Determination and application of immunodominant regions of SARS coronavirus spike and nucleocapsid proteins recognized by sera from different animal species.
Identifieur interne : 003130 ( Main/Exploration ); précédent : 003129; suivant : 003131Determination and application of immunodominant regions of SARS coronavirus spike and nucleocapsid proteins recognized by sera from different animal species.
Auteurs : Meng Yu [Australie] ; Vicky Stevens ; Jody D. Berry ; Gary Crameri ; Jennifer Mceachern ; Changchun Tu ; Zhengli Shi ; Guodong Liang ; Hana Weingartl ; Jane Cardosa ; Bryan T. Eaton ; Lin-Fa WangSource :
- Journal of immunological methods [ 0022-1759 ] ; 2008.
Descripteurs français
- KwdFr :
- Animaux, Anticorps antiviraux (immunologie), Anticorps antiviraux (sang), Antigènes viraux (immunologie), Equus caballus, Glycoprotéine de spicule des coronavirus, Glycoprotéines membranaires (immunologie), Humains, Lapins, Lignée cellulaire, Protéines de l'enveloppe virale (immunologie), Protéines nucléocapside (immunologie), Protéines recombinantes (immunologie), Rats, Souris, Suidae, Syndrome respiratoire aigu sévère (diagnostic), Test ELISA (), Virus du SRAS (immunologie), Viverridae, Épitopes immunodominants (immunologie).
- MESH :
- diagnostic : Syndrome respiratoire aigu sévère.
- immunologie : Anticorps antiviraux, Antigènes viraux, Glycoprotéines membranaires, Protéines de l'enveloppe virale, Protéines nucléocapside, Protéines recombinantes, Virus du SRAS, Épitopes immunodominants.
- sang : Anticorps antiviraux.
- Animaux, Equus caballus, Glycoprotéine de spicule des coronavirus, Humains, Lapins, Lignée cellulaire, Rats, Souris, Suidae, Test ELISA, Viverridae.
English descriptors
- KwdEn :
- Animals, Antibodies, Viral (blood), Antibodies, Viral (immunology), Antigens, Viral (immunology), Cell Line, Enzyme-Linked Immunosorbent Assay (methods), Horses, Humans, Immunodominant Epitopes (immunology), Membrane Glycoproteins (immunology), Mice, Nucleocapsid Proteins (immunology), Rabbits, Rats, Recombinant Proteins (immunology), SARS Virus (immunology), Severe Acute Respiratory Syndrome (diagnosis), Spike Glycoprotein, Coronavirus, Swine, Viral Envelope Proteins (immunology), Viverridae.
- MESH :
- chemical , blood : Antibodies, Viral.
- chemical , immunology : Antibodies, Viral, Antigens, Viral, Immunodominant Epitopes, Membrane Glycoproteins, Nucleocapsid Proteins, Recombinant Proteins, Viral Envelope Proteins.
- diagnosis : Severe Acute Respiratory Syndrome.
- immunology : SARS Virus.
- methods : Enzyme-Linked Immunosorbent Assay.
- Animals, Cell Line, Horses, Humans, Mice, Rabbits, Rats, Spike Glycoprotein, Coronavirus, Swine, Viverridae.
Abstract
Knowledge of immunodominant regions in major viral antigens is important for rational design of effective vaccines and diagnostic tests. Although there have been many reports of such work done for SARS-CoV, these were mainly focused on the immune responses of humans and mice. In this study, we aim to search for and compare immunodominant regions of the spike (S) and nucleocapsid (N) proteins which are recognized by sera from different animal species, including mouse, rat, rabbit, civet, pig and horse. Twelve overlapping recombinant protein fragments were produced in Escherichia coli, six each for the S and N proteins, which covered the entire coding region of the two proteins. Using a membrane-strip based Western blot approach, the reactivity of each antigen fragment against a panel of animal sera was determined. Immunodominant regions containing linear epitopes, which reacted with sera from all the species tested, were identified for both proteins. The S3 fragment (aa 402-622) and the N4 fragment (aa 220-336) were the most immunodominant among the six S and N fragments, respectively. Antibodies raised against the S3 fragment were able to block the binding of a panel of S-specific monoclonal antibodies (mAb) to SARS-CoV in ELISA, further demonstrating the immunodominance of this region. Based on these findings, one-step competition ELISAs were established which were able to detect SARS-CoV antibodies from human and at least seven different animal species. Considering that a large number of animal species are known to be susceptible to SARS-CoV, these assays will be a useful tool to trace the origin and transmission of SARS-CoV and to minimise the risk of animal-to-human transmission.
DOI: 10.1016/j.jim.2007.11.009
PubMed: 18191140
Affiliations:
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Eaton</name></author><author><name sortKey="Wang, Lin Fa" sort="Wang, Lin Fa" uniqKey="Wang L" first="Lin-Fa" last="Wang">Lin-Fa Wang</name></author></analytic><series><title level="j">Journal of immunological methods</title><idno type="ISSN">0022-1759</idno><imprint><date when="2008" type="published">2008</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Antibodies, Viral (blood)</term><term>Antibodies, Viral (immunology)</term><term>Antigens, Viral (immunology)</term><term>Cell Line</term><term>Enzyme-Linked Immunosorbent Assay (methods)</term><term>Horses</term><term>Humans</term><term>Immunodominant Epitopes (immunology)</term><term>Membrane Glycoproteins (immunology)</term><term>Mice</term><term>Nucleocapsid Proteins (immunology)</term><term>Rabbits</term><term>Rats</term><term>Recombinant Proteins (immunology)</term><term>SARS Virus (immunology)</term><term>Severe Acute Respiratory Syndrome (diagnosis)</term><term>Spike Glycoprotein, Coronavirus</term><term>Swine</term><term>Viral Envelope Proteins (immunology)</term><term>Viverridae</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Animaux</term><term>Anticorps antiviraux (immunologie)</term><term>Anticorps antiviraux (sang)</term><term>Antigènes viraux (immunologie)</term><term>Equus caballus</term><term>Glycoprotéine de spicule des coronavirus</term><term>Glycoprotéines membranaires (immunologie)</term><term>Humains</term><term>Lapins</term><term>Lignée cellulaire</term><term>Protéines de l'enveloppe virale (immunologie)</term><term>Protéines nucléocapside (immunologie)</term><term>Protéines recombinantes (immunologie)</term><term>Rats</term><term>Souris</term><term>Suidae</term><term>Syndrome respiratoire aigu sévère (diagnostic)</term><term>Test ELISA ()</term><term>Virus du SRAS (immunologie)</term><term>Viverridae</term><term>Épitopes immunodominants (immunologie)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="blood" xml:lang="en"><term>Antibodies, Viral</term></keywords><keywords scheme="MESH" type="chemical" qualifier="immunology" xml:lang="en"><term>Antibodies, Viral</term><term>Antigens, Viral</term><term>Immunodominant Epitopes</term><term>Membrane Glycoproteins</term><term>Nucleocapsid Proteins</term><term>Recombinant Proteins</term><term>Viral Envelope Proteins</term></keywords><keywords scheme="MESH" qualifier="diagnosis" xml:lang="en"><term>Severe Acute Respiratory Syndrome</term></keywords><keywords scheme="MESH" qualifier="diagnostic" xml:lang="fr"><term>Syndrome respiratoire aigu sévère</term></keywords><keywords scheme="MESH" qualifier="immunologie" xml:lang="fr"><term>Anticorps antiviraux</term><term>Antigènes viraux</term><term>Glycoprotéines membranaires</term><term>Protéines de l'enveloppe virale</term><term>Protéines nucléocapside</term><term>Protéines recombinantes</term><term>Virus du SRAS</term><term>Épitopes immunodominants</term></keywords><keywords scheme="MESH" qualifier="immunology" xml:lang="en"><term>SARS Virus</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Enzyme-Linked Immunosorbent Assay</term></keywords><keywords scheme="MESH" qualifier="sang" xml:lang="fr"><term>Anticorps antiviraux</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Cell Line</term><term>Horses</term><term>Humans</term><term>Mice</term><term>Rabbits</term><term>Rats</term><term>Spike Glycoprotein, Coronavirus</term><term>Swine</term><term>Viverridae</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Animaux</term><term>Equus caballus</term><term>Glycoprotéine de spicule des coronavirus</term><term>Humains</term><term>Lapins</term><term>Lignée cellulaire</term><term>Rats</term><term>Souris</term><term>Suidae</term><term>Test ELISA</term><term>Viverridae</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Knowledge of immunodominant regions in major viral antigens is important for rational design of effective vaccines and diagnostic tests. Although there have been many reports of such work done for SARS-CoV, these were mainly focused on the immune responses of humans and mice. In this study, we aim to search for and compare immunodominant regions of the spike (S) and nucleocapsid (N) proteins which are recognized by sera from different animal species, including mouse, rat, rabbit, civet, pig and horse. Twelve overlapping recombinant protein fragments were produced in Escherichia coli, six each for the S and N proteins, which covered the entire coding region of the two proteins. Using a membrane-strip based Western blot approach, the reactivity of each antigen fragment against a panel of animal sera was determined. Immunodominant regions containing linear epitopes, which reacted with sera from all the species tested, were identified for both proteins. The S3 fragment (aa 402-622) and the N4 fragment (aa 220-336) were the most immunodominant among the six S and N fragments, respectively. Antibodies raised against the S3 fragment were able to block the binding of a panel of S-specific monoclonal antibodies (mAb) to SARS-CoV in ELISA, further demonstrating the immunodominance of this region. Based on these findings, one-step competition ELISAs were established which were able to detect SARS-CoV antibodies from human and at least seven different animal species. Considering that a large number of animal species are known to be susceptible to SARS-CoV, these assays will be a useful tool to trace the origin and transmission of SARS-CoV and to minimise the risk of animal-to-human transmission.</div></front></TEI><affiliations><list><country><li>Australie</li></country></list><tree><noCountry><name sortKey="Berry, Jody D" sort="Berry, Jody D" uniqKey="Berry J" first="Jody D" last="Berry">Jody D. Berry</name><name sortKey="Cardosa, Jane" sort="Cardosa, Jane" uniqKey="Cardosa J" first="Jane" last="Cardosa">Jane Cardosa</name><name sortKey="Crameri, Gary" sort="Crameri, Gary" uniqKey="Crameri G" first="Gary" last="Crameri">Gary Crameri</name><name sortKey="Eaton, Bryan T" sort="Eaton, Bryan T" uniqKey="Eaton B" first="Bryan T" last="Eaton">Bryan T. Eaton</name><name sortKey="Liang, Guodong" sort="Liang, Guodong" uniqKey="Liang G" first="Guodong" last="Liang">Guodong Liang</name><name sortKey="Mceachern, Jennifer" sort="Mceachern, Jennifer" uniqKey="Mceachern J" first="Jennifer" last="Mceachern">Jennifer Mceachern</name><name sortKey="Shi, Zhengli" sort="Shi, Zhengli" uniqKey="Shi Z" first="Zhengli" last="Shi">Zhengli Shi</name><name sortKey="Stevens, Vicky" sort="Stevens, Vicky" uniqKey="Stevens V" first="Vicky" last="Stevens">Vicky Stevens</name><name sortKey="Tu, Changchun" sort="Tu, Changchun" uniqKey="Tu C" first="Changchun" last="Tu">Changchun Tu</name><name sortKey="Wang, Lin Fa" sort="Wang, Lin Fa" uniqKey="Wang L" first="Lin-Fa" last="Wang">Lin-Fa Wang</name><name sortKey="Weingartl, Hana" sort="Weingartl, Hana" uniqKey="Weingartl H" first="Hana" last="Weingartl">Hana Weingartl</name></noCountry><country name="Australie"><noRegion><name sortKey="Yu, Meng" sort="Yu, Meng" uniqKey="Yu M" first="Meng" last="Yu">Meng Yu</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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