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. 1988;12(9):757-62.
doi: 10.1016/0145-2126(88)90009-4.

Differences in DNA-fingerprints between remission and relapse in childhood acute lymphoblastic leukemia

S Pakkala  1 , P Helminen, U M Saarinen, R Alitalo, L Peltonen
Affiliations

Differences in DNA-fingerprints between remission and relapse in childhood acute lymphoblastic leukemia

S Pakkala et al. Leuk Res. 1988.

Abstract

DNA "fingerprint" (DNA-F) analysis, based on the polymorphism caused by numeric variations in the tandem repeats of minisatellite areas of the human genome, has a potential capacity to reveal even minor genomic changes. In this study we have applied DNA-F to the detection of residual disease in leukemia. In order to identify normal and leukemic cell populations, we used two molecular probes: Jeffrey's minisatellite probes and M13 wild type phage probe, which detect different sets of polymorphic fragments in the human genome. Comparison of varying minisatellite fragments between remission and relapse was performed by Southern blot hybridization in seven patients with acute lymphoblastic leukemia (ALL). The results suggest that Southern hybridization with DNA "fingerprint" probes can prove to be a sensitive method in the detection of minimal residual disease in ALL.

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