title: Impact of interleukin-18 polymorphisms-607 and -137 on clinical characteristics of renal cell carcinoma patients.
abstract: Current evidence suggests that chronic inflammation is associated with tumor development and progression. Interleukin-18 (IL-18) plays a central role in inflammation and the immune response, contributing to the pathogenesis and pathophysiology of infectious and inflammatory diseases. The objective of this study was to determine whether the presence of IL-18 polymorphisms -137 G/C (rs187238) and -607 A/C (rs1946518) was associated with size, grade, TNM stage, and survival in patients with renal cell carcinoma (RCC). The study cohort included 158 patients with RCC. Control group consisted of 506 samples from Spanish population. The studied IL-18 gene polymorphisms did not influence susceptibility to RCC in the analyzed group of patients (IL-18-607, p = 0.318; IL-18-137 p = 0.740) but may contribute to disease onset and aggressiveness. IL-18-607 CC genotype was significantly associated with higher tumor size (p = 0.001), grade (p = 0.030), T (p = 0.001), M (p = 0.012), and stage (p = 0.002). IL-18-103 GG genotype was correlated with higher tumor size (p = 0.036), grade (p = 0.017), T (p = 0.026), and stage (p = 0.011). The Cox proportional hazard model showed that nuclear grade and stage grouping were independent prognostic factors but IL-18 polymorphism was not. Polymorphism variants in the IL-18 gene (IL-18-607 and IL-18-137) may be associated with a worse prognosis for RCC. High levels of IL-18 production may play a major role in the growth, invasion and metastasis of renal cancer.
authors: Servicio de Análisis Clínicos e Inmunología, Hospital Universitario Virgen de las, Nieves, Granada, Spain.
authors: Pablo
authors: P
authors: Sáenz-López
authors: Rafael
authors: R
authors: Carretero
authors: Fernando
authors: F
authors: Vazquez
authors: Javier
authors: J
authors: Martin
authors: Elena
authors: E
authors: Sánchez
authors: Miguel
authors: M
authors: Tallada
authors: Federico
authors: F
authors: Garrido
authors: José Manuel
authors: JM
authors: Cózar
authors: Francisco
authors: F
authors: Ruiz-Cabello
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002292:Carcinoma, Renal Cell / Q000175:diagnosis* / Q000453:epidemiology / Q000235:genetics* / Q000473:pathology / Q000503:physiopathology; D018450:Disease Progression; D005260:Female; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D006801:Humans; D020382:Interleukin-18 / Q000235:genetics*; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000235:genetics* / Q000473:pathology / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011110:Polymorphism, Genetic; D011379:Prognosis; D013030:Spain; D016019:Survival Analysis
chemical_list: D020382:Interleukin-18