ArticleBiochemistry and biophysics reports2025
Antimicrobial peptide LL-37 increases rhinovirus-induced interferon β expression in human airway epithelial cells through a Ca
Article in Biochemistry and biophysics reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The human cathelicidin LL-37 is active against both bacteria and viruses, but it also shows immunomodulatory properties. Here, we assess the impact of LL-37 on viral signaling in human airway epithelial BEAS-2B cells infected with the respiratory pathogen rhinovirus (RV). We show that LL-37 (4 μM) enhances RV-induced expression of interferon β (IFNβ) transcript and reduces viral-load. LL-37-evoked potentiation of RV-stimulated IFNβ does not involve up-regulation of the classical viral TLR3, MDA5 and RIG-I receptors. Moreover, the LL-37-induced stimulation of IFNβ expression in the presence of RV is abolished by chloroquine, an inhibitor of endosomal acidification. Interestingly, RV + LL-37-induced stimulation of IFNβ is observed in the absence but not in the presence of the Ca
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