PXD067612-1

PXD067612 is an original dataset announced via ProteomeXchange.

Title	Extracellular vesicles derived from induced pluripotent stem cells mediate anti-inflammatory effects in human primary macrophage. Macrophage dataset.
Description	Extracellular vesicles derived from induced pluripotent stem cells (iPSC EVs) have immunoregulatory potential with the ability to alter monocyte-derived macrophages. Macrophages function in the propagation and resolution of inflammation which is mediated by their phenotype. Macrophages are an ideal therapeutic target as modulating their phenotype towards an anti-inflammatory pro-resolving state may be beneficial in chronic inflammatory diseases such as atherosclerosis. Macrophages are naturally phagocytotic cells and readily take up iPSC EVs however the contents of iPSC EVs and their effects on macrophages are poorly understood. Here iPSC EVs were characterized and analysed by mass-spectrometry based proteomics and a targeted microRNA (miR) panel. Their immunomodulatory effects on macrophages were assessed and a monocyte transmigration assay was used to assess the chemotactic potency of the secretome from iPSC EV treated macrophages. Proteomic analysis on iPSC EVs identified Podocalyxin-like protein 1 (PODXL1), Insulin (INS) and Solute Carrier Family 2 (Facilitated Glucose Transporter), Member 3 (SLC2A3) as the most abundant proteins unique to the iPSC EVs when compared to control NT-2 EVs. Notably, thioredoxin and peroxiredoxin related proteins were detected. miR-302d-3p was the most abundant miR in these iPSC EVs. miR-25-3p, previously reported to alter the macrophage phenotype, was significantly increased in comparison to the control NT-2 EVs. iPSC EVs increased expression of the anti-inflammatory associated MRC1 and miR-21 in human primary macrophages and decreased monocyte chemoattractant protein1 (MCP-1). Mass spectrometry based proteomics revealed that treated macrophages had decreased levels of secretory proteins, some of which have chemotactic properties, these included Azurocidin 1 (AZU1), Growth Differentiation Factor 15 (GDF15), and Ribosomal Protein S19 (RPS19). There was a decrease in monocyte transmigration towards conditioned media from macrophages treated with iPSC EVs. Collectively this study provides insights into the protein content and miR cargo of iPSC EVs and highlights their capacity to inhibit chemotactic proteins in macrophages and upregulate MRC1.
HostingRepository	PRIDE
AnnounceDate	2025-09-08
AnnouncementXML	Submission_2025-09-08_05:12:15.711.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Eugene Dillon
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	acetylated residue; monohydroxylated residue; iodoacetamide derivatized residue
Instrument	timsTOF Pro

Revision	Datetime	Status	ChangeLog Entry
0	2025-08-22 09:22:53	ID requested
⏵ 1	2025-09-08 05:12:16	announced

Dataset with its publication pending

submitter keyword: iPSCs, inflammation, macrophages,Extracellular vesicles, monocytes

Stephen Fitzsimons
contact affiliation	School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
contact email	stephen.fitzsimons1@ucd.ie
lab head
Eugene Dillon
contact affiliation	UCD
contact email	eugene.dillon@ucd.ie
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD067612
     1. Label: PRIDE project
     2. Name: Extracellular vesicles derived from induced pluripotent stem cells mediate anti-inflammatory effects in human primary macrophage. Macrophage dataset.