Mechanism of Yantiao Prescription in Treating Lipopolysaccharide-induced Acute Lung Injury Based on Arachidonic Acid Metabolic Pathways
10.13422/j.cnki.syfjx.20241016
- VernacularTitle:基于花生四烯酸代谢途径探讨炎调方治疗脂多糖所致急性肺损伤的机制
- Author:
Pengcheng LI
1
;
Tianyang CHEN
1
;
Rong FANG
1
;
Anna ZHANG
2
;
Sijia WU
3
;
Wei LIU
4
;
Qian WANG
1
Author Information
1. Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine （TCM）， Shanghai 201203， China
2. College of Pharmaceutical Sciences， Zhejiang Chinese Medical University， Hangzhou 310053， China
3. Institute of Chinese Materia Medica， Shanghai University of TCM， Shanghai 201203， China
4. The NATCM Third Grade Laboratory of TCM Preparations，Key Laboratory of Liver and Kidney Diseases （Ministry of Education）， Shanghai Key Laboratory of Traditional Chinese Clinical Medicine， Shuguang Hospital Affiliated to Shanghai University of TCM， Shanghai 201203， China
- Publication Type:Journal Article
- Keywords:
arachidonic acid;
metabolic pathway;
Yantiao prescription;
acute lung injury;
anti-inflammation
- From:
Chinese Journal of Experimental Traditional Medical Formulae
2025;31(2):101-110
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo clarify the anti-inflammatory and lung-protective effects of Yantiao prescription on lipopolysaccharide （LPS）-induced acute lung injury （ALI）， and to explore the impact of Yantiao prescription on the metabolic pathways of arachidonic acid （AA） in vivo. MethodsThirty male C57BL/6J mice were randomly divided into the following groups based on body weight： normal group， model group， dexamethasone group （2 mg·kg-1）， low-dose Yantiao prescription group （18 g·kg-1）， and high-dose Yantiao prescription group （36 g·kg-1）， with 6 mice in each group. The ALI mouse model was established by intraperitoneal injection of LPS. The treatment groups received oral gavage once a day for 7 consecutive days， and serum and lung tissue were collected at the end of the experiment. The content of pro-inflammatory cytokines tumor necrosis factor-α （TNF-α）， interleukin-1β （IL-1β）， and interleukin-6 （IL-6） in serum was detected by enzyme-linked immunosorbent assay （ELISA）. Hematoxylin-eosin （HE） staining was used to assess lung tissue pathology. The wet/dry weight ratio （W/D） and myeloperoxidase （MPO） activity in lung tissue were measured. The content of AA metabolites in serum and lung tissue was measured by liquid chromatography triple quadrupole-mass spectrometry （LC-MS/MS）. ResultsCompared with the conditions in the normal group， the content of serum pro-inflammatory cytokines TNF-α， IL-1β， and IL-6 in the model group was significantly increased （P<0.01）. The alveolar structure in mice was severely damaged， with markedly thickened alveolar walls and extensive inflammatory cell infiltration. The W/D ratio and MPO activity in lung tissue were significantly increased （P<0.01）. The content of AA metabolites， including prostaglandin D2 （PGD2）， prostaglandin E2 （PGE2）， 11（S）-hydroxy-eicosatetraenoic acid ［11（S）-HETE］， and 5-hydroxy-eicosatetraenoic acid （5-HETE） in serum and lung tissue was significantly increased （P<0.05）， while the content of 11，12-epoxyeicosatrienoic acid （11，12-EET） and 14，15-epoxyeicosatrienoic acid （14，15-EET） in serum was significantly decreased （P<0.01）. Compared with the results in the model group， the content of serum pro-inflammatory cytokines TNF-α， IL-1β， and IL-6 in the dexamethasone group， low-dose Yantiao prescription group， and high-dose Yantiao prescription group was significantly reduced （P<0.05）. Mild thickening of alveolar walls， scattered inflammatory cell infiltration， and relatively intact tissue structure with improved alveolar architecture were observed. The W/D ratio and MPO activity in lung tissue were significantly reduced （P<0.01）. The content of AA metabolites PGD2， PGE2， 11（S）-HETE， and 5-HETE in serum from the dexamethasone group was significantly decreased （P<0.05）， while the content of 14，15-EET in serum significantly increased （P<0.01）， and the content of 5-HETE in lung tissue significantly decreased （P<0.01）. In the low-dose and high-dose Yantiao prescription groups， the content of AA metabolites PGD2， PGE2， 11（S）-HETE， and 5-HETE in serum and lung tissue was significantly decreased （P<0.05）， while the content of 11，12-EET in both serum and lung tissue was significantly increased （P<0.05）. ConclusionYantiao prescription has significant protective effects against LPS-induced ALI， which are related to its regulation of AA metabolic pathways in vivo.
