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Homo sapiens

ABSTRACT: Changes in PBMC gene expression profiles after influenza vaccination in healthy human subjects

PROVIDER: PRJNA196146 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR805780.fastq.gz	Fastqsanger.gz
	SRR805781.fastq.gz	Fastqsanger.gz
	SRR805782.fastq.gz	Fastqsanger.gz
	SRR805783.fastq.gz	Fastqsanger.gz
	SRR805784.fastq.gz	Fastqsanger.gz

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Project description:Changes in gene expression profiles of circulating B cells after influenza vaccination in healthy human subjects

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Changes in PBMC gene expression profiles after influenza vaccination in healthy human subjects

Project description:Daily sampling of peripheral blood from human subjects vaccinated for influenza was done immediately before vaccination and for 10 days after vaccination. Temporal patterns of gene expression, determined by RNA-seq, in unfractionated PBMC suggested migration of myeloid/dendritic cell lineage cells one day after vaccination. Five subjects, 11 time points per subject (pre-vaccination and daily for 10 days post-vaccination)

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Project description:We profiled gene expression from a stratified cohort of subjects to define influenza vaccine response in Young and Old Differential gene expression by human PBMCs from Healthy Adults receiving Influenza Vaccination (Fluvirin, Novartis). Healthy adults (older >65, younger 21-30 years) were recruited at seasonal Influenza Vaccination clinics organized by Yale University Health Services during October to December of 2010 M-bM-^@M-^S 2011 and 2011-2012 seasons. With informed consent, healthy individuals were recruited as per a protocol approved by Human Investigations Committee of the Yale University School of Medicine. Each subject was evaluated by a screening questionnaire determining self-reported demographic information, height, weight, medications and comorbid conditions. Participants with acute illness two weeks prior to vaccination were excluded from study. Blood samples were collected into BD Vacutainer Sodium Heparin tube at four different time points, once prior to administration of vaccine and three time points after vaccination on days 2/4, 7 and 28. Peripheral Blood Mononuclear Cells (PBMC) were isolated from heparinized blood using Histopaque 1077 in gradient centrifugation. About 1.0x10^7 freshly isolated PBMC were lysed in Triso and immediately stored in -800C. Total RNA in aqueous phase of Trisol - Chloroform was isolated in an automated QiaCube instrument using miRNeasy according to manufacturerM-bM-^@M-^Ys instructions. Integrity of RNA samples were assessed by Agilent 2100 BioAnalyser Samples were processed for cRNA generation using Illumina TotalPrep cRNA Amplification Kit and subsequently hybridized to Human HT12-V4.0 BeadChip at Yale Center for Genomic Analysis (YGCA).

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A Cell-based Systems Biology Assessment of Human Blood to Monitor Immune Responses After Influenza Vaccination

Project description:Systems biology is an approach to comprehensively study complex interactions within a biological system. Most published systems vaccinology studies have utilized whole blood or peripheral blood mononuclear cells (PBMC) to monitor the immune response after vaccination. Because human blood is comprised of multiple hematopoietic cell types, the potential for masking responses of under-represented cell populations is increased when analyzing whole blood or PBMC. To investigate the contribution of individual cell types to the immune response after vaccination, we established a rapid and efficient method to purify human T and B cells, natural killer (NK) cells, myeloid dendritic cells (mDC), monocytes, and neutrophils from fresh venous blood. Purified cells were fractionated and processed in a single day. RNA-Seq and quantitative shotgun proteomics were performed to determine expression profiles for each cell type prior to and after inactivated seasonal influenza vaccination. Our results show that transcriptomic and proteomic profiles generated from purified immune cells differ significantly from PBMC. Differential expression analysis for each immune cell type also shows unique transcriptomic and proteomic expression profiles as well as changing biological networks at early time points after vaccination. This cell type-specific information provides a more comprehensive approach to monitor vaccine responses.

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Project description:To characterize the primary and recall responses to EV71 vaccines, PBMC from 19 recipients before and after vaccination with EV71 vaccine are collected and their gene expression signatures after stimulation with EV71 antigen were compared. Four-condition experiment,pre-vaccination PBMCs (stimulation vs. no stimulation with EV71 antigen) vs. post-vaccination PBMCs (stimulation vs. no stimulation with EV71 antigen)

2015-09-03 | E-GEOD-72618 | biostudies-arrayexpress

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