Abstract
PFTK1 was a cell division cycle 2-related serine/threonine protein kinase, which was up-regulated in breast cancer tissues and breast cancer lines. And up-regulated PFTK1 was highly associated with grade, axillary lymph node status, and Ki-67. Moreover, Kaplan–Meier curve showed that up-regulated PFTK1 was related to the poor breast carcinoma patients’ overall survival. Here, we first discovered and confirmed that cyclin B was a new interacting protein of PFTK1, and the complex might increase the amount of DVL2, which triggers Wnt/β-catenin signaling pathway. Furthermore, knockdown of PFTK1 attenuated cell proliferation, anchorage-independent cell growth, and cell migration and invasion by inhibiting the transcriptional activation of β-catenin for cyclin D1, MMP9, and HEF1, whereas exogenous expression of PFTK1 might promote MDA-MB-231 cells proliferation, migration, and invasion via promoting PFTK1–DVL2–β-catenin axis. Our findings supported the notion that up-regulated PFTK1 might promote breast cancer progression and metastasis by activating Wnt signaling pathway through the PFTK1–DVL2–β-catenin axis.
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This study was funded by the National Natural Science Foundation of China Grants (Nos. 81302285, 81472185).
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The authors declare that they have no conflict of interest.
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Xiaoling Gu and Yingying Wang have contributed equally to this work.
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Gu, X., Wang, Y., Wang, H. et al. Upregulated PFTK1 promotes tumor cell proliferation, migration, and invasion in breast cancer. Med Oncol 32, 195 (2015). https://doi.org/10.1007/s12032-015-0641-8
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DOI: https://doi.org/10.1007/s12032-015-0641-8