Quantification of minimal residual disease (MRD) in acute lymphoblastic leukemia (ALL) using amplicon-fusion-site polymerase chain reaction (AFS-PCR)

Autor: Weber Axel, Taube Sylvia, zur Stadt Udo, Horstmann Martin, Krohn Knut, Bradtke Jutta, Teigler-Schlegel Andrea, Leiblein Sabine, Christiansen Holger
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Experimental Hematology & Oncology, Vol 1, Iss 1, p 33 (2012)
Druh dokumentu: article
ISSN: 2162-3619
DOI: 10.1186/2162-3619-1-33
Popis: Abstract The amplification of putative oncogenes is a common finding within the genome of various cancer types. Identification and further targeting of specific junction sites within the sequence of genomic amplicons (amplicon fusion sites, AFS) by PCR (AFS-PCR) is suitable for quantification of minimal residual disease (MRD). This approach has recently been developed and described for MYCN amplified neuroblastomas. To compare AFS-PCR directly to routinely used MRD diagnostic strategies, we mapped the amplified genomic regions (ampGR) of an iAMP21-amplicon in high resolution of a patient with acute lymphoblastic leukemia (ALL). Successfully, we established AFS-PCR covering junction sites between ampGR within the iAMP21-amplicon. Quantification of MRD by AFS-PCR was directly comparable to IgH/TCR based real time quantitative PCR and fluorescence activated cell sorting (FACS) analysis in consecutive bone marrow (BM) specimens. Our data give an additional proof of concept of AFS-PCR for quantification of MRD. The method could be taken into account for ALL patients with genomic amplifications as alternative MRD diagnostic, if no or qualitatively poor Ig/TCR-PCRs are available.
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