Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
16
pubmed:dateCreated
1991-9-13
pubmed:abstractText
Many human tumors of epithelial origin contain cells overexpressing the epidermal growth factor (EGF) receptor, and there is convincing evidence that cancer cell growth is correlated with the loss of the normal regulation of the EGF receptor signal transduction pathway. Some cancers are clearly dependent on activation of the EGF receptor for their proliferation. Recently, a class of compounds, tyrphostins, which inhibit the protein tyrosine kinase activity of the growth factor receptor, have been described. In this report, we have examined the antiproliferative effects of potent new tyrphostins on a well-characterized human squamous cell carcinoma in vitro and in vivo. We found that two of these compounds (RG-13022 and RG-14620) suppressed not only EGF-stimulated cancer cell proliferation in vitro but also tumor growth in nude mice. RG-13022 also increased the life span of these tumor-bearing nude mice. When administered to tumor-bearing nude mice together with monoclonal antibodies to the EGF receptor at a suboptimal dose which had no effect alone, inhibition of tumor growth was markedly enhanced. These data suggest that tyrphostins have potential as anticancer agents.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
51
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4430-5
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
The antiproliferative effects of tyrosine kinase inhibitors tyrphostins on a human squamous cell carcinoma in vitro and in nude mice.
pubmed:affiliation
Department of Medicine, University of Texas Health Science Center, San Antonio 78284-7877.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.