Title:The Computational Analysis of Single Nucleotide Associated with MicroRNA
Affecting Hepatitis B Infection
Volume: 11
Issue: 2
Author(s): Mirza Ali Nazarnezhad, Mahdi Barazesh*, Soudabeh Kavousipour*, Shiva Mohammadi, Ebrahim Eftekhar and Sajad Jalili
Affiliation:
- Department of Biotechnology, School of Paramedical Sciences, Gerash University of Medical Sciences,
Gerash, Iran
- Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences,
Bandar Abbas 7919915519, Iran
Keywords:
Hepatitis B, hepatocellular carcinoma, single nucleotide polymorphisms, microRNA, cellular transcription, biosynthesis.
Abstract:
Background: MicroRNAs (miRNAs) have a pivotal role in Hepatitis B Virus (HBV) infection
and its complications by targeting the cellular transcription factors required for gene expression
or directly binding to HBV transcripts. Single Nucleotide Polymorphisms (SNPs) in miRNA
genes affect their expression and the regulation of target genes, clinical course, diagnosis, and therapeutic
interventions of HBV infection.
Methods: Computational assessment and cataloging of miRNA gene polymorphisms targeting
mRNA transcripts straightly or indirectly through the regulation of hepatitis B infection by annotating
the functional impact of SNPs on mRNA-miRNA and miRNA-RBS (miRNA binding sites) interaction
were screened by applying various universally available datasets such as the miRNA
SNP3.0 software.
Results: 2987 SNPs were detected in 139 miRNAs affecting hepatitis B infection. Among them,
313 SNPs were predicted to have a significant role in the progression of hepatitis B infection. The
computational analysis also revealed that 45 out of the 313 SNPs were located in the seed region
and were more important than others. Has-miR-139-3p had the largest number of SNPs in the seed
region (n=6). On the other hand, proteoglycans in cancer, adherens junction, lysine degradation, NFkappa
B signaling cascade, ECM-receptor binding, viral carcinogenesis, fatty acid metabolism,
TGF-beta signaling pathway, p53 signaling pathway, immune evasion related pathways, and fatty
acid biosynthesis were the most important pathways affected by these 139 miRNAs.
Conclusion: The results revealed 45 SNPs in the seed region of 25 miRNAs as the catalog in miRNA
genes that regulated the hepatitis B infection. The results also showed the most important pathways
regulated by these miRNAs that can be targeted for therapeutic purposes.