Cited by 74MicroRNA in disease regulationCancer-related molecular mechanisms researchCancer-related Molecular Pathways

MicroRNA-182 modulates chemosensitivity of human non-small cell lung cancer to cisplatin by targeting PDCD4

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Ning, Fang-ling, Wang, Feng, Li, Mian-li, Yu, Ze-shun, Hao, Yan-zhang, Chen, Shao-shui·2014·Diagnostic Pathology

Abstract

BACKGROUND: Overexpression of microRNA-182 (miR-182) is found in various human cancers, including non-small cell lung cancer (NSCLC). Our aim is to investigate the association of miR-182 expression with the sensitivity of NSCLC to cisplatin. METHODS: TaqMan RT-PCR or Western blot assay was performed to detect the expression of mature miR-182 and programmed cell death 4 (PDCD4) protein. miR-182 and (or) PDCD4 depleted cell lines were generated using miR-182 inhibitor and (or) siRNA. The viabilities of treated cells were analyzed using MTT assay. RESULTS: The expression level of miR-182 in A549 cell line was significantly higher than that in NHBE cell line (p < 0.01). Transfection of miR-182 inhibitor induced sensitivity of A549 cells to cisplatin. A549 cells transfected with PDCD4 siRNA became more resistant to cisplatin therapy. We found an increase PDCD4 protein level following the transfection of miR-182 inhibitor using Western blot analysis. In addition, the enhanced growth-inhibitory effect by miR-182 inhibitor was weakened after the addition of PDCD4 siRNA. CONCLUSIONS: The results of the present study demonstrated that overexpression of miR-182 may involve in chemoresistance of NSCLC cells to cisplatin by down-regulating PDCD4. VIRTUAL SLIDES: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1793467320130186.

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  • Besides miR21, many other microRNAs such as miR182, miR16, miR150, and miR499 target PDCD4 mRNA down-regulating PDCD4 expression in different cellular systems.

    “Besides miR21, many other kinds of microRNA such as miR182, miR16, miR150, miR499 and other microRNAs has been shown to target the PDCD4 mRNA down-regulating PDCD4 expression in different cellular systems [58,59,60,61].”

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Authors
Ning, F.-L., Wang, F., Li, M.-L., Yu, Z.-S., Hao, Y.-Z., & Chen, S.-S.
Affiliations
Binzhou Medical University (CN)
Venue
Diagnostic Pathology
Published
2014-07-10
Volume
9
Issue
1
Pages
143-143
ISSN
1746-1596 (ISSN-L)
OpenAlex
W2126940189
Cited by
74
References
31
Citations by year
2025: 2 · 2024: 2 · 2023: 8 · 2022: 9 · 2021: 13 · 2020: 5 · 2019: 5 · 2018: 8 · 2017: 10 · 2016: 7 · 2015: 4 · 2014: 1
FWCI
2.35
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Diagnostic Pathology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer-related molecular mechanisms research
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
Keywords
microRNA-182, PDCD4, non-small cell lung cancer, cisplatin, chemoresistance, chemosensitivity, miRNA inhibitors, A549 cells, cell viability
MeSH terms
Antineoplastic Agents, Carcinoma, Non-Small-Cell Lung, Cisplatin, Humans, Lung Neoplasms, Blotting, Western, Gene Expression Regulation, Neoplastic, RNA-Binding Proteins, Drug Resistance, Neoplasm, Reverse Transcriptase Polymerase Chain Reaction, MicroRNAs, Cell Line, Tumor, Apoptosis Regulatory Proteins, Real-Time Polymerase Chain Reaction

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