Caspase 3, 6, 8, and 9 Gene Expression in Peripheral Blood Leukocytes and Plasma Concentrations of IL-6 and TNF-α in Carriers of Different Polymorphic Marker -174G>C Genotypes of IL6 Gene Associated with the Risk of Nonalcoholic Steatohepatitis

Bull Exp Biol Med. 2017 Jan;162(3):370-374. doi: 10.1007/s10517-017-3618-0. Epub 2017 Jan 14.

Abstract

We revealed an association of IL6 gene -174G>C polymorphism with the development of nonalcoholic steatohepatitis in the Russian population. The risk is significantly higher in carriers of C allele: OR=1.77 (1.04; 3.02). The effects of -174G>C substitution in IL6 gene involving caspase 9 gene transcripts in peripheral blood leukocytes and on blood content of TNF-α in healthy individuals without clinical manifestations of nonalcoholic steatohepatitis were detected. The content of caspase 9 gene transcripts in peripheral blood leukocytes and plasma level of TNF-α were significantly higher in healthy subjects carrying C allele than in carriers of GG genotype. The levels of caspases 3, 6, 8, and 9 gene transcripts in peripheral blood leukocytes and plasma concentrations of TNF-α in patients with nonalcoholic steatohepatitis did not depend on IL6 genotype by -174G<C marker.

Keywords: caspases; interleukin-6; nonalcoholic steatohepatitis; polymorphism.

MeSH terms

  • Adult
  • Alleles
  • Caspase 3 / genetics
  • Caspase 3 / immunology
  • Caspase 6 / genetics
  • Caspase 6 / immunology
  • Caspase 8 / genetics
  • Caspase 8 / immunology
  • Caspase 9 / genetics*
  • Caspase 9 / immunology
  • Female
  • Gene Expression Regulation
  • Gene Frequency
  • Genetic Predisposition to Disease*
  • Heterozygote
  • Humans
  • Interleukin-6 / genetics*
  • Interleukin-6 / immunology
  • Leukocytes, Mononuclear / immunology
  • Leukocytes, Mononuclear / metabolism*
  • Leukocytes, Mononuclear / pathology
  • Male
  • Middle Aged
  • Non-alcoholic Fatty Liver Disease / diagnosis
  • Non-alcoholic Fatty Liver Disease / epidemiology
  • Non-alcoholic Fatty Liver Disease / genetics*
  • Non-alcoholic Fatty Liver Disease / immunology
  • Polymorphism, Single Nucleotide
  • Risk Factors
  • Russia / epidemiology
  • Signal Transduction
  • Tumor Necrosis Factor-alpha / genetics*
  • Tumor Necrosis Factor-alpha / immunology

Substances

  • IL6 protein, human
  • Interleukin-6
  • Tumor Necrosis Factor-alpha
  • CASP3 protein, human
  • CASP6 protein, human
  • CASP8 protein, human
  • CASP9 protein, human
  • Caspase 3
  • Caspase 6
  • Caspase 8
  • Caspase 9