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Opposite Trends of Gas6 and Gas6-As Expressions in Breast Cancer Tissues Publisher Pubmed



Lavasani A1 ; Hussen BM2 ; Taheri F3 ; Sattari A1 ; Yousefi H4 ; Omrani MD5 ; Nazer N6 ; Ghafourifard S7 ; Taheri M8
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Authors Affiliations
  1. 1. Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  2. 2. Pharmacognosy Department, College of Pharmacy, Hawler Medical University, Erbil, Iraq
  3. 3. Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Department of Biochemistry and Molecular Biology, LSUHSC, School of Medicine, New Orleans, United States
  5. 5. Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  6. 6. Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran
  7. 7. Men's Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  8. 8. Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Source: Experimental and Molecular Pathology Published:2021


Abstract

Growth arrest-specific gene 6 (GAS6) is a growth factor-like cytokine whose function is related with vitamin K. This protein interacts with receptor tyrosine kinase proteins such as Tyro3, Axl, and TAM Receptor family, therefore affecting the tumorigenic processes via different mechanisms. GAS6-antisense 1 (GAS6-AS1) is a long non-coding RNAs (lncRNAs) that is transcribed from a genomic regions nearby GAS6. This lncRNA is also implicated in the pathobiology of cancer. We intended to judge the role of GAS6 and GAS6-AS1 in the pathogenesis of breast cancer through appraisal of their expression levels in breast cancer tissues and their paired neighboring non-cancerous samples. Expression of GAS6 was up-regulated in breast cancer tissues compared with neighboring tissues (Ratio of Mean Expressions = 2.18, P value = 4.98E-02). On the other hand, expression of GAS6-AS1 was down-regulated in breast tumor tissues compared with controls (Ratio of Mean Expressions = 0.37, P value = 4.26E-03). There were substantial correlations between expression levels GAS6 and GAS6-AS1 in non-cancerous tissues (r = 0.74, P value = 1.47e-13) and cancer tissues (r = 0.85, P value = 2.28e-20). Expression of GAS6-AS was associated with progesterone receptor status (P value = 1.36E-02). However, expressions of this gene and the sense transcript were not linked with any other clinical or demographic variable. Taken together, GAS6 and GAS6-AS1 might partake in the development of breast cancer. © 2020 Elsevier Inc.
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