Administration of sevoflurane (SEVO) may induce learning and memory deficits, which increases the chances of developing Alzheimer’s disease. Here, we studied the effects of SEVO exposure on rats with a focus on the role of insulin-like growth factor (IGF) signaling. SEVO exposure significantly increased neuron cell apoptosis, and caused poor performance of the rats in behavior tests, by suppressing IGF-1 receptor (IGF1R). Bioinformatic analysis predicted microRNA(miR)-223-3p as an IGF1R-binding miRNA, the level of which increased in neurons after exposure to SEVO. In vitro, miR-223-3p suppressed the translation of IGF1R in neural cells. Moreover, transfection with antisense of miR-223-3p significantly attenuated SEVO exposure-induced neuron cell apoptosis. Taken together, these data suggest that SEVO-induced miR-223-3p upregulation suppresses IGF1R to impair IGF signaling, which subsequently leads to learning and memory impairments.
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