Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1998-6-19
pubmed:abstractText
Amphibian metamorphosis is an excellent model system for studying postembryonic development in vertebrates. It involves specific degeneration of larval cells through programmed cell death with apoptotic morphology and selective proliferation and differentiation of adult cell types. Thyroid hormone (T3) plays a causative role in this process and the effects of T3 is presumed to be mediated by T3 receptors (TRs). Studies in other systems have suggested that TRs function as heterodimers formed with RXRs (9-cis retinoic acid receptors) and require the presence of various cofactor in transcriptional activation and repression in the presence and absence of T3, respectively. The T3-induced transcriptional activation leads to chromatin remodeling which may involve some of the cofactors. Recent investigation on receptor expression has implicated a role of TRs in T3-induced apoptosis in larval tissues and proliferation of adult cell types. Functional studies in tadpoles and developing embryos have provide strong support for such a role and further demonstrate the importance of RXR in mediating the effect of T3.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0214-6282
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
107-16
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Auto-regulation of thyroid hormone receptor genes during metamorphosis: roles in apoptosis and cell proliferation.
pubmed:affiliation
Laboratory of Molecular Embryology, National Institute of Child Health and Human Development, Bethesda, MD 20892-5431, USA. Shi@helix.nih.gov
pubmed:publicationType
Journal Article, Review