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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2009-9-9
pubmed:abstractText
A new commercially available antigen-capture, blocking enzyme-linked immunosorbent assay (antigen-capture b-ELISA), based on baculovirus truncated-S recombinant protein of Transmissible gastroenteritis virus (TGEV) and 3 specific monoclonal antibodies, was developed and evaluated by examining a panel of 453 positive Porcine respiratory coronavirus (PRCoV), 31 positive TGEV, and 126 negative field sera by using another commercially available differential coronavirus b-ELISA as the reference technique to differentiate TGEV- from PRCoV-induced antibodies. The recombinant S protein-based ELISA appeared to be 100% sensitive for TGEV and PRCoV detection and highly specific for TGEV and PRCoV detection (100% and 92.06%, respectively), when qualitative results (positive or negative) were compared with those of the reference technique. In variability experiments, the ELISA gave consistent results when the same serum was evaluated on different wells and different plates. These results indicated that truncated recombinant S protein is a suitable alternative to the complete virus as antigen in ELISA assays. The use of recombinant S protein as antigen offers great advantages because it is an easy-to-produce, easy-to-standardize, noninfectious antigen that does not require further purification or concentration. Those advantages represent an important improvement for antigen preparation, in comparison with other assays in which an inactivated virus from mammalian cell cultures is used.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1040-6387
pubmed:author
pubmed:issnType
Print
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
598-608
pubmed:meshHeading
pubmed-meshheading:19737754-Animals, pubmed-meshheading:19737754-Antibodies, Monoclonal, pubmed-meshheading:19737754-Antibodies, Viral, pubmed-meshheading:19737754-Antigens, Viral, pubmed-meshheading:19737754-Baculoviridae, pubmed-meshheading:19737754-Cell Line, pubmed-meshheading:19737754-Circovirus, pubmed-meshheading:19737754-Cloning, Molecular, pubmed-meshheading:19737754-Enzyme-Linked Immunosorbent Assay, pubmed-meshheading:19737754-Neutralization Tests, pubmed-meshheading:19737754-Parvovirus, Porcine, pubmed-meshheading:19737754-Porcine Reproductive and Respiratory Syndrome, pubmed-meshheading:19737754-Porcine respiratory and reproductive syndrome virus, pubmed-meshheading:19737754-Protein S, pubmed-meshheading:19737754-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:19737754-Spodoptera, pubmed-meshheading:19737754-Swine
pubmed:year
2009
pubmed:articleTitle
Antigen-capture blocking enzyme-linked immunosorbent assay based on a baculovirus recombinant antigen to differentiate Transmissible gastroenteritis virus from Porcine respiratory coronavirus antibodies.
pubmed:affiliation
Inmunología y Genética Aplicada S.A. (INGENASA), Hnos. García Noblejas 41, 28037 Madrid, Spain.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't