Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1997-5-8
pubmed:abstractText
It has recently been shown that several members of the tetraspan superfamily, including CD9 and CD63, associate with each other and with beta1 integrins. In this study, we examined the distribution of a recently identified tetraspan, PETA-3 (CD151), and of CD9, CD63, alpha5beta1, and the integrin beta1 chain in normal human tissues by the indirect immunoperoxidase and alkaline phosphatase-anti-alkaline phosphatase techniques. PETA-3 showed a broad distribution and was expressed by endothelium, epithelium, Schwann cells, and dendritic cells and by skeletal, smooth, and cardiac muscle. Expression in skin was mostly restricted to the basal cells of the epidermis and was downregulated on differentiation. In the small intestine, PETA-3 was expressed by crypt and villous enterocytes with a mostly basolateral distribution, but was not detectable on the brush border. CD9 was expressed on the plasma membrane of enterocytes in crypts and at the bases of the villi whereas CD63 demonstrated a unique granular appearance concentrated in the apical cytoplasm below the brush border. The findings of this study show co-localization of PETA-3 with CD9, CD63, alpha5beta1, and beta1 in particular tissues, demonstrating that tetraspan/integrin complexes may occur. However, the lack of co-localization of these antigens in other tissues also implies distinct roles for these molecules.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0022-1554
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
515-25
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Localization of the transmembrane 4 superfamily (TM4SF) member PETA-3 (CD151) in normal human tissues: comparison with CD9, CD63, and alpha5beta1 integrin.
pubmed:affiliation
Department of Medicine, The University of Adelaide, Australia.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't