About: Development and comparison of enzyme-linked immunosorbent assays based on recombinant trimeric full-length and truncated spike proteins for detecting antibodies against porcine epidemic diarrhea virus

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About: Development and comparison of enzyme-linked immunosorbent assays based on recombinant trimeric full-length and truncated spike proteins for detecting antibodies against porcine epidemic diarrhea virus Goto Sponge NotDistinct Permalink

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	Development and comparison of enzyme-linked immunosorbent assays based on recombinant trimeric full-length and truncated spike proteins for detecting antibodies against porcine epidemic diarrhea virus
Creator	Chang, Hui-Wen Jeng, Chian-Ren Chang, Chia-Yu Chang, Yen-Chen Cheng, Yun-Han »more»
source	Medline; PMC
abstract	BACKGROUND: Since 2010, outbreaks of genotype 2 (G2) porcine epidemic diarrhea virus (PEDV) have caused high mortality in neonatal piglets and have had devastating impacts on the swine industry in many countries. A reliable serological assay for evaluating the PEDV-specific humoral and mucosal immune response is important for disease survey, monitoring the efficacy of immunization, and designing strategies for the prevention and control of PED. Two PEDV spike (S) glycoprotein-based indirect enzyme-linked immunosorbent assays (ELISAs) were developed using G2b PEDV-Pintung 52 (PEDV-PT) trimeric full-length S and truncated S(1–501) proteins derived from the human embryonic kidney (HEK)-293 cell expression system. The truncated S(1–501) protein was selected from a superior expressed stable cell line. The sensitivity and specificity of these two ELISAs were compared to immunostaining of G2b PEDV-PT infected cells and to a commercial nucleocapsid (N)-based indirect ELISA kit using a panel of PEDV negative and hyperimmune sera. RESULTS: The commercial N-based ELISA exhibited a sensitivity of 37%, a specificity of 100%, and a fair agreement (kappa = 0.37) with the immunostaining result. In comparison, the full-length S-based ELISA showed a sensitivity of 97.8%, a specificity of 94%, and an almost perfect agreement (kappa = 0.90) with the immunostaining result. Interestingly, the S(1–501)-based ELISA had even higher sensitivity of 98.9% and specificity of 99.1%, and an almost perfect agreement (kappa = 0.97) with the immunostaining result. A fair agreement (kappa< 0.4) was seen between the commercial N-based ELISA and either of our S-based ELISAs. However, the results of the full-length S-based ELISA shared an almost perfect agreement (kappa = 0.92) with that of S(1–501)-based ELISA. CONCLUSIONS: Both full-length S-based and S(1–501)-based ELISAs exhibit high sensitivity and high specificity for detecting antibodies against PEDVs. Considering the high protein yield and cost-effectiveness, the S(1–501)-based ELISA could be used as a reliable, sensitive, specific, and economic serological test for PEDV.
has issue date	2019-11-27(xsd:dateTime)
bibo:doi	10.1186/s12917-019-2171-7
bibo:pmid	31775769
has license	cc-by
sha1sum (hex)	5d36857d0cdaff4320e21e718bdc2e12599ef124
schema:url	https://doi.org/10.1186/s12917-019-2171-7
resource representing a document's title	Development and comparison of enzyme-linked immunosorbent assays based on recombinant trimeric full-length and truncated spike proteins for detecting antibodies against porcine epidemic diarrhea virus
has PubMed Central identifier	PMC6880432
has PubMed identifier	31775769
schema:publication	BMC Vet Res
resource representing a document's body	covid:5d36857d0cdaff4320e21e718bdc2e12599ef124#body_text
is schema:about of	named entity 'enzyme' named entity 'PORCINE EPIDEMIC DIARRHEA VIRUS' named entity 'DEVELOPMENT' named entity 'ANTIBODIES' named entity 'PROTEINS' »more»

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