Efficient induction of cytotoxic T lymphocytes specific for severe acute respiratory syndrome (SARS)-associated coronavirus by immunization with surface-linked liposomal peptides derived from a non-structural polyprotein 1a.
Identifieur interne : 001F96 ( Ncbi/Curation ); précédent : 001F95; suivant : 001F97Efficient induction of cytotoxic T lymphocytes specific for severe acute respiratory syndrome (SARS)-associated coronavirus by immunization with surface-linked liposomal peptides derived from a non-structural polyprotein 1a.
Auteurs : Shunsuke Kohyama [Japon] ; Satoshi Ohno ; Tatsuya Suda ; Maiko Taneichi ; Shoichi Yokoyama ; Masahito Mori ; Akiharu Kobayashi ; Hidenori Hayashi ; Tetsuya Uchida ; Masanori MatsuiSource :
- Antiviral research [ 1872-9096 ] ; 2009.
Descripteurs français
- KwdFr :
- Animaux, Données de séquences moléculaires, Déterminants antigéniques des lymphocytes T (), Humains, Immunisation, Lignée cellulaire, Liposomes (), Liposomes (administration et posologie), Liposomes (immunologie), Lymphocytes T cytotoxiques (), Lymphocytes T cytotoxiques (immunologie), Peptides (), Peptides (administration et posologie), Peptides (immunologie), Protéines virales non structurales (), Protéines virales non structurales (immunologie), RNA replicase (), RNA replicase (immunologie), Souris, Souris transgéniques, Syndrome respiratoire aigu sévère (), Syndrome respiratoire aigu sévère (immunologie), Syndrome respiratoire aigu sévère (virologie), Séquence d'acides aminés, Séquence nucléotidique, Vaccins antiviraux, Virus du SRAS (immunologie).
- MESH :
- administration et posologie : Liposomes, Peptides.
- immunologie : Liposomes, Lymphocytes T cytotoxiques, Peptides, Protéines virales non structurales, RNA replicase, Syndrome respiratoire aigu sévère, Virus du SRAS.
- virologie : Syndrome respiratoire aigu sévère.
- Animaux, Données de séquences moléculaires, Déterminants antigéniques des lymphocytes T, Humains, Immunisation, Lignée cellulaire, Liposomes, Lymphocytes T cytotoxiques, Peptides, Protéines virales non structurales, RNA replicase, Souris, Souris transgéniques, Syndrome respiratoire aigu sévère, Séquence d'acides aminés, Séquence nucléotidique, Vaccins antiviraux.
English descriptors
- KwdEn :
- Amino Acid Sequence, Animals, Base Sequence, Cell Line, Epitopes, T-Lymphocyte (chemistry), Humans, Immunization, Liposomes (administration & dosage), Liposomes (chemistry), Liposomes (immunology), Mice, Mice, Transgenic, Molecular Sequence Data, Peptides (administration & dosage), Peptides (chemistry), Peptides (immunology), RNA Replicase (chemistry), RNA Replicase (immunology), SARS Virus (immunology), Severe Acute Respiratory Syndrome (immunology), Severe Acute Respiratory Syndrome (prevention & control), Severe Acute Respiratory Syndrome (virology), T-Lymphocytes, Cytotoxic (chemistry), T-Lymphocytes, Cytotoxic (immunology), Viral Nonstructural Proteins (chemistry), Viral Nonstructural Proteins (immunology), Viral Vaccines.
- MESH :
- chemical , administration & dosage : Liposomes, Peptides.
- chemical , chemistry : Epitopes, T-Lymphocyte, Liposomes, Peptides, RNA Replicase, Viral Nonstructural Proteins.
- chemical , immunology : Liposomes, Peptides, RNA Replicase, Viral Nonstructural Proteins.
- chemistry : T-Lymphocytes, Cytotoxic.
- immunology : SARS Virus, Severe Acute Respiratory Syndrome, T-Lymphocytes, Cytotoxic.
- prevention & control : Severe Acute Respiratory Syndrome.
- virology : Severe Acute Respiratory Syndrome.
- Amino Acid Sequence, Animals, Base Sequence, Cell Line, Humans, Immunization, Mice, Mice, Transgenic, Molecular Sequence Data, Viral Vaccines.
Abstract
Spike and nucleocapsid are structural proteins of severe acute respiratory syndrome (SARS)-associated coronavirus (SARS-CoV) and major targets for cytotoxic T lymphocytes (CTLs). In contrast, non-structural proteins encoded by two-thirds of viral genome are poorly characterized for cell-mediated immunity. We previously demonstrated that nucleocapsid-derived peptides chemically coupled to the surface of liposomes effectively elicited SARS-CoV-specific CTLs in mice. Here, we attempted to identify HLA-A*0201-restricted CTL epitopes derived from a non-structural polyprotein 1a (pp1a) of SARS-CoV, and investigated whether liposomal peptides derived from pp1a were effective for CTL induction. Out of 30 peptides predicted on computational algorithms, nine peptides could significantly induce interferon gamma (IFN-gamma)-producing CD8(+) T cells in mice. These peptides were coupled to the surface of liposomes, and inoculated into mice. Six liposomal peptides effectively induced IFN-gamma-producing CD8(+) T cells and seven liposomal peptides including the six peptides primed CTLs showing in vivo killing activities. Further, CTLs induced by the seven liposomal peptides lysed an HLA-A*0201 positive cell line expressing naturally processed, pp1a-derived peptides. Of note, one of the liposomal peptides induced high numbers of long-lasting memory CTLs. These data suggest that surface-linked liposomal peptides derived from pp1a might offer an efficient CTL-based vaccine against SARS.
DOI: 10.1016/j.antiviral.2009.09.004
PubMed: 19748524
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<term>Animals</term>
<term>Base Sequence</term>
<term>Cell Line</term>
<term>Epitopes, T-Lymphocyte (chemistry)</term>
<term>Humans</term>
<term>Immunization</term>
<term>Liposomes (administration & dosage)</term>
<term>Liposomes (chemistry)</term>
<term>Liposomes (immunology)</term>
<term>Mice</term>
<term>Mice, Transgenic</term>
<term>Molecular Sequence Data</term>
<term>Peptides (administration & dosage)</term>
<term>Peptides (chemistry)</term>
<term>Peptides (immunology)</term>
<term>RNA Replicase (chemistry)</term>
<term>RNA Replicase (immunology)</term>
<term>SARS Virus (immunology)</term>
<term>Severe Acute Respiratory Syndrome (immunology)</term>
<term>Severe Acute Respiratory Syndrome (prevention & control)</term>
<term>Severe Acute Respiratory Syndrome (virology)</term>
<term>T-Lymphocytes, Cytotoxic (chemistry)</term>
<term>T-Lymphocytes, Cytotoxic (immunology)</term>
<term>Viral Nonstructural Proteins (chemistry)</term>
<term>Viral Nonstructural Proteins (immunology)</term>
<term>Viral Vaccines</term>
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<term>Données de séquences moléculaires</term>
<term>Déterminants antigéniques des lymphocytes T ()</term>
<term>Humains</term>
<term>Immunisation</term>
<term>Lignée cellulaire</term>
<term>Liposomes ()</term>
<term>Liposomes (administration et posologie)</term>
<term>Liposomes (immunologie)</term>
<term>Lymphocytes T cytotoxiques ()</term>
<term>Lymphocytes T cytotoxiques (immunologie)</term>
<term>Peptides ()</term>
<term>Peptides (administration et posologie)</term>
<term>Peptides (immunologie)</term>
<term>Protéines virales non structurales ()</term>
<term>Protéines virales non structurales (immunologie)</term>
<term>RNA replicase ()</term>
<term>RNA replicase (immunologie)</term>
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<term>Souris transgéniques</term>
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<term>Syndrome respiratoire aigu sévère (immunologie)</term>
<term>Syndrome respiratoire aigu sévère (virologie)</term>
<term>Séquence d'acides aminés</term>
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<term>Virus du SRAS (immunologie)</term>
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<term>Peptides</term>
<term>RNA Replicase</term>
<term>Viral Nonstructural Proteins</term>
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<keywords scheme="MESH" type="chemical" qualifier="immunology" xml:lang="en"><term>Liposomes</term>
<term>Peptides</term>
<term>RNA Replicase</term>
<term>Viral Nonstructural Proteins</term>
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<term>RNA replicase</term>
<term>Syndrome respiratoire aigu sévère</term>
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<term>Immunisation</term>
<term>Lignée cellulaire</term>
<term>Liposomes</term>
<term>Lymphocytes T cytotoxiques</term>
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<front><div type="abstract" xml:lang="en">Spike and nucleocapsid are structural proteins of severe acute respiratory syndrome (SARS)-associated coronavirus (SARS-CoV) and major targets for cytotoxic T lymphocytes (CTLs). In contrast, non-structural proteins encoded by two-thirds of viral genome are poorly characterized for cell-mediated immunity. We previously demonstrated that nucleocapsid-derived peptides chemically coupled to the surface of liposomes effectively elicited SARS-CoV-specific CTLs in mice. Here, we attempted to identify HLA-A*0201-restricted CTL epitopes derived from a non-structural polyprotein 1a (pp1a) of SARS-CoV, and investigated whether liposomal peptides derived from pp1a were effective for CTL induction. Out of 30 peptides predicted on computational algorithms, nine peptides could significantly induce interferon gamma (IFN-gamma)-producing CD8(+) T cells in mice. These peptides were coupled to the surface of liposomes, and inoculated into mice. Six liposomal peptides effectively induced IFN-gamma-producing CD8(+) T cells and seven liposomal peptides including the six peptides primed CTLs showing in vivo killing activities. Further, CTLs induced by the seven liposomal peptides lysed an HLA-A*0201 positive cell line expressing naturally processed, pp1a-derived peptides. Of note, one of the liposomal peptides induced high numbers of long-lasting memory CTLs. These data suggest that surface-linked liposomal peptides derived from pp1a might offer an efficient CTL-based vaccine against SARS.</div>
</front>
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