64 中西医结合学报 2008 年 1 月第 6 卷第 1 期 Journal of Chinese Integ rative M edicine January 2008 V ol 6 N o 1 气腔形成 即 蜂窝肺 部分囊性纤维气腔表面被 覆少量支气管上皮细胞 在纤维化区和蜂窝肺区可 见呼吸性细支气管 肺泡管 重建的囊壁内有增生 的平滑肌束 即肌硬化现象 残存的肺泡区可见代偿 性肺气肿 可见肺大泡形成 造模第 14 天已具备成 纤维细胞灶 伴胶原沉积的瘢痕化 蜂窝等诊断普通 1 2 型间质性肺炎或特发性肺间质纤维化的病变 造模第 28 天 上述病变进一步加重 纤维化区增多 面积扩大 可见大量增生的纤维细胞和胶原纤维沉 积 纤维囊性气腔及炎细胞尤其是嗜酸性粒细胞较 第 14 天明显增多 造模第 45 天 蜂窝肺减轻 纤维 化有所加重 局部可见较多嗜酸性粒细胞浸润 肺泡 腔内有大量巨噬细胞浸润 局部可见陈旧性出血灶 三色染色中胶原纤维染成绿色 纤维化程度的变化 规律与 HE 染色病理一致 见图 1 16 图 1 假手术组肺组织病理学 HE 染色 100 Figure 1 Lung tissue pathology in sham唱operated group HE staining 100 T he structure of lung w as clear T here w ere no inflam mato ry cells in 图 3 模型组 24 h 肺组织病理学 HE 染色 100 Figure 3 Lung tissue pathology in BLM唱treated group at 24 h of experiment HE staining 100 Lo ts of inflam matory cells infiltrated in alveolar septum 图 4 模型组 72 h 肺组织病理学 Masson 染色 100 Figure 4 Lung tissue pathology in BLM唱treated group at 48 h of experiment Masson staining 100 Focal deposit of collagen fibers could be seen alveolar septum and there w ere no inflammato ry ex udates in bron唱 chial lumen and alveolar space 图 5 模型组第 7 天肺组织病理学 HE 染色 100 Figure 5 Lung tissue pathology in BLM唱treated group on 图 2 假手术组肺组织病理学 Masson 染色 100 Figure 2 Lung tissue pathology in sham唱operated group Masson staining 100 No pulmonary fibrosis w as found the 7th day of experiment HE staining 100 T he inflam mation and fibroblast focuses w ere fo rmed
中西医结合学报 2008 年 1 月第 6 卷第 1 期 Journal of Chinese Integ rative M edicine January 2008 V ol 6 N o 1 图 6 模型组第 8 天肺组织病理学 Masson 染色 100 Figure 6 Lung tissue pathology in BLM唱treated group on the 8th day of experiment Masson staining 100 Deposit of collagen fibers could be seen 图 7 模型组第 14 天肺组织病理学 HE 染色 100 Figure 7 Lung tissue pathology in BLM唱treated group on the 14th day of experiment HE staining 100 A g reat quantity of inflam matory cells could be seen in parts of the lung and most of t hem w ere ly mphocy tes and eosinophile g ranulo 唱 cy tes 图 8 模型组第 14 天肺组织病理学 HE 染色 40 Figure 8 Lung tissue pathology in BLM唱treated group on the 14th day of experiment HE staining 40 Inequality of cyst唱like fiber air space could be seen in parts of the lung i e t he formation of honeycomb lung 65 图 9 模型组第 14 天肺组织病理学 HE 染色 100 Figure 9 Lung tissue pathology in BLM唱treated group on the 14th day of experiment HE staining 100 U nequal deposit of collagen fibers in fibrosis area 图 10 模型组第 14 天肺组织病理学 HE 染色 200 Figure 10 Lung tissue pathology in BLM唱treated group on the 14th day of experiment HE staining 200 Small amount of inflam matory cells in fibrosis area and proliferation of ty pe Ⅱ alveolar epit helium could be seen 图 11 模型组第 28 天肺组织病理学 HE 染色 100 Figure 11 Lung tissue pathology in BLM唱treated group on the 28th day of experiment HE staining 100 O bvious agg regation of macrophages in alveoli
66 中西医结合学报 2008 年 1 月第 6 卷第 1 期 Journal of Chinese Integ rative M edicine January 2008 V ol 6 N o 1 图 12 模型组第 28 天肺组织病理学 HE 染色 100 Figure 12 Lung tissue pathology in BLM唱treated group on the 28th day of experiment HE staining 100 Compared wit h lung tissue pathology on the 14th day of ex periment t here w ere more cyst唱like fiber air spaces 图 13 模型组第 14 天肺组织病理学 Masson 染色 100 Figure 13 Lung tissue pathology in BLM唱treated group on the 14th day of experiment Masson staining 100 Obvious fibrosis could be seen in parts of the lung 图 15 模型组第 45 天肺组织病理学 HE 染色 200 Figure 15 Lung tissue pathology in BLM唱treated group on the 45th day of experiment HE staining 200 Less inflam matory cells in fibrosis area and quantity of fibroblasts and collagen fibers could be seen 图 16 模型组第 45 天肺组织病理学 Masson 染色 200 Figure 16 Lung tissue pathology in BLM唱treated group on the 45th day of experiment Masson staining 200 T he fibrosis w as mo re serious t han that on t he 28t h day of the ex per唱 iment 3 讨 论 图 14 模型组第 28 天肺组织病理学 Masson 染色 100 Figure 14 Lung tissue pathology in BLM唱treated group on the 28th day of experiment Masson staining 100 T he pulmonary fibrosis w as more serious t han t hat on t he 14t h day of ex periment BLM 是一种临床上常用的抗肿瘤药物 给药后 广泛分布到各组织 其主要的副作用是肺毒性 引 起肺泡炎并很快进展为肺间质纤维化 1974 年 3 Ademson 等 首先采用腹腔多次注射 BLM 的方 法 建立 了 鼠 肺 间 质 纤 维 化 动 物 模 型 1982 年 4 T hrall 等 证实给大鼠气管内一次性灌注 BLM 可 形成类似于人类弥漫性肺间质纤维化的病变 目前 BLM 诱导的鼠肺间质纤维化模型已成为当今国际 上研究肺间质纤维化普遍采用的实验方法 其病理 特点表现为早期的肺损伤过程和其后的纤维化 本实验在前期工作的基础上对 BLM 1 mg kg 体质量组进行深入探讨 结果显示造模后大鼠体质 量普遍下降 第 3 天时体质量降至最低点 第 7 天时