T-cell lymphoblastic leukemia in early childhood presents NOTCH1 mutations and MLL rearrangements
| Autor: | Rocio Hassan, Lilian Brewer, Maria S. Pombo-de-Oliveira, Alessandra Splendore, Mariana Emerenciano, Marcela B. Mansur |
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| Rok vydání: | 2010 |
| Předmět: |
Male
Oncology Cancer Research medicine.medical_specialty Lymphoblastic Leukemia T cell Precursor T-Cell Lymphoblastic Leukemia-Lymphoma Leukemogenic hemic and lymphatic diseases Internal medicine Humans Medicine Genetic Testing Early childhood Receptor Notch1 Latency (engineering) Chromosome Aberrations Gene Rearrangement Genetics business.industry Genes T-Cell Receptor gamma Infant Histone-Lysine N-Methyltransferase Hematology Standard methods Cell Transformation Neoplastic medicine.anatomical_structure Child Preschool Mutation Flt3 mutation Female business Myeloid-Lymphoid Leukemia Protein Genes T-Cell Receptor delta |
| Zdroj: | Leukemia Research. 34:483-486 |
| ISSN: | 0145-2126 |
| DOI: | 10.1016/j.leukres.2009.06.026 |
| Popis: | T-cell acute lymphoblastic leukemia (T-ALL) may affect children in very early age. However, the critical events leading to this brief latency is still unclear. We used standard methods to explore NOTCH1 mutations and other specific molecular markers in 15 early childhood T-ALL cases. Most of them consisted of immature differentiation subtype. Despite being found in a lower frequency than that described for overall pediatric T-ALL, NOTCH1 alterations were the most frequent ones. Other alterations included MLL+ (n = 4), SIL-TAL1+ (n = 3), FLT3 mutation (n = 1) and HOX11L2+ (n = 1). Our results suggest that NOTCH1 and MLL abnormalities are primary leukemogenic hits in early T-ALL. |
| Databáze: | OpenAIRE |
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