一种新的动物模型的 tegafur诱导的手脚综合征
Misato Takano-Mochizuki1, Kota Nakajima2, Tomomi Ishida3
1Global Drug Safety, Biopharmaceutical Assessment Unit, Eisai Co., Ltd., 5-1-3 Tokodai, Tsukuba, Ibaraki 300-2635, Japan; Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8577, Japan.
Toxicology and applied pharmacology
|May 24, 2024
概括
一种新的老鼠模型模仿了手脚综合征 (HFS),这是化疗的副作用. 该模型有助于了解HFS的原因,并为癌症患者制定更好的预防和治疗策略.
科学领域:
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
- 毒理学 毒理学 毒理学
背景情况:
- 手脚综合征 (HFS) 是一种常见的,剂量限制的胺抗癌药物的毒性.
- 目前尚不完全了解HFS的确切机制,目前的管理选择有限.
- 开发可靠的动物模型对于研究HFS病原和治疗至关重要.
研究的目的:
- 建立和描述由5 - 甲 (5-FU) 的前药物泰加引起的HFS的小鼠模型.
- 调查诱导HFS的临床,组织病理和行为特征.
- 探索潜在的毒性机制,包括5-FU度和脚部皮肤的亡.
主要方法:
- 雄性斯普拉格-道利大鼠每天接受tegafur (170毫克/公斤) 35天.
- 评估了临床症状,与疼痛相关的行为和运动运动活动.
- 对脚部皮肤进行了基因病理分析,并测量了5-FU度和亡.
主要成果:
- 到第3周,Tegafur引发了机械过敏和运动运动活动的降低.
- 渐进的脚下皮肤病变,包括脱皮和加厚,发展.
- 组织病理学揭示了表皮变化,海绵病和皮肤炎症,反映了人类的HFS.
- 在脚部皮肤中发现了高水平的5-FU和增加的亡.
结论:
- 一种被泰加富尔诱导的老鼠模型成功地复制了人类皮里米丁诱导的HFS的关键特征.
- 这种模型为阐明HFS病原性提供了有价值的工具.
- 结果表明局部的5-FU积累和亡有助于HFS毒性,有助于支持性护理和预防策略.
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