TY - JOUR AB - The 8q24 chromosomal region is strongly associated with an increased risk of ovarian cancer. One single nucleotide polymorphism that is associated with ovarian cancer in this region is rs6983267, located within the long non‑coding RNA colon cancer associated transcript 2 (CCAT2). The aim of the present study was to assess the association between rs6983267 and clinical outcomes in patients with high‑grade serous ovarian cancer (HGSOC). The present retrospective genetic association study utilized Sanger sequencing to determine the genotype at the rs6983267 locus (GG, GT, TT) in 98 patients with HGSOC. Survival time and chemotherapy responses between patients were compared with the TT genotype and patients with a genotype containing a G allele (GT, GG). Survival analyses were performed using Cox proportional hazard ratio analysis. Association with chemo‑response was performed using a logistic regression. The results revealed that patients with HGSOC and the TT genotype at the rs6983267 locus had improved survival time compared with patients with genotypes containing a G allele [hazard ratio=0.59; 95% confidence interval (CI), 0.36‑0.97; P=0.039] and were significantly associated with International Federation of Gynecology and Obstetrics stage [odds ratio (OR)=5.34; 95% CI, 1.50‑22.62; P=0.014] and positive chemo‑response (OR=4.51; 95% CI, 1.40‑18.00; P=0.018). In summary, patients with HGSOC and the TT genotype at the rs6983267 locus had improved survival time compared with those with a G allele, despite being associated with more advanced disease; this was possibly due to an improved response to chemotherapy. AD - Department of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Iowa, IA 52242, USA AU - Ikoma,Danielle AU - Cardillo,Nicholas AU - Devor,Eric AU - Gonzalez‑Bosquet,Jesus DA - 2021/10/01 DO - 10.3892/ol.2021.12994 IS - 4 JO - Oncol Lett KW - long non‑coding RNA chromosome 8q24 colon cancer associated transcript 2 rs6983267 single nucleotide polymorphism high‑grade serous ovarian cancer PY - 2021 SN - 1792-1074 1792-1082 SP - 733 ST - A nuclear polymorphism at the 8q24 region is associated with improved survival time and chemo‑response in high‑grade serous ovarian cancer T2 - Oncology Letters TI - A nuclear polymorphism at the 8q24 region is associated with improved survival time and chemo‑response in high‑grade serous ovarian cancer UR - https://doi.org/10.3892/ol.2021.12994 VL - 22 ER -