Pano believes that the principal mechanism of action that drives the broad therapeutic potential of biguanide drugs is the partial inhibition of mitochondrial Complex I and consequent indirect activation of AMPK and inhibition of mTOR. Modulation of these pathways results in inter-related benefits such as:
1. Breaking the connection between abnormal metabolism and associated diseases - intervention into pathways directly associated with the onset and progression of a range of disease states associated with mitochondrial dysfunction and metabolic dysregulation;
2. Enhancing metabolism and mitochondrial homeostasis - mediation of the cellular responses to energetic stress such as mitochondrial dynamics and quality control to promote mitochondrial homeostasis, function, health, and resilience.
Biguanides variably rely on Organic Cation Transporters (OCTs) to access cells and their engage with their mitochondrial target. These OCTs are themselves highly variable in their expression across different tissues and organs.
Metformin, a biguanide drug and one of the most prescribed drug worldwide, has been used for decades as the first-line treatment for type 2 diabetes. More recently, Metformin has been demonstrated to be an interesting prototype biguanide drug for numerous therapeutic applications, including the treatment of various cancers and degenerative disorders, inter alia. Notwithstanding Metformin’s prototypical prospects across therapeutic areas, there has been very limited success to date in its clinical development indications other than type 2 diabetes. Pano believes that Metformin’s therapeutic applications have been substantially limited by its low potency at its mitochondrial target, poor PK, and ADME dependence on OCTs resulting in inappropriate tissue distribution & exposure as well as safety concerns for select applications.
Pano has developed and implemented a platform for the discovery of biguanide drug candidates that have both:
1. Selective & enhanced activity across the full range of OCTs to enable tissue targeting & enrichment for a range of therapeutic and preventive applications;
2. Enhanced partial inhibition potency at mitochondrial Complex I.