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Chen F, Li B, Li W, Chen W, Huang Y, Tian Y, Yang B, Yuan M, Xu D, Cao N. Polysaccharide of Atractylodes macrocephala Koidz alleviate lipopolysaccharide-stimulated liver inflammation injury of goslings through miR-223/NLRP3 axis. Poult Sci 2023; 102:102285. [PMID: 36436369 PMCID: PMC9706645 DOI: 10.1016/j.psj.2022.102285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/08/2022] [Accepted: 10/19/2022] [Indexed: 11/05/2022] Open
Abstract
Lipopolysaccharide (LPS) infection could cause severe liver inflammation and lead to liver damage, even death. Previous studies have shown that polysaccharide of Atractylodes macrocephala Koidz (PAMK) could protect liver from inflammation caused by LPS in mice. However, whether PAMK could alleviate liver inflammatory injury in other animals with LPS is still unknown. For evaluating whether PAMK could alleviate liver inflammatory injury in goslings with LPS, a total of 80 healthy 1-day old Magang goslings were randomly divided into 4 groups (control group, PAMK group, LPS group, and PAMK+LPS group). Goslings in control group and LPS group were fed with basal diet, and goslings in PAMK group and PAMK+LPS group were fed basal diet supplemented with 400 mg/kg PAMK to the end of trial. On 24 d of age, goslings in the control group and PAMK group were intraperitoneal injected 0.5 mL normal saline, and goslings in LPS and PAMK+LPS groups were intraperitoneal injected with LPS at 5 mg/kg BW. The serum and liver samples were collected for further analysis after treatment of LPS at 6, 12, 24, and 48 h. Furthermore, the hepatocytes were extracted from goose embryo to measure the expression of the key genes of miR-223/NLRP3 axis. The results showed that PAMK pretreatment could maintain normal cell morphology of liver, alleviate the enhanced levels of biochemical indexes ALT and AST, decrease the levels of IL-1β and IL-18, increase the relative mRNA expression of miR-223, and decrease the expression of NLRP3, Caspase-1, and cleaved Caspase-1 in liver and hepatocytes of goslings induced by LPS. These results indicated that PAMK could relieve inflammatory liver tissue damage after LPS treatment and downregulate the level of inflammation factors via miR-223/NLRP3 axis, thus playing a liver protective role in liver inflammation injury in goslings.
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Affiliation(s)
- Feiyue Chen
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 510225, China
| | - Bingxin Li
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 510225, China
| | - Wanyan Li
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 510225, China
| | - Wenbin Chen
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 510225, China
| | - Yunmao Huang
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 510225, China
| | - Yunbo Tian
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 510225, China
| | - Baohe Yang
- Yunnan Kuaidaduo Animal Husbandry Technology Co., Ltd, Yuxi 653100, China
| | - Mingfeng Yuan
- Yunnan Kuaidaduo Animal Husbandry Technology Co., Ltd, Yuxi 653100, China
| | - Danning Xu
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 510225, China
| | - Nan Cao
- College of Animal Science & Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Province Key Laboratory of Waterfowl Healthy Breeding, Guangzhou 510225, China.
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Pan J, Wang H, Chen Y. Trends and frontiers in natural products for arthritis, 2000-2021: A bibliometric analysis. Medicine (Baltimore) 2022; 101:e30996. [PMID: 36397359 PMCID: PMC9666140 DOI: 10.1097/md.0000000000030996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Arthritis has become one of the trouble diseases that upsets people. A growing number of studies have shown that natural products have great potential for the treatment of arthritis. However, few bibliometrics have been systematically studied in this area. This paper analyzes the literature data of natural products on the arthritis research, and the research hot spots and future research directions of the treatment of arthritis by natural products were explored. METHOD Through CiteSpace, VOSviewer software and Bibliometricx under the R language environment, the article and review literatures on the treatment of arthritis with natural drugs in the Web of Science core collection database were analyzed by bibliometric analysis. RESULTS On December 28, 2021, a total of 2102 records were retrieved, 81.69% publications were issued in 2012 to 2021, mainly in China-dominated Asian countries, with cooperation among countries. The analysis of the number of articles published by institutions shows that the number of articles published by China Academy of Chinese Medical Sciences is up to 82. Lu, Aiping and Smolen, JS are the authors with the highest citation frequency and co-citation frequency. Keywords analysis showed that the research of natural drugs mainly focused on gene expression, anti-inflammatory and other mechanisms and signaling pathways. With the progress of science and technology and the integration of multi-disciplines, the research on natural drugs for arthritis will be more in-depth and specific. CONCLUSION In this study, literature metrology analysis was conducted on natural products in the treatment of arthritis, in order to grasp the background, trends and frontiers of the research, and predict possible research hotspots in the future. It is expected to provide some reference value and direction for future scholars in this field.
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Affiliation(s)
- Junying Pan
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Haoyu Wang
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yinghua Chen
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
- *Correspondence: Yinghua Chen, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin 150040, China (e-mail: )
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Network Pharmacology-Based Analysis on the Curative Effect of Kunxian Capsules against Rheumatoid Arthritis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6812374. [PMID: 34630616 PMCID: PMC8497097 DOI: 10.1155/2021/6812374] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/29/2021] [Accepted: 09/15/2021] [Indexed: 12/03/2022]
Abstract
Kunxian capsules (KCs), a Chinese patent medicine, have been clinically proven to be effective in the treatment of rheumatoid arthritis (RA). However, the chemical profile of KC remains to be characterized, and the mechanism underlying the protective effect against RA is yet to be elucidated. Here, a network pharmacology-based approach was adopted, integrated with the chemical profiling of KC by UHPLC-Q-TOF/MS. As a result, a total of 67 compounds have been identified from KC extract, among which 43 were authenticated by comparison to the mass spectrum of standard chemicals. ADME behaviors of the chemical constituents of KC were predicted, resulting in 35 putative active ingredients. Through target prediction of both active ingredients of KC and RA and PPI analysis, core targets were screened out, followed by biological process and related pathway enrichment. Then, a TCM-herb-ingredient-target-pathway network was constructed and a multicomponent, multitarget, and multipathway synergistic mechanism was proposed, providing an information basis for further investigation. The active pharmaceutical ingredients included mainly terpenoids (such as triptolide and celastrol), sesquiterpene pyridines (such as wilforgine and wilforine), and flavonoids (such as icariin, epimedin A, B, and C, and 2″-O-rhamnosylicariside II).
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Pan W, Wang H, Ruan J, Zheng W, Chen F, Kong J, Wang Y. lncRNA myocardial infarction-associated transcript (MIAT) knockdown alleviates LPS-induced chondrocytes inflammatory injury via regulating miR-488-3p/sex determining region Y-related HMG-box 11 (SOX11) axis. Open Life Sci 2021; 16:511-522. [PMID: 34124371 PMCID: PMC8168443 DOI: 10.1515/biol-2021-0023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 10/18/2020] [Accepted: 11/15/2020] [Indexed: 01/06/2023] Open
Abstract
Long noncoding RNA (lncRNA) has been shown to be involved in the development of osteoarthritis (OA), an age-related bone and joint disease. However, the function and possible molecular mechanism of lncRNA myocardial infarction-associated transcript (MIAT) in lipopolysaccharide (LPS)-induced chondrocytes injury model remain unexplored. Cell viability and apoptosis were detected by methyl thiazolyl tetrazolium (MTT) and flow cytometry, respectively. Western blot was used to detect protein expression. The concentrations of inflammatory factors were estimated by enzyme-linked immunosorbent assay (ELISA). Abundances of MIAT, microRNA-488-3p (miR-488-3p), and sex determining region Y-related HMG-box 11 (SOX11) were examined by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). Dual-luciferase reporter and RNA immunoprecipitation (RIP) assays were performed to analyze the interaction between miR-488-3p and MIAT or SOX11. LPS caused chondrocytes injury by reducing cell activity and increasing apoptosis rate and inflammatory factor secretions. Higher levels of MIAT and SOX11 and lower miR-488-3p were observed in LPS-treated C28/I2 cells. Importantly, knockdown of MIAT attenuated the LPS-induced cell injury by targeting miR-488-3p, and miR-488-3p overexpression weakened the LPS-induced cell injury by targeting SOX11. Additionally, repression of MIAT inactivated the LPS-induced NF-κB signaling pathway by decreasing SOX11 and increasing miR-488-3p. Knockdown of MIAT alleviated the LPS-induced chondrocytes injury by inhibiting the NF-κB signaling pathway mediated by the miR-488-3p/SOX11 axis.
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Affiliation(s)
- Weiwei Pan
- Department of Orthopaedic, Taizhou Municipal Hospital, No. 381, Zhongshan East Road, Jiaojiang District, Taizhou 318000, Zhejiang, China
| | - Haibao Wang
- Department of Orthopaedic, Taizhou Municipal Hospital, No. 381, Zhongshan East Road, Jiaojiang District, Taizhou 318000, Zhejiang, China
| | - Jianwei Ruan
- Department of Orthopaedic, Taizhou Municipal Hospital, No. 381, Zhongshan East Road, Jiaojiang District, Taizhou 318000, Zhejiang, China
| | - Wenbiao Zheng
- Department of Orthopaedic, Taizhou Municipal Hospital, No. 381, Zhongshan East Road, Jiaojiang District, Taizhou 318000, Zhejiang, China
| | - Fanghu Chen
- Department of Orthopaedic, Taizhou Municipal Hospital, No. 381, Zhongshan East Road, Jiaojiang District, Taizhou 318000, Zhejiang, China
| | - Jinsong Kong
- Department of Orthopaedic, Taizhou Municipal Hospital, No. 381, Zhongshan East Road, Jiaojiang District, Taizhou 318000, Zhejiang, China
| | - Yong Wang
- Department of Orthopaedic, Taizhou Municipal Hospital, No. 381, Zhongshan East Road, Jiaojiang District, Taizhou 318000, Zhejiang, China
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Dai S, Wang H, Wang M, Zhang Y, Zhang Z, Lin Z. Comparative transcriptomics and network pharmacology analysis to identify the potential mechanism of celastrol against osteoarthritis. Clin Rheumatol 2021; 40:4259-4268. [PMID: 33870466 DOI: 10.1007/s10067-021-05726-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 03/11/2021] [Accepted: 03/29/2021] [Indexed: 01/17/2023]
Abstract
INTRODUCTION Celastrol is a promising therapeutic agent for the treatment of osteoarthritis (OA). However, the mechanism of action of celastrol is unclear. This study was aiming to identify the potential function of celastrol on OA and determine its underlying mechanism. METHOD Celastrol targets were collected from web database searches and literature review, while pathogenic OA targets were obtained from Online Mendelian Inheritance in Man (OMIM) and GeneCards databases. Transcriptomics data was sequenced using an Illumina HiSeq 4000 platform. Celastrol-OA overlapping genes were then identified followed by prediction of the potential function and signaling pathways associated with celastrol using gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. A celastrol-target network was constructed to identify the candidate core targets of celastrol. The predictions were then validated by performing molecular docking and molecular dynamics simulation studies. RESULTS In total, 96 genes were identified as the putative celastrol targets for treatment of OA. These genes were possibly involved in cell phenotype changes including response to lipopolysaccharide and oxidative stress as well as in cell apoptosis and aging. The genes also induced the mTOR pathway and AGE-RAGE signaling pathway at the intracellular level. Additionally, results indicated that 13 core targets including mTOR, TP53, MMP9, EGFR, CCND1, MAPK1, STAT3, VEGFA, CASP3, TNF, MYC, ESR1, and PTEN were likely direct targets of celastrol in OA. Finally, mTOR was determined as the most likely therapeutic target of celastrol in OA. CONCLUSION This study provides a basic understanding and novel insight into the potential mechanism of celastrol against OA. Key Points • Our study provides a strong indication that further study of celastrol therapy in OA is required. • mTOR is the most likely therapeutic target of celastrol in OA.
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Affiliation(s)
- Siming Dai
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150086, Heilongjiang, China
| | - Hui Wang
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150086, Heilongjiang, China
| | - Meng Wang
- Key Laboratory of Basic and Applied Research in North Medicine, Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yue Zhang
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150086, Heilongjiang, China
| | - Zhiyi Zhang
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150086, Heilongjiang, China.
| | - Zhiguo Lin
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150086, Heilongjiang, China.
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Wang Y. Tripterine ameliorates monosodium urate crystal-induced gouty arthritis by altering macrophage polarization via the miR-449a/NLRP3 axis. Inflamm Res 2021; 70:323-341. [PMID: 33559709 DOI: 10.1007/s00011-021-01439-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 01/19/2021] [Accepted: 01/28/2021] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE Tripterine (Trip) is frequently applied to alleviate inflammation in various diseases such as rheumatoid arthritis. Macrophages have both anti-inflammatory and pro-inflammatory functions. However, whether Trip can inhibit cell inflammation in gouty arthritis (GA) remains undiscovered and whether the mechanism involved in macrophage polarization is also undetermined. This paper aims to study the effects of Trip on inflammation and macrophage polarization in GA. METHODS Monosodium urate (MSU) crystals were used to establish GA mouse models, and bone marrow-derived macrophages (BMDMs) were induced to construct GA cell models. Pretreatments of Trip and injection of Antagomir-449a/Agomir-449a were performed on mice for 6 days. The effects of Trip and miR-449 on toe swelling, joint damage of GA mouse were examined. The alternations on cell morphology, cell proliferation marker Ki67, inflammatory cytokines, NLRP3 inflammasome, and NF-κB signaling-related proteins were also determined both in vivo and in vitro. Dual-luciferase reporter gene assay and RIP assay were adopted to estimate the targeting relationship between miR-449a and NLRP3. RESULTS GA mouse model had increased M1 macrophage, intensified inflammation response, along with suppressed miR-449a expression. Following administration of Trip attenuated cell inflammation, promoted macrophage polarize to M2 phenotype, elevated miR-449a expression, repressed the phosphorylation levels of NF-κB signaling-related proteins, and diminished IκBα expression in vivo and in vitro. However, inhibition of miR-449a hindered the favorable effect of Trip on GA and increased NLRP3 inflammasome expression. MiR-449a directly targeted NLRP3. Overexpression of NLRP3 partially eliminated the biological effects of miR-449a agonist. CONCLUSION Trip regulates macrophage polarization through miR-449a/NLRP3 axis and the STAT3/NF-κB pathway to mitigate GA. The elucidation on the molecular mechanism of Trip in GA may provide theoretical guidance for clinical therapy of GA.
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Affiliation(s)
- Yu Wang
- Department of Rheumatism Immunology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, 150001, People's Republic of China.
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Nie Y, Fu C, Zhang H, Zhang M, Xie H, Tong X, Li Y, Hou Z, Fan X, Yan M. Celastrol slows the progression of early diabetic nephropathy in rats via the PI3K/AKT pathway. BMC Complement Med Ther 2020; 20:321. [PMID: 33097050 PMCID: PMC7583204 DOI: 10.1186/s12906-020-03050-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 08/11/2020] [Indexed: 12/16/2022] Open
Abstract
Background Diabetic nephropathy serves as one of the most regular microvascular complications of diabetes mellitus and is the main factor that causes end-stage renal disease and incident mortality. As the beneficial effect and minute adverse influence of Celastrol on the renal system requires further elucidation, the renoprotective function of Celastrol in early diabetic nephropathy was investigated. Methods In high-fat and high-glucose diet/streptozotocin-induced diabetic rats which is the early diabetic nephropathy model, ALT, AST, 24 h urinary protein, blood urea nitrogen, and serum creatinine content were observed. Periodic acid-Schiff staining, enzyme-linked immunosorbent assay, immunohistochemical analysis, reverse transcription-polymerase chain reaction, and western blot analysis were used to explore the renoprotective effect of Celastrol to diabetic nephropathy rats and the underlying mechanism. Results High dose of Celastrol (1.5 mg/kg/d) not only improved the kidney function of diabetic nephropathy (DN) rats, and decreased the blood glucose and 24 h urinary albumin, but also increased the expression of LC3II and nephrin, and downregulated the expression of PI3K, p-AKT, and the mRNA level of NF-κB and mTOR. Conclusion Celastrol functions as a potential therapeutic substance, acting via the PI3K/AKT pathway to attenuate renal injury, inhibit glomerular basement membrane thickening, and achieve podocyte homeostasis in diabetic nephropathy.
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Affiliation(s)
- Yusong Nie
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China.,Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China.,Xianyang Central Hospital, Xianyang, 712000, Shaanxi, China
| | - Chengxiao Fu
- Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, 410013, China
| | - Huimin Zhang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Min Zhang
- Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China.,First clinical medical college, Shaanxi University of Chinese Medicine, Xianyang, 712000, Shaanxi, China
| | - Hui Xie
- Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China
| | - Xiaopei Tong
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Yao Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Zhenyan Hou
- Department of Pharmacy, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong, China
| | - Xinrong Fan
- Hunan University of Chinese Medicine, Changsha, 410208, Hunan, China. .,First clinical medical college, Shaanxi University of Chinese Medicine, Xianyang, 712000, Shaanxi, China. .,Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Miao Yan
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China.
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Ma L, Cao Y, Zhang L, Li K, Yan L, Pan Y, Zhu J. Celastrol mitigates high glucose-induced inflammation and apoptosis in rat H9c2 cardiomyocytes via miR-345-5p/growth arrest-specific 6. J Gene Med 2020; 22:e3201. [PMID: 32307774 DOI: 10.1002/jgm.3201] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/11/2020] [Accepted: 04/13/2020] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Celastrol (Cel) has been corroborated as an anti-inflammatory and anti-apoptotic agent in multiple cell damage models. However, the protective effect of Cel in high glucose (HG)-induced cardiomyocyte injury is still unclear. The present study aimed to determine whether Cel can mitigate HG-stimulated cardiomyocyte injury via regulating the miR-345-5p/growth arrest-specific 6 (Gas6) signaling pathway. METHODS Cardiomyocytes were exposed to normal glucose (NG; 5 mmol/l) or HG (30 mmol/l) and then administered with Cel. Cell counting kit-8 and flow cytometry assays were used to detect cell proliferative activity and apoptosis. mRNA and protein expression were analyzed using a quantitative reverse transcriptase-polymerase chain reaction and western blotting, respectively. A bioinformatics algorithm and a luciferase reporter gene assay were used to determine whether Gas6 is a direct target of miR-345-5p. RESULTS The present study confirmed the inhibitory effects of Cel in HG-induced inflammation in cardiomyocytes. Moreover, Cel exhibited the ability to antagonize HG-induced cardiomyocyte apoptosis and suppress the elevated Bax/Bcl-2 ratio elicited by HG stimulation. Intriguingly, Cel treatment revoked the HG-triggered repression of Gas6 protein expression, and Gas6 loss-of-function accelerated HG-induced cardiomyocyte apoptosis. HG-triggered up-regulation of miR-345-5p expression was depressed following Cel treatment. Importantly, we validated that Gas6 is a direct target of miR-345-5p. Transfection with miR-345-5p inhibitors restrained HG-induced release of pro-inflammatory cytokines and cell apoptosis. CONCLUSIONS The findings of the present study demonstrate that Cel administration antagonized HG-induced cardiomyocyte apoptosis and inflammation through up-regulating Gas6 expression by restraining miR-345-5p.
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Affiliation(s)
- Liping Ma
- Department of Cardiology, Shulan (Hangzhou) Hospital, Hangzhou, China
| | - Yanjing Cao
- Department of Neurology, Hangzhou Third People's Hospital, Hangzhou, China
| | - Lin Zhang
- Department of Cardiology, Shulan (Hangzhou) Hospital, Hangzhou, China
| | - Ketao Li
- Department of Cardiology, Shulan (Hangzhou) Hospital, Hangzhou, China
| | - Laixing Yan
- Department of Cardiology, Shulan (Hangzhou) Hospital, Hangzhou, China
| | - Yizhan Pan
- Department of Cardiology, Shulan (Hangzhou) Hospital, Hangzhou, China
| | - Jianhua Zhu
- Department of Cardiology, the First Affiliated Hospital of Zhejiang University, Hangzhou, China
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Liu DD, Zhang BL, Yang JB, Zhou K. Celastrol ameliorates endoplasmic stress-mediated apoptosis of osteoarthritis via regulating ATF-6/CHOP signalling pathway. J Pharm Pharmacol 2020; 72:826-835. [PMID: 32201950 DOI: 10.1111/jphp.13250] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/09/2020] [Indexed: 12/13/2022]
Abstract
Abstract
Objectives
Osteoarthritis (OA) is a common degenerative joint disease with the pathological features of the reduced cartilage cellularity. Celastrol, a compound from Tripterygium wilfordii, exerted therapeutic effects on arthritis, but the potential mechanism remains unclear.
Methods
Tunicamycin was used to establish a model of OA in vitro, and ACLT surgery model in rats was applied to verify the mechanism. Chondrocytes were isolated from the knee articular cartilage of rabbit. MTT and flow cytometry assay were used to detect cell viability and apoptosis rate. Haematoxylin–eosin staining was used to assess for the histopathological changes. The activity and expression of apoptosis-related factors and ERs (endoplasmic reticulum stress)-related factors were detected by ELISA, WB, PCR and IHC, respectively.
Key findings
Celastrol exhibited significant enhancement on cell viability and reduced the rate of apoptosis in Tm-exposed chondrocytes. Celastrol reduced enzyme activity and protein expression of caspase-3, caspase-6 and caspase-9, decreased Bip, Atf6, Chop and Xbp-1 expression both at protein and mRNA levels. Celastrol showed a more significant effect on cell apoptosis rate and mRNA expression in the combination with 4-PBA.
Conclusions
This study reveals that celastrol may prevent OA by inhibiting the ERs-mediated apoptosis. All these might supply beneficial hints for celastrol on OA treatment.
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Affiliation(s)
- Da Dong Liu
- Department of Orthopedic, The Central Hospital of Zhoukou City, Henan, China
| | - Ben Li Zhang
- Department of Orthopedic, The Central Hospital of Zhoukou City, Henan, China
| | - Ji Bin Yang
- Department of Orthopedic, The Central Hospital of Zhoukou City, Henan, China
| | - Kunpeng Zhou
- Department of Orthopedic, The Central Hospital of Zhoukou City, Henan, China
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