How to Restore Oxidative Balance That Was Disrupted by SARS-CoV-2 Infection

Area of Science:

• Biochemistry
• Immunology
• Virology

Background:

• COVID-19, caused by SARS-CoV-2, presents complex pathogenesis involving the renin-angiotensin system.
• Severe disease courses are linked to immune dysregulation, specifically cytokine storms.
• SARS-CoV-2 disrupts oxidative homeostasis, increasing reactive oxygen species (ROS) and inhibiting key antioxidants like glutathione (GSH) and NRF2.

Purpose of the Study:

• To elucidate the mechanisms of oxidative stress induced by SARS-CoV-2.
• To evaluate the potential of antioxidant drugs in mitigating COVID-19's severe outcomes.
• To explore the link between SARS-CoV-2, oxidative stress, and cytokine storm induction via NLRP3 inflammasomes.

Main Methods:

• Review of existing experimental and clinical studies on COVID-19 pathogenesis.
• Analysis of SARS-CoV-2's impact on oxidative homeostasis and antioxidant pathways (GSH, NRF2).
• Investigation into the role of NLRP3 inflammasomes in SARS-CoV-2-induced cytokine storms.

Main Results:

• SARS-CoV-2 actively promotes oxidative stress and inhibits crucial endogenous antioxidant defenses.
• The virus stimulates NLRP3 inflammasomes, contributing to the cytokine storm.
• Antioxidant agents have demonstrated potential benefits in preclinical and clinical settings.

Conclusions:

• SARS-CoV-2-induced oxidative stress and subsequent cytokine storms are key drivers of severe COVID-19.
• Targeting oxidative stress with antioxidant therapies presents a promising strategy to counteract severe disease progression.
• Further research into antioxidant interventions is warranted for COVID-19 treatment.