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- W4361948696 abstract "<div>Abstract<p><b>Purpose:</b> The Aurora kinase family plays pivotal roles in mitotic integrity and cell cycle. We sought to determine the effects of inhibiting Aurora kinase on ovarian cancer growth in an orthotopic mouse model using a small molecule pan-Aurora kinase inhibitor, MK-0457.</p><p><b>Experimental Design:</b> We examined cell cycle regulatory effects and ascertained the therapeutic efficacy of Aurora kinase inhibition both alone and combined with docetaxel using both <i>in vitro</i> and <i>in vivo</i> ovarian cancer models.</p><p><b>Results:</b><i>In vitro</i> cytotoxicity assays with HeyA8 and SKOV3ip1 cells revealed >10-fold greater docetaxel cytotoxicity in combination with MK-0457. After <i>in vivo</i> dose kinetics were determined using phospho-histone H3 status, therapy experiments with the chemosensitive HeyA8 and SKOV3ip1 as well as the chemoresistant HeyA8-MDR and A2780-CP20 models showed that Aurora kinase inhibition alone significantly reduced tumor burden compared with controls (<i>P</i> values < 0.01). Combination treatment with docetaxel resulted in significantly improved reduction in tumor growth beyond that afforded by docetaxel alone (<i>P</i> ≤ 0.03). Proliferating cell nuclear antigen immunohistochemistry revealed that MK-0457 alone and in combination with docetaxel significantly reduced cellular proliferation (<i>P</i> values < 0.001). Compared with controls, treatment with MK-0457 alone and in combination with docetaxel also significantly increased tumor cell apoptosis by ∼3-fold (<i>P</i> < 0.01). Remarkably, compared with docetaxel monotherapy, MK-0457 combined with docetaxel resulted in significantly increased tumor cell apoptosis.</p><p><b>Conclusions:</b> Aurora kinase inhibition significantly reduces tumor burden and cell proliferation and increases tumor cell apoptosis in this preclinical orthotopic model of ovarian cancer. The role of Aurora kinase inhibition in ovarian cancer merits further investigation in clinical trials.</p></div>" @default.
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- W4361948696 date "2023-03-31" @default.
- W4361948696 modified "2023-10-15" @default.
- W4361948696 title "Data from Targeting Aurora Kinase with MK-0457 Inhibits Ovarian Cancer Growth" @default.
- W4361948696 doi "https://doi.org/10.1158/1078-0432.c.6516907.v1" @default.
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