Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/14059
Title: Telomere elongation in the breast cancer cell line 21NT after treatment with an epigenetic modifying drug
Authors: Motevalli, A
Yasaei, H
Virmouni, SA
Mirabdulhagh, M
Slijepcevic, P
Roberts, T
Issue Date: 2016
Publisher: Scientific Research Publishing
Citation: Journal of Cancer Therapy, 07 (10): pp. 700 - 711,(2016)
Abstract: Background: Telomere length dysregulation plays a major role in cancer development and aging. Telomeres are maintained by a group of specialized genes known as shelterin and shelterin-associated proteins. In breast cancer lines it has been shown that shelterin proteins are dysregulated thereby affecting the telomere stability and contributing to the neoplastic conversion of the mammary epithelial cells. Interestingly, the regulation of some of the shelterin genes is thought to be controlled epigenetically. Methods and Results: In this study, we set out to measure the effect of increased shelterin gene expression on telomere length in breast cancer cell line 21NT treated with 5-aza-2-deoxycytidine (5-aza-CdR) using known telomere length assays. We measured telomere lengths using: Telomere Restriction Fragment length (TRF), absolute quantitative-PCR and cytogenetic Interphase Quantitative Fluorescent in situ Hybridization (iQ-FISH). We found that non-cytotoxic levels of 5-aza-CdR affect telomere lengths by causing a significant and stable increase in telomere lengths of the breast cancer cell line. The increase in telomere lengths was consistently observed when various telomere length methods were used. Conclusions: Further investigation is required to understand the underlying mechanism involved, and the significance of telomere length elongation in relation to clinical outcome when epigenetic modifying drugs are utilized.
URI: http://bura.brunel.ac.uk/handle/2438/14059
DOI: http://dx.doi.org/10.4236/jct.2016.710072
ISSN: 2151-1934
2151-1942
Appears in Collections:Dept of Life Sciences Research Papers

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