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Pharmacological inhibition of tyrosine kinase 2 preserves interferon-λ-mediated protection (airway epithelial cells)

ABSTRACT: Treating inflammatory diseases with Janus kinase 1/2 (JAK1/2) inhibitors bears the risk that patients acquire viral infections due to unwanted immune suppression. Tyrosine kinase 2 (TYK2), a JAK family member, is required for type I interferon (IFN-α/β) signaling, but its role in type III IFN (IFN-λ) signaling is still under debate. We found that the selective TYK2 inhibitor BMS-986165 blocked potentially noxious type I IFN signaling without altering IFN-λ-mediated gene expression. We show that epithelial cells do not require TYK2 for IFN-λ-mediated signaling or antiviral protection. Lack of TYK2 diminished IFN-α-induced protection against lethal influenza virus infection of mice, but did not impair IFN-λ-mediated antiviral protection. Our findings suggest that selective TYK2 inhibitors likely represent a superior treatment option for type I interferonopathies than broadly acting JAK1/2 inhibitors, as selective TYK2 inhibitors may counteract inflammatory responses without abolishing the beneficial antiviral effects of IFN-λ.

ORGANISM(S): Mus musculus

PROVIDER: GSE146102 | GEO | 2021/04/09

REPOSITORIES: GEO

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