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• W2976393609 abstract "Claudins regulate paracellular permeability in different tissues. The claudin-binding domain of Clostridium perfringens enterotoxin (cCPE) is a known modulator of a claudin subset. However, it does not efficiently bind to claudin-1 (Cldn1). Cldn1 is a pharmacological target since it is (i) an essential co-receptor for hepatitis C virus (HCV) infections and (ii) a key element of the epidermal barrier limiting drug delivery. In this study, we investigated the potential of a Cldn1-binding cCPE mutant (i) to inhibit HCV entry into hepatocytes and (ii) to open the epidermal barrier. Inhibition of HCV infection by blocking of Cldn1 with cCPE variants was analyzed in the Huh7.5 hepatoma cell line. A model of reconstructed human epidermis was used to investigate modulation of the epidermal barrier by cCPE variants. In contrast to cCPEwt, the Cldn1-binding cCPE-S305P/S307R/S313H inhibited infection of Huh7.5 cells with HCV in a dose-dependent manner. In addition, TJ modulation by cCPE variant-mediated targeting of Cldn1 and Cldn4 opened the epidermal barrier in reconstructed human epidermis. cCPE variants are potent claudin modulators. They can be applied for mechanistic in vitro studies and might also be used as biologics for therapeutic claudin targeting including HCV treatment (host-targeting antivirals) and improvement of drug delivery." @default.
• W2976393609 created "2019-10-03" @default.
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• W2976393609 date "2019-09-26" @default.
• W2976393609 modified "2023-10-01" @default.
• W2976393609 title "Use of Modified Clostridium perfringens Enterotoxin Fragments for Claudin Targeting in Liver and Skin Cells" @default.
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• W2976393609 doi "https://doi.org/10.3390/ijms20194774" @default.
• W2976393609 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6801472" @default.
• W2976393609 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31561440" @default.
• W2976393609 hasPublicationYear "2019" @default.
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