Journal article

PDCD1 and IFNL4 genetic variants and risk of developing hepatitis C virus-related diseases

Valli De Re, Maria Lina Tornesello, Mariangela De Zorzi, Laura Caggiari, Francesca Pezzuto, Patrizia Leone, Vito Racanelli, Gianfranco Lauletta, Stefania Zanussi, Ombretta Repetto, Laura Gragnani, Francesca Maria Rossi, Riccardo Dolcetti, Anna Linda Zignego, Franco M Buonaguro, Agostino Steffan



BACKGROUND: Genetic variants of IFNL4 and PDCD1 genes have been shown to influence the spontaneous clearance of hepatitis C virus (HCV) infection. We investigated the IFNL4 rs12979860 and the PDCD1 polymorphisms in 734 HCV-positive patients, including 461 cases with liver disease of varying severity and 273 patients with lymphoproliferative disorders to determine the association of these genes with patient's outcome. METHODS: Expression levels of PDCD1 mRNA encoded by haplotypes were investigated by quantitative PCR in hepatocellular carcinoma (HCC) tissue and peripheral blood mononuclear cells. Flow cytometry was used to detect PD-1 and its ligand PD-L1. RESULTS: The frequency of IFNL4 rs12..

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