections, Graft,Rejections, Transplant,Rejections, Transplantation,Transplant Rejections,Transplantation Rejections
D000410 Alanine Transaminase An enzyme that catalyzes the conversion of L-alanine and 2-oxoglutarate to pyruvate and L-glutamate. (From Enzyme Nomenclature, 1992) EC 2.6.1.2. Alanine Aminotransferase,Glutamic-Pyruvic Transaminase,SGPT,Alanine-2-Oxoglutarate Aminotransferase,Glutamic-Alanine Transaminase,Alanine 2 Oxoglutarate Aminotransferase,Aminotransferase, Alanine,Aminotransferase, Alanine-2-Oxoglutarate,Glutamic Alanine Transaminase,Glutamic Pyruvic Transaminase,Transaminase, Alanine,Transaminase, Glutamic-Alanine,Transaminase, Glutamic-Pyruvic
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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