76
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Michaux L, Dierlamm J, Wlodarska I, Stul M, Bosly A, Delannoy A, Louwagie A, Mecucci C, Cassiman JJ, van den Berghe H. Trisomy 3 is a consistent chromosome change in malignant lymphoproliferative disorders preceded by cold agglutinin disease. Br J Haematol 1995; 91:421-4. [PMID: 8547087 DOI: 10.1111/j.1365-2141.1995.tb05315.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Cold-antibody autoimmune haemolytic anaemia is a rare entity that has been associated with a wide variety of pathological processes, including malignant lymphoproliferative disorders. In this retrospective study we recorded, as far as possible, clinical, haematological, immunological, morphological, pathological, cytogenetic and molecular data on 10 patients with cold agglutinin disease (CAD). Cytogenetic anomalies were found in four cases in which an underlying lymphoma could be evidenced. Trisomy 3 was the only recurrent aberration in our series. It was observed in all patients with abnormal karyotype, either as a complete trisomy or as a partial trisomy of the long arm. The importance of this particular karyotypic aberration in the monitoring of CAD is emphasized.
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77
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Wlodarska I, De Wolf-Peeters C, Michaux L, Mecucci C, Verhoef G, Cassiman JJ, Van den Berghe H. A new t(2;5) translocation in a null cell type CD30 positive anaplastic large cell lymphoma case. Leukemia 1995; 9:1685-8. [PMID: 7564510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Anaplastic large cell lymphoma (ALCL) expressing the CD30 antigen is an uncommon subtype of non-Hodgkin's lymphoma characterized by distinct morphological and clinical features. The recurrent chromosomal abnormality found in these tumours is a t(2;5)(p23;q35) which has been detected in a minority of these cases, predominantly with a T cell immunophenotype. We report here a CD30 positive null cell type ALCL case cytogenetically characterized by a new type of t(2;5) translocation with distinct breakpoints at 2q37 and 5q31. FISH with a panel of 5q specific DNA probes applied in this case allowed for a mapping of a 5q31 breakpoint region between the locus for IL-3 (proximally) and CI5-56 probe (distally). These results point to a localization of unknown gene(s) on the long arm of chromosome 5 that, in addition to the NPM gene at 5q35, may be involved in the pathogenesis of some CD30+ ALCL.
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78
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Wlodarska I, Mecucci C, Stul M, Michaux L, Pittaluga S, Hernandez JM, Cassiman JJ, De Wolf-Peeters C, Van den Berghe H. Fluorescence in situ hybridization identifies new chromosomal changes involving 3q27 in non-Hodgkin's lymphomas with BCL6/LAZ3 rearrangement. Genes Chromosomes Cancer 1995; 14:1-7. [PMID: 8527378 DOI: 10.1002/gcc.2870140102] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Twelve B-cell non-Hodgkin's lymphomas with BCL6/LAZ3 rearrangement selected from a series of 30 lymphomas with cytogenetically detectable 3qter abnormalities were characterized at the histological, clinical, and cytogenetic levels, including fluorescence in situ hybridization (FISH) analysis, which was performed in all cases but one. A classical t(3;14) and t(3;22) were found in three patients (25%). In the remaining cases, eleven different 3q27 abnormalities were demonstrated and characterized with the use of chromosome painting. Seven of twelve "variant" rearrangements identified in our series affecting 1p32, 1p34, 3p14, 6q23, 12p13, 14q11, and 16p13 have not been reported before. Moreover, involvement of both homologs of chromosome 3 in distinct translocations was detected as an unexpected result in two cases and was confirmed via FISH in a third case. The putative bichromosomal rearrangements of the 3q27 region were evidenced by Southern analysis in one of these cases. In another case, FISH with a cosmid spanning the 3q27 breakpoint region demonstrated the involvement of BCL6/LAZ3 only in one of two t(3q27). In our series, which was selected on cytogenetic and molecular criteria, 50% (6 of 12) of cases with BCL6/LAZ3 rearrangement were diagnosed as diffuse, large B-cell lymphomas (DLCL). Another 33% (4 of 12) of cases were diagnosed as follicular center lymphomas (FL), with t(14;18)/BCL2 rearrangement in all but one case. Furthermore, in three follicular lymphoma cases in which multiple samples were analyzed, the disease showed no evidence of histological progression during a follow-up period of 3-14 years.(ABSTRACT TRUNCATED AT 250 WORDS)
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79
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Criel A, Mecucci C, Wlodarska I, Meeus P, Stul M, Cassiman JJ, Louwagie A, Van Hoof A, Hidajat M, Van den Berghe H. Trisomy 12 does not correlate with EBV infection in chronic B-cell leukemias. CANCER GENETICS AND CYTOGENETICS 1995; 82:80-1. [PMID: 7627941 DOI: 10.1016/0165-4608(94)00272-d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
MESH Headings
- Base Sequence
- Chromosomes, Human, Pair 12
- DNA Primers/chemistry
- DNA, Viral/analysis
- Herpesviridae Infections/pathology
- Herpesvirus 4, Human/genetics
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/microbiology
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Molecular Sequence Data
- Trisomy
- Tumor Virus Infections/pathology
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80
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Hernández JM, Mecucci C, Beverloo HB, Selleri L, Wlodarska I, Stul M, Michaux L, Verhoef G, Van Orshoven A, Cassiman JJ. Translocation (11;15)(q23;q14) in three patients with acute non-lymphoblastic leukemia (ANLL): clinical, cytogenetic and molecular studies. Leukemia 1995; 9:1162-6. [PMID: 7630191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report on three patients with acute non-lymphoblastic leukemia (ANLL) displaying the same chromosomal translocation t(11;15)(q23;q14). The clinical course of the disease was aggressive, and survival was short. The FAB subtype was M-2 in two cases, and M-1 in the remaining patient. Immunologically two cases showed aberrant expression of a lymphoid antigen (CD19 and TdT, respectively). HTRX1/MLL gene was rearranged in one patient studied at the time of diagnosis. These results plus data scattered in the literature show that the t(11;15)(q23;q14) can be added to the list of recurrent rearrangements in ANLL involving 11q23.
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81
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Michaux L, Wlodarska I, Mecucci C, Hernandez JM, Van Orshoven A, Michaux JL, Van den Berghe H. Characterization by chromosome painting of balanced and unbalanced X chromosome translocations in myelodysplastic syndromes. CANCER GENETICS AND CYTOGENETICS 1995; 82:17-22. [PMID: 7627929 DOI: 10.1016/0165-4608(94)00283-h] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Structural anomalies of the X chromosome, especially translocations, are rare events in myelodysplastic syndromes (MDS). In a series of 2270 MDS patients analyzed between 1983 and 1994 (Center for Human Genetics, Leuven), 9 cases were found with translocations involving the X chromosome. These aberrations were not restricted to specific FAB subtypes and were the sole anomalies in 3 cases. In the remaining 6 patients, they were associated with other abnormalities, including 5q-, observed in three cases. Fluorescence in situ hybridization (FISH) was retrospectively performed on 8 patients and was shown to be a useful complement for the characterization of the translocations involving the X chromosome. In 3 cases, we could identify translocation partners and breakpoint regions only by using chromosome painting. No recurrent chromosome partners were observed. The breakpoints could be localized along the whole X chromosome. There was, however, a cluster in the Xq13 region involved in 4 of the 9 patients. The previously reported association of Xq13 anomalies with refractory anemia with ringed sideroblasts (RARS) was found in only one case. Despite the lack of characteristic translocations involving the X chromosome, the occurrence of such changes as the sole karyotypic anomaly suggests that they could play a role in the pathogenesis of some myelodysplastic syndromes.
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82
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Wlodarska I, Mecucci C, Marynen P, Guo C, Franckx D, La Starza R, Aventin A, Bosly A, Martelli MF, Cassiman JJ. TEL gene is involved in myelodysplastic syndromes with either the typical t(5;12)(q33;p13) translocation or its variant t(10;12)(q24;p13). Blood 1995; 85:2848-52. [PMID: 7742547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
A t(5;12)(q33;p13) translocation is a recurrent chromosome abnormality in a subgroup of myeloid malignancies with features of both myeloproliferative disorders and myelodysplastic syndromes (MDSs). The molecular consequence of a t(5;12) is a fusion between the platelet-derived growth factor receptor-B gene on chromosome 5 and a novel ETS-like gene, TEL, on chromosome 12. We report on three patients with a t(5;12)(q33;p13) diagnosed as chronic myelomonocytic leukemia, and one case of a t(10;12)(q24;p13) in a progressive MDS, with eosinophilia and monocytosis. Involvement of the TEL gene in these chromosome translocations was investigated by fluorescence in situ hybridization (FISH) with cosmid probes containing selectively the 5' end or 3' end of TEL. Hybridization of these cosmids to the der(5)/der(10) or a der(12), respectively, demonstrated a rearrangement of TEL in both translocations, showing that the t(10;12) is a variant translocation of the t(5;12). Cloning of the fusion cDNA of one case of t(5;12) showed that the breakpoint occurred at the RNA level at exactly the same position as reported by Golub et al (Cell 77:307, 1994). In addition, the TEL gene on chromosome 12 could be localized between two probes previously mapped to 12p13, namely PRB1 and D12S178, leading to a better definition of the position of TEL in this chromosome region. Moreover, in the case involving chromosome 10, the breakpoint occurred between cKTN206 and cKTN312/LYT-10 at 10q24. Clinicohematological data in these studies as well as the restriction mapping of chromosomal breakpoints strongly suggest that (1) common features in MDSs involving the TEL gene are monocytosis and eosinophilia, (2) chromosomes other than no. 5 may be involved and at least a t(10;12)(q24;p13) variant chromosome translocation does exist in these MDSs, and (3) both standard and variant 12p/TEL translocations may be identified by FISH with appropriate probes.
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MESH Headings
- Adult
- Aged
- Base Sequence
- Chromosome Aberrations/genetics
- Chromosome Disorders
- Chromosomes, Human, Pair 10
- Chromosomes, Human, Pair 12
- Chromosomes, Human, Pair 5
- DNA Primers/chemistry
- DNA, Neoplasm/genetics
- DNA-Binding Proteins/genetics
- Humans
- In Situ Hybridization, Fluorescence
- Leukemia, Myelomonocytic, Chronic/genetics
- Male
- Middle Aged
- Molecular Sequence Data
- Myelodysplastic Syndromes/genetics
- Proto-Oncogene Proteins c-ets
- RNA, Neoplasm/genetics
- Receptors, Platelet-Derived Growth Factor/genetics
- Repressor Proteins
- Transcription Factors/genetics
- Translocation, Genetic
- ETS Translocation Variant 6 Protein
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83
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Pittaluga S, Wlodarska I, Stul MS, Thomas J, Verhoef G, Cassiman JJ, Van den Berghe H, de Wolf-Peeters C. Mantle cell lymphoma: a clinicopathological study of 55 cases. Histopathology 1995; 26:17-24. [PMID: 7713480 DOI: 10.1111/j.1365-2559.1995.tb00615.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A recently described unifying proposal for mantle cell lymphoma has led to the formulation of strict diagnostic criteria based on morphology, immunology and molecular data to define this specific entity. Previous studies were often based on broader definitions such as centrocytic lymphoma, intermediately differentiated lymphoma or mantle zone lymphoma and, therefore, included a variety of entities with some, but not all, features ascribed to the mantle cell lymphoma. Since the publication of the unifying proposal no comprehensive studies have been published to confirm and support it. We selected 55 cases of mantle cell lymphoma collected in our institution in order to evaluate the validity of the proposal and, by using strict criteria, we analysed the morphological features, their variations and the changes occurring in the course of the disease as well as its clinical behaviour. The analysis of this material demonstrates that mantle cell lymphoma affects predominantly elderly males presenting with an advanced stage of disease. Twenty-four out of 55 patients died with, or of, the disease with a median survival of 32 months, even though most of them received aggressive chemotherapy. In all cases the histological features were strikingly uniform and most cases had a diffuse growth pattern. The neoplastic cells corresponded to small cleaved cells with a minimal variation in shape and size from one case to the other. The phenotype of the neoplastic cells was remarkably constant with expression of several pan-B cell markers, IgM, IgD and CD5, and lack of CD10 and CD23.(ABSTRACT TRUNCATED AT 250 WORDS)
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84
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Wlodarska I, Mecucci C, De Wolf-Peeters C, Verhoef G, Weier HU, Cassiman JJ, Van Den Berghe H. "Jumping" translocation of 9q in a case of follicular lymphoma. CANCER GENETICS AND CYTOGENETICS 1994; 76:140-4. [PMID: 7923064 DOI: 10.1016/0165-4608(94)90465-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Cytogenetic and fluorescence in situ hybridization (FISH) studies on a t(14;18)-positive follicular lymphoma presenting a remarkable pattern of secondary chromosomal changes are reported. Chromosome analysis of a lymph node biopsy performed at diagnosis revealed the presence of four related subclones characterized by the (14;18) translocation alone or together with one of the following anomalies: add(1)(p36), add(13)(q34), or der(12)(12;13)(q24;q14)add(13)(q34). The chromosome 9 origin of the extra material on the abnormal chromosomes 1 and 13 was demonstrated by FISH and points to "jumping" translocation in the present case.
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85
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Cuneo A, Bigoni R, Balboni M, Carli MG, Piva N, Fagioli F, Latorraca A, Wlodarska I, van den Berghe H, Castoldi G. Trisomy 12 in chronic lymphocytic leukemia and hairy cell leukemia: a cytogenetic and interphase cytogenetic study. Leuk Lymphoma 1994; 15:167-72. [PMID: 7858495 DOI: 10.3109/10428199409051693] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Fluorescent in situ hybridization (FISH) with a chromosome 12-specific pericentromeric probe was performed in 42 patients with B-cell chronic lymphocytic leukemia (CLL) and in 10 patients with hairy cell leukemia (HCL). In all cases, a normal karyotype in more than 10 metaphase cells was obtained by conventional chromosome study. FISH documented that 6/42 patients with CLL in fact had trisomy 12 in 15-49% interphase cells. Sequential FISH studies were performed in 2 cases, showing an increase of percentage of trisomic cells over a 2-month to 4-year period. Two out of 10 patients with HCL, one of whom had morphologic features consistent with a diagnosis of HCL variant, showed 5.5 and 10% interphase nuclei with three fluorescent signals, a finding suggestive of the presence of trisomy 12. Combined immunophenotyping and FISH staining in these patients with HCL documented that trisomic cells were CD11c-positive, CD13-negative, and CD2-negative. We conclude that FISH is a sensitive technique allowing for the detection of trisomy 12 in a fraction of cytogenetically normal patients affected with CLL and HCL.
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MESH Headings
- Aged
- Aged, 80 and over
- Antigens, CD/analysis
- Antigens, Neoplasm/analysis
- Chromosomes, Human, Pair 12
- Female
- Humans
- Immunophenotyping
- In Situ Hybridization, Fluorescence
- Interphase
- Leukemia, Hairy Cell/genetics
- Leukemia, Hairy Cell/pathology
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Male
- Middle Aged
- Trisomy
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86
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Criel A, Wlodarska I, Meeus P, Stul M, Louwagie A, Van Hoof A, Hidajat M, Mecucci C, Van den Berghe H. Trisomy 12 is uncommon in typical chronic lymphocytic leukaemias. Br J Haematol 1994; 87:523-8. [PMID: 7993792 DOI: 10.1111/j.1365-2141.1994.tb08307.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The incidence of trisomy 12 was studied by conventional chromosome analysis in 111 patients referred as B-cell chronic lymphocytic leukaemia (B-CLL). Fluorescent in situ hybridization (FISH) was also applied in 34 of those patients with either a normal karyotype or no analysable mitoses. By karyotyping, trisomy 12 was present in 11.7% (13/111), whereas additional FISH increased the incidence to 14.4% (16/111). When subdividing our cases in either typical CLL (n = 90), fulfilling the FAB classification criteria, or atypical CLL (n = 21), with one or more variations from those criteria, the incidence of +12 by metaphase analysis was 3% and 48%, respectively. Additional FISH increased the incidence to 4% and 57%. The most common aberration in atypical CLL was FMC7 positivity (n = 11), followed by CD5 negativity (n = 8), strong surface immunoglobulin staining (n = 7) and atypical morphology (n = 6). Trisomy 12 could only be demonstrated in a small proportion of neoplastic cells in all positive cases. By FISH and/or karyotyping, all available samples at diagnosis of the disease were positive.
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87
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Wlodarska I, Stul M, De Wolf-Peeters C, Verhoef G, Mecucci C, Cassiman JJ, Van den Berghe H. t(1;19) without detectable E2A rearrangements in two t(14;18)-positive lymphoma/leukemia cases. Genes Chromosomes Cancer 1994; 10:171-6. [PMID: 7522039 DOI: 10.1002/gcc.2870100304] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Translocation t(1;19)(q23;p13) plays a crucial role in the pathogenesis of childhood pre-B cell leukemia and results in the formation of a fusion gene E2A-PBX1 that encodes a hybrid transcription factor with oncogenic potential. Here we describe two cases, one follicular lymphoma and one acute lymphoblastic leukemia/lymphoma, characterized by a complex karyotype including t(14;18), t(8;14), as well as t(1;19). Molecular studies in both cases failed to show rearrangements of the E2A gene. These results suggest that the t(1;19) found as a secondary chromosome change in t(14;18)-positive lymphoma/leukemia might be a molecular variant of the t(1;19) that is typical of childhood pre-B cell leukemia.
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MESH Headings
- Blotting, Southern
- Burkitt Lymphoma/genetics
- Chromosomes, Human, Pair 1
- Chromosomes, Human, Pair 14
- Chromosomes, Human, Pair 18
- Chromosomes, Human, Pair 19
- Cloning, Molecular
- DNA-Binding Proteins/genetics
- Female
- Gene Rearrangement
- Humans
- Karyotyping
- Lymphoma, B-Cell/genetics
- Lymphoma, Follicular/genetics
- Male
- Middle Aged
- TCF Transcription Factors
- Transcription Factor 7-Like 1 Protein
- Transcription Factors
- Translocation, Genetic
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88
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Wlodarska I, De Wolf-Peeters C, Dierick H, Hilliker C, Thomas J, Mecucci C, Cassiman JJ, Van den Berghe H. Detection of amplified sequences at 5q11-->q13 in a homogenously staining region found by fluorescent in situ hybridization in a case of B-cell non-Hodgkin's lymphoma. CYTOGENETICS AND CELL GENETICS 1994; 65:179-83. [PMID: 8222756 DOI: 10.1159/000133627] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Gene amplification is one of the molecular mechanisms possibly involved in the initiation of tumorigenesis. Homogenously staining regions and double minutes have been shown to contain amplified DNA sequences. We report here a case of B-cell non-Hodgkin's lymphoma (NHL) carrying an abnormal chromosome 5 with an hsr-like region at 5q11-->q13. Chromosome "painting" with a chromosome 5-specific library (pBS5) showed that the amplified material was indeed derived from chromosome 5. Further identification of the amplified DNA sequences was performed with a set of YAC probes localized to 5q12-->q14. The amplified region contained genetic loci defined by D5S6, D5S125, D5S112, and D5S39. A three-fold level of DNA amplification was visualized by Southern blotting using a DNA probe from the amplified region. The present results suggest that unknown gene(s) at 5q11-->q13 might be involved in the process of lymphomagenesis when amplification occurs.
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89
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Wlodarska I, Schoenmakers E, Kas K, Merregaert J, Lemahieu V, Weier U, Van den Berghe H, Van de Ven WJ. Molecular mapping of the chromosome 11 breakpoint of t(11;17)(q13;q21) in a t(11;14)(q13;q32)-positive B non-Hodgkin's lymphoma. Genes Chromosomes Cancer 1993; 8:224-9. [PMID: 7512365 DOI: 10.1002/gcc.2870080404] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The FAU gene is the cellular homologue of the viral FOX sequences in the genome of the Finkel-Biskis-Reilly murine sarcoma virus (FBR-MuSV); the viral FOX sequences have been shown to increase the transforming capacity of FBR-MuSV in vitro. The human FAU gene has recently been isolated, characterized, and mapped to chromosome band 11q13. Here, we report results of fluorescence in situ hybridization (FISH) analysis which indicate that the FAU gene maps proximally to the putative oncogene BCL1 at 11q13. Furthermore, we identified a t(11;17)(q13;q21) translocation in tumor cells of a t(11;14)(q13;q32)-positive B-cell non-Hodgkin's lymphoma patient by FISH analysis using a FAU containing cosmid clone as molecular probe and by double-colour chromosome painting analysis using chromosome 11- and chromosome 17-specific painting probes. The position of the chromosome 11 breakpoint of the t(11;17) translocation was pinpointed to a human DNA region around the FAU gene of about 40 kbp.
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MESH Headings
- Chromosome Mapping
- Chromosomes, Human, Pair 11/ultrastructure
- Chromosomes, Human, Pair 14/ultrastructure
- Chromosomes, Human, Pair 17/ultrastructure
- DNA Probes
- Humans
- In Situ Hybridization, Fluorescence
- Karyotyping
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Lymphoma, Follicular/genetics
- Male
- Oncogenes
- Ribosomal Proteins/genetics
- Translocation, Genetic
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90
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Wlodarska I, Delabie J, De Wolf-Peeters C, Mecucci C, Stul M, Verhoef G, Cassiman JJ, Van den Berghe H. T-cell lymphoma developing in Hodgkin's disease: evidence for two clones. J Pathol 1993; 170:239-48. [PMID: 8133397 DOI: 10.1002/path.1711700305] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A case of peripheral T-cell lymphoma (PTL) occurring in a patient with Hodgkin's disease (HD) in relapse is described. The second neoplasm developed 25 months after the diagnosis of HD. Cytogenetic analysis on the lymph node biopsy at the time of diagnosis of PTL revealed the co-existence of two distinct, abnormal cell clones. The first clone was characterized by a reciprocal translocation t(5;7)(q13;q35) involving 7q35, namely the TCR-beta gene, as expected in T-cell lymphomas. The second cell clone carried trisomies for chromosomes 2, 5, 7, and 14. By immunophenotypic and molecular analysis as well as by in situ hybridization, it was possible to prove that the malignant T-cells and the Reed-Sternberg cells corresponded to different cell clones, one carrying the structural chromosome abnormalities and one carrying the numerical chromosome anomalies. These results indicate that the present case represented a true composite lymphoma.
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91
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Wlodarska I, Mecucci C, Vandenberghe E, De Wolf-Peeters C, Thomas J, Hilliker C, Schoenmakers E, Stul M, Marynen P, Cassiman JJ. dup(12)(q13----qter) in two t(14;18)-negative follicular B-non-Hodgkin's lymphomas. Genes Chromosomes Cancer 1992; 4:302-8. [PMID: 1377936 DOI: 10.1002/gcc.2870040405] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Two t(14;18)-negative follicular B-non-Hodgkin's lymphomas with the same chromosomal abnormality, dup(12)(q13----qter), are presented. The absence of a BCL2 gene rearrangement was confirmed by molecular studies in both cases. Instead, duplication of a 12q segment was found. Further evidence for the presence of the dup(12)(q13----qter) was found using fluorescence in situ hybridization. dup(12q) may be equivalent to the trisomy 12 originally described in B-chronic lymphocytic leukemia. This chromosome anomaly has also been reported in B-non-Hodgkin's lymphomas, usually in association with other chromosome anomalies and a more aggressive tumor phenotype. Occurrence of dup(12q) in two histologically similar cases of follicular small cleaved-cell lymphoma without a typical t(14;18), suggests that this karyotypic change may play a critical role in some cases of follicle center-cell lymphomas.
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92
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Vandenberghe E, De Wolf Peeters C, Wlodarska I, Stul M, Louwagie A, Verhoef G, Thomas J, Criel A, Cassiman JJ, Mecucci C. Chromosome 11q rearrangements in B non Hodgkin's lymphoma. Br J Haematol 1992; 81:212-7. [PMID: 1643018 DOI: 10.1111/j.1365-2141.1992.tb08209.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The clinical features, morphology and immunophenotype of 20 cases of B non Hodgkin's lymphoma (B-NHL) with chromosome abnormalities involving 11q13-14 were studied, to determine if this abnormality was closely associated with a specific sub-type of B-NHL. A t(11;14)(q13;q32) was found in 11 cases of intermediately differentiated lymphocytic lymphoma (IDLL). A breakpoint in the major translocation cluster of the BCL-1 locus was found in six of these cases. These patients were male with lymphomatous involvement of the bone marrow, marked splenomegaly and frequently had mucosa associated lymphoid tissue involvement. One patient with IDLL had a t(8;11)(p21;q13) and a rearranged BCL-1 locus, suggesting that this may be a variant of t(11;14)(q13;q32). Diagnoses of IDLL, chronic lymphocytic leukaemia, lymphoplasmacytic lymphoma and monocytoid B cell lymphoma were made in all but one of the remaining cases. These cases had either a translocation involving 11q13-14 and various partner chromosomes or an 11q13 deletion. This study demonstrates that 11q abnormalities occur mainly in a group of low-grade B-NHL of non follicle centre cell lineage.
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93
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Cuneo A, Wlodarska I, Sayed Aly M, Piva N, Carli MG, Fagioli F, Tallarico A, Pazzi I, Ferrari L, Cassiman JJ. Non-radioactive in situ hybridization for the detection and monitoring of trisomy 12 in B-cell chronic lymphocytic leukaemia. Br J Haematol 1992; 81:192-6. [PMID: 1643016 DOI: 10.1111/j.1365-2141.1992.tb08206.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Non-radioactive in situ hybridization (NISH) with a chromosome 12-specific alpha satellite probe was performed on 20 patients with chronic lymphocytic leukaemia (CLL) with normal karyotype (15 cases) or with inadequate mitotic yield (5 cases) from mitogen-stimulated cultures. All patients had over 70% lymphocytes coexpressing the CD5/CD23 antigens. While less than 1% interphase nuclei showed three fluorescent spots in 16/20 patients, evidence of trisomy 12 in 15-25% interphase cells was detected in four patients. According to the FAB classification the diagnosis in these patients was typical B-CLL, stage III (Rai's staging system) in one case, CLL/PLL, stage II and III in two cases, PLL, stage III in one case. In order to confirm these results, NISH was repeated after 1 month in one patient and after 2 years in three patients. All patients had been treated with chemotherapy in the period between the two NISH experiments. In all cases a 1.8-3-fold increase of percentage of trisomic interphase cells was detected. These findings suggest that in B-CLL clones with trisomy 12 may have proliferative advantage over clonal B-lymphocyte without +12 and, possibly, that they may be more resistant to chemotherapy. We conclude that NISH is a sensitive technique allowing for the detection and monitoring of trisomy 12 in a fraction of B-CLL patients with normal karyotype or with no analysable mitoses despite employment of polyclonal B-cell mitogens.
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MESH Headings
- Aged
- Chromosomes, Human, Pair 12
- Clone Cells
- DNA Probes
- Evaluation Studies as Topic
- Female
- Humans
- Interphase
- Karyotyping
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Male
- Middle Aged
- Mitosis
- Nucleic Acid Hybridization
- Time Factors
- Trisomy
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94
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Hillion J, Mecucci C, Aventin A, Leroux D, Wlodarska I, Van Den Berghe H, Larsen CJ. A variant translocation t(2;18) in follicular lymphoma involves the 5' end of bcl-2 and Ig kappa light chain gene. Oncogene 1991; 6:169-72. [PMID: 1899478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We have examined three cases of human lymphoma bearing a t(2;18)(p11;q21) chromosome translocation. The bcl-2 gene appeared to be rearranged in all three cases and breakpoints were clustered in the 5' flanking region of the gene. In all three cases, bcl-2 was juxtaposed to J segments of the Ig kappa gene. This juxtaposition of the bcl-2 and Ig kappa genes is very similar to the variant chromosome translocations of Burkitt lymphoma that juxtapose the c-myc locus to IgL genes.
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95
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Vandenberghe E, De Wolf-Peeters C, van den Oord J, Wlodarska I, Delabie J, Stul M, Thomas J, Michaux JL, Mecucci C, Cassiman JJ, Van Den Berghe H. Translocation (11;14): a cytogenetic anomaly associated with B-cell lymphomas of non-follicle centre cell lineage. J Pathol 1991; 163:13-8. [PMID: 2002419 DOI: 10.1002/path.1711630104] [Citation(s) in RCA: 88] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Nine patients with t(11;14) and B non-Hodgkin's lymphomas composed of small to intermediately sized cells with irregular nuclei are described. Immunophenotyping was performed on seven cases, which were M+, D- with light chain restriction, CD5+, CD10-, and CD20+, suggesting that they were non-follicle centre cell lymphomas. The translocation (11;14) (in three cases the only cytogenetic anomaly) was associated with rearrangement of bcl-1 in four of the five cases investigated. Translocation (11;14) has been described in an apparently heterogeneous group of low-grade lymphoid malignancies which we suggest have a non-follicle centre cell lineage in common. This translocation may be associated with these lymphomas in the same way that t(14;18) is associated with follicle centre cell lymphomas.
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96
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Bregula U, Wlodarska I, Wezyk J. Chromosome studies of two transplantable leukemias of BN mice. J Natl Cancer Inst 1979; 62:1051-6. [PMID: 285278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Karyotypes of two transplantable murine ascites leukemias, LBN/a2 and LBN/b3, were studied with the use of the trypsin-Giemsa technique. The original tumors arose in adult female mice of strains BN/a and BN/b after prolonged antilymphocyte globulin administration. The karyotypes of both leukemias showed similar patterns. Both were hyperdiploid with modal chromosome numbers of 41 and 42 in LBN/a2 and LBN/b3, respectively. The cells consisted of an average of 37 normal chromosomes and 4--5 abnormal chromosomes. The most consistent karyotype deviation was monosomy of the X-chromosome and of several autosomes: no. 9, 14, and 7 in the LBN/a2 line and no. 7, 12, 14, and 9 in the LBN/b3 line. In most LBN/b3 cells and in a lower proportion of LBN/a2 cells, trisomy of chromosome no. 15 was found. With regard to the occurrence of abnormal marker chromosomes, both tumors exhibited great cell-to-cell variation. Two of the markers were common to both leukemia lines.
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