中国药理学通报2018，Vol.34Issue(6)：851-856,6.DOI:10.3969/j.issn.1001-1978.2018.06.022
虎杖苷通过p38 MAPK/Nrf2/HO-1通路减轻小鼠哮喘模型气道炎症
Polydatin attenuates airway inflammation in asthmatic mouse model via p38 MAPK/Nrf2/HO-1 pathway
摘要
Abstract
Aim To investigate whether polydatin re-duces airway inflammation in asthmatic mouse model and explore whether this pathway is related to p38 MAPK/Nrf2/HO-1 . Methods After the establish-ment of the OVA-induced asthmatic mouse model, the animals were injected with 30 mg·kg-1 and 45 mg· kg-1 of polydatin diluted in 0. 2 mL normal saline, while the control group was replaced by normal saline. HE, PAS and Masson staining were used to observe the pathological changes of lung tissue. Diff-Quick staining was used to classify and count the number of inflamma-tory cells in BALF. ELISA was used to detect IgE ex-pressions in BALF. The content of ROS in BALF cells was detected by DHR-123 . The activities of antioxidant enzymes SOD, CAT and MDA in BALF were detected by the enzyme-linked immunosorbent assay kit. The expression of HO-1 in lung tissue was detected by im-munohistochemistry. The protein and mRNA expres-sions of Nrf2 and HO-1 in lung tissue of mice were de-tected by Western blot and RT-PCR. Results Poly-datin treatment significantly reduced inflammatory cell infiltration mucosal secretion, goblet cell proliferation and collagen deposition in the lung tissue of mice, and decreased the number of inflammatory cells and the ex-pression of total IgE and ROS in BALF. It also in-creased the levels of antioxidant enzymes such as SOD and CAT, and lowered the level of MDA. Polydatin re-duced the phosphorylation of p38 MAPK in the lung tissue of mice, enhanced the levels of mRNA and pro-tein expressions of Nrf2 and HO-1 and promoted the nuclear transfer of Nrf2 . The above effects of polydatin were dose-dependent. Conclusions Polydatin exerts anti-oxidative effects in OVA-induced asthmatic mouse model via anti-oxidant pathway. The mechanism may be achieved through the p38 MAPK/Nrf2/HO-1 path-way.关键词
虎杖苷/哮喘/抗氧化/p38MAPK/Nrf2/HO-1Key words
polydatin/asthma/antioxidant/p38 MAPK/Nrf2/HO-1分类
医药卫生引用本文复制引用
赵雨喆,姜京植,叶晶,李燕,李俊峰,延光海,李良昌,朴红梅..虎杖苷通过p38 MAPK/Nrf2/HO-1通路减轻小鼠哮喘模型气道炎症[J].中国药理学通报,2018,34(6):851-856,6.基金项目
国家自然科学基金资助项目( No 81660003,81560679, 81260016) （ No 81660003,81560679, 81260016）
