A novel multiplex RT-PCR system detects human endogenous retrovirus-K in breast cancer

A novel multiplex RT-PCR system detects human endogenous retrovirus-K in breast cancer Human endogenous retrovirus HERV-K like-sequences have been implicated in certain cancers. We developed a novel multiplex RT-PCR system for HERV-K that yielded a 533 bp product together with a smaller sized product (319 bp) of the house keeping gene, histidyl tRNA synthetase (HtRNAS). The latter spanned an intron that also served to validate target cDNA. PCR amplicons of HERV-K and HtRNAS were visualised using a gel documentation system and the pixel intensity used to derive semi-quantitative levels of viral expression. Our data showed that HERV-K10 was significantly elevated in MCF-7 cells treated with estrogen. Interestingly, HERV-K expression was higher in MCF-7 cells selected with adriamycin. RT-PCR combined with Southern blotting also detected HERV-K from breast cancer tissue using laser capture microscopy. This study highlights the presence of HERV-K in the breast cancer cell lines MCF-7 and MCF-7 ADR and confirms HERV-K10 transcripts in the cell line T47D. We believe this study to be a novel approach in determining levels of HERV-K expression and for detecting this virus in cancer cell lines and tissues. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

A novel multiplex RT-PCR system detects human endogenous retrovirus-K in breast cancer

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Publisher
Springer-Verlag
Copyright
Copyright © 2005 by Springer-Verlag/Wien
Subject
Biomedicine; Medical Microbiology; Virology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-004-0378-8
Publisher site
See Article on Publisher Site

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