[Correlation between interleukin-28B genetic polymorphisms and primary hepatocellular carcinoma]

Area of Science:

• Genetics
• Oncology
• Immunology

Background:

• Hepatocellular carcinoma (HCC) is a significant global health concern.
• The interleukin-28B (IL-28B) gene plays a role in immune responses and has been implicated in viral hepatitis and cancer susceptibility.

Purpose of the Study:

• To investigate the association between single nucleotide polymorphisms (SNPs) in the IL-28B gene and the risk of developing primary HCC.
• To explore potential correlations between specific IL-28B genotypes and clinical outcomes in HCC patients, such as tumor thrombosis in the portal vein (TTPV).

Main Methods:

• A case-control study was conducted with 300 HCC patients and 310 healthy controls from Han Chinese populations.
• Genotyping of four IL-28B gene SNPs (rs12972991, rs4803223, rs8099917, rs12979860) was performed using matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF).
• Statistical analyses, including chi-squared tests and odds ratio (OR) calculations, were used to assess the significance of associations.

Main Results:

• Significant differences in allele and genotype frequencies of IL-28B SNPs (rs12972991, rs8099917, rs4803223) were observed between HCC cases and controls.
• Specific alleles (C at rs12972991, G at rs8099917, G at rs4803223) and genotypes (AC+CC at rs12972991, GT+GG at rs8099917, GA+GG at rs4803223) were associated with an increased risk of HCC.
• The GA+GG genotype at rs4803223 was significantly more frequent in HCC patients with tumor thrombosis in the portal vein (TTPV) compared to those without.

Conclusions:

• IL-28B gene polymorphisms are associated with susceptibility to HCC in the Han Chinese population.
• The GA+GG genotype at rs4803223 may be a risk factor for developing TTPV in HCC patients.