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China Oncology ; (12): 320-325, 2016.
Article Dans Chinois | WPRIM | ID: wpr-490031

Résumé

Background and purpose:Long non-coding RNA (lncRNA) could be an important player in cancer biology. Recent studies showed that lncRNA PCGEM1 might be important in the regulation of androgen recep-tor (AR) signaling pathway. We tried to observe the expressions of lncRNA PCGEM1 and AR in prostate cancer, and investigate their role and signiifcance in prostate cancer genesis and progress.Methods:The expression of lncRNA PCGEM1 was observed in prostate cancer by lfuorescencein situ hybridization (FISH) technique. Then detection of AR was performed by immunolfuorescence histochemistry methods. Their co-effective role was checked by RNA pull-down technique.Results:Compared with the AR-independent cell line such as PC3 or DU145, AR-dependent cell line such as LNCaP showed much higher expression of lncRNA PCGEM1 (P<0.01). PCGEM1 and AR could be co-localized in most of these prostate cancer samples, especially in the metastasis samples. Moreover, androgen deprivation promoted the translocation of PCGEM1 into nucleus. RNA pull-down results also proved the co-effective role of PCGEM1 and AR.Conclusion:This study showed that lncRNA PCGEM1 was highly expressed in metastatic prostate cancer. It was related to the progress and malignant behavior of the prostate cancer. Its co-localization with AR may play an important role in prostate cancer genesis and progress.

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