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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1994-12-29
pubmed:abstractText
During chicken neurogenesis, the sequential expression of butyrylcholinesterase (BChE) and acetylcholinesterase (AChE) between final cell proliferation and differentiation is functionally not understood. Recently, cholinesterases have been shown to regulate neurite growth in vitro. Here, we investigated the effects of inhibition of BChE on laminar histogenesis in retinospheroids that arise from dissociated embryonic chicken retinal cells in rotation culture. In the presence of the BChE inhibitor iso-OMPA (tetraisopropyl pyrophosphoramide), the number of spheroids/dish is increased, and their diameter is decreased by about 20%, corresponding to about 50% volume size. As a corollary, the course of histotypical differentiation is dramatically accelerated. Thus as a consequence of BChE inhibition both, organization of nuclear cell layers and of plexiform-like (neuropile) areas, as detected by an antibody to the fiber fasciculation protein F11, is temporally advanced by at least two days. Moreover, AChE is almost fully diminished in these areas. The results further demonstrate novel roles of cholinesterases during laminar histogenesis of coherent neural networks in vitro.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0171-9335
pubmed:author
pubmed:issnType
Print
pubmed:volume
64
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
192-9
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Butyrylcholinesterase regulates laminar retinogenesis of the chick embryo in vitro.
pubmed:affiliation
Institut für Zoologie, Technische Hochschule Darmstadt, Germany.
pubmed:publicationType
Journal Article