Linked Life Data

12594247

Source:http://linkedlifedata.com/resource/pubmed/id/12594247

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2003-2-20
pubmed:abstractText
Cathelicidins (caths) are peptides that are expressed at high levels in neutrophils and some epithelia and can act as natural antibiotics by directly killing a wide range of microorganisms. We hypothesized that caths are expressed in mast cells (MCs), because these cells have been previously associated with inherent antimicrobial activity. Cultured murine MCs contained abundant amounts of cathelin-related antimicrobial peptide (AMP), the murine cath, and this expression was inducible by LPS or lipoteichoic acid. Human skin MCs also expressed cath as detected by immunohistochemical analysis for the human cath LL-37. The functional significance of this expression was shown by comparing MCs cultured from normal mice to MCs from littermates deficient in the cathelin-related AMP gene (Cnlp(-)). MCs derived from Cnlp(-/-) animals had a 50% reduction in their ability to kill group A STREPTOCOCCUS: These MCs expressed equivalent amounts of mRNA for murine beta-defensin-4, a beta-defensin AMP. Thus, different antimicrobials can be identified in MCs, and the presence of cath is necessary for efficient bacterial killing. These observations suggest that the presence of cath is vital to the ability of mammalian MCs to participate in antimicrobial defense.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
170
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2274-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Cutting edge: mast cell antimicrobial activity is mediated by expression of cathelicidin antimicrobial peptide.
pubmed:affiliation
Division of Dermatology, Department of Medicine, University of California and Veterans Affairs Medical Center, San Diego, CA 92161, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't