Zinc promotes autophagy and inhibits apoptosis through AMPK/mTOR signaling pathway after spinal cord injury.

Neuroscience Letters
Sen LinXifan Mei

Abstract

Autophagy is a intracellular biological process that controls the homeostasis of nutrition deprivation and starvation and has been associated with the development of traumatic diseases. Zinc, an important chemical element involved in life activities, has improved nerve recovery effects through intraperitoneal injection. The purpose of this study was to probe the possible modulation of autophagy and apoptosis from the injured spinal cord and neurons by zinc administration. It was shown that zinc significantly induced the level of Beclin1 and LC3B by activating adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) signaling pathway. In addition, zinc suppressed apoptosis in the injured spinal cord. Taken together, these findings suggested that zinc through promoting neurons autophagy and inhibiting apoptosis.

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