miR-581-Related Single Nucleotide Polymorphism, rs2641726, Located in MUC4 Gene, is Associated with Gastric Cancer Incidence

  • Fariba Nabatchian
  • Mahdis Rahimi Naiini
  • Afshin Moradi
  • Hossein Tabatabaeian
  • Negin Hoghoughi
  • Mansoureh Azadeh
  • Kamran Ghaedi
Original Article


MUC4 is aberrantly expressed in several carcinomas including breast, colon, ovarian, lung, prostate, stomach and pancreatic cancers. MUC4 can regulate cell apoptosis negatively and facilitate stomach tumorigenesis. In this research, we aimed to evaluate the possible association between rs2641726 (C > A) polymorphism of MUC4 and gastric cancer risk in the Iranian population. In this case-control study, we collected blood samples from 168 gastric cancer patients and 66 healthy subjects. Allele-specific primer polymerase chain reaction method was applied to genotype rs2641726 in the obtained DNA samples. This study demonstrated that rs2641726 C allele was significantly associated with the incidence of gastric cancer, odds ratio = 3.382, 95% confidence interval: 1.840–6.217 (P < 0.001). Furthermore, the distribution of this risk allele was highly enriched in the samples with stage III. In silico studies revealed that the C allele of rs2641726, located within MUC4 3′UTR, is potential to attenuate the interaction between miR-581 and MUC4 mRNA. This disturbing effect, which might result in higher expression of MUC4 oncoprotein, was proposed for the mechanism of action of the rs2641726 risk allele. rs2641726 C allele is significantly enriched in gastric cancer specimens. The attenuating effect of this allele on miR-581 and MUC4 interaction might be a potential mechanism of action by which C allele imposes its oncogenic impact.


rs2641726 miR-581 MUC4 Gastric cancer Single nucleotide polymorphism 



The authors wish to thank the Vice-Chancellor of Research, Tehran University of Medical Sciences, for supporting this study financially. This paper was the results of a research project approved by Tehran University of Medical Sciences (Contract Number: 96-02-31-35240).

Compliance with Ethical Standards

Conflict of interest

All authors declare that they have no conflict of interest.

Research Involving Human Participants and/or Animals

All procedures performed in studies involving human participants were in accordance with the ethical standards of the Ethics Committee of Tehran University of Medical Sciences, Tehran, Iran, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed Consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Association of Clinical Biochemists of India 2018

Authors and Affiliations

  • Fariba Nabatchian
    • 1
  • Mahdis Rahimi Naiini
    • 2
  • Afshin Moradi
    • 1
  • Hossein Tabatabaeian
    • 3
    • 4
  • Negin Hoghoughi
    • 2
    • 3
  • Mansoureh Azadeh
    • 2
  • Kamran Ghaedi
    • 3
  1. 1.Department of Medical Laboratory Sciences, Faculty of Allied MedicineTehran University of Medical SciencesTehranIran
  2. 2.Zist Fanavari Novin, Biotechnology InstituteIsfahanIran
  3. 3.Division of Cellular and Molecular Biology, Department of Biology, Faculty of SciencesUniversity of IsfahanIsfahanIran
  4. 4.Department of Biochemistry, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore

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