Linked Life Data

6321187

Source:http://linkedlifedata.com/resource/pubmed/id/6321187

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1984-4-16
pubmed:abstractText
The human hepatoma cell line, Hep G2, was used as a model system to delineate the morphological aspects of receptor-mediated endocytosis of asialoglycoproteins (ASGP). These hepatoma cells, which have several structural features in common with liver parenchymal cells, contain a well-differentiated endocytotic apparatus which includes coated vesicles and CURL (compartment of uncoupling receptor and ligand) similar to that found in rat liver cells in vivo (Geuze et al., 1983). In order to precisely identify the route of ligand from the cell surface to the CURL sorting vesicles, Hep G2 cells were allowed to endocytose in synchrony ASGP bound to 12 nm colloidal gold for 5 to 60 min. Thereafter the subcellular distribution of the gold particles was examined in ultrathin cryosections. This study demonstrates that, once internalized, ASGP ligand enters a system of CURL tubules prior to delivery to the lumenal contents of attached endocytotic vesicles. These vesicles then in turn transform into multivesicular bodies and secondary lysosomes. Thus, the tubular portions of CURL provide the entry for ASGP ligand into the sorting compartment.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0171-9335
pubmed:author
pubmed:issnType
Print
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
38-44
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
The pathway of the asialoglycoprotein-ligand during receptor-mediated endocytosis: a morphological study with colloidal gold/ligand in the human hepatoma cell line, Hep G2.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't