Linked Life Data

2547613

Source:http://linkedlifedata.com/resource/pubmed/id/2547613

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-9-8
pubmed:abstractText
AtT20 (clone D16V) cells develop long neurite-like processes in the growth cones of which secretory granules containing ACTH accumulate. These secretory granules have an acidic pH. Using acridine orange as a vital stain for acidic organelles, in combination with video-enhanced fluorescence microscopy, and subsequent immunolabeling with rabbit antibodies against ACTH, we have shown that these secretory granules move by saltations along the processes. During saltations velocities of 3 to 5 microns/s are achieved. The majority of the secretory granules move in the anterograde direction but some move retrogradely. The growth cones and processes are the site of extensive endocytosis. Using Lucifer Yellow as a vital stain we have shown that most endosomes move by saltations retrogradely. Movement of both secretory granules and endosomes is dependent upon microtubules. Individual secretory granules or endosomes never reverse the direction of their movement as they traverse the processes. Neutralization of the lumen of these acidic organelles with NH4Cl does not inhibit their movement or change its direction.
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
49
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
128-39
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Secretory granules and endosomes show saltatory movement biased to the anterograde and retrograde directions, respectively, along microtubules in AtT20 cells.
pubmed:affiliation
European Molecular Biology Laboratory, Heidelberg/Federal Republic of Germany.
pubmed:publicationType
Journal Article