1
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Pfeiffer PB, Ugrina M, Schwierz N, Sigurdson CJ, Schmidt M, Fändrich M. Cryo-EM Analysis of the Effect of Seeding with Brain-derived Aβ Amyloid Fibrils. J Mol Biol 2024; 436:168422. [PMID: 38158175 DOI: 10.1016/j.jmb.2023.168422] [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: 09/21/2023] [Revised: 12/05/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
Aβ amyloid fibrils from Alzheimer's brain tissue are polymorphic and structurally different from typical in vitro formed Aβ fibrils. Here, we show that brain-derived (ex vivo) fibril structures can be proliferated by seeding in vitro. The proliferation reaction is only efficient for one of the three abundant ex vivo Aβ fibril morphologies, which consists of two peptide stacks, while the inefficiently proliferated fibril morphologies contain four or six peptide stacks. In addition to the seeded fibril structures, we find that de novo nucleated fibril structures can emerge in seeded samples if the seeding reaction is continued over multiple generations. These data imply a competition between de novo nucleation and seed extension and suggest further that seeding favours the outgrowth of fibril morphologies that contain fewer peptide stacks.
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Affiliation(s)
| | - Marijana Ugrina
- Institute of Physics, University of Augsburg, Universitätsstraße 1, 86159 Augsburg, Germany
| | - Nadine Schwierz
- Institute of Physics, University of Augsburg, Universitätsstraße 1, 86159 Augsburg, Germany
| | - Christina J Sigurdson
- Department of Pathology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0612, USA
| | - Matthias Schmidt
- Institute of Protein Biochemistry, Ulm University, Helmholtzstraße 8/1, 89081 Ulm, Germany
| | - Marcus Fändrich
- Institute of Protein Biochemistry, Ulm University, Helmholtzstraße 8/1, 89081 Ulm, Germany
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2
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Schadt I. Health concerns about possible long-term effects of legally marketed milk and dairy from animals with intramammary infections. Front Public Health 2023; 11:1200924. [PMID: 37701910 PMCID: PMC10494540 DOI: 10.3389/fpubh.2023.1200924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 08/01/2023] [Indexed: 09/14/2023] Open
Abstract
Milk and dairy from animals with subclinical mastitis infections are marketable. Mastitis is detected with the somatic cell count (SCC). The EU regulation, among the stricter ones, limits an average of 400,000 somatic cells/ml in milk. Other countries have higher or no thresholds. This level suggests 40% of infected animals, and we indeed consume mastitic milk and dairy. A worldwide prevalence of dairy cattle and buffaloes with subclinical mastitis is estimated to range between 34 and 46%. The current food safety regulations account for mastitis pathogens, their toxins, and the risk of antimicrobial residues, but milk from animals with mastitis contains also compounds that derive from an immune response and inflammation process with biological function for the offspring. To the best of the current knowledge, it cannot be excluded that these compounds do not interfere with human homeostasis and that they do not contribute to redox or cytokine dysregulation that, in turn, could promote certain chronic diseases. These compounds include radicals, oxidation products, nitrosamines, and proinflammatory cytokines with nitrosamines being already recognized as probable carcinogens. Mastitis also alters the composition of caseins, plasmin, and plasminogen activators, which may be related to increased transformation into amyloid with similar characteristics as the fibrils associated with Alzheimer's disease. We should determine whether these bioactive compounds could, alone or in combination, represent any long-term risk to the consumer's health. Adapted regulations and concomitant subsidies for farmers are suggested, for sensing tools that reveal individual SCC and mastitis at milking. Frequent SCC determination is the prerequisite for any mastitis control program.
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Affiliation(s)
- Iris Schadt
- Research Section for Nutraceuticals and Health Products, Consorzio per la Ricerca nel Settore della Filiera Lattiero-Casearia e dell'Agroalimentare (CoRFiLaC), Ragusa, Italy
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3
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Li Y, Dai J, Kametani F, Yazaki M, Ishigami A, Mori M, Miyahara H, Higuchi K. Renal function in aged C57BL/6J mice is impaired by deposition of age-related apolipoprotein A-II amyloid independent of kidney aging. THE AMERICAN JOURNAL OF PATHOLOGY 2023:S0002-9440(23)00112-8. [PMID: 36965775 DOI: 10.1016/j.ajpath.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/22/2023] [Accepted: 03/07/2023] [Indexed: 03/27/2023]
Abstract
Spontaneous and age-related amyloidosis has been reported in C57BL/6J mice; however, the biochemical characteristics of age-related amyloidosis remain unclear. Therefore, we herein investigated the age-related prevalence of amyloidosis, the types of amyloid fibril proteins, and the effects of amyloid deposition on renal function in C57BL/6J mice. The results obtained revealed a high incidence of amyloidosis in C57BL/6J mice originating from the Jackson laboratory as well as the deposition of large amounts of amyloid in the glomeruli of aged mice. We identified the amyloid fibril protein in C57BL/6J mice as wild-type apolipoprotein A-II. We induced renal amyloid deposition in 40-week-old mice, equivalent to that of spontaneous development in 80-week-old mice, to rule out the effects of aging, and revealed subsequent damage to kidney function by amyloid deposits. Furthermore, amyloid deposition in the mesangial region decreased podocyte density, compromised foot processes, and led to the accumulation of fibroblast growth factor 2 (FGF2) in glomeruli. Collectively, these results suggest that AApoAII deposition is a general pathology in aged C57BL/6J mice and is dependent on supplier colonies. Therefore, the effects of age-related amyloid deposition need to be considered in research on aging in mice.
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Affiliation(s)
- Ying Li
- Department of Aging Biology, Shinshu University Graduate School of Medicine, Science and Technology, 3-1-1 Asahi, Matsumoto 390-8621, Japan
| | - Jian Dai
- Department of Neuro-health Innovation, Institute for Biomedical Sciences, Shinshu University, Matsumoto 390-8621, Japan
| | - Fuyuki Kametani
- Department of Brain and Neuroscience, Tokyo Metropolitan Institute of Medical Science, 156-8506 Tokyo, Japan
| | - Masahide Yazaki
- Department of Neuro-health Innovation, Institute for Biomedical Sciences, Shinshu University, Matsumoto 390-8621, Japan
| | - Akihito Ishigami
- Molecular Regulation of Aging, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan
| | - Masayuki Mori
- Department of Aging Biology, Shinshu University Graduate School of Medicine, Science and Technology, 3-1-1 Asahi, Matsumoto 390-8621, Japan; Department of Neuro-health Innovation, Institute for Biomedical Sciences, Shinshu University, Matsumoto 390-8621, Japan
| | - Hiroki Miyahara
- Department of Aging Biology, Shinshu University Graduate School of Medicine, Science and Technology, 3-1-1 Asahi, Matsumoto 390-8621, Japan; Department of Neuro-health Innovation, Institute for Biomedical Sciences, Shinshu University, Matsumoto 390-8621, Japan.
| | - Keiichi Higuchi
- Department of Neuro-health Innovation, Institute for Biomedical Sciences, Shinshu University, Matsumoto 390-8621, Japan; Community Health Care Research Centre, Nagano University Health and Medicine, Nagano 381-2227, Japan
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4
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Rahman MM, Pires RS, Herneke A, Gowda V, Langton M, Biverstål H, Lendel C. Food protein-derived amyloids do not accelerate amyloid β aggregation. Sci Rep 2023; 13:985. [PMID: 36720893 PMCID: PMC9889329 DOI: 10.1038/s41598-023-28147-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/13/2023] [Indexed: 02/01/2023] Open
Abstract
The deposition of proteins in the form of amyloid fibrils is closely associated with several serious diseases. The events that trigger the conversion from soluble functional proteins into insoluble amyloid are not fully understood. Many proteins that are not associated with disease can form amyloid with similar structural characteristics as the disease-associated fibrils, which highlights the potential risk of cross-seeding of disease amyloid by amyloid-like structures encountered in our surrounding. Of particular interest are common food proteins that can be transformed into amyloid under conditions similar to cooking. We here investigate cross-seeding of amyloid-β (Aβ), a peptide known to form amyloid during the development of Alzheimer's disease, by 16 types of amyloid fibrils derived from food proteins or peptides. Kinetic studies using thioflavin T fluorescence as output show that none of the investigated protein fibrils accelerates the aggregation of Aβ. In at least two cases (hen egg lysozyme and oat protein isolate) we observe retardation of the aggregation, which appears to originate from interactions between the food protein seeds and Aβ in aggregated form. The results support the view that food-derived amyloid is not a risk factor for development of Aβ pathology and Alzheimer's disease.
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Affiliation(s)
- M Mahafuzur Rahman
- Department of Chemistry, KTH Royal Institute of Technology, Teknikringen 30, 100 44, Stockholm, Sweden
| | - Rodrigo Sanches Pires
- Department of Chemistry, KTH Royal Institute of Technology, Teknikringen 30, 100 44, Stockholm, Sweden
| | - Anja Herneke
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, BioCentrum, Almas Allé 5, 756 61, Uppsala, Sweden
| | - Vasantha Gowda
- Department of Chemistry, KTH Royal Institute of Technology, Teknikringen 30, 100 44, Stockholm, Sweden
| | - Maud Langton
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, BioCentrum, Almas Allé 5, 756 61, Uppsala, Sweden
| | - Henrik Biverstål
- Department of Biosciences and Nutrition, Karolinska Institutet, NEO/Floor 8, Blickgången 16, 141 52, Huddinge, Sweden
| | - Christofer Lendel
- Department of Chemistry, KTH Royal Institute of Technology, Teknikringen 30, 100 44, Stockholm, Sweden.
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5
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Ferri F, Ferro S, Porporato F, Callegari C, Guglielmetti C, Mazza M, Ferrero M, Crinò C, Gallo E, Drigo M, Coppola LM, Gerardi G, Schulte TP, Ricagno S, Vogel M, Storni F, Bachmann MF, Vogt AC, Caminito S, Mazzini G, Lavatelli F, Palladini G, Merlini G, Zini E. AA-amyloidosis in cats (Felis catus) housed in shelters. PLoS One 2023; 18:e0281822. [PMID: 36989207 PMCID: PMC10057811 DOI: 10.1371/journal.pone.0281822] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 01/31/2023] [Indexed: 03/30/2023] Open
Abstract
Systemic AA-amyloidosis is a protein-misfolding disease characterized by fibril deposition of serum amyloid-A protein (SAA) in several organs in humans and many animal species. Fibril deposits originate from abnormally high serum levels of SAA during chronic inflammation. A high prevalence of AA-amyloidosis has been reported in captive cheetahs and a horizontal transmission has been proposed. In domestic cats, AA-amyloidosis has been mainly described in predisposed breeds but only rarely reported in domestic short-hair cats. Aims of the study were to determine AA-amyloidosis prevalence in dead shelter cats. Liver, kidney, spleen and bile were collected at death in cats from 3 shelters. AA-amyloidosis was scored. Shedding of amyloid fibrils was investigated with western blot in bile and scored. Descriptive statistics were calculated. In the three shelters investigated, prevalence of AA-amyloidosis was 57.1% (16/28 cats), 73.0% (19/26) and 52.0% (13/25), respectively. In 72.9% of cats (35 in total) three organs were affected concurrently. Histopathology and immunofluorescence of post-mortem extracted deposits identified SAA as the major protein source. The duration of stay in the shelters was positively associated with a histological score of AA-amyloidosis (B = 0.026, CI95% = 0.007-0.046; p = 0.010). AA-amyloidosis was very frequent in shelter cats. Presence of SAA fragments in bile secretions raises the possibility of fecal-oral transmission of the disease. In conclusion, AA-amyloidosis was very frequent in shelter cats and those staying longer had more deposits. The cat may represent a natural model of AA-amyloidosis.
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Affiliation(s)
- Filippo Ferri
- AniCura Istituto Veterinario di Novara, Granozzo con Monticello, Novara, Italy
- Studio Veterinario Associato Vet2Vet di Ferri e Porporato, Orbassano, Torino, Italy
- Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Padova, Italy
| | - Silvia Ferro
- Department of Comparative Biomedicine and Food Sciences, University of Padova, Legnaro, Padova, Italy
| | - Federico Porporato
- AniCura Istituto Veterinario di Novara, Granozzo con Monticello, Novara, Italy
- Studio Veterinario Associato Vet2Vet di Ferri e Porporato, Orbassano, Torino, Italy
| | - Carolina Callegari
- AniCura Istituto Veterinario di Novara, Granozzo con Monticello, Novara, Italy
| | - Chiara Guglielmetti
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, SC Diagnostica Specialistica, Torino, Italy
| | - Maria Mazza
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, SC Diagnostica Specialistica, Torino, Italy
| | - Marta Ferrero
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, SC Diagnostica Specialistica, Torino, Italy
| | - Chiara Crinò
- Department of Clinical Science and Services, The Royal Veterinary College, Hatfield, United Kingdom
| | - Enrico Gallo
- Department of Comparative Biomedicine and Food Sciences, University of Padova, Legnaro, Padova, Italy
| | - Michele Drigo
- Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Padova, Italy
| | - Luigi Michele Coppola
- Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Padova, Italy
| | - Gabriele Gerardi
- Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Padova, Italy
| | - Tim Paul Schulte
- Institute of Molecular and Translational Cardiology, IRCCS Policlinico San Donato, Milan, Italy
| | - Stefano Ricagno
- Institute of Molecular and Translational Cardiology, IRCCS Policlinico San Donato, Milan, Italy
- Departments of Biosciences, La Statale, University of Milan, Milan, Italy
| | - Monique Vogel
- Department of Rheumatology and Immunology, University Hospital Bern, Bern, Switzerland
- Department of BioMedical Research, University of Bern, Bern, Switzerland
| | - Federico Storni
- Department of Rheumatology and Immunology, University Hospital Bern, Bern, Switzerland
- Department of BioMedical Research, University of Bern, Bern, Switzerland
- Department of Visceral Surgery and Medicine, University Hospital of Bern, Bern, Switzerland
| | - Martin F Bachmann
- Department of Rheumatology and Immunology, University Hospital Bern, Bern, Switzerland
- Department of BioMedical Research, University of Bern, Bern, Switzerland
| | - Anne-Cathrine Vogt
- Department of Rheumatology and Immunology, University Hospital Bern, Bern, Switzerland
- Department of BioMedical Research, University of Bern, Bern, Switzerland
| | - Serena Caminito
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Giulia Mazzini
- Amyloidosis Research and Treatment Center, Fondazione IRCCS Policlinico San Matteo and University of Pavia, Pavia, Italy
| | | | - Giovanni Palladini
- Amyloidosis Research and Treatment Center, Fondazione IRCCS Policlinico San Matteo and University of Pavia, Pavia, Italy
| | - Giampaolo Merlini
- Amyloidosis Research and Treatment Center, Fondazione IRCCS Policlinico San Matteo and University of Pavia, Pavia, Italy
| | - Eric Zini
- AniCura Istituto Veterinario di Novara, Granozzo con Monticello, Novara, Italy
- Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Padova, Italy
- Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
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6
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Schulte T, Chaves-Sanjuan A, Mazzini G, Speranzini V, Lavatelli F, Ferri F, Palizzotto C, Mazza M, Milani P, Nuvolone M, Vogt AC, Vogel M, Palladini G, Merlini G, Bolognesi M, Ferro S, Zini E, Ricagno S. Cryo-EM structure of ex vivo fibrils associated with extreme AA amyloidosis prevalence in a cat shelter. Nat Commun 2022; 13:7041. [PMID: 36396658 PMCID: PMC9672049 DOI: 10.1038/s41467-022-34743-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 11/07/2022] [Indexed: 11/18/2022] Open
Abstract
AA amyloidosis is a systemic disease characterized by deposition of misfolded serum amyloid A protein (SAA) into cross-β amyloid in multiple organs in humans and animals. AA amyloidosis occurs at high SAA serum levels during chronic inflammation. Prion-like transmission was reported as possible cause of extreme AA amyloidosis prevalence in captive animals, e.g. 70% in cheetah and 57-73% in domestic short hair (DSH) cats kept in zoos and shelters, respectively. Herein, we present the 3.3 Å cryo-EM structure of AA amyloid extracted post-mortem from the kidney of a DSH cat with renal failure, deceased in a shelter with extreme disease prevalence. The structure reveals a cross-β architecture assembled from two 76-residue long proto-filaments. Despite >70% sequence homology to mouse and human SAA, the cat SAA variant adopts a distinct amyloid fold. Inclusion of an eight-residue insert unique to feline SAA contributes to increased amyloid stability. The presented feline AA amyloid structure is fully compatible with the 99% identical amino acid sequence of amyloid fragments of captive cheetah.
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Affiliation(s)
- Tim Schulte
- grid.419557.b0000 0004 1766 7370Institute of Molecular and Translational Cardiology, IRCCS Policlinico San Donato, 20097 Milan, Italy
| | - Antonio Chaves-Sanjuan
- grid.4708.b0000 0004 1757 2822Department of Biosciences, Università degli Studi di Milano, Milan, Italy ,grid.4708.b0000 0004 1757 2822Pediatric Research Center Fondazione R.E. Invernizzi and NOLIMITS Center, Università degli Studi di Milano, Milan, Italy
| | - Giulia Mazzini
- grid.8982.b0000 0004 1762 5736Department of Molecular Medicine, University of Pavia, Pavia, Italy ,grid.419425.f0000 0004 1760 3027Amyloidosis Research and Treatment Center, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Valentina Speranzini
- grid.4708.b0000 0004 1757 2822Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Francesca Lavatelli
- grid.8982.b0000 0004 1762 5736Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Filippo Ferri
- AniCura Istituto Veterinario Novara, Strada Provinciale 9, 28060 Granozzo con Monticello, Novara Italy
| | - Carlo Palizzotto
- AniCura Istituto Veterinario Novara, Strada Provinciale 9, 28060 Granozzo con Monticello, Novara Italy
| | - Maria Mazza
- grid.425427.20000 0004 1759 3180Istituto Zooprofilattico Sperimentale del Piemonte Liguria e Valle d’Aosta, S.C. Diagnostica Specialistica, Via Bologna 148, 10154 Torino, Italy
| | - Paolo Milani
- grid.8982.b0000 0004 1762 5736Department of Molecular Medicine, University of Pavia, Pavia, Italy ,grid.419425.f0000 0004 1760 3027Amyloidosis Research and Treatment Center, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Mario Nuvolone
- grid.8982.b0000 0004 1762 5736Department of Molecular Medicine, University of Pavia, Pavia, Italy ,grid.419425.f0000 0004 1760 3027Amyloidosis Research and Treatment Center, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Anne-Cathrine Vogt
- grid.5734.50000 0001 0726 5157Department for BioMedical Research (DBMR), University of Bern, 3008 Bern, Switzerland ,grid.411656.10000 0004 0479 0855Department of Rheumatology and Immunology, University Hospital Bern, 3010 Bern, Switzerland
| | - Monique Vogel
- grid.5734.50000 0001 0726 5157Department for BioMedical Research (DBMR), University of Bern, 3008 Bern, Switzerland ,grid.411656.10000 0004 0479 0855Department of Rheumatology and Immunology, University Hospital Bern, 3010 Bern, Switzerland
| | - Giovanni Palladini
- grid.8982.b0000 0004 1762 5736Department of Molecular Medicine, University of Pavia, Pavia, Italy ,grid.419425.f0000 0004 1760 3027Amyloidosis Research and Treatment Center, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Giampaolo Merlini
- grid.8982.b0000 0004 1762 5736Department of Molecular Medicine, University of Pavia, Pavia, Italy ,grid.419425.f0000 0004 1760 3027Amyloidosis Research and Treatment Center, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Martino Bolognesi
- grid.4708.b0000 0004 1757 2822Department of Biosciences, Università degli Studi di Milano, Milan, Italy ,grid.4708.b0000 0004 1757 2822Pediatric Research Center Fondazione R.E. Invernizzi and NOLIMITS Center, Università degli Studi di Milano, Milan, Italy
| | - Silvia Ferro
- grid.5608.b0000 0004 1757 3470Department of Comparative Biomedicine and Food Sciences, University of Padova, viale dell’Università 16, 35020 Legnaro, Padua Italy
| | - Eric Zini
- AniCura Istituto Veterinario Novara, Strada Provinciale 9, 28060 Granozzo con Monticello, Novara Italy ,grid.5608.b0000 0004 1757 3470Department of Animal Medicine, Production and Health, University of Padua, viale dell’Università 16, 35020 Legnaro, Padua Italy ,grid.7400.30000 0004 1937 0650Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland
| | - Stefano Ricagno
- grid.419557.b0000 0004 1766 7370Institute of Molecular and Translational Cardiology, IRCCS Policlinico San Donato, 20097 Milan, Italy ,grid.4708.b0000 0004 1757 2822Department of Biosciences, Università degli Studi di Milano, Milan, Italy
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7
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A comprehensive mini-review on amyloidogenesis of different SARS-CoV-2 proteins and its effect on amyloid formation in various host proteins. 3 Biotech 2022; 12:322. [PMID: 36254263 PMCID: PMC9558030 DOI: 10.1007/s13205-022-03390-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 09/30/2022] [Indexed: 11/21/2022] Open
Abstract
Amyloidogenesis is the inherent ability of proteins to change their conformation from native state to cross β-sheet rich fibrillar structures called amyloids which result in a wide range of diseases like Parkinson's disease, Alzheimer’s disease, Finnish familial amyloidosis, ATTR amyloidosis, British and Danish dementia, etc. COVID-19, on the other hand is seen to have many similarities in symptoms with other amyloidogenic diseases and the overlap of these morbidities and symptoms led to the proposition whether SARS-CoV-2 proteins are undergoing amyloidogenesis and whether it is resulting in or aggravating amyloidogenesis of any human host protein. Thus the SARS-CoV-2 proteins in infected cells, i.e., Spike (S) protein, Nucleocapsid (N) protein, and Envelope (E) protein were tested via different machinery and amyloidogenesis in them were proven. In this review, we will analyze the pathway of amyloid formation in S-protein, N-protein, E-protein along with the effect that SARS-CoV-2 is creating on various host proteins leading to the unexpected onset of many morbidities like COVID-induced Acute Respiratory Distress Syndrome (ARDS), Parkinsonism in young COVID patients, formation of fibrin microthrombi in heart, etc., and their future implications.
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8
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Cryo-EM demonstrates the in vitro proliferation of an ex vivo amyloid fibril morphology by seeding. Nat Commun 2022; 13:85. [PMID: 35013242 PMCID: PMC8748726 DOI: 10.1038/s41467-021-27688-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 11/15/2021] [Indexed: 11/08/2022] Open
Abstract
Several studies showed that seeding of solutions of monomeric fibril proteins with ex vivo amyloid fibrils accelerated the kinetics of fibril formation in vitro but did not necessarily replicate the seed structure. In this research we use cryo-electron microscopy and other methods to analyze the ability of serum amyloid A (SAA)1.1-derived amyloid fibrils, purified from systemic AA amyloidosis tissue, to seed solutions of recombinant SAA1.1 protein. We show that 98% of the seeded fibrils remodel the full fibril structure of the main ex vivo fibril morphology, which we used for seeding, while they are notably different from unseeded in vitro fibrils. The seeded fibrils show a similar proteinase K resistance as ex vivo fibrils and are substantially more stable to proteolytic digestion than unseeded in vitro fibrils. Our data support the view that the fibril morphology contributes to determining proteolytic stability and that pathogenic amyloid fibrils arise from proteolytic selection.
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9
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Embryonic cuticle from artemia cyst shell displays amyloid-like characteristics and nontoxicity after oral consumption. J Biosci 2021. [DOI: 10.1007/s12038-020-00130-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Morgan GJ. Transient disorder along pathways to amyloid. Biophys Chem 2021; 281:106711. [PMID: 34839162 DOI: 10.1016/j.bpc.2021.106711] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 01/15/2023]
Abstract
High-resolution structures of amyloid fibrils formed from normally-folded proteins have revealed non-native conformations of the polypeptide chains. Attaining these conformations apparently requires transition from the native state via a highly disordered conformation, in contrast to earlier models that posited a role for assembly of partially folded proteins. Modifications or interactions that extend the lifetime or constrain the conformations of these disordered states could act to enhance or suppress amyloid formation. Understanding how the properties of both the folded and transiently disordered structural ensembles influence the process of amyloid formation is a substantial challenge, but research into the properties of intrinsically disordered proteins will deliver important insights.
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Affiliation(s)
- Gareth J Morgan
- The Amyloidosis Center and Section of Hematology and Medical Oncology, Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA.
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11
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Rising A, Gherardi P, Chen G, Johansson J, Oskarsson ME, Westermark GT, Westermark P. AA amyloid in human food chain is a possible biohazard. Sci Rep 2021; 11:21069. [PMID: 34702933 PMCID: PMC8548551 DOI: 10.1038/s41598-021-00588-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 10/11/2021] [Indexed: 11/09/2022] Open
Abstract
AA amyloidosis can be transmitted experimentally in several mammalian and avian species as well as spontaneously between captive animals, even by oral intake of amyloid seeds. Amyloid seeding can cross species boundaries, and fibrils of one kind of amyloid protein may also seed other types. Here we show that meat from Swedish and Italian cattle for consumption by humans often contains AA amyloid and that bovine AA fibrils efficiently cross-seed human amyloid β peptide, associated with Alzheimer’s disease.
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Affiliation(s)
- Anna Rising
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Huddinge, Sweden.,Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Paola Gherardi
- Unità Operativa Igiene Degli Alimenti Di Origine Animale, Azienda Unità Sanitaria Locale Di Piacenza, Piazzale Milano, Piacenza, Italy
| | - Gefei Chen
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Huddinge, Sweden
| | - Jan Johansson
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Huddinge, Sweden
| | - Marie E Oskarsson
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | | | - Per Westermark
- Rudbeck Laboratory, C11, Department of Immunology, Genetics and Pathology, Uppsala University, 75185, Uppsala, Sweden.
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12
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Penticoff HB, Hipkiss HK, Hetak AA, Agnew DW, Fortin JS. Survey of amyloidosis cases among different free-living wild and zoo animals. Amyloid 2021; 28:145-152. [PMID: 34132151 DOI: 10.1080/13506129.2021.1940931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Amyloidosis comprises a range of protein-folding disorders characterised by a buildup of amyloid deposits in one or multiple organs. The pathogenesis and pathologic findings of amyloidosis can vary widely due to the nature of the precursor protein. In veterinary medicine, there are 10 proteins known to form amyloid deposits in various organs. This review aims to compare amyloidosis cases among different free-living wild and zoo animals focussing in part on the determination of the species particularly susceptible to the amyloid formation and specific prone-to-aggregate protein commonly involved. This review addresses the transmission of AA amyloidosis pertinent to institutions, such as zoos, housing multiple individuals and species in relatively close proximity. In addition, this review includes summarisation for definitive diagnosis of single or multiple cases of amyloidosis affecting free-living wild and zoo animals. Insights into the diversity, transmission, and pathogenesis of known amyloidogenic proteins and species prevalently affected may help to establish a preventive intervention and stimulate the discovery of new diagnostic and therapeutic strategies.
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Affiliation(s)
- Hailey B Penticoff
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Hannah K Hipkiss
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Ashley A Hetak
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Dalen W Agnew
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Jessica S Fortin
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
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13
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IWAIDE S, UJIKE N, KOBAYASHI K, SASSA Y, MURAKAMI T. Species-barrier on the cross-species oral transmission of bovine AA amyloidosis in mice. J Vet Med Sci 2021; 83:962-967. [PMID: 33907055 PMCID: PMC8267202 DOI: 10.1292/jvms.20-0713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 04/19/2021] [Indexed: 01/21/2023] Open
Abstract
In AA amyloidosis, cross-species oral transmission has been demonstrated in several animal models. While it is known that the transmission efficiency of AA amyloidosis between different species is lower than that among the same species, the mechanism of this species-barrier is unclear. In this study, we found at first that mice orally given a large amount of bovine AA simultaneously with inflammatory stimulation did not develop AA amyloidosis. Therefore, we hypothesized that the low efficiency of the cross-species oral transmission of AA amyloidosis might be due to the low absorption rate in Peyer's patches. To evaluate the hypothesis, we next investigated whether bovine AA was taken up by Peyer's patches and translocated to other organs in vivo and ex vivo models. The direct absorption of bovine AA by Peyer's patches was not observed. Besides, translocation of bovine AA to the mesenteric lymph nodes, spleen, liver, or kidney was not observed except the mesenteric lymph node of a single mouse. Thus, absorption of bovine AA by Peyer's patches occurred much less efficiently in mouse models of cross-species oral transmission of AA amyloidosis. The present study suggests that the less efficient amyloid uptake by Peyer's patches may be involved in the species-barrier of oral transmission of AA amyloidosis.
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Affiliation(s)
- Susumu IWAIDE
- Laboratory of Veterinary Toxicology, Cooperative Department
of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho,
Fuchu, Tokyo 183-8509, Japan
| | - Naoki UJIKE
- Laboratory of Veterinary Toxicology, Cooperative Department
of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho,
Fuchu, Tokyo 183-8509, Japan
| | - Kyoko KOBAYASHI
- Laboratory of Veterinary Toxicology, Cooperative Department
of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho,
Fuchu, Tokyo 183-8509, Japan
| | - Yukiko SASSA
- Laboratory of Veterinary Infectious Disease, Cooperative
Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8
Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - Tomoaki MURAKAMI
- Laboratory of Veterinary Toxicology, Cooperative Department
of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho,
Fuchu, Tokyo 183-8509, Japan
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14
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KOBAYASHI H, IWAIDE S, UJIKE N, MURAKAMI T. Oxazolone-induced gastrointestinal disorders enhance the oral transmission of AA amyloidosis in mice. J Vet Med Sci 2021; 83:935-939. [PMID: 33883362 PMCID: PMC8267199 DOI: 10.1292/jvms.21-0022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/11/2021] [Indexed: 11/22/2022] Open
Abstract
Amyloid A (AA) amyloidosis is a lethal disease characterized by systemic AA amyloid deposition, and is reported in many animal species. Despite experiments have shown that AA amyloidosis can be transmitted orally, horizontal transmission and cross-species transmission are concerns, the transmission mechanism has been unknown. In this study, we examined the oral transmission efficiency of AA amyloidosis using oxazolone-induced gastrointestinal disorder mice. As a result, the upper or lower gastrointestinal disorder groups developed more severe amyloid deposition in systemic tissues than the group without gastrointestinal disorders. The results of this study suggest that gastrointestinal damage promotes the oral transmission of AA amyloidosis.
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Affiliation(s)
- Hiroto KOBAYASHI
- Laboratory of Veterinary Toxicology, Cooperative Department
of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho,
Fuchu, Tokyo 183-8509, Japan
| | - Susumu IWAIDE
- Laboratory of Veterinary Toxicology, Cooperative Department
of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho,
Fuchu, Tokyo 183-8509, Japan
| | - Naoki UJIKE
- Laboratory of Veterinary Toxicology, Cooperative Department
of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho,
Fuchu, Tokyo 183-8509, Japan
| | - Tomoaki MURAKAMI
- Laboratory of Veterinary Toxicology, Cooperative Department
of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho,
Fuchu, Tokyo 183-8509, Japan
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15
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Sinha N, Thakur AK. Likelihood of amyloid formation in COVID-19-induced ARDS. Trends Microbiol 2021; 29:967-969. [PMID: 33795156 PMCID: PMC8007089 DOI: 10.1016/j.tim.2021.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 12/02/2022]
Abstract
Severe coronavirus disease 2019 (COVID-19) infection leads to multifactorial acute respiratory distress syndrome (ARDS), with little therapeutic success. The pathophysiology associated with ARDS or post-ARDS is not yet well understood. We hypothesize that amyloid formation occurring due to protein homeostasis disruption can be one of the complications associated with COVID-19-induced-ARDS.
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Affiliation(s)
- Nabodita Sinha
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, UP 208016, India
| | - Ashwani K Thakur
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, UP 208016, India.
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16
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Lin X, Watanabe K, Kuragano M, Tokuraku K. Aggregation of Mouse Serum Amyloid A Protein Was Promoted by Amyloid-Enhancing Factors with the More Genetically Homologous Serum Amyloid A. Int J Mol Sci 2021; 22:ijms22031036. [PMID: 33494290 PMCID: PMC7864520 DOI: 10.3390/ijms22031036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 01/18/2021] [Accepted: 01/20/2021] [Indexed: 12/13/2022] Open
Abstract
Amyloid A (AA) amyloidosis is a condition in which amyloid fibrils characterized by a linear morphology and a cross-β structure accumulate and are deposited extracellularly in organs, resulting in chronic inflammatory diseases and infections. The incidence of AA amyloidosis is high in humans and several animal species. Serum amyloid A (SAA) is one of the most important precursor amyloid proteins and plays a vital step in AA amyloidosis. Amyloid enhancing factor (AEF) serves as a seed for fibril formation and shortens the onset of AA amyloidosis sharply. In this study, we examined whether AEFs extracted and purified from five animal species (camel, cat, cattle, goat, and mouse) could promote mouse SAA (mSAA) protein aggregation in vitro using quantum-dot (QD) nanoprobes to visualize the aggregation. The results showed that AEFs shortened and promoted mSAA aggregation. In addition, mouse and cat AEFs showed higher mSAA aggregation-promoting activity than the camel, cattle, and goat AEFs. Interestingly, homology analysis of SAA in these five animal species revealed a more similar amino acid sequence homology between mouse and cat than between other animal species. Furthermore, a detailed comparison of amino acid sequences suggested that it was important to mSAA aggregation-promoting activity that the 48th amino acid was a basic residue (Lys) and the 125th amino acid was an acidic residue (Asp or Glu). These data imply that AA amyloidosis exhibits higher transmission activity among animals carrying genetically homologous SAA gene, and may provide a new understanding of the pathogenesis of amyloidosis.
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Affiliation(s)
- Xuguang Lin
- Muroran Institute of Technology, Graduate School of Engineering, Muroran 050-8585, Japan; (X.L.); (M.K.)
| | - Kenichi Watanabe
- Research Center of Global Agromedicine, Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, Japan;
| | - Masahiro Kuragano
- Muroran Institute of Technology, Graduate School of Engineering, Muroran 050-8585, Japan; (X.L.); (M.K.)
| | - Kiyotaka Tokuraku
- Muroran Institute of Technology, Graduate School of Engineering, Muroran 050-8585, Japan; (X.L.); (M.K.)
- Correspondence: ; Tel.: +81-0143-46-5721
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17
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Billant O, Friocourt G, Roux P, Voisset C. p53, A Victim of the Prion Fashion. Cancers (Basel) 2021; 13:E269. [PMID: 33450819 PMCID: PMC7828285 DOI: 10.3390/cancers13020269] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 12/17/2022] Open
Abstract
Identified in the late 1970s as an oncogene, a driving force leading to tumor development, p53 turned out to be a key tumor suppressor gene. Now p53 is considered a master gene regulating the transcription of over 3000 target genes and controlling a remarkable number of cellular functions. The elevated prevalence of p53 mutations in human cancers has led to a recurring questioning about the roles of mutant p53 proteins and their functional consequences. Both mutants and isoforms of p53 have been attributed dominant-negative and gain of function properties among which is the ability to form amyloid aggregates and behave in a prion-like manner. This report challenges the ongoing "prion p53" hypothesis by reviewing evidence of p53 behavior in light of our current knowledge regarding amyloid proteins, prionoids and prions.
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Affiliation(s)
| | - Gaëlle Friocourt
- Inserm, Université de Bretagne Occidentale, EFS, UMR 1078, GGB, F-29200 Brest, France;
| | - Pierre Roux
- CRBM, CNRS, UMR5234, 34293 Montpellier, France;
| | - Cécile Voisset
- Inserm, Université de Bretagne Occidentale, EFS, UMR 1078, GGB, F-29200 Brest, France;
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18
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Madden PW, Klyubin I, Ahearne MJ. Silk fibroin safety in the eye: a review that highlights a concern. BMJ Open Ophthalmol 2020; 5:e000510. [PMID: 33024827 PMCID: PMC7513638 DOI: 10.1136/bmjophth-2020-000510] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/15/2020] [Accepted: 08/07/2020] [Indexed: 12/25/2022] Open
Abstract
The biomedical use of silk as a suture dates back to antiquity. Fibroin is the structural element that determines the strength of silk and here we consider the safety of fibroin in its role in ophthalmology. The high mechanical strength of silk meant sufficiently thin threads could be made for eye microsurgery, but such usage was all but superseded by synthetic polymer sutures, primarily because silk in its entirety was more inflammatory. Significant immunological response can normally be avoided by careful manufacturing to provide high purity fibroin, and it has been utilised in this form for tissue engineering an array of fibre and film substrata deployed in research with cells of the eye. Films of fibroin can also be made transparent, which is a required property in the visual pathway. Transparent layers of corneal epithelial, stromal and endothelial cells have all been demonstrated with maintenance of phenotype, as have constructs supporting retinal cells. Fibroin has a lack of demonstrable infectious agent transfer, an ability to be sterilised and prepared with minimal contamination, long-term predictable degradation and low direct cytotoxicity. However, there remains a known ability to be involved in amyloid formation and potential amyloidosis which, without further examination, is enough to currently question whether fibroin should be employed in the eye given its innervation into the brain.
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Affiliation(s)
- Peter W Madden
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Department of Mechanical, Manufacturing and Biomedical Engineering, School of Engineering, Trinity College Dublin, the University of Dublin, Dublin, Ireland
| | - Igor Klyubin
- Department of Pharmacology Therapeutics, School of Medicine, Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Institute of Neuroscience, Trinity College Dublin, the University of Dublin, Dublin, Ireland
| | - Mark J Ahearne
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, the University of Dublin, Dublin, Ireland
- Department of Mechanical, Manufacturing and Biomedical Engineering, School of Engineering, Trinity College Dublin, the University of Dublin, Dublin, Ireland
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19
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Abstract
Nine cases of amyloidosis in caracals (Caracal caracal) from three different institutions in Europe were reviewed and evaluated histopathologically. The six males and three females died between 2008 and 2018 at an age of 6 yr ± 2.5 mo (median ± interquartile range). In two out of nine (2/9) animals, amyloidosis was an incidental postmortem finding; the animals died of bronchopneumonia and gastric ulceration due to Helicobacter spp., respectively. Seven (7/9) animals suffered from acute renal failure due to amyloidosis, one of them additionally of cardiac decompensation. The predominant clinical signs were weight loss, lethargy, dys- or anorexia, dehydration, increased BUN and creatinine, and azotemia. The main gross lesion was a pale renal cortex on cut surface; in two animals, the kidneys appeared enlarged. Histologically, glomerular amyloid was present in every animal (9/9), and was the predominant renal manifestation of amyloidosis. Additional findings included splenic amyloid (8/8), amyloid in the lamina propria of the intestine (5/5), and amyloid in the lingual submucosa (4/4). Gastric mineralization was present in four animals suffering from renal failure. In the animal dying from bronchopneumonia, severe pancreatic amyloid deposits mainly affecting the exocrine pancreas (1/5) were identified. Immunohistochemistry was employed to identify amyloid AA in eight cases; only in the caracal dying from bronchopneumonia AA was amyloid confirmed. In several organs, especially in those where only small amyloid deposits were detected, a Congo red stain was often necessary to confirm the deposition. The etiology of the amyloidosis remains unknown. Three caracals were related within two generations, another three within four generations, so one might hypothesize a familial trait. In conclusion, amyloidosis should be considered as a significant disease in the caracal. Particularly in cases with renal disease, it should be included as a major differential diagnosis.
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20
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Lin X, Galaqin N, Tainaka R, Shimamori K, Kuragano M, Noguchi TQP, Tokuraku K. Real-Time 3D Imaging and Inhibition Analysis of Various Amyloid Aggregations Using Quantum Dots. Int J Mol Sci 2020; 21:E1978. [PMID: 32183170 PMCID: PMC7139405 DOI: 10.3390/ijms21061978] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/01/2020] [Accepted: 03/11/2020] [Indexed: 02/07/2023] Open
Abstract
Amyloidosis refers to aggregates of protein that accumulate and are deposited as amyloid fibrils into plaques. When these are detected in organs, they are the main hallmark of Alzheimer's disease, Parkinson's disease, and other related diseases. Recent medical advances have shown that many precursors and proteins can induce amyloidosis even though the mechanism of amyloid aggregation and the relationship of these proteins to amyloidosis remains mostly unclear. In this study, we report the real-time 3D-imaging and inhibition analysis of amyloid β (Aβ), tau, and α-synuclein aggregation utilizing the affinity between quantum dots (QD) and amyloid aggregates. We successfully visualized these amyloid aggregations in real-time using fluorescence microscopy and confocal microscopy simply by adding commercially available QD. The observation by transmission electron microscopy (TEM) showed that QD particles bound to all amyloid fibrils. The 3D-imaging with QD revealed differences between amyloid aggregates composed of different amyloid peptides that could not be detected by TEM. We were also able to quantify the inhibition activities of these proteins by rosmarinic acid, which has high activity for Aβ aggregation, from fluorescence micrographs as half-maximal effective concentrations. These imaging techniques with QD serve as quick, easy, and powerful tools to understand amyloidosis and to discover drugs for therapies.
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Affiliation(s)
- Xuguang Lin
- Department of Applied Science and Engineering, Muroran Institute of Technology, Muroran 050-8585, Japan; (X.L.); (N.G.); (R.T.); (K.S.); (M.K.)
| | - Nuomin Galaqin
- Department of Applied Science and Engineering, Muroran Institute of Technology, Muroran 050-8585, Japan; (X.L.); (N.G.); (R.T.); (K.S.); (M.K.)
| | - Reina Tainaka
- Department of Applied Science and Engineering, Muroran Institute of Technology, Muroran 050-8585, Japan; (X.L.); (N.G.); (R.T.); (K.S.); (M.K.)
| | - Keiya Shimamori
- Department of Applied Science and Engineering, Muroran Institute of Technology, Muroran 050-8585, Japan; (X.L.); (N.G.); (R.T.); (K.S.); (M.K.)
| | - Masahiro Kuragano
- Department of Applied Science and Engineering, Muroran Institute of Technology, Muroran 050-8585, Japan; (X.L.); (N.G.); (R.T.); (K.S.); (M.K.)
| | - Taro Q. P. Noguchi
- Department of Chemical Science and Engineering, National Institute of Technology, Miyakonojo College, Miyakonojo 885-8567, Japan;
| | - Kiyotaka Tokuraku
- Department of Applied Science and Engineering, Muroran Institute of Technology, Muroran 050-8585, Japan; (X.L.); (N.G.); (R.T.); (K.S.); (M.K.)
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21
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Liberta F, Rennegarbe M, Rösler R, Bijzet J, Wiese S, Hazenberg BPC, Fändrich M. Morphological and primary structural consistency of fibrils from different AA patients (common variant). Amyloid 2019; 26:164-170. [PMID: 31240945 DOI: 10.1080/13506129.2019.1628015] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Aims: To test the hypothesis that the fibril morphology and the fibril protein primary structure are conserved across different patients suffering from the common variant of systemic Amyloid A (AA) amyloidosis. Methods: Amyloid fibrils were extracted from the renal tissue of four patients. The fibril morphology was analysed in negatively stained samples with transmission electron microscopy (TEM). The fibril protein identity and fragment length were determined by using mass spectrometry. Results: The fibrils show a consistent morphology in all four patients and exhibit an average width of ∼9.6 nm and an average pitch of ∼112 nm. All fibrils are composed of polypeptide chains that can be assigned to human serum amyloid A (SAA) 1.1 protein. All fragments lack the N-terminal arginine residue and are C-terminally truncated. Differences exist concerning the exact C-terminal cleavage site. The most prominent cleavage site occurs at residues 64-67. Conclusions: Our data demonstrate that AA amyloid fibrils are consistent at the level of the protein primary structure and fibril morphology in the four analysed patients.
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Affiliation(s)
- Falk Liberta
- a Institute of Protein Biochemistry, Ulm University , Ulm , Germany
| | | | - Reinhild Rösler
- b Core Unit Mass Spectrometry and Proteomics, Ulm University , Ulm , Germany
| | - Johan Bijzet
- c Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
| | - Sebastian Wiese
- b Core Unit Mass Spectrometry and Proteomics, Ulm University , Ulm , Germany
| | - Bouke P C Hazenberg
- c Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
| | - Marcus Fändrich
- a Institute of Protein Biochemistry, Ulm University , Ulm , Germany
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22
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Miyoshi T, Ono A, Shimada K, Murakami T. Experimental model of oral transmissible AA amyloidosis in quails. Avian Pathol 2019; 48:521-527. [PMID: 31199679 DOI: 10.1080/03079457.2019.1632414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
In poultry and zoo birds, mass outbreaks of amyloid A (AA) amyloidosis are often reported, and horizontal transmission is considered as one of the causes. However, oral transmission of avian AA amyloidosis in nature has been unclear. In order to clarify the horizontal transmission of avian AA amyloidosis, basic research using an appropriate oral transmission model is necessary. In this study, we developed an oral transmission model of AA amyloidosis using quails, and assessed the oral transmission efficiency of AA amyloidosis in quails and mice. Young quails, adult quails, and young mice received inflammatory stimulation with lipopolysaccharide; simultaneously, homogeneous amyloid fibrils were orally or intravenously administered. By histological examination, induction of amyloidosis by oral or intravenous administration of amyloid was confirmed in all species. Furthermore, both quail and murine AA amyloidosis were orally transmitted in a dose-dependent manner. These results support the possibility of horizontal transmission of avian AA amyloidosis in nature. This model will be able to contribute to the elucidation of spontaneous horizontal transmission of avian AA amyloidosis in the future. RESEARCH HIGHLIGHTS Quail AA amyloidosis was orally transmitted in a dose-dependent manner. Oral transmission was less efficient than intravenous transmission. In-cage horizontal transmission did not occur during 4-week cohabitation. Amyloid deposition in tissues of quail was grossly visible.
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Affiliation(s)
- Tomoyuki Miyoshi
- Laboratory of Veterinary Toxicology, Cooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology , Tokyo , Japan
| | - Ayumi Ono
- Laboratory of Veterinary Toxicology, Cooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology , Tokyo , Japan
| | - Kazumi Shimada
- Laboratory of Veterinary Surgery, Cooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology , Tokyo , Japan
| | - Tomoaki Murakami
- Laboratory of Veterinary Toxicology, Cooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology , Tokyo , Japan
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23
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Abstract
Prion diseases are progressive, incurable and fatal neurodegenerative conditions. The term 'prion' was first nominated to express the revolutionary concept that a protein could be infectious. We now know that prions consist of PrPSc, the pathological aggregated form of the cellular prion protein PrPC. Over the years, the term has been semantically broadened to describe aggregates irrespective of their infectivity, and the prion concept is now being applied, perhaps overenthusiastically, to all neurodegenerative diseases that involve protein aggregation. Indeed, recent studies suggest that prion diseases (PrDs) and protein misfolding disorders (PMDs) share some common disease mechanisms, which could have implications for potential treatments. Nevertheless, the transmissibility of bona fide prions is unique, and PrDs should be considered as distinct from other PMDs.
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Affiliation(s)
- Claudia Scheckel
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Adriano Aguzzi
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland.
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24
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Cao Y, Mezzenga R. Food protein amyloid fibrils: Origin, structure, formation, characterization, applications and health implications. Adv Colloid Interface Sci 2019; 269:334-356. [PMID: 31128463 DOI: 10.1016/j.cis.2019.05.002] [Citation(s) in RCA: 237] [Impact Index Per Article: 47.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/30/2019] [Accepted: 05/01/2019] [Indexed: 01/27/2023]
Abstract
Amyloid fibrils have traditionally been considered only as pathological aggregates in human neurodegenerative diseases, but it is increasingly becoming clear that the propensity to form amyloid fibrils is a generic property for all proteins, including food proteins. Differently from the pathological amyloid fibrils, those derived from food proteins can be used as advanced materials in biomedicine, tissue engineering, environmental science, nanotechnology, material science as well as in food science, owing to a combination of highly desirable feature such as extreme aspect ratios, outstanding stiffness and a broad availability of functional groups on their surfaces. In food science, protein fibrillization is progressively recognized as an appealing strategy to broaden and improve food protein functionality. This review article discusses the various classes of reported food protein amyloid fibrils and their formation conditions. It furthermore considers amyloid fibrils in a broad context, from their structural characterization to their forming mechanisms and ensued physical properties, emphasizing their applications in food-related fields. Finally, the biological fate and the potential toxicity mechanisms of food amyloid fibrils are discussed, and an experimental protocol for their health safety validation is proposed in the concluding part of the review.
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Affiliation(s)
- Yiping Cao
- Food and Soft Materials, Institute of Food, Nutrition and Health, ETH Zurich, Schmelzbergstrasse 9, Zurich 8092, Switzerland
| | - Raffaele Mezzenga
- Food and Soft Materials, Institute of Food, Nutrition and Health, ETH Zurich, Schmelzbergstrasse 9, Zurich 8092, Switzerland.
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25
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Chabert M, Rousset X, Colombat M, Lacasa M, Kakanakou H, Bourderioux M, Brousset P, Burlet-Schiltz O, Liepnieks JJ, Kluve-Beckerman B, Lambert G, Châtelet FP, Benson MD, Kalopissis AD. A transgenic mouse model reproduces human hereditary systemic amyloidosis. Kidney Int 2019; 96:628-641. [PMID: 31200944 DOI: 10.1016/j.kint.2019.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 03/12/2019] [Accepted: 03/14/2019] [Indexed: 10/27/2022]
Abstract
Amyloidoses are rare life-threatening diseases caused by protein misfolding of normally soluble proteins. The fatal outcome is predominantly due to renal failure and/or cardiac dysfunction. Because amyloid fibrils formed by all amyloidogenic proteins share structural similarity, amyloidoses may be studied in transgenic models expressing any amyloidogenic protein. Here we generated transgenic mice expressing an amyloidogenic variant of human apolipoprotein AII, a major protein of high density lipoprotein. According to amyloid nomenclature this variant was termed STOP78SERApoAII. STOP78SER-APOA2 expression at the physiological level spontaneously induced systemic amyloidosis in all mice with full-length mature STOP78SER-ApoAII identified as the amyloidogenic protein. Amyloid deposits stained with Congo red were extracellular, and consisted of fibrils of approximately 10 nm diameter. Renal glomerular amyloidosis was a major feature with onset of renal insufficiency occurring in mice older than six months of age. The liver, heart and spleen were also greatly affected. Expression of STOP78SER-APOA2 in the liver and intestine in mice of the K line but not in other amyloid-laden organs showed they present systemic amyloidosis. The amyloid burden was a function of STOP78SER-APOA2 expression and age of the mice with amyloid deposition starting in two-month-old high-expressing mice that died from six months onwards. Because STOP78SER-ApoAII conserved adequate lipid binding capacity as shown by high STOP78SER-ApoAII amounts in high density lipoprotein of young mice, its decrease in circulation with age suggests preferential deposition into preformed fibrils. Thus, our mouse model faithfully reproduces early-onset hereditary systemic amyloidosis and is ideally suited to devise and test novel therapies.
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Affiliation(s)
- Michèle Chabert
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France; EPHE PSL, Paris, France
| | - Xavier Rousset
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Magali Colombat
- Centre Hospitalo-Universitaire (CHU), Département d'Anatomopathologie, Toulouse, France
| | - Michel Lacasa
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Hermine Kakanakou
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Mathilde Bourderioux
- Centre Hospitalo-Universitaire (CHU), Département d'Anatomopathologie, Toulouse, France
| | - Pierre Brousset
- Centre Hospitalo-Universitaire (CHU), Département d'Anatomopathologie, Toulouse, France
| | - Odile Burlet-Schiltz
- CNRS, Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, Toulouse, France
| | - Juris J Liepnieks
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Barbara Kluve-Beckerman
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Gilles Lambert
- Inserm UMRS 1188 DéTROI, Université de La Réunion, Sainte Clotilde, France
| | - François P Châtelet
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Merrill D Benson
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Athina D Kalopissis
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France.
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Cryo-EM fibril structures from systemic AA amyloidosis reveal the species complementarity of pathological amyloids. Nat Commun 2019; 10:1104. [PMID: 30846696 PMCID: PMC6405766 DOI: 10.1038/s41467-019-09033-z] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 02/13/2019] [Indexed: 02/02/2023] Open
Abstract
Systemic AA amyloidosis is a worldwide occurring protein misfolding disease of humans and animals. It arises from the formation of amyloid fibrils from the acute phase protein serum amyloid A. Here, we report the purification and electron cryo-microscopy analysis of amyloid fibrils from a mouse and a human patient with systemic AA amyloidosis. The obtained resolutions are 3.0 Å and 2.7 Å for the murine and human fibril, respectively. The two fibrils differ in fundamental properties, such as presence of right-hand or left-hand twisted cross-β sheets and overall fold of the fibril proteins. Yet, both proteins adopt highly similar β-arch conformations within the N-terminal ~21 residues. Our data demonstrate the importance of the fibril protein N-terminus for the stability of the analyzed amyloid fibril morphologies and suggest strategies of combating this disease by interfering with specific fibril polymorphs. Systemic AA amyloidosis is caused by misfolding of the acute phase protein serum amyloid A1. Here the authors present the cryo-EM structures of murine and human AA amyloid fibrils that were isolated from tissue samples and describe how the fibrils differ in their fundamental structural properties.
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27
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Vahdat Shariat Panahi A, Hultman P, Öllinger K, Westermark GT, Lundmark K. Lipid membranes accelerate amyloid formation in the mouse model of AA amyloidosis. Amyloid 2019; 26:34-44. [PMID: 30929476 DOI: 10.1080/13506129.2019.1576606] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
INTRODUCTION AA amyloidosis develops as a result of prolonged inflammation and is characterized by deposits of N-terminal proteolytic fragments of the acute phase reactant serum amyloid A (SAA). Macrophages are usually found adjacent to amyloid, suggesting their involvement in the formation and/or degradation of the amyloid fibrils. Furthermore, accumulating evidence suggests that lipid membranes accelerate the fibrillation of different amyloid proteins. METHODS Using an experimental mouse model of AA amyloidosis, we compared the amyloidogenic effect of liposomes and/or amyloid-enhancing factor (AEF). Inflammation was induced by subcutaneous injection of silver nitrate followed by intravenous injection of liposomes and/or AEF to accelerate amyloid formation. RESULTS We showed that liposomes accelerate amyloid formation in inflamed mice, but the amyloidogenic effect of liposomes was weaker compared with AEF. Regardless of the induction method, amyloid deposits were mainly found in the marginal zones of the spleen and coincided with the depletion of marginal zone macrophages, while red pulp macrophages and metallophilic marginal zone macrophages proved insensitive to amyloid deposition. CONCLUSIONS We conclude that increased intracellular lipid content facilitates AA amyloid fibril formation and show that the mouse model of AA amyloidosis is a suitable system for further mechanistic studies.
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Affiliation(s)
- Aida Vahdat Shariat Panahi
- a Experimental Pathology, Department of Clinical and Experimental Medicine , Linköping University , Linköping , Sweden.,b Departments of Clinical Pathology and Clinical and Experimental Medicine , Linköping University , Linköping , Sweden
| | - Per Hultman
- c Molecular and Immunological Pathology, Department of Clinical and Experimental Medicine , Linköping University , Linköping , Sweden
| | - Karin Öllinger
- a Experimental Pathology, Department of Clinical and Experimental Medicine , Linköping University , Linköping , Sweden
| | | | - Katarzyna Lundmark
- a Experimental Pathology, Department of Clinical and Experimental Medicine , Linköping University , Linköping , Sweden.,b Departments of Clinical Pathology and Clinical and Experimental Medicine , Linköping University , Linköping , Sweden
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Abstract
The cellular prion protein, PrPC, is a small, cell surface glycoprotein with a function that is currently somewhat ill defined. It is also the key molecule involved in the family of neurodegenerative disorders called transmissible spongiform encephalopathies, which are also known as prion diseases. The misfolding of PrPC to a conformationally altered isoform, designated PrPTSE, is the main molecular process involved in pathogenesis and appears to precede many other pathologic and clinical manifestations of disease, including neuronal loss, astrogliosis, and cognitive loss. PrPTSE is also believed to be the major component of the infectious "prion," the agent responsible for disease transmission, and preparations of this protein can cause prion disease when inoculated into a naïve host. Thus, understanding the biochemical and biophysical properties of both PrPC and PrPTSE, and ultimately the mechanisms of their interconversion, is critical if we are to understand prion disease biology. Although entire books could be devoted to research pertaining to the protein, herein we briefly review the state of knowledge of prion biochemistry, including consideration of prion protein structure, function, misfolding, and dysfunction.
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Affiliation(s)
- Andrew C Gill
- School of Chemistry, Joseph Banks Laboratories, University of Lincoln, Lincoln, United Kingdom; Division of Neurobiology, The Roslin Institute and Royal (Dick) School of Veterinary Sciences, University of Edinburgh, Edinburgh, United Kingdom.
| | - Andrew R Castle
- Division of Neurobiology, The Roslin Institute and Royal (Dick) School of Veterinary Sciences, University of Edinburgh, Edinburgh, United Kingdom
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29
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Kell DB, Pretorius E. No effects without causes: the Iron Dysregulation and Dormant Microbes hypothesis for chronic, inflammatory diseases. Biol Rev Camb Philos Soc 2018; 93:1518-1557. [PMID: 29575574 PMCID: PMC6055827 DOI: 10.1111/brv.12407] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 02/12/2018] [Accepted: 02/15/2018] [Indexed: 12/11/2022]
Abstract
Since the successful conquest of many acute, communicable (infectious) diseases through the use of vaccines and antibiotics, the currently most prevalent diseases are chronic and progressive in nature, and are all accompanied by inflammation. These diseases include neurodegenerative (e.g. Alzheimer's, Parkinson's), vascular (e.g. atherosclerosis, pre-eclampsia, type 2 diabetes) and autoimmune (e.g. rheumatoid arthritis and multiple sclerosis) diseases that may appear to have little in common. In fact they all share significant features, in particular chronic inflammation and its attendant inflammatory cytokines. Such effects do not happen without underlying and initially 'external' causes, and it is of interest to seek these causes. Taking a systems approach, we argue that these causes include (i) stress-induced iron dysregulation, and (ii) its ability to awaken dormant, non-replicating microbes with which the host has become infected. Other external causes may be dietary. Such microbes are capable of shedding small, but functionally significant amounts of highly inflammagenic molecules such as lipopolysaccharide and lipoteichoic acid. Sequelae include significant coagulopathies, not least the recently discovered amyloidogenic clotting of blood, leading to cell death and the release of further inflammagens. The extensive evidence discussed here implies, as was found with ulcers, that almost all chronic, infectious diseases do in fact harbour a microbial component. What differs is simply the microbes and the anatomical location from and at which they exert damage. This analysis offers novel avenues for diagnosis and treatment.
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Affiliation(s)
- Douglas B. Kell
- School of ChemistryThe University of Manchester, 131 Princess StreetManchesterLancsM1 7DNU.K.
- The Manchester Institute of BiotechnologyThe University of Manchester, 131 Princess StreetManchesterLancsM1 7DNU.K.
- Department of Physiological SciencesStellenbosch University, Stellenbosch Private Bag X1Matieland7602South Africa
| | - Etheresia Pretorius
- Department of Physiological SciencesStellenbosch University, Stellenbosch Private Bag X1Matieland7602South Africa
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30
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Fändrich M, Nyström S, Nilsson KPR, Böckmann A, LeVine H, Hammarström P. Amyloid fibril polymorphism: a challenge for molecular imaging and therapy. J Intern Med 2018; 283:218-237. [PMID: 29360284 PMCID: PMC5820168 DOI: 10.1111/joim.12732] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The accumulation of misfolded proteins (MPs), both unique and common, for different diseases is central for many chronic degenerative diseases. In certain patients, MP accumulation is systemic (e.g. TTR amyloid), and in others, this is localized to a specific cell type (e.g. Alzheimer's disease). In neurodegenerative diseases, NDs, it is noticeable that the accumulation of MP progressively spreads throughout the nervous system. Our main hypothesis of this article is that MPs are not only markers but also active carriers of pathogenicity. Here, we discuss studies from comprehensive molecular approaches aimed at understanding MP conformational variations (polymorphism) and their bearing on spreading of MPs, MP toxicity, as well as MP targeting in imaging and therapy. Neurodegenerative disease (ND) represents a major and growing societal challenge, with millions of people worldwide suffering from Alzheimer's or Parkinson's diseases alone. For all NDs, current treatment is palliative without addressing the primary cause and is not curative. Over recent years, particularly the shape-shifting properties of misfolded proteins and their spreading pathways have been intensively researched. The difficulty in addressing ND has prompted most major pharma companies to severely downsize their nervous system disorder research. Increased academic research is pivotal for filling this void and to translate basic research into tools for medical professionals. Recent discoveries of targeting drug design against MPs and improved model systems to study structure, pathology spreading and toxicity strongly encourage future studies along these lines to provide an opportunity for selective imaging, prognostic diagnosis and therapy.
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Affiliation(s)
- Marcus Fändrich
- Institute of Protein Biochemistry, Ulm University, Ulm, Germany
| | - Sofie Nyström
- Department of Physics, Chemistry and Biology, division of Chemistry, Linköping University, Linköping, Sweden
| | - K. Peter R. Nilsson
- Department of Physics, Chemistry and Biology, division of Chemistry, Linköping University, Linköping, Sweden
| | - Anja Böckmann
- Institut de Biologie et Chimie des Protéines, Bases Moléculaires et Structurales des Systèmes Infectieux, Labex Ecofect, UMR 5086 CNRS, Université de Lyon, 7 passage du Vercors, 69367 Lyon, France
| | - Harry LeVine
- Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, USA; Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY, USA
| | - Per Hammarström
- Department of Physics, Chemistry and Biology, division of Chemistry, Linköping University, Linköping, Sweden
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31
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Post mortem findings and their relation to AA amyloidosis in free-ranging Herring gulls (Larus argentatus). PLoS One 2018; 13:e0193265. [PMID: 29494674 PMCID: PMC5832234 DOI: 10.1371/journal.pone.0193265] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 02/07/2018] [Indexed: 11/19/2022] Open
Abstract
Since the late 1990s, high mortality and declining populations have been reported among sea birds including Herring gulls (Larus argentatus) from the Baltic Sea area in Northern Europe. Repeated BoNT type C/D botulism outbreaks have occurred, but it remains unclear whether this is the sole and primary cause of mortality. Thiamine deficiency has also been suggested as a causal or contributing factor. With this study, we aimed to investigate gross and microscopic pathology in Herring gulls from affected breeding sites in Sweden in search of contributing diseases. Herring gulls from Iceland served as controls. Necropsies and histopathology were performed on 75 birds, of which 12 showed signs of disease at the time of necropsy. Parasites of various classes and tissues were commonly observed independent of host age, e.g. oesophageal capillariosis and nematode infection in the proventriculus and gizzard with severe inflammation, air sac larid pentastomes and bursal trematodiasis in pre-fledglings. Gross and microscopic findings are described. Notably, amyloidosis was diagnosed in 93 and 33% of the adult birds from Sweden and Iceland, respectively (p<0.001), with more pronounced deposits in Swedish birds (p<0.001). Gastrointestinal deposits were observed in the walls of arteries or arterioles, and occasionally in villi near the mucosal surface. Amyloid was identified within the intestinal lumen in one severely affected gull suggesting the possibility of oral seeding and the existence of a primed state as previously described in some mammals and chickens. This could speculatively explain the high occurrence and previously reported rapid onset of amyloidosis upon inflammation or captivity in Herring gulls. Amyloid-induced malabsorbtion is also a possibility. The Herring gull SAA/AA protein sequence was shown to be highly conserved but differed at the N-terminus from other avian species.
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32
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Westermark GT, Fändrich M, Lundmark K, Westermark P. Noncerebral Amyloidoses: Aspects on Seeding, Cross-Seeding, and Transmission. Cold Spring Harb Perspect Med 2018; 8:a024323. [PMID: 28108533 PMCID: PMC5749146 DOI: 10.1101/cshperspect.a024323] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
More than 30 proteins form amyloid in humans, most of them outside of the brain. Deposition of amyloid in extracerebral tissues is very common and seems inevitable for an aging person. Most deposits are localized, small, and probably without consequence, but in some instances, they are associated with diseases such as type 2 diabetes. Other extracerebral amyloidoses are systemic, with life-threatening effects on the heart, kidneys, and other organs. Here, we review how amyloid may spread through seeding and whether transmission of amyloid diseases may occur between humans. We also discuss whether cross-seeding is important in the development of amyloidosis, focusing specifically on the amyloid proteins AA, transthyretin, and islet amyloid polypeptide (IAPP).
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Affiliation(s)
- Gunilla T Westermark
- Department of Medical Cell Biology, Uppsala University, SE-751 23 Uppsala, Sweden
| | - Marcus Fändrich
- Institute of Protein Biochemistry, Ulm University, D-89081 Ulm, Germany
| | - Katarzyna Lundmark
- Department of Clinical Pathology and Clinical Genetics, and Department of Clinical and Experimental Medicine, Linköping University, SE-581 85 Linköping, Sweden
| | - Per Westermark
- Department of Immunology, Genetics and Pathology, Uppsala University, SE-751 85 Uppsala, Sweden
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33
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Abstract
Senile plaques and neurofibrillary tangles are the principal histopathologic hallmarks of Alzheimer disease. The essential constituents of these lesions are structurally abnormal variants of normally generated proteins: Aβ protein in plaques and tau protein in tangles. At the molecular level, both proteins in a pathogenic state share key properties with classic prions, i.e., they consist of alternatively folded, β-sheet-rich forms of the proteins that autopropagate by the seeded corruption and self-assembly of like proteins. Other similarities with prions include the ability to manifest as polymorphic and polyfunctional strains, resistance to chemical and enzymatic destruction, and the ability to spread within the brain and from the periphery to the brain. In Alzheimer disease, current evidence indicates that the pathogenic cascade follows from the endogenous, sequential corruption of Aβ and then tau. Therapeutic options include reducing the production or multimerization of the proteins, uncoupling the Aβ-tauopathy connection, or promoting the inactivation or removal of anomalous assemblies from the brain. Although aberrant Aβ appears to be the prime mover of Alzheimer disease pathogenesis, once set in motion by Aβ, the prion-like propagation of tauopathy may proceed independently of Aβ; if so, Aβ might be solely targeted as an early preventive measure, but optimal treatment of Alzheimer disease at later stages of the cascade could require intervention in both pathways.
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Affiliation(s)
- Lary C Walker
- Department of Neurology and Yerkes National Primate Research Center, Emory University, Atlanta, GA, United States.
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34
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Ding X, Liu Y, Yang M, Li L, Miyahara H, Dai J, Xu Z, Matsumoto K, Mori M, Higuchi K, Sawashita J. Amyloidosis-inducing activity of blood cells in mouse AApoAII amyloidosis. Exp Anim 2017; 67:105-115. [PMID: 29081441 PMCID: PMC5955742 DOI: 10.1538/expanim.17-0082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Mouse senile amyloidosis is a disorder in which apolipoprotein A-II (APOA2) deposits as
amyloid fibrils (AApoAII) in many organs. We previously reported that AApoAII amyloidosis
can be transmitted by feces, milk, saliva and muscle originating from mice with amyloid
deposition. In this study, the ability of blood components to transmit amyloidosis was
evaluated in our model system. Blood samples were collected from
SAMR1.SAMP1-Apoa2c amyloid-laden or amyloidosis-negative
mice. The samples were fractionated into plasma, white blood cell (WBC) and red blood cell
(RBC) fractions. Portions of each were further separated into soluble and insoluble
fractions. These fractions were then injected into recipient mice to determine
amyloidosis-induction activities (AIA). The WBC and RBC fractions from amyloid-laden mice
but not from amyloidosis-negative mice induced AApoAII amyloid deposition in the
recipients. The AIA of WBC fraction could be attributed to AApoAII amyloid fibrils because
amyloid fibril-like materials and APOA2 antiserum-reactive proteins were observed in the
insoluble fraction of the blood cells. Unexpectedly, the plasma of AApoAII
amyloidosis-negative as well as amyloid-laden mice showed AIA, suggesting the presence of
substances in mouse plasma other than AApoAII fibrils that could induce amyloid
deposition. These results indicated that AApoAII amyloidosis could be transmitted across
tissues and between individuals through blood cells.
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Affiliation(s)
- Xin Ding
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan
| | - Yingye Liu
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan
| | - Mu Yang
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan
| | - Lin Li
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan
| | - Hiroki Miyahara
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan
| | - Jian Dai
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan
| | - Zhe Xu
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan
| | - Kiyoshi Matsumoto
- Division of Animal Research, Research Center for Supports to Advanced Science, Shinshu University, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan
| | - Masayuki Mori
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan.,Department of Advanced Medicine for Health Promotion, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan
| | - Keiichi Higuchi
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan.,Department of Biological Sciences for Intractable Neurological Diseases, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan
| | - Jinko Sawashita
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan.,Department of Biological Sciences for Intractable Neurological Diseases, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-1-1 Asahi, Matsumoto-shi, Nagano 390-8621, Japan
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Rising A, Cederlund E, Palmberg C, Uhlhorn H, Gaunitz S, Nordling K, Ågren E, Ihse E, Westermark GT, Tjernberg L, Jörnvall H, Johansson J, Westermark P. Systemic AA amyloidosis in the red fox (Vulpes vulpes). Protein Sci 2017; 26:2312-2318. [PMID: 28791746 DOI: 10.1002/pro.3264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 07/30/2017] [Accepted: 08/07/2017] [Indexed: 12/14/2022]
Abstract
Amyloid A (AA) amyloidosis occurs spontaneously in many mammals and birds, but the prevalence varies considerably among different species, and even among subgroups of the same species. The Blue fox and the Gray fox seem to be resistant to the development of AA amyloidosis, while Island foxes have a high prevalence of the disease. Herein, we report on the identification of AA amyloidosis in the Red fox (Vulpes vulpes). Edman degradation and tandem MS analysis of proteolyzed amyloid protein revealed that the amyloid partly was composed of full-length SAA. Its amino acid sequence was determined and found to consist of 111 amino acid residues. Based on inter-species sequence comparisons we found four residue exchanges (Ser31, Lys63, Leu71, Lys72) between the Red and Blue fox SAAs. Lys63 seems unique to the Red fox SAA. We found no obvious explanation to how these exchanges might correlate with the reported differences in SAA amyloidogenicity. Furthermore, in contrast to fibrils from many other mammalian species, the isolated amyloid fibrils from Red fox did not seed AA amyloidosis in a mouse model.
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Affiliation(s)
- Anna Rising
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden.,Department of Neurobiology, Care Sciences and Society (NVS), Center for Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, Huddinge, 141 57, Sweden
| | - Ella Cederlund
- Department of Medical Biochemistry and Biophysics (MBB), Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Carina Palmberg
- Center of Proteomics Karolinska (PKKI), Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Henrik Uhlhorn
- Department of Pathology and Wildlife Diseases, National Veterinary Institute (SVA), Uppsala, 751 89, Sweden
| | - Stefan Gaunitz
- Department of Neurobiology, Care Sciences and Society (NVS), Center for Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, Huddinge, 141 57, Sweden
| | - Kerstin Nordling
- Department of Neurobiology, Care Sciences and Society (NVS), Center for Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, Huddinge, 141 57, Sweden
| | - Erik Ågren
- Department of Pathology and Wildlife Diseases, National Veterinary Institute (SVA), Uppsala, 751 89, Sweden
| | - Elisabet Ihse
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, 751 85, Sweden
| | | | - Lars Tjernberg
- Department of Neurobiology, Care Sciences and Society (NVS), Center for Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, Huddinge, 141 57, Sweden
| | - Hans Jörnvall
- Department of Medical Biochemistry and Biophysics (MBB), Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Jan Johansson
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden.,Department of Neurobiology, Care Sciences and Society (NVS), Center for Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, Huddinge, 141 57, Sweden
| | - Per Westermark
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, 751 85, Sweden
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36
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Mukherjee A, Morales-Scheihing D, Salvadores N, Moreno-Gonzalez I, Gonzalez C, Taylor-Presse K, Mendez N, Shahnawaz M, Gaber AO, Sabek OM, Fraga DW, Soto C. Induction of IAPP amyloid deposition and associated diabetic abnormalities by a prion-like mechanism. J Exp Med 2017; 214:2591-2610. [PMID: 28765400 PMCID: PMC5584114 DOI: 10.1084/jem.20161134] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 03/24/2017] [Accepted: 06/19/2017] [Indexed: 12/12/2022] Open
Abstract
In this article, Mukherjee et al. show that the pathologic and clinical alterations of type 2 diabetes can be induced in vitro and in vivo by prion-like transmission of IAPP misfolded aggregates, supporting an important role for IAPP aggregation in the disease. Although a large proportion of patients with type 2 diabetes (T2D) accumulate misfolded aggregates composed of the islet amyloid polypeptide (IAPP), its role in the disease is unknown. Here, we show that pancreatic IAPP aggregates can promote the misfolding and aggregation of endogenous IAPP in islet cultures obtained from transgenic mouse or healthy human pancreas. Islet homogenates immunodepleted with anti-IAPP–specific antibodies were not able to induce IAPP aggregation. Importantly, intraperitoneal inoculation of pancreatic homogenates containing IAPP aggregates into transgenic mice expressing human IAPP dramatically accelerates IAPP amyloid deposition, which was accompanied by clinical abnormalities typical of T2D, including hyperglycemia, impaired glucose tolerance, and a substantial reduction on β cell number and mass. Finally, induction of IAPP deposition and diabetic abnormalities were also induced in vivo by administration of IAPP aggregates prepared in vitro using pure, synthetic IAPP. Our findings suggest that some of the pathologic and clinical alterations of T2D might be transmissible through a similar mechanism by which prions propagate in prion diseases.
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Affiliation(s)
- Abhisek Mukherjee
- Mitchell Center for Alzheimer's Disease, Department of Neurology, John P. and Kathrine G. McGovern Medical School, University of Texas Medical School at Houston, Houston, TX
| | - Diego Morales-Scheihing
- Mitchell Center for Alzheimer's Disease, Department of Neurology, John P. and Kathrine G. McGovern Medical School, University of Texas Medical School at Houston, Houston, TX.,Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
| | - Natalia Salvadores
- Mitchell Center for Alzheimer's Disease, Department of Neurology, John P. and Kathrine G. McGovern Medical School, University of Texas Medical School at Houston, Houston, TX.,Center for Integrative Biology, Universidad Mayor, Santiago, Chile
| | - Ines Moreno-Gonzalez
- Mitchell Center for Alzheimer's Disease, Department of Neurology, John P. and Kathrine G. McGovern Medical School, University of Texas Medical School at Houston, Houston, TX
| | - Cesar Gonzalez
- Mitchell Center for Alzheimer's Disease, Department of Neurology, John P. and Kathrine G. McGovern Medical School, University of Texas Medical School at Houston, Houston, TX
| | - Kathleen Taylor-Presse
- Mitchell Center for Alzheimer's Disease, Department of Neurology, John P. and Kathrine G. McGovern Medical School, University of Texas Medical School at Houston, Houston, TX
| | - Nicolas Mendez
- Mitchell Center for Alzheimer's Disease, Department of Neurology, John P. and Kathrine G. McGovern Medical School, University of Texas Medical School at Houston, Houston, TX
| | - Mohammad Shahnawaz
- Mitchell Center for Alzheimer's Disease, Department of Neurology, John P. and Kathrine G. McGovern Medical School, University of Texas Medical School at Houston, Houston, TX
| | - A Osama Gaber
- Department of Surgery, Houston Methodist Hospital, Houston, TX
| | - Omaima M Sabek
- Department of Surgery, Houston Methodist Hospital, Houston, TX
| | - Daniel W Fraga
- Department of Surgery, Houston Methodist Hospital, Houston, TX
| | - Claudio Soto
- Mitchell Center for Alzheimer's Disease, Department of Neurology, John P. and Kathrine G. McGovern Medical School, University of Texas Medical School at Houston, Houston, TX .,Facultad de Medicina, Universidad de los Andes, Las Condes, Santiago, Chile
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37
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Serum amyloid A forms stable oligomers that disrupt vesicles at lysosomal pH and contribute to the pathogenesis of reactive amyloidosis. Proc Natl Acad Sci U S A 2017; 114:E6507-E6515. [PMID: 28743750 DOI: 10.1073/pnas.1707120114] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Serum amyloid A (SAA) is an acute-phase plasma protein that functions in innate immunity and lipid homeostasis. SAA is a protein precursor of reactive AA amyloidosis, the major complication of chronic inflammation and one of the most common human systemic amyloid diseases worldwide. Most circulating SAA is protected from proteolysis and misfolding by binding to plasma high-density lipoproteins. However, unbound soluble SAA is intrinsically disordered and is either rapidly degraded or forms amyloid in a lysosome-initiated process. Although acidic pH promotes amyloid fibril formation by this and many other proteins, the molecular underpinnings are unclear. We used an array of spectroscopic, biochemical, and structural methods to uncover that at pH 3.5-4.5, murine SAA1 forms stable soluble oligomers that are maximally folded at pH 4.3 with ∼35% α-helix and are unusually resistant to proteolysis. In solution, these oligomers neither readily convert into mature fibrils nor bind lipid surfaces via their amphipathic α-helices in a manner typical of apolipoproteins. Rather, these oligomers undergo an α-helix to β-sheet conversion catalyzed by lipid vesicles and disrupt these vesicles, suggesting a membranolytic potential. Our results provide an explanation for the lysosomal origin of AA amyloidosis. They suggest that high structural stability and resistance to proteolysis of SAA oligomers at pH 3.5-4.5 help them escape lysosomal degradation, promote SAA accumulation in lysosomes, and ultimately damage cellular membranes and liberate intracellular amyloid. We posit that these soluble prefibrillar oligomers provide a missing link in our understanding of the development of AA amyloidosis.
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Cremades N, Dobson CM. The contribution of biophysical and structural studies of protein self-assembly to the design of therapeutic strategies for amyloid diseases. Neurobiol Dis 2017; 109:178-190. [PMID: 28709995 DOI: 10.1016/j.nbd.2017.07.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 06/26/2017] [Accepted: 07/10/2017] [Indexed: 01/26/2023] Open
Abstract
Many neurodegenerative disorders, including Alzheimer's, Parkinson's and the prion diseases, are characterized by a conformational conversion of normally soluble proteins or peptides into pathological species, by a process of misfolding and self-assembly that leads ultimately to the formation of amyloid fibrils. Recent studies support the idea that multiple intermediate species with a wide variety of degrees of neuronal toxicity are generated during such processes. The development of a high level of knowledge of the nature and structure of the pathogenic amyloid species would significantly enhance efforts to underline the molecular origins of these disorders and also to develop both accurate diagnoses and effective therapeutic interventions for these types of conditions. In this review, we discuss recent biophysical and structural information concerning different types of amyloid aggregates and the way in which such information can guide rational therapeutic approaches designed to target specific pathogenic events that occur during the development of these highly debilitating and increasingly common diseases.
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Affiliation(s)
- Nunilo Cremades
- Biocomputation and Complex Systems Physics Institute (BIFI)-Joint Unit BIFI-IQFR(CSIC), Universidad de Zaragoza, Zaragoza 50018, Spain.
| | - Christopher M Dobson
- Department of Chemistry, Centre for Misfolding Diseases, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
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Annamalai K, Liberta F, Vielberg MT, Close W, Lilie H, Gührs KH, Schierhorn A, Koehler R, Schmidt A, Haupt C, Hegenbart U, Schönland S, Schmidt M, Groll M, Fändrich M. Common Fibril Structures Imply Systemically Conserved Protein Misfolding Pathways In Vivo. Angew Chem Int Ed Engl 2017; 56:7510-7514. [DOI: 10.1002/anie.201701761] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 03/15/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Karthikeyan Annamalai
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Falk Liberta
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Marie-Theres Vielberg
- Center for Integrated Protein Science Munich (CIPSM); Technische Universität München, Department Chemie; 85748 Garching Germany
| | - William Close
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Hauke Lilie
- Institute for Biochemistry and Biotechnology/Technical Biochemistry; 06120 Halle (Saale) Germany
| | - Karl-Heinz Gührs
- CF Protemics; Leibniz Institute on Aging-, Fritz Lipmann Institute (FLI); Beutenbergstraße 11 07745 Jena Germany
| | - Angelika Schierhorn
- Institut für Biochemie und Biotechnologie; Serviceeinheit für Massenspektrometrie; 06120 Halle (Saale) Germany
| | - Rolf Koehler
- Institute of Human Genetics; Im Neuenheimer Feld 366 69120 Heidelberg Germany
| | - Andreas Schmidt
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Christian Haupt
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Ute Hegenbart
- Amyloidosis Center; Department of Internal Medicine V; Im Neuenheimer Feld 410 69120 Heidelberg Germany
| | - Stefan Schönland
- Amyloidosis Center; Department of Internal Medicine V; Im Neuenheimer Feld 410 69120 Heidelberg Germany
| | - Matthias Schmidt
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Michael Groll
- Center for Integrated Protein Science Munich (CIPSM); Technische Universität München, Department Chemie; 85748 Garching Germany
| | - Marcus Fändrich
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
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40
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Annamalai K, Liberta F, Vielberg MT, Close W, Lilie H, Gührs KH, Schierhorn A, Koehler R, Schmidt A, Haupt C, Hegenbart U, Schönland S, Schmidt M, Groll M, Fändrich M. Common Fibril Structures Imply Systemically Conserved Protein Misfolding Pathways In Vivo. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701761] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Karthikeyan Annamalai
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Falk Liberta
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Marie-Theres Vielberg
- Center for Integrated Protein Science Munich (CIPSM); Technische Universität München, Department Chemie; 85748 Garching Germany
| | - William Close
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Hauke Lilie
- Institute for Biochemistry and Biotechnology/Technical Biochemistry; 06120 Halle (Saale) Germany
| | - Karl-Heinz Gührs
- CF Protemics; Leibniz Institute on Aging-, Fritz Lipmann Institute (FLI); Beutenbergstraße 11 07745 Jena Germany
| | - Angelika Schierhorn
- Institut für Biochemie und Biotechnologie; Serviceeinheit für Massenspektrometrie; 06120 Halle (Saale) Germany
| | - Rolf Koehler
- Institute of Human Genetics; Im Neuenheimer Feld 366 69120 Heidelberg Germany
| | - Andreas Schmidt
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Christian Haupt
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Ute Hegenbart
- Amyloidosis Center; Department of Internal Medicine V; Im Neuenheimer Feld 410 69120 Heidelberg Germany
| | - Stefan Schönland
- Amyloidosis Center; Department of Internal Medicine V; Im Neuenheimer Feld 410 69120 Heidelberg Germany
| | - Matthias Schmidt
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
| | - Michael Groll
- Center for Integrated Protein Science Munich (CIPSM); Technische Universität München, Department Chemie; 85748 Garching Germany
| | - Marcus Fändrich
- Institute of Protein Biochemistry; Ulm University; Helmholtzstrasse 8/1 89081 Ulm Germany
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41
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Claus S, Puscalau-Girtu I, Walther P, Syrovets T, Simmet T, Haupt C, Fändrich M. Cell-to-cell transfer of SAA1 protein in a cell culture model of systemic AA amyloidosis. Sci Rep 2017; 7:45683. [PMID: 28361953 PMCID: PMC5374501 DOI: 10.1038/srep45683] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 03/02/2017] [Indexed: 12/15/2022] Open
Abstract
Systemic AA amyloidosis arises from the misfolding of serum amyloid A1 (SAA1) protein and the deposition of AA amyloid fibrils at multiple sites within the body. Previous research already established that mononuclear phagocytes are crucial for the formation of the deposits in vivo and exposure of cultures of such cells to SAA1 protein induces the formation of amyloid deposits within the culture dish. In this study we show that both non-fibrillar and fibrillar SAA1 protein can be readily transferred between cultured J774A.1 cells, a widely used model of mononuclear phagocytes. We find that the exchange is generally faster with non-fibrillar SAA1 protein than with fibrils. Exchange is blocked if cells are separated by a membrane, while increasing the volume of cell culture medium had only small effects on the observed exchange efficiency. Taken together with scanning electron microscopy showing the presence of the respective types of physical interactions between the cultured cells, we conclude that the transfer of SAA1 protein depends on direct cell-to-cell contacts or tunneling nanotubes.
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Affiliation(s)
- Stephanie Claus
- Institute of Protein Biochemistry, Ulm University, Helmholtzstr. 8/1, 89081 Ulm, Germany
| | - Ioana Puscalau-Girtu
- Institute of Protein Biochemistry, Ulm University, Helmholtzstr. 8/1, 89081 Ulm, Germany
| | - Paul Walther
- Central Facility for Electron Microscopy, Ulm University, Albert-Einstein-Allee 11, 89069 Ulm, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Helmholtzstr. 20, 89081 Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products and Clinical Pharmacology, Ulm University, Helmholtzstr. 20, 89081 Ulm, Germany
| | - Christian Haupt
- Institute of Protein Biochemistry, Ulm University, Helmholtzstr. 8/1, 89081 Ulm, Germany
| | - Marcus Fändrich
- Institute of Protein Biochemistry, Ulm University, Helmholtzstr. 8/1, 89081 Ulm, Germany
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42
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Martin EB, Williams A, Wooliver C, Heidel RE, Adams S, Dunlap J, Ramirez-Alvarado M, Blancas-Mejia LM, Lands RH, Kennel SJ, Wall JS. Differential recruitment efficacy of patient-derived amyloidogenic and myeloma light chain proteins by synthetic fibrils-A metric for predicting amyloid propensity. PLoS One 2017; 12:e0174152. [PMID: 28350808 PMCID: PMC5369765 DOI: 10.1371/journal.pone.0174152] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 03/03/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Monoclonal free light chain (LC) proteins are present in the circulation of patients with immunoproliferative disorders such as light chain (AL) amyloidosis and multiple myeloma (MM). Light chain-associated amyloid is a complex pathology composed of proteinaceous fibrils and extracellular matrix proteins found in all patients with AL and in ~10-30% of patients who presented with MM. Amyloid deposits systemically in multiple organs and tissues leading to dysfunction and ultimately death. The overall survival of patients with amyloidosis is worse than for those with early stage MM. METHODS AND FINDINGS We have developed a sensitive binding assay quantifying the recruitment of full length, patient-derived LC proteins by synthetic amyloid fibrils, as a method for studying their amyloidogenic potential. In a survey of eight urinary LC, both AL and MM-associated proteins were recruited by synthetic amyloid fibrils; however, AL-associated LC bound significantly more efficiently (p < 0.05) than did MM LCs. The LC proteins used in this study were isolated from urine and presumed to represent a surrogate of serum free light chains. CONCLUSION The binding of LC to synthetic fibrils in this assay accurately differentiated LC with amyloidogenic propensity from MM LC that were not associated with clinical amyloid disease. Notably, the LC from a MM patient who subsequently developed amyloid behaved as an AL-associated protein in the assay, indicating the possibility for identifying MM patients at risk for developing amyloidosis based on the light chain recruitment efficacy. With this information, at risk patients can be monitored more closely for the development of amyloidosis, allowing timely administration of novel, amyloid-directed immunotherapies-this approach may improve the prognosis for these patients.
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Affiliation(s)
- Emily B. Martin
- Department of Medicine, University of Tennessee Medical Center, Knoxville, Tennessee, United States of America
| | - Angela Williams
- Department of Medicine, University of Tennessee Medical Center, Knoxville, Tennessee, United States of America
| | - Craig Wooliver
- Department of Medicine, University of Tennessee Medical Center, Knoxville, Tennessee, United States of America
| | - R. Eric Heidel
- Department of Surgery, University of Tennessee Medical Center, Knoxville, Tennessee, United States of America
| | - Sarah Adams
- Department of Surgery, University of Tennessee Medical Center, Knoxville, Tennessee, United States of America
| | - John Dunlap
- Microscopy Facility, University of Tennessee, Knoxville, Tennessee, United States of America
| | - Marina Ramirez-Alvarado
- Department of Biochemistry and Molecular Biology, and Immunology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Luis M. Blancas-Mejia
- Department of Biochemistry and Molecular Biology, and Immunology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Ronald H. Lands
- Department of Medicine, University of Tennessee Medical Center, Knoxville, Tennessee, United States of America
| | - Stephen J. Kennel
- Department of Medicine, University of Tennessee Medical Center, Knoxville, Tennessee, United States of America
- Department of Radiology, University of Tennessee Medical Center, Knoxville, Tennessee, United States of America
| | - Jonathan S. Wall
- Department of Medicine, University of Tennessee Medical Center, Knoxville, Tennessee, United States of America
- Department of Radiology, University of Tennessee Medical Center, Knoxville, Tennessee, United States of America
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43
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Nyström S, Vahdat Shariat Panahi A, Nilsson KPR, Westermark P, Westermark GT, Hammarström P, Lundmark K. Seed-dependent templating of murine AA amyloidosis. Amyloid 2017; 24:140-141. [PMID: 28434369 DOI: 10.1080/13506129.2017.1290599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sofie Nyström
- a IFM-Chemistry, Linköping University , Linköping , Sweden
| | - Aida Vahdat Shariat Panahi
- b Department of Clinical Pathology and Clinical Genetics , Linköping University , Linköping , Sweden.,c Department of Clinical and Experimental Medicine , Linköping University , Linköping , Sweden
| | | | - Per Westermark
- d Department of Immunology , Genetics and Pathology, Uppsala University , Uppsala , Sweden , and
| | | | | | - Katarzyna Lundmark
- b Department of Clinical Pathology and Clinical Genetics , Linköping University , Linköping , Sweden
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44
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De Buck M, Gouwy M, Wang JM, Van Snick J, Opdenakker G, Struyf S, Van Damme J. Structure and Expression of Different Serum Amyloid A (SAA) Variants and their Concentration-Dependent Functions During Host Insults. Curr Med Chem 2017; 23:1725-55. [PMID: 27087246 PMCID: PMC5405626 DOI: 10.2174/0929867323666160418114600] [Citation(s) in RCA: 156] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 03/31/2016] [Accepted: 04/15/2016] [Indexed: 12/23/2022]
Abstract
Serum amyloid A (SAA) is, like C-reactive protein (CRP), an acute phase protein and can be used as a diagnostic, prognostic or therapy follow-up marker for many diseases. Increases in serum levels of SAA are triggered by physical insults to the host, including infection, trauma, inflammatory reactions and cancer. The order of magnitude of increase in SAA levels varies considerably, from a 10- to 100-fold during limited inflammatory events to a 1000-fold increase during severe bacterial infections and acute exacerbations of chronic inflammatory diseases. This broad response range is reflected by SAA gene duplications resulting in a cluster encoding several SAA variants and by multiple biological functions of SAA. SAA variants are single-domain proteins with simple structures and few post-translational modifications. SAA1 and SAA2 are inducible by inflammatory cytokines, whereas SAA4 is constitutively produced. We review here the regulated expression of SAA in normal and transformed cells and compare its serum levels in various disease states. At low concentrations (10-100 ng/ml), early in an inflammatory response, SAA induces chemokines or matrix degrading enzymes via Toll-like receptors and functions as an activator and chemoattractant through a G protein-coupled receptor. When an infectious or inflammatory stimulus persists, the liver continues to produce more SAA (> 1000 ng/ml) to become an antimicrobial agent by functioning as a direct opsonin of bacteria or by interference with virus infection of host cells. Thus, SAA regulates innate and adaptive immunity and this information may help to design better drugs to treat specific diseases.
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Affiliation(s)
| | | | | | | | | | | | - Jo Van Damme
- University of Leuven, Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Molecular Immunology, Minderbroedersstraat 10, 3000 Leuven, Belgium.
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45
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Braconi D, Millucci L, Bernini A, Spiga O, Lupetti P, Marzocchi B, Niccolai N, Bernardini G, Santucci A. Homogentisic acid induces aggregation and fibrillation of amyloidogenic proteins. Biochim Biophys Acta Gen Subj 2017; 1861:135-146. [DOI: 10.1016/j.bbagen.2016.11.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 11/11/2016] [Accepted: 11/15/2016] [Indexed: 10/20/2022]
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46
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Proteins behaving badly. Substoichiometric molecular control and amplification of the initiation and nature of amyloid fibril formation: lessons from and for blood clotting. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2017; 123:16-41. [DOI: 10.1016/j.pbiomolbio.2016.08.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 08/14/2016] [Accepted: 08/19/2016] [Indexed: 02/08/2023]
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47
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Riek R, Eisenberg DS. The activities of amyloids from a structural perspective. Nature 2016; 539:227-235. [PMID: 27830791 DOI: 10.1038/nature20416] [Citation(s) in RCA: 326] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 09/14/2016] [Indexed: 12/16/2022]
Abstract
The aggregation of proteins into structures known as amyloids is observed in many neurodegenerative diseases, including Alzheimer's disease. Amyloids are composed of pairs of tightly interacting, many stranded and repetitive intermolecular β-sheets, which form the cross-β-sheet structure. This structure enables amyloids to grow by recruitment of the same protein and its repetition can transform a weak biological activity into a potent one through cooperativity and avidity. Amyloids therefore have the potential to self-replicate and can adapt to the environment, yielding cell-to-cell transmissibility, prion infectivity and toxicity.
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Affiliation(s)
- Roland Riek
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zürich, Switzerland
| | - David S Eisenberg
- UCLA-DOE Institute, Los Angeles, California 90095-1570, USA.,Howard Hughes Medical Institute, Los Angeles, California 90095-1570, USA
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48
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Affiliation(s)
- P. M. Gaffney
- Departments of Pathology and Medicine, UC San Diego, La Jolla, CA, USA
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49
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Tsukawaki S, Murakami T, Suzuki K, Nakazawa Y. Studies on the potential risk of amyloidosis from exposure to silk fibroin. ACTA ACUST UNITED AC 2016; 11:065010. [PMID: 27869107 DOI: 10.1088/1748-6041/11/6/065010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Amyloid A (AA) amyloidosis can be induced by the administration of amyloid fibrils to animals under inflammatory conditions. Silk fibroin (SF) is a main component protein of bombic silk and has amyloid-like features. The amyloidogenesis of SF solution in mice has been previously reported. Recently, the biochemical properties of silk have attracted increasing attention, and research and development have been undertaken regarding applications other than as a clothing material. However, the risk of AA amyloidosis from exposure to SF-related products is unknown. In this study, we examined the amyloidogenesis of several SF-related products that vary in preparation method or route of injection in a mouse model of amyloidosis. The results revealed that amyloid deposits were rarely observed in mice exposed to SF solution or feed supplemented with SF powder. On the other hand, heavy amyloid deposits were observed in some mice implanted with SF non-woven fabric by abdominal operation. Congo red staining of SF solutions under polarized light and electron microscopy indicated that SF solution in this study had no amyloid-like structures. We found that SF-related products occasionally promote amyloidogenesis, but have a low potential for amyloidosis.
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Affiliation(s)
- Satomi Tsukawaki
- Cooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
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50
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An 11-mer Amyloid Beta Peptide Fragment Provokes Chemical Mutations and Parkinsonian Biomarker Aggregation in Dopaminergic Cells: A Novel Road Map for "Transfected" Parkinson's. ACS Chem Neurosci 2016; 7:1519-1530. [PMID: 27635664 DOI: 10.1021/acschemneuro.6b00159] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Amyloid beta (Aβ) aggregation is generally associated with Alzheimer's onset. Here, we demonstrate that incubation of dopaminergic SH-SY5Y cells with an Aβ peptide fragment (an 11-mer composed of residues 25-35; Aβ (25-35)) results in elevated intracellular nitrosative stress and induces chemical mutation of protein disulfide isomerase (PDI), an endoplasmic reticulum-resident oxidoreductase chaperone. Furthermore, Aβ (25-35) provokes aggregation of both the minor and major biomarkers of Parkinson's disease, namely, synphilin-1 and α-synuclein, respectively. Importantly, fluorescence studies demonstrate that Aβ (25-35) triggers colocalization of these Parkinsonian biomarkers to form Lewy-body-like aggregates, a key and irreversible milestone in the neurometabolic cascade leading to Parkinson's disease. In addition, fluorescence assays also reveal direct, aggregation-seeding interactions between Aβ (25-35), PDI and α-synuclein, suggesting neuronal pathogenesis occurs via prion-type cross-transfectivity. These data indicate that the introduction of an Alzheimer's-associated biomarker in dopaminergic cells is proliferative, with the percolative effect exercised via dual, independent, Parkinson-pathogenic pathways, one stress-derived and the other prion-like. The results define a novel molecular roadmap for Parkinsonian transfectivity via an Alzheimeric burden and reveal the involvement of PDI in amyloid beta induced Parkinson's.
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