PMID- 11297762 OWN - NLM STAT- MEDLINE DCOM- 20010426 LR - 20190816 IS - 0165-4608 (Print) IS - 0165-4608 (Linking) VI - 125 IP - 1 DP - 2001 Feb TI - Tetrasomy 8 is associated with a major cellular proliferative advantage and a poor prognosis. two cases of myeloid hematologic disorders and review of the literature. PG - 14-20 AB - We report two cases of acute myeloid leukemia (AML) with tetrasomy 8 detected in patients' bone marrow samples using chromosome GTG-banding, fluorescence in situ hybridization (FISH) and primed in situ labeling (PRINS) techniques. Case 1 was a myelodysplastic syndrome (MDS) in transition to AML-M4 and case 2 was an AML-M2. In case 1, the tetrasomy 8 was found in 40% of metaphase cells and constituted the only chromosome abnormality. In case 2, it was accompanied by a double Ph, trisomy 18 and disomy Y and was found in 68% of metaphase cells. However, FISH and PRINS techniques revealed the coexistence of tetrasomy 8 and trisomy 8 in interphase nuclei of both cases. When the proportion of cells with tetrasomy 8 was compared between metaphases and interphase nuclei, it showed a much higher percentage of cells with tetrasomy 8 in metaphases than in interphase nuclei. Moreover, in case 2, although multi-PRINS and FISH-PRINS techniques showed other populations of interphase nuclei with different combinations of chromosome anomalies with respect to the copy numbers for chromosomes 8, 18, Y and Ph, only cells that contained either a single Ph or tetrasomy 8 plus trisomy 18, disomy Y, and double Ph could be seen in metaphases. This strongly suggests that tetrasomy 8 confers a higher proliferative advantage to cells. Our cases also show that the tetrasomy 8 is associated with a poor prognosis. FAU - Yan, J AU - Yan J AD - Division of Pathology, Department of Medical Biology, Faculty of Medicine, Laval University, and Unite de Recherche en Genetique Humaine et Moleculaire, Hopital Saint-Francois d'Assise, CHUQ, 10 de l'Espinay, G1L 3L5, Quebec, Canada. FAU - Marceau, D AU - Marceau D FAU - Drouin, R AU - Drouin R LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 RN - 0 (DNA Primers) SB - IM MH - Aged MH - Base Sequence MH - *Chromosome Aberrations MH - *Chromosome Disorders MH - *Chromosomes, Human, Pair 8 MH - DNA Primers MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Leukemia, Myeloid, Acute/diagnosis/drug therapy/*genetics MH - Male MH - Middle Aged RF - 29 EDAT- 2001/04/12 10:00 MHDA- 2001/05/01 10:01 CRDT- 2001/04/12 10:00 PHST- 2001/04/12 10:00 [pubmed] PHST- 2001/05/01 10:01 [medline] PHST- 2001/04/12 10:00 [entrez] AID - S0165-4608(00)00352-6 [pii] AID - 10.1016/s0165-4608(00)00352-6 [doi] PST - ppublish SO - Cancer Genet Cytogenet. 2001 Feb;125(1):14-20. doi: 10.1016/s0165-4608(00)00352-6.