Effects of combined genes of CTLA4Ig and IDO in post-liver transplantation immune tolerance of rats



Título del documento: Effects of combined genes of CTLA4Ig and IDO in post-liver transplantation immune tolerance of rats
Revista: Annals of hepatology
Base de datos: PERIÓDICA
Número de sistema: 000407198
ISSN: 1665-2681
Autores: 1
1
1
2
1
1
Instituciones: 1Chongqing Medical University, Second Affiliated Hospital, Chongquing, Sichuan. China
2Suining Central Hospital, Department of Hepatobiliary Surgery, Suining, Sichuan. China
Año:
Periodo: Sep-Oct
Volumen: 15
Número: 5
Paginación: 729-737
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés Previous studies showed that CTLA4Ig and indoleamine 2,3-dioxygenase (IDO) genes played regulatory role in organ transplantation but failed to reach satisfactory effects. In this study, we constructed an adenovirus-mediated gene expressing CTLA4Ig–IDO and established rat liver transplantation models. Recipients were randomly divided into four groups of 10 rats each. During the operation, CTLA4Ig, IDO, and CTLA4Ig–IDO genes, as well as a blank plasmid, were infused into different rat groups via portal vein to determine their effects on inducing immune tolerance. Survival rate of recipients, histological changes of graft liver, post-transplantation liver function, and cytokine levels were observed at day 14 after operation. Results. Results. Serum levels of alanine aminotransferase (ALT), aspartate transaminase (AST), and total bilirubin level (TBIL) in the CTLA4Ig-IDO group were lower than those in the other three groups at 14 days post-transplantation (P < 0.05); mRNA and protein expressions of IL-2 and IFN-γ were higher in the control group, but lower in the CTLA4Ig-IDO group (P < 0.05). By contrast, expressions of IL-4, TGF-b, IL-10, and T lymphocyte apoptosis were higher in the CTLA4Ig-IDO group than those in the other three groups (P < 0.05). The CTLA4Ig-IDO group exhibited mild acute rejection and higher survival rate compared with the other groups (P < 0.05). Conclu- Conclusion. Compared with using CTLA4Ig or IDO alone, combined transfection of CTLA4Ig-IDO was more effective in inducing immune tolerance after liver transplantation
Disciplinas: Medicina
Palabras clave: Gastroenterología,
Medicina experimental,
Inmunología,
Trasplante de hígado,
Tolerancia inmunológica,
Genes combinados,
Ratas
Keyword: Medicine,
Experimental medicine,
Gastroenterology,
Immunology,
Liver transplantation,
Immunological tolerance,
Combined genes,
Rats
Texto completo: Texto completo (Ver PDF)