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Differential sensitivities of severe acute respiratory syndrome (SARS) coronavirus spike polypeptide enzyme-linked immunosorbent assay (ELISA) and SARS coronavirus nucleocapsid protein ELISA for serodiagnosis of SARS coronavirus pneumonia

Identifieur interne : 000645 ( PascalFrancis/Corpus ); précédent : 000644; suivant : 000646

Differential sensitivities of severe acute respiratory syndrome (SARS) coronavirus spike polypeptide enzyme-linked immunosorbent assay (ELISA) and SARS coronavirus nucleocapsid protein ELISA for serodiagnosis of SARS coronavirus pneumonia

Auteurs : Patrick C. Y. Woo ; Susanna K. P. Lau ; Beatrice H. L. Wong ; Hoi-Wah Tsoi ; Ami M. Y. Fung ; Richard Y. T. Kao ; Kwok-Hung Chan ; J. S. Malik Peiris ; Kwok-Yung Yuen

Source :

RBID : Pascal:05-0322075

Descripteurs français

English descriptors

Abstract

The use of recombinant severe acute respiratory syndrome-coronavirus (SARS-CoV) nucleocapsid protein (N) enzyme-linked immunosorbent assay (ELISA)-based antibody and antigen tests for diagnosis of SARS-CoV infections have been widely reported. However, no recombinant SARS-CoV spike protein (S)-based ELISA is currently available. In this article, we describe the problems and solutions of setting up the recombinant SARS-CoV S-based ELISA for antibody detection. The SARS-CoV S-based immunoglobulin M (IgM) and IgG ELISAs were evaluated and compared with the corresponding N-based ELISA for serodiagnosis of SARS-CoV pneumonia, using sera from 148 healthy blood donors who donated blood 3 years ago as controls and 95 SARS-CoV pneumonia patients in Hong Kong. Results obtained by the recombinant S (rS)-based IgG ELISA using the regenerated S prepared by dialysis with decreasing concentrations of urea or direct addition of different coating buffers, followed by addition of different regeneration buffer, identified 4 M urea and 1 M sarcosine for plate coating and no regeneration buffer as the most optimal conditions for antibody detection. The specificities of the S-based ELISA for IgG and IgM detection were 98.6% and 93.9%, with corresponding sensitivities of 58.9% and 74.7%, respectively. The sensitivity of the rN IgG ELISA (94.7%) is significantly higher than that of the rS IgG ELISA (P < 0.001), whereas the sensitivity of the rS IgM ELISA is significantly higher than that of the rN IgM ELISA (55.2%) (P < 0.01). An ELISA for detection of IgM against S and N could be more sensitive than one that detects IgM against N alone for serodiagnosis of SARS-CoV pneumonia.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

pA  
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A02 01      @0 JCMIDW
A03   1    @0 J. clin. microbiol. : (Print)
A05       @2 43
A06       @2 7
A08 01  1  ENG  @1 Differential sensitivities of severe acute respiratory syndrome (SARS) coronavirus spike polypeptide enzyme-linked immunosorbent assay (ELISA) and SARS coronavirus nucleocapsid protein ELISA for serodiagnosis of SARS coronavirus pneumonia
A11 01  1    @1 WOO (Patrick C. Y.)
A11 02  1    @1 LAU (Susanna K. P.)
A11 03  1    @1 WONG (Beatrice H. L.)
A11 04  1    @1 TSOI (Hoi-Wah)
A11 05  1    @1 FUNG (Ami M. Y.)
A11 06  1    @1 KAO (Richard Y. T.)
A11 07  1    @1 CHAN (Kwok-Hung)
A11 08  1    @1 MALIK PEIRIS (J. S.)
A11 09  1    @1 YUEN (Kwok-Yung)
A14 01      @1 Department of Microbiology, Faculty of Medicine, The University of Hong Kong @3 HKG @Z 1 aut. @Z 2 aut. @Z 3 aut. @Z 4 aut. @Z 5 aut. @Z 6 aut. @Z 7 aut. @Z 8 aut. @Z 9 aut.
A14 02      @1 Research Centre of Infection and Immunology, Faculty of Medicine, The University of Hong Kong @3 HKG @Z 1 aut. @Z 2 aut. @Z 6 aut. @Z 8 aut. @Z 9 aut.
A20       @1 3054-3058
A21       @1 2005
A23 01      @0 ENG
A43 01      @1 INIST @2 17088 @5 354000132226670050
A44       @0 0000 @1 © 2005 INIST-CNRS. All rights reserved.
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A47 01  1    @0 05-0322075
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C01 01    ENG  @0 The use of recombinant severe acute respiratory syndrome-coronavirus (SARS-CoV) nucleocapsid protein (N) enzyme-linked immunosorbent assay (ELISA)-based antibody and antigen tests for diagnosis of SARS-CoV infections have been widely reported. However, no recombinant SARS-CoV spike protein (S)-based ELISA is currently available. In this article, we describe the problems and solutions of setting up the recombinant SARS-CoV S-based ELISA for antibody detection. The SARS-CoV S-based immunoglobulin M (IgM) and IgG ELISAs were evaluated and compared with the corresponding N-based ELISA for serodiagnosis of SARS-CoV pneumonia, using sera from 148 healthy blood donors who donated blood 3 years ago as controls and 95 SARS-CoV pneumonia patients in Hong Kong. Results obtained by the recombinant S (rS)-based IgG ELISA using the regenerated S prepared by dialysis with decreasing concentrations of urea or direct addition of different coating buffers, followed by addition of different regeneration buffer, identified 4 M urea and 1 M sarcosine for plate coating and no regeneration buffer as the most optimal conditions for antibody detection. The specificities of the S-based ELISA for IgG and IgM detection were 98.6% and 93.9%, with corresponding sensitivities of 58.9% and 74.7%, respectively. The sensitivity of the rN IgG ELISA (94.7%) is significantly higher than that of the rS IgG ELISA (P < 0.001), whereas the sensitivity of the rS IgM ELISA is significantly higher than that of the rN IgM ELISA (55.2%) (P < 0.01). An ELISA for detection of IgM against S and N could be more sensitive than one that detects IgM against N alone for serodiagnosis of SARS-CoV pneumonia.
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Format Inist (serveur)

NO : PASCAL 05-0322075 INIST
ET : Differential sensitivities of severe acute respiratory syndrome (SARS) coronavirus spike polypeptide enzyme-linked immunosorbent assay (ELISA) and SARS coronavirus nucleocapsid protein ELISA for serodiagnosis of SARS coronavirus pneumonia
AU : WOO (Patrick C. Y.); LAU (Susanna K. P.); WONG (Beatrice H. L.); TSOI (Hoi-Wah); FUNG (Ami M. Y.); KAO (Richard Y. T.); CHAN (Kwok-Hung); MALIK PEIRIS (J. S.); YUEN (Kwok-Yung)
AF : Department of Microbiology, Faculty of Medicine, The University of Hong Kong/Hong-Kong (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 7 aut., 8 aut., 9 aut.); Research Centre of Infection and Immunology, Faculty of Medicine, The University of Hong Kong/Hong-Kong (1 aut., 2 aut., 6 aut., 8 aut., 9 aut.)
DT : Publication en série; Niveau analytique
SO : Journal of clinical microbiology : (Print); ISSN 0095-1137; Coden JCMIDW; Etats-Unis; Da. 2005; Vol. 43; No. 7; Pp. 3054-3058; Bibl. 27 ref.
LA : Anglais
EA : The use of recombinant severe acute respiratory syndrome-coronavirus (SARS-CoV) nucleocapsid protein (N) enzyme-linked immunosorbent assay (ELISA)-based antibody and antigen tests for diagnosis of SARS-CoV infections have been widely reported. However, no recombinant SARS-CoV spike protein (S)-based ELISA is currently available. In this article, we describe the problems and solutions of setting up the recombinant SARS-CoV S-based ELISA for antibody detection. The SARS-CoV S-based immunoglobulin M (IgM) and IgG ELISAs were evaluated and compared with the corresponding N-based ELISA for serodiagnosis of SARS-CoV pneumonia, using sera from 148 healthy blood donors who donated blood 3 years ago as controls and 95 SARS-CoV pneumonia patients in Hong Kong. Results obtained by the recombinant S (rS)-based IgG ELISA using the regenerated S prepared by dialysis with decreasing concentrations of urea or direct addition of different coating buffers, followed by addition of different regeneration buffer, identified 4 M urea and 1 M sarcosine for plate coating and no regeneration buffer as the most optimal conditions for antibody detection. The specificities of the S-based ELISA for IgG and IgM detection were 98.6% and 93.9%, with corresponding sensitivities of 58.9% and 74.7%, respectively. The sensitivity of the rN IgG ELISA (94.7%) is significantly higher than that of the rS IgG ELISA (P < 0.001), whereas the sensitivity of the rS IgM ELISA is significantly higher than that of the rN IgM ELISA (55.2%) (P < 0.01). An ELISA for detection of IgM against S and N could be more sensitive than one that detects IgM against N alone for serodiagnosis of SARS-CoV pneumonia.
CC : 002A05; 002B05
FD : Virus syndrome respiratoire aigu sévère; Sensibilité; Polypeptide; Technique ELISA; Nucléocapside; Protéine; Microbiologie; Syndrome respiratoire aigu sévère; Pneumonie
FG : Coronavirus; Coronaviridae; Nidovirales; Virus; Appareil respiratoire pathologie; Virose; Infection; Poumon pathologie
ED : Severe acute respiratory syndrome virus; Sensitivity; Polypeptide; ELISA assay; Nucleocapsid; Protein; Microbiology; Severe acute respiratory syndrome; Pneumonia
EG : Coronavirus; Coronaviridae; Nidovirales; Virus; Respiratory disease; Viral disease; Infection; Lung disease
SD : Severe acute respiratory syndrome virus; Sensibilidad; Polipéptido; Técnica ELISA; Nucleocápside; Proteína; Microbiología; Síndrome respiratorio agudo severo; Neumonía
LO : INIST-17088.354000132226670050
ID : 05-0322075

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Pascal:05-0322075

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<div type="abstract" xml:lang="en">The use of recombinant severe acute respiratory syndrome-coronavirus (SARS-CoV) nucleocapsid protein (N) enzyme-linked immunosorbent assay (ELISA)-based antibody and antigen tests for diagnosis of SARS-CoV infections have been widely reported. However, no recombinant SARS-CoV spike protein (S)-based ELISA is currently available. In this article, we describe the problems and solutions of setting up the recombinant SARS-CoV S-based ELISA for antibody detection. The SARS-CoV S-based immunoglobulin M (IgM) and IgG ELISAs were evaluated and compared with the corresponding N-based ELISA for serodiagnosis of SARS-CoV pneumonia, using sera from 148 healthy blood donors who donated blood 3 years ago as controls and 95 SARS-CoV pneumonia patients in Hong Kong. Results obtained by the recombinant S (rS)-based IgG ELISA using the regenerated S prepared by dialysis with decreasing concentrations of urea or direct addition of different coating buffers, followed by addition of different regeneration buffer, identified 4 M urea and 1 M sarcosine for plate coating and no regeneration buffer as the most optimal conditions for antibody detection. The specificities of the S-based ELISA for IgG and IgM detection were 98.6% and 93.9%, with corresponding sensitivities of 58.9% and 74.7%, respectively. The sensitivity of the rN IgG ELISA (94.7%) is significantly higher than that of the rS IgG ELISA (P < 0.001), whereas the sensitivity of the rS IgM ELISA is significantly higher than that of the rN IgM ELISA (55.2%) (P < 0.01). An ELISA for detection of IgM against S and N could be more sensitive than one that detects IgM against N alone for serodiagnosis of SARS-CoV pneumonia.</div>
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<NO>PASCAL 05-0322075 INIST</NO>
<ET>Differential sensitivities of severe acute respiratory syndrome (SARS) coronavirus spike polypeptide enzyme-linked immunosorbent assay (ELISA) and SARS coronavirus nucleocapsid protein ELISA for serodiagnosis of SARS coronavirus pneumonia</ET>
<AU>WOO (Patrick C. Y.); LAU (Susanna K. P.); WONG (Beatrice H. L.); TSOI (Hoi-Wah); FUNG (Ami M. Y.); KAO (Richard Y. T.); CHAN (Kwok-Hung); MALIK PEIRIS (J. S.); YUEN (Kwok-Yung)</AU>
<AF>Department of Microbiology, Faculty of Medicine, The University of Hong Kong/Hong-Kong (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut., 7 aut., 8 aut., 9 aut.); Research Centre of Infection and Immunology, Faculty of Medicine, The University of Hong Kong/Hong-Kong (1 aut., 2 aut., 6 aut., 8 aut., 9 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of clinical microbiology : (Print); ISSN 0095-1137; Coden JCMIDW; Etats-Unis; Da. 2005; Vol. 43; No. 7; Pp. 3054-3058; Bibl. 27 ref.</SO>
<LA>Anglais</LA>
<EA>The use of recombinant severe acute respiratory syndrome-coronavirus (SARS-CoV) nucleocapsid protein (N) enzyme-linked immunosorbent assay (ELISA)-based antibody and antigen tests for diagnosis of SARS-CoV infections have been widely reported. However, no recombinant SARS-CoV spike protein (S)-based ELISA is currently available. In this article, we describe the problems and solutions of setting up the recombinant SARS-CoV S-based ELISA for antibody detection. The SARS-CoV S-based immunoglobulin M (IgM) and IgG ELISAs were evaluated and compared with the corresponding N-based ELISA for serodiagnosis of SARS-CoV pneumonia, using sera from 148 healthy blood donors who donated blood 3 years ago as controls and 95 SARS-CoV pneumonia patients in Hong Kong. Results obtained by the recombinant S (rS)-based IgG ELISA using the regenerated S prepared by dialysis with decreasing concentrations of urea or direct addition of different coating buffers, followed by addition of different regeneration buffer, identified 4 M urea and 1 M sarcosine for plate coating and no regeneration buffer as the most optimal conditions for antibody detection. The specificities of the S-based ELISA for IgG and IgM detection were 98.6% and 93.9%, with corresponding sensitivities of 58.9% and 74.7%, respectively. The sensitivity of the rN IgG ELISA (94.7%) is significantly higher than that of the rS IgG ELISA (P < 0.001), whereas the sensitivity of the rS IgM ELISA is significantly higher than that of the rN IgM ELISA (55.2%) (P < 0.01). An ELISA for detection of IgM against S and N could be more sensitive than one that detects IgM against N alone for serodiagnosis of SARS-CoV pneumonia.</EA>
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