Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3-4
pubmed:dateCreated
2005-2-14
pubmed:abstractText
Mammals developed an immune system able to functionally polarize into so-called type 1 or type 2 immune pathways, to resolve infections with intracellular and extracellular pathogens, respectively. In the well-studied avian immune system of the chicken, however, no evidence for polarized immunity could be found, as yet. To investigate whether these two major arms of mammalian immunity, regulated by a T helper (Th)1/Th2 cytokine balance, evolved similarly in birds, chickens were exposed to a prevalent intracellular (viral) or extracellular (helminth) infection. By using semi-quantitative RT-PCR analysis we provide evidence that polarization of Th1/Th2 type immunity extends beyond mammalian species, and, therefore, has been evolutionary conserved for more than 300 million years, when the lineages of mammalian and avian vertebrates are assumed to have segregated.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0378-1135
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
105
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
163-7
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:15708812-Animals, pubmed-meshheading:15708812-Ascaridia, pubmed-meshheading:15708812-Ascaridiasis, pubmed-meshheading:15708812-Base Sequence, pubmed-meshheading:15708812-Biological Evolution, pubmed-meshheading:15708812-Chickens, pubmed-meshheading:15708812-Cytokines, pubmed-meshheading:15708812-Ileum, pubmed-meshheading:15708812-Immunity, Cellular, pubmed-meshheading:15708812-Newcastle Disease, pubmed-meshheading:15708812-Newcastle disease virus, pubmed-meshheading:15708812-Poultry Diseases, pubmed-meshheading:15708812-RNA, Messenger, pubmed-meshheading:15708812-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:15708812-Specific Pathogen-Free Organisms, pubmed-meshheading:15708812-Spleen, pubmed-meshheading:15708812-Th1 Cells, pubmed-meshheading:15708812-Th2 Cells
pubmed:year
2005
pubmed:articleTitle
Th1/Th2 polarization by viral and helminth infection in birds.
pubmed:affiliation
Department of Vaccine Technology and Immunology, Intervet International BV, P.O. Box 31, 5830 AA Boxmeer, The Netherlands.
pubmed:publicationType
Journal Article