| Structural highlights
Disease
TYK2_HUMAN Mendelian susceptibility to mycobacterial diseases;Autosomal recessive hyper IgE syndrome. Defects in TYK2 are the cause of protein-tyrosine kinase 2 deficiency (TYK2 deficiency) [MIM:611521; also known as autosomal recessive hyper-IgE syndrome (HIES) with atypical mycobacteriosis. TYK2 deficiency consists of a primary immunodeficiency characterized by recurrent skin abscesses, pneumonia, and highly elevated serum IgE.
Function
TYK2_HUMAN Probably involved in intracellular signal transduction by being involved in the initiation of type I IFN signaling. Phosphorylates the interferon-alpha/beta receptor alpha chain.[1]
Publication Abstract from PubMed
TYK2 is a member of the JAK family of kinases and a key mediator of IL-12, IL-23, and type I interferon signaling. These cytokines have been implicated in the pathogenesis of multiple inflammatory and autoimmune diseases such as psoriasis, rheumatoid arthritis, lupus, and inflammatory bowel diseases. Supported by compelling data from human genetic association studies, TYK2 inhibition is an attractive therapeutic strategy for these diseases. Herein, we report the discovery of a series of highly selective catalytic site TYK2 inhibitors designed using FEP+ and structurally enabled design starting from a virtual screen hit. We highlight the structure-based optimization to identify a lead candidate 30, a potent cellular TYK2 inhibitor with excellent selectivity, pharmacokinetic properties, and in vivo efficacy in a mouse psoriasis model.
Potent and selective TYK2-JH1 inhibitors highly efficacious in rodent model of psoriasis.,Leit S, Greenwood JR, Mondal S, Carriero S, Dahlgren M, Harriman GC, Kennedy-Smith JJ, Kapeller R, Lawson JP, Romero DL, Toms AV, Shelley M, Wester RT, Westlin W, McElwee JJ, Miao W, Edmondson SD, Masse CE Bioorg Med Chem Lett. 2022 Oct 1;73:128891. doi: 10.1016/j.bmcl.2022.128891. Epub , 2022 Jul 13. PMID:35842205[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Colamonici O, Yan H, Domanski P, Handa R, Smalley D, Mullersman J, Witte M, Krishnan K, Krolewski J. Direct binding to and tyrosine phosphorylation of the alpha subunit of the type I interferon receptor by p135tyk2 tyrosine kinase. Mol Cell Biol. 1994 Dec;14(12):8133-42. PMID:7526154
- ↑ Leit S, Greenwood JR, Mondal S, Carriero S, Dahlgren M, Harriman GC, Kennedy-Smith JJ, Kapeller R, Lawson JP, Romero DL, Toms AV, Shelley M, Wester RT, Westlin W, McElwee JJ, Miao W, Edmondson SD, Masse CE. Potent and selective TYK2-JH1 inhibitors highly efficacious in rodent model of psoriasis. Bioorg Med Chem Lett. 2022 Oct 1;73:128891. PMID:35842205 doi:10.1016/j.bmcl.2022.128891
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