نتایج جستجو برای: 11q23 translocation
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INTRODUCTION Recent discoveries of inherited glioma risk loci and acquired IDH mutations are providing new insights into glioma etiology. IDH mutations are common in lower grade gliomas and secondary glioblastomas and uncommon in primary glioblastomas. Because the inherited variant in 11q23 has been associated with risk of lower grade glioma and not with glioblastomas, we hypothesized that this...
Following reports of childhood acute myeloid leukemia (AML) showing that patients with t(9; 11)(p22; q23) have a better prognosis than those with translocations between 11q23 and other chromosomes, we compared response to therapy and survival of 24 adult de novo AML patients with t(9; 11) with those of 23 patients with other 11q23 translocations [t(11q23)]. Apart from a higher proportion of Fre...
To define prognostic factors in infant acute lymphoblastic leukemia (ALL), the outcome of 106 infants (age </=12 months) during 3 consecutive multicenter trials of the Berlin-Frankfurt-Münster group (ALL-BFM 83, 86, and 90) was retrospectively analyzed according to presenting features and early in vivo response to prednisone. The prednisone response was defined as the cytoreduction (number of b...
One of the most common chromosomal breakpoint regions in acute myeloid leukaemia is the chromosome band 11q23. The analysis of this region led to the discovery of the extremely promiscuous MLL gene, in which more than 60 MLL translocation partner genes have been described. Among the most frequent are t(9;11)(p21-22;q23)/MLL-AF9, t(10; 11)(p13; q23)/MLL-AF10, t(11;19)(q23;p13)/MLL-ELL, ENL and t...
Rearrangements involving the MLL gene on chromosome band 11q23 are a hallmark of therapy-related acute myeloid leukemias following treatment with topoisomerase II poisons including etoposide. Therapy-related and de novo genomic translocation breakpoints cluster within a well-characterized 8.3-kb fragment of MLL. Repair of etoposide-stabilized DNA topoisomerase II covalent complexes may initiate...
Recurring, site-specific chromosomal rearrangements are associated with several human syndromes and malignant disorders. Such nonrandom translocations involving chromosome 22 in band q11 are numerous and found to be associated with a diversity of neoplasms as well as constitutional disorders. Chromosome 11 in bands q23-q24 is similarly involved in several types of tumors as well as in a recurri...
The involvement of 11q23-balanced translocations in acute some variability in the breakpoint because it was on the leukemia after treatment with drugs that inhibit the function der(16) in three patients, on the der(11) in another, and split of DNA topoisomerase II (topo II) is being recognized with in four others. We assume that the critical fusion gene is increasing frequency. We and others ha...
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