Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1996-2-13
pubmed:abstractText
Individuals with severe forms of congenital neutropenia suffer from recurrent infections. The therapeutic use of recombinant human granulocyte colony-stimulating factor (rhG-CSF) to increase the neutrophil count is associated with fewer infections and an improved quality of life. However, the long-term effects of this new therapy are largely unknown. In particular, it is unclear if myeloid leukemia, a known complication of some forms of congenital neutropenia, will occur with increased frequency among patients who receive long-term treatment with hematopoietic growth factors. We report 13 patients with congenital disorders of myelopoiesis who developed leukemic transformation with either myelodysplastic syndrome (MDS) or acute myelogenous leukemia (AML) and 1 who acquired a clonal cytogenetic abnormality without evidence of MDS or AML while receiving rhG-CSF. The bone marrows of 10 patients showed monosomy 7 and 5 had activating RAS mutations. These abnormalities were not detected in pretreatment bone marrows and cessation of rhG-CSF was not associated with either clinical improvement or cytogenetic remission. We conclude that patients with severe forms of congenital neutropenia are at relatively high risk of developing MDS and AML. The occurrence of monosomy 7 and RAS mutations in these cases suggests that the myeloid progenitors of some patients are genetically predisposed to malignant transformation. The relationship between therapeutic rhG-CSF and leukemogenesis in patients with severe chronic neutropenia is unclear.
pubmed:grant
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
15
pubmed:volume
86
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4579-86
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:8541548-Adolescent, pubmed-meshheading:8541548-Adult, pubmed-meshheading:8541548-Cell Transformation, Neoplastic, pubmed-meshheading:8541548-Child, pubmed-meshheading:8541548-Child, Preschool, pubmed-meshheading:8541548-Chromosomes, Human, Pair 7, pubmed-meshheading:8541548-Clinical Trials as Topic, pubmed-meshheading:8541548-Clone Cells, pubmed-meshheading:8541548-Cohort Studies, pubmed-meshheading:8541548-Disease Progression, pubmed-meshheading:8541548-Female, pubmed-meshheading:8541548-Genes, ras, pubmed-meshheading:8541548-Granulocyte Colony-Stimulating Factor, pubmed-meshheading:8541548-Humans, pubmed-meshheading:8541548-Immunologic Factors, pubmed-meshheading:8541548-Incidence, pubmed-meshheading:8541548-Infant, pubmed-meshheading:8541548-Leukemia, Myeloid, Acute, pubmed-meshheading:8541548-Male, pubmed-meshheading:8541548-Monosomy, pubmed-meshheading:8541548-Myelodysplastic Syndromes, pubmed-meshheading:8541548-Neutropenia, pubmed-meshheading:8541548-Polymerase Chain Reaction, pubmed-meshheading:8541548-Polymorphism, Single-Stranded Conformational, pubmed-meshheading:8541548-Recombinant Proteins, pubmed-meshheading:8541548-Risk
pubmed:year
1995
pubmed:articleTitle
Monosomy 7 and activating RAS mutations accompany malignant transformation in patients with congenital neutropenia.
pubmed:affiliation
Department of Pediatrics, University of California, San Francisco 94143-0519, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't