How the pathway is discussed
The mechanism most often cited for MOTS-c is activation of the AMPK pathway, a central cellular energy sensor, together with interaction with the folate and one-carbon cycle. The foundational cell and animal work reported changes in folate-cycle intermediates, increased AICAR and AMPK activation.
Metabolic-stress signalling
Under metabolic stress, cell research describes MOTS-c translocating to the nucleus and influencing adaptive, stress-responsive gene expression in an AMPK-dependent manner. Animal models have examined glucose handling, skeletal-muscle metabolism and metabolic demand. The phrase “exercise-mimetic” is research shorthand for overlapping signalling pathways—not a demonstrated clinical effect.
