AG1523

AGG-523 (PF-5212371) is an orally active, reversible, non-hydroxamate, zinc-binding selective inhibitor of ADAMTS4 and ADAMTS5 with IC₅₀ of <0.03 and 0.04 μM. AGG-523 also inhibits MMP-2, -8, 12 activity AGG-523 attenuates release of aggrecanase-generated ARG-aggrecan fragments into synovial fluid, reduces surgery-induced ARG-aggrecan release in rat joint models, and inhibits aggrecanase activity to slow cartilage degradation. AGG-523 can be used for the research of osteoarthritis .

AG1529 is a TRPV1 inhibitor and capsaicinoid-based soft agent with a human TRPV1 IC₅₀ of 0.9-0.93 μM. AG1529 reversibly blocks capsaicin-evoked TRPV1 activation, binds to the TRPV1 capsaicin binding site, moderately affects pH-induced TRPV1 gating, and does not alter voltage- or heat-mediated TRPV1 responses. AG1529 suppresses TRPV1-mediated neuronal excitability, reduces capsaicin- and pH-evoked neuronal firing, abolishes histaminergic and inflammation-mediated TRPV1 sensitization. AG1529 exhibits anti-nociceptive and antipruritic effects, attenuates in vivo hyperalgesia and pruritus, dose-dependently reduces acute histaminergic itch in rodents, and mildly blocks hTRPA1 and hTRPM8 channel activity. AG1529 undergoes hydrolysis and dermal deactivation, minimizes TRPV1-associated side reactions, does not evoke capsaicin-like burning sensation, and does not disrupt physiological thermal regulation. AG1529 can be used for the research of inflammatory cutaneous nociception and acute histaminergic pruritus .