Chromosome rearrangements at telomeric level in hematologic disorders
Autor: | Paola Temperani, Umberto Torelli, Giovanna Gandini, Giovanni Emilia, Francesca Giacobbi |
---|---|
Rok vydání: | 1995 |
Předmět: |
Adult
Male Genome instability Cancer Research medicine.medical_specialty Myeloid Cell Biology Immunophenotyping Genetics medicine Humans Molecular Biology Aged Chromosome Aberrations Gene Rearrangement Cytogenetics Chromosome Karyotype Middle Aged Telomere Hematologic Diseases medicine.anatomical_structure Karyotyping Female |
Zdroj: | Cancer Genetics and Cytogenetics. 83:121-126 |
ISSN: | 0165-4608 |
Popis: | Following retrospective screening of our karyotype data from 414 consecutive non-childhood, neoplastic, and preneoplastic hematologic diseases, we have isolated 11 cases with alterations involving one or two chromosome termini, including: a) nonclonal telomeric associations (tas), b) subclonal terminal rearrangements consisting of additional (add) material of unknown origin fused at the end of the chromosome, c) clonal telomere-centromere fusion (t telcen) with pseudodicentric structure. Most of these abnormalities were present in karyotypes with multiple alterations and associated to an evolutive stage of the disease (9 of 94 cases studied in progression, including three of 22 CML studied in blast crisis). The immunophenotype of the cell populations was lymphoid in eight cases, six of which were NHL, and myeloid, erythroid, and undifferentiated in the other three. More data on telomeric abnormalities may clarify whether there is ubiquitous genomic instability of neoplastic cells or an inborn cell lineage predisposition favoring rearrangements involving telomeres. |
Databáze: | OpenAIRE |
Externí odkaz: |