Abstract

Postoperative cognitive dysfunction (POCD) is a common complication following surgeries involving general anesthesia. Although the CCL5-CCR5 axis is implicated in various neurological conditions, its role in POCD remains unclear. In our POCD model, we observed an increase in CCL5 and CCR5 levels concurrent with microglial activation and significant upregulation of inflammatory cytokines IL-6 and IL-1β. Administration of MVC, a CCR5 antagonist, alleviated neuroinflammation, prevented dendritic spine loss, and improved cognitive deficits by inhibiting the CCR5/CREB/NLRP1 pathway. However, the cognitive benefits of MVC were reversed by the CREB inhibitor 666-15. Our findings highlight the potential of targeting the CCL5-CCR5 axis as a therapeutic strategy for preventing and treating POCD.

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