Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1977-1-28
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.
pubmed:language
fre
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0007-4551
pubmed:author
pubmed:issnType
Print
pubmed:volume
63
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
269-78
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:articleTitle
[Recent data on the immunology of tumors. Mechanisms of escape of immunological control. Role of suppressor cells].
pubmed:publicationType
Journal Article, In Vitro, English Abstract