%0 Journal Article
%A Kaurani, Lalit
%A Pradhan, Ranjit
%A Schröder, Sophie
%A Burkhardt, Susanne
%A Schuetz, Anna-Lena
%A Krüger, Dennis M
%A Pena, Tonatiuh
%A Heutink, Peter
%A Sananbenesi, Farahnaz
%A Fischer, Andre
%T A role for astrocytic miR-129-5p in frontotemporal dementia.
%J Translational Psychiatry
%V 15
%N 1
%@ 2158-3188
%C London
%I Nature Publishing Group
%M DZNE-2025-00518
%P 142
%D 2025
%X Frontotemporal dementia is a debilitating neurodegenerative disorder characterized by frontal and temporal lobe degeneration, resulting in behavioral changes, language difficulties, and cognitive decline. In this study, smallRNA sequencing was conducted on postmortem brain tissues obtained from the frontal and temporal of FTD patients with GRN, MAPT, or C9ORF72 mutations. Our analysis identified miR-129-5p as consistently deregulated across all analyzed mutation conditions and brain regions. Functional investigations in in-vitro models revealed a novel role of miR-129-5p in astrocytes, where its loss led to neuroinflammation and impaired neuronal support functions, including reduced glutamate uptake. Depletion of miR-129-5p in astrocytes also resulted in the loss of neuronal spines and altered neuronal network activity in a cell culture system. These findings highlight miR-129-5p as a potential therapeutic target in neurodegenerative diseases and also sheds light on the role of astrocytes in Frontotemporal dementia pathogenesis.
%K Humans
%K Frontotemporal Dementia: genetics
%K Frontotemporal Dementia: metabolism
%K Frontotemporal Dementia: pathology
%K Astrocytes: metabolism
%K MicroRNAs: genetics
%K MicroRNAs: metabolism
%K tau Proteins: genetics
%K Male
%K Female
%K C9orf72 Protein: genetics
%K Progranulins: genetics
%K Middle Aged
%K Mutation
%K Aged
%K Brain: metabolism
%K Glutamic Acid: metabolism
%K MicroRNAs (NLM Chemicals)
%K tau Proteins (NLM Chemicals)
%K Mirn129 microRNA, human (NLM Chemicals)
%K MAPT protein, human (NLM Chemicals)
%K C9orf72 Protein (NLM Chemicals)
%K Progranulins (NLM Chemicals)
%K GRN protein, human (NLM Chemicals)
%K C9orf72 protein, human (NLM Chemicals)
%K Glutamic Acid (NLM Chemicals)
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:40216778
%2 pmc:PMC11992244
%R 10.1038/s41398-025-03338-y
%U https://pub.dzne.de/record/277991