PXD050589 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | Proteomic Profiling of Cerebrospinal Fluid and its EVs from Extraventricular Drainage in Pediatric Pilocytic Astrocytoma, Towards Precision Oncology |
Description | Pediatric pilocytic astrocytoma (PA) is the most common brain tumor in children. Complete resection provides a good prognosis, except for unresectable PA forms. There is an incomplete understanding of the molecular and cellular pathogenesis of PA. Potential biomarkers for PA patients, especially the non-BRAF-mutated ones are needed. Cerebrospinal fluid (CSF) is a valuable source of brain tumor biomarkers. Extracellular vesicles express valuable disease targets. These can be isolated from CSF from waste extraventricular drainage (EVD). We analyzed the proteome of EVD CSF from 24 PA, cerebral hemorrhage (CH, non-tumor controls), or medulloblastoma (MB, unrelated tumoral controls) patients. 3072 proteins were identified, 47.1%, 65.6%, and 86.2% of which expressed in the unprocessed total, and its microvesicle (Mv), and exosome (Ex) fractions. Bioinformatics identified 50 statistically significant proteins in the comparison between PA and HC, and PA and MB patients, in the same fractions. Kinase enrichment analysis predicted five enriched kinases involved in signaling. Among these, only Cyclin-dependent kinase 2 (CDK2) kinase was overexpressed in PA samples. PLS-DA highlighted inactive carboxypeptidase-like protein X2 (CPXM2) and aquaporin-4 (AQP4) as statistically significant in all the comparisons, with CPXM2 being overexpressed (validated by ELISA and Western Blot) and AQP4 downregulated in PA. These proteins were considered the most promising potential biomarkers to discriminate among pilocytic astrocytoma, and unrelated tumoral (MB) or non-tumoral conditions, in all the fractions examined, proposed to be prospectively validated in the plasma for translational medicine applications. |
HostingRepository | PRIDE |
AnnounceDate | 2024-10-22 |
AnnouncementXML | Submission_2024-10-22_06:45:08.510.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Martina Bartolucci |
SpeciesList | scientific name: Homo sapiens (Human); NCBI TaxID: 9606; |
ModificationList | acetylated residue; monohydroxylated residue; deamidated residue; iodoacetamide derivatized residue |
Instrument | Orbitrap Fusion |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2024-03-13 08:01:41 | ID requested | |
1 | 2024-06-15 22:56:31 | announced | |
⏵ 2 | 2024-10-22 06:45:09 | announced | 2024-10-22: Updated project metadata. |
Publication List
Spinelli S, Kajana X, Garbarino A, Bartolucci M, Petretto A, Pavanello M, Verrina E, Candiano G, Panfoli I, Bruschi M, Proteomic Profiling of Cerebrospinal Fluid and Its Extracellular Vesicles from Extraventricular Drainage in Pediatric Pilocytic Astrocytoma, towards Precision Oncology. Cancers (Basel), 16(6):(2024) [pubmed] |
10.3390/cancers16061223; |
Keyword List
submitter keyword: Cerebrospinal fluid |
extraventricular drainage |
extracellular vesicles |
exosome |
microvesicle |
Proteomics |
pilocytic astrocytoma |
Contact List
Andrea Petretto |
contact affiliation | IRCCS Istituto G Gaslini |
contact email | a.petretto@gmail.com |
lab head | |
Martina Bartolucci |
contact affiliation | IRCCS Gaslini |
contact email | smartibartolucci@gmail.com |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD050589
- Label: PRIDE project
- Name: Proteomic Profiling of Cerebrospinal Fluid and its EVs from Extraventricular Drainage in Pediatric Pilocytic Astrocytoma, Towards Precision Oncology