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A3 Adenosine Receptor Positive Allosteric Modulators

Selective A3AR agonists are sought as potential agents for treating inflammatory diseases, chronic pain, cancer and non-alcoholic steatohepatitis (NASH). NIDDK investigators have invented new chemical composition as positive allosteric modulators (PAMs) of the A3AR. These chemical compounds contain sterically constrained, bridged modifications and cycloalkyl rings of various sizes, as well as modifications of the 4-arylamino group. The compounds have added three-dimensionality to otherwise flat molecules, which helps distinguish their positive (desired) and negative (undesired) pharmacological effects on the action of A3AR agonists. Unlike agonists that have side effects, PAM action can be event- and site-specific because adenosine is endogenously elevated in response to localized distress signals within the body.

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Jacobson, Kenneth


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Last Reviewed February 2024