Gökçe AM, Fındık H, Ata P, Gümrükçü G, Özel L, Gündoğdu K, Yazıcıoğlu B, Titiz MI. Relationship of Urothelial Gene Expressions in Urine-Deprived Bladders of Renal Recipients With Posttransplant Urinary Infections.
Transplant Proc 2016;
47:1331-5. [PMID:
26093712 DOI:
10.1016/j.transproceed.2015.04.080]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE
In this study, we analyzed gene expression levels of apoptotic (Fas, FasL, Bcl-2, Bax) and survival (CXCR1, CXCR2, IL-8) signal pathways of the urine-deprived bladder tissues and the relation of urinary tract infections with these pathways.
MATERIAL AND METHODS
We included 37 patients admitted for renal transplantation between December 2009 and December 2012. Bladder mucosal samples were obtained at the time of transplantation and 6-8 weeks posttransplantation, at the time of ureteral catheter removal. RNA extraction and cDNA synthesis were done using guanidium-thiocyanate and colon filter methods. Expression analysis was studied with quantitative real-time polymerase chain reaction optimized with ROX dye and internal control β-actin.
RESULTS
According to our findings Fas, FasL, Bcl-2, and Bax expression was higher in urine-deprived bladder samples than those in the posttransplant samples (P < .05). Although Fas, FasL, Bcl-2, and Bax expression levels increased in pretransplant samples, there was an increase in posttransplant bladder samples; however, this increase was not as marked as those of pretransplant samples. IL-8, CXCR1, and CXCR2 expression was decreased at the pretransplant samples and increased in posttransplant bladder samples.
CONCLUSIONS
We have found an upregulated apoptotic process and decreased survival signals at the urine-deprived bladder tissue. After transplantation, bladder tissue survival parameters were increased, demonstrating the importance of urinary flow for bladder tissue.
Collapse