针对癌症引起的骨疼痛的新疗法
Rayan Haroun1, Samuel J Gossage1, Federico Iseppon1
1Molecular Nociception Group, Wolfson Institute for Biomedical Research (WIBR), University College London (UCL), London WC1E 6BT, United Kingdom.
Neurobiology of pain (Cambridge, Mass.)
|October 14, 2024
概括
针对神经生长因子 (NGF) 和瘤坏死因子 (TNF) 等炎症媒介,在临床前模型中有效降低了癌症诱导的骨疼痛 (CIBP). 对NGF和TNF的双重抑制显示出对CIBP治疗具有优越的止痛作用.
科学领域:
- 在瘤学瘤学.
- 疼痛管理 疼痛管理
- 神经科学是一个神经科学.
背景情况:
- 癌症疼痛,特别是转移导致的骨头疼痛,影响了大多数晚期癌症患者.
- 癌症生存率的增加加剧了慢性癌症疼痛日益严重的问题.
- 癌症引起的骨疼痛 (CIBP) 的现有治疗方法存在局限性,需要新的治疗策略.
研究的目的:
- 优化一种临床前的*in vivo*模型,用于研究癌症引起的骨疼痛 (CIBP).
- 评估CIBP新型止痛标的疗效.
- 评估单个离子通道点,肉化合物介导的神经元沉默,以及炎症介导体 (NGF和TNF) 双重抑制.
主要方法:
- 通过将易斯肺癌细胞注射到小鼠大腿骨中,开发和优化了一个CIBP模型.
- 评估了针对电压导入通道 (NaV1.7,NaV1.8),酸感应离子通道,μ-阿片类受体表达神经元和炎症媒介 (NGF,TNF) 的止痛作用.
- 使用淘汰赛小鼠模型 (全球NaV1.8,条件NaV1.7) 和修饰的肉化合物进行治疗评估.
主要成果:
- 在CIBP模型中,准NaV1.7和NaV1.8通道或使用修饰的肉化合物并没有产生显著的止痛效果.
- 抑制神经生长因子 (NGF) 和/或瘤亡因子 (TNF) 显著降低了与CIBP相关的负重变化.
- 双重抑制NGF和TNF表现出优越的疗效,防止二次皮肤热过敏症和延长四肢使用时间.
结论:
- 在这个模型中,针对单个离子通道或使用肉化合物对治疗CIBP是无效的.
- 抑制炎症媒介NGF和TNF对CIBP管理有希望.
- 组合疗法,特别是NGF和TNF的双抑制,为治疗癌症诱导的骨疼痛提供了优越的策略.
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