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Constructing a Novel Competing Endogenous Rnas Network Based on Nr3c1 and X-Linked Inhibitor of Apoptosis Protein Genes Reveals Potential Prognostic Biomarkers in Colorectal Cancer Publisher



Abdolvand M1, 2, 3 ; Sadeghi M4 ; Emami M5 ; Fahim A5 ; Rahimi H5 ; Amjadi E5 ; Baghaei A5 ; Abdolvand S6 ; Maghool F5 ; Feizbakhshan S1, 2 ; Salmanizadeh S1, 2 ; Heidari E7, 8 ; Chehelgerdi M7 ; Khodadoostan M9 Show All Authors
Authors
  1. Abdolvand M1, 2, 3
  2. Sadeghi M4
  3. Emami M5
  4. Fahim A5
  5. Rahimi H5
  6. Amjadi E5
  7. Baghaei A5
  8. Abdolvand S6
  9. Maghool F5
  10. Feizbakhshan S1, 2
  11. Salmanizadeh S1, 2
  12. Heidari E7, 8
  13. Chehelgerdi M7
  14. Khodadoostan M9
  15. Ebrahim M9
  16. Beni F2, 3
  17. Kazemi M3
  18. Hemati S10
  19. Khosravian F1, 2, 3
  20. Rahimi H5
  21. Samadian A5
  22. Salehi M1, 2, 3
Show Affiliations
Authors Affiliations
  1. 1. Molecular and Genetics Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Medical Genetics Research Center of Genome, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Science, Isfahan, Iran
  4. 4. Department of Genetics, Faculty of Sciences, Shahrekord University, Shahrekord, Iran
  5. 5. Poursina Hakim Digestive Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  6. 6. Department of Genetics, Faculty of Sciences, Islamic Azad University, Shahrekord Branch, Shahrekord, Iran
  7. 7. Young Researchers and Elite Club, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
  8. 8. Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
  9. 9. Department of Gastroenterology and Hepatology, AlZahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
  10. 10. Department of Radiooncology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Source: Journal of Research in Medical Sciences Published:2022


Abstract

Background: Long noncoding RNAs (lncRNAs) have been recognized as the main modulatory molecules in various cancers and perform as competing endogenous RNAs (ceRNAs). The nuclear hormone receptor superfamily of ligand-activated transcription factors (NR3C1) regulates numerous proliferative and metabolic processes such as tumorigenesis and metabolic diseases. Furthermore, X-linked inhibitor of apoptosis protein (XIAP) belongs to a family of the inhibitors of apoptosis proteins, is located downstream of the glucocorticoid receptor (GR or NR3C1) pathway, and cooperates with GR to suppress apoptosis. However, the underlying mechanisms of NR3C1 and XIAP in colorectal cancer (CRC) remain mainly unclear. This research aims to clarify the potential RNA biomarkers and to construct a novel ceRNA network in CRC. Materials and Methods: Multistep bioinformatics methods such as Lnc2cancer and miRDB databases were applied to identify candidate lncRNAs and miRNAs. The interaction energy between lncRNAs, NR3C1, and XIAP genes was analyzed by the LncRRIsearch database. Plus, microRNAs and lncRNA were evaluated via the Diana tools database to select microRNAs with the most binding scores. Quantitative reverse transcription-polymerase chain reaction (QRT-PCR) was applied to verify RNA molecules' expression levels and their association with the clinicopathological factors in 30 CRC tissues compared to 30 adjacent tissues. Results: QRT-PCR showed upregulation of KCNQ1OT1, NR3C1, and XIAP and downregulation of miR-421. The ceRNA network was constructed with 17 lncRNAs, 2 mRNAs, and 42 miRNAs. Thus, we explained the potential interactions between KCNQ1OT1 and miR-421 with NR3C1 and XIAP genes. Conclusion: Our study represents potential prognostic biomarkers and a new ceRNA network for further study in CRC. © 2022 IGI Global. All rights reserved.
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