Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Multimodal Analysis for Human ex vivo Studies Shows Extensive Molecular Changes from Delays in Blood Processing

ABSTRACT: Multi-omic profiling of human peripheral blood is increasingly utilized to identify biomarkers and pathophysiologic mechanisms of disease. The importance of these platforms in clinical and translational studies led us to investigate the impact of delayed blood processing on the numbers and state of peripheral blood mononuclear cells (PBMC) and on the plasma proteome. Similar to previous studies, we show minimal effects of delayed processing on the numbers and general phenotype of PBMCs up to 18 hours. In contrast, profound changes in the single-cell transcriptome and composition of the plasma proteome become evident as early as 6 hours after blood draw. These reflect patterns of cellular activation across diverse cell types that lead to progressive distancing of the gene expression state and plasma proteome from native in vivo biology. Differences accumulating during an overnight rest (18 hours) could confound relevant biologic variance related to many underlying disease states.

ORGANISM(S): Homo sapiens

PROVIDER: GSE156989 | GEO | 2021/03/29

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Gene Expression Profiles from PBMC are Sensitive to Short Processing Delays

Project description:In the analysis of peripheral blood gene expression, timely processing of samples is essential to ensure that measurements reflect in vivo biology, rather than ex vivo sample processing variables. The effect of processing delays on global gene expression patterns in peripheral blood mononuclear cells (PBMC) was assessed by isolating and stabilizing PBMC-derived RNA from three individuals either immediately after phlebotomy or following a 4 hour delay. RNA was labeled using NuGEN Ovation labeling and probed using the Affymetrix HG U133plus 2.0 GeneChip®. Comparison of gene expression levels (p<0.05 and ≥ 2-fold expression change) identified 327 probe sets representing genes with increased expression and 46 indicating decreased expression after 4 hours. The trends in expression patterns associated with delayed processing were also apparent in an independent set of 276 arrays of RNA from human PBMC samples with varying processing times. These data indicate that the time between sample acquisition, initiation of processing, and when the RNA is stabilized should be a prime consideration when designing protocols for translational studies involving PBMC gene expression analysis. Keywords: Technical comparison

2011-03-22 | GSE21039 | GEO

Blood to plasma processing : temperature-time

Project description:This dataset contains raw mass spectrometry data (in the form of Thermo Fisher .RAW files) supporting associated publication “Variable blood processing procedures contribute to plasma proteomic variability” by Halvey et al. The experiments characterized by these data evaluated effects on plasma proteome of processing delay (from blood draw to the first centrifugation: 0, 6, 24, 48 and 72 hours) and temperature (room temperature or 4C). Sample names indicate corresponding conditions - e.g. 48h_RT = 48 hours at room temperature.

2020-07-30 | MSV000085850 | MassIVE

Gene Expression Profiles from PBMC are Sensitive to Short Processing Delays

Project description:In the analysis of peripheral blood gene expression, timely processing of samples is essential to ensure that measurements reflect in vivo biology, rather than ex vivo sample processing variables. The effect of processing delays on global gene expression patterns in peripheral blood mononuclear cells (PBMC) was assessed by isolating and stabilizing PBMC-derived RNA from three individuals either immediately after phlebotomy or following a 4 hour delay. RNA was labeled using NuGEN Ovation labeling and probed using the Affymetrix HG U133plus 2.0 GeneChip®. Comparison of gene expression levels (p<0.05 and ? 2-fold expression change) identified 327 probe sets representing genes with increased expression and 46 indicating decreased expression after 4 hours. The trends in expression patterns associated with delayed processing were also apparent in an independent set of 276 arrays of RNA from human PBMC samples with varying processing times. These data indicate that the time between sample acquisition, initiation of processing, and when the RNA is stabilized should be a prime consideration when designing protocols for translational studies involving PBMC gene expression analysis. Keywords: Technical comparison 3 subjects, 3 samples each. First sample is prepared immediately, 2nd after 2 hour delay and last after a 4 hour delay.

2011-03-22 | E-GEOD-21039 | biostudies-arrayexpress

Renal systems biology of patients with systemic inflammatory response syndrome

Project description:A systems biology approach was used to comprehensively examine the impact of renal disease and hemodialysis (HD) on host response during critical illness. We examined the metabolome, proteome, and transcriptome of 150 patients with critical illness, stratified by renal function. Plasma metabolite values showed greater changes as renal function declined, with the greatest derangements in patients receiving chronic HD. Specifically, 6 uremic retention molecules, 17 other protein catabolites, 7 modified nucleosides, and 7 pentose phosphate sugars increased as renal function declined, consistent with decreased excretion or increased catabolism of amino acids and ribonucleotides. Similarly, the proteome showed increased levels of low-molecular weight proteins and acute phase reactants. The transcriptome revealed a broad-based decrease in mRNA levels among HD patients. Systems integration revealed an unrecognized association between plasma RNASE1 and several RNA catabolites and modified nucleosides. Further, allantoin, N1-methyl-4-pyridone-3-carboxamide, and n-acetylaspartate showed inverse correlations with the majority of significantly down-regulated genes. In conclusion, renal function broadly affected the plasma metabolome, proteome, and peripheral blood transcriptome during critical illness. These changes were not effectively mitigated by hemodialysis. These studies suggest several novel mechanisms whereby renal dysfunction contributes to critical illness. We sequenced peripheral blood RNA of 133 representative subjects with systemic inflammatory response syndrome that had Acute Kidney Injury (AKI) or Hemodialysis (HD). No injury (AKI0; n= 58); AKI Stage 1 (AKI1; n= 36); AKI stage 2 and 3 (AKI23; n= 17); HD (N=22).

2015-07-01 | E-GEOD-67401 | biostudies-arrayexpress

Protein expression of PBMCs treated with ITPRIPL1

Project description:Purified human ITPRIPL1-extracellular domain (ITPRIPL1-ECD) protein or PBS was added to human peripheral blood mononuclear cells (PBMCs) as a widely used source of immune cells and treated for 18 hours under 37℃, 5% CO2 in separate 1.5 ml EP tubes (n=3 independent samples for each condition)

2024-03-10 | PXD050518 | iProX

The Extracellular RNA Quality Control (exRNAQC) study: Small RNA sequencing of blood collection tube study (exRNAQC013)

Project description:To evaluate the impact of blood collection tubes on extracellular RNA (exRNA) sequencing, 10 different blood collection tubes were compared by applying Small RNA sequencing (Illumina) to exRNA from human healthy donor plasma or serum. Three time spans between blood draw and downstream processing were evaluated for each of the tubes. Preservation tubes were processed immediately upon blood collection (T0), after 24 hours (T24), or after 72 hours (T72). Non-preservation plasma and serum tubes were processed immediately upon blood collection (T0), after 4 hours (T4), or after 16 hours (T16). Due to donor privacy concerns the raw data for this study have been submitted to the controlled-access archive EGA under the accession EGAS00001005263.

2021-06-10 | E-MTAB-10506 | biostudies-arrayexpress

The Extracellular RNA Quality Control (exRNAQC) study: RNA Exome sequencing of blood collection tube study (exRNAQC005)

Project description:To evaluate the impact of blood collection tubes on extracellular RNA (exRNA) sequencing, 10 different blood collection tubes were compared by applying RNA Exome sequencing (Illumina) to exRNA from human healthy donor plasma or serum. Three time spans between blood draw and downstream processing were evaluated for each of the tubes. Preservation tubes were processed immediately upon blood collection (T0), after 24 hours (T24), or after 72 hours (T72). Non-preservation plasma and serum tubes were processed immediately upon blood collection (T0), after 4 hours (T4), or after 16 hours (T16). Due to donor privacy concerns the raw data for this study have been submitted to the controlled-access archive EGA under the accession EGAS00001005263.

2021-06-10 | E-MTAB-10507 | biostudies-arrayexpress

Primary Human B-cell Temporal Response to CD40L Stimulation

Project description:RNAseq was used to identify primary human B-cell responses to CD40L stimulation. Primary human peripheral blood B-cells were isolated by negative selection and then subjected to 0, 1 or 18 hours of mega-CD40L stimulation at 50 ng/ml.

2019-07-17 | GSE132835 | GEO

The Extracellular RNA Quality Control (exRNAQC) study: RNA Exome sequencing of interaction study (exRNAQC017)

Project description:Study to detect possible interactions between blood collection tubes and RNA purification methods on extracellular RNA (exRNA) sequencing. Different combinations of blood collection tubes (3 in total), time intervals between blood draw and downstream processing (immediate (T0), after 4 hours (T4), after 16 hours (T16)), and RNA purification kits (2 in total) were evaluated by applying mRNA capture sequencing (Illumina) to exRNA from human healthy donor plasma or serum.

2022-12-25 | E-MTAB-12541 | biostudies-arrayexpress

The Extracellular RNA Quality Control (exRNAQC) study: Small RNA sequencing of interaction study (exRNAQC017)

Project description:Study to detect possible interactions between blood collection tubes and RNA purification methods on extracellular RNA (exRNA) sequencing. Different combinations of blood collection tubes (3 in total), time intervals between blood draw and downstream processing (immediate (T0), after 4 hours (T4), after 16 hours (T16)), and RNA purification kits (2 in total) were evaluated by applying Small RNA sequencing (Illumina) to exRNA from human healthy donor plasma or serum.

2022-12-25 | E-MTAB-12542 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data