PXD053079 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | Deep Visual Proteomics reveals DNA replication stress as a hallmark of Signet Ring Cell Carcinoma |
Description | Background and Aims: Signet-Ring (SR) cell carcinoma (SRCC) is an increasingly prevalent form of gastric cancer, known for its late presentation and poor treatment outcomes. Using our spatial proteomics pipeline, Deep Visual Proteomics (DVP), we aimed to comprehensively explore the SRCC proteome landscape in a single patient to uncover unknown disease mechanisms that could be individually targeted for therapeutic purposes. Methods: We applied DVP, which combines image-based artificial intelligence with automated microdissection and ultra-high sensitivity mass spectrometry, to SR cell-positive tissues from the bladder, seminal vesicle, lymph node, and prostate within a single patient. Results: DVP allowed us to perform in-depth spatial proteome analysis of SRCC presenting in different organs of a single patient. We identified alternations in DNA damage response (DDR) pathways, particularly in the pathways associated with ataxia-telangiectasia mutant (ATR) and DNA mismatch repair (MMR), suggesting replication stress as the leading factor of SRCC mutagenicity. Additionally, we identified an enrichment of immune-related proteins and could observe infiltration of cytotoxic T lymphocytes. Conclusion: Analyzing the SRCC proteome across different organs within a single patient allowed us to confirm known disease patterns and identify novel biological mechanisms contributing to SRCC aggressiveness. Our data provided insights into why chemotherapy was unsuccessful and explained the significant life extension and improved quality of life following PD-1 inhibitor treatment, which led to tumor stasis. |
HostingRepository | PRIDE |
AnnounceDate | 2025-05-07 |
AnnouncementXML | Submission_2025-05-06_19:41:26.283.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Mario Oroshi |
SpeciesList | scientific name: Homo sapiens (Human); NCBI TaxID: 9606; |
ModificationList | No PTMs are included in the dataset |
Instrument | Orbitrap Astral |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2024-06-13 07:00:10 | ID requested | |
⏵ 1 | 2025-05-06 19:41:27 | announced | |
Publication List
Kabatnik S, Zheng X, Pappas G, Steigerwald S, Padula MP, Mann M, Deep visual proteomics reveals DNA replication stress as a hallmark of signet ring cell carcinoma. NPJ Precis Oncol, 9(1):37(2025) [pubmed] |
10.1038/s41698-025-00819-7; |
Keyword List
submitter keyword: Deep Visual Proteomics, Signet Ring Cell Carcinoma, Precision oncology, Spatial Proteomics, Mass Spectrometry, Pathology, Cancer, Case study |
Contact List
Matthias Mann |
contact affiliation | Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried, Germany. NNF Center for Protein Research, Faculty of Health Science, University of Copenhagen, Copenhagen, Denmark. |
contact email | mmann@biochem.mpg.de |
lab head | |
Mario Oroshi |
contact affiliation | Proteomics |
contact email | oroshi@biochem.mpg.de |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD053079
- Label: PRIDE project
- Name: Deep Visual Proteomics reveals DNA replication stress as a hallmark of Signet Ring Cell Carcinoma