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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Mesrian Tanha, Hamzeh Mojtabavi Naeini, Marjan Azadeh, Mansoureh Bagheri, Fatemeh Ghaedi, Kamran |
| Description | Country affiliation: Iran Author Affiliation: Bagheri F ( Biochemistry Division, Department of Biology, Faculty of Science, Payame Noor University of Taft, Yazd 4741695447, Iran.); Mesrian Tanha H ( Cellular and Molecular Biology Division, Department of Biology, Faculty of Science, University of Isfahan, Isfahan 8174673441, Iran.); Mojtabavi Naeini M ( Genetics Division, Department of Biology, Faculty of Science, University of Isfahan, Isfahan 817467344, Iran.); Ghaedi K ( Cellular and Molecular Biology Division, Department of Biology, Faculty of Science, University of Isfahan, Isfahan 8174673441, Iran.); Azadeh M ( Zist Fanavary Novin Institute, Isfahan 14115111, Iran.) |
| Abstract | ErbB4 can act as either a tumor-suppressor gene or an oncogene in breast cancer. Multiple genetic factors including single nucleotide polymorphisms (SNPs) affect gene expression patterns. Multiple 3'-untranslated region (3'-UTR) SNPs reside within the target binding site of microRNAs, which can strengthen or weaken binding to target genes. The present study aimed to predict potential 3'UTR variants of ErbB4 that alter the target binding site of microRNAs (miRNAs) and to clarify the association of the potential variant with the risk of developing breast cancer. In silico prediction was performed to identify potential functional SNPs within miRNA target binding sites in the 3'UTR of ErbB4. Thus, 146 patients and controls were genotyped using restriction fragment length polymorphism-polymerase chain reaction. In addition to the Cochran-Armitage test for trend, allele and genotype frequency differences were determined to investigate the association between rs1836724 and the susceptibility to breast cancer. Bioinformatics analysis identified rs1836724 to be a polymorphism in the seed region of four miRNA binding sites (hsa-miR335-5p, hsa-miR-28-5p, hasmiR7085p and hasmiR665), which may participate in the development of breast cancer. Logistic regression data indicated that the T allele of the polymorphism [OR (95% CI)=1.72 (1.0562.808), P=0.029] is associated with the risk of breast cancer. Using bioinformatics tools, a correlation was indicated between the presence of the T allele and a reduction in ErbB4 RNA silencing based on miRNA interaction. Furthermore, case subgroup data analysis revealed an association between the C/T genotype and an ER positive phenotype [OR (95% CI)=6.00 (1.08233.274), P=0.028] compared with the T/T genotype. ErbB4 and estrogen receptor 1 (ESR1) are regulated by identical miRNAs thus there may be a competition for binding sites. Due to this pattern, if the interaction between miRNAs with one gene is reduced, it may be consistent with the increase in interaction with another one. Therefore, more interaction with rs1836724 C variant within ErbB4 may be associated with higher expression of ESR1 (ERpositive phenotype). miRNAs interact with ErbB4 mRNA more frequently when it carries C allele at the rs1836724 position compared with the T carriers. Therefore, the identical miRNA interacts with ESR1 less frequently when ErbB4 mRNA has a C allele. Therefore, ESR1 expression may be higher when ErbB4 mRNA has a C allele. |
| ISSN | 17912997 |
| e-ISSN | 17913004 |
| Journal | Molecular Medicine Reports |
| Issue Number | 5 |
| Volume Number | 13 |
| Language | English |
| Publisher | Spandidos Publications |
| Publisher Date | 2016-05-01 |
| Publisher Place | Greece |
| Access Restriction | Open |
| Subject Keyword | Discipline Molecular Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Biochemistry Molecular Biology Cancer Research Molecular Medicine Oncology |
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