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Immunology and Infection

Uma Published: December 10, 2013 doi: 10.3791/50766

Abstract

O vírus sincicial respiratório humano (HRSV) infecções apresentar um largo espectro de gravidade da doença, variando desde as infecções suaves a bronquiolite com risco de vida. Uma parte importante da patogênese da doença grave é uma resposta imune melhorada levando a imunopatologia.

Aqui, nós descrevemos um protocolo usado para investigar a resposta imune de células do sistema imunológico humano a uma infecção HRSV. Em primeiro lugar, descrevemos métodos utilizados para a cultura, purificação e quantificação de HRSV. Subsequentemente, foi descrito um modelo humano in vitro, em que as células mononucleares do sangue periférico (PBMC) são estimuladas com HRSV vivo. Este sistema modelo pode ser usado para estudar vários parâmetros que podem contribuir para a gravidade da doença, incluindo a resposta imune inata e adaptativa. Estas respostas podem ser medido ao nível da transcrição e da tradução. Além disso, a infecção virai de células pode ser facilmente medida utilizando citometria de fluxo. Tomadojuntos, a estimulação de PBMC com HRSV vivo fornece um sistema modelo rápido e reprodutível para examinar os mecanismos envolvidos na doença induzida por HRSV.

Materials

Name Company Catalog Number Comments
Reagent
PBS Lonza BE17-516F PBS without Ca2+ Mg2+ or phenol red
HBSS Invitrogen 14025-100 HBSS, Calcium, Magnesium, no Phenol Red
DMEM Invitrogen 31966-047 DMEM, High Glucose, GlutaMAX, Pyruvate
RPMI Invitrogen 72400054 RPMI 1640 Medium, GlutaMAX, HEPES
Reduced Serum Medium (Opti-MEM) Invitrogen 51985-026 Opti-MEM I Reduced Serum Medium, GlutaMAX
FCS Greiner Bio-one FBS (Fetal Bovine Serum)
BSA Sigma Aldrich A7030 Albumin from bovine serum
P/S Invitrogen 15140-122 Penicillin-Streptomycin, liquid
Trypsin Invitrogen 25300-054 0.05% Trypsin-EDTA (1x), Phenol Red
HeLa cells ATCC CCL-2
A549 cells ATCC CCL-185
Sucrose Sigma Aldrich S7903 Sucrose BioXtra, ≥99.5%
IgG2 anti-mouse-FITC BD Pharmingen 555057 Ms IgG2b K FITC isotype control
Anti-NP-RSV-FITC Abcam ab25849 Anti-Respiratory Syncytial Virus antibody [671] (FITC)
Density gradient medium (Lymphoprep) Axis-Shield 1114545
EDTA tubes BD Biosciences 367525
Acetone Merck Millipore 1000141000 Acetone for analysis
Material
Centrifuge Tubes Beckman Coulter 326823 Thinwall, Polyallomer, 38.5 ml, 25 mm x 89 mm
SureSpin 630 Rotor with 36 ml buckets Sorvall 79368 Swinging bucket titanium rotor
Sorvall WX80 Ultracentrifuge Sorvall 46900
CB 150l CO2 Incubator Binder

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Uma<em&gt; In vitro</em&gt; Modelo para estudar respostas imunes de sangue periférico humano células mononucleares para Vírus Respiratório Sincicial Humano Infecção
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Cite this Article

Vissers, M., Habets, M. N., Ahout,More

Vissers, M., Habets, M. N., Ahout, I. M. L., Jans, J., de Jonge, M. I., Diavatopoulos, D. A., Ferwerda, G. An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection. J. Vis. Exp. (82), e50766, doi:10.3791/50766 (2013).

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