PMID- 11177598 OWN - NLM STAT- MEDLINE DCOM- 20010614 LR - 20041117 IS - 1525-8165 (Print) IS - 1525-8165 (Linking) VI - 9 IP - 6 DP - 2000 Dec TI - Chromosomal aberrations characteristic for sAML/sMDS are not detectable by random screening using FISH in peripheral blood-derived grafts used for autologous transplantation. PG - 861-5 AB - Acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) is observed in 5 to 10% of patients treated with high-dose chemotherapies followed by autologous stem cell and bone marrow transplantation. Both diseases are frequently associated with monosomy 7 (-7), trisomy 8 (+8), loss of the long arm of chromosome 5 (-5q), and deletions including the TP53-gene region according to del(17)(p13). In this study, we examined whether these chromosomal aberrations are already detectable in blood stem cells from patients who have all been treated with standard chemotherapies prior to peripheral blood stem cell transplantation (PBSCT). Therefore, we screened peripheral blood derived stem cells obtained at the time of stem cell harvest for the presence of -7, +8, -5q, and del(17)(p13) by fluorescence in situ hybridization (FISH). Our series included 40 patients: 4 patients with Hodgkin's disease, 6 patients with non-Hodgkin-lymphoma (NHL), 1 patient with ALL, 4 patients with plasmocytoma, and 25 patients with solid tumors. Peripheral blood mononuclear cells (PBMC) from eight healthy blood donors served as controls. Assuming a hybridization efficiency of >98%, the cut-off level of non diploid cells was determined for each DNA-probe. None of the stem cell preparations exhibited chromosomal damage. Our findings indicate that chromosomal damage is a rare event in stem cell autografts. FAU - Weber, M H AU - Weber MH AD - Department of Medicine III (Haematology, Oncology, and Transfusion Medicine), Universitatsklinikum Benjamin Franklin, Freie Universitat Berlin, Hindenburgdamm 30, D-12200 Berlin, Germany. FAU - Wenzel, U AU - Wenzel U FAU - Thiel, E AU - Thiel E FAU - Knauf, W U AU - Knauf WU LA - eng PT - Journal Article PL - United States TA - J Hematother Stem Cell Res JT - Journal of hematotherapy & stem cell research JID - 100892915 SB - IM MH - Acute Disease MH - Adult MH - Case-Control Studies MH - Chromosome Aberrations/*diagnosis/genetics MH - Chromosome Disorders MH - Cohort Studies MH - Female MH - Hematopoietic Stem Cell Transplantation/methods/*standards MH - Hematopoietic Stem Cells/*metabolism MH - Humans MH - In Situ Hybridization, Fluorescence MH - Leukapheresis MH - Leukemia, Myeloid/blood/*genetics/therapy MH - Male MH - Middle Aged MH - Myelodysplastic Syndromes/blood/*genetics/therapy MH - Neoplasms/blood/genetics/therapy MH - Transplantation, Autologous/methods/standards EDAT- 2001/02/15 11:00 MHDA- 2001/06/23 10:01 CRDT- 2001/02/15 11:00 PHST- 2001/02/15 11:00 [pubmed] PHST- 2001/06/23 10:01 [medline] PHST- 2001/02/15 11:00 [entrez] AID - 10.1089/152581600750062291 [doi] PST - ppublish SO - J Hematother Stem Cell Res. 2000 Dec;9(6):861-5. doi: 10.1089/152581600750062291.