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Chinese Journal of Virology ; (6): 383-389, 2008.
Artigo em Chinês | WPRIM | ID: wpr-334791

RESUMO

Human adenovirus serotype 5 (HAd5) infect dendritic cells with low efficiency which restricts the use of HAd5 as an antigen carrying vector in such cells. Aiming to find a novel strategy to detour the traditional method for more convenient clinical use, peripheral blood mononuclear cells isolated from Chinese rhesus macaques were chosen as the target cells for HAd5. In vitro infection protocol was optimized which indicated centrifugation at 1000g could ease the entry of adenovirus. By this protocol, CD14 positive monocytes were infected at high efficiencies (> 80%), and about 10% of natural killer cells were infected; while T and B lymphocytes were rarely infected. Interestingly and importantly, it was the first time to report that in our in vitro study monocytes were more susceptible to HAd5-EGFP in macaques with higher preexisting vector specific neutralizing antibody titers. This phenomenon indicates an expansion of application of adenovirus based vectors for vaccine development and clinical use, especially for the population with preexisting neutralizing antibodies.


Assuntos
Animais , Feminino , Humanos , Masculino , Adenoviridae , Classificação , Genética , Alergia e Imunologia , Anticorpos Antivirais , Sangue , Vetores Genéticos , Receptores de Lipopolissacarídeos , Macaca mulatta , Monócitos , Virologia , Testes de Neutralização , Recombinação Genética , Sorotipagem
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