From your nose to your toes: a review of severe acute respiratory syndrome coronavirus 2 pandemic‒associated pernio

Date
2021
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Source Title
Journal of Investigative Dermatology
Print ISSN
0022-202X
Electronic ISSN
1523-1747
Publisher
Elsevier Ltd
Volume
141
Issue
12
Pages
2791 - 2796
Language
English
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Abstract

Despite thousands of reported patients with pandemic-associated pernio, low rates of seroconversion and PCR positivity have defied causative linkage to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Pernio in uninfected children is associated with monogenic disorders of excessive IFN-1 immunity, whereas severe COVID-19 pneumonia can result from insufficient IFN-1. Moreover, SARS-CoV-2 spike protein and robust IFN-1 response are seen in the skin of patients with pandemic-associated pernio, suggesting an excessive innate immune skin response to SARS-CoV-2. Understanding the pathophysiology of this phenomenon may elucidate the host mechanisms that drive a resilient immune response to SARS-CoV-2 and could produce relevant therapeutic targets.

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Published Version (Please cite this version)