Linked Life Data

1705538

Source:http://linkedlifedata.com/resource/pubmed/id/1705538

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1991-4-10
pubmed:abstractText
A cell line producing the neuroendocrine cell surface antigen and human chorionic gonadotropin (hCG) alpha-subunit, designated as KTA7, was established from human large cell carcinoma using a serum-free medium, ACL-3. KTA7 continued to grow in the ACL-3 medium, showing the morphological characteristics of large cell undifferentiated carcinoma. The KTA7 cells reacted with antibodies such as 6H7 and MOC1 directed against the cell surface antigens and PGP9.5 directed against a cytoplasmic protein of neuroendocrine cells but did not possess either most epithelial markers other than low-molecular-weight keratin (Cytokeratin) or neuron-specific enolase. The KTA7 cells, by immunostaining with anti-hCG subunit antibodies, were shown to produce hCG alpha- but not beta-subunit. Northern blot analysis showed KTA7 RNA to synthesize hCG alpha-subunit mRNA but not that of the hCG beta-subunit. Thus, the hCG alpha-subunit alone was independently expressed in KTA7. Chromosome analysis showed loss of alleles of chromosome 3p and 17 in KTA7 cells but not loss of 13q. KTA7 was considered to be derived from large cell undifferentiated carcinoma with neuroendocrine differentiation (large cell neuroendocrine tumor) and thus may fine use in studies on the pathobiology of large cell-type neuroendocrine tumors since it expresses at the same time marker substances of neuroendocrine differentiation and the hCG alpha-subunit.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0910-5050
pubmed:author
pubmed:issnType
Print
pubmed:volume
82
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
12-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
A pulmonary large cell carcinoma cell line expressing neuroendocrine cell markers and human chorionic gonadotropin alpha-subunit.
pubmed:affiliation
Department of Pathology, School of Medicine, Kitasato University.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't