title: Multiplex reverse transcription-polymerase chain reaction combined with on-chip electrophoresis as a rapid screening tool for candidate gene sets.
abstract: Combining multiplex reverse transcription-polymerase chain reaction (mRT-PCR) with microfluidic amplicon analysis, we developed an assay for the rapid and reliable semiquantitative expression screening of 11 candidate genes for drug resistance in human malignant melanoma. The functionality of this approach was demonstrated by low interexperimental variations of amplicon quantities after endpoint analysis. When applied to RNA samples derived from drug-sensitive and -resistant melanoma cell lines, mRT-PCR delivered results qualitatively concordant with data obtained from Northern blot and array analyses. The screening of additional melanoma cell lines resulted in distinct expression patterns for ten candidate genes. Our approach reveals a rapid and easy-to-handle alternative for candidate gene set evaluation from limited amounts of RNA.
authors.affiliation: Molecular Genome Analysis, Deutsches Krebsforschungs-zentrum (DKFZ), Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany. r.wittig@dkfz.de
authors.forename: Rainer
authors.initials: R
authors.lastname: Wittig
authors.forename: Rüdiger
authors.initials: R
authors.lastname: Salowsky
authors.forename: Stephanie
authors.initials: S
authors.lastname: Blaich
authors.forename: Stefan
authors.initials: S
authors.lastname: Lyer
authors.forename: Juehn S
authors.initials: JS
authors.lastname: Maa
authors.forename: Odilo
authors.initials: O
authors.lastname: Müller
authors.forename: Jan
authors.initials: J
authors.lastname: Mollenhauer
authors.forename: Annemarie
authors.initials: A
authors.lastname: Poustka
mesh_terms: D045744:Cell Line, Tumor; D019008:Drug Resistance, Neoplasm / Q000235:genetics*; D046209:Electrophoresis, Microchip; D005820:Genetic Testing / Q000379:methods*; D006801:Humans; D008545:Melanoma / Q000175:diagnosis / Q000235:genetics*; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000379:methods*