| β-Elemene Effectively Suppresses the Growth and Survival of Both Platinum-sensitive and -resistant Ovarian Tumor Cells. | |
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MedLine Citation:
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PMID: 22843880 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The development of cisplatin drug resistance remains a chief concern in ovarian cancer chemotherapy. β-Elemene is a natural plant product with broad-spectrum antitumor activity towards many types of carcinomas. This study aimed to define the biological and therapeutic significance of β-elemene in chemoresistant ovarian cancer. In the present study, β-elemene significantly inhibited cell growth and proliferation of both the cisplatin-sensitive human ovarian cancer cell line A2780 and its cisplatin-resistant counterpart A2780/CP. β-Elemene also suppressed the growth of several other chemosensitive and chemoresistant ovarian cancer cell lines, including ES-2, MCAS, OVCAR-3, and SKOV-3, with the half maximal inhibitory concentration (IC(50)) values ranging from 54 to 78 μg/ml. In contrast, the IC(50) values of β-elemene for the human ovarian epithelial cell lines IOSE-386 and IOSE-397 were 110 and 114 μg/ml, respectively, which are almost two-fold those for the ovarian cancer cell lines. Cell cycle analysis demonstrated that β-elemene induced a persistent block of cell cycle progression at the G(2)/M phase in A2780 and A2780/CP cells. This was mediated by alterations in cyclin and cyclin-dependent kinase expression, including the down-regulation of CDC2, cyclin A, and cyclin B1, and the up-regulation of p21(WAF1/CIP1) and p53 proteins. Moreover, β-elemene triggered apoptosis and irreversible cell death in both sensitive and resistant ovarian cancer cells via the activation of caspase-3, -8 and 9; the loss of mitochondrial membrane potential (δΨm); the release of cytochrome c into the cytosol; and changes in the expression of BCL-2 family proteins. All of these molecular changes were associated with β-elemene-induced growth inhibition and cell death of ovarian cancer cells. Our results demonstrate that β-elemene has antitumor activity against both platinum-sensitive and resistant ovarian cancer cells, and thus has the potential for development as a chemotherapeutic agent for cisplatin-resistant ovarian cancer. |
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Authors:
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Rebecca X Lee; Qingdi Quentin Li; Eddie Reed |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Anticancer research Volume: 32 ISSN: 1791-7530 ISO Abbreviation: Anticancer Res. Publication Date: 2012 Aug |
Date Detail:
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Created Date: 2012-07-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8102988 Medline TA: Anticancer Res Country: Greece |
Other Details:
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Languages: eng Pagination: 3103-13 Citation Subset: IM |
Affiliation:
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National Institutes of Health, Building 10, Room 11N234, Bethesda, MD 20892-1888, U.S.A. liquenti@mail.nih.gov. |
Export Citation:
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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