Linked Life Data

17361205

Source:http://linkedlifedata.com/resource/pubmed/id/17361205

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-3-15
pubmed:abstractText
The relationship between HER-2 overexpression and gene amplification is well evaluated in breast cancers but remains unclear or controversial in many other tumor entities. Therefore, we tested the HER-2 status in more than 120 different tumor entities. 5751 tumor samples were analyzed on TMAs by immunohistochemistry (Hercept-Test, DAKO) and fluorescence in situ hybridization (PathVysion, Abbott-Vysis) under highly standardized conditions. HER-2 overexpression (score 2/3+) and amplification occurred most often in breast cancers but was also seen in 18 other tumor entities including cancers of the urinary bladder (amplification in 14.3%, overexpression in 6.7%), stomach (8.3/4.9%), endometrium (6.6/6.8%), lung (2.8/3.1%) and ovary (2.3/1.2%). Remarkably, a strong association between overexpression and amplification was seen in all examined cancer entities. Trastuzumab therapy is highly efficient in HER-2 amplified breast cancer both in metastatic disease and as an adjuvant therapy. A variety of other tumor entities including frequent neoplasms and cancers with often limited therapeutic options have similar patterns of HER-2 alterations as observed in breast cancer (ie high overexpression due to high level gene amplification). Such tumor entities should be carefully evaluated for a possible utility of trastuzumab treatment.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0893-3952
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
192-8
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Close association between HER-2 amplification and overexpression in human tumors of non-breast origin.
pubmed:affiliation
Institute of Pathology, University of Basel, Basel, Switzerland.
pubmed:publicationType
Journal Article, Comparative Study