Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1994-3-14
pubmed:abstractText
At adult emergence, the ventral CNS of Drosophila shows a group of approximately 300 neurons, which are unique in that they express 10-fold higher levels of the A isoform of the ecdysone receptor (EcR-A) than do other central neurons. This expression pattern is established early in metamorphosis and persists throughout the remainder of the pupal stage. Although these cells represent a heterogeneous group of neurons, they all share the same fate of undergoing rapid degeneration after the adult emerges from the pupal case. One prerequisite for this death is the decline of ecdysteroids at the end of metamorphosis. Treatment of flies with 20-hydroxyecdysone blocks the death of the cells, but only if given at least 3 hours before the normal time of degeneration. The correlation of a unique pattern of receptor isoform expression with a particular steroid-regulated fate suggests that variations in the pattern of receptor isoform expression may serve as important switches during development.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0950-1991
pubmed:author
pubmed:issnType
Print
pubmed:volume
119
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1251-9
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Programmed cell death in the Drosophila CNS is ecdysone-regulated and coupled with a specific ecdysone receptor isoform.
pubmed:affiliation
Department of Zoology, University of Washington, Seattle 98195.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't