⮝ Full datasets listing

PXD050589

PXD050589 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleProteomic Profiling of Cerebrospinal Fluid and its EVs from Extraventricular Drainage in Pediatric Pilocytic Astrocytoma, Towards Precision Oncology
DescriptionPediatric 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.
HostingRepositoryPRIDE
AnnounceDate2024-10-22
AnnouncementXMLSubmission_2024-10-22_06:45:08.510.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterMartina Bartolucci
SpeciesList scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationListacetylated residue; monohydroxylated residue; deamidated residue; iodoacetamide derivatized residue
InstrumentOrbitrap Fusion
Dataset History
RevisionDatetimeStatusChangeLog Entry
02024-03-13 08:01:41ID requested
12024-06-15 22:56:31announced
22024-10-22 06:45:09announced2024-10-22: 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 affiliationIRCCS Istituto G Gaslini
contact emaila.petretto@gmail.com
lab head
Martina Bartolucci
contact affiliationIRCCS Gaslini
contact emailsmartibartolucci@gmail.com
dataset submitter
Full Dataset Link List
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/2024/05/PXD050589
PRIDE project URI
Repository Record List
[ + ]