Type I Interferon Signature in Chilblain-Like Lesions Associated with the COVID-19 Pandemic

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

Contemporarily to the new SARS-CoV-2 mediated COVID-19 pandemic, a rise in patients with acral chilblain lesions has been described. They manifest late after mild disease or asymptomatic exposure to SARS-CoV-2. Their pathogenic evolution is currently unknown. In biopsies from three patients with acral partially ulcerating chilblain lesions that occurred associated to the COVID-19 pandemic, we analysed the expression of type I interferon induced proteins and signal transduction kinases. Histology demonstrated perivascular and periadnexal lymphohistiocytic infiltrates and endothelial dominated MxA-staining, as well as pJAK1 activation. Our findings demonstrate induction of the type I IFN pathway in lesional sections of COVID-19-associated chilblain-like lesions. This may indicate a local antiviral immune activation status associated with preceding exposure to SARS-CoV-2.

Details

Original languageEnglish
Pages (from-to)57-63
Number of pages7
JournalDermatopathology : official journal of the European Society of Dermatopathology (ESDP)
Volume7
Issue number3
Publication statusPublished - 13 Oct 2020
Peer-reviewedYes

External IDs

PubMedCentral PMC7768511
ORCID /0000-0002-4330-1861/work/152544366

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