Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2007-4-16
pubmed:abstractText
Very recent reports have documented that Trypanosoma evansi, the etiological agent of the livestock disease "surra," can cause human trypanosomiasis. In contrast to trypanosomes causing human African trypanosomiasis, T. evansi has a wide geographic distribution and host range, yet information about the immunobiological aspects of T. evansi trypanosomiasis is limited. Here, we show that, although T. evansi causes the induction of tumor necrosis factor (TNF), interferon-gamma, and nitric oxide during the early stage of infection, none of these molecules are crucial for parasitemia control and survival of the infected animal. However, TNF and TNF receptor 2 affect the induction of late-stage anemia. Using B cell- and immunoglobulin M (IgM)-deficient mice, we identified IgM as being crucial for parasitemia control and host survival. Collectively, our results show that, compared with other trypanosomes, T. evansi displays a distinct host-parasite interaction profile, give that, despite an infection-associated induction of proinflammatory molecules, only IgM antibodies contribute significantly to parasite control.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-1899
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
195
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1513-20
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Control of Trypanosoma evansi infection is IgM mediated and does not require a type I inflammatory response.
pubmed:affiliation
Department of Cellular and Molecular Interactions, Vlaams Interuniversitair Instituut voor Biotechnologie, Laboratorium voor Cellulaire en Moleculaire Immunologie, Vrije Universiteit Brussel, Brussels, B-1050, Belgium. tbaral@vub.ac.be
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't