PMID- 8556953 OWN - NLM STAT- MEDLINE DCOM- 19960227 LR - 20071115 IS - 0196-4763 (Print) IS - 0196-4763 (Linking) VI - 22 IP - 3 DP - 1995 Sep 15 TI - Clinical, biological, and immunophenotypical characteristics of B-cell chronic lymphocytic leukemia with trisomy 12 by fluorescence in situ hybridization. PG - 217-22 AB - The clinical, biological, and immunophenotypical characteristics of B-cell chronic lymphocytic leukemia (B-CLL) patients with trisomy 12 detected by fluorescence in situ hybridization (FISH) using a chromosome 12 alpha-centromeric probe (D12Z3) were analyzed in the present study. From a total of 104 consecutive B-CLL patients, 21 (20%) displayed trisomy 12, the percentage of trisomic cells ranging from 13% to 76%. From the clinico-biological point of view, patients with trisomy 12 were associated with atypical CLL morphology (43% vs 10%, P = 0.04) and BM diffuse pattern (75% vs. 25%, P = 0.02) together with increased WBC counts (141 +/- 220 vs. 58 +/- 67 x 10(9)/L, P = 0.04). In contrast, no association was detected between the presence of trisomy 12 and other disease characteristics such as age, sex, clinical stage, hepatomegaly, lymphadenopathies, haemoglobin levels and platelet counts, and the cell cycle distribution of PB leukocytes in both groups of patients. Trisomy 12 patients had a significantly higher expression of the FMC7 antigen both in percentage (34 +/- 34% vs. 13 +/- 20%, P = 0.02) and absolute numbers (29 +/- 62 vs. 7 +/- 17 x 10(9)/L, P = 0.007). No major differences were found regarding the expression of mouse rosettes, CD19+, and CD19+/CD5+ lymphocytes. Upon analyzing the correlations between the disease characteristics of trisomy 12 cases, significant associations were found between the percentage of trisomic cells and both the WBC count (r = 0.52, P = 0.02) and the PB lymphocyte count (r = 0.60, P = 0.007).(ABSTRACT TRUNCATED AT 250 WORDS) FAU - Tabernero, M D AU - Tabernero MD AD - Unit of Cytometry, University of Salamanca, Spain. FAU - San Miguel, J F AU - San Miguel JF FAU - Garcia, J L AU - Garcia JL FAU - Garcia-Isidoro, M AU - Garcia-Isidoro M FAU - Wiegant, J AU - Wiegant J FAU - Ciudad, J AU - Ciudad J FAU - Gonzalez, M AU - Gonzalez M FAU - Rios, A AU - Rios A FAU - Raap, A AU - Raap A FAU - Orfao, A AU - Orfao A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Cytometry JT - Cytometry JID - 8102328 RN - 0 (DNA, Neoplasm) SB - IM MH - Aged MH - Animals MH - Cell Division MH - *Chromosomes, Human, Pair 12 MH - DNA, Neoplasm MH - Female MH - Humans MH - Immunophenotyping MH - *In Situ Hybridization, Fluorescence MH - Leukemia, Lymphocytic, Chronic, B-Cell/*genetics/immunology/pathology MH - Male MH - Mice MH - *Trisomy EDAT- 1995/09/15 00:00 MHDA- 1995/09/15 00:01 CRDT- 1995/09/15 00:00 PHST- 1995/09/15 00:00 [pubmed] PHST- 1995/09/15 00:01 [medline] PHST- 1995/09/15 00:00 [entrez] AID - 10.1002/cyto.990220309 [doi] PST - ppublish SO - Cytometry. 1995 Sep 15;22(3):217-22. doi: 10.1002/cyto.990220309.