Abstract:
:The ability to utilize formalin-fixed, paraffin-embedded (FFPE) archival specimens reliably for high-resolution molecular genetic analysis would be of immense practical application in the study of human disease. We have evaluated the ability of the GenomePlex whole genome amplification (WGA) kit to amplify frozen and FFPE tissue for use in array CGH (aCGH). GenomePlex gave highly representative data compared with unamplified controls both from frozen material (Pearson's R(2) = 0.898) and from FFPE (R(2) = 0.883). Artifactual amplification observed using DOP-PCR at chromosomes 1p, 3, 13q, and 16p was not seen with GenomePlex. Highly reproducible aCGH profiles were obtained using as little as 5 ng starting material from FFPE (R(2) = 0.918). This WGA method should readily lend itself to the determination of DNA copy number alterations from small fresh-frozen and FFPE clinical tumor specimens, although some care must be taken to optimize the DNA extraction procedure.
journal_name
Genomicsjournal_title
Genomicsauthors
Little SE,Vuononvirta R,Reis-Filho JS,Natrajan R,Iravani M,Fenwick K,Mackay A,Ashworth A,Pritchard-Jones K,Jones Cdoi
10.1016/j.ygeno.2005.09.019subject
Has Abstractpub_date
2006-02-01 00:00:00pages
298-306issue
2eissn
0888-7543issn
1089-8646pii
S0888-7543(05)00278-8journal_volume
87pub_type
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