PMID- 31707400 OWN - NLM STAT- MEDLINE DCOM- 20200323 LR - 20200323 IS - 1643-3750 (Electronic) IS - 1234-1010 (Print) IS - 1234-1010 (Linking) VI - 25 DP - 2019 Nov 10 TI - Alisol B 23-Acetate Ameliorates Lipopolysaccharide-Induced Cardiac Dysfunction by Suppressing Toll-Like Receptor 4 (TLR4)/NADPH Oxidase 2 (NOX2) Signaling Pathway. PG - 8472-8481 LID - 10.12659/MSM.918252 [doi] AB - BACKGROUND Cardiac dysfunction during endotoxemia is a major cause of cardiovascular disease with high morbidity and mortality. Alisol B 23-acetate (AB23A) is a triterpenoid extracted from the Rhizoma Alismatis, a kind of traditional Chinese medicine, exhibits anti-inflammatory activity on endotoxemia. This investigation aimed to uncover the protective e ff ects of AB23A against sepsis-induced cardiac dysfunction. MATERIAL AND METHODS Adult male C57BL/6 mice received lipopolysaccharide (LPS) (20 mg/kg intravenous) stimulation, with or without pre-treatment of AB23A (10 mg/kg, 20 mg/kg, or 40 mg/kg). Histopathological staining and cardiac function were performed 4 hours after LPS stimulation. Then the levels of interleukin (IL)-6, IL-1ss, and tumor necrosis factor (TNF)-alpha were monitored with enzyme-linked immunosorbent assay (ELISA). In addition, H9C2 cells were treated with LPS (5 mug/mL) with or without pre-treated with AB23A (0.1 muM, 1 muM, or 10 muM), and the production of reactive oxygen species (ROS) was detected by DCFH-DA combined with flow cytometry. The expression of Toll-like receptor 4 (TLR4), NADPH oxidase 2 (NOX2), NOX4, P38, p-P38, extracellular-signal-regulated kinase (ERK), and p-ERK were assessed by western blotting. RESULTS AB23A improved the survival rate and ameliorated myocardial injury, decreased inflammatory infiltration and the level of IL-6, IL-1ss, and TNF-alpha in the LPS-stimulated mouse model. Moreover, AB23A inhibited the ROS production in LPS-treated H9C2 cells. In addition, AB23A suppressed the levels of TLR4 and NOX2 as well as the activation levels of P38 and ERK both in vivo and in vitro. CONCLUSIONS AB23A reduced LPS-induced myocardial dysfunction by inhibiting inflammation and ROS production through the TLR4/NOX2 pathway. FAU - Wang, BinYan AU - Wang B AD - College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China (mainland). FAU - Chen, Liang AU - Chen L AD - Laboratory Animal Research Center, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China (mainland). FAU - Dai, LingHao AU - Dai L AD - Academy of Traditional Chinese Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China (mainland). FAU - Fang, WenMing AU - Fang W AD - College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China (mainland). FAU - Wang, Hui AU - Wang H AD - College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China (mainland). LA - eng PT - Journal Article DEP - 20191110 PL - United States TA - Med Sci Monit JT - Medical science monitor : international medical journal of experimental and clinical research JID - 9609063 RN - 0 (Cholestenones) RN - 0 (Drugs, Chinese Herbal) RN - 0 (Interleukin-6) RN - 0 (Lipopolysaccharides) RN - 0 (Reactive Oxygen Species) RN - 0 (Tlr4 protein, mouse) RN - 0 (Toll-Like Receptor 4) RN - 0 (Triterpenes) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (alisol B 23-acetate) RN - 0 (triterpenoid TP-222) RN - EC 1.6.3.- (NADPH Oxidase 2) RN - EC 1.6.3.- (NADPH Oxidases) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) SB - IM MH - Animals MH - China MH - Cholestenones/*pharmacology MH - Drugs, Chinese Herbal/pharmacology MH - Endotoxemia/*drug therapy MH - Heart Diseases/chemically induced/*drug therapy/physiopathology MH - Inflammation MH - Interleukin-6/metabolism MH - Lipopolysaccharides/pharmacology MH - Male MH - Medicine, Chinese Traditional/methods MH - Mice MH - Mice, Inbred C57BL MH - Mitogen-Activated Protein Kinases/metabolism MH - NADPH Oxidase 2/metabolism MH - NADPH Oxidases/metabolism MH - Phosphorylation MH - Reactive Oxygen Species/metabolism MH - Sepsis MH - Signal Transduction/drug effects MH - Toll-Like Receptor 4/metabolism MH - Triterpenes/pharmacology MH - Tumor Necrosis Factor-alpha/metabolism MH - p38 Mitogen-Activated Protein Kinases/metabolism PMC - PMC6863037 EDAT- 2019/11/11 06:00 MHDA- 2020/03/24 06:00 PMCR- 2019/11/10 CRDT- 2019/11/11 06:00 PHST- 2019/11/11 06:00 [entrez] PHST- 2019/11/11 06:00 [pubmed] PHST- 2020/03/24 06:00 [medline] PHST- 2019/11/10 00:00 [pmc-release] AID - 918252 [pii] AID - 10.12659/MSM.918252 [doi] PST - epublish SO - Med Sci Monit. 2019 Nov 10;25:8472-8481. doi: 10.12659/MSM.918252.