Open Access

Long non‑coding RNA small nucleolar RNA host gene 7 is upregulated and promotes cell proliferation in thyroid cancer

  • Authors:
    • Li Chen
    • Jing Zhu
    • Ling‑Jie Zhang
  • View Affiliations

  • Published online on: August 27, 2019     https://doi.org/10.3892/ol.2019.10782
  • Pages: 4726-4734
  • Copyright: © Chen et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Thyroid cancer (THCA) is one of the most common types of endocrine cancer worldwide. However, the mechanisms underlying THCA progression have not been fully elucidated. Recent studies have demonstrated that long non‑coding RNAs (lncRNAs) are dysregulated in human diseases, and are involved in regulating various biological processes. Furthermore, several reports have indicated that lncRNAs serve important roles in THCA. In the present study, a dataset from The Cancer Genome Atlas was used to analyze the expression levels and the clinical information of small nucleolar RNA host gene 7 (SNHG7) in THCA. Starbase was used to construct the competing endogenous RNA network. The Molecule Annotation System was used to analyze the data from Gene Ontology and Kyoto Encyclopedia of Genes and Genomes databases. Furthermore, cell proliferation and cell cycle assays were used to detect the functions of SNHG7 in THCA. The present study revealed for the first time, to the best of our knowledge, that SNHG7 is markedly upregulated in THCA samples following analysis of The Cancer Genome Atlas datasets. SNHG7 expression was higher in advanced stage compared with early stage THCA samples. In addition, high expression levels of SNHG7 were associated with shorter survival times in THCA patients compared with low expression levels. Bioinformatics analysis revealed that SNHG7 was associated with the processes of ‘protein translation’, ‘viral life cycle’, ‘RNA processing’, ‘mRNA splicing’, ‘histone ubiquitination’, ‘endoplasmic reticulum‑to‑Golgi vesicle‑mediated transport’, ‘sister chromatid cohesion’, ‘DNA damage checkpoint regulation’, ‘translation’ and ‘the spliceosome’. Additionally, knockdown of SNHG7 significantly inhibited thyroid cancer cell proliferation and cell cycle progression in vitro. Taken together, the results obtained in the present study suggested that SNHG7 may serve as a novel therapeutic and prognostic target for THCA.
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November-2019
Volume 18 Issue 5

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Chen L, Zhu J and Zhang LJ: Long non‑coding RNA small nucleolar RNA host gene 7 is upregulated and promotes cell proliferation in thyroid cancer. Oncol Lett 18: 4726-4734, 2019
APA
Chen, L., Zhu, J., & Zhang, L. (2019). Long non‑coding RNA small nucleolar RNA host gene 7 is upregulated and promotes cell proliferation in thyroid cancer. Oncology Letters, 18, 4726-4734. https://doi.org/10.3892/ol.2019.10782
MLA
Chen, L., Zhu, J., Zhang, L."Long non‑coding RNA small nucleolar RNA host gene 7 is upregulated and promotes cell proliferation in thyroid cancer". Oncology Letters 18.5 (2019): 4726-4734.
Chicago
Chen, L., Zhu, J., Zhang, L."Long non‑coding RNA small nucleolar RNA host gene 7 is upregulated and promotes cell proliferation in thyroid cancer". Oncology Letters 18, no. 5 (2019): 4726-4734. https://doi.org/10.3892/ol.2019.10782