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Cisplatin binds to pre-miR-200b and impairs its processing to mature microRNA

R Mezencev, R M Wartell

    Neoplasma
    |March 15, 2018
    PubMed

    Insights

    Cisplatin modifies precursor microRNA-200b (pre-miR-200b) in ovarian cancer cells, reducing mature miR-200b levels. This interaction may impact the drug

    Area of Science:

    • Oncology
    • Molecular Biology
    • Biochemistry

    Background:

    • Cisplatin is a widely used chemotherapy agent.
    • Its primary target is genomic DNA, but other biomolecules may also be involved.
    • MicroRNAs (miRNAs) play roles in gene regulation and cancer progression.

    Purpose of the Study:

    • To investigate the effect of cisplatin on precursor microRNA-200b (pre-miR-200b) in ovarian cancer cells.
    • To determine if cisplatin affects the processing of pre-miR-200b into mature miR-200b.
    • To explore the implications of these findings for cisplatin's anticancer activity.

    Main Methods:

    • Ovarian cancer cells were treated with cisplatin.
    • Levels of pre-miR-200b and mature miR-200b were measured.
    • The processing of pre-miR-200b was assessed.

    Main Results:

    • Cisplatin treatment led to the modification of pre-miR-200b.
    • The processing of pre-miR-200b into mature miR-200b was impaired.
    • Mature miR-200b expression was decreased in ovarian cancer cells.

    Conclusions:

    • Cisplatin targets pre-miR-200b, affecting mature miR-200b levels.
    • This interaction may influence cisplatin's efficacy in ovarian cancer.
    • Precursor miRNAs could be novel targets for anticancer drugs.
    Keywords:
    cisplatinmicroRNApre-miRNAtransplatin miR-200.

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