NDLI: Quantitative PCR on 5 genes reliably identifies CTCL patients with 5% to 99% circulating tumor cells with 90% accuracy

Content Provider	PubMed Central
Author	Michael, Nebozhyn Loboda, Andrey Kari, Laszlo Rook, Alain H. Vonderheid, Eric C. Lessin, Stuart Berger, Carole Edelson, Richard Nichols, Calen Yousef, Malik Lalitha, Gudipati Shang, Meiling Showe, Michael K. Showe, Louise C.
Copyright Year	2006
Abstract	We previously identified a small number of genes using cDNA arrays that accurately diagnosed patients with Sézary Syndrome (SS), the erythrodermic and leukemic form of cutaneous T-cell lymphoma (CTCL). We now report the development of a quantitative real-time polymerase chain reaction (qRT-PCR) assay that uses expression values for just 5 of those genes: STAT4, GATA-3, PLS3, CD1D, and TRAIL. qRT-PCR data from peripheral blood mononuclear cells (PBMCs) accurately classified 88% of 17 patients with high blood tumor burden and 100% of 12 healthy controls in the training set using Fisher linear discriminant analysis (FLDA). The same 5 genes were then assayed on 56 new samples from 49 SS patients with blood tumor burdens of 5% to 99% and 69 samples from 65 new healthy controls. The average accuracy over 1000 resamplings was 90% using FLDA and 88% using support vector machine (SVM). We also tested the classifier on 14 samples from patients with CTCL with no detectable peripheral involvement and 3 patients with atopic dermatitis with severe erythroderma. The accuracy was 100% in identifying these samples as non-SS patients. These results are the first to demonstrate that gene expression profiling by quantitative PCR on a selected number of critical genes can be employed to molecularly diagnosis SS.
Related Links	http://dx.doi.org/10.1182/blood-2005-07-2813
Ending Page	3196
Page Count	8
Starting Page	3189
File Format	PDF
ISSN	00064971
e-ISSN	15280020
Journal	Blood
Issue Number	8
Volume Number	107
Language	English
Publisher	The American Society of Hematology
Publisher Date	2006-04-15
Access Restriction	Open
Rights Holder	The American Society of Hematology
Subject Keyword	Immunology Cell Biology Biochemistry Hematology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Cell Biology Hematology Biochemistry Immunology

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