PMID- 11426530 OWN - NLM STAT- MEDLINE DCOM- 20010906 LR - 20190116 IS - 1042-8194 (Print) IS - 1026-8022 (Linking) VI - 40 IP - 5-6 DP - 2001 Feb TI - Secondary chromosome changes in mantle cell lymphoma: cytogenetic and fluorescence in situ hybridization studies. PG - 581-90 AB - To better define the incidence and nature of secondary chromosome anomalies in mantle cell lymphoma (MCL) carrying the t(11:14)/BCL1 rearrangement, cytogenetic and fluorescence in situ hybridization studies (FISH) were performed in 42 patients (39 classical histology, 3 blastoid variant), using 6q21, 9p21/p16, 13q14, 17p13/p53 and chromosome-12-specific probes. Karyotypes from 89 cases published in 5 recent series including patients diagnosed in a homogeneous fashion were reviewed. In our series, FISH confirmed the interpretation of the karyotype in all cases and disclosed cryptic chromosome deletions in a sizeable fraction of cases. One patient (2.4% of total) was found with a cryptic 9p21 deletion by FISH. Two cases (4.8%) had a 6q21 deletion at CCA and at FISH; +12 was found in three cases by CCA plus nine by FISH (28.6%); 13q14 deletion was found in six cases by CCA plus 16 by FISH (52.4%), 17p13 deletion in three cases by CCA plus 8 by FISH (26.2%). In 131 patients (42 present series plus 89 in the literature) secondary chromosome aberrations seen by conventional cytogenetic analysis in more than 5 cases included deletions/translocations (del/t) 6q15-23 [15 cases]; -13 [14 cases]; del/t 1p21-31 [12 cases]; +3q [11 cases]; del/t 17p [9 cases]; 8p translocations and del(Y) [8 cases each]; -20 [7 cases]; 13q14 deletion, del/t 11q22-23, del/t 9q, del(10)(q22q24), -20, -21, -22 and -X [6 cases each]. We arrived at the following conclusions: i) though no secondary anomaly is specific for MCL, there is a distinct profile of recurrent chromosome lesions in MCL with 1p21-31 deletions, 8p translocations, 11q22-23 anomalies having a strong association with CD5+ B-cell lymphomas of low-to-intermediate grade histology; ii) FISH enabled the detection of cryptic chromosome 12, 13q and 17p rearrangements in a sizeable fraction of cases; iii) 9p21/p16 deletions did not occur at a high incidence in this series, possibly because of the low number of cases with blastoid variant. FAU - Bigoni, R AU - Bigoni R AD - Institute of Haematology, University of Ferrara, Italy. FAU - Cuneo, A AU - Cuneo A FAU - Milani, R AU - Milani R FAU - Roberti, M G AU - Roberti MG FAU - Bardi, A AU - Bardi A FAU - Rigolin, G M AU - Rigolin GM FAU - Cavazzini, F AU - Cavazzini F FAU - Agostini, P AU - Agostini P FAU - Castoldi, G AU - Castoldi G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Leuk Lymphoma JT - Leukemia & lymphoma JID - 9007422 SB - IM MH - *Chromosome Aberrations MH - Humans MH - In Situ Hybridization MH - Karyotyping MH - Lymphoma, Mantle-Cell/*genetics MH - Time Factors EDAT- 2001/06/28 10:00 MHDA- 2001/09/08 10:01 CRDT- 2001/06/28 10:00 PHST- 2001/06/28 10:00 [pubmed] PHST- 2001/09/08 10:01 [medline] PHST- 2001/06/28 10:00 [entrez] AID - 10.3109/10428190109097656 [doi] PST - ppublish SO - Leuk Lymphoma. 2001 Feb;40(5-6):581-90. doi: 10.3109/10428190109097656.