The potential impact of CD4+ T cell activation and enhanced Th1/Th2 cytokine ratio on HIV-1 secretion in the lungs of individuals with advanced AIDS and active pulmonary infection

Copyright © 2011 Elsevier Inc. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 139(2011), 2 vom: 15. Mai, Seite 142-54
1. Verfasser: Rubbo, Pierre-Alain (VerfasserIn)
Weitere Verfasser: Tuaillon, Edouard, Bolloré, Karine, Foulongne, Vincent, Bourdin, Arnaud, Nagot, Nicolas, Van de Perre, Philippe, Desgranges, Claude, Israël-Biet, Dominique, Vendrell, Jean-Pierre
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Antigens, CD CXCR4 protein, human Cytokines DNA, Viral HIV Antigens RNA, Viral Receptors, CCR5 Receptors, CXCR4 mehr... Interferon-gamma 82115-62-6 Cycloheximide 98600C0908
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100 1 |a Rubbo, Pierre-Alain  |e verfasserin  |4 aut 
245 1 4 |a The potential impact of CD4+ T cell activation and enhanced Th1/Th2 cytokine ratio on HIV-1 secretion in the lungs of individuals with advanced AIDS and active pulmonary infection 
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520 |a Bronchoalveolar lavage fluid (BALF) provides a source of mucosal CD4(+) T cells. We investigated the physiological properties of T lymphocytes from BALF and blood and their role on the dynamic of HIV-1 replication among AIDS patients with active lung infections. Pulmonary CD4(+) T cells consist mainly of effector memory cells (CD45RO(+) and CCR7(-)) with increased expression of activation markers (HLA-DR(+) and CD69(+)) when compared to the blood counterpart. We observed a high frequency of BALF cells capable of secreting HIV-1-Ags suggesting that the local lung environment may support favorable conditions for CD4(+) T lymphocytes harboring HIV-1 DNA to initiate the viral cycle. Nevertheless, the high number of IFN-γ-producing cells and the predominance of Th1 immune response in the lung could limit the secretion of HIV-1 RNA. In conclusion, the capacity of activated CD4(+) T cells to produce HIV-1 is driven by both the level and quality of cellular activation in the lung 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 7 |a Antigens, CD  |2 NLM 
650 7 |a CXCR4 protein, human  |2 NLM 
650 7 |a Cytokines  |2 NLM 
650 7 |a DNA, Viral  |2 NLM 
650 7 |a HIV Antigens  |2 NLM 
650 7 |a RNA, Viral  |2 NLM 
650 7 |a Receptors, CCR5  |2 NLM 
650 7 |a Receptors, CXCR4  |2 NLM 
650 7 |a Interferon-gamma  |2 NLM 
650 7 |a 82115-62-6  |2 NLM 
650 7 |a Cycloheximide  |2 NLM 
650 7 |a 98600C0908  |2 NLM 
700 1 |a Tuaillon, Edouard  |e verfasserin  |4 aut 
700 1 |a Bolloré, Karine  |e verfasserin  |4 aut 
700 1 |a Foulongne, Vincent  |e verfasserin  |4 aut 
700 1 |a Bourdin, Arnaud  |e verfasserin  |4 aut 
700 1 |a Nagot, Nicolas  |e verfasserin  |4 aut 
700 1 |a Van de Perre, Philippe  |e verfasserin  |4 aut 
700 1 |a Desgranges, Claude  |e verfasserin  |4 aut 
700 1 |a Israël-Biet, Dominique  |e verfasserin  |4 aut 
700 1 |a Vendrell, Jean-Pierre  |e verfasserin  |4 aut 
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773 1 8 |g volume:139  |g year:2011  |g number:2  |g day:15  |g month:05  |g pages:142-54 
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