Proteomics of mouse brain endothelium uncovers dysregulation of vesicular transport pathways during aging.


Journal

Nature aging
ISSN: 2662-8465
Titre abrégé: Nat Aging
Pays: United States
ID NLM: 101773306

Informations de publication

Date de publication:
Apr 2024
Historique:
received: 08 12 2021
accepted: 20 02 2024
pubmed: 23 3 2024
medline: 23 3 2024
entrez: 23 3 2024
Statut: ppublish

Résumé

Age-related decline in brain endothelial cell (BEC) function contributes critically to neurological disease. Comprehensive atlases of the BEC transcriptome have become available, but results from proteomic profiling are lacking. To gain insights into endothelial pathways affected by aging, we developed a magnetic-activated cell sorting-based mouse BEC enrichment protocol compatible with proteomics and resolved the profiles of protein abundance changes during aging. Unsupervised cluster analysis revealed a segregation of age-related protein dynamics with biological functions, including a downregulation of vesicle-mediated transport. We found a dysregulation of key regulators of endocytosis and receptor recycling (most prominently Arf6), macropinocytosis and lysosomal degradation. In gene deletion and overexpression experiments, Arf6 affected endocytosis pathways in endothelial cells. Our approach uncovered changes not picked up by transcriptomic studies, such as accumulation of vesicle cargo and receptor ligands, including Apoe. Proteomic analysis of BECs from Apoe-deficient mice revealed a signature of accelerated aging. Our findings provide a resource for analysing BEC function during aging.

Identifiants

pubmed: 38519806
doi: 10.1038/s43587-024-00598-z
pii: 10.1038/s43587-024-00598-z
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

595-612

Subventions

Organisme : Deutsche Forschungsgemeinschaft (German Research Foundation)
ID : DI 722/13-1
Organisme : Deutsche Forschungsgemeinschaft (German Research Foundation)
ID : DI 722/16-1
Organisme : Deutsche Forschungsgemeinschaft (German Research Foundation)
ID : BE 6169/1-1
Organisme : Fondation Leducq
ID : N022CVD01

Informations de copyright

© 2024. The Author(s), under exclusive licence to Springer Nature America, Inc.

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Auteurs

Katalin Todorov-Völgyi (K)

Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany. katalin.voelgyi@med.uni-muenchen.de.

Judit González-Gallego (J)

Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany.
Graduate School of Systemic Neuroscience (GSN), University Hospital, LMU Munich, Munich, Germany.

Stephan A Müller (SA)

German Center for Neurodegenerative Diseases (DZNE) Munich, Munich, Germany.
Neuroproteomics, School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.

Nathalie Beaufort (N)

Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany.

Rainer Malik (R)

Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany.

Martina Schifferer (M)

German Center for Neurodegenerative Diseases (DZNE) Munich, Munich, Germany.
Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.

Mihail Ivilinov Todorov (MI)

Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany.
Institute for Tissue Engineering and Regenerative Medicine (iTERM), Helmholtz Zentrum München, Neuherberg, Germany.

Dennis Crusius (D)

Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany.

Sophie Robinson (S)

Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany.
Graduate School of Systemic Neuroscience (GSN), University Hospital, LMU Munich, Munich, Germany.
German Center for Neurodegenerative Diseases (DZNE) Munich, Munich, Germany.

Andree Schmidt (A)

German Center for Neurodegenerative Diseases (DZNE) Munich, Munich, Germany.
Neuroproteomics, School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.

Jakob Körbelin (J)

Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.

Florence Bareyre (F)

Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.
Institute of Clinical Neuroimmunology, University Hospital, LMU Munich, Munich, Germany.
Biomedical Center Munich (BMC), Faculty of Medicine, LMU Munich, Planegg-Martinsried, Germany.

Ali Ertürk (A)

Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany.
Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.
Institute for Tissue Engineering and Regenerative Medicine (iTERM), Helmholtz Zentrum München, Neuherberg, Germany.

Christian Haass (C)

German Center for Neurodegenerative Diseases (DZNE) Munich, Munich, Germany.
Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.
Division of Metabolic Biochemistry, Biomedical Center Munich (BMC), Faculty of Medicine, Ludwig-Maximilians-Universität München, Munich, Germany.

Mikael Simons (M)

German Center for Neurodegenerative Diseases (DZNE) Munich, Munich, Germany.
Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.

Dominik Paquet (D)

Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany.
Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.

Stefan F Lichtenthaler (SF)

German Center for Neurodegenerative Diseases (DZNE) Munich, Munich, Germany.
Neuroproteomics, School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.

Martin Dichgans (M)

Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany. martin.dichgans@med.uni-muenchen.de.
German Center for Neurodegenerative Diseases (DZNE) Munich, Munich, Germany. martin.dichgans@med.uni-muenchen.de.
Munich Cluster for Systems Neurology (SyNergy), Munich, Germany. martin.dichgans@med.uni-muenchen.de.

Classifications MeSH