1. Disrupting TSLP–TSLP receptor interactions via putative small molecule inhibitors yields a novel and efficient treatment option for atopic diseases.
- Author
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Adhikary, Partho Protim, Idowu, Temilolu, Tan, Zheng, Hoang, Christopher, Shanta, Selina, Dumbani, Malti, Mappalakayil, Leah, Awasthi, Bhuwan, Bermudez, Marcel, Weiner, January, Beule, Dieter, Wolber, Gerhard, Page, Brent DG, and Hedtrich, Sarah
- Abstract
Thymic stromal lymphopoietin (TSLP) is a key player in atopic diseases, which has sparked great interest in therapeutically targeting TSLP. Yet, no small-molecule TSLP inhibitors exist due to the challenges of disrupting the protein–protein interaction between TSLP and its receptor. Here, we report the development of small-molecule TSLP receptor inhibitors using virtual screening and docking of >1,000,000 compounds followed by iterative chemical synthesis. BP79 emerged as our lead compound that effectively abrogates TSLP-triggered cytokines at low micromolar concentrations. For in-depth analysis, we developed a human atopic disease drug discovery platform using multi-organ chips. Here, topical application of BP79 onto atopic skin models that were co-cultivated with lung models and Th2 cells effectively suppressed immune cell infiltration and IL-13, IL-4, TSLP, and periostin secretion, while upregulating skin barrier proteins. RNA-Seq analysis corroborate these findings and indicate protective downstream effects on the lungs. To the best of our knowledge, this represents the first report of a potent putative small molecule TSLPR inhibitor which has the potential to expand the therapeutic and preventive options in atopic diseases. Synopsis: A potent small molecule TSLPR inhibitor was identified as a novel therapeutic option for atopic diseases. The small molecule BP79 effectively abrogates TSLP-triggered immune reactions at low micromolar concentrations in human skin and lungs. BP79 can be topically applied and, thus, provides significant advantages over the current TSLP antibodies. A human-based atopic disease drug discovery platform was developed with the potential to facilitate preclinical development of atopy-targeting drugs. A potent small molecule TSLPR inhibitor was identified as a novel therapeutic option for atopic diseases. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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