Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1989-10-31
pubmed:abstractText
Coagulation system and platelets play an important role in the stage of lodgement of tumor cells. We examined abilities of human and hamster pancreatic cancer cell lines to aggregate platelets in vitro, and investigated the effect of prostaglandin E1, I2, on artificial liver metastases of pancreatic cancer in Syrian golden hamster. Platelet aggregating activities were found in five out of six human pancreatic cancer cell line and thromboplastin likes activity in five cell lines. Diisopropanolnitrosamine induced hamster pancreatic cancer cells (HPK-1) were able to aggregate platelets both in vitro and in vivo and these activities were inhibited by prostaglandin I2. Hamster was inoculated intraportally with 1 X 10(6) HPK-1 cells. After two weeks autopsy of these hamsters revealed multiple metastatic nodules on liver surface. In this model we administered prostaglandin E1, I2 into the portal vein five minutes before cell inoculation. Number of liver surface nodules were significantly decreased to 33.1 + 7.0, 11.0 + 9.6 in hamster given 100g PGE1 PGI2 before cell inoculation, compared with control group of hamsters (62.0 + 6.6 PH9.3, 66.1 + 13.9 PH7.4). But administration of prostaglandin after cell injection was not effective. In all cases none of extrahepatic metastases were noted. Inhibitory action of PGE1 PGI2 on liver metastasis is suspected to be related to inhibition of platelet aggregation.
pubmed:language
jpn
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0301-4894
pubmed:author
pubmed:issnType
Print
pubmed:volume
90
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
745-52
pubmed:dateRevised
2011-7-26
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
[Inhibitory effect of anti-platelet prostaglandin on liver metastasis of hamster pancreatic cancer].
pubmed:affiliation
First Department of Surgery, Tohoku University School of Medicine, Sendai, Japan.
pubmed:publicationType
Journal Article, English Abstract