TISSUE TRANSGLUTAMINASE: A MEDIATOR AND PREDICTOR OF CHRONIC ALLOGRAFT NEPHROPATHY?

Autor: Samantha Bex, C B Brown, James Skill, Hamdy Abo-Zenah, Graham Wild, Martin Griffin, A. Meguid El Nahas, Timothy S. Johnson
Rok vydání: 2004
Předmět:
Zdroj: Transplantation. 77:1667-1675
ISSN: 0041-1337
Popis: Background. The precise mechanisms underlying the development of chronic allograft nephropathy (CAN) and the associated renal fibrosis remain uncertain. The protein-crosslinking enzyme, tissue transglutaminase (tTg), has recently been implicated in renal fibrosis. Methods. We investigated the involvement of tTg and its crosslink product, [epsilon]-([gamma]-glutamyl) lysine, in 23 human kidney allografts during the early posttransplantation period and related these to changes of CAN that developed in 8 of them. Sequential biopsies were investigated using immunohistochemical, immunofluorescence, and in situ enzyme activity techniques. Results. From implantation, tTg (+266%) and [epsilon]-([gamma]-glutamyl) lysine crosslink (+256.3%) staining increased significantly (P
Databáze: OpenAIRE