Linked Life Data

16582616

Source:http://linkedlifedata.com/resource/pubmed/id/16582616

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2006-4-6
pubmed:abstractText
The term 'epigenetics' refers to heritable changes in gene function that occur in the absence of any change in DNA sequence. Perturbations of epigenetic gene regulation may play a critical role in the genesis of most, if not all, cancers. These alterations include changes in covalent modifications of DNA and histones as well as non covalent changes in nucleosome positioning. Covalent epigenetic modifications have been the main focus of cancer investigation, perhaps because they are more readily assayed and understood than non covalent modifications. Recently, evidence has emerged demonstrating that perturbation of complexes that remodel the structure of chromatin by mobilizing nucleosomes may have a key role in tumor suppression and oncogenic transformation. For example, Snf5 (Ini1/Baf47/Smarcb1), a core component of the Swi/Snf ATPase chromatin remodeling complex, is a potent tumor suppressor that is specifically inactivated in lethal childhood cancers. Notably, these cancers may serve as a paradigm for epigenetic cancers as, despite their extremely aggressive nature, the majority have an entirely normal karyotype with only microdeletions at the Snf5 locus. Recent investigations have shed light upon the mechanistic basis of Snf5 function by demonstrating that Snf5 and the Swi/Snf complex regulate the cell cycle and cooperate with p53 to prevent oncogenic transformation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1551-4005
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
621-4
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Epigenetics and cancer: altered chromatin remodeling via Snf5 loss leads to aberrant cell cycle regulation.
pubmed:affiliation
Department of Pediatric Oncology, Division of Hematology/Oncology, Children's Hospital Boston, Harvard Medical School, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA.
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't