On the whereabouts of SARS-CoV-2 in the human body: A systematic review
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View abstract on PubMed
Summary
This summary is machine-generated.This study maps severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) distribution in human tissues and body fluids, correlating it with ACE2 receptor expression. Findings reveal broad organotropism and complex host-virus interactions for COVID-19.
Area Of Science
- Virology
- Pathogenesis
- Human Anatomy
Background
- The emergence of SARS-CoV-2 necessitated rapid understanding of its distribution and host interactions.
- Previous research focused on respiratory aspects, with less comprehensive data on systemic viral spread and receptor expression.
- Effective containment and treatment strategies require detailed knowledge of viral tropism and shedding.
Purpose Of The Study
- To systematically review and map the distribution of SARS-CoV-2 in human tissues and body fluids.
- To correlate viral presence with the expression of the ACE2 receptor across various human organs.
- To elucidate the complex interplay between SARS-CoV-2 and host factors in COVID-19 pathogenesis.
Main Methods
- Systematic literature review of (pre)published studies on SARS-CoV-2.
- Analysis of viral RNA and protein detection in human tissues and body fluids.
- Integration of single-cell ACE2 expression data with viral distribution findings.
- Construction of a comprehensive viral distribution and ACE2 receptor body map.
Main Results
- SARS-CoV-2 components (RNA, proteins) were identified in multiple organs, including the pharynx, lungs, heart, brain, and kidneys, demonstrating broad organotropism.
- Viral presence was confirmed in various body fluids such as saliva, urine, cerebrospinal fluid, and semen.
- ACE2 receptor expression varied across tissues and did not always correlate directly with SARS-CoV-2 detection, suggesting complex host-virus interactions.
Conclusions
- SARS-CoV-2 exhibits widespread distribution and organotropism in the human body.
- The relationship between ACE2 expression and viral presence is complex, indicating multifaceted pathogenesis.
- This comprehensive mapping provides a foundation for improved diagnostic and therapeutic strategies for COVID-19.
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