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Vavougios GD, Mavridis T, Doskas T, Papaggeli O, Foka P, Hadjigeorgiou G. SARS-CoV-2-Induced Type I Interferon Signaling Dysregulation in Olfactory Networks Implications for Alzheimer's Disease. Curr Issues Mol Biol 2024; 46:4565-4579. [PMID: 38785545 PMCID: PMC11119810 DOI: 10.3390/cimb46050277] [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: 01/10/2024] [Revised: 04/15/2024] [Accepted: 04/29/2024] [Indexed: 05/25/2024] Open
Abstract
Type I interferon signaling (IFN-I) perturbations are major drivers of COVID-19. Dysregulated IFN-I in the brain, however, has been linked to both reduced cognitive resilience and neurodegenerative diseases such as Alzheimer's. Previous works from our group have proposed a model where peripheral induction of IFN-I may be relayed to the CNS, even in the absence of fulminant infection. The aim of our study was to identify significantly enriched IFN-I signatures and genes along the transolfactory route, utilizing published datasets of the nasal mucosa and olfactory bulb amygdala transcriptomes of COVID-19 patients. We furthermore sought to identify these IFN-I signature gene networks associated with Alzheimer's disease pathology and risk. Gene expression data involving the nasal epithelium, olfactory bulb, and amygdala of COVID-19 patients and transcriptomic data from Alzheimer's disease patients were scrutinized for enriched Type I interferon pathways. Gene set enrichment analyses and gene-Venn approaches were used to determine genes in IFN-I enriched signatures. The Agora web resource was used to identify genes in IFN-I signatures associated with Alzheimer's disease risk based on its aggregated multi-omic data. For all analyses, false discovery rates (FDR) <0.05 were considered statistically significant. Pathways associated with type I interferon signaling were found in all samples tested. Each type I interferon signature was enriched by IFITM and OAS family genes. A 14-gene signature was associated with COVID-19 CNS and the response to Alzheimer's disease pathology, whereas nine genes were associated with increased risk for Alzheimer's disease based on Agora. Our study provides further support to a type I interferon signaling dysregulation along the extended olfactory network as reconstructed herein, ranging from the nasal epithelium and extending to the amygdala. We furthermore identify the 14 genes implicated in this dysregulated pathway with Alzheimer's disease pathology, among which HLA-C, HLA-B, HLA-A, PSMB8, IFITM3, HLA-E, IFITM1, OAS2, and MX1 as genes with associated conferring increased risk for the latter. Further research into its druggability by IFNb therapeutics may be warranted.
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Affiliation(s)
- George D. Vavougios
- Department of Neurology, Medical School, University of Cyprus, Nicosia 1678, Cyprus
| | - Theodoros Mavridis
- Department of Neurology, Tallaght University Hospital (TUH)/The Adelaide and Meath Hospital, Dublin, Incorporating the National Children’s Hospital (AMNCH), D24 NR0A Dublin, Ireland;
| | | | - Olga Papaggeli
- Molecular Virology Laboratory, Hellenic Pasteur Institute, 115 21 Athens, Greece; (O.P.); (P.F.)
| | - Pelagia Foka
- Molecular Virology Laboratory, Hellenic Pasteur Institute, 115 21 Athens, Greece; (O.P.); (P.F.)
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Plachokova AS, Gjaltema J, Hagens ERC, Hashemi Z, Knüppe TBA, Kootstra TJM, Visser A, Bloem BR. Periodontitis: A Plausible Modifiable Risk Factor for Neurodegenerative Diseases? A Comprehensive Review. Int J Mol Sci 2024; 25:4504. [PMID: 38674088 PMCID: PMC11050498 DOI: 10.3390/ijms25084504] [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] [Revised: 04/15/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
The aim of this comprehensive review is to summarize recent literature on associations between periodontitis and neurodegenerative diseases, explore the bidirectionality and provide insights into the plausible pathogenesis. For this purpose, systematic reviews and meta-analyses from PubMed, Medline and EMBASE were considered. Out of 33 retrieved papers, 6 articles complying with the inclusion criteria were selected and discussed. Additional relevant papers for bidirectionality and pathogenesis were included. Results show an association between periodontitis and Alzheimer's disease, with odds ratios of 3 to 5. A bidirectional relationship is suspected. For Parkinson's disease (PD), current evidence for an association appears to be weak, although poor oral health and PD seem to be correlated. A huge knowledge gap was identified. The plausible mechanistic link for the association between periodontitis and neurodegenerative diseases is the interplay between periodontal inflammation and neuroinflammation. Three pathways are hypothesized in the literature, i.e., humoral, neuronal and cellular, with a clear role of periodontal pathogens, such as Porphyromonas gingivalis. Age, gender, race, smoking, alcohol intake, nutrition, physical activity, socioeconomic status, stress, medical comorbidities and genetics were identified as common risk factors for periodontitis and neurodegenerative diseases. Future research with main emphasis on the collaboration between neurologists and dentists is encouraged.
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Affiliation(s)
- Adelina S. Plachokova
- Department of Dentistry, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (J.G.); (E.R.C.H.); (Z.H.); (T.B.A.K.); (T.J.M.K.)
| | - Jolijn Gjaltema
- Department of Dentistry, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (J.G.); (E.R.C.H.); (Z.H.); (T.B.A.K.); (T.J.M.K.)
| | - Eliza R. C. Hagens
- Department of Dentistry, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (J.G.); (E.R.C.H.); (Z.H.); (T.B.A.K.); (T.J.M.K.)
| | - Zahra Hashemi
- Department of Dentistry, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (J.G.); (E.R.C.H.); (Z.H.); (T.B.A.K.); (T.J.M.K.)
| | - Tim B. A. Knüppe
- Department of Dentistry, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (J.G.); (E.R.C.H.); (Z.H.); (T.B.A.K.); (T.J.M.K.)
| | - Thomas J. M. Kootstra
- Department of Dentistry, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (J.G.); (E.R.C.H.); (Z.H.); (T.B.A.K.); (T.J.M.K.)
| | - Anita Visser
- Department of Dentistry, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands; (J.G.); (E.R.C.H.); (Z.H.); (T.B.A.K.); (T.J.M.K.)
- Department of Gerodontology, Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands
| | - Bastiaan R. Bloem
- Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behavior, Department of Neurology, Centre of Expertise for Parkinson and Movement Disorders, 6525 GA Nijmegen, The Netherlands;
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Vavougios GD, Tseriotis VS, Liampas A, Mavridis T, de Erausquin GA, Hadjigeorgiou G. Type I interferon signaling, cognition and neurodegeneration following COVID-19: update on a mechanistic pathogenetic model with implications for Alzheimer's disease. Front Hum Neurosci 2024; 18:1352118. [PMID: 38562226 PMCID: PMC10982434 DOI: 10.3389/fnhum.2024.1352118] [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: 12/07/2023] [Accepted: 03/04/2024] [Indexed: 04/04/2024] Open
Abstract
COVID-19's effects on the human brain reveal a multifactorial impact on cognition and the potential to inflict lasting neuronal damage. Type I interferon signaling, a pathway that represents our defense against pathogens, is primarily affected by COVID-19. Type I interferon signaling, however, is known to mediate cognitive dysfunction upon its dysregulation following synaptopathy, microgliosis and neuronal damage. In previous studies, we proposed a model of outside-in dysregulation of tonic IFN-I signaling in the brain following a COVID-19. This disruption would be mediated by the crosstalk between central and peripheral immunity, and could potentially establish feed-forward IFN-I dysregulation leading to neuroinflammation and potentially, neurodegeneration. We proposed that for the CNS, the second-order mediators would be intrinsic disease-associated molecular patterns (DAMPs) such as proteopathic seeds, without the requirement of neuroinvasion to sustain inflammation. Selective vulnerability of neurogenesis sites to IFN-I dysregulation would then lead to clinical manifestations such as anosmia and cognitive impairment. Since the inception of our model at the beginning of the pandemic, a growing body of studies has provided further evidence for the effects of SARS-CoV-2 infection on the human CNS and cognition. Several preclinical and clinical studies have displayed IFN-I dysregulation and tauopathy in gene expression and neuropathological data in new cases, correspondingly. Furthermore, neurodegeneration identified with a predilection for the extended olfactory network furthermore supports the neuroanatomical concept of our model, and its independence from fulminant neuroinvasion and encephalitis as a cause of CNS damage. In this perspective, we summarize the data on IFN-I as a plausible mechanism of cognitive impairment in this setting, and its potential contribution to Alzheimer's disease and its interplay with COVID-19.
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Affiliation(s)
- George D. Vavougios
- Department of Neurology, Medical School, University of Cyprus, Lefkosia, Cyprus
| | | | - Andreas Liampas
- Department of Neurology, Medical School, University of Cyprus, Lefkosia, Cyprus
| | - Theodore Mavridis
- Tallaght University Hospital (TUH)/The Adelaide and Meath Hospital Dublin, Incorporating the National Children's Hospital (AMNCH), Dublin, Ireland
| | - Gabriel A. de Erausquin
- Laboratory of Brain Development, Modulation and Repair, The Glenn Biggs Institute of Alzheimer's and Neurodegenerative Disorders, Joe R. and Teresa Lozano Long School of Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
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Shahbaz MA, Kuivanen S, Lampinen R, Mussalo L, Hron T, Závodná T, Ojha R, Krejčík Z, Saveleva L, Tahir NA, Kalapudas J, Koivisto AM, Penttilä E, Löppönen H, Singh P, Topinka J, Vapalahti O, Chew S, Balistreri G, Kanninen KM. Human-derived air-liquid interface cultures decipher Alzheimer's disease-SARS-CoV-2 crosstalk in the olfactory mucosa. J Neuroinflammation 2023; 20:299. [PMID: 38098019 PMCID: PMC10722731 DOI: 10.1186/s12974-023-02979-4] [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: 07/11/2023] [Accepted: 11/30/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND The neurological effects of the coronavirus disease of 2019 (COVID-19) raise concerns about potential long-term consequences, such as an increased risk of Alzheimer's disease (AD). Neuroinflammation and other AD-associated pathologies are also suggested to increase the risk of serious SARS-CoV-2 infection. Anosmia is a common neurological symptom reported in COVID-19 and in early AD. The olfactory mucosa (OM) is important for the perception of smell and a proposed site of viral entry to the brain. However, little is known about SARS-CoV-2 infection at the OM of individuals with AD. METHODS To address this gap, we established a 3D in vitro model of the OM from primary cells derived from cognitively healthy and AD individuals. We cultured the cells at the air-liquid interface (ALI) to study SARS-CoV-2 infection under controlled experimental conditions. Primary OM cells in ALI expressed angiotensin-converting enzyme 2 (ACE-2), neuropilin-1 (NRP-1), and several other known SARS-CoV-2 receptor and were highly vulnerable to infection. Infection was determined by secreted viral RNA content and confirmed with SARS-CoV-2 nucleocapsid protein (NP) in the infected cells by immunocytochemistry. Differential responses of healthy and AD individuals-derived OM cells to SARS-CoV-2 were determined by RNA sequencing. RESULTS Results indicate that cells derived from cognitively healthy donors and individuals with AD do not differ in susceptibility to infection with the wild-type SARS-CoV-2 virus. However, transcriptomic signatures in cells from individuals with AD are highly distinct. Specifically, the cells from AD patients that were infected with the virus showed increased levels of oxidative stress, desensitized inflammation and immune responses, and alterations to genes associated with olfaction. These results imply that individuals with AD may be at a greater risk of experiencing severe outcomes from the infection, potentially driven by pre-existing neuroinflammation. CONCLUSIONS The study sheds light on the interplay between AD pathology and SARS-CoV-2 infection. Altered transcriptomic signatures in AD cells may contribute to unique symptoms and a more severe disease course, with a notable involvement of neuroinflammation. Furthermore, the research emphasizes the need for targeted interventions to enhance outcomes for AD patients with viral infection. The study is crucial to better comprehend the relationship between AD, COVID-19, and anosmia. It highlights the importance of ongoing research to develop more effective treatments for those at high risk of severe SARS-CoV-2 infection.
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Affiliation(s)
- Muhammad Ali Shahbaz
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70210, Kuopio, Finland
| | - Suvi Kuivanen
- Department of Virology, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Institute of Virology, 10117, Berlin, Germany
| | - Riikka Lampinen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70210, Kuopio, Finland
| | - Laura Mussalo
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70210, Kuopio, Finland
| | - Tomáš Hron
- Institute of Molecular Genetics, Czech Academy of Sciences, 142 20, Prague, Czech Republic
| | - Táňa Závodná
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine, Czech Academy of Sciences, 142 20, Prague, Czech Republic
| | - Ravi Ojha
- Department of Virology, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
| | - Zdeněk Krejčík
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine, Czech Academy of Sciences, 142 20, Prague, Czech Republic
| | - Liudmila Saveleva
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70210, Kuopio, Finland
| | - Numan Ahmad Tahir
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70210, Kuopio, Finland
| | - Juho Kalapudas
- Department of Neurology, Neuro Centre, Kuopio University Hospital, 70210, Kuopio, Finland
| | - Anne M Koivisto
- Department of Neurology, Neuro Centre, Kuopio University Hospital, 70210, Kuopio, Finland
- Brain Research Unit, Department of Neurology, School of Medicine, University of Eastern Finland, 70210, Kuopio, Finland
- Department of Neurology and Geriatrics, Helsinki University Hospital and Neurosciences, Faculty of Medicine, University of Helsinki, 00014, Helsinki, Finland
| | - Elina Penttilä
- Department of Otorhinolaryngology, University of Eastern Finland and Kuopio University Hospital, 70210, Kuopio, Finland
| | - Heikki Löppönen
- Department of Otorhinolaryngology, University of Eastern Finland and Kuopio University Hospital, 70210, Kuopio, Finland
| | | | - Jan Topinka
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine, Czech Academy of Sciences, 142 20, Prague, Czech Republic
| | - Olli Vapalahti
- Department of Virology, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
| | - Sweelin Chew
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70210, Kuopio, Finland
| | - Giuseppe Balistreri
- Department of Virology, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
- The Queensland Brain Institute, University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Katja M Kanninen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70210, Kuopio, Finland.
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Fulop T, Ramassamy C, Lévesque S, Frost EH, Laurent B, Lacombe G, Khalil A, Larbi A, Hirokawa K, Desroches M, Rodrigues S, Bourgade K, Cohen AA, Witkowski JM. Viruses - a major cause of amyloid deposition in the brain. Expert Rev Neurother 2023; 23:775-790. [PMID: 37551672 DOI: 10.1080/14737175.2023.2244162] [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: 04/01/2023] [Accepted: 07/31/2023] [Indexed: 08/09/2023]
Abstract
INTRODUCTION Clinically, Alzheimer's disease (AD) is a syndrome with a spectrum of various cognitive disorders. There is a complete dissociation between the pathology and the clinical presentation. Therefore, we need a disruptive new approach to be able to prevent and treat AD. AREAS COVERED In this review, the authors extensively discuss the evidence why the amyloid beta is not the pathological cause of AD which makes therefore the amyloid hypothesis not sustainable anymore. They review the experimental evidence underlying the role of microbes, especially that of viruses, as a trigger/cause for the production of amyloid beta leading to the establishment of a chronic neuroinflammation as the mediator manifesting decades later by AD as a clinical spectrum. In this context, the emergence and consequences of the infection/antimicrobial protection hypothesis are described. The epidemiological and clinical data supporting this hypothesis are also analyzed. EXPERT OPINION For decades, we have known that viruses are involved in the pathogenesis of AD. This discovery was ignored and discarded for a long time. Now we should accept this fact, which is not a hypothesis anymore, and stimulate the research community to come up with new ideas, new treatments, and new concepts.
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Affiliation(s)
- Tamas Fulop
- Research Center on Aging, Centre Intégré Universitaire de Santé Et Services Sociaux de l'Estrie-Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
- Department of Medicine, Division of Geriatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | | | - Simon Lévesque
- CIUSSS de l'Estrie - CHUS, Sherbrooke, QC, Canada
- Département de Microbiologie Et Infectiologie, Faculté de Médecine Et des Sciences de la santé, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Eric H Frost
- Département de Microbiologie Et Infectiologie, Faculté de Médecine Et des Sciences de la santé, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Benoit Laurent
- Research Center on Aging, Centre Intégré Universitaire de Santé Et Services Sociaux de l'Estrie-Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
- Department of Biochemistry and Functional Genomics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Guy Lacombe
- Research Center on Aging, Centre Intégré Universitaire de Santé Et Services Sociaux de l'Estrie-Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
- Department of Medicine, Division of Geriatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Abedelouahed Khalil
- Research Center on Aging, Centre Intégré Universitaire de Santé Et Services Sociaux de l'Estrie-Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
- Department of Medicine, Division of Geriatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Anis Larbi
- Department of Medicine, Division of Geriatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Katsuiku Hirokawa
- Department of Pathology, Institute of Health and Life Science, Tokyo Medical Dental University, Tokyo and Nito-Memory Nakanosogo Hospital, Tokyo, Japan
| | - Mathieu Desroches
- MathNeuro Team, Inria Sophia Antipolis Méditerranée, Biot, France
- Université Côte d'Azur, Nice, France
| | - Serafim Rodrigues
- Ikerbasque, BCAM, the Basque Foundation for Science and BCAM - The Basque Center for Applied Mathematics, Bilbao, Spain
| | - Karine Bourgade
- Research Center on Aging, Centre Intégré Universitaire de Santé Et Services Sociaux de l'Estrie-Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
| | - Alan A Cohen
- Department of Environmental Health Sciences, Butler Columbia Aging Center, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Jacek M Witkowski
- Department of Pathophysiology, Medical University of Gdansk, Gdansk, Poland
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Zhao X, Dan C, Gong XY, Li YL, Qu ZL, Sun HY, An LL, Guo WH, Mei J, Gui JF, Zhang YB. Yellow catfish RIO kinases (RIOKs) negatively regulate fish interferon-mediated antiviral response. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 142:104656. [PMID: 36746265 DOI: 10.1016/j.dci.2023.104656] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
In mammals, right open reading frame kinases (RIOKs) are initially reported to participate in cancer cell proliferation, apoptosis, migration and invasion, and recently they have been related to host immune response. Little is known about the homologs of RIOKs in fish. In the current study, we cloned three homologous genes of RIOK family in yellow catfish (Pelteobagrus fulvidraco), termed Pfriok1, Pfriok2 and Pfriok3. Pfriok1, Pfriok2 and Pfriok3 were constitutively expressed at relatively high levels in yellow catfish tissues, and their mRNA levels were not changed under viral infection. Individual overexpression of PfRIOK1, PfRIOK2 and PfRIOK3 attenuated fish interferon (IFN) response, thereby promoting viral replication in fish cells. Mechanistically, yellow catfish RIOK proteins downregulated fish IFN response through attenuating TBK1 protein levels in cytoplasm. Our findings suggest that yellow catfish RIOK1, RIOK2 and RIOK3 are involved in downregulating fish IFN antiviral response.
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Affiliation(s)
- Xiang Zhao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Cheng Dan
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Xiu-Ying Gong
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Yi-Lin Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Zi-Ling Qu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Hao-Yu Sun
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Li-Li An
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Wen-Hao Guo
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Jie Mei
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jian-Fang Gui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China; The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Yi-Bing Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 10049, China; The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, 430072, China.
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7
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Vavougios GD, de Erausquin GA, Snyder HM. Type I interferon signaling in SARS-CoV-2 associated neurocognitive disorder (SAND): Mapping host-virus interactions to an etiopathogenesis. Front Neurol 2022; 13:1063298. [PMID: 36570454 PMCID: PMC9771386 DOI: 10.3389/fneur.2022.1063298] [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: 10/06/2022] [Accepted: 11/09/2022] [Indexed: 12/12/2022] Open
Abstract
Epidemiological, clinical, and radiological studies have provided insights into the phenomenology and biological basis of cognitive impairment in COVID-19 survivors. Furthermore, its association with biomarkers associated with neuroinflammation and neurodegeneration supports the notion that it is a distinct aspect of LongCOVID syndrome with specific underlying biology. Accounting for the latter, translational studies on SARS-CoV-2's interactions with its hosts have provided evidence on type I interferon dysregulation, which is seen in neuroinflammatory and neurodegenerative diseases. To date, studies attempting to describe this overlap have only described common mechanisms. In this manuscript, we attempt to propose a mechanistic model based on the host-virus interaction hypothesis. We discuss the molecular basis for a SARS-CoV-2-associated neurocognitive disorder (SAND) focusing on specific genes and pathways with potential mechanistic implications, several of which have been predicted by Vavougios and their research group. Furthermore, our hypothesis links translational evidence on interferon-responsive gene perturbations introduced by SARS-CoV-2 and known dysregulated pathways in dementia. Discussion emphasizes the crosstalk between central and peripheral immunity via danger-associated molecular patterns in inducing SAND's emergence in the absence of neuroinfection. Finally, we outline approaches to identifying targets that are both testable and druggable, and could serve in the design of future clinical and translational studies.
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Affiliation(s)
- George D. Vavougios
- Department of Neurology, University of Cyprus, Lefkosia, Cyprus,Department of Respiratory Medicine, University of Thessaly, Larisa, Greece,*Correspondence: George D. Vavougios ;
| | - Gabriel A. de Erausquin
- The Glenn Biggs Institute for Alzheimer's and Neurodegenerative Diseases, UTHSA, San Antonio, TX, United States
| | - Heather M. Snyder
- Division of Medical and Scientific Relations, Alzheimer's Association, Chicago, IL, United States
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