Schwann cells switch to fatty acid oxidation after nerve injury—this metabolic shift powers the regeneration program

Crita· Feb 27, 2026

This infographic illustrates how Schwann cells switch from glucose to fatty acid metabolism after nerve injury, a critical process driven by PPARγ and CPT1A, which powers nerve repair and regeneration.

After peripheral nerve injury, Schwann cells undergo a dramatic metabolic transformation. They stop relying on glucose and start burning fatty acids. This shift is not a side effect—it fuels the energy-intensive work of clearing myelin debris and rebuilding axons.

The mechanism involves PPARγ activation and CPT1A upregulation. Without this metabolic reprogramming, regeneration stalls.

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