Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2009-2-17
pubmed:abstractText
CD40, a costimulatory molecule expressed on macrophages, induces expression of interleukin 12 (IL-12) in uninfected macrophages and IL-10 in macrophages infected with Leishmania major. IL-12 suppresses, whereas IL-10 enhances, L. major infection. The mechanisms that regulate this difference in CD40-induced cytokine production remain unclear, but it is known that L. major depletes cholesterol. Here we show that cholesterol influenced the assembly of distinct CD40 signalosomes. Depletion of membrane cholesterol inhibited the assembly of an IL-12-inducing CD40 signalosome containing the adaptors TRAF2, TRAF3 and TRAF5 and the kinase Lyn and promoted the assembly of an IL-10-inducing CD40 signalosome containing the adaptor TRAF6 and the kinase Syk. Thus, cholesterol depletion might represent an immune-evasion strategy used by L. major.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1529-2916
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
273-80
pubmed:dateRevised
2009-5-27
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Cholesterol depletion associated with Leishmania major infection alters macrophage CD40 signalosome composition and effector function.
pubmed:affiliation
National Centre for Cell Science, Ganeshkhind, Pune 411007, India.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't