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Pediatr Transplant. 2012 Dec;16(8):858-65. doi: 10.1111/j.1399-3046.2012.01781.x. Epub 2012 Aug 29.

Humoral immunity is involved in the development of pericentral fibrosis after pediatric live donor liver transplantation.

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1
Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan.

Abstract

Although LT can be successful for treating end-stage liver disease in children, some patients develop fibrosis around the central vein area (PCF). This raises the possibility that PCF could lead to later cirrhosis and graft failure. Here, we report a retrospective immunohistochemical study of 28 patients who received a live donor liver transplant. We assessed the incidence and etiology of PCF using CD3, CD20, HLA-DR, and C4d-specific antibodies. Histological evidence of PCF was found in 13 cases (46.4%), of which 11 (84.6%) had experienced ACR and/or CP events post-transplant. Immunohistochemical evaluation revealed significantly stronger staining with these antibodies in the central vein area in PCF, especially for CD20 and C4d. This implies humoral immunopathology and suggests involvement of humoral immunity in the development of PCF. These results further imply that suppression of cellular immunity alone is insufficient to prevent PCF. We therefore suggest that suppression of both humoral and cellular immunity in combination would be required for prevention of PCF.

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