The discovery of potent small molecule cyclic urea activators of STING

STING mediates innate immune responses that are triggered by the presence of cytosolic DNA. Activation of STING to boost antigen recognition is a therapeutic modality that is currently being tested in cancer patients using nucleic-acid based macrocyclic STING ligands. We describe here the discovery...

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Veröffentlicht in:European journal of medicinal chemistry 2022-02, Vol.229, p.114087-114087, Article 114087
Hauptverfasser: Basu, Sourav, Middya, Sandip, Banerjee, Monali, Ghosh, Rajib, Pryde, David C., Yadav, Dharmendra B., Shrivastava, Ritesh, Surya, Arjun
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container_title European journal of medicinal chemistry
container_volume 229
creator Basu, Sourav
Middya, Sandip
Banerjee, Monali
Ghosh, Rajib
Pryde, David C.
Yadav, Dharmendra B.
Shrivastava, Ritesh
Surya, Arjun
description STING mediates innate immune responses that are triggered by the presence of cytosolic DNA. Activation of STING to boost antigen recognition is a therapeutic modality that is currently being tested in cancer patients using nucleic-acid based macrocyclic STING ligands. We describe here the discovery of 3,4-dihydroquinazolin-2(1H)-one based 6,6-bicyclic heterocyclic agonists of human STING that activate all known human variants of STING with high potency. [Display omitted] •Activation of STING is a highly promising approach in immunotherapy.•Optimised heterocyclic STING activators are based on a cyclic urea core.•The series potently activates all known human variants of STING and monkey STING.•An example potently induces release of inflammatory cytokines in PBMCs from monkeys.•An example has good drug-like properties and pharmacokinetics.
doi_str_mv 10.1016/j.ejmech.2021.114087
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subjects Animals
Antineoplastic Agents - chemical synthesis
Antineoplastic Agents - pharmacology
Bridged Bicyclo Compounds, Heterocyclic - chemical synthesis
Bridged Bicyclo Compounds, Heterocyclic - pharmacology
cGAS
Cytosol - chemistry
DNA - chemistry
Haplorhini
Humans
Immune oncology
Immunity, Innate - drug effects
Innate immunity
Interferon
Male
Membrane Proteins - genetics
Membrane Proteins - metabolism
Mice
Mice, Inbred BALB C
Neoplasms - drug therapy
Protein Binding
Signal Transduction
Small Molecule Libraries - chemical synthesis
Small Molecule Libraries - pharmacology
STING
Structure-Activity Relationship
title The discovery of potent small molecule cyclic urea activators of STING
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