Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1995-11-3
pubmed:abstractText
The retinoblastoma gene (RB) is the prototype of the tumor suppressor genes, which play critical roles in the genesis of cancer in humans. Mouse models created through gene knock-out and transgenic methods were established for exploring and manipulating RB in vivo. These models and several other pieces of evidence have shown that the retinoblastoma protein (Rb) plays dual roles in gating cell cycle progression and promoting cellular differentiation. The molecular mechanisms involved in these roles are becoming more obvious in some biological systems: Rb sequesters the transcription factor of E2F to regulate entry of cell cycle but enhances the activities of another class of the transcription factors, exemplified by NF-IL6, to initiate terminal cellular differentiation. Thus, the Rb protein can serve as a mediator for extracellular signals of growth or differentiation. The fundamental question of why only limited cell types are susceptible to tumor formation when Rb expression is lost, however, remains unanswered at present.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1045-4403
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
79-95
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
The retinoblastoma protein as a fundamental mediator of growth and differentiation signals.
pubmed:affiliation
Center for Molecular Medicine/Institute of Biotechnology, University of Texas, Health Science Center at San Antonio 78245, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Review, Research Support, Non-U.S. Gov't