Evaluation of miR-21 Inhibition and its Impact on Cancer Susceptibility Candidate 2 Long Noncoding RNA in Colorectal Cancer Cell Line

(2018) Evaluation of miR-21 Inhibition and its Impact on Cancer Susceptibility Candidate 2 Long Noncoding RNA in Colorectal Cancer Cell Line. Adv Biomed Res. p. 14. ISSN 2277-9175 (Print) 2277-9175 (Linking)

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Abstract

Background: Both microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) have been shown to have a critical role in the regulation of cellular processes such as cell growth and apoptosis, as well as cancer progression and metastasis. lncRNAs are aberrantly expressed in many diseases including cancer. Although it is well known that miRNAs can target a large number of protein-coding genes, little is known whether miRNAs can also target lncRNAs. In the present study, we determine whether miR-21 can regulate lncRNA cancer susceptibility candidate 2 (CASC2) in colorectal cancer. Materials and Methods: LS174T cells were transfected with locked nucleic acid (LNA)-anti-miR-21 and scrambled LNA for 24, 48 and 72 h. The expression of miR-21 and lncCASC2 was evaluated by quantitative reverse transcriptase polymerase chain reaction. Results: However, contrary to what we expected and reported by others, lncCASC2 quantity was significantly reduced in LNA treated LS174T cells compared to the scrambled treated and normal untreated cells (P < 0.05). Conclusion: The interaction of miRNA and lncRNA are not as simple as suggested by other reports. Moreover, it could be complex molecular mechanisms underlying the communication of various noncoding RNA elements.

Item Type: Article
Keywords: Cancer susceptibility candidate 2 gene colorectal cancer long noncoding RNAs microRNA
Divisions: Acquired Immunodeficiency Research Center
Faculty of Medicine > Department of Basic Science > Department of Molecular Medicine and Genetics
Page Range: p. 14
Journal or Publication Title: Adv Biomed Res
Journal Index: Pubmed
Volume: 7
Identification Number: https://doi.org/10.4103/abr.abr₂₁₄₁₆
ISSN: 2277-9175 (Print) 2277-9175 (Linking)
Depositing User: Zahra Otroj
URI: http://eprints.mui.ac.ir/id/eprint/8013

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