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Expression Patterns of Toll Like Receptor (Tlr)-2, Tlr-4 and Myeloid Differentiation Primary Response Gene 88 (Myd88) in Renal Transplant Patients Developing Allograft Dysfunction; a Cohort Study Publisher Pubmed



Hosseinzadeh M1 ; Ahmadpoor P2 ; Yekaninejad MS3 ; Pourrezagholi F2 ; Foroughi F4 ; Ghorbanpour M3 ; Barabadi M5 ; Shahbaz SK5 ; Solgi G6 ; Amirzargar A5, 7
Authors
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Authors Affiliations
  1. 1. Department of Immunology, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran
  2. 2. Department of Nephrology, Shahid Labbafinejad Medical Center, Chronic Kidney Disease Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  3. 3. Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Immunology, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
  5. 5. Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Department of Immunology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
  7. 7. Molecular immunology research center, Tehran university of medical sciences, Tehran, Iran

Source: Transplant Immunology Published:2018


Abstract

This cohort intends to determine the sequential dynamic changes in Toll-like receptor (TLR)-4, TLR-2, and myeloid differentiation primary response gene 88 (MYD88) mRNA expressions in PBMCs and biopsy samples from kidney allograft recipients in relation to graft function. This study enrolled 52 renal transplant patients, 27 with well functioning graft (WFG) and 25 graft dysfunction (GD). Peripheral blood samples pre- and post-transplantation (days 2, 90 and 180) were collected to analyze mRNA expression levels of TLR-2, TLR-4, and MYD88 genes in relation to allograft function during one-year follow up. The mean dynamic changes of post-transplant TLR-2, TLR-4, and MYD88 mRNA expressions were significantly higher in GD compared to WFG patients (P =.001). ROC curve analysis based on glomerular filtration rate (GFR) index showed the area under curve (AUC) values for the genes: TLR-2(0.89;P <.001), TLR-4(0.86;P <.001), and MYD88(0.75;P =.003) in the third month post-transplantation for GD diagnosis. The calculated AUCs for the expressions of genes in allograft biopsies were 0.94(TLR-2), 0.95(TLR-4), and 0.98(MYD88) in the sixth month post-transplant based on pathology report (P <.001). Our results indicate that sequential monitoring of the expression patterns of TLR-2, TLR-4, and MYD88 in PBMCs and biopsy samples could be considered as predictive biomarkers for early and late kidney allograft function. © 2018