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Updated: Jul 31, 2025

Long-term Live-cell Imaging to Assess Cell Fate in Response to Paclitaxel
08:29

Long-term Live-cell Imaging to Assess Cell Fate in Response to Paclitaxel

Published on: May 14, 2018

10.0K

IMPA2 blocks cervical cancer cell apoptosis and induces paclitaxel resistance through p53-mediated AIFM2 regulation

Kexin Xie, Lei Liu, Min Wang

    Acta Biochimica Et Biophysica Sinica
    |May 4, 2023
    PubMed

    Insights

    The IMPA2 gene regulates cervical cancer cell apoptosis and paclitaxel resistance. Silencing IMPA2 or AIFM2 activates p53, enhancing chemosensitivity. This IMPA2/AIFM2/p53 pathway offers a new therapeutic target for cervical cancer.

    Area of Science:

    • Oncology
    • Molecular Biology
    • Cell Biology

    Background:

    • Cervical cancer, particularly locally advanced stages, has a poor prognosis.
    • The IMPA2 gene is a potential oncogene involved in tumor apoptosis regulation.
    • Understanding IMPA2's role in cervical cancer apoptosis is crucial for developing new treatments.

    Purpose of the Study:

    • To elucidate the mechanisms by which IMPA2 regulates apoptosis in cervical cancer.
    • To identify downstream targets and pathways influenced by IMPA2.
    • To explore the potential of targeting IMPA2 for enhancing cervical cancer treatment sensitivity.

    Main Methods:

    • Gene silencing techniques (IMPA2, AIFM2 knockdown).
    • Apoptosis assays, including assessment of mitochondrial membrane potential and intracellular Ca2+ levels.
    • Western blotting to analyze protein expression (p53).
    • STRING database analysis and experimental validation.

    Main Results:

    • AIFM2 was identified as upregulated in IMPA2-silenced cells; its inhibition reversed IMPA2 knockdown-induced apoptosis.
    • AIFM2 regulates apoptosis via a mitochondrial-dependent pathway.
    • IMPA2 and AIFM2 silencing inhibited apoptosis by activating p53.
    • IMPA2 knockdown enhanced chemosensitivity to paclitaxel by increasing apoptosis.

    Conclusions:

    • The IMPA2/AIFM2/p53 pathway represents a novel molecular mechanism in paclitaxel treatment for cervical cancer.
    • Targeting IMPA2 can enhance cervical cancer cell sensitivity to paclitaxel.
    • IMPA2's novel function in regulating apoptosis and paclitaxel resistance, mediated by AIFM2 and p53, presents a potential therapeutic target for cervical cancer.
    Keywords:
    apoptosiscervical cancerpaclitaxel

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