Linked Life Data

2285597

Source:http://linkedlifedata.com/resource/pubmed/id/2285597

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1991-3-27
pubmed:abstractText
The expression of epidermal growth factor receptor (EGF-R), transforming growth factor alpha (TGF alpha) and the c-myc oncogene was investigated in different specimens of gynecologic carcinomas. EGF specific binding sites were detected in about 50% of adenocarcinomas (ovarian, endometrial, breast) and in over 90% of squamous carcinomas (cervical). There is a positive correlation between the EGF-R binding assay, immunohistochemistry and the relative amounts of mRNA by Northern blotting. TGF alpha was investigated by immunohistochemistry and Northern blotting. TGF alpha immunoreactivity was detected exclusively in the epithelial cells of nonmalignant tissues (skin, cervix, endometrium, large bowel, lung) as well as different ovarian carcinomas. The TGF alpha immunostaining score correlates with the TGF alpha mRNA amounts. The c-myc expression was analyzed by Northern blotting in the specimens of ovarian carcinomas. Whereas, a positive correlation between the c-myc and TGF alpha expression was noticed, no correlation existed between EGF-R and c-myc expression. Progressive disease (PD) of ovarian carcinomas after chemotherapy was mainly noticed in the group of EGF-R- tumors and those with high amounts of c-myc mRNA. EGF-R+ ovarian carcinomas responded significantly better to chemotherapy. However, similar survival times existed between the EGF-R+ and EGF-R- group and the survival times of patients having responded to the treatment was reduced in the EGF-R+ group. This indicates that EGF-R+ and those carcinomas expressing high amounts of c-myc constitute a more aggressive group of ovarian carcinomas.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0960-0760
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
855-62
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Clinical significance of oncogenes and growth factors in ovarian carcinomas.
pubmed:affiliation
Universitäts-Frauenklinik, Freiburg, F.R.G.
pubmed:publicationType
Journal Article, Comparative Study