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Molecular Biology Reports

, Volume 46, Issue 2, pp 2355–2362 | Cite as

Sexual dimorphism in the expression of GKN2 and FOXA2 genes in the human stomach

  • Reza Mohammadi
  • Zahra Mohammadi
  • Reza Abedi
  • Fatemeh Chireh
  • Abdolreza Balali
  • Parisa Mohamadynejad
  • Sadegh Shirian
  • Mehdi MoghanibashiEmail author
Original Article

Abstract

A large proportion of the transcriptome is sex biased in a wide range of taxa. Sexually dimorphic genes expression is highly tissue-dependent. Although gastric cancer exhibits sex bias to some extent, sexually dimorphic gene expression in the stomach is yet to be fully understood. The aim of the present study was to compare the expression levels of 12 genes in the gastric tissue between age-matched healthy men and women of different age groups. A total of 70 human antrum gastric tissue samples were obtained by endoscopy. The difference in expression levels of the 12 intended genes between two genders was investigated using quantitative Real-Time PCR, following total RNA extraction. The results indicated that the expression levels of both the GKN2 (7.2-fold, p < 0.001) and FOXA2 (3.7-fold, p = 0.003) were significantly higher in men compared to those in women. In addition, FOXA1 gene expression was age-dependent only in women. Interestingly, the expression level of FOXA1 was significantly higher in premenopausal women compared to postmenopausal women (2.53-fold, p = 0.016). The expression levels of some of the investigated genes in this study were sex-dependent in the stomach. This sexual dimorphism in gene expression might influence the differential susceptibility to the gastric cancer between the sexes.

Keywords

Sexual dimorphism Gastric cancer GKN2 FOXA2 FOXA1 

Notes

Acknowledgements

We are grateful to Dr. F. Rastgar Jazii for his comments on the earlier draft and final edition of this article and nurses in the Imam Ali Hospital (Farokhshahr—Shahrekord—Iran) for their cooperation with regard to sampling.

Compliance with ethical standards

Conflict of interest

The authors have no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee 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

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Department of Biology, Faculy of Basic Sciences, Shahrekord BranchIslamic Azad UniversityShahrekordIran
  2. 2.Imam Ali HospitalShahrekordIran
  3. 3.Department of Pathology, School of Veterinary MedicineShahrekord UniversityShahrekordIran
  4. 4.Shiraz Molecular Pathology Research CenterDr Daneshbod Pathol LabShirazIran
  5. 5.Biotechnology Research InistituteShahrekord UniversityShahrekordIran
  6. 6.Department of Genetics, School of Medicine, Kazerun BranchIslamic Azad UniversityKazerunIran

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