Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2006-11-20
pubmed:abstractText
The translocation t(12;22) involves MN1 and TEL and is rarely found in acute myeloid leukemia (AML). Recently, it has been shown in a mouse model that the fusion protein MN1-TEL can promote growth of primitive hematopoietic progenitor cells (HPCs) and, in cooperation with HOXA9, induce AML. We quantified MN1 expression by real-time reverse transcriptase-polymerase chain reaction (RT-PCR) in 142 adult patients with AML with normal cytogenetics treated uniformly in trial AML-SHG 01/99. AML samples were dichotomized at the median MN1 expression. High MN1 expression was significantly correlated with unmutated NPM1 (P < .001), poor response to the first course of induction treatment (P = .02), a higher relapse rate (P = .03), and shorter relapse-free (P = .002) and overall survivals (P = .03). In multivariate analysis, MN1 expression was an independent prognostic marker (P = .02) in addition to age and Eastern Cooperative Oncology Group (ECOG) performance status. Excluding patients with NPM1(mutated)/FLT3ITD(negative), high MN1 expression was associated with shorter relapse-free survival (P = .057). MN1 was highly expressed in some patients with acute lymphoblastic but not chronic lymphocytic or myeloid leukemia. MN1 was highly expressed in HPCs compared with differentiated cells and was down-regulated during in vitro differentiation of CD34(+) cells, suggesting a functional role in HPCs. In conclusion, our data suggest MN1 overexpression as a new prognostic marker in AML with normal cytogenetics.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
108
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3898-905
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:16912223-Adolescent, pubmed-meshheading:16912223-Adult, pubmed-meshheading:16912223-Animals, pubmed-meshheading:16912223-Cytogenetic Analysis, pubmed-meshheading:16912223-Disease-Free Survival, pubmed-meshheading:16912223-Female, pubmed-meshheading:16912223-Gene Expression Regulation, Leukemic, pubmed-meshheading:16912223-Homeodomain Proteins, pubmed-meshheading:16912223-Humans, pubmed-meshheading:16912223-Leukemia, Lymphocytic, Chronic, B-Cell, pubmed-meshheading:16912223-Leukemia, Myelogenous, Chronic, BCR-ABL Positive, pubmed-meshheading:16912223-Leukemia, Myeloid, Acute, pubmed-meshheading:16912223-Male, pubmed-meshheading:16912223-Mice, pubmed-meshheading:16912223-Middle Aged, pubmed-meshheading:16912223-Oncogene Proteins, Fusion, pubmed-meshheading:16912223-Predictive Value of Tests, pubmed-meshheading:16912223-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:16912223-Survival Rate, pubmed-meshheading:16912223-Transcription Factors, pubmed-meshheading:16912223-Tumor Markers, Biological, pubmed-meshheading:16912223-Tumor Suppressor Proteins
pubmed:year
2006
pubmed:articleTitle
High meningioma 1 (MN1) expression as a predictor for poor outcome in acute myeloid leukemia with normal cytogenetics.
pubmed:affiliation
British Columbia Cancer Research Centre, 675 West 10th Ave, Vancouver, BC, Canada. heuser.michael@mh-hannover.de
pubmed:publicationType
Journal Article, Clinical Trial, Comparative Study, Research Support, Non-U.S. Gov't