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PXD059062

PXD059062 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleIntersecting impact of CAG repeat and Huntingtin knockout in stem cell-derived cortical neurons: Pluripotent stage
DescriptionHuntington Disease (HD) is caused by a CAG repeat expansion in the gene encoding Huntingtin (HTT). While normal HTT function appears impacted by the mutation, the specific pathways unique to CAG repeat expansion versus loss of normal function are unclear. To understand the impact of the CAG repeat expansion, we evaluated biological signatures of HTT knockout (HTT KO) versus those that occur from the CAG repeat expansion by applying multi-omics, live cell imaging, survival analysis and a novel feature-based pipeline to study cortical neurons (eCNs) derived from an isogenic human embryonic stem cell series (RUES2). HTT KO and the CAG repeat expansion influence developmental trajectories of eCNs, with opposing effects on the growth. Network analyses of differentially expressed genes and proteins associated with enriched epigenetic motifs identified subnetworks common to CAG repeat expansion and HTT KO that include neuronal differentiation, cell cycle regulation, and mechanisms related to transcriptional repression and may represent gain-of-function mechanisms that cannot be explained by HTT loss of function alone. A combination of dominant and loss-of-function mechanisms are likely involved in the aberrant neurodevelopmental and neurodegenerative features of HD that can help inform therapeutic strategies.
HostingRepositoryMassIVE
AnnounceDate2026-03-10
AnnouncementXMLSubmission_2026-03-10_11:32:12.123.xml
DigitalObjectIdentifier
ReviewLevelNon peer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterNiveda Sundararaman
SpeciesList scientific name: Homo sapiens; common name: human; NCBI TaxID: 9606;
ModificationListNo PTMs are included in the dataset
InstrumentTripleTOF 6600
Dataset History
RevisionDatetimeStatusChangeLog Entry
02024-12-19 15:39:19ID requested
12026-03-10 11:32:12announced
Publication List
no publication
Keyword List
submitter keyword: Huntington disease, embryonic stem cells, RUES2, DatasetType:Proteomics
Contact List
Jennifer Van Eyk
contact affiliationCedars Sinai Medical Center
contact emailjennifer.vaneyk@cshs.org
lab head
Niveda Sundararaman
contact affiliationCedars SInai Medical Center
contact emailNiveda.Sundararaman@cshs.org
dataset submitter
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MassIVE dataset URI
Dataset FTP location
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