PMID- 9563879 OWN - NLM STAT- MEDLINE DCOM- 19980528 LR - 20071115 IS - 1078-0432 (Print) IS - 1078-0432 (Linking) VI - 4 IP - 4 DP - 1998 Apr TI - Philadelphia chromosome-positive myeloid cells in the peripheral blood of chronic myelogenous leukemia patients: comparison with the frequency detected in cycling cells of the bone marrow. PG - 861-7 AB - Monitoring the frequency of the Philadelphia (Ph) chromosome in chronic myelogenous leukemia (CML) is important in determining the effectiveness of treatment for patients during therapy. This can be done with high resolution by subjecting short-term bone marrow cultures (48 h) to 24 h of mitotic arrest before harvest and detecting Ph-positive (Ph+) metaphases by fluorescence in situ hybridization (FISH) in a procedure termed hypermetaphase FISH or HMF. Here, we compared procedures for detecting Ph+ interphase cells (interphase FISH or I-FISH) in peripheral blood polymorphonucleocytes (PMNs) with HMF results on the bone marrow of the same 26 CML patients in different stages of remission. The probes for I-FISH in these experiments were relatively large (200-300 kb) and sufficiently resolved in PMNs so that 97.5% of the cells were scorable. The correlation between the frequencies of Ph+ cells from the two different cell sources was excellent (r = 0.983, P < 0.0001); however, there was a consistently higher level of Ph+ cells observed in the cycling marrow cells than in the peripheral blood PMNs. This was discussed in terms of current theories of apoptosis in CML cells. The large number of PMNs analyzable by I-FISH (approximately 500/patient in this study) provided sufficiently narrow 99% confidence intervals to suggest the procedure as an effective and efficient method for monitoring the frequency of Ph+ cells in CML patients undergoing therapy. However, for detection and quantification of minimal residual disease, HMF is preferable to I-FISH because of the much lower frequency of false-positive readings with the former procedure. FAU - Seong, D AU - Seong D AD - Department of Hematology, University of Texas M.D. Anderson Cancer Center, Houston 77030, USA. FAU - Thall, P AU - Thall P FAU - Kantarjian, H M AU - Kantarjian HM FAU - Talpaz, M AU - Talpaz M FAU - Swantkowski, J AU - Swantkowski J FAU - Xu, J AU - Xu J FAU - Shen, Y AU - Shen Y FAU - Glassman, A AU - Glassman A FAU - Ramagli, L AU - Ramagli L FAU - Siciliano, M J AU - Siciliano MJ LA - eng GR - CA16672/CA/NCI NIH HHS/United States GR - CA34936/CA/NCI NIH HHS/United States GR - CA49639/CA/NCI NIH HHS/United States GR - etc. PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Clin Cancer Res JT - Clinical cancer research : an official journal of the American Association for Cancer Research JID - 9502500 RN - 0 (Genetic Markers) SB - IM MH - Adult MH - Aged MH - Bone Marrow Cells/physiology MH - Cell Cycle MH - Female MH - Genetic Markers MH - Humans MH - In Situ Hybridization, Fluorescence MH - Interphase/genetics MH - Leukemia, Myelogenous, Chronic, BCR-ABL Positive/blood/*genetics MH - Male MH - Metaphase/genetics MH - Middle Aged MH - *Philadelphia Chromosome EDAT- 1998/05/14 00:00 MHDA- 1998/05/14 00:01 CRDT- 1998/05/14 00:00 PHST- 1998/05/14 00:00 [pubmed] PHST- 1998/05/14 00:01 [medline] PHST- 1998/05/14 00:00 [entrez] PST - ppublish SO - Clin Cancer Res. 1998 Apr;4(4):861-7.