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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8-9
pubmed:dateCreated
2010-7-26
pubmed:abstractText
Filarial nematodes achieve long survival in their hosts due to their capacity to modulate immune responses. Therefore, immunomodulation by filarial nematodes may alter responses to concomitant infections such as malaria. Cerebral malaria (CM), a severe complication of Plasmodium falciparum infections, is triggered as a consequence of the immune response developed against malaria parasites. The question arises whether prior infection with helminth parasites is beneficial against CM. In the present work a murine model for subsequent has been used to assess this hypothesis. C57BL/6 mice were infected with the rodent filarial parasite Litomosoides sigmodontis and the murine model parasite for CM, Plasmodium berghei ANKA. Previously filaria-infected C57BL/6 mice showed significantly reduced CM rates. CD8(+) T cell recruitment to the brain, a hallmark for CM development, was reduced in protected mice. Furthermore, in contrast to P. berghei single-infected animals, filaria-infected mice had significantly higher levels of circulating IL-10. The requirement for IL-10 in CM protection was demonstrated by the lack of protection in IL-10 KO mice. This suggests that the anti-inflammatory IL-10 elicited by filarial nematodes is able to suppress the overwhelming inflammatory reaction otherwise triggered against malaria parasites in C57BL/6 mice, preventing full progress to CM.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1769-714X
pubmed:author
pubmed:copyrightInfo
Copyright 2010 Elsevier Masson SAS. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
635-42
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Filaria-induced IL-10 suppresses murine cerebral malaria.
pubmed:affiliation
Institute of Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany. specht@microbiology-bonn.de
pubmed:publicationType
Journal Article