Unveiling chronic spontaneous urticaria pathophysiology through systems biology - 01/02/23
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Abstract |
Background |
Chronic spontaneous urticaria (CSU) is a rare, heterogeneous, severely debilitating, and often poorly controlled skin disease resulting in an itchy eruption that can be persistent. Antihistamines and omalizumab, an anti-IgE mAb, are the only licensed therapies. Although CSU pathogenesis is not yet fully understood, mast cell activation through the IgE:high-affinity IgE receptor (FcεRI) axis appears central to the disease process.
Objective |
We sought to model CSU pathophysiology and identify in silico the mechanism of action of different CSU therapeutic strategies currently in use or under development.
Methods |
Therapeutic performance mapping system technology, based on systems biology and machine learning, was used to create a CSU interactome validated with gene expression data from patients with CSU and a CSU model that was used to evaluate CSU pathophysiology and the mechanism of action of different therapeutic strategies.
Results |
Our models reflect the known role of mast cell activation as a central process of CSU pathophysiology, as well as recognized roles for different therapeutic strategies in this and other innate and adaptive immune processes. They also allow determining similarities and differences between them; anti-IgE and Bruton tyrosine kinase inhibitors play a more direct role in mast cell biology through abrogation of FcεRI signaling activity, whereas anti-interleukins and anti–Siglec-8 have a role in adaptive immunity modulation.
Conclusion |
In silico CSU models reproduced known CSU and therapeutic strategies features. Our results could help advance understanding of therapeutic mechanisms of action and further advance treatment research by patient profile.
Le texte complet de cet article est disponible en PDF.Key words : Machine learning, chronic spontaneous urticaria, system biology, artificial intelligence, mast cells
Abbreviations used : ANN, BTKI, CindU, CSU, FcεRI, FcεRII (CD23), IL4R, ILR5A, Siglec-8, TPMS
Plan
This research and medical writing were funded by Novartis. |
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Disclosure of potential conflict of interest: M. Ferrer has received honoraria (advisory board participation and fees speaker) from Genentech, Menarini, Uriach, FAES, MSD, and Novartis, as well as research grants from GSK and Novartis. S. Savic has received grants and/or research funding from Novartis, Sobi, and CSL Behring; has served as speaker and/or on scientific advisory boards for Novartis, SOBI, and Takeda; and has received honoraria for educational activities/consultancy/an advisory role from Novartis, SOBI, and Takeda. S. Smeets and P. Terradas are full-time employees of Novartis. C. Segú-Vergés, L. Artigas, and J. Gómez are full-time employees of Anaxomics. The funders had no role in design of the study; collection, analyses, or interpretation of the data; or drafting of the article. |
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