نتایج جستجو برای: 11q23 translocation
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We previously demonstrated that outcome of pediatric 11q23/MLL-rearranged AML depends on the translocation partner (TP). In this multicenter international study on 733 children with 11q23/MLL-rearranged AML, we further analyzed which additional cytogenetic aberrations (ACA) had prognostic significance. ACAs occurred in 344 (47%) of 733 and were associated with unfavorable outcome (5-year overal...
Septins are evolutionarily conserved GTP-binding proteins that can heteropolymerize into filaments. Recent studies have revealed that septins are involved in not only diverse normal cellular processes but also the pathogenesis of various diseases, including cancer. SEPT6 is ubiquitously expressed in tissues and one of the fusion partner genes of MLL in the 11q23 translocations implicated in acu...
Infant acute lymphoblastic leukemia (ALL) with MLL gene rearrangements is characterized by early pre-B phenotype (CD10(-)/CD19(+)) and poor treatment outcome. The t(4;11), creating MLL-AF4 chimeric transcripts, is the predominant 11q23 chromosome translocation in infant ALL and is associated with extremely poor prognosis as compared with other 11q23 translocations. We analyzed an infant early p...
Rearrangements of the MLL gene located at 11q23 are common chromosomal abnormalities associated with acute leukemia (AL), especially infant and secondary leukemia after previous treatment with DNA topoisomerase II inhibitors. 11q23/MLL abnormalities have been widely recognized as an important prognostic factor in AL. Over 70 chromosome partners of 11q23 have been identified to date, at least 50...
Acute lymphoblastic leukemia (ALL) in infants generally shows distinctive biologic features and has a poor prognosis. Cytogenetic studies indicate that many infant leukemias have chromosome 11q23 translocations. Because of these findings and the distinct clinical features of infant leukemia, we investigated 30 cases of infant ALL for molecular defects of 11q23. Fourteen cases had cytogenetic ab...
Acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML) in infants have in common a high incidence of translocations of the MLL gene at chromosome band 11q23. Similar translocations occur in leukemias associated with chemotherapies that target DNA topoisomerase II. MLL has numerous different partner genes. The role of the many MLL fusion proteins in leukemogenesis is not yet underst...
Trisomy 3p23----pter and monosomy 11q23----qter in an infant with two translocation carrier parents.
Human leukemias with chromosomal band 11q23 aberrations that disrupt the MLL/HRX/ALL-1 gene portend poor prognosis. MLL associated leukemias account for the majority of infant leukemia, approximately 10% of adult de novo leukemia and approximately 33% of therapy related acute leukemia with a balanced chromosome translocation. The 500 kD MLL precursor is processed by Taspase1 to generate mature ...
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