Linked Life Data

15114664

Source:http://linkedlifedata.com/resource/pubmed/id/15114664

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2004-4-28
pubmed:abstractText
It has been shown that a relatively high dose of tributyltin (TBT), which is recognized as a particularly notable environmental pollutant, exerts immunotoxic effects such as thymic atrophy via induction of T cell apoptosis. However, the effect of low doses of TBT on the immune responses remains unknown. Here we show that environmentally relevant doses of TBT promoted strong Th2 polarization via suppression and augmentation of Th1 and Th2 development, respectively, from naive CD4(+) T cells primed with anti-CD3 and splenic antigen-presenting cells (APC). TBT-induced Th2 polarization was indirect, working through APC via suppression of IL-12 production by macrophages/DC and the augmentation of IL-10 production by B cells. Th2 polarization was also induced in mice treated with TBT and immunized with OVA or infected with Nippostrongylus brasiliensis. Furthermore, airway inflammation in mice sensitized and challenged with OVA was exacerbated by the administration of TBT with concomitant augmentation of Th2-type immunity. Our results highlight the fact that an important environmental pollutant TBT may present significant risk for the induction of allergic diseases via promotion of Th2 polarization.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0014-2980
pubmed:author
pubmed:issnType
Print
pubmed:volume
34
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1312-21
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Environmental pollutant tributyltin promotes Th2 polarization and exacerbates airway inflammation.
pubmed:affiliation
Department of Bioregulation, Mie University School of Medicine, Tsu, Mie, Japan. katotaku@doc.medic.mie-u.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't