Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6083
pubmed:dateCreated
1986-10-15
pubmed:abstractText
Activated monocytes or macrophages can release soluble cytotoxic molecules capable of lysing tumour cells in vitro and thus represent an important component of the host defence mechanisms against malignancy. The recent availability of pure recombinant or natural human lymphokines and monokines and their respective polyclonal or monoclonal antibodies now makes it possible to dissect the interactions of these factors in the induction and performance of the cytotoxic event by the monocytes. Our studies indicate that pretreatment of monocytes with alpha-IFN or gamma-IFN, and also interleukin (IL)-1 or tumour necrosis factor (TNF) results in enhanced monocyte cytotoxicity. Although all these substances induce the production of IL-1 by monocytes, TNF mediates the enhanced cytotoxicity induced in monocytes by gamma-IFN, IL-1 and, in an autocrine manner, by TNF itself. Neither TNF, IL-1, gamma-IFN nor alpha-IFN mediate spontaneous monocyte cytotoxicity or that induced by alpha-IFN. Our studies thus reveal new interactions between the two monokines IL-1 and TNF and provide a dual role for TNF, as immunomodulator and mediator of monocyte cytotoxicity induced by certain specific lymphokine and monokine molecules.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0028-0836
pubmed:author
pubmed:issnType
Print
pubmed:volume
323
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
86-9
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:articleTitle
Tumour necrosis factor as immunomodulator and mediator of monocyte cytotoxicity induced by itself, gamma-interferon and interleukin-1.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.