Immunosuppressive protocol with delayed use of low-dose tacrolimus after aortic transplantation suppresses donor-specific anti-MHC class I and class II antibody production in rats
Language English Country United States Media electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
24815872
DOI
10.12659/aot.889870
PII: 889870
Knihovny.cz E-resources
- MeSH
- Aorta transplantation MeSH
- B-Lymphocytes immunology MeSH
- CD8-Positive T-Lymphocytes immunology MeSH
- Histocompatibility Antigens Class I immunology MeSH
- Histocompatibility Antigens Class II immunology MeSH
- Transplantation, Homologous MeSH
- Immunosuppressive Agents pharmacology MeSH
- Isoantibodies immunology MeSH
- Rats MeSH
- Rats, Inbred BN MeSH
- Rats, Inbred Lew MeSH
- Graft Rejection drug therapy immunology MeSH
- Spleen cytology immunology MeSH
- Tacrolimus pharmacology MeSH
- Vascular Grafting methods MeSH
- Dose-Response Relationship, Drug MeSH
- Animals MeSH
- Check Tag
- Rats MeSH
- Male MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Histocompatibility Antigens Class I MeSH
- Histocompatibility Antigens Class II MeSH
- Immunosuppressive Agents MeSH
- Isoantibodies MeSH
- Tacrolimus MeSH
BACKGROUND: Arterial allografts are used as vascular conduits in the treatment of prosthetic graft infection. Immunosuppression decreases their rupture risk rate. However, immunosuppression can be unprofitable in florid infection. Previously, we confirmed inhibition of cell-mediated destruction of rat aortic grafts by delayed use of tacrolimus. In this work, we studied the influence of this protocol on the antibody-mediated rejection. MATERIAL AND METHODS: Flow cytometry was used for the retrospective analysis of day 0, 14, and 30 sera obtained from Lewis rat recipients of isogeneic fresh infrarenal aortic grafts (group A) or Brown-Norway rat aortic grafts (group B,C,D) for the presence of donor-specific anti-MHC class I and II antibodies. Tacrolimus in daily dose of 0.2 mg/kg was administered from day 1 to day 30 (group C) or from day 7 to day 30 (group D). RESULTS: Inhibition of fluorescence-labeled anti-BN MHC class I and MHC class II antibodies binding to BN-splenocytes was observed only by day 14 and day 30 sera of allogeneic non-immunosuppressed Lewis rats (group B). The day 30 sera significantly decreased anti-MHC I (42±3%) and anti-MHC II antibody binding (56±3%) compared to day 0 (76±9%, p=0.005 and 79±5%, p=0.003, respectively). Deposition of immunoglobulins G into the tunica media was observed only in non-immunosuppressed aortic allografts on day 30. CONCLUSIONS: Fresh aortic allografts induce donor-specific anti-MHC class I and anti-MHC class II antibody production. Delayed administration of tacrolimus completely suppressed antibody production and antibody-mediated destruction of aortic allografts.
References provided by Crossref.org
Immunosuppressive protocols with tacrolimus after cryopreserved aortal allotransplantation in rats
