TURKISH JOURNAL OF ONCOLOGY 1996 , Vol 11 , Num 2
BCR/ABL GENE REARRANGEMENTS IN CHRONIC MYELOID LEUKEMIA
HÜLYA YAZICI, ZEYNEP ŞENGÜN, MELİH AKTAN, SEVGİ KALAYOĞLU, GÜLTEN AKTUĞLU, NECDET ÜSKENT, NEJAT DALAY
İ.Ü. Onkoloji Enstitüsü, Temel Onkoloji AD., İstanbul The characteristic disease marker for chronoic myeloid leukemia, the Philadelphia chromosome, results from a reciprocal translocation between chromosomes 9 and 22. Analysis of the bcr/abl gene fusion by Southern Blot hybridization proved to provide valuable clinical information. Seventy-eight CML patients were investigated. DNA samples were digested by the Bgl II and Xba I restriction enzymes and hybridized to a bcr region specific probe. Rearrangements were found in 66 patients, 12 samples yielded negative results. The assay was found to be sensitive enough to detect as few as %1 leukemic cells in peripheral blood. Depending on the stage of the disease and the time of treatment, the sensitivity of the assay ranged between %93-%100. Keywords :