Fluorescence in situ hybridization on methylcellulose cultured hematopoietic stem cells from myelodysplastic syndromes
| Autor: | D. Rabineau, Dominique Le Tessier, Pascale Auvinet, Aziza Lebarr, Jean-Michel Dupont, Michaëla Fontenay-Roupie, Olivier Dupuy, Serge Fichelson |
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| Rok vydání: | 1998 |
| Předmět: |
Male
Cancer Research Centromere Chromosome Disorders Methylcellulose Biology hemic and lymphatic diseases Genetics medicine Humans Progenitor cell Molecular Biology Cells Cultured In Situ Hybridization Fluorescence Aged Chromosome Aberrations medicine.diagnostic_test Myelodysplastic syndromes Middle Aged Aneuploidy Hematopoietic Stem Cells medicine.disease Molecular biology Haematopoiesis medicine.anatomical_structure Cell culture Myelodysplastic Syndromes Monoclonal Immunology Female Bone marrow Stem cell Fluorescence in situ hybridization |
| Zdroj: | Cancer Genetics and Cytogenetics. 101:12-15 |
| ISSN: | 0165-4608 |
| Popis: | Myelodysplastic syndromes (MDS) are clonal malignancies characterized by peripheral blood pancytopenia and signs of maturation disturbances of one or several cell lineages in bone marrow. MDS present as chimeras associating normal polyclonal and malignant monoclonal progenitors cells in various proportions. Numerous cytogenetic abnormalities have been reported in MDS and can be detected by fluorescence in situ hybridization (FISH) on interphase cells. We have used this technique on methylcellulose cultured hematopoietic progenitors obtained from three patients suffering from MDS and exhibiting informative karyotypic features. Hematopoietic cells were cultured for 14 days, and individual clones (BFU-E, CFU-GM) were picked up and then cytocentrifuged for FISH analy-sis. We used centromeric probes realized and labeled in our laboratory by PCR to detect aneuploidies for chromosomes 7 and 11 in two patients. Furthermore, we could detect a 5q partial deletion on interphase cells from the third patient using a 5831 specific probe visualized with the HNPP Fluorescent Detection Set from Boehringer Mannheim''. In conclusion, FISH is a helpful method to detect malignant clones in hematopoietic progenitor cultures and hence to study the relative growth of normal vs. leukemic cells in MDS. |
| Databáze: | OpenAIRE |
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