Telomerase Modulation in Therapeutic Approach

ISSN: 1873-4286 (Online)
ISSN: 1381-6128 (Print)


Volume 20, 42 Issues, 2014


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Telomerase Modulation in Therapeutic Approach

Author(s): Aleksandra Romaniuk, Przemysl aw Kopczy nski, Krzysztof Ksi azek and Bl az ej Rubi s

Affiliation: Poznan University of Medical Sciences, Department of Clinical Chemistry and Molecular Diagnostics, Przybyszewskiego 49 Str., 60-355 Pozna n, Poland.

Abstract

Telomerase is a specialized enzymatic complex responsible for the synthesis of telomeric repeats 5'-TTAGGG-3' localized at the ends of eukaryotic chromosomes. This mechanism prevents shortening of telomeres after each cell division. The enzyme is detected in about 85% of human tumors, but it is not expressed in normal cells or its expression is significantly lower. Consequently, it provides the cancer cells immortality. Thus, since showing cancer cell specificity (to a certain extent), the enzyme became a target for an adjuvant cancer therapy. So far, in vitro studies and preclinical studies seem to be promising. This work focuses on the pathways and mechanisms that are targeted in order to eliminate telomerase with consequence of cancer cell death. The anti-telomerase strategy may be beneficial especially in the context of sensitization of tumor cell to chemotherapeutic agents. We also indicate potential side effects and consequences of telomerase downregulation that should be considered when anti-telomerase strategy is undertaken. Alternatively, we also emphasize potential useful application of telomerase induction.

Keywords: Cancer therapy, stem cells, telomerase, telomerase induction, telomerase inhibition, telomeres.

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Article Details

Volume: 20
Issue Number: 41
First Page: 6438
Last Page: 6451
Page Count: 14
DOI: 10.2174/1381612820666140630092721
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