Targeting Src and tubulin in mucinous ovarian carcinoma

Tao Liu, Wei Hu, Heather J. Dalton, Hyun Jin Choi, Jie Huang, Yu Kang, Sunila Pradeep, Takahito Miyake, Jian H. Song, Yunfei Wen, Chunhua Lu, Chad V. Pecot, Justin Bottsford-Miller, Behrouz Zand, Nicholas B. Jennings, Cristina Ivan, Gary E. Gallick, Keith A. Baggerly, David G. Hangauer, Robert L. ColemanMichael Frumovitz, Anil K. Sood

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Purpose: To investigate the antitumor effects of targeting Src and tubulin in mucinous ovarian carcinoma. Experimental Design: Thein vitro and invivo effects and molecular mechanisms of KX-01, which inhibits Src pathway and tubulin polymerization, were examined in mucinous ovarian cancer models. Results: In vitro studies using RMUG-S and RMUG-L cell lines showed that KX-01 inhibited cell proliferation, induced apoptosis, arrested the cell cycle at the G2-M phase, and enhanced the cytotoxicity of oxaliplatin in the KX-01-sensitive cell line, RMUG-S. In vivo studies showed that KX-01 significantly decreased tumor burden in RMUG-S and RMUG-L mouse models relative to untreated controls, and the effects were greater when KX-01 was combined with oxaliplatin. KX-01 alone and in combination with oxaliplatin significantly inhibited tumor growth by reducing cell proliferation and inducing apoptosis in vivo. PTEN knock-in experiments in RMUG-L cells showed improved response to KX-01. Reverse phase protein array analysis showed that in addition to blocking downstream molecules of Src family kinases, KX-01 also activated acute stress-inducing molecules. Conclusion: Our results showed that targeting both the Src pathway and tubulin with KX-01 significantly inhibited tumor growth in preclinical mucinous ovarian cancer models, suggesting that this may be a promising therapeutic approach for patients with mucinous ovarian carcinoma.

Original languageEnglish (US)
Pages (from-to)6532-6543
Number of pages12
JournalClinical Cancer Research
Volume19
Issue number23
DOIs
StatePublished - Dec 1 2013

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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