Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2003-5-6
pubmed:abstractText
P57KIP2 is a cyclin-dependent kinase inhibitor silenced in a variety of human malignancies. DNA methylation of a region surrounding the transcription start site of p57KIP2 was found in acute lymphocytic leukemia (ALL)-derived cell lines. Methylation of this region correlated with gene silencing, and treatment of methylated/silenced cell lines with 5-aza-2'-deoxycytidine resulted in gene re-expression. P57KIP2 was methylated in 31 (50%) of 63 patients with newly diagnosed ALL, and in 11 (52%) of 21 patients with relapsed ALL. In 5 of them (25%), methylation was acquired at relapse. No association was observed between methylation of p57KIP2 alone and clinical-biologic characteristics studied, including overall survival (OS) or disease-free survival. Methylation of multiple genes in a cell-cycle regulatory pathway composed of p73, p15, and p57KIP2 occurred in 22% of Philadelphia chromosome (Ph)-negative patients. Ph-negative patients with methylation of 2 or 3 genes of this pathway had a significantly worse median OS compared with those with methylation of 0 or 1 gene (50 vs 467 weeks, respectively; P =.02). Our results indicate that p57KIP2 is frequently methylated in adult patients with ALL, and that inactivation of a pathway composed of p73, p15, and p57KIP2 predicts for poor prognosis in Ph-negative patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
101
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4131-6
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:12586619-Adolescent, pubmed-meshheading:12586619-Adult, pubmed-meshheading:12586619-Aged, pubmed-meshheading:12586619-Cell Cycle, pubmed-meshheading:12586619-Cyclin-Dependent Kinase Inhibitor p57, pubmed-meshheading:12586619-Cyclin-Dependent Kinases, pubmed-meshheading:12586619-DNA Methylation, pubmed-meshheading:12586619-Enzyme Inhibitors, pubmed-meshheading:12586619-Female, pubmed-meshheading:12586619-Humans, pubmed-meshheading:12586619-Jurkat Cells, pubmed-meshheading:12586619-Leukemia-Lymphoma, Adult T-Cell, pubmed-meshheading:12586619-Male, pubmed-meshheading:12586619-Middle Aged, pubmed-meshheading:12586619-Nuclear Proteins, pubmed-meshheading:12586619-Prognosis, pubmed-meshheading:12586619-Survival Analysis, pubmed-meshheading:12586619-Time Factors, pubmed-meshheading:12586619-Tumor Cells, Cultured
pubmed:year
2003
pubmed:articleTitle
Aberrant DNA methylation of p57KIP2 identifies a cell-cycle regulatory pathway with prognostic impact in adult acute lymphocytic leukemia.
pubmed:affiliation
Department of Leukemia, University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't