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Dishevelled-2 silencing reduces androgen-dependent prostate tumor cell proliferation and migration and expression of Wnt-3a and matrix metalloproteinases

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Abstract

To identify Dishevelled-2 (Dvl2) is a prostate cancer-associated gene and analyze the effects on the growth and invasive capacity of human prostate cancer (PCa) cells. Dvl2 mRNA expression was measured in PCa cell lines and tissue samples, by real-time reverse transcription PCR (qRT-PCR). Immunohistochemistry was used to examine the distribution of Dvl2 in PCa specimens. Silencing Dvl2 in LNCaP cells, proliferation was measured by the CCK-8 assay, cell motility and invasiveness by scratch wound and transwell migration assays, and Wnt-3a, AR, and matrix metalloproteinase (MMP) expression by western blotting. Dvl2 was overexpressed in LNCaP cells compared with the AI PCa lines DU-145 and PC-3, as well as in the majority of PCa tissue specimens examined by qRT-PCR (14/27, 51.9 %). Dvl2 expression was low in all 10 BPH specimens, weakly positive in 26/104 AD PCa specimens (23.8 %), positive in 60/104 AD PCa specimens (55 %), and strongly positive in all 5 AI PCa specimens. Dvl2 expression was significantly correlated with combined Gleason score (p = 0.02), lymph node metastasis (p = 0.005), and TNM stage (p = 0.015). Silencing of Dvl2 mRNA expression significantly reduced LNCaP cell proliferation, motility, invasiveness and Wnt-3a, AR, MMP-2, and MMP-9 expression. Dvl2 may increase PCa growth and metastasis potential, possibly by upregulating Wnt-3a, AR, and MMP expression. Silencing Dvl2 expression may be an effective treatment strategy for PCa.

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Acknowledgments

We are very grateful to Prof. Yongwei Yu and Canrong Ni for pathological and IHC analyses (Department of pathology, Changhai Hospital, Second Military Medical University). This work was supported by grants from the National Natural Science Foundation of China. Grant Number: 30872562, 81172448, 81202036.

Conflict of interest

The authors declare that they have no competing interests.

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Authors and Affiliations

  1. Department of Urology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, People’s Republic of China

    Yinhui Yang, Li Jiao, Jianguo Hou, Chuanliang Xu, Linhui Wang, Yun Li, Chun Yang & Yinghao Sun

  2. Department of Pathology Changhai Hospital, Second Military Medical University, Shanghai, People’s Republic of China

    Yongwei Yu

  3. Department of Medical Information, Second Military Medical University, Shanghai, People’s Republic of China

    Xia Wang

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  1. Yinhui Yang
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  2. Li Jiao
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  3. Jianguo Hou
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  4. Chuanliang Xu
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  5. Linhui Wang
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  7. Yun Li
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  9. Xia Wang
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  10. Yinghao Sun
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Correspondence to Yinhui Yang.

Additional information

Yinhui Yang, Li Jiao and Jianguo Hou are contributed equally to this work

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Yang, Y., Jiao, L., Hou, J. et al. Dishevelled-2 silencing reduces androgen-dependent prostate tumor cell proliferation and migration and expression of Wnt-3a and matrix metalloproteinases. Mol Biol Rep 40, 4241–4250 (2013). https://doi.org/10.1007/s11033-013-2506-6

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  • DOI: https://doi.org/10.1007/s11033-013-2506-6

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