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PXD038822

PXD038822 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleCombinatorial treatment with PARP and MAPK inhibitors to overcome phenotype switch-driven drug resistance in advanced melanoma
DescriptionMetastatic melanoma is either intrinsically resistant or rapidly acquires resistance to targeted drugs such as MAPK inhibitors (MAPKi). Here, using a drug screen targeting chromatin regulators in patient-derived 3D melanoma cell cultures, we discovered that PARP inhibitors are capable of restoring MAPKi sensitivity. This synergy was found to be independent of DNA damage repair pathways and was effective both in vitro and in vivo in patients-derived xenografts. Strikingly, through integrated transcriptomic, proteomic and epigenomic analysis, we discovered that PARPi induces lysosomal autophagy which was accompanied by enhanced mitochondrial lipid metabolism that, ultimately, increased antigen presentation and sensitivity to T-cell cytotoxicity. Moreover, we also found that PARP inhibitors regulated EMT-like phenotype switching by dampening the mesenchymal phenotype via transcriptomic and epigenetic rearrangements. This, in turn, redirected melanoma cells towards a proliferative and, thus, MAPKi-sensitive state. Our study provides a scientific rational for treating patients with PARPi in combination with MAPKi to annihilate acquired therapy resistance.
HostingRepositoryPRIDE
AnnounceDate2024-10-22
AnnouncementXMLSubmission_2024-10-22_06:02:50.752.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterDeena Leslie Pedrioli
SpeciesList scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationListNo PTMs are included in the dataset
InstrumentOrbitrap Fusion Lumos
Dataset History
RevisionDatetimeStatusChangeLog Entry
02022-12-13 23:23:06ID requested
12023-09-08 01:46:23announced
22024-10-22 06:02:51announced2024-10-22: Updated project metadata.
Publication List
Dataset with its publication pending
Keyword List
submitter keyword: Melanoma, label-free quantification, LC-MS/MS
Contact List
Michael O. Hottiger
contact affiliationDepartment of Molecular Mechanisms of Disease University of Zurich Winterthurerstr. 190 8057 Zurich, Switzerland
contact emailmichael.hottiger@dmmd.uzh.ch
lab head
Deena Leslie Pedrioli
contact affiliationUniversity of Zürich
contact emaildeena.lesliepedrioli@dmmd.uzh.ch
dataset submitter
Full Dataset Link List
Dataset FTP location
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PRIDE project URI
Repository Record List
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