Overexpression of the PTEN Gene in Myocardial Tissues of Coronary Bypass Surgery Patients


Tahtasakal R., Şener E. F., Delibasi N., Hamurcu Z., Mehmetbeyoglu E., Bayram K. K., ...Daha Fazla

ARQUIVOS BRASILEIROS DE CARDIOLOGIA, cilt.120, sa.4, 2023 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 120 Sayı: 4
  • Basım Tarihi: 2023
  • Doi Numarası: 10.36660/abc.20220169
  • Dergi Adı: ARQUIVOS BRASILEIROS DE CARDIOLOGIA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, EMBASE, Directory of Open Access Journals
  • Anahtar Kelimeler: Coronary Bypass Surgery, Myocardium, Gene Expression, PTEN
  • Erciyes Üniversitesi Adresli: Evet

Özet

Background: Coronary artery disease is a complex disorder that causes death worldwide. One of the genes involved in developing this disease may be PTEN. Objectives: This study aimed to investigate the PTEN gene and protein expression in tissue and blood samples taken from coronary bypass surgery patients.Methods: Molecular studies were performed at Erciyes University Genome and Stem Cell Center (GENKOK). Right atrial appendage and blood samples were taken from the central vein of 22 coronary bypass surgery patients before starting and ending cardiopulmonary bypass. PTEN expression was determined using quantitative real-time PCR and western blot analysis. The significance level was accepted as p<0.05.Results: There was no significant difference in the PTEN gene expression in blood samples taken before and after cardiopulmonary bypass. However, a substantial increase in both protein and gene expression levels of P-PTEN and PTEN was observed in the tissue samples. Myocardial expression of the PTEN gene was significantly increased at the end of the cardiopulmonary bypass. PTEN gene expression in the post-cardiopulmonary bypass period was increased when compared to the pre-bypass period, but it was insignificant when compared to healthy controls.Conclusion: This study first revealed the role of the PTEN gene by analyzing both mRNA and protein expression in coronary bypass patients, appearing in both myocardial tissue and blood samples. Increased levels of PTEN may be a marker in myocardial tissue for patients with coronary artery disease.