TY - JOUR ID - 9598 TI - The effects of specific expression of apoptin under the control of PSES and PSA promoter on cell death and apoptosis of LNCaP cells JO - Iranian Journal of Basic Medical Sciences JA - IJBMS LA - en SN - 2008-3866 AU - Mohammadi, Vida AU - Behzad Behbahani, Abbas AU - Rafiee, Gholam Reza AU - Hosseini, Seyed Younes AU - Alizadeh Zarei, Marzieh AU - Okhovat, Mohammad Ali AU - Takhshid, Mohammad Ali AD - Department of Medical Biotechnology, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran AD - Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran Y1 - 2017 PY - 2017 VL - 20 IS - 12 SP - 1354 EP - 1359 KW - Apoptin protein KW - Apoptosis KW - Prostate-specific antigen KW - Prostate-specific membrane antigen KW - Prostate cancer DO - 10.22038/ijbms.2017.9598 N2 - Objective(s): Apoptotic effect of apoptin has been demonstrated in numerous studies. However, its tumor specificity has been questioned by some reports. The aim of this study was to confine the expression of apoptin in the prostate tumor cells by inducing its gene expression under the control of a chimeric enhancer composing of prostate-specific membrane antigen (PSMA) and prostate-specific antigen (PSA) regulatory elements (PSES). Furthermore, we investigated the effects of apoptin expression on LNCaP prostate carcinoma cell survival and apoptosis using MTT assay and annexinV/7-AAD flow cytometry assay. Materials and Methods: Recombinant plasmids containing apoptin gene under the control of PSES/PSA promoter or Cytomegalovirus (CMV) promoter were constructed. Tumor cell lines including LNCaP cells and HeLa cells, and LX-2 cells (as a normal control) were transfected with the plasmids and the expression of apoptin was evaluated by real time-PCR and western blot analyses. The effects of apoptin expression on cell survival and apoptosis were then investigated using MTT and annexinV/7-AAD flow cytometry assay, respectively. Results: Western blot and real time PCR analyses confirmed the specific expression of apoptin under the control of PSES/PSA regulatory element in the LNCaP cells, while CMV promoter caused apoptin expression in both tumor and normal cell lines. Apoptin expression significantly increased cell death and apoptosis in tumor cells when compared with the normal cells (P<0.001). Conclusion: These results suggest that PSES/PSA regulatory element may be considered as an efficient approach for specific expression of apoptin gene in prostate tumor cells and treatment of prostate cancer. UR - https://ijbms.mums.ac.ir/article_9598.html L1 - https://ijbms.mums.ac.ir/article_9598_df180c7c40d495721177a9a466fa59bf.pdf ER -