SLU-PP-332 is a first-in-class, small-molecule agonist of the estrogen-related receptors (ERRα, ERRβ, and ERRγ). It is being studied for its potent ability to mimic the metabolic and physiological effects of endurance exercise. Chemical Class: Small molecule ERR pan-agonist Primary Targets: ERRα, ERRβ, ERRγ Classification: Exercise mimetic compound Research Status: Preclinical investigation Estrogen-Related Receptors (ERRs) are orphan nuclear receptors that regulate genes involved in: - Mitochondrial biogenesis - Oxidative metabolism - Cellular energy production Unlike estrogen receptors, ERRs do not bind estrogen but share structural similarities. SLU-PP-332 directly binds and activates all three ERR subtypes. By activating ERR signaling, SLU-PP-332 induces a metabolic state similar to physical exercise: | Effect | Mechanism | |--------|-----------| | Increased Mitochondrial Mass | Upregulates PGC-1α and mitochondrial genes | | Enhanced Fatty Acid Oxidation | Promotes lipid utilization as energy source | | Glucose Regulation | Improves insulin sensitivity and GLUT4 expression | | Muscle Adaptation | Promotes oxidative fiber type switching | Studies in sedentary mice demonstrated remarkable improvements: | Parameter | Improvement | |-----------|-------------| | Treadmill Running Time | +70% increase | | Running Distance | +45% increase | | Fatigue Resistance | Significantly enhanced | Billon C et al. (2023) J Pharmacol Exp Ther In diet-induced obesity models, SLU-PP-332 demonstrated: - Reduced body fat mass without decreasing food intake - Lower blood glucose and insulin levels - Prevention of weight gain on high-fat diets - Improved metabolic flexibility Research indicates SLU-PP-332 promotes the transition to oxidative (Type I) muscle fibers, which are: - More resistant to fatigue - Higher in mitochondrial density - More efficient at fat oxidation - Characteristic of endurance-trained athletes | ERR Subtype | Location | Primary Function | |-------------|----------|------------------| | ERRα | Ubiquitous | Mitochondrial biogenesis, fatty acid oxidation | | ERRβ | Limited | Cellular differentiation | | ERRγ | Heart, muscle, brain | Oxidative metabolism, cardiac function | SLU-PP-332 activates all three subtypes, providing comprehensive metabolic activation. | Application | Mechanism | Status | |-------------|-----------|--------| | Exercise Mimetics | ERR-mediated metabolic enhancement | Validated | | Obesity Research | Increased energy expenditure | Preclinical | | Sarcopenia | Muscle fiber optimization | Investigational | | Metabolic Syndrome | Glucose/lipid homeostasis | Preclinical | The "exercise in a pill" concept addresses: - Mobility limitations preventing exercise - Age-related exercise intolerance - Metabolic conditions requiring enhanced oxidative capacity - Recovery from injury or illness - Store lyophilized powder at -20°C - Protect from light and moisture - Reconstitute according to research protoco
SLU-PP-332: ERR Agonist Research Guide
Comprehensive overview of SLU-PP-332, a first-in-class ERR agonist studied for its ability to mimic the metabolic and physical benefits of endurance exercise.