Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 4
pubmed:dateCreated
2003-7-30
pubmed:abstractText
Parotid secretory protein (PSP) is an abundant protein in mouse and rat parotid glands. A related sequence (C20orf70) was identified on human chromosome 20. The goal of this study was to determine if PSP is expressed in the human parotid gland. The cDNA for human PSP was amplified from a human parotid cDNA sample. A peptide antibody, raised to the C-terminal peptide of PSP, identified the protein in human parotid tissue by immunofluorescence microscopy. Immunoaffinity chromatography suggested that PSP was expressed in human saliva. PSP is related to bactericidal/permeability-increasing protein (BPI). To test if PSP exhibits anti-bacterial activity, epitope-tagged PSP was expressed in rat GH4C1 cells. The secretion medium exhibited bacteristatic or bactericidal effects on Pseudomonas aeruginosa in a colony-forming assay when compared with secretion medium from GH4C1 cells that did not express PSP. These results suggest that PSP is expressed in the human parotid gland and saliva, where it functions as a BPI-like anti-bacterial protein.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0300-5127
pubmed:author
pubmed:issnType
Print
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
815-8
pubmed:dateRevised
2011-9-27
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Expression and anti-bacterial activity of human parotid secretory protein (PSP).
pubmed:affiliation
Center for Oral Health and Systemic Disease, University of Louisville School of Dentistry, Louisville, KY 40292, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't