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Wen F, Zhuge W, Wang J, Lu X, You R, Liu L, Zhuge Q, Ding S. Oridonin prevents insulin resistance-mediated cognitive disorder through PTEN/Akt pathway and autophagy in minimal hepatic encephalopathy. J Cell Mol Med 2019; 24:61-78. [PMID: 31568638 PMCID: PMC6933371 DOI: 10.1111/jcmm.14546] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 05/21/2019] [Accepted: 06/11/2019] [Indexed: 12/13/2022] Open
Abstract
Minimal hepatic encephalopathy (MHE) was characterized for cognitive dysfunction. Insulin resistance (IR) has been identified to be correlated with the pathogenesis of MHE. Oridonin (Ori) is an active terpenoid, which has been reported to rescue synaptic loss and restore insulin sensitivity. In this study, we found that intraperitoneal injection of Ori rescued IR, reduced the autophagosome formation and synaptic loss and improved cognitive dysfunction in MHE rats. Moreover, in insulin‐resistant PC12 cells and N2a cells, we found that Ori blocked IR‐induced synaptic deficits via the down‐regulation of PTEN, the phosphorylation of Akt and the inhibition of autophagy. Taken together, these results suggested that Ori displays therapeutic efficacy towards memory deficits via improvement of IR in MHE and represents a novel bioactive therapeutic agent for treating MHE.
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Affiliation(s)
- Fangfang Wen
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disease Research, Department of Surgery Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Weishan Zhuge
- Gastrointestinal Surgery, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jian Wang
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disease Research, Department of Surgery Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaoai Lu
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disease Research, Department of Surgery Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ruimin You
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disease Research, Department of Surgery Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Leping Liu
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disease Research, Department of Surgery Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qichuan Zhuge
- Neurosurgery Department, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Saidan Ding
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disease Research, Department of Surgery Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Kan X, Liu B, Guo W, Wei L, Lin Y, Guo Y, Gong Q, Li Y, Xu D, Cao Y, Huang B, Dong A, Ma H, Fu S, Liu J. Myricetin relieves LPS-induced mastitis by inhibiting inflammatory response and repairing the blood-milk barrier. J Cell Physiol 2019; 234:16252-16262. [PMID: 30746687 DOI: 10.1002/jcp.28288] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 01/18/2019] [Accepted: 01/22/2019] [Indexed: 01/24/2023]
Abstract
Mastitis, an inflammation of mammary gland, is a serious disease that affects the health of dairy cows around the world. Myricetin, a flavonoid from Bayberry, has been reported to suppress various inflammatory response. The aim of this study was to evaluate the effect of myricetin on lipopolysaccharide (LPS)-induced in vivo and in vitro mastitis model and clarify the underlying mechanism. In vivo experiments, myricetin attenuated the severity of inflammatory lesion and neutrophil infiltration. Moreover, myricetin pretreatment induced a significant decrease in the activity of myeloperoxidase (MPO) and the production of TNF-α, IL-6, and IL-1β triggered by LPS. Myricetin pretreatment could also increase the integrity of the blood-milk barrier and upregulate the tight junction proteins in LPS-induced mice mastitis. In vitro, myricetin inhibited LPS-induced inflammatory response in mice mammary epithelial cells (mMECs). In the further mechanism studies, we found that the anti-inflammatory effect of myricetin was mediated by inhibiting LPS-induced phosphorylation of AKT, IKK-α, IκB-α, and P65 in vivo and in vitro. Collectively, these data suggested that myricetin effectively ameliorated the inflammatory response by inhibiting the AKT/IKK/NF-κB signaling pathway and repairing the integrity of blood-milk barrier in LPS-induced mice mastitis.
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Affiliation(s)
- Xingchi Kan
- Department of Theoretic Veterinary Medicine, Laboratory of Neuroendocrine Regulation, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Bingrun Liu
- Division of Biology and Chemistry, Laboratory of Biomolecular Research, Paul Scherrer Institute, Villigen PSI, Switzerland
| | - Wenjin Guo
- Department of Theoretic Veterinary Medicine, Laboratory of Neuroendocrine Regulation, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Libin Wei
- Development Planning Section, Science and Technology Bureau, Taicang, Suzhou, Jiangsu, China
| | - Yuanqing Lin
- Department of Disease Testing, Animal Disease Prevention and Control Center, Xining, Qinghai, China
| | - Yingcheng Guo
- Department of Disease Testing, Animal Epidemic Prevention and Control Center, Fengman distric, Jilin municipality, Jilin province, China
| | - Qian Gong
- Department of Theoretic Veterinary Medicine, Laboratory of Neuroendocrine Regulation, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Yanwei Li
- Department of Theoretic Veterinary Medicine, Laboratory of Neuroendocrine Regulation, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Dianwen Xu
- Department of Theoretic Veterinary Medicine, Laboratory of Neuroendocrine Regulation, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Yu Cao
- Department of Theoretic Veterinary Medicine, Laboratory of Neuroendocrine Regulation, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Bingxu Huang
- Department of Theoretic Veterinary Medicine, Laboratory of Neuroendocrine Regulation, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Aiwen Dong
- Department of Theoretic Veterinary Medicine, Laboratory of Neuroendocrine Regulation, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - He Ma
- Department of Theoretic Veterinary Medicine, Laboratory of Neuroendocrine Regulation, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Shoupeng Fu
- Department of Theoretic Veterinary Medicine, Laboratory of Neuroendocrine Regulation, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
| | - Juxiong Liu
- Department of Theoretic Veterinary Medicine, Laboratory of Neuroendocrine Regulation, College of Veterinary Medicine, Jilin University, Changchun, Jilin, China
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Zhang J, Zhou Y, Sun Y, Yan H, Han W, Wang X, Wang K, Wei B, Xu X. Beneficial effects of Oridonin on myocardial ischemia/reperfusion injury: Insight gained by metabolomic approaches. Eur J Pharmacol 2019; 861:172587. [PMID: 31377155 DOI: 10.1016/j.ejphar.2019.172587] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/22/2019] [Accepted: 08/01/2019] [Indexed: 11/17/2022]
Abstract
Oridonin is a diterpenoid isolated from Rabdosia rubescens (Hemsl.) Hara, a well-known herbal tea in China with many health benefits. To provide a better understanding of the potential cardioprotective effect of Oridonin, we investigated the metabolic alterations in heart tissue and serum of rat subjected to myocardial ischemia/reperfusion (MI/R) injury with or without pretreatment of Oridonin by UPLC-MS/MS metabolomics approach. Rats were randomly divided into groups as follows: Control, Sham, MI/R and pretreated with Oridonin (10 mg/kg)+MI/R. After 24 h of reperfusion, heart tissue and serum were collected for biochemical and metabolomic analysis. Pretreatment with Oridonin significantly decreased infarct size and reversed the abnormal elevated myocardial zymogram in serum. Moreover, Oridonin regulated several metabolic pathways, including glycolysis, branched chain amino acid, kynurenine, arginine, glutamine and bile acid metabolism. Our results suggest that Oridonin indeed displays outstanding cardioprotective effect mainly by regulating energy and amino acid metabolism.
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Affiliation(s)
- Junhong Zhang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, o-innovation Center of Henan Province for New Drug R & D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
| | - Yuanyuan Zhou
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, o-innovation Center of Henan Province for New Drug R & D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
| | - Yaxin Sun
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, o-innovation Center of Henan Province for New Drug R & D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
| | - Hao Yan
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, o-innovation Center of Henan Province for New Drug R & D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
| | - Wenchao Han
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, o-innovation Center of Henan Province for New Drug R & D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
| | - Xinying Wang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, o-innovation Center of Henan Province for New Drug R & D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
| | - Kaili Wang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, o-innovation Center of Henan Province for New Drug R & D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, PR China
| | - Bo Wei
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, o-innovation Center of Henan Province for New Drug R & D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, PR China.
| | - Xia Xu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, o-innovation Center of Henan Province for New Drug R & D and Preclinical Safety, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, PR China.
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Glycitin alleviates lipopolysaccharide-induced acute lung injury via inhibiting NF-κB and MAPKs pathway activation in mice. Int Immunopharmacol 2019; 75:105749. [PMID: 31306981 DOI: 10.1016/j.intimp.2019.105749] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 07/02/2019] [Accepted: 07/08/2019] [Indexed: 02/06/2023]
Abstract
Acute lung injury (ALI) is a pulmonary diffuse dysfunction disease caused by immoderate inflammatory response breaking the coordination of physiological structures and functions, and there are very few effective treatments to reduce high morbidity of ALI in critical patients. Glycitin is a natural ingredient derived from the seeds of leguminous plants and may have potent anti-inflammation features. The purpose of this study was to investigate the anti-inflammation effect of glycitin on LPS-induced ALI in mice and elucidate its possible anti-inflammatory mechanisms. The results of histopathological changes, the wet/dry weight ratio as well as the myeloperoxidase (MPO) activity indicated that glycitin obviously alleviated the lung injury induced by LPS. In addition, qPCR and ELISA results found that glycitin could dose-dependently decrease the expressions of pro-inflammatory cytokines IL-1β, IL-6, and TNF-α. Western blotting was performed to revealed that glycitin inhibited the activation of NF-κB and MAPKs signaling pathways by suppressing the expression of TLR4 protein and the phosphorylation of IKKβ, IκBα, p65, p38, ERK, and JNK. All data indicated that glycitin could protect lung tissues from LPS-induced inflammation via inhibiting TLR4-mediated NF-κB and MAPKs signaling pathways.
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55
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Huang F, Sheng XX, Zhang HJ. DUSP26 regulates podocyte oxidative stress and fibrosis in a mouse model with diabetic nephropathy through the mediation of ROS. Biochem Biophys Res Commun 2019; 515:410-416. [PMID: 31155289 DOI: 10.1016/j.bbrc.2019.05.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 05/03/2019] [Indexed: 01/02/2023]
Abstract
Diabetic nephropathy (DN) is a leading cause of renal failure worldwide. Unfortunately, the pathogenetic mechanism of DN is far from to be understood. Dual-specificity phosphatase 26 (DUSP26) is a member of the Dusp protein family, and is suggested to be involved in divers biological and pathological processes, such as cell growth, differentiation, inflammation and apoptosis. However, its role in the development of DN is still vague. In this study, we found that DUSP26 expression was increased in kidney of DN patients. Then, the wild type (DUSP26+/+) and gene knockout (DUSP26-/-) mice were used to further explore the effects of DUSP26 on DN development induced by streptozotocin (STZ). DUSP26 deficiency accelerated renal injury and dysfunction, as evidenced by the elevated glomerulosclerosis, reduced expression of Nephrin and promoted glomerular basement membrane thickness. In addition, STZ treatment resulted in reactive oxygen species (ROS) accumulation, H2O2 overproduction and superoxide dismutase (SOD) reduction in renal cortex or glomeruli of mice. The ROS production caused the activation of mitogen-activated protein kinase (MAPKs) signaling in kidney glomeruli of STZ-induced mice. These in vivo pathological processes were further confirmed in the differentiated podocytes stimulated by glucose (GLU). Intriguingly, we found that STZ-induced DN as mentioned above was further accelerated by DUSP26-/- in mice following STZ injection. Moreover, STZ-induced fibrosis in kidney glomeruli of DN mice was markedly prolonged in DUSP26-knockout mice through potentiating transforming growth factor-β1 (TGF-β1) expression. More importantly, reducing ROS generation could significantly abolish DUSP26 knockdown-exacerbated TGF-β1 expression and MAPKs activation, thereby protecting podocytes from GLU-induced podocyte injury. Thus, DUSP26-regulated DN development was largely dependent on ROS generation. Taken together, we concluded that DUSP26 might be a promising therapeutic target for developing effective treatments against DN progression.
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Affiliation(s)
- Feng Huang
- Department of Nephrology, Linyi City People Hospital, Linyi, Shandong, 276003, China
| | - Xu-Xiang Sheng
- Department of Nephrology, Linyi City People Hospital, Linyi, Shandong, 276003, China
| | - Hong-Juan Zhang
- Department of Nephrology, Linyi City People Hospital, Linyi, Shandong, 276003, China.
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Wang Y, Zhang X, Tian J, Liu G, Li X, Shen D. Sevoflurane alleviates LPS‑induced acute lung injury via the microRNA‑27a‑3p/TLR4/MyD88/NF‑κB signaling pathway. Int J Mol Med 2019; 44:479-490. [PMID: 31173183 PMCID: PMC6605322 DOI: 10.3892/ijmm.2019.4217] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 05/24/2019] [Indexed: 02/07/2023] Open
Abstract
Acute lung injury (ALI) is a critical syndrome that is associated with a high morbidity and mortality in patients. Sevoflurane has a lung protective effect in ALI as it reportedly has anti‑inflammatory and apoptotic‑regulating activity. However, the mechanism is still not entirely understood. The aim of the present study was to explore the effects of sevoflurane on lipopolysaccharide (LPS)‑induced ALI in mice and the possible mechanisms involved. The results revealed that sevoflurane treatment improved LPS‑induced lung injury, as evidenced by the reduction in mortality, lung permeability, lung wet/dry ratio and lung histopathological changes in mice. Total cell counts and the production of pro‑inflammatory cytokines [tumor necrosis factor‑α, interleukin (IL)‑1β and IL‑6] in bronchoalveolar fluid were also decreased following treatment with sevoflurane. Additionally, LPS‑triggered apoptosis in lung tissues, which was eliminated by sevoflurane. Furthermore, a miRCURY™ LNA array was employed to screen for differentially expressed microRNAs (miRs/miRNAs). Among these miRNAs, 6 were differentially expressed and were involved in the inflammatory response, but only miR‑27a‑3p (miR‑27a) was regulated by sevoflurane. Subsequently, the present study investigated whether sevoflurane exerts its function through the modulation of miR‑27a. The results demonstrated that the overexpression of miR‑27a via an injection with agomiR‑27a produced similar protections as sevoflurane, while the inhibition of miR‑27a suppressed the lung protective effects of sevoflurane in ALI mice. In addition, the present study identified that miR‑27a inhibited Toll‑like receptor 4 (TLR4) by binding to its 3'‑untranslated region. Western blot analysis demonstrated that sevoflurane may ameliorate the inflammatory response by blocking the miR‑27a/TLR4/MyD88/NF‑κB signaling pathway. The present results indicate that sevoflurane may be a viable therapeutic option in the treatment of patients with ALI.
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Affiliation(s)
- Yunfei Wang
- Department of Anesthesiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Xiaoran Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Jianmin Tian
- Department of Anesthesiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Guoze Liu
- Department of Anesthesiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Xiaofang Li
- Department of Anesthesiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
| | - Dan Shen
- Department of Anesthesiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, P.R. China
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Ma W, Li C, Zhao L, Wang Y, Xiao R. NF-κB-mediated inflammatory damage is differentially affected in SH-SY5Y and C6 cells treated with 27-hydroxycholesterol. Food Sci Nutr 2019; 7:1685-1694. [PMID: 31139381 PMCID: PMC6526694 DOI: 10.1002/fsn3.1005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 03/03/2019] [Accepted: 03/07/2019] [Indexed: 12/12/2022] Open
Abstract
Previous studies have demonstrated that 27-hydroxycholesterol (27-OHC), a cholesterol metabolite, was involved in the inflammatory process of Alzheimer's disease (AD). The present study aimed to investigate the 27-OHC-induced inflammatory damage to neurons and astrocytes and the underlying mechanism(s) accounting for this damage. Human neuroblastoma cells (SH-SY5Y cells) and rat glioma cells (C6 cells) were treated with vehicle or 27-OHC (5, 10, or 20 μM) for 24 hr. The levels of secreted interleukin-1β (IL-1β), interleukin-10 (IL-10), tumor necrosis factor alpha (TNF-α), and inducible nitric oxide synthase (iNOS) were determined by using an enzyme-linked immunosorbent assay (ELISA). Immunofluorescence staining was used to determine the cellular expression of toll-like receptor 4 (TLR4) and transforming growth factor-β (TGF-β). The mRNA and protein expression levels of nuclear factor-κB p65 (NF-κB p65), nuclear factor-κB p50 (NF-κB p50) and cyclooxygenase-2 (COX-2) in both SH-SY5Y and C6 cells were also detected by real-time PCR and Western blot, respectively. The results of this study showed that 27-OHC treatment increased secretion of TNF-α and iNOS and decreased secretion of IL-10, upregulated expression of TGF-β, NF-κB p65 and p50, and downregulated expression of COX-2 in SH-SY5Y cells. In C6 cells, treatment with 27-OHC resulted in decreased secretion of IL-1β, IL-10, TNF-α, and iNOS, and increased expression of TLR4 and TGF-β. These results suggest that 27-OHC may cause inflammatory damage to neurons by activating the TGF-β/NF-κB signaling pathway and to astrocytes by activating the TLR4/TGF-β signaling, which results in the subsequent release of inflammatory cytokines.
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Affiliation(s)
- Wei‐Wei Ma
- Beijing Key Laboratory of Environmental Toxicology, School of Public HealthCapital Medical UniversityBeijingChina
| | - Chao‐Qun Li
- Beijing Key Laboratory of Environmental Toxicology, School of Public HealthCapital Medical UniversityBeijingChina
| | - Lei Zhao
- Department of Molecular Physiology and Biophysics, Holden Comprehensive Cancer CenterUniversity of Iowa Carver College of MedicineIowa CityIowa
| | - Yu‐Shan Wang
- Beijing Key Laboratory of Environmental Toxicology, School of Public HealthCapital Medical UniversityBeijingChina
| | - Rong Xiao
- Beijing Key Laboratory of Environmental Toxicology, School of Public HealthCapital Medical UniversityBeijingChina
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Zhang Y, Li J, Rong Q, Xu Z, Ding Y, Cao Q, Ji X, Zhao H, Wu Y, Li B. The regulatory role of C1q on Helicobacter pylori-induced inflammatory cytokines secretion in THP-1 cells. Microb Pathog 2019; 131:234-238. [PMID: 30986450 DOI: 10.1016/j.micpath.2019.04.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 04/10/2019] [Accepted: 04/10/2019] [Indexed: 01/08/2023]
Abstract
C1q, as a LAIR-1 ligand, maintains monocytes quiescence and possess immunosuppressive properties. To understand the roles and molecular mechanisms, C1q mediated inflammation cytokines and several pivotal proteins in THP-1 cells after H. pylori infection were detected. The results showed that the expression of IL-8, IL-10, LAIR-1, phosphorylated/total JNK, phosphorylated/total p38-MAPK, phosphorylated/total AKT and phosphorylated/total NF-κB were up-regulated significantly in THP-1 cells after H. pylori infection. There was significant upregulation in IL-10 concentration, phosphorylated/total p38-MAPK and phosphorylated/total AKT, and downregulation in phosphorylated/total JNK in non-H. pylori infected THP-1 cells pretreated with C1q. C1q was also able to increase IL-8 and IL-10 production, and reduce LAIR-1 and phosphorylated/total p38-MAPK expression in pretreatment-C1q THP-1 cells after H. pylori infection. These results together indicated that H. pylori might induce IL-8 and IL-10 production through JNK, p38-MAPK, PI3K/AKT and NF-κB signaling pathway. C1q manipulate LAIR-1 to regulation IL-8 and IL-10 secretion in THP-1 cells after H. pylori infection through the p38-MAPK signaling pathway. This information is helpful to further understand the role and mechanisms of C1q on inflammation cytokines secretion in monocytes after H. pylori infection.
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Affiliation(s)
- Ying Zhang
- School of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Jiaojiao Li
- School of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, China; Binzhou People's Hospital, Binzhou, 256600, China
| | - Qianyu Rong
- School of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Zheng Xu
- School of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Yunfei Ding
- School of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Qizhi Cao
- School of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Xiaofei Ji
- School of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Huilin Zhao
- School of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Yulong Wu
- School of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Boqing Li
- School of Basic Medical Sciences, Binzhou Medical University, Yantai, 264003, China.
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59
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Xu L, Li L, Zhang CY, Schluesener H, Zhang ZY. Natural Diterpenoid Oridonin Ameliorates Experimental Autoimmune Neuritis by Promoting Anti-inflammatory Macrophages Through Blocking Notch Pathway. Front Neurosci 2019; 13:272. [PMID: 31001070 PMCID: PMC6454011 DOI: 10.3389/fnins.2019.00272] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 03/07/2019] [Indexed: 12/13/2022] Open
Abstract
The diterpenoid compound, Oridonin, extracted from the Chinese herb, Rabdosia rubescens, possesses multiple biological activities and properties. Oridonin exhibited efficient anti-inflammatory activity by inducing a switch in macrophage polarization to the anti-inflammatory phenotype through inhibition of the Notch pathway in our in vitro study; therefore, its potential therapeutic effects were further investigated in the animal model of human Guillain-Barré syndrome (GBS) and other polyneuropathies - experimental autoimmune neuritis (EAN). Either preventive or therapeutic treatments with Oridonin greatly attenuated disease peak severity, suppressed paraparesis, shortened disease duration, and even delayed EAN onset. Progression of neuropathic pain, demyelination, inflammatory cellular accumulations, and inflammatory cytokines in peripheral nerves were significantly attenuated. Meanwhile, accumulation of immune cells in the spinal roots and microglial activation in the lumbar spinal cord were also reduced. Interestingly, Oridonin treatment significantly increased the proportion of anti-inflammatory macrophages and made them locally dominant among all infiltrated macrophages in the peripheral nerves. The down-regulation of local Notch pathway proteins, together with our in vitro results indicated their possible involvement. Taken together, our results demonstrated that Oridonin effectively suppressed EAN by attenuating local inflammatory reaction and increasing the proportion of immune regulating macrophages in the peripheral nerves, possibly through blockage of the Notch pathway, which suggests Oridonin as a potential therapeutic candidate for human GBS and neuropathies.
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Affiliation(s)
- Lu Xu
- Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Lei Li
- Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Chen-Yang Zhang
- Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Hermann Schluesener
- Division of Immunopathology of the Nervous System, Institute of Pathology and Neuropathology, University of Tübingen, Tübingen, Germany
| | - Zhi-Yuan Zhang
- Department of Pathology, Nanjing Medical University, Nanjing, China.,Division of Immunopathology of the Nervous System, Institute of Pathology and Neuropathology, University of Tübingen, Tübingen, Germany.,Department of Neurology, Sir Run Run Hospital, Nanjing Medical University, Nanjing, China
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60
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Ye J, Ye C, Huang Y, Zhang N, Zhang X, Xiao M. Ginkgo biloba sarcotesta polysaccharide inhibits inflammatory responses through suppressing both NF-κB and MAPK signaling pathway. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:2329-2339. [PMID: 30338529 DOI: 10.1002/jsfa.9431] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 08/28/2018] [Accepted: 10/14/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Polysaccharides, common components of natural products extensively studied as dietary supplements and functional foods, have been found to have various activities. In the present study, a water-soluble polysaccharide, namely GBSP3a, was isolated and purified from G. biloba sarcotesta. The anti-inflammatory activity of GBSP3a in lipopolysaccharide (LPS)-induced RAW264.7 macrophages and the potential underlying molecular mechanisms were then assessed. RESULTS GBSP3a exerted its anti-inflammatory effect by remarkably inhibiting the secretion of pro-inflammatory mediators and cytokines, including nitric oxide (NO), prostaglandin E2 (PGE2 ), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interleukin-1β (IL-1β) in LPS-stimulated RAW264.7 macrophages. Excessive mRNA and protein expression levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) were dose-dependently inhibited by GBSP3a in LPS-stimulated RAW264.7 cells. Further research suggested that the anti-inflammatory effect of GBSP3a can be attributed to the modulation of the NF-κB and MAPK signaling pathways. CONCLUSION GBSP3a exhibits anti-inflammatory activity and exerts its anti-inflammatory effect probably through suppressing both NF-κB and MAPK signaling pathway, indicating that GBSP3a could be used for the development of anti-inflammatory agent or nutraceuticals. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Jing Ye
- Department of Chemical Engineering and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, China
- Xiamen Engineering and Technological Research Center for Comprehensive Utilization of Marine Biological Resources, Xiamen, China
| | - Changqing Ye
- Department of Chemical Engineering and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, China
| | - Yayan Huang
- Department of Chemical Engineering and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, China
| | - Na Zhang
- Department of Chemical Engineering and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, China
- Xiamen Engineering and Technological Research Center for Comprehensive Utilization of Marine Biological Resources, Xiamen, China
| | - Xueqin Zhang
- Department of Chemical Engineering and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, China
- Xiamen Engineering and Technological Research Center for Comprehensive Utilization of Marine Biological Resources, Xiamen, China
| | - Meitian Xiao
- Department of Chemical Engineering and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, China
- Xiamen Engineering and Technological Research Center for Comprehensive Utilization of Marine Biological Resources, Xiamen, China
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Farkhondeh T, Samarghandian S, Roshanravan B. Impact of chrysin on the molecular mechanisms underlying diabetic complications. J Cell Physiol 2019; 234:17144-17158. [DOI: 10.1002/jcp.28488] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/17/2019] [Accepted: 02/20/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Tahereh Farkhondeh
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences Birjand Iran
| | - Saeed Samarghandian
- Noncommunicable Disease Research Center, Neyshabur University of Medical Sciences Neyshabur Iran
- Department of Basic Medical Sciences Neyshabur University of Medical Sciences Neyshabur Iran
| | - Babak Roshanravan
- Student Research Committee, Birjand University of Medical Sciences Birjand Iran
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Oridonin inhibits IL-1β-induced inflammation in human osteoarthritis chondrocytes by activating PPAR-γ. Int Immunopharmacol 2019; 69:382-388. [PMID: 30776647 DOI: 10.1016/j.intimp.2019.01.049] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/10/2019] [Accepted: 01/30/2019] [Indexed: 12/13/2022]
Abstract
Osteoarthritis (OA), a progressive disease of the joints, affects millions of people worldwide. In the present study, we investigated the effects of oridonin, a diterpenoid isolated from Rabdosia rubescens, on IL-1β-induced inflammation using human osteoarthritis chondrocytes. The results showed that oridonin significantly suppressed IL-1β-induced MMP1, MMP3, and MMP13 production. IL-1β-induced NO and PGE2 production, as well as inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression were also attenuated by oridonin. Western blot analysis demonstrated IL-1β-induced NF-κB activation was reduced by oridonin. Furthermore, the expression of PPAR-γ was increased by oridonin in a concentration-dependent manner. PPAR-γ antagonist could reverse the anti-inflammatory activity of oridonin. The results suggested that oridonin could be a candidate agent for the treatment of OA.
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Natural Compound Oridonin Inhibits Endotoxin-Induced Inflammatory Response of Activated Hepatic Stellate Cells. BIOMED RESEARCH INTERNATIONAL 2018; 2018:6137420. [PMID: 30687752 PMCID: PMC6330820 DOI: 10.1155/2018/6137420] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/16/2018] [Accepted: 12/09/2018] [Indexed: 12/17/2022]
Abstract
Hepatic stellate cells (HSCs) play an important role in hepatic fibrogenesis and inflammatory modulation. Endotoxin is dramatically increased in portal venous blood after serious injury and can contribute to liver damage. However, the mechanism underlying endotoxin's effects on HSCs remains largely unknown. Oridonin is a bioactive diterpenoid isolated from Rabdosia rubescens that exhibits anti-inflammatory properties in different tissues. In the present study, we determined the effects of oridonin on endotoxin-induced inflammatory response and signaling pathways in vitro. The production of proinflammatory cytokines in activated human HSCs line LX-2 was measured by ELISA and Western blots. Immunofluorescence and nuclear fractionation assay were used to determine NF-κB activity. Oridonin treatment significantly inhibited LPS-induced proinflammatory cytokines IL-1β, IL-6, and MCP-1 production as well as cell adhesion molecules ICAM-1 and VCAM-1. Additionally, oridonin blocked LPS-induced NF-κB p65 nuclear translocation and DNA binding activity. Oridonin prevented LPS-stimulated NF-κB regulator IKKα/β and IκBα phosphorylation and IκBα degradation. Combined treatment of oridonin and an Hsp70 substrate binding inhibitor synergistically suppressed LPS-stimulated proinflammatory cytokines and NF-κB pathway activation. Therefore, oridonin inhibits LPS-stimulated proinflammatory mediators through IKK/IκBα/NF-κB pathway. Oridonin could be a promising agent for a hepatic anti-inflammatory.
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Rong X, Sun-Waterhouse D, Wang D, Jiang Y, Li F, Chen Y, Zhao S, Li D. The Significance of Regulatory MicroRNAs: Their Roles in Toxicodynamics of Mycotoxins and in the Protection Offered by Dietary Therapeutics Against Mycotoxin-Induced Toxicity. Compr Rev Food Sci Food Saf 2018; 18:48-66. [DOI: 10.1111/1541-4337.12412] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 09/11/2018] [Accepted: 11/02/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Xue Rong
- Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes; the College of Food Science and Engineering, Shandong Agricultural Univ.; Taian Shandong 271018 P. R. China
| | - Dongxiao Sun-Waterhouse
- Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes; the College of Food Science and Engineering, Shandong Agricultural Univ.; Taian Shandong 271018 P. R. China
- School of Chemical Sciences; The Univ. of Auckland; Private Bag Auckland 92019 New Zealand
| | - Dan Wang
- Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes; the College of Food Science and Engineering, Shandong Agricultural Univ.; Taian Shandong 271018 P. R. China
- Shandong Inst. of Pomology; Taian Shandong 271000 P. R. China
| | - Yang Jiang
- Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes; the College of Food Science and Engineering, Shandong Agricultural Univ.; Taian Shandong 271018 P. R. China
| | - Feng Li
- Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes; the College of Food Science and Engineering, Shandong Agricultural Univ.; Taian Shandong 271018 P. R. China
| | - Yilun Chen
- Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes; the College of Food Science and Engineering, Shandong Agricultural Univ.; Taian Shandong 271018 P. R. China
| | - Shancang Zhao
- Central Laboratory of Shandong Academy of Agricultural Sciences; Key Laboratory of Test Technology on Food Quality and Safety of Shandong Province; Jinan Shandong 250100 P. R. China
| | - Dapeng Li
- Key Laboratory of Food Processing Technology and Quality Control of Shandong Higher Education Institutes; the College of Food Science and Engineering, Shandong Agricultural Univ.; Taian Shandong 271018 P. R. China
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Moreno JA, Gomez-Guerrero C, Mas S, Sanz AB, Lorenzo O, Ruiz-Ortega M, Opazo L, Mezzano S, Egido J. Targeting inflammation in diabetic nephropathy: a tale of hope. Expert Opin Investig Drugs 2018; 27:917-930. [PMID: 30334635 DOI: 10.1080/13543784.2018.1538352] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Diabetic nephropathy (DN) is the leading cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD). Beyond the new anti-diabetic drugs that possess markedly cardiovascular and renal protective effects, no novel direct therapies for DN have become available on the market in the last twenty years. Recently well-designed clinical trials for the treatment of DN, with attractive pathogenetic rationale, e.g. bardoxolone and atrasentan, were canceled or stopped because of safety concerns or lack of reaching the end points, respectively. AREAS COVERED In this review, we focus on the involvement of inflammation in the pathogenesis of DN. We update information from recent experimental and clinical studies that reported beneficial effects of several agents targeting chemokines, cytokines, transcription factors and kinases as well as several compounds with anti-inflammatory properties on DN. EXPERT OPINION Inflammation plays a key role in the DN progression. Preclinical studies have identified several anti-inflammatory molecules that effective decrease albuminuria and/or proteinuria. However, limited clinical trials in humans have been performed to confirm these results. Inhibitors of CCL2/CCR2, IL-1β and JAK/STAT pathways, and Nrf2 inducers are promising therapeutic options to improve the renal outcome of patients with DN, but appropriate clinical trials are necessary.
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Affiliation(s)
- Juan Antonio Moreno
- a Renal, Vascular and Diabetes Research Laboratory, Fundacion Jimenez Diaz University Hospital-Health Research Institute (FIIS-FJD) , Autonoma University of Madrid (UAM) , Madrid , Spain
| | - Carmen Gomez-Guerrero
- a Renal, Vascular and Diabetes Research Laboratory, Fundacion Jimenez Diaz University Hospital-Health Research Institute (FIIS-FJD) , Autonoma University of Madrid (UAM) , Madrid , Spain.,b Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM) , Madrid , Spain
| | - Sebastian Mas
- a Renal, Vascular and Diabetes Research Laboratory, Fundacion Jimenez Diaz University Hospital-Health Research Institute (FIIS-FJD) , Autonoma University of Madrid (UAM) , Madrid , Spain.,b Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM) , Madrid , Spain
| | - Ana Belen Sanz
- a Renal, Vascular and Diabetes Research Laboratory, Fundacion Jimenez Diaz University Hospital-Health Research Institute (FIIS-FJD) , Autonoma University of Madrid (UAM) , Madrid , Spain.,c Red de Investigación Renal (REDinREN) , Spain
| | - Oscar Lorenzo
- a Renal, Vascular and Diabetes Research Laboratory, Fundacion Jimenez Diaz University Hospital-Health Research Institute (FIIS-FJD) , Autonoma University of Madrid (UAM) , Madrid , Spain.,b Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM) , Madrid , Spain
| | - Marta Ruiz-Ortega
- c Red de Investigación Renal (REDinREN) , Spain.,d Biology in Renal Diseases Laboratory , FIIS-FJD, UAM , Madrid , Spain
| | - Lucas Opazo
- e Division of Nephrology, School of Medicine , Universidad Austral , Valdivia , Chile
| | - Sergio Mezzano
- e Division of Nephrology, School of Medicine , Universidad Austral , Valdivia , Chile
| | - Jesus Egido
- a Renal, Vascular and Diabetes Research Laboratory, Fundacion Jimenez Diaz University Hospital-Health Research Institute (FIIS-FJD) , Autonoma University of Madrid (UAM) , Madrid , Spain.,b Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM) , Madrid , Spain
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Qiao Y, Tian X, Men L, Li S, Chen Y, Xue M, Hu Y, Zhou P, Long G, Shi Y, Liu R, Liu Y, Qi Z, Cui Y, Shen Y. Spleen tyrosine kinase promotes NLR family pyrin domain containing 3 inflammasome‑mediated IL‑1β secretion via c‑Jun N‑terminal kinase activation and cell apoptosis during diabetic nephropathy. Mol Med Rep 2018; 18:1995-2008. [PMID: 29901140 PMCID: PMC6072182 DOI: 10.3892/mmr.2018.9164] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 05/18/2018] [Indexed: 12/31/2022] Open
Abstract
Diabetic nephropathy (DN) is a serious complication of diabetes and can cause an increased mortality risk. It was previously reported that NLR family pyrin domain containing 3 (NLRP3) inflammasome is involved in the pathogenesis of diabetes. However, the underlying mechanism is not clearly understood. In the present study, the effects of spleen tyrosine kinase (Syk) and c-Jun N-terminal kinase (JNK) on the NLRP3 inflammasome were examined in vivo and in vitro. Sprague-Dawley rats were injected intraperitoneally with streptozotocin (65 mg/kg) to induce diabetes. HK2 cells and rat glomerular mesangial cells (RGMCs) were examined to detect the expression of JNK and NLRP3 inflammasome-associated proteins following treatment with a Syk inhibitor or Syk-small interfering (si)RNA in a high glucose condition. In the present study, it was revealed that the protein and mRNA expression levels of NLRP3 inflammasome-associated molecules and the downstream mature interleukin (IL)-1β were upregulated in vivo and in vitro. The Syk inhibitor and Syk-siRNA suppressed high glucose-induced JNK activation, and subsequently downregulated the activation of the NLRP3 inflammasome and mature IL-1β in HK2 cells and RGMCs. Furthermore, high glucose-induced apoptosis of HK2 cells was reduced by the Syk inhibitor BAY61-3606. Therefore, the present results determined that high glucose-induced activation of the NLRP3 inflammasome is mediated by Syk/JNK activation, which subsequently increased the protein expression level of IL-1β and mature IL-1β. The present study identified that the Syk/JNK/NLRP3 signaling pathway may serve a vital role in the pathogenesis of DN.
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Affiliation(s)
- Yingchun Qiao
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Xixi Tian
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Li Men
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Shengyu Li
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Yufeng Chen
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Meiting Xue
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Yahui Hu
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Pengfei Zhou
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Guangfeng Long
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Yue Shi
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Ruiqing Liu
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Yunde Liu
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Zhi Qi
- Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin 300071, P.R. China
| | - Yujie Cui
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
| | - Yanna Shen
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300203, P.R. China
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