Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1980-5-14
pubmed:abstractText
The relationship between phagocytic activity of peritoneal macrophages and serum interferon (IF) titers was evaluated in mice challenged with Newcastle disease virus (NDV). Time course studies indicated peak serum IF titers between 6 and 12 hr, whereas Fc receptor-mediated macrophage phagocytosis was maximal 18 hr after viral administration. Both responses decreased in parallel as the inoculated dose of the virus was reduced. Splenectomy, shown by others to decrease the NDV-induced serum IF titers, significantly decreased the stimulation of phagocytosis. The role of T cells in the response to the virus was studied with nude mice raised under germfree conditions. NDV-induced serum IF titers and macrophage phagocytosis were both diminished in BALB/c nudes compared with their heterozygous littermates. Both responses could be partially restored by transfer of thymocytes obtained from heterozygous mice. The results provide further evidence that in vivo macrophage stimulation by NDV is mediated by induced IF. The experiments with nude mice also indicate that the IF response to NDV is regulated by T lymphocytes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:volume
124
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1360-4
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Relationship between enhanced macrophage phagocytic activity and the induction of interferon by Newcastle disease virus in mice.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.