Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1997-12-8
pubmed:abstractText
Annexin VI has been isolated from rat liver endosomes and affinity purified antibodies have been produced. By Western blotting, in rat liver subcellular fractions, anti-annexin VI was demonstrated to recognise a 68 kDa band in the three endosomal fractions. In the present study, immunogold labeling of ultrathin Lowicryl sections of rat liver has been used to get insights into the ultrastructural hepatocyte localization. Although at the immunofluorescence level the staining seemed located at the apical, canalicular plasma membrane, domain of the hepatocytes, the electron microscopy revealed that 80% of the labeling, with the anti-annexin VI antibody was specifically localized not at the plasma membrane but in the close subapical endocytic compartment surrounding the bile canalicular plasma membrane of the hepatocyte. Double immunogold labeling with an anti peptide antibody to Rab5 and anti-annexin VI showed that 80% of the Rab5 positive apical endosomes were also labeled with anti-annexin VI antibodies. However, there was no significant colocalization of annexin VI and structures labeled with antibodies to the polymeric immunoglobulin receptor. The results suggest that annexin VI could be involved in regulating the functioning of this apical compartment in the hepatocyte.
pubmed:language
spa
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0210-5705
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
391-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
[Immunohistochemical localization of annexin VI in the endocytic compartment of rat liver hepatocytes].
pubmed:affiliation
Departamento de Biología Celular, Facultad de Medicina, Universidad de Barcelona.
pubmed:publicationType
Journal Article, Comparative Study, English Abstract, Research Support, Non-U.S. Gov't