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无毛小鼠模型中的辐射皮肤炎模仿了人类辐射皮肤炎

Jessica Lawrence^1,2,3,4, Davis Seelig^5,6, Kimberly Demos-Davies⁵

¹Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, 1365 Gortner Ave, St Paul, MN, 55108, USA. jlawrence@ucdavis.edu.

Scientific reports

|October 22, 2024

概括

放射性皮肤炎显著影响癌症患者,但缺乏有效的治疗方法. 这项研究建立了一个新的小鼠模型,以更好地了解和开发辐射诱导皮肤损伤的干预措施.

科学领域:

在瘤学瘤学.
皮肤病学皮肤病学
辐射生物学辐射生物学

背景情况:

放射治疗是一种常见的癌症治疗方法,影响了超过一半的患者.
辐射皮肤炎是一种常见的副作用,会引起疼痛并阻碍瘤的控制.
由于缺乏合适的动物模型,目前的辐射皮肤炎预防和治疗策略是无效的.

研究的目的:

建立和描述人类辐射皮肤炎的无毛SKH-1小鼠模型.
为了在模型中将临床和病理性皮肤损伤阶段相关联.
为临床前干预研究确定可测量的参数.

主要方法:

一次30 Gy剂量6 MeV电子辐射给无毛的SKH-1小鼠.
临床毒性在25天内进行评估,毒性在第12天达到峰值.
组织病理学分析检查了炎症变化,蛋白质表达 (TGF-ß1,COX-2) 和组织变化.

主要成果:

该模型在12天内显示出严重的临床3级毒性 (血红,脱皮,),25天后消失.
组织病理学揭示了独特的时间性炎症变化.
TGF-β1和COX-2的上调发生在皮肤炎的高峰期,并持续表达TGF-β1.

结论:

没有毛的SKH-1小鼠模型准确地模仿了人类辐射皮肤炎.
特定的组织病理学变量 (表皮厚化,超化,纤维化) 是评估缓解策略的可靠标志物.
该模型为开发有效的放射性皮肤炎治疗提供了宝贵的工具.

关键词:

皮肤炎是一种皮肤炎.炎症炎症是一种炎症.辐射辐射辐射辐射辐射辐射辐射皮肤皮肤皮肤皮肤在TGF-ß1 翻译服务翻译服务

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