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伊尔-6淘汰赛减少了 doxorubicin 诱导的毒性在发育中的小鼠大脑中的毒性

Jonas Yeung¹, Henry Quach², Amy P Wong²

¹Mouse Imaging Centre, Hospital for Sick Children, Toronto, ON, Canada; Translational Medicine, Hospital for Sick Children Research Institute, Toronto, ON, Canada; Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.

Brain, behavior, and immunity

|June 30, 2025

概括

多克索鲁比 (DXR) 化疗导致小鼠的大脑体积减少,部分原因是增加IL-6. 准IL-6可能会减少DXRR.

科学领域:

神经科学是一个神经科学.
在瘤学瘤学.
免疫学免疫学免疫学

背景情况:

德克索鲁比 (DXR) 化疗与癌症患者,特别是儿科幸存者的认知障碍有关.
DXR的有限的血脑屏障透率表明间接的系统机制调解了它的神经毒性.
促炎性细胞因子被认为是DXR诱导的神经毒性的潜在媒介.

研究的目的:

在小儿癌症小鼠模型中研究DXR治疗后细胞因子水平的变化.
评估DXR对大脑毒性的影响,重点关注IL-6的作用.
用遗传淘汰方法评估DXR对大脑体积和神经炎症的影响.

主要方法:

小鼠在相当于儿童年龄 (P17,P19) 接受了DXR,并在P20时进行分析.
细胞因子水平 (IL-6) 在血和脑组织中测量.
纵向体内MRI追踪大脑体积变化;组织学分析检查了神经炎症 (CD68).

主要成果:

DXR治疗显著提高了血和脑组织中的IL-6水平.
在DXR治疗后观察到大脑体积的广泛减少.
输掉IL-6的小鼠显示部分挽救大脑体积损失和减少微质激活 (CD68).

结论:

IL-6在DXR诱导的大脑毒性中发挥着重要作用,尽管血脑屏障的透能力有限,但它可能会调解神经毒性.
向IL-6可能提供一种策略,以减轻化疗诱导的大脑结构变化和癌症幸存者的相关认知缺陷.
这项研究强调IL-6作为治疗目标,用于控制DXR化疗的神经毒性副作用.

关键词:

癌症的生存率癌症的生存率细胞因子 (cytokines) 是一种细胞因子.德克索鲁比辛是一种多克索鲁比辛.历史学历史学历史学炎症炎症是一种炎症.晚期影响后期影响这就是为什么MRI是MRI.鼠标模型模型神经解剖学是一个神经解剖学.结构结构是一个结构.

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