Mol Med Rep 2014 Jun 01;96:2347-51. doi: 10.3892/mmr.2014.2106.

TPX2 regulates tumor growth in human cervical carcinoma cells.

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The targeting protein for the Xenopus kinesin-like protein 2 (TPX2), a microtubule-associated protein, has been utilized as a tool to evaluate, more precisely, the proliferative behavior of tumor cells. The abnormal expression of TPX2 in a variety of malignant tumor types has been reported, however less is known about its role in cervical cancer. In the present study, the association between TPX2 expression and the biological behavior of cervical cancer, was investigated. Immunohistochemistry and RT-PCR were used to detect the expression of TPX2 in cervical cancer tissues. The inhibitory effect of TPX2-siRNA on the growth of SiHa human cervical carcinoma cells was studied in vitro. TPX2 expression was identified as significantly higher in cervical carcinoma compared with the control, normal cervical tissues. TPX2 siRNA transfected into SiHa cells induced apoptosis and inhibited cell proliferation and invasion. Similar results were obtained by in vivo transplantation, as TPX2 siRNA transfection significantly reduced tumor growth of the xenograft in nude mice. The results demonstrated that TPX2 is important in the regulation of tumor growth in cervical cancer and therefore may be a potential therapeutic target as a novel treatment strategy.

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Species referenced: Xenopus
Genes referenced: tpx2