PMID- 26394808 OWN - NLM STAT- MEDLINE DCOM- 20160722 LR - 20220321 IS - 1098-2264 (Electronic) IS - 1045-2257 (Linking) VI - 54 IP - 12 DP - 2015 Dec TI - New data shed light on Y-loss-related pathogenesis in myelodysplastic syndromes. PG - 717-24 LID - 10.1002/gcc.22282 [doi] AB - Loss of the Y-chromosome (LOY) is described as both a normal age-related event and a marker of a neoplastic clone in hematologic diseases. To assess the significance of LOY in myelodysplastic syndromes (MDS), we determined the percentage of LOY in clonal CD34+ peripheral blood cells in comparison to normal CD3+ T-cells of 27 MDS patients using fluorescence in situ hybridization (FISH) analysis. Results were compared with the percentage of LOY in CD34+ and CD3+ cells of 32 elderly men without hematologic diseases and in 25 young blood donors. While LOY could not be detected in CD3+ cells of young men, it was observed in CD3+ cells of elderly men without hematologic diseases (2.5% LOY) as well as in CD3+ cells of elderly MDS patients (5.8% LOY). The percentage of CD34+ cells affected by LOY was significantly higher in MDS patients compared to elderly men without hematologic diseases (43.3% vs. 13.2%, P = 0.005), indicating that LOY has an age-related basis but is also associated with MDS. Furthermore, we aimed to define a threshold between age- and disease-associated LOY in MDS. Statistical analysis revealed that a value of 21.5% LOY in CD34+ peripheral blood cells provided the best threshold to discriminate between these two conditions in MDS. We conclude that LOY is clonal in a substantial number of MDS based on an age-related predisposition. CI - (c) 2015 Wiley Periodicals, Inc. FAU - Ganster, Christina AU - Ganster C AD - Department of Hematology and Medical Oncology, University Medical Center Gottingen, Gottingen, Germany. FAU - Kampfe, Dietrich AU - Kampfe D AD - Praxis fur Hamatologie und Onkologie, Ludenscheid, Germany. FAU - Jung, Klaus AU - Jung K AD - Department of Medical Statistics, University Medical Center Gottingen, Gottingen, Germany. FAU - Braulke, Friederike AU - Braulke F AD - Department of Hematology and Medical Oncology, University Medical Center Gottingen, Gottingen, Germany. FAU - Shirneshan, Katayoon AU - Shirneshan K AD - Department of Hematology and Medical Oncology, University Medical Center Gottingen, Gottingen, Germany. FAU - Machherndl-Spandl, Sigrid AU - Machherndl-Spandl S AD - 1st Medical Department with Hematology, Stem Cell Transplantation, Hemostasis and Medical Oncology, Elisabethinen Hospital, Linz, Austria. FAU - Suessner, Susanne AU - Suessner S AD - Red Cross Blood Transfusion Service of Upper Austria, Austrian Cluster for Tissue Regeneration, Linz, Austria. FAU - Bramlage, Carsten P AU - Bramlage CP AD - Department of Nephrology and Rheumatology, University Medical Center Gottingen, Gottingen, Germany. FAU - Legler, Tobias J AU - Legler TJ AD - Department of Transfusion Medicine, University Medical Center Gottingen, Gottingen, Germany. FAU - Koziolek, Michael J AU - Koziolek MJ AD - Department of Nephrology and Rheumatology, University Medical Center Gottingen, Gottingen, Germany. FAU - Haase, Detlef AU - Haase D AD - Department of Hematology and Medical Oncology, University Medical Center Gottingen, Gottingen, Germany. FAU - Schanz, Julie AU - Schanz J AD - Department of Hematology and Medical Oncology, University Medical Center Gottingen, Gottingen, Germany. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150923 PL - United States TA - Genes Chromosomes Cancer JT - Genes, chromosomes & cancer JID - 9007329 RN - 0 (Antigens, CD34) RN - 0 (CD3 Complex) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Antigens, CD34/metabolism MH - Blood Donors MH - CD3 Complex/metabolism MH - Cells, Cultured MH - *Chromosome Deletion MH - Chromosomes, Human, Y/*genetics MH - Clonal Selection, Antigen-Mediated MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - Middle Aged MH - Myelodysplastic Syndromes/*genetics MH - T-Lymphocytes/immunology/metabolism MH - Young Adult EDAT- 2015/09/24 06:00 MHDA- 2016/07/23 06:00 CRDT- 2015/09/24 06:00 PHST- 2015/03/05 00:00 [received] PHST- 2015/06/18 00:00 [revised] PHST- 2015/06/18 00:00 [accepted] PHST- 2015/09/24 06:00 [entrez] PHST- 2015/09/24 06:00 [pubmed] PHST- 2016/07/23 06:00 [medline] AID - 10.1002/gcc.22282 [doi] PST - ppublish SO - Genes Chromosomes Cancer. 2015 Dec;54(12):717-24. doi: 10.1002/gcc.22282. Epub 2015 Sep 23.