6533b822fe1ef96bd127ccd0

RESEARCH PRODUCT

Quality assurance in RT-PCR-based BCR/ABL diagnostics--results of an interlaboratory test and a standardization approach.

Ebener UEnczmann JR SeeligAhmet H. ElmaagacliMichael SchleuningChristian ThiedeJ. MaurerJ. H. ClementPhilippe SchafhausenEckhard ThielAndreas HochhausK U LentesR LeoK R HeldGeorg HessHöppner WK L SchäferM AivadoR SchochMichael LübbertF GrünebachS ViehmannS WilhelmC WeberF SchülerK SeegerChristian SchmidtA ChristmannThomas Burmeister

subject

Quality ControlCancer ResearchFusion Proteins bcr-ablBiologylaw.inventionlawhemic and lymphatic diseasesLeukemia Myelogenous Chronic BCR-ABL PositiveBiomarkers TumorHumansBase sequencePolymerase chain reactionDNA PrimersABLBase Sequencebusiness.industryReverse Transcriptase Polymerase Chain Reactionbreakpoint cluster regionHematologyMolecular biologyReverse transcriptaseReal-time polymerase chain reactionOncologyRNA extractionbusinessQuality assurance

description

Here we describe the results of an interlaboratory test for RT-PCR-based BCR/ABL analysis. The test was organized in two parts. The number of participating laboratories in the first and second part was 27 and 20, respectively. In the first part samples containing various concentrations of plasmids with the ela2, b2a2 or b3a2 BCR/ABL transcripts were analyzed by PCR. In the second part of the test, cell samples containing various concentrations of BCR/ABL-positive cells were analyzed by RT-PCR. Overall PCR sensitivity was sufficient in approximately 90% of the tests, but a significant number of false positive results were obtained. There were significant differences in sensitivity in the cell-based analysis between the various participants. The results are discussed, and proposals are made regarding the choice of primers, controls, conditions for RNA extraction and reverse transcription.

10.1038/sj.leu.2401899https://pubmed.ncbi.nlm.nih.gov/11021760