PXD022411 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | Central nervous system involvement of acute lymphoblastic leukemia depends on mRNA translation and complement component 3 |
Description | Central nervous system (CNS) dissemination of B-precursor acute lymphoblastic leukemia (B-ALL) has a poor prognosis and remains a therapeutic challenge with few recent advances in therapy. Leptomeningeal disease is particularly common in the high risk subgroup of KMT2A-rearranged B-ALL (KMT2A-r B-ALL). Here we performed transcriptional and proteomic profiling of leukemia cells from bone marrow (BM) and CNS-disseminated disease in KMT2A-r B-ALL xenografts. CNS disease exhibited stemness traits and metabolic reprogramming previously associated with chemotherapy resistance. Genes governing mRNA translation were upregulated in CNS samples, a finding confirmed in cohorts of KMT2A-r B-ALL patients with CNS involvement. This upregulation was functionally important for CNS disease as the mRNA translational inhibitor omacetaxine mepesuccinate (OMA) significantly reduced leptomeningeal disease burden in xenografts. Proteomic analysis demonstrated greater abundance of secreted proteins in CNS infiltrating cells including complement component 3 (C3), a known driver of leptomeningeal metastasis in solid tumours, pointing to a convergent mechanism for this route of metastasis in multiple cancers. Pharmacological inhibition of C3a signaling suppressed CNS dissemination, whereas C3a receptor activation increased CNS disease. Overall, our study identifies mRNA translation and a set of secreted proteins as key mediators of CNS dissemination in KMT2A-r B-ALL. Therapeutic targeting of these dependencies represents a novel approach to prevent or treat leptomeningeal disease. |
HostingRepository | PRIDE |
AnnounceDate | 2023-11-14 |
AnnouncementXML | Submission_2023-11-14_08:35:59.432.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Erwin Schoof |
SpeciesList | scientific name: Homo sapiens (Human); NCBI TaxID: 9606; |
ModificationList | acetylated residue; monohydroxylated residue |
Instrument | Orbitrap Fusion |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2020-11-06 08:30:38 | ID requested | |
1 | 2023-03-10 19:40:30 | announced | |
⏵ 2 | 2023-11-14 08:36:00 | announced | 2023-11-14: Updated project metadata. |
Publication List
Vanner RJ, Dobson SM, Gan OI, McLeod J, Schoof EM, Grandal I, Wintersinger JA, Garcia-Prat L, Hosseini M, Xie SZ, Jin L, Mbong N, Voisin V, Chan-Seng-Yue M, Kennedy JA, Waanders E, Morris Q, Porse B, Chan SM, Guidos CJ, Danska JS, Minden MD, Mullighan CG, Dick JE, Multiomic Profiling of Central Nervous System Leukemia Identifies mRNA Translation as a Therapeutic Target. Blood Cancer Discov, 3(1):16-31(2022) [pubmed] |
Keyword List
submitter keyword: LC-MS, leukemia, LFQ |
Contact List
John Dick |
contact affiliation | Princess Margaret Cancer Centre, University Health Network, M5G 1L7, Toronto, Canada |
contact email | jdick@uhnres.utoronto.ca |
lab head | |
Erwin Schoof |
contact affiliation | Technical University of Denmark |
contact email | erws@dtu.dk |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD022411
- Label: PRIDE project
- Name: Central nervous system involvement of acute lymphoblastic leukemia depends on mRNA translation and complement component 3