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Heine LK, Rajasinghe LD, Wagner JG, Lewandowski RP, Li QZ, Richardson AL, Tindle AN, Shareef JJ, Harkema JR, Pestka JJ. Subchronic intranasal lipopolysaccharide exposure induces pulmonary autoimmunity and glomerulonephritis in NZBWF1 mice. Autoimmunity 2024; 57:2370536. [PMID: 38976509 PMCID: PMC11289745 DOI: 10.1080/08916934.2024.2370536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 06/16/2024] [Indexed: 07/10/2024]
Abstract
Lupus, a systemic autoimmune disease shaped by gene-environment interplay, often progresses to endstage renal failure. While subchronic systemic exposure to bacterial lipopolysaccharide (LPS) triggers autoimmunity and glomerulonephritis in lupus-prone mice, it is unknown if inhaling LPS, which is common in certain occupations, can similarly trigger lupus. Here we determined how subchronic intranasal (IN) LPS instillation influences autoimmunity and glomerulonephritis development in lupusprone NZBWF1 female mice. Briefly, mice were IN-instilled with vehicle or E. coli LPS (0.8 μg/g) twice weekly for 5 wk, followed by necropsy. For systemic comparison, additional cohorts of mice were injected with LPS intraperitoneally (IP) using identical doses/timing. Lungs were assessed for inflammatory and autoimmune responses and then related to systemic autoimmunity and glomerulonephritis. IN/LPS exposure induced in the lung: i) leukocyte infiltration, ii)mRNA signatures for cytokines, chemokines, IFN-regulated, and cell death-related genes, iii) ectopic lymphoid tissue formation, and iv)diverse IgM and IgG autoantibodies (AAbs). Pulmonary effects coincided with enlarged spleens, elevated plasma IgG AAbs, and inflamed IgG-containing kidney glomeruli. In contrast, IP/LPS treatment induced systemic autoimmunity and glomerulonephritis without pulmonary manifestations. Taken together, these preclinical findings suggest the lung could serve as a critical nexus for triggering autoimmunity by respirable LPS in genetically predisposed individuals.
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Affiliation(s)
- Lauren K. Heine
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
| | - Lichchavi D. Rajasinghe
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
| | - James G. Wagner
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Ryan P. Lewandowski
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Quan-Zhen Li
- Department of Immunology and Internal Medicine, IIMT Microarray Core Facility, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Alexa L. Richardson
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
| | - Ashleigh N. Tindle
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Jenan J. Shareef
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Jack R. Harkema
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - James J. Pestka
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
- Department of Microbiology, Genetics, and Immunology, Michigan State University, East Lansing, MI, United States
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Jia X, Zhu L, Zhu Q, Zhang J. The role of mitochondrial dysfunction in kidney injury and disease. Autoimmun Rev 2024; 23:103576. [PMID: 38909720 DOI: 10.1016/j.autrev.2024.103576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 06/25/2024]
Abstract
Mitochondria are the main sites of aerobic respiration in the cell and mainly provide energy for the organism, and play key roles in adenosine triphosphate (ATP) synthesis, metabolic regulation, and cell differentiation and death. Mitochondrial dysfunction has been identified as a contributing factor to a variety of diseases. The kidney is rich in mitochondria to meet energy needs, and stable mitochondrial structure and function are essential for normal kidney function. Recently, many studies have shown a link between mitochondrial dysfunction and kidney disease, maintaining mitochondrial homeostasis has become an important target for kidney therapy. In this review, we integrate the role of mitochondrial dysfunction in different kidney diseases, and specifically elaborate the mechanism of mitochondrial reactive oxygen species (mtROS), autophagy and ferroptosis involved in the occurrence and development of kidney diseases, providing insights for improved treatment of kidney diseases.
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Affiliation(s)
- Xueqian Jia
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, PR China
| | - Lifu Zhu
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, PR China
| | - Qixing Zhu
- Institute of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China; Key Laboratory of Dermatology, Ministry of Education, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China.
| | - Jiaxiang Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, PR China; Key Laboratory of Dermatology, Ministry of Education, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China; The Center for Scientific Research, Anhui Medical University, Hefei, PR China.
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Hua KF, Hsu HT, Huang MS, Chiu HW, Wong WT, Peng CH, Lin YB, Chen A, Wang CC, Hsu CH, Wu CH, Lin WY, Ho CL, Li LH. Honokiol Exhibits Anti-NLRP3 Inflammasome and Antimicrobial Properties in Neisseria gonorrhoeae-Infected Macrophages. J Inflamm Res 2024; 17:3499-3513. [PMID: 38828053 PMCID: PMC11144415 DOI: 10.2147/jir.s454221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 05/14/2024] [Indexed: 06/05/2024] Open
Abstract
Purpose The NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome, crucial in infectious and inflammatory diseases by regulating IL-1β, presents a target for disease management. Neisseria gonorrhoeae causes gonorrhea in over 87 million people annually, with previous research revealing NLRP3 inflammasome activation in infected macrophages. No natural products have been reported to counteract this activation. Exploring honokiol, a phenolic compound from Chinese herbal medicine, we investigated its impact on NLRP3 inflammasome activation in N. gonorrhoeae-infected macrophages. Methods Honokiol's impact on the protein expression of pro-inflammatory mediators was analyzed using ELISA and Western blotting. The generation of intracellular H2O2 and mitochondrial reactive oxygen species (ROS) was detected through specific fluorescent probes (CM-H2DCFDA and MitoSOX, respectively) and analyzed by flow cytometry. Mitochondrial membrane integrity was assessed using specific fluorescent probes (MitoTracker and DiOC2(3)) and analyzed by flow cytometry. Additionally, the effect of honokiol on the viability of N. gonorrhoeae was examined through an in vitro colony-forming units assay. Results Honokiol effectively inhibits caspase-1, caspase-11 and GSDMD activation and reduces the extracellular release of IL-1β, NLRP3, and apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) in N. gonorrhoeae-infected macrophages. Detailed investigations have demonstrated that honokiol lowers the production of H2O2 and the phosphorylation of ERK1/2 in N. gonorrhoeae-infected macrophages. Importantly, the phosphorylation of JNK1/2 and p38 and the activation of NF-κB remain unaffected. Moreover, honokiol reduces the N. gonorrhoeae-mediated generation of reactive oxygen species within the mitochondria, preserving their integrity. Additionally, honokiol suppresses the expression of the pro-inflammatory mediator IL-6 and inducible nitric oxide synthase induced by N. gonorrhoeae independently of NLRP3. Impressively, honokiol exhibits in vitro anti-gonococcal activity against N. gonorrhoeae. Conclusion Honokiol inhibits the NLRP3 inflammasome in N. gonorrhoeae-infected macrophages and holds great promise for further development as an active ingredient in the prevention and treatment of symptoms associated with gonorrhea.
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Affiliation(s)
- Kuo-Feng Hua
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Hsien-Ta Hsu
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
- School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan
| | - May-Shu Huang
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Hsiao-Wen Chiu
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Wei-Ting Wong
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Chien-Hsiu Peng
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Yu-Bei Lin
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Ann Chen
- Department of Pathology, Hualien Tzu Chi Hospital, Hualien, Taiwan
| | - Chien-Chun Wang
- Infectious Disease Division, Linsen, Chinese Medicine and Kunming Branch, Taipei City Hospital, Taipei, Taiwan
- Kunming Prevention and Control Center, Taipei City Hospital, Taipei, Taiwan
| | - Chung-Hua Hsu
- Linsen, Chinese Medicine and Kunming Branch, Taipei City Hospital, Taipei, Taiwan
- Institute of Traditional Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chun-Hsien Wu
- Division of Cardiology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Wen-Yu Lin
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
- Division of Cardiology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chen-Lung Ho
- Division of Wood Cellulose, Taiwan Forestry Research Institute, Taipei, Taiwan
| | - Lan-Hui Li
- Department of Laboratory Medicine, Linsen, Chinese Medicine and Kunming Branch, Taipei City Hospital, Taipei, Taiwan
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Chen H, Liu Y, Wei L, Wang H, Zheng Z, Yan T, Jia J, Li D. The effect of fibrinoid necrosis on the clinical features and outcomes of primary IgA nephropathy. BMC Nephrol 2023; 24:366. [PMID: 38082385 PMCID: PMC10712095 DOI: 10.1186/s12882-023-03419-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 11/30/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND To explore the clinicopathologic features and outcomes of IgAN patients who presented with fibrinoid necrosis (FN) lesions or not and the effect of immunosuppressive (IS) treatment in IgAN patients with FN lesions as well. METHODS This was a retrospective cohort study with 665 patients diagnosed with primary IgAN from January 2010 to December 2020 in Tianjin Medical University General Hospital and having detailed baseline and follow-up characteristics. Patients were divided into two groups depending on the appearance of FN lesions. Patients with FN lesions were recruited into Group FN1, while patients who were not found FN lesions in their renal biopsy specimens were recruited into Group FN0. Compare the differences between Group FN0 and Group FN1 in baseline clinicopathologic features, treatment solutions and follow-up data as well. To evaluate the impact of different fractions of FN lesions on baseline characteristics and prognosis of IgAN, we subdivided patients in Group FN1 into 3 groups depending on the FN lesions distribution, Mild Group: 0 < FN% < 1/16; Moderate Group: 1/16 < FN% < 1/10; Severe Group: FN% > 1/10. Furthermore, we compared the differences in baseline clinicopathologic features, treatment solutions and follow-up data among these three groups. Kidney endpoint event was defined as patients went into end-stage kidney disease (ESKD), which estimated glomerular filtration rate (eGFR) < 15 ml/min/1.73 m^2, regularly chronic dialysis over 6 months or received renal transplantation surgery. The kidney composite endpoint was defined by a ≥ 30% reduction in eGFR, double Scr increase than on-set, ESKD, chronic dialysis over 6 months or renal transplantation. Compare the survival from a composite endpoint rate in different groups by Kaplan-Meier survival curve. The univariate and multivariate Cox models were used to establish the basic model for renal outcomes in patients with FN lesions. RESULTS (1) A total of 230 patients (34.59%) were found FN lesions in all participants. Patients with FN lesions suffered more severe hematuria than those without. On the hand of pathological characteristic, patients with FN lesions showed higher proportions of M1, E1, C1/C2 and T1/T2 lesions compared with those without FN lesions. (2) The 1-year, 3-year, and 5-year survival of the composite endpoint were lower in the FN1 group than FN0 group. (3) After adjusting for clinicopathological variables, the presence of FN lesions was a significantly independent risk factor for composite endpoint. By using multivariate Cox regression analyses, we also found when the fraction of FN lesions exceeded 10%, the risk of progression into composite endpoint increased 3.927 times. CONCLUSION Fibrinoid necrosis of capillary loops is an independent risk factor of poor renal outcomes. More effective treatment should be considered for those who had FN lesions.
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Affiliation(s)
- Hongshan Chen
- Department of Nephrology, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, PR China
| | - Youxia Liu
- Department of Nephrology, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, PR China
| | - Li Wei
- Department of Nephrology, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, PR China
| | - He Wang
- Department of Nephrology, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, PR China
| | - Zhenfeng Zheng
- Department of Nephrology, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, PR China
| | - Tiekun Yan
- Department of Nephrology, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, PR China
| | - Junya Jia
- Department of Nephrology, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, PR China.
| | - Dong Li
- Department of Nephrology, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, PR China.
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Tian J, Huang T, Chen J, Wang J, Chang S, Xu H, Zhou X, Yang J, Xue Y, Zhang T, Fan W, Wang Y. SIRT1 slows the progression of lupus nephritis by regulating the NLRP3 inflammasome through ROS/TRPM2/Ca 2+ channel. Clin Exp Med 2023; 23:3465-3478. [PMID: 37261640 DOI: 10.1007/s10238-023-01093-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 05/12/2023] [Indexed: 06/02/2023]
Abstract
Systemic lupus erythematosus (SLE) is a chronic multisystem inflammatory disease associated with autoantibody formation. Lupus nephritis (LN) is one of the most severe organ manifestations of SLE. The inflammatory response is a key factor in kidney injury, and the NLRP3 inflammasome is frequently associated with the pathogenesis of LN. Sirtuin 1 (SIRT1), a nicotinamide adenine dinucleotide (NAD +)-dependent histone deacetylase, is a promising therapeutic target for preventing renal injury. However, the mechanism of SIRT1 in LN remains unclear. Here, we aimed to investigate the mechanism by which SIRT inhibits the NLRP3 inflammasome to slow the progression of LN. We detected the expression of SIRT1 and the infiltration of macrophages in MRL/lpr mice; the results showed that the expression of SIRT1 was decreased, and the symptoms of lupus nephritis were relieved after the use of resveratrol, which upregulated SIRT1. In vitro studies showed that after lipopolysaccharide (LPS) stimulation, SIRT1 expression decreased, and the NLRP3 inflammasome was activated. Upregulation of SIRT1 inhibits NLRP3 inflammasome activation and assembly by interfering with two signalling pathways. First, SIRT1 affects NF-κB expression, transcription, and inflammatory cytokine expression. Second, SIRT1 modulates calcium influx induced by transient receptor potential channel M2 (TRPM2), which could be partly due to the inhibition of reactive oxygen species (ROS) production. Our findings suggest that upregulated SIRT1 inhibits the NLRP3 inflammasome to slow the progression of lupus nephritis by regulating NF-κB and ROS/TRPM2/Ca2+ channels. This study reveals a new anti-inflammatory mechanism of SIRT1, suggesting that SIRT1 may be a potential therapeutic target for the prevention of LN.
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Affiliation(s)
- Jihua Tian
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
| | - Taiping Huang
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Jingshu Chen
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Jing Wang
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Sijia Chang
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Huanyu Xu
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Xiaoshuang Zhou
- Department of Nephrology, The Affiliated People's Hospital of Shanxi Medical University, Shanxi Provincial People's Hospital, Shanxi Kidney Disease Institute, Taiyuan, 030012, Shanxi, China
| | - Jia Yang
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Yuan Xue
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Tingting Zhang
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Weiping Fan
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
| | - Yanhong Wang
- Department of Microbiology and Immunology, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
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Chen H, He J, Wang L, Lin Y, Mou Z, Huang X, Chen L. Identification of monocyte-associated biomarkers in systemic lupus erythematosus and their pan-cancer analysis. Lupus 2023; 32:1369-1380. [PMID: 37769649 DOI: 10.1177/09612033231204765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Immune dysregulation is not only a pathogenic mechanism in systemic lupus erythematosus (SLE) but also a potential cause of the link between SLE and cancer. The current understanding of SLE monocyte-associated biomarkers is limited, and the precise mechanism behind the link between SLE and cancer is uncertain. By using WGCNA and immune infiltration to analyze the GSE72326 dataset, we determined the most pertinent modules for monocytes and discovered eight candidate hub genes from them. The limma software was used to find genes that were differently expressed in SLE. The genes that overlapped between the two were chosen using a Venn diagram as the essential genes related to monocytes in SLE, and the essential genes were verified by several datasets. Correlation analysis and GSEA analysis were used to examine the probable immunological pathways connected to key genes. We examined the expression of hub genes in cancer and their interaction with monocytes using the GEPIA and TIMER databases to understand the significance of essential genes in tumorigenesis. In addition, we performed transcription factor identification. We discovered three biomarkers (IFI30, BLVRA, and RIN2) that are mostly involved in interferon-related signaling pathways and are associated with monocyte-mediated immune responses in SLE. The three important genes are also strongly expressed in a number of malignancies and have a relationship with monocytes. As a result, IFI30, BLVRA, and RIN2 may act as SLE-associated biomarkers of monocytes and as a bridge between SLE and tumors. We proposed that interferon-related signaling pathways might function as possible mediators of cancer risk in SLE.
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Affiliation(s)
- Huiting Chen
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
| | - Jinxuan He
- Department of Nephrology, Zhongshan Hospital of Xiamen University, Xiamen, China
- School of Medicine, Xiamen University, Xiamen, China
| | - Linwei Wang
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
| | - Yanbin Lin
- Department of Nephrology, Zhongshan Hospital of Xiamen University, Xiamen, China
- School of Medicine, Xiamen University, Xiamen, China
| | - Zhixiang Mou
- Department of Nephrology, Zhongshan Hospital of Xiamen University, Xiamen, China
- School of Medicine, Xiamen University, Xiamen, China
| | - Xiaoxuan Huang
- Department of Nephrology, Zhongshan Hospital of Xiamen University, Xiamen, China
- School of Medicine, Xiamen University, Xiamen, China
| | - Lan Chen
- The School of Clinical Medicine, Fujian Medical University, Fuzhou, China
- Department of Nephrology, Zhongshan Hospital of Xiamen University, Xiamen, China
- School of Medicine, Xiamen University, Xiamen, China
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7
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Tao Z, Jin Z, Wu J, Cai G, Yu X. Sirtuin family in autoimmune diseases. Front Immunol 2023; 14:1186231. [PMID: 37483618 PMCID: PMC10357840 DOI: 10.3389/fimmu.2023.1186231] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/15/2023] [Indexed: 07/25/2023] Open
Abstract
In recent years, epigenetic modifications have been widely researched. As humans age, environmental and genetic factors may drive inflammation and immune responses by influencing the epigenome, which can lead to abnormal autoimmune responses in the body. Currently, an increasing number of studies have emphasized the important role of epigenetic modification in the progression of autoimmune diseases. Sirtuins (SIRTs) are class III nicotinamide adenine dinucleotide (NAD)-dependent histone deacetylases and SIRT-mediated deacetylation is an important epigenetic alteration. The SIRT family comprises seven protein members (namely, SIRT1-7). While the catalytic core domain contains amino acid residues that have remained stable throughout the entire evolutionary process, the N- and C-terminal regions are structurally divergent and contribute to differences in subcellular localization, enzymatic activity and substrate specificity. SIRT1 and SIRT2 are localized in the nucleus and cytoplasm. SIRT3, SIRT4, and SIRT5 are mitochondrial, and SIRT6 and SIRT7 are predominantly found in the nucleus. SIRTs are key regulators of various physiological processes such as cellular differentiation, apoptosis, metabolism, ageing, immune response, oxidative stress, and mitochondrial function. We discuss the association between SIRTs and common autoimmune diseases to facilitate the development of more effective therapeutic strategies.
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Affiliation(s)
- Zhengjie Tao
- Science and Education Section, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
- Department of Ultrasonics, The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, China
| | - Zihan Jin
- Clinical Lab, Changzhou Second People’s Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Jiabiao Wu
- Department of Immunology, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Gaojun Cai
- Cardiology, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Xiaolong Yu
- Science and Education Section, Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
- Department of Ultrasonics, The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, China
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Hu Y, Zhang M, Liu B, Tang Y, Wang Z, Wang T, Zheng J, Zhang J. Honokiol prevents chronic cerebral hypoperfusion induced astrocyte A1 polarization to alleviate neurotoxicity by targeting SIRT3-STAT3 axis. Free Radic Biol Med 2023; 202:62-75. [PMID: 36997099 DOI: 10.1016/j.freeradbiomed.2023.03.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 03/11/2023] [Accepted: 03/20/2023] [Indexed: 04/01/2023]
Abstract
Alzheimer's Dementia (AD) and Vascular Dementia (VaD) are two main types of dementias for which no specific treatment is available. Chronic Cerebral Hypoperfusion (CCH) is a pathogenesis underlying AD and VaD that promotes neuroinflammatory responses and oxidative stress. Honokiol (HNK) is a natural compound isolated from magnolia leaves that can easily cross blood brain barrier and has anti-inflammatory and antioxidant effects. In the present study, the effects of HNK on astrocyte polarization and neurological damage in in vivo and in vitro models of chronic cerebral hypoperfusion were explored. We found that HNK was able to inhibit the phosphorylation and nuclear translocation of STAT3, A1 polarization, and reduce conditioned medium's neuronal toxicity of astrocyte under chronic hypoxia induced by cobalt chloride; STAT3 phosphorylation inhibitor C188-9 was able to mimic the above effects of HNK, suggesting that HNK may inhibit chronic hypoxia-induced A1 polarization in astrocytes via STAT3. SIRT3 inhibitor 3-TYP reversed, while Sirt3 overexpression mimicked the inhibitory effects of HNK on oxidative stress, STAT3 phosphorylation and nuclear translocation, A1 polarization and neuronal toxicity of astrocyte under chronic hypoxic conditions. For in vivo research, continuous intraperitoneal injection of HNK (1mg/kg) for 21 days ameliorated the decrease in SIRT3 activity and oxidative stress, inhibited astrocytic STAT3 nuclear translocation and A1 polarization, and prevented neuron and synaptic loss in the hippocampal of CCH rats. Besides, HNK application improved the spatial memory impairment of CCH rats, as assessed with Morris Water Maze. In conclusion, these results suggest that the phytochemical HNK can inhibit astrocyte A1 polarization via regulating SIRT3-STAT3 axis, thus improving CCH-induced neurological damage. These results highlight HNK as novel treatment for dementia with underlying vascular mechanisms.
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Affiliation(s)
- Yuan Hu
- Department of Neurology, Zhongnan Hospital of Wuhan University, Donghu Road No. 169, Wuhan, 430071, China.
| | - Miao Zhang
- Department of Neurology, Zhongnan Hospital of Wuhan University, Donghu Road No. 169, Wuhan, 430071, China
| | - Bihan Liu
- Department of Neurology, Zhongnan Hospital of Wuhan University, Donghu Road No. 169, Wuhan, 430071, China
| | - Yingying Tang
- Department of Neurology, Zhongnan Hospital of Wuhan University, Donghu Road No. 169, Wuhan, 430071, China
| | - Zhuo Wang
- Department of Neurology, Zhongnan Hospital of Wuhan University, Donghu Road No. 169, Wuhan, 430071, China
| | - Tao Wang
- Department of Neurology, First Clinical Medical College of China Three Gorges University, Yichang, Hubei, 443003, China
| | - Jiaxin Zheng
- Department of Neurology, Zhongnan Hospital of Wuhan University, Donghu Road No. 169, Wuhan, 430071, China
| | - Junjian Zhang
- Department of Neurology, Zhongnan Hospital of Wuhan University, Donghu Road No. 169, Wuhan, 430071, China.
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9
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Yang C, Zhao Y, Luo Z, Hu Y, Wang S, Hu S, Yao Y, Pan L, Shen C, Xu T. Honokiol Inhibits the Inflammatory Response and Lipid Metabolism Disorder by Inhibiting p38α in Alcoholic Liver Disease. PLANTA MEDICA 2023; 89:273-285. [PMID: 35714651 DOI: 10.1055/a-1878-3991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Alcoholic liver disease is one of the leading causes of liver-related morbidity and mortality worldwide, but effective treatments are still lacking. Honokiol, a lignin-type natural compound isolated from the leaves and bark of Magnolia plants, has been widely studied for its beneficial effects on several chronic diseases. Accumulating studies have revealed that honokiol displays a potential therapeutic effect on alcoholic liver disease. In this study, the protective activity of honokiol on alcoholic liver disease was confirmed due to its significant inhibitory activity on the expression levels of inflammatory cytokines (such as tumor necrosis factor-alpha, interleukin-6, and interleukin-1β) in EtOH-fed mice and in EtOH-induced AML-12 cells. Meanwhile, the expression of the lipid metabolic parameter sterol regulatory element-binding protein-1c was also reduced. However, peroxisome proliferator-activated receptor α was increased in animal and cell experiments, which indicates that the activity of honokiol was related to its regulated activity on lipid metabolism. The result showed that honokiol significantly inhibited the expression level of p38α in vivo and in vitro. Blocking p38α inhibited the expression levels of tumor necrosis factor-alpha, interleukin-6, interleukin-1β, and sterol regulatory element-binding protein-1c but promoted the expression level of peroxisome proliferator-activated receptor α compared with the honokiol-treated group. Moreover, the forced expression level of p38α further produced the opposite effect on inflammatory cytokines and lipid metabolism indicators. Furthermore, p38α has been related to the activation of the nuclear factor kappa B signaling pathway. In our study, honokiol significantly inhibited the activation of the nuclear factor kappa B signaling pathway mediated by p38α. In conclusion, the results suggest that honokiol might be an effective regulator of p38α by downregulating the nuclear factor kappa B signaling pathway, thereby reducing the inflammatory response and lipid metabolism disorder in alcoholic liver disease.
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Affiliation(s)
- Chenchen Yang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
- Affiliated Psychological Hospital of Anhui Medical University, Hefei Fourth People's Hospital, Hefei, China
| | - Yinglian Zhao
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
- Affiliated Psychological Hospital of Anhui Medical University, Hefei Fourth People's Hospital, Hefei, China
| | - Zhipan Luo
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
| | - Ying Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
| | - Shuxian Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
| | - Shuang Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
| | - Yan Yao
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
| | - Linxin Pan
- School of Life Sciences, Anhui Medical University, Hefei, China
| | - Chuanpu Shen
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Tao Xu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
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Honokiol suppresses the aberrant interactions between renal resident macrophages and tubular epithelial cells in lupus nephritis through the NLRP3/IL-33/ST2 axis. Cell Death Dis 2023; 14:174. [PMID: 36859530 PMCID: PMC9977833 DOI: 10.1038/s41419-023-05680-9] [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: 10/24/2022] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 03/03/2023]
Abstract
Lupus nephritis (LN) is a type of immune-complex nephritis caused by systemic lupus erythematosus and is a major contributor to mortality and morbidity. Honokiol (HNK) has been found to have a therapeutic effect on LN, but its action mechanism remains unclear. In this study, we first demonstrated that HNK attenuates kidney injury in MRL/lpr mice. Results from RNA sequencing combined with ingenuity pathway analysis suggested that HNK plays an anti-LN role through inhibition of the NLRP3 inflammasome and IL33. GEO chip data, single-cell data, and clinical samples from LN patients demonstrated that the pyroptosis and IL-33/ST2 pathways are abnormally activated during the stage of LN. In vivo, similar to the results of the AAV-mediated NLRP3 shRNA MRL/lpr model, HNK downregulated serum and renal IL-33 levels, and suppressed NLRP3 inflammasome and the IL-33/ST2 axis in the kidney. In vitro, co-culturing NLRP3-overexpressing or IL-33 knocked-down rat renal macrophages with NRK-52E cells confirmed that NLRP3 activation in resident macrophages directly upregulates IL-33, which in turn mediates the IL-33/ST2/NF-κB pathway to promote the inflammatory response of renal tubular epithelial cells. Furthermore, a molecular docking model and surface plasmon resonance analysis were utilized to demonstrate a direct interaction between HNK and NLRP3. In conclusion, this study provides a novel anti-LN treatment strategy in which HNK plays a preventive and therapeutic role against LN by suppressing the abnormal crosstalk between renal resident macrophages and renal tubular epithelial cells by inhibiting the activation of the NLRP3/IL-33/ST2 axis.
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Favor OK, Chauhan PS, Pourmand E, Edwards AM, Wagner JG, Lewandowski RP, Heine LK, Harkema JR, Lee KSS, Pestka JJ. Lipidome modulation by dietary omega-3 polyunsaturated fatty acid supplementation or selective soluble epoxide hydrolase inhibition suppresses rough LPS-accelerated glomerulonephritis in lupus-prone mice. Front Immunol 2023; 14:1124910. [PMID: 36875087 PMCID: PMC9978350 DOI: 10.3389/fimmu.2023.1124910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/17/2023] [Indexed: 02/18/2023] Open
Abstract
Introduction Lipopolysaccharide (LPS)-accelerated autoimmune glomerulonephritis (GN) in NZBWF1 mice is a preclinical model potentially applicable for investigating lipidome-modulating interventions against lupus. LPS can be expressed as one of two chemotypes: smooth LPS (S-LPS) or rough LPS (R-LPS) which is devoid of O-antigen polysaccharide sidechain. Since these chemotypes differentially affect toll-like receptor 4 (TLR4)-mediated immune cell responses, these differences may influence GN induction. Methods We initially compared the effects of subchronic intraperitoneal (i.p.) injection for 5 wk with 1) Salmonella S-LPS, 2) Salmonella R-LPS, or 3) saline vehicle (VEH) (Study 1) in female NZBWF1 mice. Based on the efficacy of R-LPS in inducing GN, we next used it to compare the impact of two lipidome-modulating interventions, ω-3 polyunsaturated fatty acid (PUFA) supplementation and soluble epoxide hydrolase (sEH) inhibition, on GN (Study 2). Specifically, effects of consuming ω-3 docosahexaenoic acid (DHA) (10 g/kg diet) and/or the sEH inhibitor 1-(4-trifluoro-methoxy-phenyl)-3-(1-propionylpiperidin-4-yl) urea (TPPU) (22.5 mg/kg diet ≈ 3 mg/kg/day) on R-LPS triggering were compared. Results In Study 1, R-LPS induced robust elevations in blood urea nitrogen, proteinuria, and hematuria that were not evident in VEH- or S-LPS-treated mice. R-LPS-treated mice further exhibited kidney histopathology including robust hypertrophy, hyperplasia, thickened membranes, lymphocytic accumulation containing B and T cells, and glomerular IgG deposition consistent with GN that was not evident in VEH- or SLPS-treated groups. R-LPS but not S-LPS induced spleen enlargement with lymphoid hyperplasia and inflammatory cell recruitment in the liver. In Study 2, resultant blood fatty acid profiles and epoxy fatty acid concentrations reflected the anticipated DHA- and TPPU-mediated lipidome changes, respectively. The relative rank order of R-LPS-induced GN severity among groups fed experimental diets based on proteinuria, hematuria, histopathologic scoring, and glomerular IgG deposition was: VEH/CON< R-LPS/DHA ≈ R-LPS/TPPU<<< R-LPS/TPPU+DHA ≈ R-LPS/CON. In contrast, these interventions had modest-to- negligible effects on R-LPS-induced splenomegaly, plasma antibody responses, liver inflammation, and inflammation-associated kidney gene expression. Discussion We show for the first time that absence of O-antigenic polysaccharide in R-LPS is critical to accelerated GN in lupus-prone mice. Furthermore, intervention by lipidome modulation through DHA feeding or sEH inhibition suppressed R-LPS-induced GN; however, these ameliorative effects were greatly diminished upon combining the treatments.
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Affiliation(s)
- Olivia K. Favor
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
| | - Preeti S. Chauhan
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
| | - Elham Pourmand
- Department of Chemistry, Michigan State University, East Lansing, MI, United States
| | - Angel M. Edwards
- Department of Chemistry, Michigan State University, East Lansing, MI, United States
| | - James G. Wagner
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Ryan P. Lewandowski
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Lauren K. Heine
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
| | - Jack R. Harkema
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Kin Sing Stephen Lee
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Chemistry, Michigan State University, East Lansing, MI, United States
| | - James J. Pestka
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, United States
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Yang J, Wang ZX, Fang L, Li TS, Liu ZH, Pan Y, Kong LD. Atractylodes lancea and Magnolia officinalis combination protects against high fructose-impaired insulin signaling in glomerular podocytes through upregulating Sirt1 to inhibit p53-driven miR-221. JOURNAL OF ETHNOPHARMACOLOGY 2023; 300:115688. [PMID: 36067838 DOI: 10.1016/j.jep.2022.115688] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/22/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In traditional Chinese medicine, a long term of improper diet causes the Dampness and disturbs Zang-Fu's functions including Kidney deficiency. Atractylodes lancea (Atr) and Magnolia officinalis (Mag) as a famous herb pair are commonly used to transform Dampness, with kidney protection. AIM OF THE STUDY To explore how Atr and Mag protected against insulin signaling impairment in glomerular podocytes induced by high dietary fructose feeding, a major contributor for insulin resistance in glomerular podocyte dysfunction. MATERIALS AND METHODS Liquid chromatography-tandem mass spectrometry (LC-MS/MS) analyze constituents of Atr and Mag. Rat model was induced by 10% fructose drinking water in vivo, and heat-sensitive human podocyte cells (HPCs) were exposed to 5 mM fructose in vitro. Animal or cultured podocyte models were treated with different doses of Atr, Mag or Atr and Mag combination. Western blot, qRT-PCR and immunofluorescence assays as well as other experiments were performed to detect adiponectin receptor protein 1 (AdipoR1), protein kinase B (AKT), Sirt1, p53 and miR-221 levels in rat glomeruli or HPCs, respectively. RESULTS Fifty-five components were identified in Atr and Mag combination. Network pharmacology analysis indicated that Atr and Mag combination might affect insulin signaling pathway. This combination significantly improved systemic insulin resistance and prevented glomerulus morphological damage in high fructose-fed rats. Of note, high fructose decreased IRS1, AKT and AdipoR1 in rat glomeruli and cultured podocytes. Further data from cultured podocytes with Sirt1 inhibitor/agonist, p53 agonist/inhibitor, or miR-221 mimic/inhibitor showed that high fructose downregulated Sirt1 to stimulate p53-driven miR-221, resulting in insulin signaling impairment. Atr and Mag combination effectively increased Sirt1, and decreased p53 and miR-221 in in vivo and in vitro models. CONCLUSIONS Atr and Mag combination improved insulin signaling in high fructose-stimulated glomerular podocytes possibly through upregulating Sirt1 to inhibit p53-driven miR-221. Thus, the regulation of Sirt1/p53/miR-221 by this combination may be a potential therapeutic approach in podocyte insulin signaling impairment.
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Affiliation(s)
- Jie Yang
- Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China
| | - Zi-Xuan Wang
- Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China
| | - Lei Fang
- Jiangsu Key Laboratory of Molecular Medicine & Chemistry and Biomedicine Innovation Center, Medical School, Nanjing University, Nanjing, PR China
| | - Tu-Shuai Li
- Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China
| | - Zhi-Hong Liu
- Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China
| | - Ying Pan
- Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China.
| | - Ling-Dong Kong
- Institute of Chinese Medicine, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing, PR China.
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Cai X, Jiang X, Zhao M, Su K, Tang M, Hong F, Ye N, Zhang R, Li N, Wang L, Xue L, Zhu Z, Chen L, Yang J, Wu W, Ye H. Identification of the target protein and molecular mechanism of honokiol in anti-inflammatory action. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 109:154617. [PMID: 36610140 DOI: 10.1016/j.phymed.2022.154617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/09/2022] [Accepted: 12/18/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Searching the targets of natural products is very important for drug discovery and elucidating the mechanism of drug action and disease. Honokiol (HK), as the major active component of Magnolia officinalis Rehder & E.H.Wilson, has been widely used in medicine and cosmetics. Among its bioactivities, its anti-inflammatory activity is particularly impressive. However, the target protein of HK in anti-inflammatory action and its regulatory mechanism are unclear. PURPOSE Here, we identified the target protein and molecular mechanism of the anti- inflammatory action of HK. METHODS First, an LPS-induced septic shock model and DSS-induced ulcerative colitis model were used to assess the anti-inflammatory efficacy of HK. Second, the drug affinity responsive target stability, proteomics analysis, thermal shift assays and cellular thermal shift assays were used to identify and validate the target of HK. Finally, western blot, ELISA, LDH immunofluorescence staining, shRNA and LC/MS for L-leucine analysis were performed to determine the mechanism of the anti-inflammatory action of HK. RESULTS This study revealed that HK significantly alleviated LPS-induced septic shock and DSS-induced ulcerative colitis in vivo, suggesting that HK has significant anti-inflammatory activity. HK treatment dramatically reduced IL-1β release and caspase-1 activation at different time points, showing that HK could inhibit both NLRP3 inflammasome priming and activation processes in cells. HK also suppressed adaptor apoptosis speck-like protein oligomerization. Mechanistically, SLC3A2 was identified as a direct target of HK in THP-1 cells. HK downregulated SLC3A2 expression by promoting its degradation via proteasome-mediated proteolysis. Further study demonstrated that HK triggered SLC3A2 to suppress NLRP3 inflammasome activation by significantly reducing the content of L-leucine transported into cells and lysosomes to block the mTORC1 pathway. CONCLUSIONS Our work identified HK as a promising anti-inflammatory drug candidate through the SLC3A2/L-leucine/mTORC1/NLRP3 pathways.
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Affiliation(s)
- Xiaoying Cai
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xueqin Jiang
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Min Zhao
- Laboratory of Metabolomics and Drug-induced Liver Injury, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Kaiyue Su
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Minghai Tang
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Feng Hong
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Neng Ye
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ruijia Zhang
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Na Li
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lun Wang
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Linlin Xue
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zejiang Zhu
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lijuan Chen
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jianhong Yang
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wenshuang Wu
- Department of Thyroid Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Laboratory of Thyroid and Parathyroid Disease, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Haoyu Ye
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Shi X, Chang M, Zhao M, Shi Y, Zhang Y. Traditional Chinese medicine compounds ameliorating glomerular diseases via autophagy: A mechanism review. Biomed Pharmacother 2022; 156:113916. [DOI: 10.1016/j.biopha.2022.113916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/22/2022] [Accepted: 10/24/2022] [Indexed: 11/29/2022] Open
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15
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Liu X, Gao L, Huang X, Deng R, Wei X, Lu J, Li S. Lipidomics reveals the potential mechanism of honokiol against adenine-induced chronic kidney disease. Front Pharmacol 2022; 13:1019629. [DOI: 10.3389/fphar.2022.1019629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/05/2022] [Indexed: 11/13/2022] Open
Abstract
Honokiol (HKL), a biphenolic compound, is derived from the bark of Magnolia officinalis, which is used in traditional Chinese medicine for gastrointestinal complaints. HKL has diverse pharmacological activities and has protective effects in various disease models. However, the role and mechanism of HKL in treating chronic kidney disease (CKD) remain unclear. This study was designed to investigate whether HKL can alleviate CKD and the potential mechanism by which it acts. Male Sprague-Dawley rats were fed 0.75% w/w adenine feed for 3 weeks to induce CKD. HKL was administered by gavage at a dose of 5 mg/kg/day for 4 weeks. Using a special kit, serum creatinine (Scr) and blood urea nitrogen (BUN) were measured. To assess renal pathology, periodic acid-Schiff and Masson’s trichrome staining were conducted. Renal lipid profiles were analyzed by ultra-high-performance liquid chromatography/mass spectrometry (UHPLC/MS). The results showed that the administration of HKL reduced Scr and BUN and alleviated renal tubular atrophy and tubulointerstitial fibrosis in an adenine-induced CKD rat model. By using lipidomics, we identified 113 lipids (47 lipids in negative ion mode, 66 lipids in positive ion mode) that could be significantly reversed by HKL treatment in CKD rat kidneys. Most of these lipids belonged to the phosphatidylcholine (PC), ceramide (Cer), phosphatidylethanolamine (PE), and triacylglycerol (TAG) classes. Moreover, HKL improved fatty acid oxidation in the kidneys of CKD rats. In conclusion, this study found that HKL can protect against adenine-induced CKD, possibly through the regulation of lipid metabolism.
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Liu T, Yang L, Mao H, Ma F, Wang Y, Li S, Li P, Zhan Y. Sirtuins as novel pharmacological targets in podocyte injury and related glomerular diseases. Biomed Pharmacother 2022; 155:113620. [PMID: 36122519 DOI: 10.1016/j.biopha.2022.113620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/10/2022] [Accepted: 08/27/2022] [Indexed: 11/29/2022] Open
Abstract
Podocyte injury is a major cause of proteinuria in kidney diseases, and persistent loss of podocytes leads to rapid irreversible progression of kidney disease. Sirtuins, a class of nicotinamide adenine dinucleotide-dependent deacetylases, can promote DNA repair, modify transcription factors, and regulate the cell cycle. Additionally, sirtuins play a critical role in renoprotection, particularly against podocyte injury. They also have pleiotropic protective effects on podocyte injury-related glomerular diseases, such as improving the immune inflammatory status and oxidative stress levels, maintaining mitochondrial homeostasis, enhancing autophagy, and regulating lipid metabolism. Sirtuins deficiency causes podocyte injury in different glomerular diseases. Studies using podocyte sirtuin-specific knockout and transgenic models corroborate this conclusion. Of note, sirtuin activators have protective effects in different podocyte injury-related glomerular diseases, including diabetic kidney disease, focal segmental glomerulosclerosis, membranous nephropathy, IgA nephropathy, and lupus nephritis. These findings suggest that sirtuins are promising therapeutic targets for preventing podocyte injury. This review provides an overview of recent advances in the role of sirtuins in kidney diseases, especially their role in podocyte injury, and summarizes the possible rationale for sirtuins as targets for pharmacological intervention in podocyte injury-related glomerular diseases.
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Affiliation(s)
- Tongtong Liu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Liping Yang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Huimin Mao
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Fang Ma
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuyang Wang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shen Li
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ping Li
- China-Japan Friendship Hospital, Institute of Medical Science, Beijing, China.
| | - Yongli Zhan
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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Liu T, Jin Q, Ren F, Yang L, Mao H, Ma F, Wang Y, Li P, Zhan Y. Potential therapeutic effects of natural compounds targeting autophagy to alleviate podocyte injury in glomerular diseases. Biomed Pharmacother 2022; 155:113670. [PMID: 36116248 DOI: 10.1016/j.biopha.2022.113670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 09/01/2022] [Accepted: 09/05/2022] [Indexed: 11/02/2022] Open
Abstract
Podocyte injury is a common cause of proteinuric kidney diseases. Uncontrollable progressive podocyte loss accelerates glomerulosclerosis and increases the risk of end-stage renal disease. To date, owing to the complex pathological mechanism, effective therapies for podocyte injury have been limited. Accumulating evidence supports the indispensable role of autophagy in the maintenance of podocyte homeostasis. A variety of natural compounds and their derivatives have been found to regulate autophagy through multiple targets, including promotes nuclear transfer of transcription factor EB and lysosomal repair. Here, we reviewed the recent studies on the use of natural compounds and their derivatives as autophagy regulators and discussed their potential applications in ameliorating podocyte injury. Several known natural compounds with autophagy-regulatory properties, such as quercetin, silibinin, kaempferol, and artemisinin, and their medical uses were also discussed. This review will help in improving the understanding of the podocyte protective mechanism of natural compounds and promote their development for clinical use.
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Affiliation(s)
- Tongtong Liu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qi Jin
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Feihong Ren
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Liping Yang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Huimin Mao
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Fang Ma
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuyang Wang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ping Li
- China-Japan Friendship Hospital, Institute of Medical Science, Beijing, China.
| | - Yongli Zhan
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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Wong WT, Wu CH, Li LH, Hung DY, Chiu HW, Hsu HT, Ho CL, Chernikov OV, Cheng SM, Yang SP, Chung CH, Hua KF, Wang CF. The leaves of the seasoning plant Litsea cubeba inhibit the NLRP3 inflammasome and ameliorate dextran sulfate sodium-induced colitis in mice. Front Nutr 2022; 9:871325. [PMID: 35967819 PMCID: PMC9363825 DOI: 10.3389/fnut.2022.871325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 07/04/2022] [Indexed: 11/22/2022] Open
Abstract
The intracellular sensor NACHT, LRR, and PYD domain-containing protein 3 (NLRP3) inflammasome controls caspase-1 activity and the maturation and release of the cytokines interleukin (IL)−1β and IL−18. The NLRP3 inflammasome has attracted the attention of the pharmaceutical industry because it promotes the pathogenesis of many diseases, making it a promising target for drug development. Litsea cubeba (Lour.) is a plant traditionally used as a seasoning in Taiwan and in other Asian countries. In this study, we investigated the inhibitory activity of the leaves of L. cubeba against the NLRP3 inflammasome. We found that the ethanol extract of L. cubeba leaves (MLE) inhibited the NLRP3 inflammasome in macrophages by reducing caspase−1 activation and IL−1β secretion. MLE reduced pyroptosis in macrophages and inhibited the release of NLRP3 and apoptosis-associated speck-like protein containing a CARD (ASC). In a mechanistic study, MLE reduced mitochondrial reactive oxygen species (ROS) production and preserved mitochondrial integrity, which led to reduced mitochondrial DNA release into the cytosol. MLE did not reduce the expression levels of NLRP3, IL−1β precursor or TNF-α in lipopolysaccharide (LPS)-activated macrophages. These results indicated that MLE inhibited the NLRP3 inflammasome by suppressing the activation signals of the NLRP3 inflammasome but not by reducing the priming signal induced by LPS. In addition, oral administration of MLE (20−80 mg/kg) ameliorated dextran sulfate sodium (DSS)−induced colitis in a mouse model. Notably, mice that received MLE (1 and 2 g/kg) daily for 7 days did not exhibit visible side effects. Gas chromatography-mass spectrometry (GC-MS) analysis found that α-Terpinyl acetate (27.2%) and 1,8−Cineole (17.7%) were the major compounds in MLE. These results indicated that L. cubeba leaves have the potential to be a nutraceutical for preventing and improving NLRP3 inflammasome-related diseases.
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Affiliation(s)
- Wei-Ting Wong
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Chun-Hsien Wu
- Division of Cardiology, Department of Internal Medicine, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Lan-Hui Li
- Department of Laboratory Medicine, Linsen, Chinese Medicine and Kunming Branch, Taipei City Hospital, Taipei, Taiwan.,Department of Pathology, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan
| | - De-Yu Hung
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Hsiao-Wen Chiu
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan
| | - Hsien-Ta Hsu
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan.,School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan
| | - Chen-Lung Ho
- Division of Wood Cellulose, Taiwan Forestry Research Institute, Taipei, Taiwan
| | - Oleg V Chernikov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry FEB RAS, Vladivostok, Russia
| | - Shu-Meng Cheng
- Division of Cardiology, Department of Internal Medicine, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Shih-Ping Yang
- Division of Cardiology, Department of Internal Medicine, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Chih-Hsin Chung
- Department of Forestry and Natural Resources, National Ilan University, Ilan, Taiwan
| | - Kuo-Feng Hua
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan.,Department of Pathology, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Chin-Fah Wang
- Center for General Education, National Ilan University, Ilan, Taiwan
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19
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Li Y, Liang C, Zhou X. The application prospects of honokiol in dermatology. Dermatol Ther 2022; 35:e15658. [PMID: 35726011 PMCID: PMC9541939 DOI: 10.1111/dth.15658] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 06/16/2022] [Indexed: 11/27/2022]
Abstract
Honokiol is one of the natural extracts of Magnolia officinalis. It is a small molecule, lipophilic compound with extensive biological effects. It has been used in the treatment of multisystem diseases, including digestive diseases, endocrine diseases, nervous system diseases, and various tumors. This paper reviews the biological effects of honokiol on the treatment of skin diseases in recent years, including anti-microbial, anti-oxidant, anti-inflammatory, anti-tumor, anti-fibrosis, anti-allergy, photo-protection, and immunomodulation. Most current researches are focused on the effects of anti-melanoma and photo-protection. Therefore, we summarized the specific mechanisms about these two effects. On the other side of treating skin diseases, the advantages of topical drugs cannot be replaced. As a small molecule fat-soluble compound, honokiol is suitable for external use. We reviewed the advantages and disadvantages of the topical mixed cream and various improved methods. These improvements include physical and chemical penetration enhancers, drug carriers, and chemical derivatives. In conclusion, honokiol has a wide range of effects, and its topical preparation provides a safe and effective way for treating skin diseases.
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Affiliation(s)
- Yao Li
- Institute of Dermatology and Venereology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology, Chengdu, China
| | - Chenglin Liang
- Institute of Dermatology and Venereology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology, Chengdu, China
| | - Xiyuan Zhou
- Institute of Dermatology and Venereology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology, Chengdu, China
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20
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Niu L, Hou Y, Jiang M, Bai G. The rich pharmacological activities of Magnolia officinalis and secondary effects based on significant intestinal contributions. JOURNAL OF ETHNOPHARMACOLOGY 2021; 281:114524. [PMID: 34400262 DOI: 10.1016/j.jep.2021.114524] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 08/01/2021] [Accepted: 08/13/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Magnolia officinalis Cortex (M. officinalis) is a traditional herbal drug widely used in Asian countries. Depending on its multiple biological activities, M. officinalis is used to regulate gastrointestinal (GI) motility, relieve cough and asthma, prevent cardiovascular and cerebrovascular diseases, and treat depression and anxiety. AIM OF THE REVIEW We aimed to review the abundant form of pharmacodynamics activity and potential mechanisms of action of M. officinalis and the characteristics of the internal processes of the main components. The potential mechanisms of local and distance actions of M. officinalis based on GI tract was provided, and it was used to reveal the interconnections between traditional use, phytochemistry, and pharmacology. MATERIALS AND METHODS Published literatures about M. officinalis and its main components were collected from several scientific databases, including PubMed, Elsevier, ScienceDirect, Google Scholar and Web of Science etc. RESULTS: M. officinalis was shown multiple effects including effects on digestive system, respiratory system, central system, which is consistent with traditional applications, as well as some other activities such as cardiovascular system, anticancer, anti-inflammatory and antioxidant effects and so on. The mechanisms of these activities are abundant. Its chief ingredients such as magnolol and honokiol can be metabolized into active metabolites in vivo, which can increase water solubility and bioavailability and exert pharmacological activity in the whole body. In the GI tract, M. officinalis and its main ingredient can regulate GI hormones and substance metabolism, protect the intestinal barrier and affect the gut microbiota (GM). These actions are effective to improve local discomfort and some distal symptoms such as depression, asthma, or metabolic disorders. CONCLUSIONS Although M. officinalis has rich pharmacological effects, the GI tract makes great contributions to it. The GI tract is not only an important place for absorption and metabolism but also a key site to help M. officinalis exert local and distal efficacy. Pharmacodynamical studies on the efficacies of distal tissues based on the contributions of the GI tract hold great potential for understanding the benefits of M. officinalis and providing new ideas for the treatment of important diseases.
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Affiliation(s)
- Lin Niu
- Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, People's Republic of China
| | - Yuanyuan Hou
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin, 300353, People's Republic of China
| | - Min Jiang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin, 300353, People's Republic of China
| | - Gang Bai
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin, 300353, People's Republic of China.
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21
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The Complex Interplay between Autophagy and NLRP3 Inflammasome in Renal Diseases. Int J Mol Sci 2021; 22:ijms222312766. [PMID: 34884572 PMCID: PMC8657456 DOI: 10.3390/ijms222312766] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/19/2021] [Accepted: 11/21/2021] [Indexed: 12/30/2022] Open
Abstract
Autophagy is a highly conserved process of the eukaryotic cell cycle. It plays an important role in the survival and maintenance of cells by degrading organelles, proteins, and macromolecules in the cytoplasm and the circulation of degraded products. The dysfunction of autophagy can lead to the pathology of many human diseases. The nucleotide-binding oligomerization domain-like receptor family, pyrin domain-containing 3 (NLRP3) inflammasome belongs to the family of nucleotide-binding and oligomerization domain-like receptors (NLRs) and can induce caspase-1 activation, thus leading to the maturation and secretion of interleukin-1beta (IL-1β) and IL-18. It has been reported that the interplay between autophagy and NLRP3 inflammasome is involved in many diseases, including renal diseases. In this review, the interplay between autophagy and the NLRP3 inflammasome and the mechanisms in renal diseases are explored to provide ideas for relevant basic research in the future.
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Tim-1 alleviates lupus nephritis-induced podocyte injury via regulating autophagy. Cent Eur J Immunol 2021; 46:305-313. [PMID: 34764802 PMCID: PMC8574111 DOI: 10.5114/ceji.2021.109827] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/13/2021] [Indexed: 12/21/2022] Open
Abstract
Introduction Lupus nephritis (LN) is a complication of systemic lupus erythematosus (SLE) which seriously threatens the health of people. Tim-1 is known to be associated with the pathogenesis of SLE. However, the role of Tim-1 in LN is still unclear. Aim of the study To explore the expression and the potential regulatory molecular mechanism of Tim-1 in LN-induced podocyte injury. Material and methods An in vivo model of LN was established to detect the expression of Tim-1, inflammatory cytokines and autophagy-related proteins. Podocytes were treated with immunoglobulin G (IgG) to establish the LN in vitro model and then treated with an autophagy inhibitor. RT-qPCR and western blot were performed to investigate the effect of Tim-1 on inflammatory responses as well as autophagy in podocytes. The function of Tim-1 in IgG-induced podocytes was detected by CCK-8 and flow cytometry, respectively. Results Tim-1, L3BII/L3BI ratio and inflammatory cytokines were upregulated in LN mice. Tim-1 notably inhibited IgG-induced inflammatory responses in podocytes via reducing tumor necrosis factor α (TNF-α), interleukin (IL)-6 and IL-1β expression, and it could protect podocytes against LN-induced injury via inducing autophagy. Meanwhile, Tim-1 significantly promoted the proliferation of IgG-induced podocytes via inhibiting apoptosis. The autophagy inhibitor reversed the effect of Tim-1 on inflammatory cytokines and autophagy-related proteins in IgG-treated podocytes. Conclusions Tim-1 protects podocytes against LN-induced injury via mediating autophagy, which might serve as a new target for the treatment of LN.
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Wen X, He B, Tang X, Wang B, Chen Z. Emodin inhibits the progression of acute pancreatitis via regulation of lncRNA TUG1 and exosomal lncRNA TUG1. Mol Med Rep 2021; 24:785. [PMID: 34498715 PMCID: PMC8441981 DOI: 10.3892/mmr.2021.12425] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 06/10/2021] [Indexed: 12/18/2022] Open
Abstract
Acute pancreatitis (AP) is one of the most frequent gastrointestinal diseases and has no specific treatment. It has been shown that dysfunction of pancreatic acinar cells can lead to AP progression. Emodin is a natural product, which can alleviate the symptoms of AP. However, the mechanism by which emodin regulates the function of pancreatic acinar cells remains unclear. Thus, the present study aimed to investigate the mechanism by which emodin modulates the function of pancreatic acinar cells. To mimic AP in vitro, pancreatic acinar cells were cotreated with caerulein and lipopolysaccharide (LPS). Exosomes were isolated using the ExoQuick precipitation kit. Western blot analysis, Nanosight Tracking analysis and transmission electron microscopy were performed to detect the efficiency of exosome separation. Gene expression was detected by reverse transcription‑quantitative PCR. The levels of IL‑1β and TNF‑α were detected by ELISA. The data indicated that emodin significantly decreased the levels of IL‑1β and TNF‑α in the supernatant samples derived from AR42J cells cotreated with caerulein and LPS. In addition, emodin significantly promoted the proliferation of AR42J cells cotreated with caerulein and LPS, and inhibited apoptosis, while the effect of emodin was reversed by long non‑coding (lnc)RNA taurine upregulated 1 (TUG1) overexpression. The expression level of TUG1 in AR42J cells or exosomes derived from AR42J cells was significantly increased following treatment of the cells with LPS and caerulein, while this effect was notably reversed by emodin treatment. In addition, exosomes derived from caerulein and LPS cotreated AR42J cells inhibited the differentiation and anti‑inflammatory function of regulatory T cells, while treatment of the cells with emodin significantly decreased this effect. In conclusion, the data indicated that emodin inhibited the induction of inflammation in AR42J cells by regulating the expression of cellular and exosomal lncRNA. Therefore, emodin may be used as a potential agent for the treatment of AP.
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Affiliation(s)
- Xiumei Wen
- Department of Gastroenterology, Liangzhu Hospital, Hangzhou, Zhejiang 311113, P.R. China
| | - Beihui He
- The Second Central Laboratory, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Xing Tang
- Department of Emergency, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310005, P.R. China
| | - Bin Wang
- Department of Emergency, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310005, P.R. China
| | - Zhiyun Chen
- The Second Central Laboratory, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
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24
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Zhang Y, Yang W, Li W, Zhao Y. NLRP3 Inflammasome: Checkpoint Connecting Innate and Adaptive Immunity in Autoimmune Diseases. Front Immunol 2021; 12:732933. [PMID: 34707607 PMCID: PMC8542789 DOI: 10.3389/fimmu.2021.732933] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022] Open
Abstract
Autoimmune diseases are a broad spectrum of human diseases that are characterized by the breakdown of immune tolerance and the production of autoantibodies. Recently, dysfunction of innate and adaptive immunity is considered to be a key step in the initiation and maintenance of autoimmune diseases. NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome is a multimeric protein complex, which can detect exogenous pathogen irritants and endogenous danger signals. The main function of NLRP3 inflammasome is to promote secretion of interleukin (IL)-1β and IL-18, and pyroptosis mediated by caspase-1. Served as a checkpoint in innate and adaptive immunity, aberrant activation and regulation of NLRP3 inflammasome plays an important role in the pathogenesis of autoimmune diseases. This paper reviewed the roles of NLRP3 inflammasome in autoimmune diseases, which shows NLRP3 inflammasome may be a potential target for autoimmune diseases deserved further study.
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Affiliation(s)
- Yiwen Zhang
- Department of Dermatology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wenlin Yang
- Department of Dermatology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wangen Li
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yunjuan Zhao
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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Huang J, An Q, Ju BM, Zhang J, Fan P, He L, Wang L. Role of vitamin D/VDR nuclear translocation in down-regulation of NF-κB/NLRP3/caspase-1 axis in lupus nephritis. Int Immunopharmacol 2021; 100:108131. [PMID: 34536747 DOI: 10.1016/j.intimp.2021.108131] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 08/20/2021] [Accepted: 09/02/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Vitamin D receptor (VDR) and NLRP3 inflammasome play critical roles in lupus nephritis (LN) pathogenesis. AIM OF THE STUDY This study explored the therapeutic effect of VDR agonist on LN and its molecular mechanism to inhibit NLRP3 signalling. METHODS C57BL/6 mice, lupus-prone MRL/lpr mice, and VDR agonist paricacitol-treated MRL/lpr mice (300 ng/kg/mouse per dose, 5 times/week for 8 weeks from 8 weeks old) were used to assess kidney histopathology and measure proteinuria, serum anti-ds-DNA antibody and expression of NF-κB/NLRP3/caspase-1/IL-1β/IL-18 axis. We used mouse renal tubular epithelial cells (mRTECs) to identify protein-protein interactions and examine the effects of paricalcitol. RESULTS AND CONCLUSION LN pathogenesis decreased after paricalcitol treatment. We observed a marked improvement in renal pathology and a time-dependent decrease urine protein and serum anti-dsDNA antibody levels. In 16-week-old MRL/lpr LN mice, the upregulated expression of NLRP3/caspase-1/IL-1β/IL-18 axis was significantly downregulated after paricalcitol treatment. Paricalcitol can reverse the apoptosis induced by anti-dsDNA antibody via the NF-κB/NLRP3/caspase-1/IL-1β/IL-18 axis in mRTECs. Furthermore, paricalcitol suppressed NF-κB nuclear translocation by competitively binding to importin-4. In summary, the VDR agonist can alleviate LN by modulating the NF-κB/NLRP3/caspase-1/IL-1β/IL-18 axis and suppressing the NF-κB nuclear translocation.
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Affiliation(s)
- Jing Huang
- Department of Rheumatism and Immunology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Qi An
- Department of Rheumatism and Immunology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Bo-Miao Ju
- Department of Rheumatism and Immunology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Jing Zhang
- Department of Rheumatism and Immunology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Ping Fan
- Department of Rheumatism and Immunology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Lan He
- Department of Rheumatism and Immunology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi, China
| | - Lei Wang
- The Second Affiliated Hospital of Xi'an Jiaotong University (Xibei Hospital), Xi'an 710004, Shaanxi, China.
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Xu Y, Sun L, Hu J, Xu S. Knockdown of hsa_circ_0001275 reverses dexamethasone-induced osteoblast growth inhibition via mediation of miR-377/CDKN1B axis. PLoS One 2021; 16:e0252126. [PMID: 34043680 PMCID: PMC8158950 DOI: 10.1371/journal.pone.0252126] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 05/10/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Osteoporosis affects the quality of life among middle-aged and elderly individuals. In addition, dysfunction of osteoblasts can lead to the progression of osteoporosis. Circular (circ)RNAs are involved in various types of diseases, including osteoporosis. Moreover, it has been reported that hsa_circ_0001275 expression is upregulated in osteoporosis. However, the effects of hsa_circ_0001275 on the growth of osteoblasts remain unclear. METHODS In the present study, the gene and protein expression levels in hFOB1.19 cells were detected via reverse transcription-quantitative (RT-qPCR) and western blot analyses, respectively. In addition, alkaline phosphatase (ALP) activity and calcium nodules were examined by ALP and alizarin red staining, respectively. Cell proliferation was measured using the Cell Counting Kit-8 assay. Cell apoptosis and cell cycle were analyzed by flow cytometry. Furthermore, dual luciferase reporter and RNA pull-down assay were used to confirm the association among hsa_circ_0001275, microRNA (miR)-377 and CDKN1B. RESULTS DEX-induced hFOB1.19 cell growth inhibition was significantly reversed by silencing hsa_circ_0001275. Moreover, DEX significantly increased ALP activity and calcium nodules in hFOB1.19 cells, while this effect was significantly reversed in the presence of hsa_circ_0001275 small interfering RNA. In addition, miR-377 was sponged by hsa_circ_0001275 and CDKN1B was directly targeted by miR-377 in hFOB1.19 cells. Furthermore, the therapeutic effect of hsa_circ_0001275 knockdown on osteoporosis was notably reversed by miR-377 antagomir. CONCLUSION The data demonstrated that knockdown of hsa_circ_0001275 reversed DEX-induced osteoblast growth inhibition via activation of the miR-377/CDKN1B axis. Therefore, this study might shed new lights on the treatment of osteoporosis.
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Affiliation(s)
- Yan Xu
- Department of Endocrinology, The First People’s Hospital of Fuyang District, Hangzhou, Zhejiang, China
- * E-mail:
| | - Liqin Sun
- Department of Endocrinology, The First People’s Hospital of Fuyang District, Hangzhou, Zhejiang, China
| | - Juncheng Hu
- Department of Endocrinology, The First People’s Hospital of Fuyang District, Hangzhou, Zhejiang, China
| | - Sai Xu
- Department of Endocrinology, The First People’s Hospital of Fuyang District, Hangzhou, Zhejiang, China
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Qiu Y, Zhou X, Liu Y, Tan S, Li Y. The Role of Sirtuin-1 in Immune Response and Systemic Lupus Erythematosus. Front Immunol 2021; 12:632383. [PMID: 33981300 PMCID: PMC8110204 DOI: 10.3389/fimmu.2021.632383] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/19/2021] [Indexed: 12/13/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a potentially fatal multisystem inflammatory chronic disorder, the etiology and pathogenesis of which remain unclear. The loss of immune tolerance in SLE patients contributes to the production of autoantibodies that attack multiple organs and tissues, such as the skin, joints, and kidneys. Immune cells play important roles in the occurrence and progression of SLE through amplified immune responses. Sirtuin-1 (SIRT1), an NAD+-dependent histone deacetylase, has been shown to be a pivotal regulator in various physiological processes, including cell differentiation, apoptosis, metabolism, aging, and immune responses, via modulation of different signaling pathways, such as the nuclear factor κ-light-chain-enhancer of activated B cells and activator protein 1 pathways. Recent studies have provided evidence that SIRT1 could be a regulatory element in the immune system, whose altered functions are likely relevant to SLE development. This review aims to illustrate the functions of SIRT1 in different types of immune cells and the potential roles of SIRT1 in the SLE pathogenesis and its therapeutic perspectives.
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Affiliation(s)
- Yueqi Qiu
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Xingyu Zhou
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Yu Liu
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Siqi Tan
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Yaping Li
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
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28
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Sun Z, Wang X, Xu Z. SIRT1 provides new pharmacological targets for polydatin through its role as a metabolic sensor. Biomed Pharmacother 2021; 139:111549. [PMID: 33901876 DOI: 10.1016/j.biopha.2021.111549] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 03/14/2021] [Accepted: 03/24/2021] [Indexed: 12/29/2022] Open
Abstract
The SIRT family of proteins constitutes highly conserved deacetylases with diverse and extensive functions. These proteins have specific biological functions, including regulation of transcription, cell cycle, cell differentiation, apoptosis, stress, metabolism, and genomic stability. Polydatin is a monocrystalline compound isolated from a Chinese herb, Polygonum cuspidatum. The pharmacological mechanisms of polydatin are mostly unclear but involve members of the SIRT protein family, among which SIRT1 plays a vital role. Polydatin is usually considered a potential SIRT1 activator. This review summarizes the signaling mechanism of polydatin involving SIRT1 and discusses the roles of related signal molecules such as PGC-1α, Nrf2, p38-MAPK, NLPR3 inflammasome, and p53. Further, we describe the metabolic regulation of related biological macromolecules and demonstrate that SIRT1, as a metabolic sensor, may act as a new pharmacological target for polydatin.
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Affiliation(s)
- Zhicheng Sun
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan, People's Republic of China; Hunan Engineering Laboratory of Advanced Artificial Osteo-Materials, Xiangya Hospital, Central South University, Changsha 410008, Hunan, People's Republic of China.
| | - Xiyang Wang
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan, People's Republic of China; Hunan Engineering Laboratory of Advanced Artificial Osteo-Materials, Xiangya Hospital, Central South University, Changsha 410008, Hunan, People's Republic of China.
| | - Zhenchao Xu
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan, People's Republic of China; Hunan Engineering Laboratory of Advanced Artificial Osteo-Materials, Xiangya Hospital, Central South University, Changsha 410008, Hunan, People's Republic of China.
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