胶质细胞活化对慢性前列腺炎/慢性盆腔疼痛综合征(CP/CPPS)大鼠脊髓背角P物质的影响

Substance P of cornu dorsale medullae spinalis affected by activation of glia in rats with chronic prostatitis /chronic pelvic pain syndromes

目的探讨胶质细胞活化对慢性前列腺炎/慢性盆腔疼痛综合征(chronic prostatitis/chronic pelvic pain syndromes,CP/CPPS)大鼠脊髓背角P物质的影响。方法完全福氏佐剂和3%角叉菜胶前列腺内注射造成CP/CPPS模型,脊髓插管给药胶质细胞活化抑制剂Propentofylline干扰CP/CPPS模型大鼠,免疫组织化学方法观察正常组、疼痛模型组、药物干扰组脊髓节段(L6和S1)背角的胶质细胞的活化和P物质的定性定位,并用放射免疫的方法观察三组脊髓背角P物质的变化。结果脊髓背角胶质细胞活化阳性细胞数疼痛组明显增加,药物干扰组明显减少;P物质主要表达于脊髓背角且疼痛模型组明显增多,药物干扰组明显减少。结论胶质细胞活化是CP/CPPS大鼠脊髓背角P物质变化的重要原因,胶质细胞活化抑制剂的应用将是治疗CP/CPPS的新亮点。

Objective To explore the relationship between activation of glia and substance P of cornu dorsale medullae spinalis in rats with chronic prostatitis/chronic pelvic pain syndromes （CP/CPPS）. Methods The models of CP/CPPS were induced by injection of complete Freund＇ s adjuvant and 3% carrageenan in prostate. Propentofylline was given with PE-10 in spinal cord of rat models. The activation of glia and substance P in the spinal cord was detected with immunohistochemistry and the change of substance P was observed by radioimmunity. Results Activation of glia was significantly increased in models and significantly reduced in interfered groups, and substance P was significantly increased in models and significantly reduced in the interfered groups. Conclusion The activation of glia in the spinal cord was one important reason of the change in substance P excreted from cornu dorsale medullae spinalis. Inhibitor of glia activation will be a new way to treat CP/CPPS.