Long non‑coding RNA MLK7‑AS1 promotes proliferation in human colorectal cancer via downregulation of p21 expression

  • Authors:
    • Rui Zhang
    • Jibin Li
    • Xiaofei Yan
    • Keer Jin
    • Wenya Li
    • Xin Liu
    • Jianfeng Zhao
    • Wen Shang
    • Xiang Zhao
  • View Affiliations

  • Published online on: November 28, 2018     https://doi.org/10.3892/mmr.2018.9702
  • Pages: 1210-1221
Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Current studies have highlighted long non‑coding RNAs (lncRNAs) as critical regulators in various cancers, including colorectal cancer (CRC). By utilizing publicly available data from The Cancer Genome Atlas dataset, MLK7 antisense RNA 1 (MLK7‑AS1) was identified as a novel lncRNA that correlated with CRC progression. The results of reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) revealed a significant upregulation of MLK7‑AS1 in both CRC tissue samples and cell lines. In addition, a positive correlation was observed between increased MLK7‑AS1 expression and several clinicopathological factors in patients with CRC. Importantly, MLK7‑AS1 knockdown suppressed CRC cell proliferation and promoted G1/G0 phase arrest and apoptosis in vitro, whereas MLK7‑AS1 overexpression exhibited opposite effects. Consistently, decreased MLK7‑AS1 expression inhibited tumor growth in vivo. Furthermore, RT‑qPCR and western blot assays revealed that p21 may be a potential downstream target of MLK7‑AS1. To the best of the authors' knowledge, this is the first study to report that MLK7‑AS1 has potential as a biomarker and may promote proliferation in CRC partially through downregulating p21 expression.
View Figures
View References

Related Articles

Journal Cover

February-2019
Volume 19 Issue 2

Print ISSN: 1791-2997
Online ISSN:1791-3004

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Zhang R, Li J, Yan X, Jin K, Li W, Liu X, Zhao J, Shang W and Zhao X: Long non‑coding RNA MLK7‑AS1 promotes proliferation in human colorectal cancer via downregulation of p21 expression. Mol Med Rep 19: 1210-1221, 2019
APA
Zhang, R., Li, J., Yan, X., Jin, K., Li, W., Liu, X. ... Zhao, X. (2019). Long non‑coding RNA MLK7‑AS1 promotes proliferation in human colorectal cancer via downregulation of p21 expression. Molecular Medicine Reports, 19, 1210-1221. https://doi.org/10.3892/mmr.2018.9702
MLA
Zhang, R., Li, J., Yan, X., Jin, K., Li, W., Liu, X., Zhao, J., Shang, W., Zhao, X."Long non‑coding RNA MLK7‑AS1 promotes proliferation in human colorectal cancer via downregulation of p21 expression". Molecular Medicine Reports 19.2 (2019): 1210-1221.
Chicago
Zhang, R., Li, J., Yan, X., Jin, K., Li, W., Liu, X., Zhao, J., Shang, W., Zhao, X."Long non‑coding RNA MLK7‑AS1 promotes proliferation in human colorectal cancer via downregulation of p21 expression". Molecular Medicine Reports 19, no. 2 (2019): 1210-1221. https://doi.org/10.3892/mmr.2018.9702