Scientists Identify Miro1 Protein as a Potential Target for Type 2 Diabetes

Type 2 diabetes develops when the body cannot use insulin effectively and, over time, may also fail to produce enough insulin to maintain normal blood glucose. Skeletal muscle is a major site of glucose uptake, making its response to insulin important for metabolic health.

Researchers investigated Miro1, a protein associated with mitochondria, the structures that help cells produce energy. Their findings suggest that excess Miro1 may interfere with normal insulin signalling in muscle. In experimental models, removing the protein improved the muscle's response to insulin.

The study also included an exercise intervention involving people with obesity and type 2 diabetes. Researchers reported that aerobic exercise reduced muscle Miro1 levels alongside improvements in insulin sensitivity and muscle energy function.

These findings may help identify future treatment targets, but Miro1 is not an established clinical target yet. The results do not mean patients should change medication or rely on exercise alone to manage diabetes. Further research is needed to establish how the mechanism could be translated into safe and effective treatments.