Long-lived effector/central memory T-cell responses to severe acute respiratory syndrome coronavirus (SARS-CoV) S antigen in recovered SARS patients

The role of cell-mediated immunity in human SARS-CoV infection is still not well understood. In this study, we found that memory T-cell responses against the spike (S) protein were persistent for more than 1 year after SARS-CoV infection by detecting the production of IFN-gamma using ELISA and ELISp...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 120(2006), 2 vom: 15. Aug., Seite 171-8
1. Verfasser: Yang, Li-Tao (VerfasserIn)
Weitere Verfasser: Peng, Hui, Zhu, Zhao-Ling, Li, Gang, Huang, Zi-Tong, Zhao, Zhi-Xin, Koup, Richard A, Bailer, Robert T, Wu, Chang-You
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Antigens, Viral Antiviral Agents Interleukin-2 Membrane Glycoproteins Peptides Spike Glycoprotein, Coronavirus Viral Envelope Proteins spike glycoprotein, SARS-CoV mehr... spike protein, mouse hepatitis virus Interferon-gamma 82115-62-6
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245 1 0 |a Long-lived effector/central memory T-cell responses to severe acute respiratory syndrome coronavirus (SARS-CoV) S antigen in recovered SARS patients 
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520 |a The role of cell-mediated immunity in human SARS-CoV infection is still not well understood. In this study, we found that memory T-cell responses against the spike (S) protein were persistent for more than 1 year after SARS-CoV infection by detecting the production of IFN-gamma using ELISA and ELISpot assays. Flow cytometric analysis showed that both CD4(+) and CD8(+) T cells were involved in cellular responses against SARS-CoV infection. Interestingly, most of SARS-CoV S-specific memory CD4(+) T cells were central memory cells expressing CD45RO(+) CCR7(+) CD62L(-). However, the majority of memory CD8(+) T cells revealed effector memory phenotype expressing CD45RO(-) CCR7(-) CD62L(-). Thus, our study provides the evidence that SARS-CoV infection in humans can induce cellular immune response that is persistent for a long period of time. These data may have an important implication in the possibility of designing effective vaccine against SARS-CoV infection, specifically in defining T-cell populations that are implicated in protective immunity 
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650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Interleukin-2  |2 NLM 
650 7 |a Membrane Glycoproteins  |2 NLM 
650 7 |a Peptides  |2 NLM 
650 7 |a Spike Glycoprotein, Coronavirus  |2 NLM 
650 7 |a Viral Envelope Proteins  |2 NLM 
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650 7 |a spike protein, mouse hepatitis virus  |2 NLM 
650 7 |a Interferon-gamma  |2 NLM 
650 7 |a 82115-62-6  |2 NLM 
700 1 |a Peng, Hui  |e verfasserin  |4 aut 
700 1 |a Zhu, Zhao-Ling  |e verfasserin  |4 aut 
700 1 |a Li, Gang  |e verfasserin  |4 aut 
700 1 |a Huang, Zi-Tong  |e verfasserin  |4 aut 
700 1 |a Zhao, Zhi-Xin  |e verfasserin  |4 aut 
700 1 |a Koup, Richard A  |e verfasserin  |4 aut 
700 1 |a Bailer, Robert T  |e verfasserin  |4 aut 
700 1 |a Wu, Chang-You  |e verfasserin  |4 aut 
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