Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

GNPS - Exosomes Released from Senescent Cells and Isolated from Human Plasma Reveal Aging-associated Proteomic Signatures

ABSTRACT: Senescence emerged as a significant mechanism of aging and age-related diseases, offering an attractive target for clinical intervention. Senescent cells release senescence-associated secretory phenotype (SASP), including exosomes that may act as signal transducers between distal tissues, propagating secondary senescence and signaling throughout the body. However, the composition of exosome SASP remains underexplored, presenting an opportunity for novel unbiased discovery. Here, we present a detailed lipidomic analysis of exosome SASP using mass spectrometry from senescent primary human lung fibroblasts and human plasma from young and older individuals.

INSTRUMENT(S): 6560 Q-TOF LC/MS

ORGANISM(S): Homo Sapiens (ncbitaxon:9606)

SUBMITTER: Erin Baker

PROVIDER: MSV000094326 | GNPS | Fri Mar 15 06:28:00 GMT 2024

REPOSITORIES: GNPS

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Exosomes Released from Senescent Cells and Isolated from Human Plasma Reveal Aging-associated Proteomic Signatures

Project description:Senescence emerged as a significant mechanism of aging and age-related diseases, offering an attractive target for clinical intervention. Senescent cells release senescence-associated secretory phenotype (SASP), including exosomes that may act as signal transducers between distal tissues, propagating secondary senescence and signaling throughout the body. However, the composition of exosome SASP remains underexplored, presenting an opportunity for novel unbiased discovery. Here, we present a detailed lipidomic analysis of exosome SASP using mass spectrometry from senescent primary human lung fibroblasts and human plasma from young and older individuals.

2024-03-15 | MSV000094326 | MassIVE

The effect of aging on the transcriptome of murine dermal fibroblasts isolated from male mice

Project description:During aging, stromal functions are thought to be impaired, yet little is known whether this stems from molecular and cellular changes of fibroblasts, a major component of stroma. Using population- and single-cell whole transcriptomics, and long-term lineage tracing, we studied alterations in murine dermal fibroblasts during physiological aging under different dietary regimes known to affect longevity. We show that the identity of aged fibroblasts becomes undefined, with the distinct fibroblast states present in young skin no longer clearly demarcated. In addition, old fibroblasts not only reduce the expression of genes involved in the formation of the extracellular matrix, but intriguingly, also gain adipogenic traits, paradoxically becoming similar to neonatal pro-adipogenic fibroblasts. These age-related alterations are sensitive to systemic changes in metabolism: long-term caloric restriction prevents them in old fibroblasts in a reversible manner, whereas a high-fat diet potentiates them in young fibroblasts. Finally, inhibition of the master regulator of adipogenesis, PPARgamma, attenuates fibroblast aging in vivo, providing potential anti-aging therapeutic alternatives to caloric restriction.

2018-11-14 | GSE117762 | GEO

miRNA expression in aging skin

Project description:Fibroblasts were isolated from healthy skin, donors were young, middlege and old. We used Affymetrix miRNA microarrays to detail the global expression of miRNAs. Primary fibroblasts were isolated from healthy skin, donnors were young, middlege and old and kept in culture for a short time in order to avoid scenescence.

2014-02-25 | E-GEOD-55299 | biostudies-arrayexpress

miRNA expression in aging skin

Project description:Fibroblasts were isolated from healthy skin, donors were young, middlege and old. We used Affymetrix miRNA microarrays to detail the global expression of miRNAs.

2014-02-25 | GSE55299 | GEO

Transcriptome analysis of fibroblast subpopulations isolated from neonatal murine dermis.

2018-11-14 | GSE110979 | GEO

Regionalized cell and gene signatures govern oesophageal epithelial homeostasis.

Project description:Regionalized disease prevalence is a common feature of the gastrointestinal tract. Herein, we employed regionally resolved Smart-seq3 single-cell sequencing, generating a comprehensive cell atlas of the adult oesophagus. Characterizing the oesophageal axis, we unveil non-uniform distribution of epithelial basal cells, fibroblasts and immune cells. In addition, we reveal a position-dependent, but cell subpopulation-independent, transcriptional signature, collectively generating a regionalized landscape. Combining in vivo models with organoid co-cultures, we demonstrate that proximal and distal basal progenitor cell states are functionally distinct. We find that proximal fibroblasts are more permissive for organoid growth compared to distal fibroblasts and that the immune cell profile is regionalized in two dimensions, where proximal-distal and epithelial-stromal gradients impact epithelial maintenance. Finally, we predict and verify how WNT-, BMP-, IGF- and NRG-signalling are differentially engaged along the oesophageal axis. We establish a cellular and transcriptional framework for understanding oesophageal regionalization, providing a functional basis for epithelial disease susceptibility.

2024-02-22 | GSE254855 | GEO

Single-cell transcriptomes of the aging human skin reveal loss of fibroblast priming

Project description:Fibroblasts are the main dermal cell type and are essential for the architecture and function of human skin. Important differences have been described between fibroblasts localized in distinct dermal layers, and these cells are also known to perform varied functions. However, this phenomenon has not been analyzed comprehensively yet. Here we have used single-cell RNA sequencing to analyze >15,000 cells from a sun-protected area in young and old donors. Our results define four main fibroblast subpopulations that can be spatially localized and functionally distinguished. Importantly, intrinsic aging reduces this fibroblast ‘priming’, generates distinct expression patterns of skin aging-associated genes, and substantially reduces the interactions of dermal fibroblasts with other skin cell types. Our work thus provides comprehensive evidence for a functional specialization of human dermal fibroblasts and suggests that the age-related loss of fibroblast priming contributes to human skin aging.

2020-03-31 | GSE130973 | GEO

The effect of aging on the transcriptome of murine dermal fibroblasts

2018-11-14 | GSE110978 | GEO

The effect of caloric restriction on the transcriptome of dermal fibroblasts during aging

2018-11-14 | GSE110982 | GEO

Direct reprogramming of fibroblasts identifies signatures of vascular dysfunction in physiological aging and Hutchinson-Gilford Progeria Syndrome

Project description:Our goal was to identify gene expression and functional differences between directly reprogrammed vascular cells derived from young and old individuals, as wells as from healthy and Hutchinson-Gilford Progeria Syndrome (HGPS) donors. We provided a full characterization of reprogrammed endothelial and smooth muscle cells by comparing their gene expression with both the original fibroblasts and primary vascular cells, showing that reprogrammed cells express key vascular cell-identity genes and contribute to the formation of in vitro 3D vascular structures. We identified and validated biomarkers of vascular dysfunction in the context of physiological and accelerated aging typical of HGPS patients, and we demonstrated their direct contribution in the modulation of vascular permeability.

2020-09-03 | GSE140898 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

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