Tumor Biology

, Volume 37, Issue 7, pp 9503–9510 | Cite as

Low expression of long noncoding RNA CASC2 indicates a poor prognosis and regulates cell proliferation in non-small cell lung cancer

Original Article


Recently, long noncoding RNAs (lncRNAs) have been shown to have important regulatory roles in human cancer biology. The aim of this study was to evaluate the expression and biological role of lncRNA CASC2 in non-small cell lung cancer (NSCLC). By bioinformatics analysis, we found that CASC2 was significantly decreased in NSCLC. qRT-PCR was performed to investigate the expression of CASC2 in tumor tissues and corresponding non-tumor NSCLC tissues from 76 patients. The lower expression of CASC2 was remarkably correlated with advanced TNM stage and tumor size. Multivariate analyses found that CASC2 expression served as an independent predictor for overall survival of NSCLC. Moreover, overexpression of CASC2 significantly inhibited NSCLC cell proliferation both in vitro and in vivo. In conclusion, our study demonstrated that CASC2 is involved in the development and progression of NSCLC and shows that CASC2 may be a potential diagnostic and target for new therapies in patients with NSCLC.


lncRNAs CASC2 NSCLC Cell proliferation 



This work was supported by the National Natural Science Foundation of China (81502071, 81401873, 81402554 and 81172217). Jin-song Yang was supported by the Medical Science Development Subject in Science and Technology Project of Nanjing (Grant No. ZKX13017), the Natural Science Foundation of Jiangsu province (No. BK20151086).

Compliance with ethical standards

Conflicts of interest



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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2016

Authors and Affiliations

  1. 1.Department of Biochemistry and Molecular BiologyNanjing Medical UniversityNanjingPeople’s Republic of China
  2. 2.Department of Oncology, the Affiliated Jiangyin hospital, School of MedicienSoutheast UniversityWuxiPeople’s Republic of China
  3. 3.Department of Oncology, Nanjing First HospitalNanjing Medical UniversityNanjingPeople’s Republic of China
  4. 4.Central laboratorythe Second Affiliated Hospital of Southeast UniversityNanjingPeople’s Republic of China
  5. 5.Department of Oncology, Xuzhou Central Hospital, Affiliated Xuzhou Hospital, College of MedicineSoutheast UniversityXuzhouPeople’s Republic of China
  6. 6.Department of OncologyFirst Affiliated Hospital of Nanjing Medical UniversityNanjingPeople’s Republic of China

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