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Association between TNF-α, Interleukin-18 Polymorphisms and Risk of Hepatocellular Carcinoma in Egyptian patients
Heba Sharafelldin1, Abdalla Morsy2, Hany Elghobary1
1Clinical and Chemical Pathology, Cairo University, Cairo, Egypt.
Objective:
To evaluate the association of gene polymorphisms of the SNP of TNF-α gene -238G>A and IL-18 gene-607C>A with the development of hepatocellular carcinoma among Egyptian patients.
Methods:
One hundred and fifty patients were allocated to this study; eighty patients with hepatocellular carcinoma (Group A), seventy cancer-free HCV age, and sex-matched patients (Group B). We analyzed two Single nucleotide polymorphisms (SNPs) (TNF-α-238G>A and IL-18-607C>A) by real-time polymerase chain reaction using sequence-specific primers (PCR-SSP).
Results:
Significant higher risk of HCC was associated with genotype IL-18-607AA (p <0.001), OR: 5(2.188-11.47), allele IL-18 -607⁄A (P=0.001), OR: 2.1(1.32-3.3). A significant association was found between the size of HFL in the HCC group and different genotypes of IL18 genes (P=0.013) where 62.5% of patients with tumor size >5 cm carried the risky (AA) genotype on the other hand the SNP of TNF-α gene -238G>A showed no statistically significant association between the two groups.
Conclusion:
The SNP -607C>A in the IL18 gene was associated with increased HCC risk in Egyptian patients suggesting its use as a potential diagnostic non-invasive tool that allows to identify a new group of HCC patients at an earlier stage.
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