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    Molecular targeting of the Aurora-A/SMAD5 oncogenic axis restores chemosensitivity in human breast cancer cells

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    Author
    Opyrchal, Mateusz; Gil, Malgorzata; Salisbury, Jeffrey L.; Goetz, Mathew P.; Suman, Vera; Degnim, Amy; McCubrey, James; Haddad, Tufia; Iankov, Ianko; Kurokawa, Chenye B.; Shumacher, Nicole; Ingle, James N.; Galanis, Evanthia; D’Assoro, Antonino B.
    Abstract
    Although the majority of breast cancers initially respond to the cytotoxic effects of chemotherapeutic agents, most breast cancer patients experience tumor relapse and ultimately die because of drug resistance. Breast cancer cells undergoing epithelial to mesenchymal transition (EMT) acquire a CD44+/CD24-/ ALDH1+ cancer stem cell-like phenotype characterized by an increased capacity for tumor self-renewal, intrinsic drug resistance and high proclivity to develop distant metastases. We uncovered in human breast tumor xenografts a novel non-mitotic role of Aurora-A kinase in promoting breast cancer metastases through activation of EMT and expansion of breast tumor initiating cells (BTICs). In this study we characterized the role of the Aurora-A/SMAD5 oncogenic axis in the induction of chemoresistance. Breast cancer cells overexpressing Aurora-A showed resistance to conventional chemotherapeutic agents, while treatment with alisertib, a selective Aurora-A kinase inhibitor, restored chemosensitivity. Significantly, SMAD5 expression was required to induce chemoresistance and maintain a breast cancer stem cell-like phenotype, indicating that the Aurora-A/SMAD5 oncogenic axis promotes chemoresistance through activation of stemness signaling. Taken together, these findings identified a novel mechanism of drug resistance through aberrant activation of the non-canonical Aurora-A/SMAD5 oncogenic axis in breast cancer.
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    http://hdl.handle.net/10342/8253
    Date
    2017-09-01
    Citation:
    APA:
    Opyrchal, Mateusz, & Gil, Malgorzata, & Salisbury, Jeffrey L., & Goetz, Mathew P., & Suman, Vera, & Degnim, Amy, & McCubrey, James, & Haddad, Tufia, & Iankov, Ianko, & Kurokawa, Chenye B., & Shumacher, Nicole, & Ingle, James N., & Galanis, Evanthia, & D’Assoro, Antonino B.. (September 2017). Molecular targeting of the Aurora-A/SMAD5 oncogenic axis restores chemosensitivity in human breast cancer cells. Oncotarget, (8:53), p.91803-91816. Retrieved from http://hdl.handle.net/10342/8253

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    MLA:
    Opyrchal, Mateusz, and Gil, Malgorzata, and Salisbury, Jeffrey L., and Goetz, Mathew P., and Suman, Vera, and Degnim, Amy, and McCubrey, James, and Haddad, Tufia, and Iankov, Ianko, and Kurokawa, Chenye B., and Shumacher, Nicole, and Ingle, James N., and Galanis, Evanthia, and D’Assoro, Antonino B.. "Molecular targeting of the Aurora-A/SMAD5 oncogenic axis restores chemosensitivity in human breast cancer cells". Oncotarget. 8:53. (91803-91816.), September 2017. August 09, 2022. http://hdl.handle.net/10342/8253.
    Chicago:
    Opyrchal, Mateusz and Gil, Malgorzata and Salisbury, Jeffrey L. and Goetz, Mathew P. and Suman, Vera and Degnim, Amy and McCubrey, James and Haddad, Tufia and Iankov, Ianko and Kurokawa, Chenye B. and Shumacher, Nicole and Ingle, James N. and Galanis, Evanthia and D’Assoro, Antonino B., "Molecular targeting of the Aurora-A/SMAD5 oncogenic axis restores chemosensitivity in human breast cancer cells," Oncotarget 8, no. 53 (September 2017), http://hdl.handle.net/10342/8253 (accessed August 09, 2022).
    AMA:
    Opyrchal, Mateusz, Gil, Malgorzata, Salisbury, Jeffrey L., Goetz, Mathew P., Suman, Vera, Degnim, Amy, McCubrey, James, Haddad, Tufia, Iankov, Ianko, Kurokawa, Chenye B., Shumacher, Nicole, Ingle, James N., Galanis, Evanthia, D’Assoro, Antonino B.. Molecular targeting of the Aurora-A/SMAD5 oncogenic axis restores chemosensitivity in human breast cancer cells. Oncotarget. September 2017; 8(53) 91803-91816. http://hdl.handle.net/10342/8253. Accessed August 09, 2022.
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