PXD055042-2

PXD055042 is an original dataset announced via ProteomeXchange.

Title	TCR-engineered T-cells directed against Ropporin-1 constitute a safe and effective treatment for triple-negative breast cancer in near-clinical models
Description	Triple-negative breast cancer (TNBC) shows an urgent need for new therapies. We discovered Ropporin-1 (ROPN1) as a target to treat TNBC with T-cells. ROPN1 showed high and homogenous expression in 90% of primary and metastatic TNBC but not in healthy tissues. HLA-A2-binding peptides were detected via immunopeptidomics and predictions and used to retrieve T-cell receptors (TCRs) from naïve repertoires. Following gene introduction into T-cells and stringent selection, we retrieved a highly specific TCR directed against the epitope FLYTYIAKV that did not recognize non-cognate epitopes from alternative source proteins. Notably, this TCR mediated killing of three-dimensional tumoroids in vitro and tumor cells in vivo and outperformed standard-of-care drugs. Finally, the T-cell product expressing this TCR and manufactured using a clinical protocol fulfilled standard safety and efficacy assays. Collectively, we have identified and preclinically validated ROPN1 as a target and anti-ROPN1 TCR T-cells as a treatment for the vast majority of TNBC patients.
HostingRepository	PRIDE
AnnounceDate	2024-10-22
AnnouncementXML	Submission_2024-10-22_06:57:32.921.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Michal Bassani-Sternberg
SpeciesList	scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	monohydroxylated residue
Instrument	Q Exactive HF

Revision	Datetime	Status	ChangeLog Entry
0	2024-08-22 06:04:42	ID requested
1	2024-08-30 06:13:11	announced
⏵ 2	2024-10-22 06:57:33	announced	2024-10-22: Updated project metadata.

Dataset with its publication pending

ProteomeXchange project tag: Biology/Disease-Driven Human Proteome Project (B/D-HPP)

submitter keyword: Immunopeptidomics, Ropporin-1

Michal Bassani-Sternberg
contact affiliation	Department of oncology UNIL CHUV Ludwig Institute for Cancer Research Lausanne Office B25A/04/94 Rue du Bugnon 25a, CH-1005 Lausanne
contact email	michal.bassani@chuv.ch
lab head
Michal Bassani-Sternberg
contact affiliation	UNIL/CHUV
contact email	michal.bassani@chuv.ch
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/2024/08/PXD055042

PRIDE project URI

• PRIDE
  1. PXD055042
     1. Label: PRIDE project
     2. Name: TCR-engineered T-cells directed against Ropporin-1 constitute a safe and effective treatment for triple-negative breast cancer in near-clinical models