MYELODYSPLASTIC SYNDROME
|
0.500 |
Biomarker
|
group |
HPO |
|
|
|
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
The 3;21 translocation in myelodysplasia results in a fusion transcript between the AML1 gene and the gene for EAP, a highly conserved protein associated with the Epstein-Barr virus small RNA EBER 1.
|
8395054 |
1993 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
Two genes have been implicated in leukemias of patients with abnormalities of chromosome 3, band q26: EVI1, which can be activated over long distances by chromosomal rearrangements involving 3q26, and EAP, a ribosomal gene that fuses with AML1 in a therapy-related myelodysplasia patient with a t(3;21)(q26.2;q22).
|
8171026 |
1994 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
Using this approach, patients with t(8;21) (three patients with de novo AML, one with therapy-related AML, and one patient with myelodysplasia) yielded the same 222 base pair PCR product, suggesting that the breakpoints occurred at the same AML1 and ETO introns as previously reported.
|
7828132 |
1995 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
AlteredExpression
|
group |
BEFREE |
This result suggests that the high incidence of Evi-1 expression which remains at low levels in RAEB and RAEBt is not a major determinant of ineffective erythropoiesis and myelopoiesis in MDS.
|
7845018 |
1995 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
AlteredExpression
|
group |
BEFREE |
EVI-1 expression was also detected in a subset of acute myeloid leukaemias (AMLs) and myelodysplasia.
|
8932329 |
1996 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
AlteredExpression
|
group |
BEFREE |
In summary, the results show that the defects in the erythroid development in a subpopulation of patients with myelodysplasia is localized at an early stage of the erythroid differentiation and is associated with the persistent expression of the CD34 antigen and, in some cases, with the expression of Evi-1.
|
8695798 |
1996 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
The chromosome region 21q22, where AML1 maps, is involved in several other karyotypic aberrations, such as the t(3;21) translocation associated with a subset of therapy-related myelodysplastic syndromes and AML, and the blast phase of chronic myelogenous leukemia.
|
9234595 |
1997 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
Activation of the Evi-1 gene was first described to be associated with the transformation of murine myeloid leukaemias and has previously been detected in cases of human acute myeloid leukaemia (AML) and chronic myeloid leukaemia (CML) in blast crises and in myelodysplastic syndromes.
|
9432037 |
1997 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
AlteredExpression
|
group |
BEFREE |
In contrast to previous studies in AML and MDS, the pattern of EVI-1 expression suggests it may facilitate rather than inhibit myeloid differentiation during ATRA treatment.
|
9009083 |
1997 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
This is the first report concerning the t(8;21)(q22;q22) carrying AMLs (de novo AML, MDS-AML and therapy-related AML) to show that the breakpoint at 21q22 is located outside the AML1 gene locus.
|
9401077 |
1997 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
A rare variant translocation t(3;8)(q29;q22) without AML1/ETO fusion transcript in a case of oligoblastic leukemia.
|
9783804 |
1998 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
Biomarker
|
group |
BEFREE |
Fluorescence in situ hybridization showed the amplification of the AML1 gene on regions derived from chromosome 21, providing the first evidence of amplification involving this gene in MDS.
|
10534769 |
1999 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
AlteredExpression
|
group |
BEFREE |
Abnormal expression of the Evi-1 gene and overexpression of MDS1-Evi-1 gene may play a role in the pathogenesis or progression of MDS and post-MDS AML.
|
11721451 |
1999 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
AlteredExpression
|
group |
BEFREE |
Constitutive expression of Evi-1 in hematopoietic cells, which is caused by retroviral insertions or chromosomal translocations and inversions, is closely associated with myelogenous leukemias and myelodysplastic syndromes in mice and humans.
|
10641791 |
1999 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
At the time of conversion to MDS, the patient had 46 chromosomes, with an 11q23/MLL translocation involving a new partner breakpoint at 2p23 and a 21q22/CBFA2 translocation involving a new partner breakpoint at 6p22.
|
10825008 |
2000 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
This study is the first report that describes mutations of AML1 in patients with MDS and the mechanism whereby the mutant acts as a dominant negative inhibitor of wild-type AML1.
|
11049997 |
2000 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
Therefore, we sequenced all exons of the AML-1 gene in 15 patients with MDS/AML and deleted chromosome 5q or 7q, respectively.
|
11261327 |
2001 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
Hitherto, amplification of the proto-oncogene AML1-also in form of a ring chromosome-has been described recently only in one patient with myelodysplastic syndrome (MDS).
|
11165321 |
2001 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
In this review, we summarize mutational changes of the AML1 gene in hematological malignancies, especially in MDS and discuss the mechanism whereby the mutant acts as a dominant negative inhibitor of wild-type AML1.
|
12002768 |
2002 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
Biomarker
|
group |
BEFREE |
AML1/RUNX1 at 21q22 is involved in t(8;21), t(3;21), and t(16;21) in de novo and therapy-related AML and myelodysplastic syndrome as well as in t(12;21) in childhood B cell acute lymphoblastic leukemia.
|
11867721 |
2002 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
Unlike AML1, CBFbeta gene is not deregulated by point mutations in acute myeloid leukemia and in myelodysplastic syndromes.
|
11986246 |
2002 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
BEFREE |
Somatically acquired point mutations of AML1/RUNX1 gene have been recently identified in rare cases of acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS).
|
12393679 |
2003 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
Biomarker
|
group |
BEFREE |
AML1 is frequently affected in leukemia and myelodysplastic syndrome with 21q22 translocations.
|
12874780 |
2003 |
MYELODYSPLASTIC SYNDROME
|
0.500 |
GeneticVariation
|
group |
LHGDN |
High incidence of somatic mutations in the AML1/RUNX1 gene in myelodysplastic syndrome and low blast percentage myeloid leukemia with myelodysplasia.
|
14615365 |
2004 |