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Sharma A, Ewald CY. Clearance of extracellular human amyloid-β aggregates in C. elegans by nutraceutical and pharmaceutical interventions. MICROPUBLICATION BIOLOGY 2024; 2024:10.17912/micropub.biology.000907. [PMID: 38287930 PMCID: PMC10823790 DOI: 10.17912/micropub.biology.000907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 12/20/2023] [Accepted: 01/03/2024] [Indexed: 01/31/2024]
Abstract
Numerous anti-amyloid therapies have seen recent clinical development and approval, such as the monoclonal antibodies aducanumab and lecanemab. However, in Alzheimer's disease patients, amyloid-β (Aβ) plaques are found embedded in the extracellular matrix and surrounded by collagens, which might hinder these antibodies from targeting the plaques. We reasoned that various different nutraceutical and pharmaceutical agents might induce collagen and extracellular matrix turnover and removal of these collagen-embedded amyloid-β (Aβ) plaques. To address this idea, here, we used a transgenic C. elegans strain, LSD2104 , expressing fluorescent human Aβ 1-42 as an in-vivo model for secreted amyloid aggregation in the extracellular matrix. We performed a screen of various nutraceuticals and pharmaceuticals along with different combinations, and we found that quercetin 350 µM and rifampicin 75 µM successfully cleared the extracellular amyloid plaque burden compared to the 0.2% DMSO control group, with a combination of the two agents producing the maximum effect compared to either drug alone. These results may implicate the exploration of combination therapeutics of nutraceuticals and pharmaceuticals in the clearance of amyloid-β (Aβ) plaques in Alzheimer's disease.
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Affiliation(s)
- Arastu Sharma
- Eidgenössische Technische Hochschule Zürich, Department of Health Sciences and Technology, Institute of Translational Medicine, 8603 Schwerzenbach-Zürich, Switzerland
- Johns Hopkins University, Baltimore, Maryland, United States
| | - Collin Y Ewald
- Eidgenössische Technische Hochschule Zürich, Department of Health Sciences and Technology, Institute of Translational Medicine, 8603 Schwerzenbach-Zürich, Switzerland
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Teuscher AC, Statzer C, Goyala A, Domenig SA, Schoen I, Hess M, Hofer AM, Fossati A, Vogel V, Goksel O, Aebersold R, Ewald CY. Longevity interventions modulate mechanotransduction and extracellular matrix homeostasis in C. elegans. Nat Commun 2024; 15:276. [PMID: 38177158 PMCID: PMC10766642 DOI: 10.1038/s41467-023-44409-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 12/12/2023] [Indexed: 01/06/2024] Open
Abstract
Dysfunctional extracellular matrices (ECM) contribute to aging and disease. Repairing dysfunctional ECM could potentially prevent age-related pathologies. Interventions promoting longevity also impact ECM gene expression. However, the role of ECM composition changes in healthy aging remains unclear. Here we perform proteomics and in-vivo monitoring to systematically investigate ECM composition (matreotype) during aging in C. elegans revealing three distinct collagen dynamics. Longevity interventions slow age-related collagen stiffening and prolong the expression of collagens that are turned over. These prolonged collagen dynamics are mediated by a mechanical feedback loop of hemidesmosome-containing structures that span from the exoskeletal ECM through the hypodermis, basement membrane ECM, to the muscles, coupling mechanical forces to adjust ECM gene expression and longevity via the transcriptional co-activator YAP-1 across tissues. Our results provide in-vivo evidence that coordinated ECM remodeling through mechanotransduction is required and sufficient to promote longevity, offering potential avenues for interventions targeting ECM dynamics.
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Affiliation(s)
- Alina C Teuscher
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, CH-8603, Switzerland
| | - Cyril Statzer
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, CH-8603, Switzerland
| | - Anita Goyala
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, CH-8603, Switzerland
| | - Seraina A Domenig
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, CH-8603, Switzerland
| | - Ingmar Schoen
- School of Pharmacy and Biomolecular Sciences, Irish Centre for Vascular Biology, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Zurich, Switzerland
| | - Max Hess
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, CH-8603, Switzerland
| | - Alexander M Hofer
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, CH-8603, Switzerland
| | - Andrea Fossati
- Department of Biology, Institute of Molecular Systems Biology, ETH Zürich, Zurich, Switzerland
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, 94158, CA, USA
| | - Viola Vogel
- Laboratory of Applied Mechanobiology, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Zurich, Switzerland
| | - Orcun Goksel
- Department of Information Technology and Electrical Engineering, ETH Zürich, Zürich, Switzerland
- Department of Information Technology, Uppsala University, Uppsala, Sweden
| | - Ruedi Aebersold
- Department of Biology, Institute of Molecular Systems Biology, ETH Zürich, Zurich, Switzerland
| | - Collin Y Ewald
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, CH-8603, Switzerland.
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Nyström A, Schaefer L. An American Journal of Physiology-Cell Physiology for the present and the future. Am J Physiol Cell Physiol 2023; 325:C1155-C1157. [PMID: 37746699 DOI: 10.1152/ajpcell.00455.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 09/26/2023]
Affiliation(s)
- Alexander Nyström
- Department of Dermatology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Liliana Schaefer
- Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany
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