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Lessons From COVID-19 on Inborn Errors of Immunity: A Five-Year Narrative Review
Gamze Sonmez1, Gizem Gunduz1, Saliha Esenboga2,3
1Hacettepe University Faculty of Medicine, Ankara, Turkey.
Abstract:
COVID-19 research now provides a coherent picture of the virus's immunological impacts, highlighting immune-evasion mechanisms, the particular vulnerabilities of patients with inborn errors of immunity (IEI), and evolving therapeutics for severe disease. SARS-CoV-2 exploits ACE2 for cell entry and can utilise CD147 to infect immune cells, undermining antiviral defences; recent work details cytokine storm biology, NLRP3 inflammasome activation, and suppression of type I interferon responses. IEI patients are disproportionately affected, often with severe, prolonged courses and persistent PCR positivity. Therapeutic approaches such as convalescent plasma, anti-cytokine agents interferon alpha-2b, and plasma exchange show variable effectiveness, while vaccine performance is challenged by ongoing viral evolution. Together, these insights underscore the need for tailored treatment strategies for IEI populations, vigilant monitoring for immune-escape variants, and continuous adaptation of therapeutic and preventive measures. The aim of this review is to synthesise these findings, evaluate their implications for clinical management, and highlight future directions for research and patient care.
Insights
COVID-19 research reveals SARS-CoV-2 immune evasion and impacts on inborn errors of immunity (IEI) patients. Tailored treatments and variant monitoring are crucial for managing severe disease in vulnerable populations.
Area of Science:
- Immunology
- Virology
- Infectious Diseases
Background:
- SARS-CoV-2 utilizes ACE2 and CD147 for cell entry, impacting immune cells and antiviral defenses.
- Cytokine storm, NLRP3 inflammasome activation, and suppressed Type I interferon responses are key immunological consequences.
- Patients with inborn errors of immunity (IEI) face disproportionately severe and prolonged COVID-19 courses.
Purpose of the Study:
- To synthesize current COVID-19 research on immunological impacts.
- To evaluate therapeutic strategies for severe COVID-19, especially in IEI patients.
- To highlight future research and clinical management directions for COVID-19.
Main Methods:
- Review of recent scientific literature on COVID-19 immunology and therapeutics.
- Analysis of viral immune-evasion mechanisms and host-pathogen interactions.
- Evaluation of treatment effectiveness, including convalescent plasma and anti-cytokine agents.
Main Results:
- SARS-CoV-2 exhibits immune-evasion strategies, affecting immune cell function.
- IEI patients demonstrate heightened vulnerability and persistent viral shedding.
- Therapeutic interventions like convalescent plasma and interferon alpha-2b show variable efficacy.
- Vaccine effectiveness is challenged by viral evolution and immune escape variants.
Conclusions:
- Tailored treatment strategies are essential for IEI populations.
- Vigilant monitoring for immune-escape variants is necessary.
- Continuous adaptation of therapeutic and preventive measures is required for effective COVID-19 management.
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