摘要
目的观察雾化吸入顺铂(DDP)、5-氟尿嘧啶(5-FU)、紫杉醇(PTX)化疗药后肺组织的病理学变化及其腱糖蛋白(tenascin-C,TN-C)、基质金属蛋白酶(MMPs)的表达,评估雾化吸入化疗的安全性并探讨肺损伤修复的机制。方法PTX(3 mg/kg)、DDP(5 mg/kg)、5-FU(10 mg/kg)、雾化液通过呼吸机经口气管插管直接注入肺内。苏木精-伊红染色及免疫组化染色了解肺的病理学变化及TN-C表达,明胶酶谱法(gelatin zymography)测定MMP-2、MMP-9的活性。结果吸入DDP、5-FU、PTX可导致气管黏膜上皮增生、管周水肿、肺泡壁增厚、中性粒细胞及淋巴细胞浸润、血管壁增厚、肺泡融合,但未见明显纤维化改变。雾化吸入后早期各组都有TN-C高表达,其中PTX组TN-C高表达持续于损伤修复期。MMP-9表达偏重于雾化吸入后损伤早期,而MMP-2更多表达于后期。结论雾化吸入3 mg/kg以上剂量的PTX可导致较严重的肺损伤;5 mg/kg的顺铂、10 mg/kg的5-FU比较安全;MMP-2与MMP-9可能在肺损伤修复过程中发挥不同的作用。
Objective To study the damage of lung tissue and the mechanism of lung remodeling after aerosol administration of paelitaxel (PTX), cisplatin (DDP) and/or 5 - fluomuracil (5 - FU). Methods The aerosol administration of PTX (3 mg/kg) ,DDP (5 mg/kg) or 5 - FU (2.5 mg/kg and 10 mg/kg), was carried out via tracheal intubation and mechanical aeration. H - E staining and immunohistocbemistry. Conclusion Inhalation of PTX over 3 mg/kg may lead to significant damage of lung tissue, and it seems to be rather safe to inhale DDP and 5 - FU of the current concentrations. MMP - 2 and MMP - 9 may play different roles, earlier and later, in the repairing process of the damaged lung tissue after the aerosolized chemotherapy.
出处
《徐州医学院学报》
CAS
2006年第6期489-492,共4页
Acta Academiae Medicinae Xuzhou
基金
无锡市科技局社会发展计划资助项目(CS050003)
关键词
化学疗法
雾化吸入
肺纤维化
腱糖蛋白
基质金属蛋白酶
chemotherapy
aemsolized inhalation
pulmonary fibrosis
tenascin- C
matrix metallopmteinase