PXD048498-1

PXD048498 is an original dataset announced via ProteomeXchange.

Title	Proteomic profiling of extracellular vesicle in A549 cells under oxidative stress
Description	Exosomes from cancer cells are versatile mediators of cell-to-cell communication, whose cargoes are dynamically loaded in response to various stress conditions. In this study, we demonstrate that under oxidative stress, cancer cells secrete exosomes that induce apoptosis in neighboring cells via the Arg/N-degron pathway. In this mechanism, RILP (Rab interacting lysosomal protein) is cleaved at Asp75 in response to oxidative stress which requires ATE1 R-transferase. The cleaved form of RILP recruits the ESCRT-II proteins VPS22 and VPS36 to endosomes from which the interluminal vesicles are invaginated generating exosomes. By using proteomics analyses, we also demonstrate exosomes secreted from cancer cells upon oxidative stress are enriched apoptotic proteins including pro-apoptotic and anti-inflammatory cytokine ANXA1. These exosomes induce apoptosis of normal cancer cells transporting ANXA1 in an Arg/N-degron pathway-dependent manner. Our results show that the Arg/N-degron pathway modulates exosome-mediated apoptosis in cancer cells under oxidative stress underlying RILP-dependent secretion of ANXA1.
HostingRepository	PRIDE
AnnounceDate	2025-04-16
AnnouncementXML	Submission_2025-04-15_23:03:06.557.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Dohyun Han
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	monohydroxylated residue; iodoacetamide derivatized residue
Instrument	Q Exactive Plus

Revision	Datetime	Status	ChangeLog Entry
0	2024-01-12 01:31:11	ID requested
⏵ 1	2025-04-15 23:03:06	announced

Dataset with its publication pending

submitter keyword: A549, oxidative stress,exosome

Dohyun Han
contact affiliation	Proteomics core facility, Biomedical Research Institute, Seoul National University Hospital
contact email	hdh03@snu.ac.kr
lab head
Dohyun Han
contact affiliation	Proteomics Core Facility, Biomedical Research Institute, Seoul National University Hospital
contact email	hdh03@snu.ac.kr
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD048498
     1. Label: PRIDE project
     2. Name: Proteomic profiling of extracellular vesicle in A549 cells under oxidative stress