通过ERK/p38激活,CXCR2参与慢性术后疼痛的发生
TianYu Ge1, Xi Chen1, Chang Liu1
1Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, PR China; Medical School of Nantong University, Nantong, Jiangsu 226001, PR China.
Neuroscience letters
|November 5, 2025
概括
慢性术后疼痛 (CPSP) 与CXCR2信号相关,该信号激活脊髓质细胞并促进神经炎症. 抑制CXCR2通过减少炎症因素和逆转质细胞激活,有效地减轻这种疼痛.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 疼痛研究 疼痛研究
背景情况:
- 慢性术后疼痛 (CPSP) 给全球健康和经济带来了重大挑战.
- 了解CPSP的潜在分子机制对于开发有效的治疗方法至关重要.
研究的目的:
- 调查C-X-C基因基因受体2 (CXCR2) 信号传导在CPSP发展中的作用.
- 阐明参与CXCR2介导的神经炎症和疼痛的下游信号通路.
主要方法:
- 使用大鼠皮肤肌肉切割和收缩 (SMIR) 模型来诱导CPSP.
- 在脊柱背角中评估了质细胞激活,炎症因子表达 (TNF-α,IL-1β) 和信号通路激活 (ERK,p38).
- 通过内注射CXCR2抗剂 (SB225002),并使用siRNA在初级微质细胞中静止CXCR2以进行体外验证.
主要成果:
- SMIR模型诱导了质细胞激活和炎症因子CXCR2,p-ERK和p-p38在脊柱背角中的表达增加.
- 治疗CXCR2抗剂增加了疼痛值,减少了炎症和质激活.
- 在体外,CXCR2抑制降低了微质细胞中的p-ERK,p-p38,TNF-α和IL-1β水平.
结论:
- 通过ERK/p38通路激活脊髓质细胞的CXCR2驱动神经炎症和CPSP.
- 抑制CXCR2代表了一种有前途的治疗策略,用于缓解慢性术后疼痛.
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