• Journal of neurotrauma · Sep 2022

    Fluvoxamine confers neuroprotection via inhibiting infiltration of peripheral leukocytes and M1 polarization of microglia/macrophages in a mouse model of traumatic brain injury.

    • Mingming Shi, Liang Mi, Fanjian Li, Ying Li, Yuan Zhou, Fanglian Chen, Liang Liu, Yan Chai, Weidong Yang, Jianning Zhang, and Xin Chen.
    • Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, P.R. China.
    • J. Neurotrauma. 2022 Sep 1; 39 (17-18): 1240-1261.

    AbstractNeuroinflammation is an important mediator of secondary injury pathogenesis that exerts dual beneficial and detrimental effects on pathophysiology of the central nervous system (CNS) after traumatic brain injury (TBI). Fluvoxamine is a serotonin selective reuptake inhibitor (SSRI) and has been reported to have the anti-inflammatory properties. However, the mechanisms and therapeutic effects of fluvoxamine in neuroinflammation after TBI have not be defined. In this study, we showed that fluvoxamine inhibited peripheral immune cell infiltration and glia activation at 3 days in mice subjected to TBI. Fluvoxamine treatment promoted microglial/macrophage phenotypic transformation from pro-inflammatory M1-phenotype to anti-inflammatory M2-phenotype in in vivo and in vitro experiments. In addition, fluvoxamine treatment attenuated neuronal apoptosis, blood-brain barrier (BBB) disruption, cerebrovascular damage, and post-traumatic edema formation, thereby improving neurological function of mice subjected to TBI. These findings support the clinical evaluation of fluvoxamine as a neuroprotective therapy for TBI.

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