title: High TUG1 expression is associated with chemotherapy resistance and poor prognosis in esophageal squamous cell carcinoma.
abstract: Long noncoding RNAs (lncRNAs) play critical roles in diverse biological processes such as tumorigenesis and metastasis. Taurine upregulated gene 1 (TUG1) is a cancer-related lncRNA that is associated with chromatin-modifying complexes and plays an important role in gene regulation. In this study, we determined the expression patterns of TUG1 in esophageal squamous cell carcinoma (ESCC) and evaluated its clinical significance.
  
  
  
  The expression level of TUG1 was examined in 218 pairs of ESCC and adjacent non-cancerous tissues by using quantitative real-time polymerase chain reaction. The relationship between TUG1 expression and clinical features and prognosis was statistically analyzed.
  
  
  
  The expression level of TUG1 was significantly upregulated in ESCC tissues compared with paired adjacent normal tissues. High TUG1 expression was significantly correlated with chemotherapy resistance. Survival analysis showed that patients with high TUG1 expression had poor prognosis, especially for cases with well and moderate differentiation, ulcerative type, smaller size, and chemotherapy-sensitive tumors.
  
  
  
  Our findings suggest that elevated TUG1 expression is related to chemotherapy resistance and may help predict a poor prognostic outcome of ESCC. TUG1 may provide a potential therapeutic target for ESCC.
authors.affiliation: Department of Anesthesiology, Taizhou People's Hospital, Taizhou, Jiangsu, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Jiang
authors.affiliation: Department of Pathology, Yangzhou University School of Medicine, Yangzhou, Jiangsu, China.
authors.forename: Wenchao
authors.initials: W
authors.lastname: Wang
authors.affiliation: Department of Pathology, Yangzhou University School of Medicine, Yangzhou, Jiangsu, China.
authors.forename: Guoli
authors.initials: G
authors.lastname: Li
authors.affiliation: Department of Anesthesiology, Taizhou People's Hospital, Taizhou, Jiangsu, China.
authors.forename: Canlin
authors.initials: C
authors.lastname: Sun
authors.affiliation: Department of Anesthesiology, Taizhou People's Hospital, Taizhou, Jiangsu, China.
authors.forename: Zhenqin
authors.initials: Z
authors.lastname: Ren
authors.affiliation: Shanghai Engineering Center for Molecular Medicine, National Engineering Center for Biochip at Shanghai, Shanghai, China.
authors.forename: Haihui
authors.initials: H
authors.lastname: Sheng
authors.affiliation: Shanghai Engineering Center for Molecular Medicine, National Engineering Center for Biochip at Shanghai, Shanghai, China.
authors.forename: Hengjun
authors.initials: H
authors.lastname: Gao
authors.affiliation: Department of Pathology, Ruijing Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 00032, China. wangchaofu@126.com.
authors.forename: Chaofu
authors.initials: C
authors.lastname: Wang
authors.affiliation: Department of Pathology, Taizhou People's Hospital, Taizhou, 225300, Jiangsu, China. yuhongmiaomiao@163.com.
authors.forename: Hong
authors.initials: H
authors.lastname: Yu
mesh_terms: D000368:Aged; D000970:Antineoplastic Agents / Q000494:pharmacology*; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy* / Q000235:genetics / Q000473:pathology; D019008:Drug Resistance, Neoplasm / Q000235:genetics*; D004938:Esophageal Neoplasms / Q000188:drug therapy* / Q000235:genetics / Q000473:pathology; D000077277:Esophageal Squamous Cell Carcinoma; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D062085:RNA, Long Noncoding / Q000235:genetics*; D060888:Real-Time Polymerase Chain Reaction; D015854:Up-Regulation / Q000187:drug effects
chemical_list: D000970:Antineoplastic Agents; D062085:RNA, Long Noncoding; C000598536:TUG1 long noncoding RNA, human
keywords: Chemotherapy; Drug resistance; Esophageal squamous cell carcinoma; Long noncoding RNA; TUG1