SARS-CoV-2: From Structure to Pathology, Host Immune Response and Therapeutic Management

Coronaviruses are large, enveloped viruses with a single-stranded RNA genome, infecting both humans and a wide range of wild and domestic animals. SARS-CoV-2, the agent of the COVID-19 pandemic, has 80% sequence homology with SARS-CoV-1 and 96–98% homology with coronaviruses isolated from bats. The...

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Main Authors: Grigore Mihaescu, Mariana Carmen Chifiriuc, Ciprian Iliescu, Corneliu Ovidiu Vrancianu, Lia-Mara Ditu, Luminita Gabriela Marutescu, Raluca Grigore, Șerban Berteșteanu, Marian Constantin, Gratiela Gradisteanu Pircalabioru
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/8/10/1468
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author Grigore Mihaescu
Mariana Carmen Chifiriuc
Ciprian Iliescu
Corneliu Ovidiu Vrancianu
Lia-Mara Ditu
Luminita Gabriela Marutescu
Raluca Grigore
Șerban Berteșteanu
Marian Constantin
Gratiela Gradisteanu Pircalabioru
author_facet Grigore Mihaescu
Mariana Carmen Chifiriuc
Ciprian Iliescu
Corneliu Ovidiu Vrancianu
Lia-Mara Ditu
Luminita Gabriela Marutescu
Raluca Grigore
Șerban Berteșteanu
Marian Constantin
Gratiela Gradisteanu Pircalabioru
author_sort Grigore Mihaescu
collection DOAJ
description Coronaviruses are large, enveloped viruses with a single-stranded RNA genome, infecting both humans and a wide range of wild and domestic animals. SARS-CoV-2, the agent of the COVID-19 pandemic, has 80% sequence homology with SARS-CoV-1 and 96–98% homology with coronaviruses isolated from bats. The spread of infection is favored by prolonged exposure to high densities of aerosols indoors. Current studies have shown that SARS-CoV-2 is much more stable than other coronaviruses and viral respiratory pathogens. The severe forms of infection are associated with several risk factors, including advanced age, metabolic syndrome, diabetes, obesity, chronic inflammatory or autoimmune disease, and other preexisting infectious diseases, all having in common the pre-existence of a pro-inflammatory condition. Consequently, it is essential to understand the relationship between the inflammatory process and the specific immune response in SARS-CoV-2 infection. In this review, we present a general characterization of the SARS-CoV-2 virus (origin, sensitivity to chemical and physical factors, multiplication cycle, genetic variability), the molecular mechanisms of COVID-19 pathology, the host immune response and discuss how the inflammatory conditions associated with different diseases could increase the risk of COVID-19. Last, but not least, we briefly review the SARS-CoV-2 diagnostics, pharmacology, and future approaches toward vaccine development.
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spelling doaj.art-57836be726b34be980207a67c05bbb2c2023-11-20T14:59:02ZengMDPI AGMicroorganisms2076-26072020-09-01810146810.3390/microorganisms8101468SARS-CoV-2: From Structure to Pathology, Host Immune Response and Therapeutic ManagementGrigore Mihaescu0Mariana Carmen Chifiriuc1Ciprian Iliescu2Corneliu Ovidiu Vrancianu3Lia-Mara Ditu4Luminita Gabriela Marutescu5Raluca Grigore6Șerban Berteșteanu7Marian Constantin8Gratiela Gradisteanu Pircalabioru9Microbiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, RomaniaMicrobiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, RomaniaNational Institute for Research and Development in Microtechnologies—IMT, 077190 Bucharest, RomaniaMicrobiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, RomaniaMicrobiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, RomaniaMicrobiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, RomaniaENT Department, University of Medicine and Pharmacy Carol Davila and Coltea Clinical Hospital, 020022 Bucharest, RomaniaENT Department, University of Medicine and Pharmacy Carol Davila and Coltea Clinical Hospital, 020022 Bucharest, RomaniaInstitute of Biology, 060031 Bucharest, RomaniaMicrobiology Immunology Department, Faculty of Biology, University of Bucharest, 050095 Bucharest, RomaniaCoronaviruses are large, enveloped viruses with a single-stranded RNA genome, infecting both humans and a wide range of wild and domestic animals. SARS-CoV-2, the agent of the COVID-19 pandemic, has 80% sequence homology with SARS-CoV-1 and 96–98% homology with coronaviruses isolated from bats. The spread of infection is favored by prolonged exposure to high densities of aerosols indoors. Current studies have shown that SARS-CoV-2 is much more stable than other coronaviruses and viral respiratory pathogens. The severe forms of infection are associated with several risk factors, including advanced age, metabolic syndrome, diabetes, obesity, chronic inflammatory or autoimmune disease, and other preexisting infectious diseases, all having in common the pre-existence of a pro-inflammatory condition. Consequently, it is essential to understand the relationship between the inflammatory process and the specific immune response in SARS-CoV-2 infection. In this review, we present a general characterization of the SARS-CoV-2 virus (origin, sensitivity to chemical and physical factors, multiplication cycle, genetic variability), the molecular mechanisms of COVID-19 pathology, the host immune response and discuss how the inflammatory conditions associated with different diseases could increase the risk of COVID-19. Last, but not least, we briefly review the SARS-CoV-2 diagnostics, pharmacology, and future approaches toward vaccine development.https://www.mdpi.com/2076-2607/8/10/1468SARS-CoV-2COVID-19immune responseinflammation
spellingShingle Grigore Mihaescu
Mariana Carmen Chifiriuc
Ciprian Iliescu
Corneliu Ovidiu Vrancianu
Lia-Mara Ditu
Luminita Gabriela Marutescu
Raluca Grigore
Șerban Berteșteanu
Marian Constantin
Gratiela Gradisteanu Pircalabioru
SARS-CoV-2: From Structure to Pathology, Host Immune Response and Therapeutic Management
Microorganisms
SARS-CoV-2
COVID-19
immune response
inflammation
title SARS-CoV-2: From Structure to Pathology, Host Immune Response and Therapeutic Management
title_full SARS-CoV-2: From Structure to Pathology, Host Immune Response and Therapeutic Management
title_fullStr SARS-CoV-2: From Structure to Pathology, Host Immune Response and Therapeutic Management
title_full_unstemmed SARS-CoV-2: From Structure to Pathology, Host Immune Response and Therapeutic Management
title_short SARS-CoV-2: From Structure to Pathology, Host Immune Response and Therapeutic Management
title_sort sars cov 2 from structure to pathology host immune response and therapeutic management
topic SARS-CoV-2
COVID-19
immune response
inflammation
url https://www.mdpi.com/2076-2607/8/10/1468
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