Linked Life Data

16320199

Source:http://linkedlifedata.com/resource/pubmed/id/16320199

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2005-12-1
pubmed:abstractText
Hyperforin is a plant compound from Hypericum perforatum that inhibits tumor cell proliferation in vitro by induction of apoptosis. Here, we report that hyperforin also acts as an angiogenesis inhibitor in vitro and in vivo. In vitro, hyperforin blocked microvessel formation of human dermal microvascular endothelial cells (HDMEC) on a complex extracellular matrix. Furthermore, hyperforin reduced proliferation of HDMEC in a dose-dependent manner, without displaying toxic effects or inducing apoptosis of the cells. To evaluate the antiangiogenic activity of hyperforin in vivo, Wistar rats were subcutaneously injected with MT-450 mammary carcinoma cells and were treated with peritumoral injections of hyperforin or solvent. Hyperforin significantly inhibited tumor growth, induced apoptosis of tumor cells and reduced tumor vascularization, as shown by in situ staining of CD31-positive microvessels in the tumor stroma. These data suggest that, in addition to the induction of tumor cell apoptosis, hyperforin can also suppress angiogenesis by a direct, non-toxic effect on endothelial cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0032-0943
pubmed:author
pubmed:issnType
Print
pubmed:volume
71
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
999-1004
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Hyperforin acts as an angiogenesis inhibitor.
pubmed:affiliation
Department of Dermatology, University of Freiburg, Germany. cschempp@haut.ukl.uni-freiburg.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't