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Xu D, Zhou J, Soon WL, Kutzli I, Molière A, Diedrich S, Radiom M, Handschin S, Li B, Li L, Sturla SJ, Ewald CY, Mezzenga R. Food amyloid fibrils are safe nutrition ingredients based on in-vitro and in-vivo assessment. Nat Commun 2023; 14:6806. [PMID: 37884488 PMCID: PMC10603083 DOI: 10.1038/s41467-023-42486-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023] Open
Abstract
Food protein amyloid fibrils have superior technological, nutritional, sensorial, and physical properties compared to native monomers, but there is as yet insufficient understanding of their digestive fate and safety for wide consumption. By combining SDS-PAGE, ELISA, fluorescence, AFM, MALDI-MS, CD, microfluidics, and SAXS techniques for the characterization of β-lactoglobulin and lysozyme amyloid fibrils subjected to in-vitro gastrointestinal digestion, here we show that either no noticeable conformational differences exist between amyloid aggregates and their monomer counterparts after the gastrointestinal digestion process (as in β-lactoglobulin), or that amyloid fibrils are digested significantly better than monomers (as in lysozyme). Moreover, in-vitro exposure of human cell lines and in-vivo studies with C. elegans and mouse models, indicate that the digested fibrils present no observable cytotoxicity, physiological abnormalities in health-span, nor accumulation of fibril-induced plaques in brain nor other organs. These extensive in-vitro and in-vivo studies together suggest that the digested food amyloids are at least equally as safe as those obtained from the digestion of corresponding native monomers, pointing to food amyloid fibrils as potential ingredients for human nutrition.
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Affiliation(s)
- Dan Xu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Plant Protein Deep Processing, Ministry of Education, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, 510640, China
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
| | - Jiangtao Zhou
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland.
| | - Wei Long Soon
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ines Kutzli
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
| | - Adrian Molière
- Institute of Translational Medicine, Department of Health Sciences and Technology (HEST), ETH Zurich, Schwerzenbach, Switzerland
| | - Sabine Diedrich
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
| | - Milad Radiom
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
- Laboratory of Food Immunology, Institute of Food, Nutrition and Health, ETH Zürich, Zürich, Switzerland
| | - Stephan Handschin
- Scientific Center for Optical and Electron Microscopy (ScopeM), ETH Zurich, Otto-Stern-Weg 3, 8093, Zurich, Switzerland
| | - Bing Li
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Plant Protein Deep Processing, Ministry of Education, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, 510640, China
| | - Lin Li
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Plant Protein Deep Processing, Ministry of Education, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou, 510640, China
| | - Shana J Sturla
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland
| | - Collin Y Ewald
- Institute of Translational Medicine, Department of Health Sciences and Technology (HEST), ETH Zurich, Schwerzenbach, Switzerland
| | - Raffaele Mezzenga
- Institute of Food, Nutrition and Health (IFNH), Department of Health Sciences and Technology (HEST), ETH Zurich, Zürich, 8092, Switzerland.
- Department of Materials, ETH Zurich, Zürich, 8092, Switzerland.
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Schmauck-Medina T, Molière A, Lautrup S, Zhang J, Chlopicki S, Madsen HB, Cao S, Soendenbroe C, Mansell E, Vestergaard MB, Li Z, Shiloh Y, Opresko PL, Egly JM, Kirkwood T, Verdin E, Bohr VA, Cox LS, Stevnsner T, Rasmussen LJ, Fang EF. New hallmarks of ageing: a 2022 Copenhagen ageing meeting summary. Aging (Albany NY) 2022; 14:6829-6839. [PMID: 36040386 PMCID: PMC9467401 DOI: 10.18632/aging.204248] [Citation(s) in RCA: 108] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 08/14/2022] [Indexed: 01/02/2023]
Abstract
Genomic instability, telomere attrition, epigenetic alterations, mitochondrial dysfunction, loss of proteostasis, deregulated nutrient-sensing, cellular senescence, stem cell exhaustion, and altered intercellular communication were the original nine hallmarks of ageing proposed by López-Otín and colleagues in 2013. The proposal of these hallmarks of ageing has been instrumental in guiding and pushing forward research on the biology of ageing. In the nearly past 10 years, our in-depth exploration on ageing research has enabled us to formulate new hallmarks of ageing which are compromised autophagy, microbiome disturbance, altered mechanical properties, splicing dysregulation, and inflammation, among other emerging ones. Amalgamation of the 'old' and 'new' hallmarks of ageing may provide a more comprehensive explanation of ageing and age-related diseases, shedding light on interventional and therapeutic studies to achieve healthy, happy, and productive lives in the elderly.
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Affiliation(s)
- Tomas Schmauck-Medina
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Lørenskog 1478, Norway
| | - Adrian Molière
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Lørenskog 1478, Norway
| | - Sofie Lautrup
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Lørenskog 1478, Norway
| | - Jianying Zhang
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Lørenskog 1478, Norway
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow 30-348, Poland
| | - Helena Borland Madsen
- Center for Healthy Ageing, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen 2400, Denmark
| | - Shuqin Cao
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Lørenskog 1478, Norway
| | - Casper Soendenbroe
- Institute of Sports Medicine Copenhagen, Department of Orthopedic Surgery, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen 2400, Denmark
| | - Els Mansell
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden.,Stem Cell Laboratory, UCL Cancer Institute, University College London, London, UK
| | - Mark Bitsch Vestergaard
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital Rigshospitalet, Glostrup 2600, Denmark
| | - Zhiquan Li
- Center for Healthy Ageing, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen 2400, Denmark
| | - Yosef Shiloh
- The David and Inez Myers Laboratory of Cancer Genetics, Department of Human Molecular Genetics and Biochemistry, Tel Aviv University School of Medicine P.O.B 39040, Tel Aviv, Israel
| | - Patricia L Opresko
- Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, Pittsburgh, PA 15261, USA.,UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA
| | - Jean-Marc Egly
- Department of Functional Genomics and Cancer, IGBMC, CNRS/INSERM/University of Strasbourg, Equipe labellisée Ligue contre le Cancer, Strasbourg, France.,College of Medicine, Center for Genomics and Precision Medicine, National Taiwan University, Taipei City, Taiwan
| | - Thomas Kirkwood
- Center for Healthy Ageing, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen 2400, Denmark.,UK National Innovation Centre for Ageing, The Catalyst, 3 Science Square, Newcastle University, Newcastle upon Tyne, NE4 5TG, UK
| | - Eric Verdin
- Buck Institute for Research on Ageing, Novato, CA 94945, USA
| | - Vilhelm A Bohr
- Center for Healthy Ageing, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen 2400, Denmark.,Section on DNA Repair, National Institute on Ageing, Baltimore, MD 21224, USA
| | - Lynne S Cox
- Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK
| | - Tinna Stevnsner
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus 8000, Denmark
| | - Lene Juel Rasmussen
- Center for Healthy Ageing, Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen 2400, Denmark
| | - Evandro F Fang
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Lørenskog 1478, Norway.,The Norwegian Centre on Healthy Ageing (NO-Age), Oslo, Norway
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Molière A, Beer KB, Wehman AM. Dopey proteins are essential but overlooked regulators of membrane trafficking. J Cell Sci 2022; 135:274973. [PMID: 35388894 DOI: 10.1242/jcs.259628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Dopey family proteins play crucial roles in diverse processes from morphogenesis to neural function and are conserved from yeast to mammals. Understanding the mechanisms behind these critical functions could have major clinical significance, as dysregulation of Dopey proteins has been linked to the cognitive defects in Down syndrome, as well as neurological diseases. Dopey proteins form a complex with the non-essential GEF-like protein Mon2 and an essential lipid flippase from the P4-ATPase family. Different combinations of Dopey, Mon2 and flippases have been linked to regulating membrane remodeling, from endosomal recycling to extracellular vesicle formation, through their interactions with lipids and other membrane trafficking regulators, such as ARL1, SNX3 and the kinesin-1 light chain KLC2. Despite these important functions and their likely clinical significance, Dopey proteins remain understudied and their roles elusive. Here, we review the major scientific discoveries relating to Dopey proteins and detail key open questions regarding their function to draw attention to these fascinating enigmas.
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Affiliation(s)
- Adrian Molière
- Department of Biological Sciences, University of Denver, Denver, CO 80208, USA
| | - Katharina B Beer
- Rudolf Virchow Center, Julius Maximilian University of Würzburg, D-97080, Würzburg, Germany
| | - Ann M Wehman
- Department of Biological Sciences, University of Denver, Denver, CO 80208, USA.,Rudolf Virchow Center, Julius Maximilian University of Würzburg, D-97080, Würzburg, Germany
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