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dc.contributor.authorSunanta Chariyalertsaken_US
dc.contributor.authorWichai Purisaen_US
dc.contributor.authorPhongkitti Thisuphakornen_US
dc.contributor.authorAnant Karalaken_US
dc.contributor.authorTanett Pakeetooten_US
dc.contributor.authorSongsak Petmitren_US
dc.contributor.otherNational Cancer Institute Thailanden_US
dc.contributor.otherRungsit Universityen_US
dc.contributor.otherMahidol Universityen_US
dc.identifier.citationAsian Pacific Journal of Cancer Prevention. Vol.8, No.4 (2007), 561-566en_US
dc.description.abstractThis study was performed to detect amplification of DNA sequences on chromosomes 4p15.2 and 6q23-24, obtained from formalin-fixed, paraffin-embedded, breast-cancer tissues. The prognostic relevance of the amplification was also demonstrated. DNA from formalin-fixed, paraffin-embedded tumor and corresponding normal tissues of 53 patients with breast cancer was extracted and amplified by real-time quantitative PCR technique. Amplification of the DNA sequences on chromosomes 4p15.2 and 6q23-24 was detected in 23 (43%) and 32 (60%) cases, respectively. Thirty-six (68%) cases showed amplification on both or one of the chromosomes. These frequencies are similar to that obtained from fresh samples in our previous study. In addition, amplification of the DNA on chromosomes 4p15.2 and/or 6q23-24 was predominantly observed in tumors with invasive ductal carcinoma. The findings in this study demonstrate that DNA extracted from formalin-fixed, paraffinembedded breast tumors can be used to determine amplification of DNA sequences on selective chromosomal regions. We also suggest that the amplified DNA on chromosomal regions 4p15.2 and 6q23-24 might be involved in the development and progression of breast cancer.en_US
dc.rightsMahidol Universityen_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.titleReal-time quantitative PCR analysis of amplified DNA on chromosomes 4p15.2 and 6q23-24 from formalin-fixed, paraffin-embedded breast cancer tissuesen_US
Appears in Collections:Scopus 2006-2010

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