Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2005-4-7
pubmed:abstractText
Del (9q) is a recurrent cytogenetic abnormality in acute myeloid leukaemia (AML). We report an analysis of 81 patients with del(9q) as a diagnostic karyotypic abnormality entered into the Medical Research Council AML trials 10, 11 and 12. Patients were divided into three groups: (i) Sole del (9q), 21 patients; (ii) Del(9q) in association with t(8;21), 29 patients; (iii) Del(9q) in association with other cytogenetic abnormalities, 31 patients. Sole del(9q) was associated with a characteristic bone marrow phenotype at diagnosis: a single Auer rod was found in all cases examined. There was also an association with erythroid dysplasia (74%) and granylocytic lineage vacuolation (90%). The incidence of all three of these features was significantly higher (P < 0.05) in the sole del(9q) group compared with control cases lacking del(9q). The overall survival (OS) of all 81 patients was compared with a control group of 1738 patients with normal cytogenetics entered in the same trials over the period of investigation. The 5-year OS for patients with del(9q) was 45%, compared with 35% for the control group (P = 0.09). Patients with del(9q) in association with t(8;21) had a 5-year OS of 75%, which was significantly better than the groups with either sole del(9q) (40%) and del(9q) with other abnormalities (26%; P = 0.008). Karyotyping indicated a common area of deletion in the region 9q21-22, which was present in 94% of cases. It is likely that the deletion of single or multiple tumour suppressor genes located in this region may underlie the pathogenesis of del (9q) AML.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0007-1048
pubmed:author
pubmed:issnType
Print
pubmed:volume
129
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
210-20
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15813849-Acute Disease, pubmed-meshheading:15813849-Adolescent, pubmed-meshheading:15813849-Adult, pubmed-meshheading:15813849-Aged, pubmed-meshheading:15813849-Bone Marrow Cells, pubmed-meshheading:15813849-Child, pubmed-meshheading:15813849-Child, Preschool, pubmed-meshheading:15813849-Chromosomes, Human, Pair 21, pubmed-meshheading:15813849-Chromosomes, Human, Pair 8, pubmed-meshheading:15813849-Cytogenetic Analysis, pubmed-meshheading:15813849-Disease-Free Survival, pubmed-meshheading:15813849-Female, pubmed-meshheading:15813849-Gene Deletion, pubmed-meshheading:15813849-Genes, Tumor Suppressor, pubmed-meshheading:15813849-Genetic Markers, pubmed-meshheading:15813849-Humans, pubmed-meshheading:15813849-Leukemia, Myeloid, pubmed-meshheading:15813849-Male, pubmed-meshheading:15813849-Middle Aged, pubmed-meshheading:15813849-Survival Rate, pubmed-meshheading:15813849-Translocation, Genetic
pubmed:year
2005
pubmed:articleTitle
Del (9q) AML: clinical and cytological characteristics and prognostic implications.
pubmed:affiliation
Leukaemia Research Fund Molecular Haematology Unit, John Radcliffe Hospital, Oxford, UK. andy.peniket@orh.nhs.uk
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't