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Xu F, Jiang Y, Wang X, Shen L, Yan Y, Guo D, Wang C. Sodium aescinate inhibits microglia activation through NF-κB pathway and exerts neuroprotective effect. Front Pharmacol 2023; 14:1086429. [PMID: 36778008 PMCID: PMC9908748 DOI: 10.3389/fphar.2023.1086429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 01/16/2023] [Indexed: 01/27/2023] Open
Abstract
Background: Microglia are resident immune cells of the central nervous system that sense environmental changes and maintain central nervous system homeostasis. Dysfunctional microglia produce toxic mediators that lead to neuronal death. Recent studies suggest that Sodium Aescinate has a neuroprotective effect. However, it is unclear whether Sodium Aescinate exerts neuroprotective effects by inhibiting activation of microglia. Method: Traumatic brain injury and lipopolysaccharide neuroinflammation model were used to evaluate the microglia activation in vivo. BV2 and primary microglia cells were used to assess the microglia activation in vitro. Molecular docking technique was used to predict the binding energy of Sodium Aescinate to NF-κB signaling pathway proteins. Result: Sodium Aescinate inhibited microglial activation in-vivo and in-vitro. Sodium Aescinate inhibited the activation of microglia in Traumatic brain injury and lipopolysaccharide mouse models. Sodium Aescinate also inhibited the expression of inflammatory proteins in BV2 and primary microglia cells. Western blot experiment showed that SA inhibited the activation of NF-κB pathway in BV2 and primary microglia cells. Molecular docking results also showed that Sodium Aescinate had a better affinity with the core protein of the NF-κB pathway. Western blot identified that SA inhibited activation of NF-κB pathway. In Traumatic brain injury model and conditioned medium experiment, Sodium Aescinate pretreatment inhibited inflammation and protected neuron. Conclusion: Our study confirmed that the protection effects of Sodium Aescinate on neurons by inhibiting microglia activation through NF-κB pathway.
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Affiliation(s)
- Fei Xu
- Department of Pharmacy, Suzhou Science and Technology Town Hospital, Suzhou, China,Department of Pharmacy, The People’s Hospital of Suzhou New District, Suzhou, China
| | - Yiguo Jiang
- Department of Pharmacy, Suzhou Science and Technology Town Hospital, Suzhou, China
| | - Xiaoyu Wang
- Department of Pharmacy, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China
| | - Li Shen
- Department of Pharmacy, Suzhou Science and Technology Town Hospital, Suzhou, China
| | - Yan Yan
- Department of Neurology, Suzhou Science and Technology Town Hospital, Suzhou, China
| | - Dongkai Guo
- Department of Pharmacy, Suzhou Science and Technology Town Hospital, Suzhou, China,*Correspondence: Dongkai Guo, ; Cheng Wang,
| | - Cheng Wang
- Department of Pharmacy, Suzhou Science and Technology Town Hospital, Suzhou, China,High-tech Zone social utilities bureau of Suzhou, Suzhou, China,*Correspondence: Dongkai Guo, ; Cheng Wang,
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Huang XJ, Wang DG, Ye LC, Li J, Akhtar M, Saleem S, Shi ZH, Ihsan A. Sodium aescinate and its bioactive components induce degranulation via oxidative stress in RBL-2H3 mast cells. Toxicol Res (Camb) 2020; 9:413-424. [PMID: 32905118 DOI: 10.1093/toxres/tfaa042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/19/2020] [Accepted: 05/30/2020] [Indexed: 12/27/2022] Open
Abstract
Sodium aescinate (SA) is a vital salt of sodium escin from Aesculus wilsonii Rehd seeds. SA injection (SAI) has received great success in treating cerebral edema, venous reflux disease and other inflammatory conditions. Recently, high incidences of immediate hypersensitivity reactions were reported after SA infusion, which raised questions on safety and risk associated with its clinical application. This study was designed to check whether SAI and its four components induce degranulation using RBL-2H3 mast cells. For this purpose, we evaluated different treatment levels of SAI (20, 40, 60, 80 and 100 μg ml-1) and its four characteristic components, SA-A, SA-B, SA-C and SA-D, at 60 μg ml-1 in different tests including cell viability test, β-hexosaminidase and histamine assays, oxidative stress indices, apoptosis analysis and intracellular calcium ions in RBL-2H3 cells. Our results demonstrated that SAI at 80 μg ml-1 and 100 μg ml-1, and its two components (SA-B and SA-D) at 60 μg ml-1 were responsible for disturbing cell morphology and cell viability, elevated levels of β-hexosaminidase, histamine, modulation of oxidative stress indices, induced apoptosis and increase in intracellular calcium ions in RBL-2H3 cells, when compared with the control. Our results demonstrated for the first time that SAI was more likely to induce immediate hypersensitivity reactions attributable to degranulation via oxidative stress caused by SA-B and SA-D components. These results would not only be useful for the safety of end user but also for the industry to improve the quality of SA infusion.
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Affiliation(s)
- Xian-Ju Huang
- College of Pharmacy, South-Central University for Nationalities, Minyuan Road, 708 Wuhan 430074, P.R. China
| | - Da Gui Wang
- College of Pharmacy, South-Central University for Nationalities, Minyuan Road, 708 Wuhan 430074, P.R. China
| | - Li-Chun Ye
- Research Center of Wuhan Aimin Pharmaceutical Co. Ltd., Gedian Economic Development Zone, Ezhou 436070, P.R. China
| | - Jun Li
- College of Pharmacy, South-Central University for Nationalities, Minyuan Road, 708 Wuhan 430074, P.R. China
| | - Muhammad Akhtar
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430074, P.R. China
| | - Shahzad Saleem
- Department of Biosciences, COMSATS University Islamabad, COMSATS road, Sahiwal 57000, Pakistan
| | - Zhao-Hua Shi
- Research Center of Wuhan Aimin Pharmaceutical Co. Ltd., Gedian Economic Development Zone, Ezhou 436070, P.R. China
| | - Awais Ihsan
- College of Pharmacy, South-Central University for Nationalities, Minyuan Road, 708 Wuhan 430074, P.R. China.,Department of Biosciences, COMSATS University Islamabad, COMSATS road, Sahiwal 57000, Pakistan
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Zhang X, Zheng T, Sang L, Apisa L, Zhao H, Fu F, Wang Q, Wang Y, Zheng Q. Otitis media induced by peptidoglycan-polysaccharide (PGPS) in TLR2-deficient (Tlr2(-/-)) mice for developing drug therapy. INFECTION GENETICS AND EVOLUTION 2015; 35:194-203. [PMID: 26296608 DOI: 10.1016/j.meegid.2015.08.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 08/12/2015] [Accepted: 08/17/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND Toll like receptor 2 (TLR2) signaling can regulate the pathogenesis of otitis media (OM). However, the precise role of TLR2 signaling in OM has not been clarified due to the lack of an optimal animal model. Peptidoglycan-polysaccharide (PGPS) of the bacterial cell wall can induce inflammation by activating the TLR2 signaling. This study aimed at examining the pathogenic characteristics of OM induced by PGPS in Tlr2(-/-) mice, and the potential therapeutic effect of sodium aescinate (SA) in this model. METHODS Wild-type (WT) and Tlr2(-/-) mice were inoculated with streptococcal PGPS into their middle ears (MEs) and treated intravenously with vehicle or SA daily beginning at 3days prior to PGPS for 6 consecutive days. The pathologic changes of individual mice were evaluated longitudinally. RESULTS In comparison with WT mice, Tlr2(-/-) mice were susceptible to PGPS-induced OM. Tlr2(-/-) mice displayed greater hearing loss, tympanic membrane damage, ME mucosal thickening, longer inflammation state, cilia and goblet cell loss. SA-treatment decreased neutrophil infiltration, modulated TLR2-related gene expression and improved ciliary organization. CONCLUSIONS PGPS induced a relatively stable OM in Tlr2(-/-) mice, providing a new model for OM research. Treatment with SA mitigated the pathogenic damage in the ME and may be valuable for intervention of OM.
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Affiliation(s)
- Xiaolin Zhang
- Transformative Otology and Neuroscience Center, Binzhou Medical University, Yantai 264003, Shandong, PR China; Department of Otolaryngology-HNS, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Tihua Zheng
- Transformative Otology and Neuroscience Center, Binzhou Medical University, Yantai 264003, Shandong, PR China
| | - Lu Sang
- Transformative Otology and Neuroscience Center, Binzhou Medical University, Yantai 264003, Shandong, PR China
| | - Luke Apisa
- Department of Otolaryngology-HNS, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Hongchun Zhao
- Department of Otolaryngology/Head and Neck Surgery, Institute of Otolaryngology, Affiliated Hospital of Binzhou Medical University, Binzhou 256600, Shandong, PR China
| | - Fenghua Fu
- Department of Pharmacology, School of Pharmacy, Yantai University, Yantai 264003, Shandong, PR China
| | - Qingzhu Wang
- Transformative Otology and Neuroscience Center, Binzhou Medical University, Yantai 264003, Shandong, PR China
| | - Yanfei Wang
- Department of Otolaryngology/Head and Neck Surgery, Institute of Otolaryngology, Affiliated Hospital of Binzhou Medical University, Binzhou 256600, Shandong, PR China.
| | - Qingyin Zheng
- Transformative Otology and Neuroscience Center, Binzhou Medical University, Yantai 264003, Shandong, PR China; Department of Otolaryngology-HNS, Case Western Reserve University, Cleveland, OH 44106, USA.
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