Different breakage-prone regions on chromosome 1 detected in t(11;14)-positive mantle cell lymphoma cell lines and multiple myeloma cell lines are associated with different tumor progession-related mechanisms
| Autor: | Makito Emura, N Emi, Y Matsuo, R Lai, Thomas Liehr, Kristin Mrasek, Cornelia Rudolph, Brigitte Schlegelberger, M Abe, Uwe Claussen, Doris Steinemann, Masanori Daibata |
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| Rok vydání: | 2006 |
| Předmět: |
Male
Cell Chromosomal translocation Lymphoma Mantle-Cell Biology Chromosome aberration Translocation Genetic Cell Line Tumor hemic and lymphatic diseases Genetics medicine Humans Molecular Biology Genetics (clinical) medicine.diagnostic_test Chromosomes Human Pair 11 Breakpoint Chromosome Breakage Karyotype medicine.disease Molecular biology Pleural Effusion medicine.anatomical_structure Chromosomes Human Pair 1 Tumor progression Karyotyping Disease Progression Female Mantle cell lymphoma Lymph Nodes Immunoglobulin Heavy Chains Multiple Myeloma Chromosomes Human Pair 8 Fluorescence in situ hybridization |
| Zdroj: | Cytogenetic and Genome Research. 112:213-221 |
| ISSN: | 1424-859X 1424-8581 |
| Popis: | To better define secondary aberrations that occur in addition to translocation t(11;14)(q13;q32) in mantle cell lymphomas (MCL) and in multiple myelomas (MM), seven t(11;14)-positive MCL cell lines and four t(11;14)-positive MM cell lines were analysed by fluorescence R-banding and spectral karyotyping (SKY). Compared with published data obtained by G-banding, most chromosome aberrations were redefined or further specified. Furthermore, several additional chromosome aberrations were identified. Thus, these cytogenetically well defined t(11;14)-positive MCL and MM cell lines may be useful tools for the identification and characterization of genes that might be involved in the pathogenesis of MCL and MM, respectively. Since MCL and MM were found to have different alterations of chromosome 1, these were investigated in more detail by fluorescence in situ hybridization (FISH) and multicolor banding (MCB) analyses. The most frequently altered and deletion-prone loci in MCL cell lines were regions 1p31 and 1p21. In contrast, breakpoints in MM cell lines most often involved the heterochromatic regions 1p12→p11, and the subcentromeric regions 1q12 and 1q21. These data are in accordance with previously published data of primary lymphomas. Our findings may indicate that different pathways of clonal evolution are involved in these morphologically distinct lymphomas harboring an identical primary chromosome aberration, t(11;14). |
| Databáze: | OpenAIRE |
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