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.
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:
PANG Qinglu1,LI Guodong2,CAO Fang3,LIU Haoge1,WEI Wan3,JIAO Yang3
(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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