hTERT and BIRC5 gene promoters for cancer gene therapy: A comparative study

  • Authors:
    • Mikhail V. Shepelev
    • Eugene P. Kopantzev
    • Tatiana V. Vinogradova
    • Eugene D. Sverdlov
    • Igor V. Korobko
  • View Affiliations

  • Published online on: June 15, 2016     https://doi.org/10.3892/ol.2016.4718
  • Pages: 1204-1210
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Abstract

Human telomerase reverse transcriptase (hTERT) and survivin (BIRC5) gene promoters are frequently used for transcriptional targeting of tumor cells, yet there is no comprehensive comparative analysis allowing rational choice of a promoter for a particular therapy. In the current study, the transcriptional activity of hTERT, human BIRC5 and mouse Birc5 promoters and their modifications were compared in 10 human cancer cell lines using the luciferase reporter gene activity assay. The results revealed that BIRC5‑ and hTERT‑based promoters had strikingly different cell specificities with comparable activities in only 40% of cell lines. Importantly, relative hTERT and BIRC5 transcript abundance cannot be used to predict the most potent promoter. Among the hTERT‑based promoters that were assessed, modification with the minimal cytomegalovirus promoter generally resulted in the most potent activity. Mouse Birc5 and modified human BIRC5 promoters were superior to the unmodified human survivin promoter; however, their tumor specificities must be investigated further. In summary, the present results emphasize the desirability for construction of more universal tumor-specific promoters to efficiently target a wide spectrum of tumor cells.
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August-2016
Volume 12 Issue 2

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Shepelev MV, Kopantzev EP, Vinogradova TV, Sverdlov ED and Korobko IV: hTERT and BIRC5 gene promoters for cancer gene therapy: A comparative study. Oncol Lett 12: 1204-1210, 2016
APA
Shepelev, M.V., Kopantzev, E.P., Vinogradova, T.V., Sverdlov, E.D., & Korobko, I.V. (2016). hTERT and BIRC5 gene promoters for cancer gene therapy: A comparative study. Oncology Letters, 12, 1204-1210. https://doi.org/10.3892/ol.2016.4718
MLA
Shepelev, M. V., Kopantzev, E. P., Vinogradova, T. V., Sverdlov, E. D., Korobko, I. V."hTERT and BIRC5 gene promoters for cancer gene therapy: A comparative study". Oncology Letters 12.2 (2016): 1204-1210.
Chicago
Shepelev, M. V., Kopantzev, E. P., Vinogradova, T. V., Sverdlov, E. D., Korobko, I. V."hTERT and BIRC5 gene promoters for cancer gene therapy: A comparative study". Oncology Letters 12, no. 2 (2016): 1204-1210. https://doi.org/10.3892/ol.2016.4718