Understanding the development of MLL-Rearranged leukemias : developing disease models
Rearrangements involving the mixed lineage leukemia gene (MLL) are found in majority of human infant leukemias (>60% of ALLs, 35% of AMLs) and are associated with dismal prognosis of these patients. They are also found in a small percentage of childhood and adult leukemias (10% cases), making MLL...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/565405 |
| Acceso en línea: | http://hdl.handle.net/10803/565405 |
| Access Level: | acceso abierto |
| Palabra clave: | Infant leukemias MLL-rearrangements Chromosomal translocation Transgenic mice Leukemia models Leucemia del lactante Reordenamiento del gen MLL Translocación cromosómica Los ratones transgénicos Modelo de leucemia 575 |
| Sumario: | Rearrangements involving the mixed lineage leukemia gene (MLL) are found in majority of human infant leukemias (>60% of ALLs, 35% of AMLs) and are associated with dismal prognosis of these patients. They are also found in a small percentage of childhood and adult leukemias (10% cases), making MLL-rearranged leukemias ideal for this study. We performed induction of the leukemic MLL-ENL chromosomal translocation in hematopoietic cells at different developmental stages i.e., fetal liver (FL, E12.5) and bone marrow (BM, P60) to develop disease models that can recapitulate human infant and adult leukemias respectively. After evaluating several models to induce MLL-ENL recombination, we have reproducibly obtained leukemia in adult animals with the interferon inducible Mx1-Cre line. The embryonic model of MLL-ENL leukemia was also developed with partial success and it is more aggressive compared to the adult leukemia. In conclusion, we have developed a novel embryonic leukemia model to study infant leukemia ontogeny. |
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