Introduction and aim. Hepatocellular carcinoma (HCC) is the most common primary malignant liver tumor. It is primarily caused by hepatic cirrhosis or chronic viral hepatitis. Hepatic carcinogenesis is associated with increased oxidative stress. Thus, the aim of our study was to assess expression of the genes involved in the homeostasis of oxidative stress in patients with HCC. MATERIAL AND METHODS: The study was performed on 32 patients with primary HCC (verified by liver histology in 29 patients) and 27 control subjects (in 11 subjects, liver histology was available either with no or minimal changes in the liver tissue). Gene expressions of heme oxygenase 1 (HMOX1), biliverdin reductase A/B (BLVRA/B), NADPH oxidase 2 (NOX2) and p22phox were analyzed in the liver and peripheral blood leukocytes (PBL) in the subjects. RESULTS: Compared to controls, almost a 3 times higher mRNA level of BLVRA was detected in livers of HCC patients (p = 0.002); while those of BLVRB as well as HMOX1 were unchanged (p > 0.05). In accord with these results in the liver tissue, BLVRA mRNA levels in PBL were also significantly increased in HCC patients (p = 0.012). mRNA levels of NOX2 and p22phox in the liver tissue, although higher in HCC patients, did not differ significantly compared to control subjects (p > 0.05). Nevertheless, NOX2 mRNA level in PBL was significantly higher in HCC patients (p = 0.003). CONCLUSIONS: BLVRA mRNA levels in the liver as well as in PBL are significantly higher in HCC patients most likely as a feedback mechanism to control increased oxidative stress associated with HCC progression.

• MeSH
• hemoxygenasa-1 genetika   MeSH
• hepatocelulární karcinom krev   enzymologie   genetika   patologie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• membránové glykoproteiny genetika   MeSH
• messenger RNA genetika   MeSH
• nádorové biomarkery krev   genetika   MeSH
• nádory jater krev   enzymologie   genetika   patologie   MeSH
• NADPH-oxidasy genetika   MeSH
• oxidační stres genetika   MeSH
• oxidoreduktasy působící na CH-CH vazby krev   genetika   MeSH
• progrese nemoci MeSH
• regulace genové exprese enzymů MeSH
• regulace genové exprese u nádorů MeSH
• senioři MeSH
• signální transdukce MeSH
• studie případů a kontrol MeSH
• upregulace MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH