期刊
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
卷 209, 期 -, 页码 -出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejmech.2020.112869
关键词
STING; Interferon genes; Immunotherapy; Cytokines
A study identified several potent small molecule human STING activators, which have the potential to be developed as immunomodulatory therapeutics. These compounds demonstrated significant on-target activation of STING in cells, showing promise for the development of therapeutic drugs.
The adaptor protein STING plays a major role in innate immune sensing of cytosolic nucleic acids, by triggering a robust interferon response. Despite the importance of this protein as a potential therapeutic target for serious unmet medical conditions including cancer and infectious disease there remains a paucity of STING ligands. Starting with a benzothiazinone series of weak STING activators (human EC50 similar to 10 mu M) we identified several chemotypes with sub-micromolar STING activity across all the major protein polymorphs. An example compound 53 based on an oxindole core structure demonstrated robust on-target functional activation of STING (human EC50 185 nM) in immortalised and primary cells and a cytokine induction fingerprint consistent with STING activation. Our study has identified several related series of potent small molecule human STING activators with potential to be developed as immunomodulatory therapeutics. (c) 2020 Elsevier Masson SAS. All rights reserved.
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