Linked Life Data

2461804

Source:http://linkedlifedata.com/resource/pubmed/id/2461804

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-1-24
pubmed:abstractText
Two monoclonal antibodies respectively recognizing cytokeratins (CK) 18 and 19 were applied to the human thymic epithelium (in vivo and in vitro) in normal and pathological conditions, including 12 thymomas. We observed that in both normal and hyperplastic thymuses (from patients with myasthenia gravis) virtually the entire epithelial network was CK19-positive as were the majority of cells growing in culture. In four thymomas, however, the expression of cytokeratin 19 was not detected by immunofluorescence. On the other hand, CK18 was expressed by a discrete subset of medullary thymic epithelial cells in normal and in hyperplastic thymuses. Among the thymomas a large majority was either negative or contained few isolated CK18-positive cells scattered within the tumour. Conversely, in the two undifferentiated epithelial thymomas, virtually all the tumoral network was strongly labeled with the anti-CK18 monoclonal antibody. The present investigation thus not only defines the human thymic epithelial cell subset on the basis of differential cytokeratin expression but also indicates that anti-CK antibodies with single cytokeratin specificities can be regarded as useful tools to study the heterogeneity of thymomas.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0302-766X
pubmed:author
pubmed:issnType
Print
pubmed:volume
254
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
225-31
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Immunohistochemical studies on a human thymic epithelial cell subset defined by the anti-cytokeratin 18 monoclonal antibody.
pubmed:affiliation
Hôpital Necker, INSERM U 25, Paris, France.
pubmed:publicationType
Journal Article, Comparative Study