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Darif D, Hammi I, Kihel A, El Idrissi Saik I, Guessous F, Akarid K. The pro-inflammatory cytokines in COVID-19 pathogenesis: What goes wrong? Microb Pathog 2021; 153:104799. [PMID: 33609650 PMCID: PMC7889464 DOI: 10.1016/j.micpath.2021.104799] [Citation(s) in RCA: 168] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 02/05/2021] [Accepted: 02/08/2021] [Indexed: 02/06/2023]
Abstract
The outbreak of coronavirus disease 2019 (COVID-19), caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection, has emerged in China in December 2019 and rapidly spread to more than 196 countries worldwide. The physiopathology of human SARS-CoV-2 has not been completely understood, but its pathogenesis has been linked to a disproportionate response of the immune system. Just as described for SARS and MERS, an uncontrolled systemic inflammatory response, known as cytokine release syndrome (CRS) was observed in severe COVID-19 patients. It results from the release by immune and non-immune effector cells of substantial amounts of pro-inflammatory cytokines and appears to contribute to SARS-CoV-2 pulmonary inflammation and extensive lung damage. In addition, hyper-coagulation and thrombosis resulted from the important release of pro-inflammatory cytokines contribute to the lethality of subjects severely infected with SARS-CoV-2. It is therefore essential to have a deep understanding of the various cytokines involved in this exacerbated immune response, and that could be targeted by potential immunological treatments. The aim of this review was to gather the current knowledge about the role of pro-inflammatory cytokines, namely IL-1β, IL-6, IL-8, IL-17 and TNFα in SARS-CoV-2 CRS, the probable causes and clinical outcomes of this phenomenon in severe cases of COVID-19.
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Affiliation(s)
- Dounia Darif
- Molecular Genetics and Immunophysiopathology Research Team, Health and Environment Laboratory, Aïn Chock Faculty of Sciences, Hassan II University of Casablanca (UH2C), Morocco
| | - Ikram Hammi
- Molecular Genetics and Immunophysiopathology Research Team, Health and Environment Laboratory, Aïn Chock Faculty of Sciences, Hassan II University of Casablanca (UH2C), Morocco
| | - Ayyoub Kihel
- Molecular Genetics and Immunophysiopathology Research Team, Health and Environment Laboratory, Aïn Chock Faculty of Sciences, Hassan II University of Casablanca (UH2C), Morocco
| | - Imane El Idrissi Saik
- Immunopathology of Infectious and Systemic Diseases, Laboratory of Cellular and Molecular Pathology, Faculty of Medicine and Pharmacy, UH2C, Morocco
| | - Fadila Guessous
- Department of Biological Sciences, Faculty of Medicine, Mohammed VI University of Health Sciences, Casablanca, Morocco; Department of Microbiology, Immunology and Cancer Biology, School of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Khadija Akarid
- Molecular Genetics and Immunophysiopathology Research Team, Health and Environment Laboratory, Aïn Chock Faculty of Sciences, Hassan II University of Casablanca (UH2C), Morocco.
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202
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Reiken S, Dridi H, Sittenfeld L, Liu X, Marks AR. Alzheimer's-like remodeling of neuronal ryanodine receptor in COVID-19. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2021. [PMID: 33619477 DOI: 10.1101/2021.02.18.431811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
COVID-19, caused by SARS-CoV-2 involves multiple organs including cardiovascular, pulmonary and central nervous system. Understanding how SARS-CoV-2 infection afflicts diverse organ systems remains challenging 1,2 . Particularly vexing has been the problem posed by persistent organ dysfunction known as "long COVID," which includes cognitive impairment 3 . Here we provide evidence linking SARS-CoV-2 infection to activation of TGF-ß signaling and oxidative overload. One consequence is oxidation of the ryanodine receptor/calcium (Ca 2+ ) release channels (RyR) on the endo/sarcoplasmic (ER/SR) reticuli in heart, lung and brains of patients who succumbed to COVID-19. This depletes the channels of the stabilizing subunit calstabin2 causing them to leak Ca 2+ which can promote heart failure 4,5 , pulmonary insufficiency 6 and cognitive and behavioral defects 7-9 . Ex-vivo treatment of heart, lung, and brain tissues from COVID-19 patients using a Rycal drug (ARM210) 10 prevented calstabin2 loss and fixed the channel leak. Of particular interest is that neuropathological pathways activated downstream of leaky RyR2 channels in Alzheimer's Disease (AD) patients were activated in COVID-19 patients. Thus, leaky RyR2 Ca 2+ channels may play a role in COVID-19 pathophysiology and could be a therapeutic target for amelioration of some comorbidities associated with SARS-CoV-2 infection.
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203
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Zarandi PK, Zinatizadeh MR, Zinatizadeh M, Yousefi MH, Rezaei N. SARS-CoV-2: From the pathogenesis to potential anti-viral treatments. Biomed Pharmacother 2021; 137:111352. [PMID: 33550050 PMCID: PMC7969672 DOI: 10.1016/j.biopha.2021.111352] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/26/2021] [Accepted: 01/29/2021] [Indexed: 12/12/2022] Open
Abstract
Introduction The world is witnessing the spread of one of the members of Coronaviruses (CoVs) family, called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the 21st century. Considering the short time spent after its prevalence, limited information is known about the effect of the virus mechanism on different organs of the body; meanwhile the lack of specific treatment and vaccine for this virus has exposed millions of people to a big challenge. Areas covered The review article aims to describe the general and particular characteristics of CoVs, their classification, genome structure, host cell infection, cytokine storm, anti-viral treatments, and inhibition of COVID-19-related ER-mitochondrial stress. In addition, it refers to drugs such as Chloroquine/Hydroxychloroquine, Lopinavir/Ritonavir, darunavir, ribavirin, remdesivir, and favipiravir, which have undergone clinical trials for coronavirus disease 2019 (COVID-19) treatment. This analysis was derived from an extensive scientific literature search including Pubmed, ScienceDirect, and Google Scholar performed. Expert opinion The effectiveness rate and complications of these drugs can reveal new insights into the potential therapeutic goals for the disease. Moreover, lifestyle change can effectively prevent SARS-CoV-2 infection.
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Affiliation(s)
- Peyman Kheirandish Zarandi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran; Cancer Biology Signaling Pathway Interest Group (CBSPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Mohammad Reza Zinatizadeh
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran; Cancer Biology Signaling Pathway Interest Group (CBSPIG), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Maryam Zinatizadeh
- Department of Anesthesiology, Semnan Branch, Islamic Azad University, Shahrood, Iran
| | - Mohammad Hadi Yousefi
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran; Department of Mycobacteriology and Pulmonary Research, Microbiology Research Center (MRC), Pasteur Institute of Iran, Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
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204
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Pagano G, Manfredi C, Pallardó FV, Lyakhovich A, Tiano L, Trifuoggi M. Potential roles of mitochondrial cofactors in the adjuvant mitigation of proinflammatory acute infections, as in the case of sepsis and COVID-19 pneumonia. Inflamm Res 2021; 70:159-170. [PMID: 33346851 PMCID: PMC7750159 DOI: 10.1007/s00011-020-01423-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/29/2020] [Accepted: 11/11/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The mitochondrial cofactors α-lipoic acid (ALA), coenzyme Q10 (CoQ10) and carnitine (CARN) play distinct and complementary roles in mitochondrial functioning, along with strong antioxidant actions. Also termed mitochondrial nutrients (MNs), these cofactors have demonstrated specific protective actions in a number of chronic disorders, as assessed in a well-established body of literature. METHODS Using PubMed, the authors searched for articles containing information on the utilization of MNs in inflammatory disorders as assessed from in vitro and animal studies, and in clinical trials, in terms of exerting anti-inflammatory actions. RESULTS The retrieved literature provided evidence relating acute pathologic conditions, such as sepsis and pneumonia, with a number of redox endpoints of biological and clinical relevance. Among these findings, both ALA and CARN were effective in counteracting inflammation-associated redox biomarkers, while CoQ10 showed decreased levels in proinflammatory conditions. MN-associated antioxidant actions were applied in a number of acute disorders, mostly using one MN. The body of literature assessing the safety and the complementary roles of MNs taken together suggests an adjuvant role of MN combinations in counteracting oxidative stress in sepsis and other acute disorders, including COVID-19-associated pneumonia. CONCLUSIONS The present state of art in the use of individual MNs in acute disorders suggests planning adjuvant therapy trials utilizing MN combinations aimed at counteracting proinflammatory conditions, as in the case of pneumonia and the COVID-19 pandemic.
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Affiliation(s)
- Giovanni Pagano
- Department of Chemical Sciences, Federico II Naples University, Via Cintia, 80126, Naples, Italy.
| | - Carla Manfredi
- Department of Chemical Sciences, Federico II Naples University, Via Cintia, 80126, Naples, Italy
| | - Federico V Pallardó
- Department of Physiology, Faculty of Medicine and Dentistry, University of Valencia-INCLIVA, CIBERER, 46010, Valencia, Spain
| | - Alex Lyakhovich
- Vall d'Hebron Institut de Recerca, 08035, Barcelona, Spain
- Institute of Molecular Biology and Biophysics of the "Federal Research Center of Fundamental and Translational Medicine", 630117, Novosibirsk, Russia
| | - Luca Tiano
- Department of Life and Environmental Sciences, Polytechnical University of Marche, 60100, Ancona, Italy
| | - Marco Trifuoggi
- Department of Chemical Sciences, Federico II Naples University, Via Cintia, 80126, Naples, Italy
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205
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Iessi E, Cittadini C, Anticoli S, Fecchi K, Matarrese P, Ruggieri A. Sex differences in antiviral immunity in SARS-CoV-2 infection: Mitochondria and mitomiR come into view. Acta Physiol (Oxf) 2021; 231:e13571. [PMID: 33090696 PMCID: PMC7645884 DOI: 10.1111/apha.13571] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 10/13/2020] [Accepted: 10/13/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Elisabetta Iessi
- Center for Gender‐Specific Medicine Istituto Superiore di Sanità Rome Italy
| | - Camilla Cittadini
- Center for Gender‐Specific Medicine Istituto Superiore di Sanità Rome Italy
| | - Simona Anticoli
- Center for Gender‐Specific Medicine Istituto Superiore di Sanità Rome Italy
| | - Katia Fecchi
- Center for Gender‐Specific Medicine Istituto Superiore di Sanità Rome Italy
| | - Paola Matarrese
- Center for Gender‐Specific Medicine Istituto Superiore di Sanità Rome Italy
| | - Anna Ruggieri
- Center for Gender‐Specific Medicine Istituto Superiore di Sanità Rome Italy
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206
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Nagoor Meeran M, Javed H, Sharma C, Goyal SN, Kumar S, Jha NK, Ojha S. Can Echinacea be a potential candidate to target immunity, inflammation, and infection - The trinity of coronavirus disease 2019. Heliyon 2021; 7:e05990. [PMID: 33585706 PMCID: PMC7870107 DOI: 10.1016/j.heliyon.2021.e05990] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/18/2020] [Accepted: 01/11/2021] [Indexed: 02/06/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is an ongoing public health emergency. The pathogenesis and complications advanced with infection mainly involve immune-inflammatory cascade. Therefore, the therapeutic strategy relies on immune modulation, reducing infectivity and inflammation. Given the interplay of infection and immune-inflammatory axis, the natural products received attention for preventive and therapeutic usage in COVID-19 due to their potent antiviral and anti-immunomodulatory activities. Recently, Echinacea preparations, particularly E. purpurea, have been suggested to be an important antiviral agent to be useful in COVID-19 by modulating virus entry, internalization and replication. In principle, the immune response and the resultant inflammatory process are important for the elimination of the infection, but may have a significant impact on SARS-CoV-2 pathogenesis and may play a role in the clinical spectrum of COVID-19. Considering the pharmacological effects, therapeutic potential, and molecular mechanisms of Echinacea, we hypothesize that it could be a reasonably possible candidate for targeting infection, immunity, and inflammation in COVID-19 with recent recognition of cannabinoid-2 (CB2) receptors and peroxisome proliferator-activated receptor gamma (PPARγ) mediated mechanisms of bioactive components that make them notable immunomodulatory, anti-inflammatory and antiviral agent. The plausible reason for our hypothesis is that the presence of numerous bioactive agents in different parts of plants that may synergistically exert polypharmacological actions in regulating immune-inflammatory axis in COVID-19. Our proposition is to scientifically contemplate the therapeutic perspective and prospect of Echinacea on infection, immunity, and inflammation with a potential in COVID-19 to limit the severity and progression of the disease. Based on the clinical usage for respiratory infections, and relative safety in humans, further studies for the evidence-based approach to COVID-19 are needed. We do hope that Echinacea could be a candidate agent for immunomodulation in the prevention and treatment of COVID-19.
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Affiliation(s)
- M.F. Nagoor Meeran
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, PO Box - 17666, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Hayate Javed
- Department of Anatomy, College of Medicine and Health Sciences, PO Box - 17666, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Charu Sharma
- Department of Internal Medicine, College of Medicine and Health Sciences, PO Box - 17666, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Sameer N. Goyal
- Shri Vile Parle Kelvani Mandal's Institute of Pharmacy, Dhule 424001, Maharashtra, India
| | - Sanjay Kumar
- Division of Hematology/Nephrology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
- Department of Life Sciences, School of Basic Science and Research, Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh 201310, India
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Knowledge Park III, Greater Noida, Uttar Pradesh 201310, India
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, PO Box - 17666, United Arab Emirates University, Al Ain, United Arab Emirates
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207
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Vignesh R, Swathirajan CR, Tun ZH, Rameshkumar MR, Solomon SS, Balakrishnan P. Could Perturbation of Gut Microbiota Possibly Exacerbate the Severity of COVID-19 via Cytokine Storm? Front Immunol 2021; 11:607734. [PMID: 33569053 PMCID: PMC7868418 DOI: 10.3389/fimmu.2020.607734] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 12/18/2020] [Indexed: 12/16/2022] Open
Affiliation(s)
- Ramachandran Vignesh
- Preclinical Department, Faculty of Medicine, Royal College of Medicine Perak, Universiti Kuala Lumpur, Ipoh, Malaysia
- Infectious Diseases Laboratory, YR Gaitonde Centre for AIDS Research and Education (YRG CARE), Chennai, India
| | | | - Zaw Htet Tun
- Preclinical Department, Faculty of Medicine, Royal College of Medicine Perak, Universiti Kuala Lumpur, Ipoh, Malaysia
| | - Marimuthu Ragavan Rameshkumar
- Laboratory Division, Indian Council of Medical Research-National Institute of Epidemiology (ICMR-NIE), Indian Council of Medical Research, Chennai, India
| | - Sunil Suhas Solomon
- Infectious Diseases Laboratory, YR Gaitonde Centre for AIDS Research and Education (YRG CARE), Chennai, India
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Pachamuthu Balakrishnan
- Infectious Diseases Laboratory, YR Gaitonde Centre for AIDS Research and Education (YRG CARE), Chennai, India
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208
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Richter FC, Alrubayyi A, Teijeira Crespo A, Hulin-Curtis S. Impact of obesity and SARS-CoV-2 infection: implications for host defence - a living review. OXFORD OPEN IMMUNOLOGY 2021; 2:iqab001. [PMID: 34192269 PMCID: PMC7928648 DOI: 10.1093/oxfimm/iqab001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/05/2021] [Accepted: 01/05/2021] [Indexed: 12/12/2022] Open
Abstract
The role of obesity in the pathophysiology of respiratory virus infections has become particularly apparent during the current severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, where obese patients are twice as likely to suffer from severe coronavirus disease 2019 (COVID-19) than healthy weight individuals. Obesity results in disruption of systemic lipid metabolism promoting a state of chronic low-grade inflammation. However, it remains unclear how these underlying metabolic and cellular processes promote severe SARS-CoV-2 infection. Emerging data in SARS-CoV-2 and Influenza A virus (IAV) infections show that viruses can further subvert the host's altered lipid metabolism and exploit obesity-induced alterations in immune cell metabolism and function to promote chronic inflammation and viral propagation. In this review, we outline the systemic metabolic and immune alterations underlying obesity and discuss how these baseline alterations impact the immune response and disease pathophysiology. A better understanding of the immunometabolic landscape of obese patients may aid better therapies and future vaccine design.
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Affiliation(s)
- Felix Clemens Richter
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | | | - Alicia Teijeira Crespo
- Division of Cancer and Genetics, Henry Wellcome Building, Cardiff University, Cardiff, UK
| | | | - Sarah Hulin-Curtis
- Division of Infection and Immunity, Henry Wellcome Building, Cardiff University, Cardiff, UK
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209
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Chang R, Mamun A, Dominic A, Le NT. SARS-CoV-2 Mediated Endothelial Dysfunction: The Potential Role of Chronic Oxidative Stress. Front Physiol 2021; 11:605908. [PMID: 33519510 PMCID: PMC7844210 DOI: 10.3389/fphys.2020.605908] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 12/09/2020] [Indexed: 01/08/2023] Open
Abstract
Endothelial cells have emerged as key players in SARS-CoV-2 infection and COVID-19 inflammatory pathologies. Dysfunctional endothelial cells can promote chronic inflammation and disease processes like thrombosis, atherosclerosis, and lung injury. In endothelial cells, mitochondria regulate these inflammatory pathways via redox signaling, which is primarily achieved through mitochondrial reactive oxygen species (mtROS). Excess mtROS causes oxidative stress that can initiate and exacerbate senescence, a state that promotes inflammation and chronic endothelial dysfunction. Oxidative stress can also activate feedback loops that perpetuate mitochondrial dysfunction, mtROS overproduction, and inflammation. In this review, we provide an overview of phenotypes mediated by mtROS in endothelial cells - such as mitochondrial dysfunction, inflammation, and senescence - as well as how these chronic states may be initiated by SARS-CoV-2 infection of endothelial cells. We also propose that SARS-CoV-2 activates mtROS-mediated feedback loops that cause long-term changes in host redox status and endothelial function, promoting cardiovascular disease and lung injury after recovery from COVID-19. Finally, we discuss the implications of these proposed pathways on long-term vascular health and potential treatments to address these chronic conditions.
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Affiliation(s)
- Ryan Chang
- College of Arts & Sciences, Washington University in St. Louis, St. Louis, MO, United States
| | - Abrar Mamun
- Wiess School of Natural Sciences, Rice University, Houston, TX, United States
| | - Abishai Dominic
- Department of Molecular and Cellular Medicine, College of Medicine, Texas A&M University, College Station, TX, United States
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, United States
| | - Nhat-Tu Le
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, United States
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210
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Ganji R, Reddy PH. Impact of COVID-19 on Mitochondrial-Based Immunity in Aging and Age-Related Diseases. Front Aging Neurosci 2021; 12:614650. [PMID: 33510633 PMCID: PMC7835331 DOI: 10.3389/fnagi.2020.614650] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/16/2020] [Indexed: 12/12/2022] Open
Abstract
The coronavirus disease 2019 (COVID-19) has become a deadly pandemic with surging mortality rates and no cure. COVID-19 is caused by the severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) with a range of clinical symptoms, including cough, fever, chills, headache, shortness of breath, difficulty breathing, muscle pain, and a loss of smell or taste. Aged individuals with compromised immunity are highly susceptible to COVID-19 and the likelihood of mortality increases with age and the presence of comorbidities such as hypertension, diabetes mellitus, cardiovascular disease, or chronic obstructive pulmonary disease. Emerging evidence suggests that COVID-19 highjacks mitochondria of immune cells, replicates within mitochondrial structures, and impairs mitochondrial dynamics leading to cell death. Mitochondria are the powerhouses of the cell and are largely involved in maintaining cell immunity, homeostasis, and cell survival/death. Increasing evidence suggests that mitochondria from COVID-19 infected cells are highly vulnerable, and vulnerability increases with age. The purpose of our article is to summarize the role of various age-related comorbidities such as diabetes, obesity, and neurological diseases in increasing mortality rates amongst the elderly with COVID-19. Our article also highlights the interaction between coronavirus and mitochondrial dynamics in immune cells. We also highlight the current treatments, lifestyles, and safety measures that can help protect against COVID-19. Further research is urgently needed to understand the molecular mechanisms between the mitochondrial virus and disease progression in COVID-19 patients.
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Affiliation(s)
- Riya Ganji
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - P. Hemachandra Reddy
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Departments of Neuroscience and Pharmacology, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Neurology, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Public Health Department of Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, Lubbock, TX, United States
- Department of Speech, Language and Hearing Sciences, School Health Professions, Texas Tech University Health Sciences Center, Lubbock, TX, United States
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211
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Loo J, Spittle DA, Newnham M. COVID-19, immunothrombosis and venous thromboembolism: biological mechanisms. Thorax 2021; 76:412-420. [PMID: 33408195 DOI: 10.1136/thoraxjnl-2020-216243] [Citation(s) in RCA: 173] [Impact Index Per Article: 57.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/30/2020] [Accepted: 11/11/2020] [Indexed: 12/17/2022]
Abstract
Thrombotic events that frequently occur in COVID-19 are predominantly venous thromboemboli (VTE) and are associated with increasing disease severity and worse clinical outcomes. Distinctive microvascular abnormalities in COVID-19 include endothelial inflammation, disruption of intercellular junctions and microthrombi formation. A distinct COVID-19-associated coagulopathy along with increased cytokines and activation of platelets, endothelium and complement occur in COVID-19, which is more frequent with worsening disease severity. This proinflammatory milieu may result in immunothrombosis, a host defence mechanism that can become dysregulated, leading to excess formation of immunologically mediated thrombi which predominantly affect the microvasculature. The haemostatic and immune systems are intricately linked, and multifactorial processes are likely to contribute to VTE and immunothrombosis in COVID-19. This state-of-the-art review will explore the pathobiological mechanisms of immunothrombosis and VTE in COVID-19 focusing on: COVID-19-associated coagulopathy, pathology, endothelial dysfunction and haemostasis, the immune system and thrombosis, genetic associations and additional thrombotic mechanisms. An understanding of the complex interplay between these processes is necessary for developing and assessing how new treatments affect VTE and immunothrombosis in COVID-19.
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Affiliation(s)
- Joan Loo
- College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Daniella A Spittle
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Michael Newnham
- Institute of Applied Health Research, University of Birmingham, Birmingham, UK
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212
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Chow RD, Majety M, Chen S. The aging transcriptome and cellular landscape of the human lung in relation to SARS-CoV-2. Nat Commun 2021; 12:4. [PMID: 33397975 PMCID: PMC7782551 DOI: 10.1038/s41467-020-20323-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 11/24/2020] [Indexed: 01/29/2023] Open
Abstract
Age is a major risk factor for severe coronavirus disease-2019 (COVID-19). Here, we interrogate the transcriptional features and cellular landscape of the aging human lung. By intersecting these age-associated changes with experimental data on SARS-CoV-2, we identify several factors that may contribute to the heightened severity of COVID-19 in older populations. The aging lung is transcriptionally characterized by increased cell adhesion and stress responses, with reduced mitochondria and cellular replication. Deconvolution analysis reveals that the proportions of alveolar type 2 cells, proliferating basal cells, goblet cells, and proliferating natural killer/T cells decrease with age, whereas alveolar fibroblasts, pericytes, airway smooth muscle cells, endothelial cells and IGSF21+ dendritic cells increase with age. Several age-associated genes directly interact with the SARS-CoV-2 proteome. Age-associated genes are also dysregulated by SARS-CoV-2 infection in vitro and in patients with severe COVID-19. These analyses illuminate avenues for further studies on the relationship between age and COVID-19.
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Affiliation(s)
- Ryan D Chow
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA
- Systems Biology Institute, Yale University, West Haven, CT, USA
- Center for Cancer Systems Biology, Yale University, West Haven, CT, USA
- M.D.-Ph.D. Program, Yale University, New Haven, CT, USA
| | - Medha Majety
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA
- Systems Biology Institute, Yale University, West Haven, CT, USA
- Center for Cancer Systems Biology, Yale University, West Haven, CT, USA
- The College, Yale University, New Haven, CT, 06520, USA
| | - Sidi Chen
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA.
- Systems Biology Institute, Yale University, West Haven, CT, USA.
- Center for Cancer Systems Biology, Yale University, West Haven, CT, USA.
- M.D.-Ph.D. Program, Yale University, New Haven, CT, USA.
- Immunobiology Program, Yale University, New Haven, CT, USA.
- Molecular Cell Biology, Genetics, and Development Program, Yale University, New Haven, CT, USA.
- Combined Program in the Biological and Biomedical Sciences, Yale University, New Haven, CT, USA.
- Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT, USA.
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA.
- Yale Stem Cell Center, Yale University School of Medicine, New Haven, CT, USA.
- Yale Liver Center, Yale University School of Medicine, New Haven, CT, USA.
- Yale Center for Biomedical Data Science, Yale University School of Medicine, New Haven, CT, USA.
- Yale Center for RNA Science and Medicine, Yale University School of Medicine, New Haven, CT, USA.
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213
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Sadiq FA. Is it time for microbiome-based therapies in viral infections? Virus Res 2021; 291:198203. [PMID: 33132161 PMCID: PMC7580679 DOI: 10.1016/j.virusres.2020.198203] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/16/2020] [Accepted: 10/17/2020] [Indexed: 01/07/2023]
Abstract
Infectious diseases related to viruses, as well as bacterial pathogens, abound in all parts of the world, burdening health and economy. Thus, there is a dire need to find new prevention and treatment strategies to improve clinical practices related to viral infections. Human gut contains trillions of bacteria which have regulatory roles in immune development, homeostasis, and body metabolism. Today, it is difficult to find any prominent viral infection that hasn't had any link with the human gut microbiota. In this opinion-based review article, I argued the significance of manipulating human gut microbiota as novel therapeutics through probiotics or FMT in alleviating complexities related to viral infections, and pinpointed bottlenecks involved in this research.
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Affiliation(s)
- Faizan Ahmed Sadiq
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China,School of Food Science and Technology, Jiangnan University, Wuxi, 1800 Lihu Avenue, 214122, China
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214
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Gueguen N, Lenaers G, Reynier P, Weissig V, Edeas M. Mitochondrial Dysfunction in Mitochondrial Medicine: Current Limitations, Pitfalls, and Tomorrow. Methods Mol Biol 2021; 2276:1-29. [PMID: 34060029 DOI: 10.1007/978-1-0716-1266-8_1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Until recently restricted to hereditary mitochondrial diseases, mitochondrial dysfunction is now recognized as a key player and strategic factor in the pathophysiological of many human diseases, ranging from the metabolism, vascular, cardiac, and neurodegenerative diseases to cancer. Because of their participation in a myriad of cellular functions and signaling pathways, precisely identifying the cause of mitochondrial "dysfunctions" can be challenging and requires robust and controlled techniques. Initially limited to the analysis of the respiratory chain functioning, these analytical techniques now enlarge to the analyses of mitochondrial and cellular metabolism, based on metabolomic approaches.Here, we address the methods used to assay mitochondrial dysfunction, with a highlight on the techniques used in diagnosis on tissues and cells derived from patients, the information they provide, and their strength and weakness.Targeting mitochondrial dysfunction by various strategies is a huge challenge, requires robust methods of evaluation, and should be able to take into consideration the mitochondria dynamics and localization. The future of mitochondrial medicine is strongly related to a perfect comprehension of its dysfunction.
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Affiliation(s)
- Naig Gueguen
- UMR CNRS 6015-INSERM U1083, MitoVasc Institute, University of Angers, Angers, France.,Department of Biochemistry and Genetics, University Hospital of Angers, Angers, France
| | - Guy Lenaers
- UMR CNRS 6015-INSERM U1083, MitoVasc Institute, University of Angers, Angers, France
| | - Pascal Reynier
- UMR CNRS 6015-INSERM U1083, MitoVasc Institute, University of Angers, Angers, France.,Department of Biochemistry and Genetics, University Hospital of Angers, Angers, France
| | - Volkmar Weissig
- Department of Pharmaceutical Sciences and Nanocenter of Excellence, Midwestern University College of Pharmacy at Glendale, Glendale, AZ, USA
| | - Marvin Edeas
- Université de Paris, INSERM U1016, Institut Cochin, CNRS UMR8104, Paris, France. .,Laboratory of Excellence GR-Ex, Paris, France.
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215
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Krishnamoorthy P, Raj AS, Roy S, Kumar NS, Kumar H. Comparative transcriptome analysis of SARS-CoV, MERS-CoV, and SARS-CoV-2 to identify potential pathways for drug repurposing. Comput Biol Med 2021; 128:104123. [PMID: 33260034 PMCID: PMC7683955 DOI: 10.1016/j.compbiomed.2020.104123] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/11/2020] [Accepted: 11/11/2020] [Indexed: 12/15/2022]
Abstract
The ongoing COVID-19 pandemic caused by the coronavirus, SARS-CoV-2, has already caused in excess of 1.25 million deaths worldwide, and the number is increasing. Knowledge of the host transcriptional response against this virus and how the pathways are activated or suppressed compared to other human coronaviruses (SARS-CoV, MERS-CoV) that caused outbreaks previously can help in the identification of potential drugs for the treatment of COVID-19. Hence, we used time point meta-analysis to investigate available SARS-CoV and MERS-CoV in-vitro transcriptome datasets in order to identify the significant genes and pathways that are dysregulated at each time point. The subsequent over-representation analysis (ORA) revealed that several pathways are significantly dysregulated at each time point after both SARS-CoV and MERS-CoV infection. We also performed gene set enrichment analyses of SARS-CoV and MERS-CoV with that of SARS-CoV-2 at the same time point and cell line, the results of which revealed that common pathways are activated and suppressed in all three coronaviruses. Furthermore, an analysis of an in-vivo transcriptomic dataset of COVID-19 patients showed that similar pathways are enriched to those identified in the earlier analyses. Based on these findings, a drug repurposing analysis was performed to identify potential drug candidates for combating COVID-19.
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Affiliation(s)
- Pandikannan Krishnamoorthy
- Department of Biological Sciences, Laboratory of Immunology and Infectious Disease Biology, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal, 462066, MP, India
| | - Athira S Raj
- Department of Biological Sciences, Laboratory of Immunology and Infectious Disease Biology, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal, 462066, MP, India
| | - Swagnik Roy
- Microbiology Department, Zoram Medical College, Falkawn, Mizoram, 796005, India
| | | | - Himanshu Kumar
- Department of Biological Sciences, Laboratory of Immunology and Infectious Disease Biology, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal, 462066, MP, India; Laboratory of Host Defense, WPI Immunology, Frontier Research Centre, Osaka University, Osaka, 5650871, Japan.
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216
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Choudhary S, Sharma K, Silakari O. The interplay between inflammatory pathways and COVID-19: A critical review on pathogenesis and therapeutic options. Microb Pathog 2020; 150:104673. [PMID: 33278517 PMCID: PMC7709793 DOI: 10.1016/j.micpath.2020.104673] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/28/2020] [Accepted: 11/27/2020] [Indexed: 02/06/2023]
Abstract
COVID-19, caused by SARS-CoV-2, emerged as the deadliest outbreak that has now become a serious health issue to mankind. Activation of inflammatory signaling pathways and cytokine storm are crucial factors that lead to acute respiratory distress syndrome (ARDS) in COVID-19 patients. Excessive secretion of pro-inflammatory cytokines and chemokines leads to the dysregulation of the innate immune system. The cytokine storm attracts many inflammatory cells that infiltrate into the lung tissues and ultimately cause immune damage. In addition to the dysregulation of the immune system, dysfunction of the renin-angiotensin system (RAS) due to the downregulation of ACE2 is also associated with the mortality of COVID-19 patients. Both the mechanisms are directly or indirectly associated with cytokine storm that promotes vascular hyperpermeability, vascular edema leading to hypercoagulation and hence multiorgan damage. As of now, there is no specific treatment available for COVID-19, but scientists have purposed several treatment options including cytokine inhibitors, JAK inhibitors, immunomodulators, plasma therapy, etc. In this article, we have provided the detailed mechanism of occurrence of SARS-CoV-2 induced inflammatory storm and its connection with the pre-existing inflammatory conditions. Possible treatment options to cope up with the severe clinical manifestations of COVID-19 are also discussed.
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Affiliation(s)
- Shalki Choudhary
- Molecular Modeling Lab, Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, 147002, India
| | - Kajal Sharma
- Molecular Modeling Lab, Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, 147002, India
| | - Om Silakari
- Molecular Modeling Lab, Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab, 147002, India.
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217
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Mitochondria at Work: New Insights into Regulation and Dysregulation of Cellular Energy Supply and Metabolism. Biomedicines 2020; 8:biomedicines8110526. [PMID: 33266387 PMCID: PMC7700424 DOI: 10.3390/biomedicines8110526] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/10/2020] [Accepted: 11/18/2020] [Indexed: 12/14/2022] Open
Abstract
Mitochondria are of great relevance to health, and their dysregulation is associated with major chronic diseases. Research on mitochondria-156 brand new publications from 2019 and 2020-have contributed to this review. Mitochondria have been fundamental for the evolution of complex organisms. As important and semi-autonomous organelles in cells, they can adapt their function to the needs of the respective organ. They can program their function to energy supply (e.g., to keep heart muscle cells going, life-long) or to metabolism (e.g., to support hepatocytes and liver function). The capacity of mitochondria to re-program between different options is important for all cell types that are capable of changing between a resting state and cell proliferation, such as stem cells and immune cells. Major chronic diseases are characterized by mitochondrial dysregulation. This will be exemplified by cardiovascular diseases, metabolic syndrome, neurodegenerative diseases, immune system disorders, and cancer. New strategies for intervention in chronic diseases will be presented. The tumor microenvironment can be considered a battlefield between cancer and immune defense, competing for energy supply and metabolism. Cancer cachexia is considered as a final stage of cancer progression. Nevertheless, the review will present an example of complete remission of cachexia via immune cell transfer. These findings should encourage studies along the lines of mitochondria, energy supply, and metabolism.
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218
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Li J, Zhang Y, Wang F, Liu B, Li H, Tang G, Chang Z, Liu A, Fu C, Lv Y, Gao J, Li J. Cardiac damage in patients with the severe type of coronavirus disease 2019 (COVID-19). BMC Cardiovasc Disord 2020; 20:479. [PMID: 33167876 PMCID: PMC7652577 DOI: 10.1186/s12872-020-01758-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/26/2020] [Indexed: 01/08/2023] Open
Abstract
Background Coronavirus disease 2019 (COVID-19) has become a global pandemic. Studies showed COVID-19 affected not only the lung but also other organs. In this study, we aimed to explore the cardiac damage in patients with COVID-19. Methods We collected data of 100 patients diagnosed as severe type of COVID-19 from February 8 to April 10, 2020, including demographics, illness history, physical examination, laboratory test, and treatment. In-hospital mortality were observed. Cardiac damage was defined as plasma hypersensitive troponin I (hsTnI) over 34.2 pg/ml and/or N-terminal-pro brain natriuretic peptide (NTproBNP) above 450 pg/ml at the age < 50, above 900 pg/ml at the age < 75, or above 1800 pg/ml at the age ≥ 75. Results The median age of the patients was 62.0 years old. 69 (69.0%) had comorbidities, mainly presenting hypertension, diabetes, and cardiovascular disease. Fever (69 [69.0%]), cough (63 [63.0%]), chest distress (13 [13.0%]), and fatigue (12 [12.0%]) were the common initial symptoms. Cardiac damage occurred in 25 patients. In the subgroups, hsTnI was significantly higher in elder patients (≥ 60 years) than in the young (median [IQR], 5.2 [2.2–12.8] vs. 1.9 [1.9–6.2], p = 0.018) and was higher in men than in women (4.2 [1.9–12.8] vs. 2.9 [1.9–7.4], p = 0.018). The prevalence of increased NTproBNP was significantly higher in men than in women (32.1% vs. 9.1%, p = 0.006), but was similar between the elder and young patients (20.0% vs. 25.0%, p = 0.554). After multivariable analysis, male and hypertension were the risk factors of cardiac damage. The mortality was 4.0%. Conclusions Cardiac damage exists in patients with the severe type of COVID-19, especially in male patients with hypertension. Clinicians should pay more attention to cardiac damage.
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Affiliation(s)
- Jing Li
- Division of Cardiology, Beijing Hospital, #1 Dahua Road, Dongcheng District, Beijing, 100730, China.
| | - Yinghua Zhang
- Division of Cardiology, Xuanwu Hospital Capital Medical University, #45 Changchun Street, Xicheng District, Beijing, 100053, China
| | - Fang Wang
- Division of Cardiology, Beijing Hospital, #1 Dahua Road, Dongcheng District, Beijing, 100730, China
| | - Bing Liu
- Division of Cardiology, Beijing Hospital, #1 Dahua Road, Dongcheng District, Beijing, 100730, China
| | - Hui Li
- Division of Cardiology, Beijing Hospital, #1 Dahua Road, Dongcheng District, Beijing, 100730, China
| | - Guodong Tang
- Division of Cardiology, Beijing Hospital, #1 Dahua Road, Dongcheng District, Beijing, 100730, China
| | - Zhigang Chang
- Division of Intensive Care Unit, Beijing Hospital, Beijing, 100730, China
| | - Aihua Liu
- Division of Rheumatology and Immunology, Beijing Hospital, Beijing, 100730, China
| | - Chunyi Fu
- Division of Emergency, Beijing Hospital, Beijing, 100730, China
| | - You Lv
- Division of Cardiology, Beijing Hospital, #1 Dahua Road, Dongcheng District, Beijing, 100730, China
| | - Jing Gao
- Division of Cardiology, Xuanwu Hospital Capital Medical University, #45 Changchun Street, Xicheng District, Beijing, 100053, China.
| | - Jing Li
- Division of Cardiology, Xuanwu Hospital Capital Medical University, #45 Changchun Street, Xicheng District, Beijing, 100053, China. .,National Center Research Center of Geriatric Diseases [Xuanwu Hospital], Beijing, 100053, China.
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219
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Hu J, Li C, Wang S, Li T, Zhang H. Genetic variants are identified to increase risk of COVID-19 related mortality from UK Biobank data. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2020:2020.11.05.20226761. [PMID: 33200144 PMCID: PMC7668757 DOI: 10.1101/2020.11.05.20226761] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background The severity of coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is highly heterogenous. Studies have reported that males and some ethnic groups are at increased risk of death from COVID-19, which implies that individual risk of death might be influenced by host genetic factors. Methods In this project, we consider the mortality as the trait of interest and perform a genome-wide association study (GWAS) of data for 1,778 infected cases (445 deaths, 25.03%) distributed by the UK Biobank. Traditional GWAS failed to identify any genome-wide significant genetic variants from this dataset. To enhance the power of GWAS and account for possible multi-loci interactions, we adopt the concept of super-variant for the detection of genetic factors. A discovery-validation procedure is used for verifying the potential associations. Results We find 8 super-variants that are consistently identified across multiple replications as susceptibility loci for COVID-19 mortality. The identified risk factors on Chromosomes 2, 6, 7, 8, 10, 16, and 17 contain genetic variants and genes related to cilia dysfunctions (DNAH7 and CLUAP1), cardiovascular diseases (DES and SPEG), thromboembolic disease (STXBP5), mitochondrial dysfunctions (TOMM7), and innate immune system (WSB1). It is noteworthy that DNAH7 has been reported recently as the most downregulated gene after infecting human bronchial epithelial cells with SARS-CoV2. Conclusions Eight genetic variants are identified to significantly increase risk of COVID-19 mortality among the patients with white British ancestry. These findings may provide timely evidence and clues for better understanding the molecular pathogenesis of COVID-19 and genetic basis of heterogeneous susceptibility, with potential impact on new therapeutic options.
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Affiliation(s)
| | | | | | - Ting Li
- Department of Biostatistics, Yale University
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220
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Burtscher J, Cappellano G, Omori A, Koshiba T, Millet GP. Mitochondria: In the Cross Fire of SARS-CoV-2 and Immunity. iScience 2020; 23:101631. [PMID: 33015593 PMCID: PMC7524535 DOI: 10.1016/j.isci.2020.101631] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The pathophysiology, immune reaction, and differential vulnerability of different population groups and viral host immune system evasion strategies of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection are not yet well understood. Here, we reviewed the multitude of known strategies of coronaviruses and other viruses to usurp mitochondria-associated mechanisms involved in the host innate immune response and put them in context with the current knowledge on SARS-CoV-2. We argue that maintenance of mitochondrial integrity is essential for adequate innate immune system responses and to blunt mitochondrial modulation by SARS-CoV-2. Mitochondrial health thus may determine differential vulnerabilities to SARS-CoV-2 infection rendering markers of mitochondrial functions promising potential biomarkers for SARS-CoV-2 infection risk and severity of outcome. Current knowledge gaps on our understanding of mitochondrial involvement in SARS-CoV-2 infection, lifestyle, and pharmacological strategies to improve mitochondrial integrity and potential reciprocal interactions with chronic and age-related diseases, e.g., Parkinson disease, are pointed out.
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Affiliation(s)
- Johannes Burtscher
- Institute of Sport Sciences, University of Lausanne, CH-1015 Lausanne, Switzerland
- Department of Biomedical Sciences, University of Lausanne, CH-1015 Lausanne, Switzerland
| | - Giuseppe Cappellano
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases- IRCAD, Università del Piemonte Orientale, 28100 Novara, Italy
- Center for Translational Research on Autoimmune and Allergic Disease-CAAD, Università del Piemonte Orientale, 28100 Novara, Italy
| | - Akiko Omori
- Department of Biology, University of Padova, 35121 Padova, Italy
- Veneto Institute of Molecular Medicine, 35129 Padova, Italy
| | - Takumi Koshiba
- Department of Chemistry, Faculty of Science, Fukuoka University, 814-0180 Fukuoka, Japan
| | - Grégoire P. Millet
- Institute of Sport Sciences, University of Lausanne, CH-1015 Lausanne, Switzerland
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221
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Holder K, Reddy PH. The COVID-19 Effect on the Immune System and Mitochondrial Dynamics in Diabetes, Obesity, and Dementia. Neuroscientist 2020; 27:331-339. [PMID: 32981462 DOI: 10.1177/1073858420960443] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The coronavirus disease 2019 (COVID-19) is a pandemic disease, originated in Wuhan City, China. It is caused by severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) and its biology is still poorly understood. Currently, there are no vaccines and drugs/or agents that can reduce severity of this new disease. Recent data suggest that patients with age-related comorbidities, including cardiovascular disease, diabetes, obesity, hypertension, chronic kidney disease, and dementia are highly susceptible to severe respiratory illness due to coronavirus infection. Recent research also revealed that aged individuals with elevated baseline inflammation cause defects in T and B cells, leading to decreased body's immune response to viral infection. In the current article, we discuss the effects of SARS-CoV-2 on age-related chronic diseases, such as diabetes, obesity, and Alzheimer's disease. Our article also highlights the interaction between coronavirus and immune cells, and how COVID-19 alters mitochondrial activities in host cells. Based on new and compelling evidence, we propose that mitochondrial fission is inhibited while fusion is promoted, causing mitochondrial elongation and providing a receptive intracellular environment for viral replication in infected cells. Further research is still needed to understand the cross talk between viral replication in mitochondria and disease progression in patients with COVID-19.
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Affiliation(s)
- Katherine Holder
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - P Hemachandra Reddy
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA.,Neuroscience & Pharmacology, Texas Tech University Health Sciences Center, Lubbock, TX, USA.,Neurology, Departments of School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA.,Public Health Department of Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, Lubbock, TX, USA.,Department of Speech, Language and Hearing Sciences, School Health Professions, Texas Tech University Health Sciences Center, Lubbock, TX, USA
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222
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Tan DX, Hardeland R. Targeting Host Defense System and Rescuing Compromised Mitochondria to Increase Tolerance against Pathogens by Melatonin May Impact Outcome of Deadly Virus Infection Pertinent to COVID-19. Molecules 2020; 25:molecules25194410. [PMID: 32992875 PMCID: PMC7582936 DOI: 10.3390/molecules25194410] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/19/2020] [Accepted: 09/24/2020] [Indexed: 02/07/2023] Open
Abstract
Fighting infectious diseases, particularly viral infections, is a demanding task for human health. Targeting the pathogens or targeting the host are different strategies, but with an identical purpose, i.e., to curb the pathogen's spreading and cure the illness. It appears that targeting a host to increase tolerance against pathogens can be of substantial advantage and is a strategy used in evolution. Practically, it has a broader protective spectrum than that of only targeting the specific pathogens, which differ in terms of susceptibility. Methods for host targeting applied in one pandemic can even be effective for upcoming pandemics with different pathogens. This is even more urgent if we consider the possible concomitance of two respiratory diseases with potential multi-organ afflictions such as Coronavirus disease 2019 (COVID-19) and seasonal flu. Melatonin is a molecule that can enhance the host's tolerance against pathogen invasions. Due to its antioxidant, anti-inflammatory, and immunoregulatory activities, melatonin has the capacity to reduce the severity and mortality of deadly virus infections including COVID-19. Melatonin is synthesized and functions in mitochondria, which play a critical role in viral infections. Not surprisingly, melatonin synthesis can become a target of viral strategies that manipulate the mitochondrial status. For example, a viral infection can switch energy metabolism from respiration to widely anaerobic glycolysis even if plenty of oxygen is available (the Warburg effect) when the host cell cannot generate acetyl-coenzyme A, a metabolite required for melatonin biosynthesis. Under some conditions, including aging, gender, predisposed health conditions, already compromised mitochondria, when exposed to further viral challenges, lose their capacity for producing sufficient amounts of melatonin. This leads to a reduced support of mitochondrial functions and makes these individuals more vulnerable to infectious diseases. Thus, the maintenance of mitochondrial function by melatonin supplementation can be expected to generate beneficial effects on the outcome of viral infectious diseases, particularly COVID-19.
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Affiliation(s)
- Dun-Xian Tan
- S.T. Bio-Life, San Antonio, TX 78240, USA
- Correspondence: ; Tel.: +1-215-672-550
| | - Ruediger Hardeland
- Johann Friedrich Blumenbach Institute of Zoology and Anthropology, University of Göttingen, 37073 Göttingen, Germany;
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223
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Bellavite P, Donzelli A. Hesperidin and SARS-CoV-2: New Light on the Healthy Function of Citrus Fruits. Antioxidants (Basel) 2020; 9:E742. [PMID: 32823497 PMCID: PMC7465267 DOI: 10.3390/antiox9080742] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 12/13/2022] Open
Abstract
Among the many approaches to Coronavirus disease 2019 (COVID-19) prevention, the possible role of nutrition has so far been rather underestimated. Foods are very rich in substances, with a potential beneficial effect on health, and some of these could have an antiviral action or be important in modulating the immune system and in defending cells from the oxidative stress associated with infection. This short review draws the attention on some components of citrus fruits, and especially of the orange (Citrus sinensis), well known for its vitamin and flavonoid content. Among the flavonoids, hesperidin has recently attracted the attention of researchers, because it binds to the key proteins of the Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Several computational methods, independently applied by different researchers, showed that hesperidin has a low binding energy, both with the coronavirus "spike" protein, and with the main protease that transforms the early proteins of the virus (pp1a and ppa1b) into the complex responsible for viral replication. The binding energy of hesperidin to these important components is lower than that of lopinavir, ritonavir, and indinavir, suggesting that it could perform an effective antiviral action. Furthermore, both hesperidin and ascorbic acid counteract the cell damaging effects of the oxygen free radicals triggered by virus infection and inflammation. There is discussion about the preventive efficacy of vitamin C, at the dose achievable by the diet, but recent reviews suggest that this substance can be useful in the case of strong immune system burden caused by viral disease. Computational methods and laboratory studies support the need to undertake apposite preclinical, epidemiological, and experimental studies on the potential benefits of citrus fruit components for the prevention of infectious diseases, including COVID-19.
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Affiliation(s)
- Paolo Bellavite
- Department of Medicine, Section of General Pathology, University of Verona Medical School, Strada Le Grazie 8, 37134 Verona, Italy
| | - Alberto Donzelli
- Medical Doctor, Scientific Committee of Fondazione Allineare Sanità e Salute, 20122 Milano, Italy;
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