Drosha-dependent microRNAs modulate FUS-mediated neurodegeneration in vivo
© The Author(s) 2023. Published by Oxford University Press on behalf of Nucleic Acids Research..
Mutations in the Fused in Sarcoma (FUS) gene cause the familial and progressive form of amyotrophic lateral sclerosis (ALS). FUS is a nuclear RNA-binding protein involved in RNA processing and the biogenesis of a specific set of microRNAs. Here we report that Drosha and two previously uncharacterized Drosha-dependent miRNAs are strong modulators of FUS expression and prevent the cytoplasmic segregation of insoluble mutant FUS in vivo. We demonstrate that depletion of Drosha mitigates FUS-mediated degeneration, survival and motor defects in Drosophila. Mutant FUS strongly interacts with Drosha and causes its cytoplasmic mis-localization into the insoluble FUS inclusions. Reduction in Drosha levels increases the solubility of mutant FUS. Interestingly, we found two Drosha dependent microRNAs, miR-378i and miR-6832-5p, which differentially regulate the expression, solubility and cytoplasmic aggregation of mutant FUS in iPSC neurons and mammalian cells. More importantly, we report different modes of action of these miRNAs against mutant FUS. Whereas miR-378i may regulate mutant FUS inclusions by preventing G3BP-mediated stress granule formation, miR-6832-5p may affect FUS expression via other proteins or pathways. Overall, our research reveals a possible association between ALS-linked FUS mutations and the Drosha-dependent miRNA regulatory circuit, as well as a useful perspective on potential ALS treatment via microRNAs.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:51 |
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| Enthalten in: |
Nucleic acids research - 51(2023), 20 vom: 10. Nov., Seite 11258-11276 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Kour, Sukhleen [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 15.11.2023 Date Revised 10.02.2024 published: Print Citation Status MEDLINE |
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| doi: |
10.1093/nar/gkad774 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 245 | 1 | 0 | |a Drosha-dependent microRNAs modulate FUS-mediated neurodegeneration in vivo |
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| 520 | |a © The Author(s) 2023. Published by Oxford University Press on behalf of Nucleic Acids Research. | ||
| 520 | |a Mutations in the Fused in Sarcoma (FUS) gene cause the familial and progressive form of amyotrophic lateral sclerosis (ALS). FUS is a nuclear RNA-binding protein involved in RNA processing and the biogenesis of a specific set of microRNAs. Here we report that Drosha and two previously uncharacterized Drosha-dependent miRNAs are strong modulators of FUS expression and prevent the cytoplasmic segregation of insoluble mutant FUS in vivo. We demonstrate that depletion of Drosha mitigates FUS-mediated degeneration, survival and motor defects in Drosophila. Mutant FUS strongly interacts with Drosha and causes its cytoplasmic mis-localization into the insoluble FUS inclusions. Reduction in Drosha levels increases the solubility of mutant FUS. Interestingly, we found two Drosha dependent microRNAs, miR-378i and miR-6832-5p, which differentially regulate the expression, solubility and cytoplasmic aggregation of mutant FUS in iPSC neurons and mammalian cells. More importantly, we report different modes of action of these miRNAs against mutant FUS. Whereas miR-378i may regulate mutant FUS inclusions by preventing G3BP-mediated stress granule formation, miR-6832-5p may affect FUS expression via other proteins or pathways. Overall, our research reveals a possible association between ALS-linked FUS mutations and the Drosha-dependent miRNA regulatory circuit, as well as a useful perspective on potential ALS treatment via microRNAs | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, N.I.H., Extramural | |
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| 700 | 1 | |a Mawrie, Darilang |e verfasserin |4 aut | |
| 700 | 1 | |a Bilstein, Jessica |e verfasserin |4 aut | |
| 700 | 1 | |a Sivasubramanian, Ramakrishnan |e verfasserin |4 aut | |
| 700 | 1 | |a Ward, Caroline |e verfasserin |4 aut | |
| 700 | 1 | |a Roy, Rishit |e verfasserin |4 aut | |
| 700 | 1 | |a Rajasundaram, Dhivyaa |e verfasserin |4 aut | |
| 700 | 1 | |a Sterneckert, Jared |e verfasserin |4 aut | |
| 700 | 1 | |a Pandey, Udai Bhan |e verfasserin |4 aut | |
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