PXD019266-1

PXD019266 is an original dataset announced via ProteomeXchange.

Title	Proteomics of vascularized cardiac organoids
Description	Crosstalk between cardiac cells is critical during heart development but its role in organ maturation is still largely uncharacterised. Here, we show that endothelial cells increas the force of contraction and enhance the expression of mature sarcomeric proteins and extracellular matrix (ECM) components in human pluripotent stem cell derived cardiac organoids (hCO). Endothelial cells regulate cardiac maturation and function both directly through secretion of ECM molecules and indirectly via paracrine signaling. Laminin α5, an endothelial enriched ECM protein, was identified as a key regulator of cardiac maturation and contractility in vitro. In vivo loss-of-function studies in mice confirmed that Lama5 was required for myocardial expansion during heart development in vivo. In addition, paracrine PDGF signaling was identified as a mediator of increased ECM deposition and cardiac contractility in hCO. This study uncovers matrix regulatory functions of endothelial cells governing cardiac maturation and highlights the importance of multicellularity for organoid models.
HostingRepository	PRIDE
AnnounceDate	2025-11-06
AnnouncementXML	Submission_2025-11-06_07:10:24.002.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Benjamin Parker
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: NEWT:9606;
ModificationList	monohydroxylated residue; iodoacetamide derivatized residue
Instrument	Orbitrap Eclipse

Revision	Datetime	Status	ChangeLog Entry
0	2020-05-18 16:54:26	ID requested
⏵ 1	2025-11-06 07:10:24	announced

Voges HK, Foster SR, Reynolds L, Parker BL, Devil, é, e L, Quaife-Ryan GA, Fortuna PRJ, Mathieson E, Fitzsimmons R, Lor M, Batho C, Reid J, Pocock M, Friedman CE, Mizikovsky D, Francois M, Palpant NJ, Needham EJ, Peralta M, Monte-Nieto GD, Jones LK, Smyth IM, Mehdiabadi NR, Bolk F, Janbandhu V, Yao E, Harvey RP, Chong JJH, Elliott DA, Stanley EG, Wiszniak S, Schwarz Q, James DE, Mills RJ, Porrello ER, Hudson JE, Vascular cells improve functionality of human cardiac organoids. Cell Rep, 42(5):112322(2023) [pubmed]

10.1016/j.celrep.2023.112322;

submitter keyword: cardioac organoids, endothelial cells

Benjamin Parker
contact affiliation	The University of Melbourne
contact email	ben.parker@unimelb.edu.au
lab head
Benjamin Parker
contact affiliation	The University of Melbourne
contact email	ben.parker@unimelb.edu.au
dataset submitter

Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2025/11/PXD019266

PRIDE project URI

• PRIDE
  1. PXD019266
     1. Label: PRIDE project
     2. Name: Proteomics of vascularized cardiac organoids