ICAM5如何改善酒精依赖？2024神经机制与CaMKII通路最新研究

本文揭示ICAM5海马过表达可显著降低酒精依赖小鼠的酒精偏好并改善认知运动功能，机制涉及CaMKII自磷酸化抑制、F-actin细胞骨架调控及Arc系统介导的突触可塑性变化。组学分析证实其通过细胞外基质和蛋白磷酸化修饰发挥长效作用。

Overexpression of ICAM5 in the hippocampus can reduce alcohol preference in alcohol-dependent mice, and this effect persists even after alcohol withdrawal and relapse.
Overexpression of ICAM5 in the hippocampus can improve learning and memory as well as motor balance impairments caused by chronic alcohol exposure in mice.
ICAM5 is primarily localized in the dendritic structures of neurons in the CA1 region of the hippocampus, with minimal or no distribution in microglia and astrocytes.
Omics analysis suggests that the influence of ICAM5 on alcohol preference in mice may be mediated through the regulation of extracellular matrix components, cytoskeletal function, and protein phosphorylation modifications. Mechanistic studies indicate that ICAM5 may exert its effects by inhibiting the autophosphorylation of neuronal CaMKII, thereby reducing excessive polymerization of the cytoskeletal protein F-actin. Additionally, ICAM5 may modulate synaptic plasticity changes in neurons through the involvement of the Arc system, ultimately improving alcohol-related behaviors in mice.