Data · dataset · 2026
Dataset: Poseidon Data ccRCC Application
Listed in Bicocca Open Archive Research Data
This repository contains MALDI mass spectrometry imaging (MALDI-MSI) data acquired from a clear cell renal cell carcinoma (ccRCC) tissue section.
Description
The dataset comprises spatially resolved mass spectra of lipids, N-glycans, and tryptic peptides obtained from the same tissue section using a multi-omics imaging workflow. These complementary molecular layers enable the characterization of distinct histological regions, including healthy renal cortex, renal capsule, and tumor tissue.
In particular: FinalMatrix_Coor.RDS contains pixel coordinates. FinalMatrix_Coor_reverseX.RDS contains the same coordinates flipped along the x-axis to match the orientation of the H&E-stained tissue image. FinalMatrix_Lipids.RDS, FinalMatrix_Glycans.RDS, and FinalMatrix_Peptides.RDS contain transformed molecular abundances for each pixel.
Read the rest (2 more)
Each row corresponds to a pixel and each column to an m/z value. list_ind_resolution_4123.RDS and list_ind_resolution_4123_cpp.RDS contain the indices of neighboring pixels for each pixel. The former uses 1-based indexing, whereas the latter uses 0-based indexing. These data were analyzed in the study “Multiomics Tissue Segmentation via Spatially-Informed Nested Biclustering Methods” by Francesco Denti, Cecilia Balocchi, Vanna Denti, and Giulia Capitoli, published in Biometrics.
Preprint: fradenti.github.io/pdf/Poseidon.pdf Analysis code: github.com/Fradenti/poseidon-maldi
Links
Where it is published
- DOI doi.org/10.17632/gxz9kjj2r9.1 ↗
DOI / persistent id · from board unimib it
Catalogue records · 1
- OAI-PMH record board.unimib.it/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Aboar… ↗
metadata API · from board unimib it
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Mass spectrometry · Social Science
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| Bicocca Open Archive Research Data | oai:board.unimib.it/gxz9kjj2r9.1 | 5 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · board unimib it | connector:board_unimib_it@1.0.0 | |
| concepts[disease].local:disease:cancer | enrichment · board unimib it | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[field].local:field:earth-environmental | mapping · board unimib it | connector:board_unimib_it@1.0.0 | |
| concepts[field].local:field:engineering | mapping · board unimib it | connector:board_unimib_it@1.0.0 | |
| concepts[field].local:field:humanities | mapping · board unimib it | connector:board_unimib_it@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · board unimib it | connector:board_unimib_it@1.0.0 | |
| concepts[field].local:field:social-science | mapping · board unimib it | connector:board_unimib_it@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · board unimib it | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:imaging | enrichment · board unimib it | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:mass-spectrometry | mapping · board unimib it | vocabulary-mapper@1.0.0 | keywords['Mass Spectrometry'] |
| description | source · board unimib it | connector:board_unimib_it@1.0.0 | /metadata/dc/description |
| license | source · board unimib it | connector:board_unimib_it@1.0.0 | /metadata/dc/rights |
| publication_date | source · board unimib it | connector:board_unimib_it@1.0.0 | |
| title | source · board unimib it | connector:board_unimib_it@1.0.0 | /metadata/dc/title |