Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-5-26
pubmed:abstractText
The effects of delta-9-tetrahydrocannabinol (THC) on NK cell activity were studied. Previously, we reported that incubation of human peripheral blood mononuclear cells in THC resulted in an inhibition of natural killer (NK) cell activity. The present study examined the mechanism(s) of the decrease in NK cell activity. The inhibition of killing by NK cells was not due to a failure of NK cells to bind to K562 target cells. Furthermore, indomethacin did not abrogate the THC-mediated effect, suggesting that prostaglandins are not involved in the process leading to suppression of NK cell activity. However, NK activity was partially restored if cells, pretreated with THC, were washed to remove excess drug and then incubated overnight in fresh medium before assay. Addition of 1-100 U IL-2, either during pretreatment with THC or during overnight incubation, precluded or promoted the reversal of the inhibition of NK cell cytotoxicity. We conclude that the regulatory mechanism(s) involved in depression of NK cell cytotoxicity by THC is significantly influenced by IL-2.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0192-0561
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
63-9
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Prevention and reversal of delta-9-tetrahydrocannabinol induced depression of natural killer cell activity by interleukin-2.
pubmed:affiliation
Department of Medical Microbiology and Immunology, University of South Florida College of Medicine, Tampa 33612.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.