Recurrence of Cervical Cancer in Mice after Selective Estrogen Receptor Modulator Therapy

dc.contributor.authorSpurgeon, Megan E.
dc.contributor.authorChung, Sang-Hyuk
dc.contributor.authorLambert, Paul F.
dc.date.accessioned2020-03-10T17:12:03Z
dc.date.available2020-03-10T17:12:03Z
dc.date.issued1/11/2014
dc.description.abstractEstrogen and its nuclear receptor, estrogen receptor ?, are necessary cofactors in the initiation and multistage progression of carcinogenesis in the K14E6/E7 transgenic mouse model of human papillomavirus–associated cervical cancer. Recently, our laboratory reported that raloxifene, a selective estrogen receptor modulator, promoted regression of high-grade dysplasia and cancer that arose in the cervix of K14E6/E7 transgenic mice treated long-term with estrogen. Herein, we evaluated the recurrence of cervical cancer after raloxifene therapy in our preclinical model of human papillomavirus–associated cervical carcinogenesis. We observed recurrence of cervical cancer in mice re-exposed to estrogen after raloxifene treatment, despite evidence suggesting the antagonistic effects of raloxifene persisted in the reproductive tract after treatment had ceased. We also observed recurrence of neoplastic disease in mice that were not retreated with exogenous estrogen, although the severity of disease was less. Recurrent neoplastic disease and cancers retained functional estrogen receptor ? and responded to retreatment with raloxifene. Moreover, continuous treatment of mice with raloxifene prevented the emergence of recurrent disease seen in mice in which raloxifene was discontinued. These data suggest that cervical cancer cells are not completely eradicated by raloxifene and rapidly expand if raloxifene treatment is ceased. These findings indicate that a prolonged treatment period with raloxifene might be required to prevent recurrence of neoplastic disease and lower reproductive tract cancers.
dc.identifier.citationCopyright 2014 The American Journal of Pathology. Recommended citation: Spurgeon, Megan E., Sang-Hyuk Chung, and Paul F. Lambert. "Recurrence of cervical cancer in mice after selective estrogen receptor modulator therapy." The American journal of pathology 184, no. 2 (2014): 530-540. DOI: 10.1016/j.ajpath.2013.10.013. URL: https://www.sciencedirect.com/science/article/pii/S0002944013007256. Reproduced in accordance with the original publisher's licensing terms and with permission from the author(s).
dc.identifier.urihttps://hdl.handle.net/10657/5927
dc.language.isoen_US
dc.publisherAmerican Journal of Pathology
dc.subjectrecurrence
dc.subjectcervical cancer
dc.subjectmice
dc.subjectestrogen receptor
dc.subjectmodulator therapy
dc.subjectestrogen
dc.subjectcarcinogenesis
dc.subjecthuman papillomavirus
dc.subjectHPV
dc.titleRecurrence of Cervical Cancer in Mice after Selective Estrogen Receptor Modulator Therapy
dc.typeArticle

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