Peptide and lipid growth factors decrease cis-diamminedichloroplatinum- induced cell death in human ovarian cancer cells

Andrea Frankel, Gordon B. Mills

    Research output: Contribution to journalArticle

    66 Scopus citations

    Abstract

    Growth factors have been demonstrated to regulate the proliferation and viability of a number of cell lineages. Because most drugs used in chemotherapy kill cells through programmed cell death, by the process of apoptosis, we determined whether growth factors, specifically epidermal growth factor (EGF) and lysophosphatidic acid (LPA), which we have demonstrated recently to be a potent growth factor for ovarian cancer cells, would alter the ability of cis-diamminedichloroplatinum (cis-DDP), the most effective chemotherapeutic agent for ovarian cancer, to kill the HEY ovarian cancer cell line. We demonstrate that both EGF and LPA decrease the ability of cis-DDP to kill HEY ovarian cancer cells as assessed by colony-forming cell activity and dye reduction. Morphological changes, DNA release, and electron microscopy suggested that LPA and EGF protect ovarian cancer cells from programmed cell death induced by cis-DDP. Because LPA is present in high levels in ascitic fluid from ovarian cancer patients, and the EGF receptor is expressed by tumor cells from a significant portion of patients where it correlates with prognosis, growth factor modulation of cis-DDP-induced apoptosis may play a role in the poor prognosis associated with ovarian cancer.

    Original languageEnglish (US)
    Pages (from-to)1307-1313
    Number of pages7
    JournalClinical Cancer Research
    Volume2
    Issue number8
    StatePublished - Aug 1 1996

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    ASJC Scopus subject areas

    • Oncology
    • Cancer Research

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