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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1977-1-28
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pubmed:abstractText |
Cells in spleens from tumor bearing animals were found to inhibit in vitro reactivity of lymphocytes to a variety of stimulants. These suppressor cells inhibited the stimulation of normal lymphocytes by mitogens : P.H.A.-Con A-L.P.S. They were adherent cells, bore immunoglobulins at their surface and did not bear the 0 marker. They were also demonstrated in T deprived tumor bearing animals. They might be B cells, or, more probably, macrophages. Other activities that are inhibited by the suppressor cells are: -reactivity to allogenic cells in the mixed lymphocyte culture, -in vitro generation of secondary anti tumor cytotoxic effector cells, -macrophage migration inhibition in the presence of immune lymphocytes and tumor extracts, -reactivity against syngeneic tumor cells or tumor extracts. Suppressor cells may play a role in the general immunodepression of tumor bearing hosts, and in the inability of tumor bearing hosts to reject the tumor. However, the biological role of these non T suppressor cells is not clear, as they also inhibit tumor cell growth, and in vivo experiments favour suppressor cells of thymic origin.
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pubmed:language |
fre
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0007-4551
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
63
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
269-78
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pubmed:dateRevised |
2009-11-11
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pubmed:meshHeading |
pubmed-meshheading:1086690-Animals,
pubmed-meshheading:1086690-B-Lymphocytes,
pubmed-meshheading:1086690-Cell Migration Inhibition,
pubmed-meshheading:1086690-Concanavalin A,
pubmed-meshheading:1086690-Fibrosarcoma,
pubmed-meshheading:1086690-Lectins,
pubmed-meshheading:1086690-Lipopolysaccharides,
pubmed-meshheading:1086690-Lymphocyte Activation,
pubmed-meshheading:1086690-Macrophages,
pubmed-meshheading:1086690-Mice,
pubmed-meshheading:1086690-Neoplasm Transplantation,
pubmed-meshheading:1086690-Neoplasms, Experimental,
pubmed-meshheading:1086690-Oncogenic Viruses
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pubmed:articleTitle |
[Recent data on the immunology of tumors. Mechanisms of escape of immunological control. Role of suppressor cells].
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pubmed:publicationType |
Journal Article,
In Vitro,
English Abstract
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