Project description:This study used SomaScan v 4.1 to profile>7000 proteins in maternal plasma and asses changes with gestational age and maternal characteristics. The study proposed models to estimate the expected protein abundance so that future datasets can be normalized agains these expected value to obtain Multiples of the Mean values.

2022-09-26 | GSE206454 | GEO

Plasma Proteome Pilot in KOREF

Project description:This study used SomaScan v 4.1 to profile>7000 proteins in human plasma KOREF1.

2025-11-25 | GSE310463 | GEO

Evaluating the utility of proteomics for the identification of circulating pharmacodynamic biomarkers of IFNβ-1 biologics

Project description:In this study, we evaluated the utility of proteomics to identify plasma proteins in healthy participants from a phase I clinical trial with IFNβ-1a and pegIFNβ-1a biologics to identify potential pharmacodynamic (PD) biomarkers. Using a linear mixed-effects model with repeated measurement for product-time interaction, we found that 248 and 528 analytes detected by the SOMAscan® assay were differentially expressed (p-value < 6.86E-06) between therapeutic doses of IFNβ-1a or pegIFNβ-1a, and placebo, respectively. We further prioritized signals based on peak change, area under the effect curve over the study duration, and overlap in signals from the two products. Analysis of prioritized datasets indicated activation of IFNB1 signaling and an IFNB signaling node with IL-6 as upstream regulators of the plasma protein patterns from both products. Increased TNF, IL-1B, IFNG, and IFNA signaling also occurred early in response to each product suggesting a direct link between each product and these upstream regulators. In summary, we identified longitudinal global PD changes in a large array of new and previously reported circulating proteins in healthy participants treated with IFNβ-1a and pegIFNβ-1a that may help identify novel single proteomic PD biomarkers and/or composite PD biomarker signatures as well as provide insight into the mechanism of action of these products. Independent replication is needed to confirm present proteomic results and to support further investigation of the identified candidate PD biomarkers for biosimilar product development.

2023-10-31 | GSE207945 | GEO

COVID-19 drives a distinct plasma proteome in pregnant and non-pregnant individuals

Project description:This study used SomaScan v 4.1 to profile>7000 proteins in human plasma and assess changes with Sars-Cov-2 infection and with Covid-19 disease severity in pregnant and non-pregnant individuals.

2023-03-03 | GSE207015 | GEO

COVIDomics_plasma_2020_DDA-PASEF

Project description:In order to investigate variations in the endotype of COVID19 patients, we completed an integrated analysis of 112 research participants, including 74 COVID19 patients versus 37 SARS-CoV-2 negative controls. COVID19 patients tested positive for SARS-CoV-2 infection by PCR and/or antibody testing and were hospitalized due to COVID19 symptoms, but none of them had developed severe pathology requiring ICU admission at the time of blood collection. The control group was recruited from the same hospital system but tested negative for SARS-CoV-2 infection. Research blood draws were obtained from consented participants and analyzed by matched SARS-CoV-2 seroconversion assays, plasma proteomics using two alternative platforms [mass-spectrometry (MS), and SOMAscan assays], 82-plex cytokine profiling using Meso Scale Discovery (MSD) assays, and immune cell profiling via mass cytometry (MC).

2021-03-04 | PXD022817 | Pride

APOE genotype or brain amyloid alters the plasma proteome in elderly subjects without dementia

Project description:Recent work has bolstered the possibility that peripheral changes may be relevant to Alzheimer’s disease pathogenesis in the brain. While age-associated blood-borne proteins have been targeted to restore function to the aged brain, it remains unclear whether other dysfunctional systemic states can be exploited for similar benefits. Here we investigate whether APOE allelic variation or presence of brain amyloid are associated with plasma proteomic changes and the molecular processes associated with these changes. Using the SOMAscan assay, we measured 1,305 plasma proteins from 53 homozygous, APOE3 and APOE4 subjects without dementia. We investigated the relationship of either the APOE-ε4 allele or amyloid positivity with plasma proteome changes by linear mixed effects modeling and ontology-based pathway and module trait correlation analyses. APOE4 is associated with plasma protein differences linked to atherosclerosis, tyrosine kinase activity, cholesterol transport, extracellular matrix, and synaptogenesis pathways. Independent of APOE4, we found that subjects likely harboring brain amyloid exhibit plasma proteome signatures associated with AD-linked pathways, including neurovascular dysfunction. Our results indicate that APOE4 status or presence of brain amyloid are associated with plasma proteomic shifts prior to the onset of symptoms, suggesting that systemic pathways in certain risk contexts may be plausible targets for disease modification.

2025-02-19 | GSE275392 | GEO

Comparison of pairwise venous and fingertip plasma using quantitative proteomics based on DIA

Project description:This project contains the proteome datasets generated from the fingertip and venous plasma samples of healthy volunteers

2023-02-08 | PXD039952 |