Recent Insight into SARS-CoV2 Immunopathology and Rationale for Potential Treatment and Preventive Strategies in

Sara Lega1, Samuele Naviglio1, Stefano Volpi2

  • 1Institute for Maternal and Child Health IRCCS Burlo Garofolo, 34137 Trieste, Italy.

Vaccines
|May 20, 2020
PubMed

Insights

This review examines how the severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) interacts with the human immune system. It highlights the role of hyper-inflammation in severe COVID-19 and discusses potential drug treatments.

Area of Science:

  • Immunology
  • Virology
  • Pharmacology

Background:

  • The global spread of SARS-CoV-2 necessitates understanding disease pathogenesis.
  • Host immune response, particularly hyper-inflammation, is critical in determining COVID-19 severity.
  • Current COVID-19 management is primarily supportive, with ongoing research into therapeutic interventions.

Purpose of the Study:

  • To review the current knowledge on SARS-CoV-2 and host immune system interactions.
  • To discuss recent findings on potential pharmacologic treatments for severe COVID-19.

Main Methods:

  • Literature review of current research on SARS-CoV-2 pathogenesis.
  • Analysis of clinical observations regarding disease progression.
  • Summary of studies on antiviral and immunomodulating drug efficacy.

Main Results:

  • SARS-CoV-2 infection triggers a complex immune response.
  • Hyper-inflammation significantly contributes to severe disease and mortality.
  • Several antiviral and immunomodulating agents are under investigation for therapeutic potential.

Conclusions:

  • Understanding the interplay between SARS-CoV-2 and the immune system is crucial for effective treatment strategies.
  • Pharmacologic interventions targeting the immune response may reduce COVID-19 morbidity and mortality.
  • Further research is needed to establish the role of specific drugs in managing severe illness.

Related Concept Videos

Microorganisms in Medicine and Therapeutics01:29

Microorganisms in Medicine and Therapeutics

Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
832
Cancer Vaccines01:30

Cancer Vaccines

Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
869
Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
1.6K
Conjugated Proteins02:50

Conjugated Proteins

Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
25.8K
Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
17.7K
Cytotoxic T Cells-mediated Immune Response01:27

Cytotoxic T Cells-mediated Immune Response

Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
6.3K