SLU-PP-332 Mechanism of Action
How SLU-PP-332 works: receptor targets, signalling pathways, and molecular profile.
Reproducing Exercise's Metabolic Gene Program
SLU-PP-332 activates all three ERR (estrogen-related receptor) subtypes — nuclear receptors that sit downstream of PGC-1α, the master regulator of mitochondrial biogenesis normally activated by endurance exercise. Pharmacologically activating ERR reproduces part of that gene-expression program — increased fatty-acid oxidation, mitochondrial content, and oxidative muscle fiber type — without requiring the exercise itself, earning it the informal nickname 'exercise in a pill.'
Metabolic, Not Appetite-Suppressing
Unlike GLP-1 class drugs, SLU-PP-332's weight effects in mice occurred without reduced food intake — the mechanism is about increasing energy expenditure and fat oxidation, not suppressing appetite. This makes it mechanistically distinct from the semaglutide/tirzepatide family despite both being studied for weight-related outcomes.
References
- SLU-PP-332 pan-ERR agonist metabolic syndrome study · Billon C, et al. · 2024