Saudi Journal of Gastroenterology
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Year : 2014  |  Volume : 20  |  Issue : 1  |  Page : 59-65

Overexpression of cyclooxygenase-2 and transforming growth factor-beta 1 is an independent predictor of poor virological response to interferon therapy in chronic HCV genotype 4 patients

1 Department of Pathology, Faculty of Internal Medicine, Minia University, El-Minia, Egypt; Department of Pathology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
2 Department of Pharmacology, Faculty of Internal Medicine, Minia University, El-Minia, Egypt
3 Department of Internal Medicine, Faculty of Internal Medicine, Minia University, El-Minia, Egypt

Correspondence Address:
Wafaey M Gomaa
Department of Pathology, Faculty of Medicine, Minia University (61519), El Minia, Egypt

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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1319-3767.126324

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Background/Aims: COX-2 and TGF-β1 are overexpressed in hepatitis C virus (HCV) infection and are related to hepatitis pathogenesis and hepatic fibrosis. The current study investigated the relationship between pretreatment COX-2 and TGF-β1 hepatic expression in HCV genotype 4 and the virological response to interferon therapy. Patients and Methods: Liver biopsies of 55 patients with HCV infection genotype 4 were selected together with 10 liver biopsies as control. The patients' clinicopathological data were collected. Immunohistochemistry was done using anti-COX-2 and anti-TGF-β1 antibodies. Statistical tests were used to determine the association between both COX-2 and TGF-β1 expression in relation to clinicopathological parameters and response to interferon therapy. Results: COX-2 was upregulated especially in nonresponders and was an independent predictor of poor virological response. However, COX-2 showed no association with other clinicopathological features. TGF-β1 was upregulated and associated with nonresponders, histological activity, and fibrosis stage. There was no association between TGF-β1 and other clinicopathological features. There was an association between COX-2 and TGF-β1 immunoexpression. Conclusion: Overexpression of COX-2 and TGF-β1 is an independent predictor for poor outcome of interferon and ribavirin therapy and these might be useful markers for the response to treatment. Both molecules are associated together; however, their role during hepatitis treatment has to be clarified.

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