Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2009-2-10
pubmed:abstractText
The existence of specific immunological priming in protection upon secondary exposure in invertebrates remains controversial. By exploring the changes in the expression patterns of Bf, C3 and C6, key genes involved in the alternative complement pathway (AP), after challenge with different combinations of three bacteria Vibrio anguillarum, Escherichia coli and Staphylococcus aureus, we show that re-exposure to the same species of bacteria or the different species of the same (Gram-negative or Gram-positive) class of bacteria results in a significant increase in the expression of Bf, C3 and C6, and an earlier occurrence of gene expression peak compared with the first exposure in amphioxus Branchiostoma belcheri; in contrast, re-exposure to the different class of bacteria did not induce such responses. These characteristics appear to bear some analogy to the immunological memory in vertebrates, suggesting that amphioxus B. belcheri possesses the ability to discriminate between classes of microorganisms. Moreover, our results for the first time establish a link between the alternative complement components and the specific immune priming.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1095-9947
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
33-9
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Responses of alternative complement expression to challenge with different combinations of Vibrio anguillarum, Escherichia coli and Staphylococcus aureus: evidence for specific immune priming in amphioxus Branchiostoma belcheri.
pubmed:affiliation
Department of Marine Biology, Ocean University of China, Qingdao 266003, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't