ABSTRACT
OBJECTIVE: To investigate the effects of miR-519d on the proliferation, cycle and invasion of human prostate cancer PC3 cells and its possible molecular mechanism. MATERIALS AND METHODS: The proliferation, cycle, and invasion of human prostate cancer PC3 cells were detected via cell counting kit-8 (CCK-8) and transwell assay. The expression of NRBP1 mRNA was detected via reverse transcription-polymerase chain reaction (RT-PCR). Western blotting was used to detect the expression of NRBP1, cyclin D1, and epithelial-mesenchymal transition (EMT) markers. RESULTS: The expression of miR-519d in prostate cancer was decreased, which was correlated with tumor size, metastasis, and staging. Proliferation, cycle, and invasion of PC3 cells were significantly decreased after overexpression of miR-519d. Bioinformatics analysis and Western blotting showed that there was a potential miR-519d binding site in NRBP1 3'-UTR, and overexpression of miR-519d significantly inhibited the expression of NRBP1. The expression of E-cadherin in PC3 cells overexpressing miR-519d was up-regulated, and the expressions of N-cadherin, cyclin D1, vimentin, fibronectin, and Snail were down-regulated. CONCLUSIONS: MiR-519d can repress the proliferation, cycle, and invasion of prostate cancer PC3 cells by inhibiting NRBP1.
Subject(s)
Cell Cycle/genetics , Cell Proliferation/genetics , MicroRNAs/genetics , Prostatic Neoplasms/genetics , Receptors, Cytoplasmic and Nuclear/genetics , Vesicular Transport Proteins/genetics , Antigens, CD/genetics , Cadherins/genetics , Cell Culture Techniques , Down-Regulation , Epithelial-Mesenchymal Transition/genetics , Gene Expression Regulation, Neoplastic , Humans , Male , Middle Aged , Neoplasm Invasiveness , PC-3 Cells , Prostatic Neoplasms/pathology , Up-RegulationABSTRACT
This study examined the attitudes of scientists in Taiwan's leading animal research institution toward xenotransplantation. The aim was primarily to evaluate the opinions of professionals in the biomedical field on key issues including ethical moral, legal, and regulatory issues raised by the biotechnology. A secondary objective was to identify potential factors that influenced opinions. A questionnaire-based survey was used to evaluate opinions. A test for internal consistency of the questionnaires to sample of 91 scientists was performed as well as a principal component analysis. We evaluated associations between variables using the nonparametric Kruskal-Wallis test. Among the subjects 85.2% thought that xenotransplantation can be more beneficial than harmful to human society and 94.3% believed that it is important to develop xenotransplantation. Also, 97.8% of participants believed that legislative guidelines should be adopted to regulate research in biotechnology. Gender was an influencing factor, whereas, variables such as religion, marital status, and age did not have obvious effects. Further studies on the general public are needed to detect other factors and to examine the attitude of nonprofessionals toward xenotransplantation.
