1
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Greenhalgh T, Sivan M, Perlowski A, Nikolich JŽ. Long COVID: a clinical update. Lancet 2024; 404:707-724. [PMID: 39096925 DOI: 10.1016/s0140-6736(24)01136-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 05/07/2024] [Accepted: 05/30/2024] [Indexed: 08/05/2024]
Abstract
Post-COVID-19 condition (also known as long COVID) is generally defined as symptoms persisting for 3 months or more after acute COVID-19. Long COVID can affect multiple organ systems and lead to severe and protracted impairment of function as a result of organ damage. The burden of this disease, both on the individual and on health systems and national economies, is high. In this interdisciplinary Review, with a coauthor with lived experience of severe long COVID, we sought to bring together multiple streams of literature on the epidemiology, pathophysiology (including the hypothesised mechanisms of organ damage), lived experience and clinical manifestations, and clinical investigation and management of long COVID. Although current approaches to long COVID care are largely symptomatic and supportive, recent advances in clinical phenotyping, deep molecular profiling, and biomarker identification might herald a more mechanism-informed and personally tailored approach to clinical care. We also cover the organisation of services for long COVID, approaches to preventing long COVID, and suggestions for future research.
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Affiliation(s)
- Trisha Greenhalgh
- Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, Oxford, UK.
| | - Manoj Sivan
- Academic Department of Rehabilitation Medicine, Leeds Institute of Rheumatic and Musculoskeletal Medicine University of Leeds, Leeds General Infirmary, Leeds, UK
| | | | - Janko Ž Nikolich
- Department of Immunobiology and University of Arizona Center on Aging, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA; The Aegis Consortium for Pandemic-Free Future, University of Arizona Health Sciences, Tucson, AZ, USA
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2
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Baig AM, Rosko S, Jaeger B, Gerlach J, Rausch H. Unraveling the enigma of long COVID: novel aspects in pathogenesis, diagnosis, and treatment protocols. Inflammopharmacology 2024; 32:2075-2090. [PMID: 38771409 DOI: 10.1007/s10787-024-01483-2] [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: 02/27/2024] [Accepted: 04/17/2024] [Indexed: 05/22/2024]
Abstract
Long COVID, now unmistakably identified as a syndromic entity encompassing a complex spectrum of symptoms, demands immediate resolution of its elusive pathogenic underpinnings. The intricate interplay of diverse factors presents a complex puzzle, difficult to resolve, and thus poses a substantial challenge. As instances of long COVID manifest by repeated infections of SARS-CoV-2 and genetic predisposition, a detailed understanding in this regard is needed. This endeavor is a comprehensive exploration and analysis of the cascading pathogenetic events driven by viral persistence and replication. Beyond its morbidity, long COVID, more disabling than fatal, exacts one of the most substantial tolls on public health in contemporary times, with the potential to cripple national economies. The paper introduces a unified theory of long COVID, detailing a novel pathophysiological framework that interlinks persistent SARS-CoV-2 infection, autoimmunity, and systemic vascular pathology. We posit a model where viral reservoirs, immune dysregulation, and genetic predispositions converge to perpetuate disease. It challenges prevailing hypotheses with new evidence, suggesting innovative diagnostic and therapeutic approaches. The paper aims to shift the paradigm in long COVID research by providing an integrative perspective that encapsulates the multifaceted nature of the condition. We explain the immunological mechanisms, hypercoagulability states, and viral reservoirs in the skull that feed NeuroCOVID in patients with long COVID. Also, this study hints toward a patient approach and how to prioritize treatment sequences in long COVID patients in hospitals and clinics.
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Affiliation(s)
| | - Sandy Rosko
- Clinicum St. George, Rosenheimer Str. 6-8, Bad Aibling, Germany
| | - Beate Jaeger
- Clinicum St. George, Rosenheimer Str. 6-8, Bad Aibling, Germany
| | - Joachim Gerlach
- Clinicum St. George, Rosenheimer Str. 6-8, Bad Aibling, Germany
| | - Hans Rausch
- Clinicum St. George, Rosenheimer Str. 6-8, Bad Aibling, Germany
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3
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Navolokin N, Adushkina V, Zlatogorskaya D, Telnova V, Evsiukova A, Vodovozova E, Eroshova A, Dosadina E, Diduk S, Semyachkina-Glushkovskaya O. Promising Strategies to Reduce the SARS-CoV-2 Amyloid Deposition in the Brain and Prevent COVID-19-Exacerbated Dementia and Alzheimer's Disease. Pharmaceuticals (Basel) 2024; 17:788. [PMID: 38931455 PMCID: PMC11206883 DOI: 10.3390/ph17060788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 06/02/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
The COVID-19 pandemic, caused by infection with the SARS-CoV-2 virus, is associated with cognitive impairment and Alzheimer's disease (AD) progression. Once it enters the brain, the SARS-CoV-2 virus stimulates accumulation of amyloids in the brain that are highly toxic to neural cells. These amyloids may trigger neurological symptoms in COVID-19. The meningeal lymphatic vessels (MLVs) play an important role in removal of toxins and mediate viral drainage from the brain. MLVs are considered a promising target to prevent COVID-19-exacerbated dementia. However, there are limited methods for augmentation of MLV function. This review highlights new discoveries in the field of COVID-19-mediated amyloid accumulation in the brain associated with the neurological symptoms and the development of promising strategies to stimulate clearance of amyloids from the brain through lymphatic and other pathways. These strategies are based on innovative methods of treating brain dysfunction induced by COVID-19 infection, including the use of photobiomodulation, plasmalogens, and medicinal herbs, which offer hope for addressing the challenges posed by the SARS-CoV-2 virus.
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Affiliation(s)
- Nikita Navolokin
- Department of Pathological Anatomy, Saratov Medical State University, Bolshaya Kazachaya Str. 112, 410012 Saratov, Russia;
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (V.A.); (D.Z.); (V.T.); (A.E.)
| | - Viktoria Adushkina
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (V.A.); (D.Z.); (V.T.); (A.E.)
| | - Daria Zlatogorskaya
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (V.A.); (D.Z.); (V.T.); (A.E.)
| | - Valeria Telnova
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (V.A.); (D.Z.); (V.T.); (A.E.)
| | - Arina Evsiukova
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (V.A.); (D.Z.); (V.T.); (A.E.)
| | - Elena Vodovozova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia;
| | - Anna Eroshova
- Department of Biotechnology, Leeners LLC, Nagornyi Proezd 3a, 117105 Moscow, Russia; (A.E.); (E.D.); (S.D.)
| | - Elina Dosadina
- Department of Biotechnology, Leeners LLC, Nagornyi Proezd 3a, 117105 Moscow, Russia; (A.E.); (E.D.); (S.D.)
| | - Sergey Diduk
- Department of Biotechnology, Leeners LLC, Nagornyi Proezd 3a, 117105 Moscow, Russia; (A.E.); (E.D.); (S.D.)
- Research Institute of Carcinogenesis of the N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia, Kashirskoe Shosse 24, 115522 Moscow, Russia
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4
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Iba T, Connors JM, Levy JH. What Role Does Microthrombosis Play in Long COVID? Semin Thromb Hemost 2024; 50:527-536. [PMID: 37748518 DOI: 10.1055/s-0043-1774795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Soon after the outbreak of coronavirus disease 2019 (COVID-19), unexplained sustained fatigue, cognitive disturbance, and muscle ache/weakness were reported in patients who had recovered from acute COVID-19 infection. This abnormal condition has been recognized as "long COVID (postacute sequelae of COVID-19 [PASC])" with a prevalence estimated to be from 10 to 20% of convalescent patients. Although the pathophysiology of PASC has been studied, the exact mechanism remains obscure. Microclots in circulation can represent one of the possible causes of PASC. Although hypercoagulability and thrombosis are critical mechanisms of acute COVID-19, recent studies have reported that thromboinflammation continues in some patients, even after the virus has cleared. Viral spike proteins and RNA can be detected months after patients have recovered, findings that may be responsible for persistent thromboinflammation and the development of microclots. Despite this theory, long-term results of anticoagulation, antiplatelet therapy, and vascular endothelial protection are inconsistent, and could not always show beneficial treatment effects. In summary, PASC reflects a heterogeneous condition, and microclots cannot explain all the presenting symptoms. After clarification of the pathomechanisms of each symptom, a symptom- or biomarker-based stratified approach should be considered for future studies.
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Affiliation(s)
- Toshiaki Iba
- Department of Emergency and Disaster Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Jean M Connors
- Division of Hematology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jerrold H Levy
- Department of Anesthesiology, Critical Care, and Surgery, Duke University School of Medicine, Durham, North Carolina
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5
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Koroleva ON, Kuzmina NV, Dubrovin EV, Drutsa VL. Atomic force microscopy of spherical intermediates on the pathway to fibril formation of influenza A virus nuclear export protein. Microsc Res Tech 2024; 87:1131-1145. [PMID: 38270267 DOI: 10.1002/jemt.24499] [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: 08/25/2023] [Revised: 01/02/2024] [Accepted: 01/07/2024] [Indexed: 01/26/2024]
Abstract
The nuclear export protein of the influenza A virus (NEP) is involved in many important processes of the virus life cycle. This makes it an attractive target for the treatment of a disease caused by a virus. Previously it has been shown, that recombinant variants of NEP are highly prone to aggregation in solution under various conditions with the formation of amyloid-like aggregates. In the present work, the amyloid nature of NEP aggregates was evidenced by Congo red binding assays. Atomic force microscopy has shown that NEP can form two types of spherical nanoparticles, which provide an alternative pathway for the formation of amyloid-like fibrils. Type I of these "fibrillogenic" spheres, formed under physiological conditions, represents the micelle-like particles with height 10-60 nm, which can generate worm-like flexible fibrils with the diameter 2.5-4.0 nm, length 20-500 nm and the Young's modulus ~73 MPa. Type II spherical aggregates with size of about 400-1000 nm, formed at elevated temperatures, includes fractions of drop-like and vesicle-like particles, generating more rigid amyloid-like fibrils with height of ~8 nm, and length of up to 2 μm. The hypothetical mechanism of fibril formation via nanospherical structures was suggested. RESEARCH HIGHLIGHTS: AFM has revealed two types of the influenza A virus nuclear export protein spherical aggregates. They provide an alternative pathway for the formation of amyloid-like fibrils. The mechanism of fibril formation via spherical structures is suggested.
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Affiliation(s)
- Olga N Koroleva
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Natalia V Kuzmina
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Evgeniy V Dubrovin
- Faculty of Physics, Lomonosov Moscow State University, Moscow, Russian Federation
- National University of Science and Technology, MISIS, Moscow, Russian Federation
| | - Valeriy L Drutsa
- A.N.Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russian Federation
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6
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Pretorius E, Kell DB. A Perspective on How Fibrinaloid Microclots and Platelet Pathology May be Applied in Clinical Investigations. Semin Thromb Hemost 2024; 50:537-551. [PMID: 37748515 PMCID: PMC11105946 DOI: 10.1055/s-0043-1774796] [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] [Indexed: 09/27/2023]
Abstract
Microscopy imaging has enabled us to establish the presence of fibrin(ogen) amyloid (fibrinaloid) microclots in a range of chronic, inflammatory diseases. Microclots may also be induced by a variety of purified substances, often at very low concentrations. These molecules include bacterial inflammagens, serum amyloid A, and the S1 spike protein of severe acute respiratory syndrome coronavirus 2. Here, we explore which of the properties of these microclots might be used to contribute to differential clinical diagnoses and prognoses of the various diseases with which they may be associated. Such properties include distributions in their size and number before and after the addition of exogenous thrombin, their spectral properties, the diameter of the fibers of which they are made, their resistance to proteolysis by various proteases, their cross-seeding ability, and the concentration dependence of their ability to bind small molecules including fluorogenic amyloid stains. Measuring these microclot parameters, together with microscopy imaging itself, along with methodologies like proteomics and imaging flow cytometry, as well as more conventional assays such as those for cytokines, might open up the possibility of a much finer use of these microclot properties in generative methods for a future where personalized medicine will be standard procedures in all clotting pathology disease diagnoses.
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Affiliation(s)
- Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Matieland, South Africa
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Douglas B. Kell
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Matieland, South Africa
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, United Kingdom
- The Novo Nordisk Foundation Centre for Biosustainability, Technical University of Denmark, Lyngby, Denmark
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7
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Li M, Castro Lingl S, Yang J. Reduction of hemagglutination induced by a SARS-CoV-2 spike protein fragment using an amyloid-binding benzothiazole amphiphile. Sci Rep 2024; 14:12317. [PMID: 38811619 PMCID: PMC11137076 DOI: 10.1038/s41598-024-59585-4] [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: 12/16/2023] [Accepted: 04/12/2024] [Indexed: 05/31/2024] Open
Abstract
COVID-19 infection is associated with a variety of vascular occlusive morbidities. However, a comprehensive understanding of how this virus can induce vascular complications remains lacking. Here, we show that a peptide fragment of SARS-CoV-2 spike protein, S192 (sequence 192-211), is capable of forming amyloid-like aggregates that can induce agglutination of red blood cells, which was not observed with low- and non-aggregated S192 peptide. We subsequently screened eight amyloid-binding molecules and identified BAM1-EG6, a benzothiazole amphiphile, as a promising candidate capable of binding to aggregated S192 and partially inhibiting its agglutination activity. These results provide new insight into a potential molecular mechanism for the capability of spike protein metabolites to contribute to COVID-19-related blood complications and suggest a new therapeutic approach for combating microvascular morbidities in COVID-19 patients.
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Affiliation(s)
- Meihan Li
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, 92093-0358, USA
| | - Sascha Castro Lingl
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, 92093-0358, USA
| | - Jerry Yang
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, 92093-0358, USA.
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Tan S, Li W, Yang C, Zhan Q, Lu K, Liu J, Jin YM, Bai JS, Wang L, Li J, Li Z, Yu F, Li YY, Duan YX, Lu L, Zhang T, Wei J, Li L, Zheng YT, Jiang S, Liu S. gp120-derived amyloidogenic peptides form amyloid fibrils that increase HIV-1 infectivity. Cell Mol Immunol 2024; 21:479-494. [PMID: 38443447 PMCID: PMC11061181 DOI: 10.1038/s41423-024-01144-y] [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: 07/13/2023] [Accepted: 02/02/2024] [Indexed: 03/07/2024] Open
Abstract
Apart from mediating viral entry, the function of the free HIV-1 envelope protein (gp120) has yet to be elucidated. Our group previously showed that EP2 derived from one β-strand in gp120 can form amyloid fibrils that increase HIV-1 infectivity. Importantly, gp120 contains ~30 β-strands. We examined whether gp120 might serve as a precursor protein for the proteolytic release of amyloidogenic fragments that form amyloid fibrils, thereby promoting viral infection. Peptide array scanning, enzyme degradation assays, and viral infection experiments in vitro confirmed that many β-stranded peptides derived from gp120 can indeed form amyloid fibrils that increase HIV-1 infectivity. These gp120-derived amyloidogenic peptides, or GAPs, which were confirmed to form amyloid fibrils, were termed gp120-derived enhancers of viral infection (GEVIs). GEVIs specifically capture HIV-1 virions and promote their attachment to target cells, thereby increasing HIV-1 infectivity. Different GAPs can cross-interact to form heterogeneous fibrils that retain the ability to increase HIV-1 infectivity. GEVIs even suppressed the antiviral activity of a panel of antiretroviral agents. Notably, endogenous GAPs and GEVIs were found in the lymphatic fluid, lymph nodes, and cerebrospinal fluid (CSF) of AIDS patients in vivo. Overall, gp120-derived amyloid fibrils might play a crucial role in the process of HIV-1 infectivity and thus represent novel targets for anti-HIV therapeutics.
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Affiliation(s)
- Suiyi Tan
- Guangdong-Hong Kong-Macao Joint Laboratory for New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Wenjuan Li
- Guangdong-Hong Kong-Macao Joint Laboratory for New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Chan Yang
- Guangdong-Hong Kong-Macao Joint Laboratory for New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Qingping Zhan
- Guangdong-Hong Kong-Macao Joint Laboratory for New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Kunyu Lu
- Guangdong-Hong Kong-Macao Joint Laboratory for New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jun Liu
- Department of Infectious Disease, The Third People's Hospital of Kunming, Kunming, 650041, China
| | - Yong-Mei Jin
- Department of Infectious Disease, The Third People's Hospital of Kunming, Kunming, 650041, China
| | - Jin-Song Bai
- Department of Infectious Disease, The Third People's Hospital of Kunming, Kunming, 650041, China
| | - Lin Wang
- Department of Pathology, The Third People's Hospital of Kunming, Kunming, 650041, China
| | - Jinqing Li
- Guangdong-Hong Kong-Macao Joint Laboratory for New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Zhaofeng Li
- Guangdong-Hong Kong-Macao Joint Laboratory for New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Fei Yu
- Hebei Key Laboratory of Analysis and Control of Zoonotic Pathogenic Microorganism, College of Life Sciences, Hebei Agricultural University, Baoding, 071001, China
| | - Yu-Ye Li
- Department of Dermatology and Venereology, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| | - Yue-Xun Duan
- Yunnan Provincial Infectious Disease Hospital, Kunming, 650301, China
| | - Lu Lu
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Shanghai Institute of Infectious Disease and Biosecurity, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Tong Zhang
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, 100069, China
| | - Jiaqi Wei
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, 100069, China
| | - Lin Li
- Guangdong-Hong Kong-Macao Joint Laboratory for New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yong-Tang Zheng
- State Key Laboratory of Genetic Evolution & Animal Models, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Center for Biosafety Mega-Science, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China
| | - Shibo Jiang
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Shanghai Institute of Infectious Disease and Biosecurity, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China.
| | - Shuwen Liu
- Guangdong-Hong Kong-Macao Joint Laboratory for New Drug Screening, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
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9
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Kumar A, Tripathi P, Kumar P, Shekhar R, Pathak R. From Detection to Protection: Antibodies and Their Crucial Role in Diagnosing and Combatting SARS-CoV-2. Vaccines (Basel) 2024; 12:459. [PMID: 38793710 PMCID: PMC11125746 DOI: 10.3390/vaccines12050459] [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: 03/13/2024] [Revised: 04/20/2024] [Accepted: 04/22/2024] [Indexed: 05/26/2024] Open
Abstract
Understanding the antibody response to SARS-CoV-2, the virus responsible for COVID-19, is crucial to comprehending disease progression and the significance of vaccine and therapeutic development. The emergence of highly contagious variants poses a significant challenge to humoral immunity, underscoring the necessity of grasping the intricacies of specific antibodies. This review emphasizes the pivotal role of antibodies in shaping immune responses and their implications for diagnosing, preventing, and treating SARS-CoV-2 infection. It delves into the kinetics and characteristics of the antibody response to SARS-CoV-2 and explores current antibody-based diagnostics, discussing their strengths, clinical utility, and limitations. Furthermore, we underscore the therapeutic potential of SARS-CoV-2-specific antibodies, discussing various antibody-based therapies such as monoclonal antibodies, polyclonal antibodies, anti-cytokines, convalescent plasma, and hyperimmunoglobulin-based therapies. Moreover, we offer insights into antibody responses to SARS-CoV-2 vaccines, emphasizing the significance of neutralizing antibodies in order to confer immunity to SARS-CoV-2, along with emerging variants of concern (VOCs) and circulating Omicron subvariants. We also highlight challenges in the field, such as the risks of antibody-dependent enhancement (ADE) for SARS-CoV-2 antibodies, and shed light on the challenges associated with the original antigenic sin (OAS) effect and long COVID. Overall, this review intends to provide valuable insights, which are crucial to advancing sensitive diagnostic tools, identifying efficient antibody-based therapeutics, and developing effective vaccines to combat the evolving threat of SARS-CoV-2 variants on a global scale.
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Affiliation(s)
- Anoop Kumar
- Molecular Diagnostic Laboratory, National Institute of Biologicals, Noida 201309, India
| | - Prajna Tripathi
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, NY 10021, USA;
| | - Prashant Kumar
- R. Ken Coit College of Pharmacy, University of Arizona, Tucson, AZ 85721, USA
| | - Ritu Shekhar
- Department of Molecular Genetics and Microbiology, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Rajiv Pathak
- Department of Genetics, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
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10
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Gibo M, Kojima S, Fujisawa A, Kikuchi T, Fukushima M. Increased Age-Adjusted Cancer Mortality After the Third mRNA-Lipid Nanoparticle Vaccine Dose During the COVID-19 Pandemic in Japan. Cureus 2024; 16:e57860. [PMID: 38721172 PMCID: PMC11077472 DOI: 10.7759/cureus.57860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2024] [Indexed: 06/14/2024] Open
Abstract
During the COVID-19 pandemic, excess deaths including cancer have become a concern in Japan, which has a rapidly aging population. Thus, this study aimed to evaluate how age-adjusted mortality rates (AMRs) for different types of cancer in Japan changed during the COVID-19 pandemic (2020-2022). Official statistics from Japan were used to compare observed annual and monthly AMRs with predicted rates based on pre-pandemic (2010-2019) figures using logistic regression analysis. No significant excess mortality was observed during the first year of the pandemic (2020). However, some excess cancer mortalities were observed in 2021 after mass vaccination with the first and second vaccine doses, and significant excess mortalities were observed for all cancers and some specific types of cancer (including ovarian cancer, leukemia, prostate cancer, lip/oral/pharyngeal cancer, pancreatic cancer, and breast cancer) after mass vaccination with the third dose in 2022. AMRs for the four cancers with the most deaths (lung, colorectal, stomach, and liver) showed a decreasing trend until the first year of the pandemic in 2020, but the rate of decrease slowed in 2021 and 2022. This study discusses possible explanations for these increases in age-adjusted cancer mortality rates.
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Affiliation(s)
- Miki Gibo
- Primary Health Care, Matsubara Clinic, Kochi, JPN
| | - Seiji Kojima
- Pediatrics, Nagoya Pediatric Cancer Fund, Nagoya, JPN
| | - Akinori Fujisawa
- Cardiovascular Medicine, Honbetsu Cardiovascular Medicine Clinic, Honbetsu, JPN
| | - Takayuki Kikuchi
- Translational Research & Health Data Science, Learning Health Society Institute, Nagoya, JPN
| | - Masanori Fukushima
- Translational Research & Health Data Science, Learning Health Society Institute, Nagoya, JPN
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11
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Wang J, Dai L, Deng M, Xiao T, Zhang Z, Zhang Z. SARS-CoV-2 Spike Protein S1 Domain Accelerates α-Synuclein Phosphorylation and Aggregation in Cellular Models of Synucleinopathy. Mol Neurobiol 2024; 61:2446-2458. [PMID: 37897633 DOI: 10.1007/s12035-023-03726-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/19/2023] [Indexed: 10/30/2023]
Abstract
The 2019 novel coronavirus disease (COVID-19) is an infectious disease that began to spread globally since 2019. Some COVID-19 patients have neurological complications, such as olfactory disorders and movement disorders, which coincide with the symptoms of Parkinson's disease (PD). Increasing imaging and autopsy evidence supports that the density of dopaminergic neurons in the nigrostriatal pathway is damaged in some COVID-19 patients. However, the underlying mechanism that causes PD-like symptoms remains unclear. PD is an age-related neurodegenerative disease with Lewy bodies (LBs) as its histopathologic feature. The main component of LBs is abnormally aggregated α-synuclein (α-syn). The prion-like propagation of α-syn aggregates plays a key role in the onset and progression of PD. The spike protein (S protein) of SARS-CoV-2 is a heparin-binding protein that mediates the entry of the virus into host cells. Here we found that the S1 domain interacts with α-syn and promotes α-syn aggregation. The S1 domain induces mitochondrial dysfunction, oxidative stress, and cytotoxicity. The S1-seeded α-syn fibrils show enhanced seeding activity and induce synaptic damage and cytotoxicity. Thus, the S1 domain of SARS-CoV-2 promotes the aggregation of α-syn in the cellular model of synucleinopathy and may contribute to the pathogenesis of PD.
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Affiliation(s)
- Jiannan Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Lijun Dai
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Min Deng
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Tingting Xiao
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Zhaohui Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Zhentao Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430000, China.
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12
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Nawaz AD, Haider MZ, Akhtar S. COVID-19 and Alzheimer's disease: Impact of lockdown and other restrictive measures during the COVID-19 pandemic. BIOMOLECULES & BIOMEDICINE 2024; 24:219-229. [PMID: 38078809 PMCID: PMC10950341 DOI: 10.17305/bb.2023.9680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 11/12/2023] [Accepted: 11/28/2023] [Indexed: 03/14/2024]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection initially results in respiratory distress symptoms but can also lead to central nervous system (CNS) and neurological manifestations, significantly impacting coronavirus disease 2019 (COVID-19) patients with neurodegenerative diseases. Additionally, strict lockdown measures introduced to curtail the spread of COVID-19 have raised concerns over the wellbeing of patients with dementia and/or Alzheimer's disease. The aim of this review was to discuss the overlapping molecular pathologies and the potential bidirectional relationship between COVID-19 and Alzheimer's dementia, as well as the impact of lockdown/restriction measures on the neuropsychiatric symptoms (NPS) of patients with Alzheimer's dementia. Furthermore, we aimed to assess the impact of lockdown measures on the NPS of caregivers, exploring its potential effects on the quality and extent of care they provide to dementia patients.We utilized the PubMed and Google Scholar databases to search for articles on COVID-19, dementia, Alzheimer's disease, lockdown, and caregivers. Our review highlights that patients with Alzheimer's disease face an increased risk of COVID-19 infection and complications. Additionally, these patients are likely to experience greater cognitive decline. It appears that these issues are primarily caused by the SARS-CoV-2 infection and appear to be further exacerbated by restrictive/lockdown measures. Moreover, lockdown measures introduced during the pandemic have negatively impacted both the NPSs of caregivers and their perception of the wellbeing of their Alzheimer's patients. Thus, additional safeguard measures, along with pharmacological and non-pharmacological approaches, are needed to protect the wellbeing of dementia patients and their caregivers in light of this and possible future pandemics.
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Affiliation(s)
| | | | - Saghir Akhtar
- College of Medicine, QU Health, Qatar University, Doha, Qatar
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13
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Wang J, Dai L, Chen S, Zhang Z, Fang X, Zhang Z. Protein-protein interactions regulating α-synuclein pathology. Trends Neurosci 2024; 47:209-226. [PMID: 38355325 DOI: 10.1016/j.tins.2024.01.002] [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: 09/11/2023] [Revised: 12/15/2023] [Accepted: 01/21/2024] [Indexed: 02/16/2024]
Abstract
Parkinson's disease (PD) is a neurodegenerative disease characterized by the degeneration of dopaminergic neurons in the substantia nigra pars compacta (SNpc) and the formation of Lewy bodies (LBs). The main proteinaceous component of LBs is aggregated α-synuclein (α-syn). However, the mechanisms underlying α-syn aggregation are not yet fully understood. Converging lines of evidence indicate that, under certain pathological conditions, various proteins can interact with α-syn and regulate its aggregation. Understanding these protein-protein interactions is crucial for unraveling the molecular mechanisms contributing to PD pathogenesis. In this review we provide an overview of the current knowledge on protein-protein interactions that regulate α-syn aggregation. Additionally, we briefly summarize the methods used to investigate the influence of protein-protein interactions on α-syn aggregation and propagation.
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Affiliation(s)
- Jiannan Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Lijun Dai
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Sichun Chen
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Zhaohui Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Xin Fang
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330000, China
| | - Zhentao Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan 430060, China; TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan 430000, China.
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14
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Zhang Y, Bharathi V, Dokoshi T, de Anda J, Ursery LT, Kulkarni NN, Nakamura Y, Chen J, Luo EWC, Wang L, Xu H, Coady A, Zurich R, Lee MW, Matsui T, Lee H, Chan LC, Schepmoes AA, Lipton MS, Zhao R, Adkins JN, Clair GC, Thurlow LR, Schisler JC, Wolfgang MC, Hagan RS, Yeaman MR, Weiss TM, Chen X, Li MMH, Nizet V, Antoniak S, Mackman N, Gallo RL, Wong GCL. Viral afterlife: SARS-CoV-2 as a reservoir of immunomimetic peptides that reassemble into proinflammatory supramolecular complexes. Proc Natl Acad Sci U S A 2024; 121:e2300644120. [PMID: 38306481 PMCID: PMC10861912 DOI: 10.1073/pnas.2300644120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 10/28/2023] [Indexed: 02/04/2024] Open
Abstract
It is unclear how severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection leads to the strong but ineffective inflammatory response that characterizes severe Coronavirus disease 2019 (COVID-19), with amplified immune activation in diverse cell types, including cells without angiotensin-converting enzyme 2 receptors necessary for infection. Proteolytic degradation of SARS-CoV-2 virions is a milestone in host viral clearance, but the impact of remnant viral peptide fragments from high viral loads is not known. Here, we examine the inflammatory capacity of fragmented viral components from the perspective of supramolecular self-organization in the infected host environment. Interestingly, a machine learning analysis to SARS-CoV-2 proteome reveals sequence motifs that mimic host antimicrobial peptides (xenoAMPs), especially highly cationic human cathelicidin LL-37 capable of augmenting inflammation. Such xenoAMPs are strongly enriched in SARS-CoV-2 relative to low-pathogenicity coronaviruses. Moreover, xenoAMPs from SARS-CoV-2 but not low-pathogenicity homologs assemble double-stranded RNA (dsRNA) into nanocrystalline complexes with lattice constants commensurate with the steric size of Toll-like receptor (TLR)-3 and therefore capable of multivalent binding. Such complexes amplify cytokine secretion in diverse uninfected cell types in culture (epithelial cells, endothelial cells, keratinocytes, monocytes, and macrophages), similar to cathelicidin's role in rheumatoid arthritis and lupus. The induced transcriptome matches well with the global gene expression pattern in COVID-19, despite using <0.3% of the viral proteome. Delivery of these complexes to uninfected mice boosts plasma interleukin-6 and CXCL1 levels as observed in COVID-19 patients.
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Affiliation(s)
- Yue Zhang
- Department of Bioengineering, University of California, Los Angeles, CA90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA9009
- California NanoSystems Institute, University of California, Los Angeles, CA90095
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA90095
- Biomedical Engineering, School of Engineering, Westlake University, Hangzhou, Zhejiang310012, China
| | - Vanthana Bharathi
- University of North Carolina Blood Research Center, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
| | - Tatsuya Dokoshi
- Department of Dermatology, University of California San Diego, La Jolla, CA92093
| | - Jaime de Anda
- Department of Bioengineering, University of California, Los Angeles, CA90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA9009
- California NanoSystems Institute, University of California, Los Angeles, CA90095
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA90095
| | - Lauryn Tumey Ursery
- University of North Carolina Blood Research Center, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
| | - Nikhil N. Kulkarni
- Department of Dermatology, University of California San Diego, La Jolla, CA92093
| | - Yoshiyuki Nakamura
- Department of Dermatology, University of California San Diego, La Jolla, CA92093
| | - Jonathan Chen
- Department of Bioengineering, University of California, Los Angeles, CA90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA9009
- California NanoSystems Institute, University of California, Los Angeles, CA90095
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA90095
| | - Elizabeth W. C. Luo
- Department of Bioengineering, University of California, Los Angeles, CA90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA9009
- California NanoSystems Institute, University of California, Los Angeles, CA90095
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA90095
| | - Lamei Wang
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Hua Xu
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Alison Coady
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA92093
| | - Raymond Zurich
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA92093
| | - Michelle W. Lee
- Department of Bioengineering, University of California, Los Angeles, CA90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA9009
- California NanoSystems Institute, University of California, Los Angeles, CA90095
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA90095
| | - Tsutomu Matsui
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA94025
| | - HongKyu Lee
- Division of Molecular Medicine, Harbor-University of California Los Angeles Medical Center, Los Angeles County, Torrance, CA90502
| | - Liana C. Chan
- Division of Molecular Medicine, Harbor-University of California Los Angeles Medical Center, Los Angeles County, Torrance, CA90502
- Division of Infectious Diseases, Harbor-University of California Los Angeles Medical Center, Los Angeles County, Torrance, CA90502
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA90095
- Institute for Infection & Immunity, Lundquist Institute for Biomedical Innovation, Harbor-University of California Los Angeles Medical Center, Torrance, CA90502
| | - Athena A. Schepmoes
- Environmental Molecular Science Division, Pacific Northwest National Laboratory, Richland, WA99354
| | - Mary S. Lipton
- Environmental Molecular Science Division, Pacific Northwest National Laboratory, Richland, WA99354
| | - Rui Zhao
- Environmental Molecular Science Division, Pacific Northwest National Laboratory, Richland, WA99354
| | - Joshua N. Adkins
- Biological Science Division, Pacific Northwest National Laboratory, Richland, WA99354
| | - Geremy C. Clair
- Biological Science Division, Pacific Northwest National Laboratory, Richland, WA99354
| | - Lance R. Thurlow
- Division of Oral and Craniofacial Health Sciences, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
| | - Jonathan C. Schisler
- McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
- Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
- Computational Medicine Program, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
| | - Matthew C. Wolfgang
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
- Marsico Lung Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
| | - Robert S. Hagan
- Marsico Lung Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
- Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
| | - Michael R. Yeaman
- Division of Molecular Medicine, Harbor-University of California Los Angeles Medical Center, Los Angeles County, Torrance, CA90502
- Division of Infectious Diseases, Harbor-University of California Los Angeles Medical Center, Los Angeles County, Torrance, CA90502
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA90095
- Institute for Infection & Immunity, Lundquist Institute for Biomedical Innovation, Harbor-University of California Los Angeles Medical Center, Torrance, CA90502
| | - Thomas M. Weiss
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA94025
| | - Xinhua Chen
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA02215
| | - Melody M. H. Li
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA90095
| | - Victor Nizet
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA92093
| | - Silvio Antoniak
- Department of Pathology and Laboratory Medicine, University of North Carolina Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
| | - Nigel Mackman
- University of North Carolina Blood Research Center, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC27599
| | - Richard L. Gallo
- Department of Dermatology, University of California San Diego, La Jolla, CA92093
| | - Gerard C. L. Wong
- Department of Bioengineering, University of California, Los Angeles, CA90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA9009
- California NanoSystems Institute, University of California, Los Angeles, CA90095
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA90095
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15
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Sánchez-Moguel I, Coffeen CF, Bustos-Jaimes I. On-column refolding and off-column assembly of parvovirus B19 virus-like particles from bacteria-expressed protein. Appl Microbiol Biotechnol 2024; 108:160. [PMID: 38252281 PMCID: PMC10803429 DOI: 10.1007/s00253-024-13004-w] [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: 08/08/2023] [Revised: 12/26/2023] [Accepted: 01/04/2024] [Indexed: 01/23/2024]
Abstract
Virus-like particles (VLPs) are nanometric structures composed of structural components of virions, keeping most of the cellular recognition and internalization properties, but are non-infective as they are deprived of their genetic material. VLPs have been a versatile platform for developing vaccines by carrying their own or heterologous antigenic epitopes. Moreover, VLPs can also be used as nanovessels for encapsulating molecules with therapeutic applications, like enzymes, nucleic acids, and drugs. Parvovirus B19 (B19V) VLPs can be self-assembled in vitro from the denatured major viral particle protein VP2 by equilibrium dialysis. Despite its fair productivity, this process is currently a time-consuming task. Affinity chromatography is used as an efficient step for concentration and purification, but it is only sometimes seen as a method that facilitates the oligomerization of proteins. In this research, we report a novel approach for the in vitro assembly of B19V VLPs through the immobilization of the denatured VP2 into an immobilized metal affinity chromatography (IMAC) column, followed by the on-column folding and the final VLP assembly upon protein elution. This method is suitable for the fast production of B19V VLPs. KEY POINTS: • Biotechnological applications for inclusion bodies • Efficient single-step purification and immobilization strategies • Rapid VLP assembly strategy.
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Affiliation(s)
- Ignacio Sánchez-Moguel
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, 04510, Mexico City, Mexico
| | - Carlos Francisco Coffeen
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, 04510, Mexico City, Mexico
| | - Ismael Bustos-Jaimes
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, 04510, Mexico City, Mexico.
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16
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Zilio G, Masato A, Sandre M, Caregnato A, Moret F, Maciola AK, Antonini A, Brucale M, Cendron L, Plotegher N, Bubacco L. SARS-CoV-2-Mimicking Pseudoviral Particles Accelerate α-Synuclein Aggregation In Vitro. ACS Chem Neurosci 2024; 15:215-221. [PMID: 38131609 DOI: 10.1021/acschemneuro.3c00468] [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] [Indexed: 12/23/2023] Open
Abstract
Since the SARS-CoV-2 virus started spreading worldwide, evidence pointed toward an impact of the infection on the nervous system. COVID-19 patients present neurological manifestations and have an increased risk of developing brain-related symptoms in the long term. In fact, evidence in support of the neuroinvasive potential of SARS-CoV-2 has emerged. Considering that viral parkisonism was observed as a consequence of encephalopathies caused by viral infections, it has been already suggested that COVID-19 could affect the dopaminergic neurons and contribute to neurodegeneration in Parkinson's disease (PD), by promoting the formation of amyloid fibrils constituted by the PD-related protein α-synuclein. Here, we observe not only that SARS-CoV-2 viral spike protein and nucleocapsid protein can alone promote α-synuclein aggregation but also that the spike protein organization in a corona shape on the viral envelope may be crucial in triggering fast amyloid fibrils formation, thus possibly contributing to PD pathogenesis.
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Affiliation(s)
- Gianluca Zilio
- Department of Biology, University of Padova, Padova 35131, Italy
| | - Anna Masato
- Department of Biology, University of Padova, Padova 35131, Italy
| | - Michele Sandre
- Department of Biology, University of Padova, Padova 35131, Italy
- Department of Neuroscience, University of Padova, Padova 35121, Italy
| | - Alberto Caregnato
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova 35131, Italy
| | - Francesca Moret
- Department of Biology, University of Padova, Padova 35131, Italy
| | | | - Angelo Antonini
- Department of Neuroscience, University of Padova, Padova 35121, Italy
| | - Marco Brucale
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati, Bologna 40129, Italy
| | - Laura Cendron
- Department of Biology, University of Padova, Padova 35131, Italy
| | | | - Luigi Bubacco
- Department of Biology, University of Padova, Padova 35131, Italy
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17
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Mead MN, Seneff S, Wolfinger R, Rose J, Denhaerynck K, Kirsch S, McCullough PA. COVID-19 mRNA Vaccines: Lessons Learned from the Registrational Trials and Global Vaccination Campaign. Cureus 2024; 16:e52876. [PMID: 38274635 PMCID: PMC10810638 DOI: 10.7759/cureus.52876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2024] [Indexed: 01/27/2024] Open
Abstract
Our understanding of COVID-19 vaccinations and their impact on health and mortality has evolved substantially since the first vaccine rollouts. Published reports from the original randomized phase 3 trials concluded that the COVID-19 mRNA vaccines could greatly reduce COVID-19 symptoms. In the interim, problems with the methods, execution, and reporting of these pivotal trials have emerged. Re-analysis of the Pfizer trial data identified statistically significant increases in serious adverse events (SAEs) in the vaccine group. Numerous SAEs were identified following the Emergency Use Authorization (EUA), including death, cancer, cardiac events, and various autoimmune, hematological, reproductive, and neurological disorders. Furthermore, these products never underwent adequate safety and toxicological testing in accordance with previously established scientific standards. Among the other major topics addressed in this narrative review are the published analyses of serious harms to humans, quality control issues and process-related impurities, mechanisms underlying adverse events (AEs), the immunologic basis for vaccine inefficacy, and concerning mortality trends based on the registrational trial data. The risk-benefit imbalance substantiated by the evidence to date contraindicates further booster injections and suggests that, at a minimum, the mRNA injections should be removed from the childhood immunization program until proper safety and toxicological studies are conducted. Federal agency approval of the COVID-19 mRNA vaccines on a blanket-coverage population-wide basis had no support from an honest assessment of all relevant registrational data and commensurate consideration of risks versus benefits. Given the extensive, well-documented SAEs and unacceptably high harm-to-reward ratio, we urge governments to endorse a global moratorium on the modified mRNA products until all relevant questions pertaining to causality, residual DNA, and aberrant protein production are answered.
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Affiliation(s)
- M Nathaniel Mead
- Biology and Nutritional Epidemiology, Independent Research, Copper Hill, USA
| | - Stephanie Seneff
- Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, USA
| | - Russ Wolfinger
- Biostatistics and Epidemiology, Independent Research, Research Triangle Park, USA
| | - Jessica Rose
- Immunology and Public Health Research, Independent Research, Ottawa, CAN
| | - Kris Denhaerynck
- Epidemiology and Biostatistics, Independent Research, Basel, CHE
| | - Steve Kirsch
- Data Science, Independent Research, Los Angeles, USA
| | - Peter A McCullough
- Cardiology, Epidemiology, and Public Health, McCullough Foundation, Dallas, USA
- Cardiology, Epidemiology, and Public Health, Truth for Health Foundation, Tucson, USA
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18
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Weissert R. Nervous system-related tropism of SARS-CoV-2 and autoimmunity in COVID-19 infection. Eur J Immunol 2024; 54:e2250230. [PMID: 37733584 DOI: 10.1002/eji.202250230] [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: 01/22/2023] [Revised: 08/05/2023] [Accepted: 09/20/2023] [Indexed: 09/23/2023]
Abstract
The effects of SARS-CoV-2 in COVID-19 on the nervous system are incompletely understood. SARS-CoV-2 can infect endothelial cells, neurons, astrocytes, and oligodendrocytes with consequences for the host. There are indications that infection of these CNS-resident cells may result in long-term effects, including emergence of neurodegenerative diseases. Indirect effects of infection with SARS-CoV-2 relate to the induction of autoimmune disease involving molecular mimicry or/and bystander activation of T- and B cells and emergence of autoantibodies against various self-antigens. Data obtained in preclinical models of coronavirus-induced disease gives important clues for the understanding of nervous system-related assault of SARS-CoV-2. The pathophysiology of long-COVID syndrome and post-COVID syndrome in which autoimmunity and immune dysregulation might be the driving forces are still incompletely understood. A better understanding of nervous-system-related immunity in COVID-19 might support the development of therapeutic approaches. In this review, the current understanding of SARS-CoV-2 tropism for the nervous system, the associated immune responses, and diseases are summarized. The data indicates that there is viral tropism of SARS-CoV-2 in the nervous system resulting in various disease conditions. Prevention of SARS-CoV-2 infection by means of vaccination is currently the best strategy for the prevention of subsequent tissue damage involving the nervous system.
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Affiliation(s)
- Robert Weissert
- Department of Neurology, University of Regensburg Hospital, Regensburg, Germany
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19
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Louros N, Schymkowitz J, Rousseau F. Mechanisms and pathology of protein misfolding and aggregation. Nat Rev Mol Cell Biol 2023; 24:912-933. [PMID: 37684425 DOI: 10.1038/s41580-023-00647-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2023] [Indexed: 09/10/2023]
Abstract
Despite advances in machine learning-based protein structure prediction, we are still far from fully understanding how proteins fold into their native conformation. The conventional notion that polypeptides fold spontaneously to their biologically active states has gradually been replaced by our understanding that cellular protein folding often requires context-dependent guidance from molecular chaperones in order to avoid misfolding. Misfolded proteins can aggregate into larger structures, such as amyloid fibrils, which perpetuate the misfolding process, creating a self-reinforcing cascade. A surge in amyloid fibril structures has deepened our comprehension of how a single polypeptide sequence can exhibit multiple amyloid conformations, known as polymorphism. The assembly of these polymorphs is not a random process but is influenced by the specific conditions and tissues in which they originate. This observation suggests that, similar to the folding of native proteins, the kinetics of pathological amyloid assembly are modulated by interactions specific to cells and tissues. Here, we review the current understanding of how intrinsic protein conformational propensities are modulated by physiological and pathological interactions in the cell to shape protein misfolding and aggregation pathology.
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Affiliation(s)
- Nikolaos Louros
- Switch Laboratory, VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium
- Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Joost Schymkowitz
- Switch Laboratory, VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium.
- Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium.
| | - Frederic Rousseau
- Switch Laboratory, VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium.
- Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium.
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20
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Nolan TM, Deliyannis G, Griffith M, Braat S, Allen LF, Audsley J, Chung AW, Ciula M, Gherardin NA, Giles ML, Gordon TP, Grimley SL, Horng L, Jackson DC, Juno JA, Kedzierska K, Kent SJ, Lewin SR, Littlejohn M, McQuilten HA, Mordant FL, Nguyen THO, Soo VP, Price B, Purcell DFJ, Ramanathan P, Redmond SJ, Rockman S, Ruan Z, Sasadeusz J, Simpson JA, Subbarao K, Fabb SA, Payne TJ, Takanashi A, Tan CW, Torresi J, Wang JJ, Wang LF, Al-Wassiti H, Wong CY, Zaloumis S, Pouton CW, Godfrey DI. Interim results from a phase I randomized, placebo-controlled trial of novel SARS-CoV-2 beta variant receptor-binding domain recombinant protein and mRNA vaccines as a 4th dose booster. EBioMedicine 2023; 98:104878. [PMID: 38016322 PMCID: PMC10696466 DOI: 10.1016/j.ebiom.2023.104878] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/18/2023] [Accepted: 11/02/2023] [Indexed: 11/30/2023] Open
Abstract
BACKGROUND SARS-CoV-2 booster vaccination should ideally enhance protection against variants and minimise immune imprinting. This Phase I trial evaluated two vaccines targeting SARS-CoV-2 beta-variant receptor-binding domain (RBD): a recombinant dimeric RBD-human IgG1 Fc-fusion protein, and an mRNA encoding a membrane-anchored RBD. METHODS 76 healthy adults aged 18-64 y, previously triple vaccinated with licensed SARS-CoV-2 vaccines, were randomised to receive a 4th dose of either an adjuvanted (MF59®, CSL Seqirus) protein vaccine (5, 15 or 45 μg, N = 32), mRNA vaccine (10, 20, or 50 μg, N = 32), or placebo (saline, N = 12) at least 90 days after a 3rd boost vaccination or SARS-CoV-2 infection. Bleeds occurred on days 1 (prior to vaccination), 8, and 29. CLINICALTRIALS govNCT05272605. FINDINGS No vaccine-related serious or medically-attended adverse events occurred. The protein vaccine reactogenicity was mild, whereas the mRNA vaccine was moderately reactogenic at higher dose levels. Best anti-RBD antibody responses resulted from the higher doses of each vaccine. A similar pattern was seen with live virus neutralisation and surrogate, and pseudovirus neutralisation assays. Breadth of immune response was demonstrated against BA.5 and more recent omicron subvariants (XBB, XBB.1.5 and BQ.1.1). Binding antibody titres for both vaccines were comparable to those of a licensed bivalent mRNA vaccine. Both vaccines enhanced CD4+ and CD8+ T cell activation. INTERPRETATION There were no safety concerns and the reactogenicity profile was mild and similar to licensed SARS-CoV-2 vaccines. Both vaccines showed strong immune boosting against beta, ancestral and omicron strains. FUNDING Australian Government Medical Research Future Fund, and philanthropies Jack Ma Foundation and IFM investors.
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Affiliation(s)
- Terry M Nolan
- Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection & Immunity, Melbourne, Australia; Murdoch Children's Research Institute, Melbourne, Australia.
| | - Georgia Deliyannis
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Maryanne Griffith
- Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection & Immunity, Melbourne, Australia
| | - Sabine Braat
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Lilith F Allen
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Jennifer Audsley
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Amy W Chung
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Marcin Ciula
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Nicholas A Gherardin
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Michelle L Giles
- Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection & Immunity, Melbourne, Australia
| | - Tom P Gordon
- Department of Immunology, Flinders University and SA Pathology, Flinders Medical Centre, Bedford Park, Adelaide, Australia
| | - Samantha L Grimley
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Lana Horng
- Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection & Immunity, Melbourne, Australia; Murdoch Children's Research Institute, Melbourne, Australia
| | - David C Jackson
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Jennifer A Juno
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Katherine Kedzierska
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia; Global Station for Zoonosis Control, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, Japan
| | - Stephen J Kent
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Sharon R Lewin
- Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection & Immunity, Melbourne, Australia; Victorian Infectious Diseases Service, Royal Melbourne Hospital at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia; Department of Infectious Diseases, Alfred Hospital and Monash University, Melbourne, Australia
| | - Mason Littlejohn
- Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection & Immunity, Melbourne, Australia
| | - Hayley A McQuilten
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Francesca L Mordant
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Thi H O Nguyen
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Vanessa Pac Soo
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Briony Price
- Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection & Immunity, Melbourne, Australia; Murdoch Children's Research Institute, Melbourne, Australia
| | - Damian F J Purcell
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Pradhipa Ramanathan
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Samuel J Redmond
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Steven Rockman
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia; CSL Seqirus, Vaccine Innovation Unit, Parkville, Melbourne, Australia
| | - Zheng Ruan
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Joseph Sasadeusz
- Victorian Infectious Diseases Service, Royal Melbourne Hospital at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia; Department of Infectious Diseases, Alfred Hospital and Monash University, Melbourne, Australia
| | - Julie A Simpson
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Kanta Subbarao
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia; WHO Collaborating Centre for Reference and Research on Influenza at the Peter Doherty Institute for Infection and Immunity, Australia
| | - Stewart A Fabb
- Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - Thomas J Payne
- Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - Asuka Takanashi
- Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - Chee Wah Tan
- Duke NUS Medical School, Programme for Emerging Infectious Diseases, Singapore
| | - Joseph Torresi
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Jing Jing Wang
- Department of Immunology, Flinders University and SA Pathology, Flinders Medical Centre, Bedford Park, Adelaide, Australia
| | - Lin-Fa Wang
- Duke NUS Medical School, Programme for Emerging Infectious Diseases, Singapore
| | | | - Chinn Yi Wong
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Sophie Zaloumis
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Colin W Pouton
- Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - Dale I Godfrey
- Department of Microbiology & Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
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Mir TH, Zargar PA, Sharma A, Jabeen B, Sharma S, Parvaiz MO, Bashir S, Javeed R. Post COVID-19 AA amyloidosis of the kidneys with rapidly progressive renal failure. Prion 2023; 17:111-115. [PMID: 37055928 PMCID: PMC10114959 DOI: 10.1080/19336896.2023.2201151] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 12/15/2022] [Accepted: 01/22/2023] [Indexed: 04/15/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) pandemic has taken the world by a storm, posing a gruelling challenge to the medical fraternity globally. Besides its very high infectivityinfectivity, significant organ dysfunction occurs in critically ill COVID-19 patients, leading to severe morbidity and mortality. Pulmonary involvement is the leading cause of death in these patients to be followed by the cardiovascular involvement. Kidney involvement due to COVID-19 is becoming more discernible with AKI adversely affecting the outcome. Besides AKI, a few cases of collapsing FSGS in genetically vulnerable patients and thrombotic microangiopathies have been reported as well. We report a case of AA amyloidosis of the kidney with a rapidly progressive renal failure and congestive heart failure with preserved left ventricular functions, which complicated a moderate COVID-19 pneumonia providing some clues to a possible association of this novel virus disease with this complication, which needs to be confirmed in future studies.
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Affiliation(s)
- Tajamul H. Mir
- Department of Nephrology, Government Medical College, Srinagar, Jammu and Kashmir, India
- Department of Nephrology, Khyber Medical Institute Nowpora, Srinagar, Jammu and Kashmir, India
| | - Parvaiz A Zargar
- Department of Cardiology, Government Medical College, Srinagar, Jammu and Kashmir, India
| | - Alok Sharma
- Department of Renal Pathology, Dr. Lal Path lab/National Reference lab, New Delhi, India
| | - Bushra Jabeen
- Department of Radiology, SMHS Hospital, Srinagar, Jammu and Kashmir, India
| | - Shephali Sharma
- Department of Renal Pathology, Dr. Lal Path lab/National Reference lab, New Delhi, India
| | - M. Omar Parvaiz
- Department of Medicine, Holy Family Red Crescent Medical College, Dhaka, Bangladesh
| | - Sabah Bashir
- Department of Nephrology, Khyber Medical Institute Nowpora, Srinagar, Jammu and Kashmir, India
| | - Reem Javeed
- Department of Nephrology, Government Medical College, Srinagar, Jammu and Kashmir, India
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22
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Turner S, Laubscher GJ, Khan MA, Kell DB, Pretorius E. Accelerating discovery: A novel flow cytometric method for detecting fibrin(ogen) amyloid microclots using long COVID as a model. Heliyon 2023; 9:e19605. [PMID: 37809592 PMCID: PMC10558872 DOI: 10.1016/j.heliyon.2023.e19605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 08/24/2023] [Accepted: 08/28/2023] [Indexed: 10/10/2023] Open
Abstract
Long COVID has become a significant global health and economic burden, yet there are currently no established methods or diagnostic tools to identify which patients might benefit from specific treatments. One of the major pathophysiological factors contributing to Long COVID is the presence of hypercoagulability; this results in insoluble amyloid microclots that are resistant to fibrinolysis. Our previous research using fluorescence microscopy has demonstrated a significant amyloid microclot load in Long COVID patients. However, this approach lacked the elements of statistical robustness, objectivity, and rapid throughput. In the current study, we have used imaging flow cytometry for the first time to show a significantly increased concentration and size of these microclots. We identified notable variations in size and fluorescence between microclots in Long COVID and those of controls even using a 20× objective. By combining cell imaging and the high-event-rate and full-sample analysis nature of a conventional flow cytometer, imaging flow cytometry can eliminate erroneous results and increase accuracy in gating and analysis beyond what pure quantitative measurements from conventional flow cytometry can provide. Although imaging flow cytometry was used in our study, our results suggest that the signals indicating the presence of microclots should be easily detectable using a conventional flow cytometer. Flow cytometry is a more widely available technique than fluorescence microscopy and has been used in pathology laboratories for decades, rendering it a potentially more suitable and accessible method for detecting microclots in individuals suffering from Long COVID or conditions with similar pathology, such as myalgic encephalomyelitis.
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Affiliation(s)
- Simone Turner
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1, Matieland, 7602, South Africa
| | | | - M Asad Khan
- Respiratory Medicine, Manchester University Hospitals, Wythenshawe Hospital, Manchester, M23 9LT, United Kingdom
| | - Douglas B. Kell
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1, Matieland, 7602, South Africa
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, L69 7ZB, UK
- The Novo Nordisk Foundation Centre for Biosustainability, Technical University of Denmark, Kemitorvet 200, 2800, Kgs Lyngby, Denmark
| | - Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1, Matieland, 7602, South Africa
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, L69 7ZB, UK
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23
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Cao S, Song Z, Rong J, Andrikopoulos N, Liang X, Wang Y, Peng G, Ding F, Ke PC. Spike Protein Fragments Promote Alzheimer's Amyloidogenesis. ACS APPLIED MATERIALS & INTERFACES 2023; 15:40317-40329. [PMID: 37585091 PMCID: PMC10480042 DOI: 10.1021/acsami.3c09815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
Alzheimer's disease (AD) is a major cause of dementia inducing memory loss, cognitive decline, and mortality among the aging population. While the amyloid aggregation of peptide Aβ has long been implicated in neurodegeneration in AD, primarily through the production of toxic polymorphic aggregates and reactive oxygen species, viral infection has a less explicit role in the etiology of the brain disease. On the other hand, while the COVID-19 pandemic is known to harm human organs and function, its adverse effects on AD pathobiology and other human conditions remain unclear. Here we first identified the amyloidogenic potential of 1058HGVVFLHVTYV1068, a short fragment of the spike protein of SARS-CoV-2 coronavirus. The peptide fragment was found to be toxic and displayed a high binding propensity for the amyloidogenic segments of Aβ, thereby promoting the aggregation and toxicity of the peptide in vitro and in silico, while retarding the hatching and survival of zebrafish embryos upon exposure. Our study implicated SARS-CoV-2 viral infection as a potential contributor to AD pathogenesis, a little explored area in our quest for understanding and overcoming Long Covid.
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Affiliation(s)
- Sujian Cao
- Nanomedicine Center, The Great Bay Area National Institute for Nanotechnology Innovation, 136 Kaiyuan Avenue, Guangzhou, 510700, China
| | - Zhiyuan Song
- Department of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA
| | - Jinyu Rong
- College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Nicholas Andrikopoulos
- Nanomedicine Center, The Great Bay Area National Institute for Nanotechnology Innovation, 136 Kaiyuan Avenue, Guangzhou, 510700, China
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Xiufang Liang
- Nanomedicine Center, The Great Bay Area National Institute for Nanotechnology Innovation, 136 Kaiyuan Avenue, Guangzhou, 510700, China
- School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006, China
| | - Yue Wang
- Nanomedicine Center, The Great Bay Area National Institute for Nanotechnology Innovation, 136 Kaiyuan Avenue, Guangzhou, 510700, China
- School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou, 510006, China
| | - Guotao Peng
- College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Feng Ding
- Department of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA
| | - Pu Chun Ke
- Nanomedicine Center, The Great Bay Area National Institute for Nanotechnology Innovation, 136 Kaiyuan Avenue, Guangzhou, 510700, China
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
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24
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Parry PI, Lefringhausen A, Turni C, Neil CJ, Cosford R, Hudson NJ, Gillespie J. 'Spikeopathy': COVID-19 Spike Protein Is Pathogenic, from Both Virus and Vaccine mRNA. Biomedicines 2023; 11:2287. [PMID: 37626783 PMCID: PMC10452662 DOI: 10.3390/biomedicines11082287] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/17/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
The COVID-19 pandemic caused much illness, many deaths, and profound disruption to society. The production of 'safe and effective' vaccines was a key public health target. Sadly, unprecedented high rates of adverse events have overshadowed the benefits. This two-part narrative review presents evidence for the widespread harms of novel product COVID-19 mRNA and adenovectorDNA vaccines and is novel in attempting to provide a thorough overview of harms arising from the new technology in vaccines that relied on human cells producing a foreign antigen that has evidence of pathogenicity. This first paper explores peer-reviewed data counter to the 'safe and effective' narrative attached to these new technologies. Spike protein pathogenicity, termed 'spikeopathy', whether from the SARS-CoV-2 virus or produced by vaccine gene codes, akin to a 'synthetic virus', is increasingly understood in terms of molecular biology and pathophysiology. Pharmacokinetic transfection through body tissues distant from the injection site by lipid-nanoparticles or viral-vector carriers means that 'spikeopathy' can affect many organs. The inflammatory properties of the nanoparticles used to ferry mRNA; N1-methylpseudouridine employed to prolong synthetic mRNA function; the widespread biodistribution of the mRNA and DNA codes and translated spike proteins, and autoimmunity via human production of foreign proteins, contribute to harmful effects. This paper reviews autoimmune, cardiovascular, neurological, potential oncological effects, and autopsy evidence for spikeopathy. With many gene-based therapeutic technologies planned, a re-evaluation is necessary and timely.
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Affiliation(s)
- Peter I. Parry
- Children’s Health Research Clinical Unit, Faculty of Medicine, The University of Queensland, South Brisbane, QLD 4101, Australia
- Department of Psychiatry, College of Medicine and Public Health, Flinders University, Bedford Park, SA 5042, Australia
| | - Astrid Lefringhausen
- Children’s Health Defence (Australia Chapter), Huskisson, NSW 2540, Australia; (A.L.); (R.C.); (J.G.)
| | - Conny Turni
- Microbiology Research, QAAFI (Queensland Alliance for Agriculture and Food Innovation), The University of Queensland, St. Lucia, QLD 4072, Australia;
| | - Christopher J. Neil
- Department of Medicine, University of Melbourne, Melbourne, VIC 3010, Australia;
| | - Robyn Cosford
- Children’s Health Defence (Australia Chapter), Huskisson, NSW 2540, Australia; (A.L.); (R.C.); (J.G.)
| | - Nicholas J. Hudson
- School of Agriculture and Food Science, The University of Queensland, Brisbane, QLD 4072, Australia;
| | - Julian Gillespie
- Children’s Health Defence (Australia Chapter), Huskisson, NSW 2540, Australia; (A.L.); (R.C.); (J.G.)
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25
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Kell DB, Pretorius E. Are fibrinaloid microclots a cause of autoimmunity in Long Covid and other post-infection diseases? Biochem J 2023; 480:1217-1240. [PMID: 37584410 DOI: 10.1042/bcj20230241] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 08/17/2023]
Abstract
It is now well established that the blood-clotting protein fibrinogen can polymerise into an anomalous form of fibrin that is amyloid in character; the resultant clots and microclots entrap many other molecules, stain with fluorogenic amyloid stains, are rather resistant to fibrinolysis, can block up microcapillaries, are implicated in a variety of diseases including Long COVID, and have been referred to as fibrinaloids. A necessary corollary of this anomalous polymerisation is the generation of novel epitopes in proteins that would normally be seen as 'self', and otherwise immunologically silent. The precise conformation of the resulting fibrinaloid clots (that, as with prions and classical amyloid proteins, can adopt multiple, stable conformations) must depend on the existing small molecules and metal ions that the fibrinogen may (and is some cases is known to) have bound before polymerisation. Any such novel epitopes, however, are likely to lead to the generation of autoantibodies. A convergent phenomenology, including distinct conformations and seeding of the anomalous form for initiation and propagation, is emerging to link knowledge in prions, prionoids, amyloids and now fibrinaloids. We here summarise the evidence for the above reasoning, which has substantial implications for our understanding of the genesis of autoimmunity (and the possible prevention thereof) based on the primary process of fibrinaloid formation.
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Affiliation(s)
- Douglas B Kell
- Department of Biochemistry, Cell and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L69 7ZB, U.K
- The Novo Nordisk Foundation Centre for Biosustainability, Technical University of Denmark, Kemitorvet 200, 2800 Kgs Lyngby, Denmark
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch 7602, South Africa
| | - Etheresia Pretorius
- Department of Biochemistry, Cell and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L69 7ZB, U.K
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch 7602, South Africa
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26
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Chesney AD, Maiti B, Hansmann UHE. SARS-COV-2 spike protein fragment eases amyloidogenesis of α-synuclein. J Chem Phys 2023; 159:015103. [PMID: 37409768 PMCID: PMC10328560 DOI: 10.1063/5.0157331] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 06/19/2023] [Indexed: 07/07/2023] Open
Abstract
Parkinson's disease is accompanied by the presence of amyloids in the brain that are formed of α-synuclein chains. The correlation between COVID-19 and the onset of Parkinson's disease led to the idea that amyloidogenic segments in SARS-COV-2 proteins can induce aggregation of α-synuclein. Using molecular dynamic simulations, we show that the fragment FKNIDGYFKI of the spike protein, which is unique for SARS-COV-2, preferentially shifts the ensemble of α-synuclein monomer toward rod-like fibril seeding conformations and, at the same time, differentially stabilizes this polymorph over the competing twister-like structure. Our results are compared with earlier work relying on a different protein fragment that is not specific for SARS-COV-2.
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Affiliation(s)
- Andrew D. Chesney
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, USA
| | - Buddhadev Maiti
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, USA
| | - Ulrich H. E. Hansmann
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, USA
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27
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Milton NGN. SARS-CoV-2 amyloid, is COVID-19-exacerbated dementia an amyloid disorder in the making? FRONTIERS IN DEMENTIA 2023; 2:1233340. [PMID: 39081980 PMCID: PMC11285677 DOI: 10.3389/frdem.2023.1233340] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 06/26/2023] [Indexed: 08/02/2024]
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28
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Nunes JM, Kell DB, Pretorius E. Cardiovascular and haematological pathology in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS): A role for viruses. Blood Rev 2023; 60:101075. [PMID: 36963989 PMCID: PMC10027292 DOI: 10.1016/j.blre.2023.101075] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 03/25/2023]
Abstract
ME/CFS is a debilitating chronic condition that often develops after viral or bacterial infection. Insight from the study of Long COVID/Post Acute Sequelae of COVID-19 (PASC), the post-viral syndrome associated with SARS-CoV-2 infection, might prove to be useful for understanding pathophysiological mechanisms of ME/CFS. Disease presentation is similar between the two conditions, and a subset of Long COVID patients meet the diagnostic criteria for ME/CFS. Since Long COVID is characterized by significant vascular pathology - including endothelial dysfunction, coagulopathy, and vascular dysregulation - the question of whether or not the same biological abnormalities are of significance in ME/CFS arises. Cardiac abnormalities have for a while now been documented in ME/CFS cohorts, with recent studies demonstrating major deficits in cerebral blood flow, and hence vascular dysregulation. A growing body of research is demonstrating that ME/CFS is accompanied by platelet hyperactivation, anomalous clotting, a procoagulant phenotype, and endothelial dysfunction. Endothelial damage and dysregulated clotting can impair substance exchange between blood and tissues, and result in hypoperfusion, which may contribute to the manifestation of certain ME/CFS symptoms. Here we review the ME/CFS literature to summarize cardiovascular and haematological findings documented in patients with the condition, and, in this context, briefly discuss the potential role of previously-implicated pathogens. Overall, cardiac and haematological abnormalities are present within ME/CFS cohorts. While atherosclerotic heart disease is not significantly associated with ME/CFS, suboptimal cardiovascular function defined by reduced cardiac output, impaired cerebral blood flow, and vascular dysregulation are, and these abnormalities do not appear to be influenced by deconditioning. Rather, these cardiac abnormalities may result from dysfunction in the (autonomic) nervous system. Plenty of recently published studies are demonstrating significant platelet hyperactivity and endothelial dysfunction in ME/CFS, as well as anomalous clotting processes. It is of particular importance to determine to what extent these cardiovascular and haematological abnormalities contribute to symptom severity, and if these two systems can be targeted for therapeutic purposes. Viral reservoirs of herpesviruses exist in ME/CFS, and most likely contribute to cardiovascular and haematological dysfunction directly or indirectly. This review highlights the potential of studying cardiac functioning, the vasculature, and coagulation system in ME/CFS.
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Affiliation(s)
- Jean M Nunes
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1, Matieland 7602, South Africa.
| | - Douglas B Kell
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1, Matieland 7602, South Africa; Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Crown St, Liverpool L69 7ZB, UK; The Novo Nordisk Foundation Centre for Biosustainability, Building 220, Chemitorvet 200, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.
| | - Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1, Matieland 7602, South Africa; Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Crown St, Liverpool L69 7ZB, UK.
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Del Carpio-Orantes L. Etiopathogenic theories about long COVID. World J Virol 2023; 12:204-208. [PMID: 37396704 PMCID: PMC10311581 DOI: 10.5501/wjv.v12.i3.204] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 04/08/2023] [Accepted: 05/12/2023] [Indexed: 06/21/2023] Open
Abstract
The main etiopathogenic theories of long coronavirus disease (COVID) are listed and a conjunction of them is carried out with the objective of deciphering the pathophysiology of the entity, finally the main lines of treatment existing in real life are discussed (Paxlovid, use of antibiotics in dysbiosis, triple anticoagulant therapy, temelimab).
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Affiliation(s)
- Luis Del Carpio-Orantes
- Department of Internal Medicine, Virology, Research, Study Group for the Diagnosis and Treatment of COVID-19 in Veracruz, Veracruz 91900, Veracruz, Mexico
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30
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Leung WY, Wu HHL, Floyd L, Ponnusamy A, Chinnadurai R. COVID-19 Infection and Vaccination and Its Relation to Amyloidosis: What Do We Know Currently? Vaccines (Basel) 2023; 11:1139. [PMID: 37514955 PMCID: PMC10383215 DOI: 10.3390/vaccines11071139] [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: 04/29/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
Amyloidosis is a complex disorder characterized by deposited insoluble fibrillar proteins which misfold into β-pleated sheets. The pathogenesis of amyloidosis can vary but can be the result of immune dysregulation that occurs from sustained high inflammatory states, often known as AA amyloidosis. Multi-organ involvement including hepatic, gastrointestinal, renal, cardiac and immunological pathological manifestations has been observed amongst individuals presenting with amyloidosis. The recent global pandemic of severe acute respiratory syndrome coronavirus 2, also referred to as coronavirus 2019 (COVID-19), has been shown to be associated with multiple health complications, many of which are similar to those seen in amyloidosis. Though COVID-19 is recognized primarily as a respiratory disease, it has since been found to have a range of extra-pulmonary manifestations, many of which are observed in patients with amyloidosis. These include features of oxidative stress, chronic inflammation and thrombotic risks. It is well known that viral illnesses have been associated with the triggering of autoimmune conditions of which amyloidosis is no different. Over the recent months, reports of new-onset and relapsed disease following COVID-19 infection and vaccination have been published. Despite this, the exact pathophysiological associations of COVID-19 and amyloidosis remain unclear. We present a scoping review based on our systematic search of available evidence relating to amyloidosis, COVID-19 infection and COVID-19 vaccination, evaluating current perspectives and providing insight into knowledge gaps that still needs to be addressed going forward.
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Affiliation(s)
- Wing-Yin Leung
- Department of Renal Medicine, Lancashire Teaching Hospitals NHS Foundation Trust, Preston PR2 9HT, UK
| | - Henry H L Wu
- Renal Research Laboratory, Kolling Institute of Medical Research, Royal North Shore Hospital & The University of Sydney, Sydney, NSW 2065, Australia
| | - Lauren Floyd
- Department of Renal Medicine, Lancashire Teaching Hospitals NHS Foundation Trust, Preston PR2 9HT, UK
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PG, UK
| | - Arvind Ponnusamy
- Department of Renal Medicine, Lancashire Teaching Hospitals NHS Foundation Trust, Preston PR2 9HT, UK
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PG, UK
| | - Rajkumar Chinnadurai
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PG, UK
- Department of Renal Medicine, Salford Royal Hospital, Northern Care Alliance Foundation Trust, Salford M6 8HD, UK
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Perumal R, Shunmugam L, Naidoo K, Wilkins D, Garzino-Demo A, Brechot C, Vahlne A, Nikolich J. Biological mechanisms underpinning the development of long COVID. iScience 2023; 26:106935. [PMID: 37265584 PMCID: PMC10193768 DOI: 10.1016/j.isci.2023.106935] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
As COVID-19 evolves from a pandemic to an endemic disease, the already staggering number of people that have been or will be infected with SARS-CoV-2 is only destined to increase, and the majority of humanity will be infected. It is well understood that COVID-19, like many other viral infections, leaves a significant fraction of the infected with prolonged consequences. Continued high number of SARS-CoV-2 infections, viral evolution with escape from post-infection and vaccinal immunity, and reinfections heighten the potential impact of Long COVID. Hence, the impact of COVID-19 on human health will be seen for years to come until more effective vaccines and pharmaceutical treatments become available. To that effect, it is imperative that the mechanisms underlying the clinical manifestations of Long COVID be elucidated. In this article, we provide an in-depth analysis of the evidence on several potential mechanisms of Long COVID and discuss their relevance to its pathogenesis.
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Affiliation(s)
- Rubeshan Perumal
- South African Medical Research Council (SAMRC)-CAPRISA HIV-TB Pathogenesis and Treatment Research Unit, Centre for the AIDS Programme of Research in South Africa (CAPRISA), Durban 4001, South Africa
- Department of Pulmonology and Critical Care, Division of Internal Medicine, School of Clinical Medicine, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban 4001, South Africa
- Department of Immunobiology and the University of Arizona Center on Aging, University of Arizona College of Medicine-Tucson, Tucson, AZ 85724, USA
| | - Letitia Shunmugam
- South African Medical Research Council (SAMRC)-CAPRISA HIV-TB Pathogenesis and Treatment Research Unit, Centre for the AIDS Programme of Research in South Africa (CAPRISA), Durban 4001, South Africa
| | - Kogieleum Naidoo
- South African Medical Research Council (SAMRC)-CAPRISA HIV-TB Pathogenesis and Treatment Research Unit, Centre for the AIDS Programme of Research in South Africa (CAPRISA), Durban 4001, South Africa
| | - Dave Wilkins
- The Global Virus Network, Baltimore, MD 21201, USA
| | - Alfredo Garzino-Demo
- The Global Virus Network, Baltimore, MD 21201, USA
- Department of Molecular Medicine, University of Padova, Padova 1- 35129, Italy
| | - Christian Brechot
- The Global Virus Network, Baltimore, MD 21201, USA
- Infectious Disease and International Health, University of South Florida, Tampa, FL 33620, USA
| | - Anders Vahlne
- The Global Virus Network, Baltimore, MD 21201, USA
- Division of Clinical Microbiology, Karolinska Institute, Stockholm 17165, Sweden
| | - Janko Nikolich
- The Global Virus Network, Baltimore, MD 21201, USA
- The Aegis Consortium for Pandemic-Free Future, University of Arizona Health Sciences, University of Arizona College of Medicine-Tucson, Tucson, AZ 85724, USA
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32
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Barron LD. 'A careful disorderliness' in biomolecular structure revealed by Raman optical activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 300:122959. [PMID: 37269652 DOI: 10.1016/j.saa.2023.122959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/29/2023] [Indexed: 06/05/2023]
Abstract
Following its first observation 50 years ago Raman optical activity (ROA), which refers to a circular polarization dependence of Raman scattering from chiral molecules, has evolved into a powerful chiroptical spectroscopy for studying a large range of biomolecules in aqueous solution. Among other things ROA provides information about motif and fold as well as secondary structure of proteins; structure of carbohydrates and nucleic acids; polypeptide and carbohydrate structure of intact glycoproteins; and protein and nucleic acid structure of intact viruses. Quantum chemical simulations of observed Raman optical activity spectra can provide complete three-dimensional structures of biomolecules, together with information about conformational dynamics. This article reviews how ROA has provided new insight into the structure of unfolded/disordered states and sequences, ranging from the complete disorder of the random coil to the more controlled type of disorder exemplified by poly L-proline II helix in proteins, high mannose glycan chains in glycoproteins and constrained dynamic states of nucleic acids. Possible roles for this 'careful disorderliness' in biomolecular function, misfunction and disease are discussed, especially amyloid fibril formation.
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Affiliation(s)
- Laurence D Barron
- Department of Chemistry, University of Glasgow, Glasgow G12 8QQ, UK.
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33
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Halma MTJ, Plothe C, Marik P, Lawrie TA. Strategies for the Management of Spike Protein-Related Pathology. Microorganisms 2023; 11:1308. [PMID: 37317282 PMCID: PMC10222799 DOI: 10.3390/microorganisms11051308] [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: 03/16/2023] [Revised: 05/04/2023] [Accepted: 05/10/2023] [Indexed: 06/16/2023] Open
Abstract
In the wake of the COVID-19 crisis, a need has arisen to prevent and treat two related conditions, COVID-19 vaccine injury and long COVID-19, both of which can trace at least part of their aetiology to the spike protein, which can cause harm through several mechanisms. One significant mechanism of harm is vascular, and it is mediated by the spike protein, a common element of the COVID-19 illness, and it is related to receiving a COVID-19 vaccine. Given the significant number of people experiencing these two related conditions, it is imperative to develop treatment protocols, as well as to consider the diversity of people experiencing long COVID-19 and vaccine injury. This review summarizes the known treatment options for long COVID-19 and vaccine injury, their mechanisms, and their evidentiary basis.
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Affiliation(s)
| | - Christof Plothe
- Center for Biophysical Osteopathy, Am Wegweiser 27, 55232 Alzey, Germany
| | - Paul Marik
- Front Line COVID-19 Critical Care Alliance (FLCCC), 2001 L St. NW Suite 500, Washington, DC 20036, USA;
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34
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Chesney AD, Maiti B, Hansmann UHE. SARS-COV-2 Spike Protein Fragment eases Amyloidogenesis of α-Synuclein. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.06.539715. [PMID: 37214999 PMCID: PMC10197603 DOI: 10.1101/2023.05.06.539715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Parkinson's Disease is accompanied by presence of amyloids in the brain formed of α-synuclein chains. Correlation between COVID-19 and the onset of Parkinson's disease let to the idea that amyloidogenic segments in SARS-COV-2 proteins can induce aggregation of α-synuclein. Using molecular dynamic simulations, we show that the fragment FKNIDGYFKI of the spike protein, which is unique for SARS-COV-2, shifts preferentially the ensemble of α-synuclein monomer towards rod-like fibril seeding conformations, and at the same time stabilizes differentially this polymorph over the competing twister-like structure. Our results are compared with earlier work relying on a different protein fragment that is not specific for SARS-COV-2.
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35
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Del Carpio-Orantes L, Aguilar-Silva A. [Intertwined long COVID theories to explain its etiopathogenesis]. REVISTA MEDICA DEL INSTITUTO MEXICANO DEL SEGURO SOCIAL 2023; 61:256-257. [PMID: 37216305 PMCID: PMC10437229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This editorial lists the main current theories on long COVID, such as the theory of viral persistence and the one of immunothrombosis associated with deregulation of the immune system; it is discussed as well their interrelation, which finally explains the etiopathogenesis and physiopathology of this new syndrome that afflicts the survivors of COVID-19; it is also discussed the link between viral persistence with the formation of amyloid microthrombi based on the hypothesis that the spike protein causes amyloidogenesis, inducing organic chronic damage that will characterize long COVID.
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Affiliation(s)
- Luis Del Carpio-Orantes
- Instituto Mexicano del Seguro Social, Hospital General de Zona No. 71, Servicio de Medicina Interna. Veracruz, Veracruz, México Instituto Mexicano del Seguro SocialMéxico
| | - Andrés Aguilar-Silva
- Instituto Mexicano del Seguro Social, Centro Médico Nacional “Lic. Adolfo Ruiz Cortines”, Hospital de Especialidades No. 14, Servicio de Cardiología. Veracruz, Veracruz, MéxicoInstituto Mexicano del Seguro SocialMéxico
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36
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Tayeb-Fligelman E, Bowler JT, Tai CE, Sawaya MR, Jiang YX, Garcia G, Griner SL, Cheng X, Salwinski L, Lutter L, Seidler PM, Lu J, Rosenberg GM, Hou K, Abskharon R, Pan H, Zee CT, Boyer DR, Li Y, Anderson DH, Murray KA, Falcon G, Cascio D, Saelices L, Damoiseaux R, Arumugaswami V, Guo F, Eisenberg DS. Low complexity domains of the nucleocapsid protein of SARS-CoV-2 form amyloid fibrils. Nat Commun 2023; 14:2379. [PMID: 37185252 PMCID: PMC10127185 DOI: 10.1038/s41467-023-37865-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 04/03/2023] [Indexed: 05/17/2023] Open
Abstract
The self-assembly of the Nucleocapsid protein (NCAP) of SARS-CoV-2 is crucial for its function. Computational analysis of the amino acid sequence of NCAP reveals low-complexity domains (LCDs) akin to LCDs in other proteins known to self-assemble as phase separation droplets and amyloid fibrils. Previous reports have described NCAP's propensity to phase-separate. Here we show that the central LCD of NCAP is capable of both, phase separation and amyloid formation. Within this central LCD we identified three adhesive segments and determined the atomic structure of the fibrils formed by each. Those structures guided the design of G12, a peptide that interferes with the self-assembly of NCAP and demonstrates antiviral activity in SARS-CoV-2 infected cells. Our work, therefore, demonstrates the amyloid form of the central LCD of NCAP and suggests that amyloidogenic segments of NCAP could be targeted for drug development.
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Affiliation(s)
- Einav Tayeb-Fligelman
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Jeannette T Bowler
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Christen E Tai
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
| | - Michael R Sawaya
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
- UCLA-DOE Institute of Genomics and Proteomics, UCLA, Los Angeles, CA, 90095, USA
| | - Yi Xiao Jiang
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Gustavo Garcia
- Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, CA, 90095, USA
| | - Sarah L Griner
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Xinyi Cheng
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Lukasz Salwinski
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- UCLA-DOE Institute of Genomics and Proteomics, UCLA, Los Angeles, CA, 90095, USA
| | - Liisa Lutter
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Paul M Seidler
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California School of Pharmacy, Los Angeles, CA, 90089-9121, USA
| | - Jiahui Lu
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Gregory M Rosenberg
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Ke Hou
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Romany Abskharon
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Hope Pan
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Chih-Te Zee
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
| | - David R Boyer
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Yan Li
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
| | - Daniel H Anderson
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Kevin A Murray
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA
| | - Genesis Falcon
- UCLA-DOE Institute of Genomics and Proteomics, UCLA, Los Angeles, CA, 90095, USA
| | - Duilio Cascio
- UCLA-DOE Institute of Genomics and Proteomics, UCLA, Los Angeles, CA, 90095, USA
| | - Lorena Saelices
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Center for Alzheimer's and Neurodegenerative Diseases, Department of Biophysics, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Robert Damoiseaux
- Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, CA, 90095, USA
- Department of Bioengineering, UCLA, Los Angeles, CA, 90095, USA
- California NanoSystems Institute, UCLA, Los Angeles, CA, 90095, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, UCLA, Los Angeles, CA, 90095, USA
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, 90095, USA
| | - Vaithilingaraja Arumugaswami
- Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, CA, 90095, USA
- California NanoSystems Institute, UCLA, Los Angeles, CA, 90095, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, UCLA, Los Angeles, CA, 90095, USA
| | - Feng Guo
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, 90095, USA
| | - David S Eisenberg
- Department of Biological Chemistry, UCLA, Los Angeles, CA, 90095, USA.
- Molecular Biology Institute, UCLA, Los Angeles, CA, 90095, USA.
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA, 90095, USA.
- Howard Hughes Medical Institute, Los Angeles, CA, 90095, USA.
- UCLA-DOE Institute of Genomics and Proteomics, UCLA, Los Angeles, CA, 90095, USA.
- California NanoSystems Institute, UCLA, Los Angeles, CA, 90095, USA.
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37
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Monti A, Vitagliano L, Caporale A, Ruvo M, Doti N. Targeting Protein-Protein Interfaces with Peptides: The Contribution of Chemical Combinatorial Peptide Library Approaches. Int J Mol Sci 2023; 24:ijms24097842. [PMID: 37175549 PMCID: PMC10178479 DOI: 10.3390/ijms24097842] [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: 03/30/2023] [Revised: 04/22/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
Protein-protein interfaces play fundamental roles in the molecular mechanisms underlying pathophysiological pathways and are important targets for the design of compounds of therapeutic interest. However, the identification of binding sites on protein surfaces and the development of modulators of protein-protein interactions still represent a major challenge due to their highly dynamic and extensive interfacial areas. Over the years, multiple strategies including structural, computational, and combinatorial approaches have been developed to characterize PPI and to date, several successful examples of small molecules, antibodies, peptides, and aptamers able to modulate these interfaces have been determined. Notably, peptides are a particularly useful tool for inhibiting PPIs due to their exquisite potency, specificity, and selectivity. Here, after an overview of PPIs and of the commonly used approaches to identify and characterize them, we describe and evaluate the impact of chemical peptide libraries in medicinal chemistry with a special focus on the results achieved through recent applications of this methodology. Finally, we also discuss the role that this methodology can have in the framework of the opportunities, and challenges that the application of new predictive approaches based on artificial intelligence is generating in structural biology.
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Affiliation(s)
- Alessandra Monti
- Institute of Biostructures and Bioimaging (IBB), National Research Council (CNR), 80131 Napoli, Italy
| | - Luigi Vitagliano
- Institute of Biostructures and Bioimaging (IBB), National Research Council (CNR), 80131 Napoli, Italy
| | - Andrea Caporale
- Institute of Crystallography (IC), National Research Council (CNR), Strada Statale 14 km 163.5, Basovizza, 34149 Triese, Italy
| | - Menotti Ruvo
- Institute of Biostructures and Bioimaging (IBB), National Research Council (CNR), 80131 Napoli, Italy
| | - Nunzianna Doti
- Institute of Biostructures and Bioimaging (IBB), National Research Council (CNR), 80131 Napoli, Italy
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38
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Surguchov A, Emamzadeh FN, Titova M, Surguchev AA. Controversial Properties of Amyloidogenic Proteins and Peptides: New Data in the COVID Era. Biomedicines 2023; 11:1215. [PMID: 37189833 PMCID: PMC10136278 DOI: 10.3390/biomedicines11041215] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/12/2023] [Accepted: 04/17/2023] [Indexed: 05/17/2023] Open
Abstract
For a long time, studies of amyloidogenic proteins and peptides (amyloidogenic PPs) have been focused basically on their harmful properties and association with diseases. A vast amount of research has investigated the structure of pathogenic amyloids forming fibrous deposits within or around cells and the mechanisms of their detrimental actions. Much less has been known about the physiologic functions and beneficial properties of amyloidogenic PPs. At the same time, amyloidogenic PPs have various useful properties. For example, they may render neurons resistant to viral infection and propagation and stimulate autophagy. We discuss here some of amyloidogenic PPs' detrimental and beneficial properties using as examples beta-amyloid (β-amyloid), implicated in the pathogenesis of Alzheimer's disease (AD), and α-synuclein-one of the hallmarks of Parkinson's disease (PD). Recently amyloidogenic PPs' antiviral and antimicrobial properties have attracted attention because of the COVID-19 pandemic and the growing threat of other viral and bacterial-induced diseases. Importantly, several COVID-19 viral proteins, e.g., spike, nucleocapsid, and envelope proteins, may become amyloidogenic after infection and combine their harmful action with the effect of endogenous APPs. A central area of current investigations is the study of the structural properties of amyloidogenic PPs, defining their beneficial and harmful properties, and identifying triggers that transform physiologically important amyloidogenic PPs into vicious substances. These directions are of paramount importance during the current SARS-CoV-2 global health crisis.
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Affiliation(s)
- Andrei Surguchov
- Department of Neurology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Fatemeh N. Emamzadeh
- Analytical Development Department, Iovance Biotherapeutics, Inc., Tampa, FL 33612, USA
| | - Mariya Titova
- The College of Liberal Arts & Sciences, Kansas University, Lawrence, KS 66045, USA
| | - Alexei A. Surguchev
- Department of Surgery, Section of Otolaryngology, Yale School of Medicine, Yale University, New Haven, CT 06520, USA
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39
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Chesney A, Maiti B, Hansmann UH. Human Amylin in the Presence of SARS-COV-2 Protein Fragments. ACS OMEGA 2023; 8:12501-12511. [PMID: 37033831 PMCID: PMC10077547 DOI: 10.1021/acsomega.3c00621] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/13/2023] [Indexed: 05/30/2023]
Abstract
COVID-19 can lead to the onset of type-II diabetes, which is associated with the aggregation of islet amyloid polypeptides, also called amylin. Using molecular dynamics simulations, we investigate how the equilibrium between amylin monomers in its functional form and fibrils associated with diabetes is altered in the presence of SARS-COV-2 protein fragments. For this purpose, we study the interaction between the fragment SFYVYSRVK of the envelope protein or the fragment FKNIDGYFKI of the spike protein with the monomer and two amylin fibril models. Our results are compared with earlier work studying such interactions for the two different proteins.
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40
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Escudero-Pérez B, Lalande A, Mathieu C, Lawrence P. Host–Pathogen Interactions Influencing Zoonotic Spillover Potential and Transmission in Humans. Viruses 2023; 15:v15030599. [PMID: 36992308 PMCID: PMC10060007 DOI: 10.3390/v15030599] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/13/2023] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
Emerging infectious diseases of zoonotic origin are an ever-increasing public health risk and economic burden. The factors that determine if and when an animal virus is able to spill over into the human population with sufficient success to achieve ongoing transmission in humans are complex and dynamic. We are currently unable to fully predict which pathogens may appear in humans, where and with what impact. In this review, we highlight current knowledge of the key host–pathogen interactions known to influence zoonotic spillover potential and transmission in humans, with a particular focus on two important human viruses of zoonotic origin, the Nipah virus and the Ebola virus. Namely, key factors determining spillover potential include cellular and tissue tropism, as well as the virulence and pathogenic characteristics of the pathogen and the capacity of the pathogen to adapt and evolve within a novel host environment. We also detail our emerging understanding of the importance of steric hindrance of host cell factors by viral proteins using a “flytrap”-type mechanism of protein amyloidogenesis that could be crucial in developing future antiviral therapies against emerging pathogens. Finally, we discuss strategies to prepare for and to reduce the frequency of zoonotic spillover occurrences in order to minimize the risk of new outbreaks.
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Affiliation(s)
- Beatriz Escudero-Pérez
- WHO Collaborating Centre for Arbovirus and Haemorrhagic Fever Reference and Research, Bernhard Nocht Institute for Tropical Medicine, 20359 Hamburg, Germany
- German Center for Infection Research (DZIF), Partner Site Hamburg-Luebeck-Borstel-Reims, 38124 Braunschweig, Germany
| | - Alexandre Lalande
- CIRI (Centre International de Recherche en Infectiologie), Team Neuro-Invasion, TROpism and VIRal Encephalitis, INSERM U1111, CNRS UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007 Lyon, France
| | - Cyrille Mathieu
- CIRI (Centre International de Recherche en Infectiologie), Team Neuro-Invasion, TROpism and VIRal Encephalitis, INSERM U1111, CNRS UMR5308, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 69007 Lyon, France
| | - Philip Lawrence
- CONFLUENCE: Sciences et Humanités (EA 1598), Université Catholique de Lyon (UCLy), 69002 Lyon, France
- Correspondence:
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Does the SARS-CoV-2 Spike Receptor-Binding Domain Hamper the Amyloid Transformation of Alpha-Synuclein after All? Biomedicines 2023; 11:biomedicines11020498. [PMID: 36831034 PMCID: PMC9953139 DOI: 10.3390/biomedicines11020498] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/30/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
Interactions of key amyloidogenic proteins with SARS-CoV-2 proteins may be one of the causes of expanding and delayed post-COVID-19 neurodegenerative processes. Furthermore, such abnormal effects can be caused by proteins and their fragments circulating in the body during vaccination. The aim of our work was to analyze the effect of the receptor-binding domain of the coronavirus S-protein domain (RBD) on alpha-synuclein amyloid aggregation. Molecular modeling showed that the predicted RBD complex with monomeric alpha-synuclein is stable over 100 ns of molecular dynamics. Analysis of the interactions of RBD with the amyloid form of alpha-synuclein showed that during molecular dynamics for 200 ns the number of contacts is markedly higher than that for the monomeric form. The formation of the RBD complex with the alpha-synuclein monomer was confirmed immunochemically by immobilization of RBD on its specific receptor ACE2. Changes in the spectral characteristics of the intrinsic tryptophans of RBD and hydrophobic dye ANS indicate an interaction between the monomeric proteins, but according to the data of circular dichroism spectra, this interaction does not lead to a change in their secondary structure. Data on the kinetics of amyloid fibril formation using several spectral approaches strongly suggest that RBD prevents the amyloid transformation of alpha-synuclein. Moreover, the fibrils obtained in the presence of RBD showed significantly less cytotoxicity on SH-SY5Y neuroblastoma cells.
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42
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Muacevic A, Adler JR, Nigh G, McCullough PA. A Potential Role of the Spike Protein in Neurodegenerative Diseases: A Narrative Review. Cureus 2023; 15:e34872. [PMID: 36788995 PMCID: PMC9922164 DOI: 10.7759/cureus.34872] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2023] [Indexed: 02/13/2023] Open
Abstract
Human prion protein and prion-like protein misfolding are widely recognized as playing a causal role in many neurodegenerative diseases. Based on in vitro and in vivo experimental evidence relating to prion and prion-like disease, we extrapolate from the compelling evidence that the spike glycoprotein of SARS-CoV-2 contains extended amino acid sequences characteristic of a prion-like protein to infer its potential to cause neurodegenerative disease. We propose that vaccine-induced spike protein synthesis can facilitate the accumulation of toxic prion-like fibrils in neurons. We outline various pathways through which these proteins could be expected to distribute throughout the body. We review both cellular pathologies and the expression of disease that could become more frequent in those who have undergone mRNA vaccination. Specifically, we describe the spike protein's contributions, via its prion-like properties, to neuroinflammation and neurodegenerative diseases; to clotting disorders within the vasculature; to further disease risk due to suppressed prion protein regulation in the context of widely prevalent insulin resistance; and to other health complications. We explain why these prion-like characteristics are more relevant to vaccine-related mRNA-induced spike proteins than natural infection with SARS-CoV-2. We note with an optimism an apparent loss of prion-like properties among the current Omicron variants. We acknowledge that the chain of pathological events described throughout this paper is only hypothetical and not yet verified. We also acknowledge that the evidence we usher in, while grounded in the research literature, is currently largely circumstantial, not direct. Finally, we describe the implications of our findings for the general public, and we briefly discuss public health recommendations we feel need urgent consideration. An earlier version of this article was previously posted to the Authorea preprint server on August 16, 2022.
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43
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Garmay Y, Rubel A, Egorov V. Peptide from NSP7 is able to form amyloid-like fibrils: Artifact or challenge to drug design? BIOCHIMICA ET BIOPHYSICA ACTA. PROTEINS AND PROTEOMICS 2023; 1871:140884. [PMID: 36462605 PMCID: PMC9711895 DOI: 10.1016/j.bbapap.2022.140884] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/25/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022]
Abstract
We found potential amyloidogenic fragment in NSP7 SARS-CoV2 protein in silico NSP7 (52–62) fragment is able to form amyloid-like fibrils The possibility of using such a peptide as the basis for an antiviral drug is discussed
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Affiliation(s)
- Yuri Garmay
- Petersburg Nuclear Physics Institute named by B. P. Konstantinov of National Research Center, Kurchatov Institute, 1 mkr. Orlova roshcha, Gatchina 188300, Russia
| | - Aleksandr Rubel
- Saint Petersburg State University, 7/9 Universitetskaya Emb., St Petersburg 199034, Russia
| | - Vladimir Egorov
- Petersburg Nuclear Physics Institute named by B. P. Konstantinov of National Research Center, Kurchatov Institute, 1 mkr. Orlova roshcha, Gatchina 188300, Russia; Smorodintsev Research Institute of Influenza, Russian Ministry of Health, 15/17 Ulitsa Prof. Popova, St. Petersburg 197376, Russia; Institute of Experimental Medicine, 12 Ulitsa Akademika Pavlova, St. Petersburg 197376, Russia.
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44
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Ge WY, Deng X, Shi WP, Lin WJ, Chen LL, Liang H, Wang XT, Zhang TD, Zhao FZ, Guo WH, Yin DC. Amyloid Protein Cross-Seeding Provides a New Perspective on Multiple Diseases In Vivo. Biomacromolecules 2023; 24:1-18. [PMID: 36507729 DOI: 10.1021/acs.biomac.2c01233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Amyloid protein cross-seeding is a peculiar phenomenon of cross-spreading among different diseases. Unlike traditional infectious ones, diseases caused by amyloid protein cross-seeding are spread by misfolded proteins instead of pathogens. As a consequence of the interactions among misfolded heterologous proteins or polypeptides, amyloid protein cross-seeding is considered to be the crucial cause of overlapping pathological transmission between various protein misfolding disorders (PMDs) in multiple tissues and cells. Here, we briefly review the phenomenon of cross-seeding among amyloid proteins. As an interesting example worth mentioning, the potential links between the novel coronavirus pneumonia (COVID-19) and some neurodegenerative diseases might be related to the amyloid protein cross-seeding, thus may cause an undesirable trend in the incidence of PMDs around the world. We then summarize the theoretical models as well as the experimental techniques for studying amyloid protein cross-seeding. Finally, we conclude with an outlook on the challenges and opportunities for basic research in this field. Cross-seeding of amyloid opens up a new perspective in our understanding of the process of amyloidogenesis, which is crucial for the development of new treatments for diseases. It is therefore valuable but still challenging to explore the cross-seeding system of amyloid protein as well as to reveal the structural basis and the intricate processes.
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Affiliation(s)
- Wan-Yi Ge
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Xudong Deng
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Wen-Pu Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Wen-Juan Lin
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Liang-Liang Chen
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Huan Liang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Xue-Ting Wang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Tuo-Di Zhang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China.,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Feng-Zhu Zhao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China.,Non-commissioned Officer School, Army Medical University, Shijiazhuang 050081, China
| | - Wei-Hong Guo
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
| | - Da-Chuan Yin
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, China
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45
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Török M. Amyloids in synthetic applications. Sci Rep 2022; 12:21095. [PMID: 36482055 PMCID: PMC9731959 DOI: 10.1038/s41598-022-25499-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Marianna Török
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA, 02125, USA.
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46
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Muacevic A, Adler JR. Mitogen Activated Protein Kinase (MAPK) Activation, p53, and Autophagy Inhibition Characterize the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Spike Protein Induced Neurotoxicity. Cureus 2022; 14:e32361. [PMID: 36514706 PMCID: PMC9733976 DOI: 10.7759/cureus.32361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2022] [Indexed: 12/13/2022] Open
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein and prions use common pathogenic pathways to induce toxicity in neurons. Infectious prions rapidly activate the p38 mitogen activated protein kinase (MAPK) pathway, and SARS-CoV-2 spike proteins rapidly activate both the p38 MAPK and c-Jun NH2-terminal kinase (JNK) pathways through toll-like receptor signaling, indicating the potential for similar neurotoxicity, causing prion and prion-like disease. In this review, we analyze the roles of autophagy inhibition, molecular mimicry, elevated intracellular p53 levels and reduced Wild-type p53-induced phosphatase 1 (Wip1) and dual-specificity phosphatase (DUSP) expression in neurons in the disease process. The pathways induced by the spike protein via toll-like receptor activation induce both the upregulation of PrPC (the normal isoform of the prion protein, PrP) and the expression of β amyloid. Through the spike-protein-dependent elevation of p53 levels via β amyloid metabolism, increased PrPC expression can lead to PrP misfolding and impaired autophagy, generating prion disease. We conclude that, according to the age of the spike protein-exposed patient and the state of their cellular autophagy activity, excess sustained activity of p53 in neurons may be a catalytic factor in neurodegeneration. An autoimmune reaction via molecular mimicry likely also contributes to neurological symptoms. Overall results suggest that neurodegeneration is in part due to the intensity and duration of spike protein exposure, patient advanced age, cellular autophagy activity, and activation, function and regulation of p53. Finally, the neurologically damaging effects can be cumulatively spike-protein dependent, whether exposure is by natural infection or, more substantially, by repeated mRNA vaccination.
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Mesias VD, Zhu H, Tang X, Dai X, Liu W, Guo Y, Huang J. Moderate Binding between Two SARS-CoV-2 Protein Segments and α-Synuclein Alters Its Toxic Oligomerization Propensity Differently. J Phys Chem Lett 2022; 13:10642-10648. [PMID: 36354180 PMCID: PMC9662073 DOI: 10.1021/acs.jpclett.2c02278] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/31/2022] [Indexed: 06/01/2023]
Abstract
The neurological symptoms of long COVID and viral neuroinvasion have raised concerns about the potential interactions between SARS-CoV-2 protein segments and neuronal proteins, which might confer a risk of post-infection neurodegeneration, but the underlying mechanisms remain unclear. Here, we reported that the receptor-binding domain (RBD) of the spike protein and the nine-residue segment (SK9) of the envelope protein could bind to α-synuclein (αSyn) with Kd values of 503 ± 24 nM and 12.7 ± 1.6 μM, respectively. RBD could inhibit αSyn fibrillization by blocking the non-amyloid-β component region and mediating its antiparallel β-sheet structural conversions. Omicron-RBD (BA.5) was shown to have a slightly stronger affinity for αSyn (Kd = 235 ± 10 nM), which implies similar effects, whereas SK9 may bind to the C-terminus which accelerates the formation of parallel β-sheet-containing oligomers and abruptly increases the rate of membrane disruption by 213%. Our results provide plausible molecular insights into the impact of SARS-CoV-2 post-infection and the oligomerization propensity of αSyn that is associated with Parkinson's disease.
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Affiliation(s)
- Vince
St. Dollente Mesias
- Department
of Chemistry, The Hong Kong University of
Science and Technology, Clear Water Bay, Hong Kong 999077, China
| | - Hongni Zhu
- Department
of Chemistry, The Hong Kong University of
Science and Technology, Clear Water Bay, Hong Kong 999077, China
| | - Xiao Tang
- Division
of Life Science, The Hong Kong University
of Science and Technology, Clear Water Bay, Hong Kong 999077, China
| | - Xin Dai
- Department
of Chemistry, The Hong Kong University of
Science and Technology, Clear Water Bay, Hong Kong 999077, China
| | - Wei Liu
- Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, China
| | - Yusong Guo
- Division
of Life Science, The Hong Kong University
of Science and Technology, Clear Water Bay, Hong Kong 999077, China
| | - Jinqing Huang
- Department
of Chemistry, The Hong Kong University of
Science and Technology, Clear Water Bay, Hong Kong 999077, China
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Aksenova AY, Likhachev IV, Grishin SY, Galzitskaya OV. The Increased Amyloidogenicity of Spike RBD and pH-Dependent Binding to ACE2 May Contribute to the Transmissibility and Pathogenic Properties of SARS-CoV-2 Omicron as Suggested by In Silico Study. Int J Mol Sci 2022; 23:13502. [PMID: 36362302 PMCID: PMC9655063 DOI: 10.3390/ijms232113502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/19/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
SARS-CoV-2 is a rapidly evolving pathogen that has caused a global pandemic characterized by several consecutive waves. Based on epidemiological and NGS data, many different variants of SARS-CoV-2 were described and characterized since the original variant emerged in Wuhan in 2019. Notably, SARS-CoV-2 variants differ in transmissibility and pathogenicity in the human population, although the molecular basis for this difference is still debatable. A significant role is attributed to amino acid changes in the binding surface of the Spike protein to the ACE2 receptor, which may facilitate virus entry into the cell or contribute to immune evasion. We modeled in silico the interaction between Spike RBDs of Wuhan-Hu-1, Delta, and Omicron BA.1 variants and ACE2 at different pHs (pH 5 and pH 7) and showed that the strength of this interaction was higher for the Omicron BA.1 RBD compared to Wuhan-Hu-1 or Delta RBDs and that the effect was more profound at pH 5. This finding is strikingly related to the increased ability of Omicron variants to spread in the population. We also noted that during its spread in the population, SARS-CoV-2 evolved to a more charged, basic composition. We hypothesize that the more basic surface of the Omicron variant may facilitate its spread in the upper respiratory tract but not in the lower respiratory tract, where pH estimates are different. We calculated the amyloidogenic properties of Spike RBDs in different SARS-CoV-2 variants and found eight amyloidogenic regions in the Spike RBDs for each of the variants predicted by the FoldAmyloid program. Although all eight regions were almost identical in the Wuhan to Gamma variants, two of them were significantly longer in both Omicron variants, making the Omicron RBD more amyloidogenic. We discuss how the increased predicted amyloidogenicity of the Omicron variants RBDs may be important for protein stability, influence its interaction with ACE2 and contribute to immune evasion.
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Affiliation(s)
- Anna Y. Aksenova
- Laboratory of Amyloid Biology, St. Petersburg State University, 199034 St. Petersburg, Russia
| | - Ilya V. Likhachev
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Institute of Mathematical Problems of Biology RAS, The Branch of Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Sergei Y. Grishin
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, 625003 Tyumen, Russia
| | - Oxana V. Galzitskaya
- Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
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49
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Kruger A, Vlok M, Turner S, Venter C, Laubscher GJ, Kell DB, Pretorius E. Proteomics of fibrin amyloid microclots in long COVID/post-acute sequelae of COVID-19 (PASC) shows many entrapped pro-inflammatory molecules that may also contribute to a failed fibrinolytic system. Cardiovasc Diabetol 2022; 21:190. [PMID: 36131342 PMCID: PMC9491257 DOI: 10.1186/s12933-022-01623-4] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/07/2022] [Indexed: 02/07/2023] Open
Abstract
Background Post-acute sequelae of COVID-19 (PASC), also now known as long COVID, has become a major global health and economic burden. Previously, we provided evidence that there is a significant insoluble fibrin amyloid microclot load in the circulation of individuals with long COVID, and that these microclots entrap a substantial number of inflammatory molecules, including those that might prevent clot breakdown. Scientifically, the most challenging aspect of this debilitating condition is that traditional pathology tests such as a serum CRP (C-reactive protein) may not show any significant abnormal inflammatory markers, albeit these tests measure only the soluble inflammatory molecules. Elevated, or abnormal soluble biomarkers such as IL-6, D-Dimer or fibrinogen indicate an increased risk for thrombosis or a host immune response in COVID-19. The absence of biomarkers in standard pathology tests, result in a significant amount of confusion for patients and clinicians, as patients are extremely sick or even bed-ridden but with no regular identifiable reason for their disease. Biomarkers that are currently available cannot detect the molecules present in the microclots we identified and are therefore unable to confirm their presence or the mechanisms that drive their formation. Methods Here we analysed the protein content of double-digested microclots of 99 long COVID patients and 29 healthy controls. The patients suffering from long COVID reported their symptoms through a questionnaire completed by themselves or their attending physician. Results Our long COVID cohort’s symptoms were found to be in line with global findings, where the most prevalent symptoms were constant fatigue (74%,) cognitive impairment (71%) and depression and anxiety (30%). Our most noteworthy findings were a reduced level of plasma Kallikrein compared to our controls, an increased level of platelet factor 4 (PF4) von Willebrand factor (VWF), and a marginally increased level of α-2 antiplasmin (α-2-AP). We also found a significant presence of antibodies entrapped inside these microclots. Conclusion Our results confirm the presence of pro-inflammatory molecules that may also contribute to a failed fibrinolysis phenomenon, which could possibly explain why individuals with long COVID suffer from chronic fatigue, dyspnoea, or cognitive impairment. In addition, significant platelet hyperactivation was noted. Hyperactivation will result in the granular content of platelets being shed into the circulation, including PF4. Overall, our results provide further evidence of both a failed fibrinolytic system in long COVID/PASC and the entrapment of many proteins whose presence might otherwise go unrecorded. These findings might have significant implications for individuals with pre-existing comorbidities, including cardiovascular disease and type 2 diabetes.
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Affiliation(s)
- Arneaux Kruger
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch, 7602, South Africa
| | - Mare Vlok
- Central Analytical Facility, Mass Spectrometry Stellenbosch University, Tygerberg Campus, Room 6054, Clinical Building, Francie Van Zijl Drive, Tygerberg, Cape Town, 7505, South Africa
| | - Simone Turner
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch, 7602, South Africa
| | - Chantelle Venter
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch, 7602, South Africa
| | | | - Douglas B Kell
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch, 7602, South Africa. .,Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, L69 7ZB, UK. .,The Novo Nordisk Foundation Centre for Biosustainability, Technical University of Denmark, Kemitorvet 200, 2800, Kongens Lyngby, Denmark.
| | - Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Private Bag X1 Matieland, Stellenbosch, 7602, South Africa. .,Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, L69 7ZB, UK.
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50
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Petrlova J, Samsudin F, Bond PJ, Schmidtchen A. SARS-CoV-2 spike protein aggregation is triggered by bacterial lipopolysaccharide. FEBS Lett 2022; 596:2566-2575. [PMID: 36050806 PMCID: PMC9538650 DOI: 10.1002/1873-3468.14490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/12/2022] [Accepted: 08/19/2022] [Indexed: 11/09/2022]
Abstract
SARS-CoV-2 spike (S) protein is crucial for virus invasion in COVID-19. Here, we showed that lipopolysaccharide (LPS) can trigger S protein aggregation at high doses of LPS and S protein. We demonstrated the formation of S protein aggregates by microscopy analyses, aggregation and gel shift assays. LPS at high levels boosts the formation of S protein aggregates as detected by amytracker and thioflavin T dyes that specifically bind to aggregating proteins. We validated the role of LPS by blocking the formation of aggregates by the endotoxin-scavenging thrombin-derived peptide TCP-25. Aggregation-prone sequences in S protein are predicted to be nearby LPS binding sites, while molecular simulations showed stable formation of S protein-LPS higher-order oligomers. Collectively, our results provide evidence of LPS-induced S protein aggregation.
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Affiliation(s)
- Jitka Petrlova
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, SE-22184, Lund, Sweden
| | - Firdaus Samsudin
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 138671, Singapore
| | - Peter J Bond
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 138671, Singapore.,Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, 117543
| | - Artur Schmidtchen
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, SE-22184, Lund, Sweden.,Copenhagen Wound Healing Center, Bispebjerg Hospital, Department of Biomedical Sciences, University of Copenhagen, DK-2400, Copenhagen, Denmark.,Dermatology, Skåne University Hospital, SE-22185, Lund, Sweden
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