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Selection of microRNA for providing tumor specificity of transgene expression in cancer gene therapy

  • Molecular Cell Biology
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Abstract

The use of tumor-specific microRNA loss to inhibit transgene expression in normal cells is considered as a way to increase the specificity of gene-therapeutic antitumor drugs. This method assumes the introduction of recognition sites of suppressed in tumor cells microRNAs into transgene transcipt. In the presented work, the efficiency of the strategy for providing the tumor specificity of transgene expression depending on parameters of microRNA expression in normal and tumor cells was studied. It was established that microRNA suppression in tumor cells and the determination of absolute microRNA levels in tumor and normal cells are not sufficient for the adequate estimation of the possibility of specific microRNA usage in the scheme of cancer gene therapy, and particularly do not allow to exclude a significant decrease in the efficiency of the gene-therapeutic drug upon the introduction of microRNA recognition sites. These parameters are only suitable for the preliminary selection of microRNA. The effect of introduction of microRNA recognition sites on transgene expression level in target tumor cells should be validated experimentally. It is suggested that this should be done directly in the cancer gene therapy scheme with monitoring of the therapeutic transgene activity.

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Abbreviations

3'-UTR:

3'-untranslated region

5FC:

5-fluorocytosine

CD:UPRT:

yeast hybrid protein cytosine deaminase: uracil-phosphoribosyltransferase

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Authors and Affiliations

  1. Institute of Gene Biology, Russian Academy of Sciences, Moscow, 119334, Russia

    M. V. Shepelev, S. V. Kalinichenko, P. N. Vikhreva & I. V. Korobko

Authors
  1. M. V. Shepelev
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  2. S. V. Kalinichenko
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  3. P. N. Vikhreva
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  4. I. V. Korobko
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Corresponding author

Correspondence to M. V. Shepelev.

Additional information

Original Russian Text © M.V. Shepelev, S.V. Kalinichenko, P.N. Vikhreva, I.V. Korobko, 2016, published in Molekulyarnaya Biologiya, 2016, Vol. 50, No. 2, pp. 327–335.

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Shepelev, M.V., Kalinichenko, S.V., Vikhreva, P.N. et al. Selection of microRNA for providing tumor specificity of transgene expression in cancer gene therapy. Mol Biol 50, 284–291 (2016). https://doi.org/10.1134/S0026893316020229

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  • DOI: https://doi.org/10.1134/S0026893316020229

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