TY - JOUR AB - While various molecular profiling methods have been described for the early diagnosis and prognostic process of endometrial cancer, the most common gynaecological cancer, the data obtained remain insufficient. The present study aimed to investigate the protein and gene expression of periostin and its role as a new biomarker in the diagnosis, treatment and prognosis of endometrial cancer. A total of 15 patients diagnosed with endometrial cancer at the Department of Pathology, Zeynep Kamil Training and Research Hospital (Istanbul, Turkey) and 15 patients who were operated on for non‑tumour‑related reasons, between December 2019 and May 2020, were included in the study. The cases diagnosed with endometrial cancer were divided into three groups: International Federation of Gynaecology and Obstetrics grades I, II and III. Pathology tumour blocks were selected for enzyme‑linked immunosorbent assay and PCR studies in which periostin gene expression and protein levels were measured, respectively. A significant increase in periostin gene expression was observed in the endometrial cancer samples compared with that in the controls (3.40±0.66 vs. 2.23±0.47). The protein level of periostin in the tissues was found to be higher in the endometrial cancer samples than that in the control group (1.59±0.31 vs. 0.94±0.22). The levels of periostin protein and gene expression detected in the endometrial cancer samples increased as the grade increased. To the best of our knowledge, the current study is the first to determine the levels of periostin protein and gene expression in endometrial cancer. The results suggested that periostin may be used as a biomarker in the determination of higher histological grade in endometrial cancer. AD - Department of Obstetrics and Gynaecology, Gaziosmanpasa Hospital, Yeni Yuzyil University, Istanbul 34245, Turkey Department of Pathology, Zeynep Kamil Training and Research Hospital, Istanbul 2022, Turkey Department of Biochemistry, School of Medicine, Aydin Adnan Menderes University, Aydin 09010, Turkey AU - Herkiloglu,Dilsad AU - Gokce,Sefik AU - Kaygusuz,Ecmel,Isik AU - Cevik,Ozge DA - 2022/07/01 DO - 10.3892/ol.2022.13335 IS - 1 JO - Oncol Lett KW - endometrial cancer periostin early diagnosis PY - 2022 SN - 1792-1074 1792-1082 SP - 213 ST - Expression of periostin according to endometrial cancer grade T2 - Oncology Letters TI - Expression of periostin according to endometrial cancer grade UR - https://doi.org/10.3892/ol.2022.13335 VL - 24 ER -