Clinical significance and prognostic role of hypoxia-induced microRNA 382 in gastric adenocarcinoma

Autoři: An Na Seo aff001;  Yukdong Jung aff003;  Hyeonha Jang aff003;  Eunhye Lee aff001;  Han-Ik Bae aff001;  Taekwon Son aff005;  Ohkyung Kwon aff006;  Ho Young Chung aff007;  Wansik Yu aff006;  You Mie Lee aff003
Působiště autorů: Department of Pathology, School of Medicine, Kyungpook National University, Daegu, South Korea aff001;  Department of Pathology, Kyungpook National University Chilgok Hospital, Daegu, South Korea aff002;  BK21 Plus KNU Multi-Omics Based Creative Drug Research Team, College of Pharmacy, Kyungpook National University, Daegu, South Korea aff003;  Research Institute of Pharmaceutical Sciences, College of Pharmacy, Kyungpook National University, Daegu, South Korea aff004;  Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea aff005;  Department of Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu, South Korea aff006;  Department of Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea aff007
Vyšlo v časopise: PLoS ONE 14(10)
Kategorie: Research Article


Hypoxia and angiogenesis are critical components in the progression of solid cancer, including gastric cancers (GCs). miR-382 has been identified as a hypoxia-induced miR (hypoxamiR), but the clinical significance in GCs has not been identified yet. To explore the clinical and prognostic importance of miR-382 in GCs, the surgical specimens of 398 patients with GCs in KNU hospital in Korea, the total of 183 patients was randomly selected using simple sampling methods and big data with 446 GCs and 45 normal tissues from the data portal ( were analysed. Expression of miR-382 as well as miR-210, as a positive control hypoxamiR by qRT-PCR in histologically malignant region of GCs showed significantly positive correlation (R = 0.516, p<0.001). High miR-210 and miR-382 expression was significantly correlated with unfavorable prognosis including advanced GCs (AGC), higher T category, N category, pathologic TNM stage, lymphovascular invasion, venous invasion, and perinueral invasion, respectively (all p<0.05). In univariate analysis, high miR-210 expression was significantly associated with worse overall survival (OS) (p = 0.036) but not high miR-382. In paired 60 gastric normal and cancer tissues, miR-382 expression in cancer tissues was significantly higher than normal counterpart (p = 0.003), but not miR-210 expression. However, by increasing the patient number from the big data analysis, miR-210 as well as miR-382 expression in tumor tissues was significantly higher than the normal tissues. Our results suggest that miR-382, as novel hypoxamiR, can be a prognostic marker for advanced GCs and might be correlated with metastatic potential. miR-382 might play important roles in the aggressiveness, progression and prognosis of GCs. In addition, miR-382 give a predictive marker for progression of GCs compared to the normal or preneoplastic lesion.

Klíčová slova:

Adenocarcinomas – Gastric cancer – Gastrointestinal tract – Hypoxia – Medical hypoxia – MicroRNAs – Prognosis – Angiogenesis


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