1.北京中医药大学,北京市朝阳区北三环东路11号,100029
2.北京昌平中西医结合医院
3.北京中医药大学东方医院
yangjiao2013@sina.cn
收稿:2022-02-24,
修回:2022-03-19,
纸质出版:2022-11-02
移动端阅览
庞庆禄,李国栋,曹芳等.肺痹汤2号对肺纤维化模型小鼠肺组织ROS/Hippo/YAP信号通路的影响[J].中医杂志,2022,63(21):2081-2087.
PANG Qinglu,LI Guodong,CAO Fang,et al.PANG Qinglu1,LI Guodong2,CAO Fang3,LIU Haoge1,WEI Wan3,JIAO Yang3[J].Journal of Traditional Chinese Medicine,2022,63(21):2081-2087. DOI: 10.13288/j.11-2166/r.2022.21.014.
庞庆禄,李国栋,曹芳等.肺痹汤2号对肺纤维化模型小鼠肺组织ROS/Hippo/YAP信号通路的影响[J].中医杂志,2022,63(21):2081-2087. DOI: 10.13288/j.11-2166/r.2022.21.014.
PANG Qinglu,LI Guodong,CAO Fang,et al.PANG Qinglu1,LI Guodong2,CAO Fang3,LIU Haoge1,WEI Wan3,JIAO Yang3[J].Journal of Traditional Chinese Medicine,2022,63(21):2081-2087. DOI: 10.13288/j.11-2166/r.2022.21.014. DOI:
目的
2
探讨肺痹汤2号治疗特发性肺纤维化的可能分子机制。
方法
2
将40只雄性C57BL/6小鼠随机分为空白组、模型组、肺痹汤2号组和吡非尼酮组,每组10只。除空白组外,其余各组小鼠采用气管滴注博来霉素建立肺纤维化动物模型。造模第2天开始,吡非尼酮组予以吡非尼酮270.3 mg/(kg·d)灌胃,肺痹汤2号组予以肺痹汤2号21.02 g/(kg·d)灌胃,空白组和模型组予10 ml/kg生理盐水灌胃,各组均每日灌胃1次,共14天。各组小鼠肺组织采用HE染色以及Masson染色评估肺组织炎症损伤和纤维化程度,免疫组化观察肺组织Ⅰ型胶原(ColⅠ)表达,化学发光法检测肺组织活性氧(ROS)水平,检测肺组织氧化应激相关指标[包括丙二醛(MDA)、总抗氧化能力(T-AOC)、超氧化物歧化酶(SOD)]水平,Western blot法检测肺组织大肿瘤抑制基因1蛋白(LATS1)、磷酸化大肿瘤抑制基因1蛋白(p-LATS1)、Yes相关蛋白(YAP)、磷酸化Yes相关蛋白(p-YAP)水平。
结果
2
HE染色、Masson染色、免疫组化结果显示,空白组小鼠肺组织结构正常,胶原沉积不明显;模型组小鼠肺组织可见肺泡腔塌陷甚至闭合,有明显的炎症细胞浸润和大量ColⅠ沉积。与模型组相比,肺痹汤2号组和吡非尼酮组小鼠肺组织结构明显改善,炎症及胶原沉积明显减轻,ColⅠ水平亦降低。与空白组比较,模型组、肺痹汤2号组和吡非尼酮组血清MDA、ROS以及YAP水平显著升高(
P
<0.05),T-AOC、SOD、LATS1、p-LATS1以及p-YAP水平显著降低(
P
<0.05);与模型组相比,肺痹汤2号组和吡非尼酮组MDA、ROS以及YAP水平显著降低(
P
<0.05),T-AOC、SOD活性、LATS1、p-LATS1以及p-YAP水平显著升高(
P
<0.05)。
结论
2
肺痹汤2号可能通过调控肺组织ROS/Hippo/YAP信号通路来改善特发性肺纤维化。
Objective
2
To explore the possible molecular mechanism of
Feibi Decoction No.2
(肺痹汤2号, FD-2) in the treatment of idiopathic pulmonary fibrosis (IPF).
Methods
2
Forty mice were randomly divided into blank group, model group, FD-2 group and pirfenidone group, with 10 mice in each group. The model of pulmonary fibrosis was established by intratracheal instillation of bleomycin in all groups except the blank group. Since the second day of modeling, 270.3 mg/(kg·d) of pirfenidone and 21.02 g/(kg·d) of FD-2 were given by gavage to the corresponding groups, while 10 ml/kg of normal saline by gavage was given to the blank group and the model group, once a day for 14 days. HE and Masson staining were used to evaluate the degree of inflammatory injury and fibrosis in lung tissue. The expression level of collagen I (ColⅠ) in lung tissue was observed by immunohistochemistry. The level of reactive oxygen species (ROS) was detected by chemiluminescence method, and the levels of oxidative stress-related indicators including malondialdehyde (MDA), total antioxidant capacity (T-AOC) and superoxide dismutase (SOD) were assessed. Large tumor suppressor gene 1 (LATS1), phosphorylated LATS1 (p-LATS1), Yes-related protein (YAP) and phosphorylated YAP (p-YAP) levels were detected by western blot.
Results
2
The results of HE staining, Masson staining and immunohistochemistry showed that the lung tissue structure was normal, and the collagen deposition was not obvious of the mice in the blank group, while there were alveolar collapse or even closure in the lung tissues, with obvious inflammatory cell infiltration and ColⅠ deposition of the mice in the model group. Compared to those in the model group, the lung tissue structures, inflammation and collagen deposition were significantly improved, and the ColⅠ level decreased in the FD-2 group and pirfenidone group. Compared to those in the blank group, the levels of serum MDA, ROS and YAP in the model group, pirfenidone group and FD-2 group increased significantly, and the levels of T-AOC, SOD activity, LATS1, p-LATS1 and p-YAP decreased significantly (
P
<0.05). Compared to those in the model group, the levels of MDA, ROS and YAP in pirfenidone and FD-2 group decreased significantly, and the levels of T-AOC, SOD activity, LATS1, p-LATS1 and p-YAP increased significantly (
P
<0.05).
Conclusion
2
FD-2 may improve IPF by regulating ROS/Hippo/YAP signaling pathway.
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