PXD043963 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | Native-state proteomics of Parvalbumin interneurons identifies novel molecular signatures and metabolic vulnerabilities to early Alzheimer's disease pathology |
Description | One of the earliest pathophysiological perturbations in Alzheimer’s Disease (AD) may arise from dysfunction of fast-spiking parvalbumin (PV) interneurons (PV-INs). Defining early protein-level (proteomic) alterations in PV-INs can provide key biological and translationally relevant insights. Here, we use cell-type-specific in vivo biotinylation of proteins (CIBOP) coupled with mass spectrometry to obtain native-state proteomes of PV interneurons. PV-INs exhibited proteomic signatures of high metabolic, mitochondrial, and translational activity, with over-representation of causally linked AD genetic risk factors. Analyses of bulk brain proteomes indicated strong correlations between PV-IN proteins with cognitive decline in humans, and with progressive neuropathology in humans and mouse models of Aβ pathology. Furthermore, PV-IN-specific proteomes revealed unique signatures of increased mitochondrial and metabolic proteins, but decreased synaptic and mTOR signaling proteins in response to early Aβ pathology. PV-specific changes were not apparent in whole-brain proteomes. These findings showcase the first nativestate PV-IN proteomes in mammalian brain, revealing a molecular basis for their unique vulnerabilities in AD |
HostingRepository | PRIDE |
AnnounceDate | 2024-10-22 |
AnnouncementXML | Submission_2024-10-22_06:32:04.978.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Juliet Santiago |
SpeciesList | scientific name: Mus musculus (Mouse); NCBI TaxID: 10090; |
ModificationList | phosphorylated residue; acetylated residue; deamidated residue |
Instrument | Q Exactive HF |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2023-07-20 12:35:15 | ID requested | |
1 | 2024-03-04 08:52:10 | announced | |
⏵ 2 | 2024-10-22 06:32:05 | announced | 2024-10-22: Updated project metadata. |
Publication List
10.1101/2023.05.17.541038; |
Kumar P, Goettemoeller AM, Espinosa-Garcia C, Tobin BR, Tfaily A, Nelson RS, Natu A, Dammer EB, Santiago JV, Malepati S, Cheng L, Xiao H, Duong D, Seyfried NT, Wood LB, Rowan MJ, Rangaraju S, Native-state proteomics of Parvalbumin interneurons identifies novel molecular signatures and metabolic vulnerabilities to early Alzheimer's disease pathology. bioRxiv, ():(2023) [pubmed] |
Keyword List
submitter keyword: Alzheimer’s disease,Parvalbumin interneurons, proteomics |
Contact List
Srikant Rangaraju |
contact affiliation | Associate Professor, Department of Neurology, Emory University |
contact email | srikant.rangaraju@emory.edu |
lab head | |
Juliet Santiago |
contact affiliation | Emory University |
contact email | jvsanti@emory.edu |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD043963
- Label: PRIDE project
- Name: Native-state proteomics of Parvalbumin interneurons identifies novel molecular signatures and metabolic vulnerabilities to early Alzheimer's disease pathology