1
|
Choi J, Kang J, Kim T, Nehs CJ. Sleep, mood disorders, and the ketogenic diet: potential therapeutic targets for bipolar disorder and schizophrenia. Front Psychiatry 2024; 15:1358578. [PMID: 38419903 PMCID: PMC10899493 DOI: 10.3389/fpsyt.2024.1358578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 01/29/2024] [Indexed: 03/02/2024] Open
Abstract
Bipolar disorder and schizophrenia are serious psychiatric conditions that cause a significant reduction in quality of life and shortened life expectancy. Treatments including medications and psychosocial support exist, but many people with these disorders still struggle to participate in society and some are resistant to current therapies. Although the exact pathophysiology of bipolar disorder and schizophrenia remains unclear, increasing evidence supports the role of oxidative stress and redox dysregulation as underlying mechanisms. Oxidative stress is an imbalance between the production of reactive oxygen species generated by metabolic processes and antioxidant systems that can cause damage to lipids, proteins, and DNA. Sleep is a critical regulator of metabolic homeostasis and oxidative stress. Disruption of sleep and circadian rhythms contribute to the onset and progression of bipolar disorder and schizophrenia and these disorders often coexist with sleep disorders. Furthermore, sleep deprivation has been associated with increased oxidative stress and worsening mood symptoms. Dysfunctional brain metabolism can be improved by fatty acid derived ketones as the brain readily uses both ketones and glucose as fuel. Ketones have been helpful in many neurological disorders including epilepsy and Alzheimer's disease. Recent clinical trials using the ketogenic diet suggest positive improvement in symptoms for bipolar disorder and schizophrenia as well. The improvement in psychiatric symptoms from the ketogenic diet is thought to be linked, in part, to restoration of mitochondrial function. These findings encourage further randomized controlled clinical trials, as well as biochemical and mechanistic investigation into the role of metabolism and sleep in psychiatric disorders. This narrative review seeks to clarify the intricate relationship between brain metabolism, sleep, and psychiatric disorders. The review will delve into the initial promising effects of the ketogenic diet on mood stability, examining evidence from both human and animal models of bipolar disorder and schizophrenia. The article concludes with a summary of the current state of affairs and encouragement for future research focused on the role of metabolism and sleep in mood disorders.
Collapse
Affiliation(s)
- Jinyoung Choi
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, United States
| | - Jiseung Kang
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, United States
| | - Tae Kim
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
| | - Christa J. Nehs
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
- Division of Sleep Medicine, Harvard Medical School, Boston, MA, United States
| |
Collapse
|
2
|
Wang W, He Z. Gasdermins in sepsis. Front Immunol 2023; 14:1203687. [PMID: 38022612 PMCID: PMC10655013 DOI: 10.3389/fimmu.2023.1203687] [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: 04/11/2023] [Accepted: 10/12/2023] [Indexed: 12/01/2023] Open
Abstract
Sepsis is a hyper-heterogeneous syndrome in which the systemic inflammatory response persists throughout the course of the disease and the inflammatory and immune responses are dynamically altered at different pathogenic stages. Gasdermins (GSDMs) proteins are pore-forming executors in the membrane, subsequently mediating the release of pro-inflammatory mediators and inflammatory cell death. With the increasing research on GSDMs proteins and sepsis, it is believed that GSDMs protein are one of the most promising therapeutic targets in sepsis in the future. A more comprehensive and in-depth understanding of the functions of GSDMs proteins in sepsis is important to alleviate the multi-organ dysfunction and reduce sepsis-induced mortality. In this review, we focus on the function of GSDMs proteins, the molecular mechanism of GSDMs involved in sepsis, and the regulatory mechanism of GSDMs-mediated signaling pathways, aiming to provide novel ideas and therapeutic strategies for the diagnosis and treatment of sepsis.
Collapse
Affiliation(s)
- Wenhua Wang
- Department of Intensive Care Unit, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhihui He
- Department of Intensive Care Unit, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Laboratory of Hunan Province, Central South University, Changsha, Hunan, China
| |
Collapse
|
3
|
Mentzelou M, Dakanalis A, Vasios GK, Gialeli M, Papadopoulou SK, Giaginis C. The Relationship of Ketogenic Diet with Neurodegenerative and Psychiatric Diseases: A Scoping Review from Basic Research to Clinical Practice. Nutrients 2023; 15:nu15102270. [PMID: 37242153 DOI: 10.3390/nu15102270] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/09/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND The ketogenic diet (KD) has become widespread for the therapy of epileptic pathology in childhood and adulthood. In the last few decades, the current re-emergence of its popularity has focused on the treatment of obesity and diabetes mellitus. KD also exerts anti-inflammatory and neuroprotective properties, which could be utilized for the therapy of neurodegenerative and psychiatric disorders. PURPOSE This is a thorough, scoping review that aims to summarize and scrutinize the currently available basic research performed in in vitro and in vivo settings, as well as the clinical evidence of the potential beneficial effects of KD against neurodegenerative and psychiatric diseases. This review was conducted to systematically map the research performed in this area as well as identify gaps in knowledge. METHODS We thoroughly explored the most accurate scientific web databases, e.g., PubMed, Scopus, Web of Science, and Google Scholar, to obtain the most recent in vitro and in vivo data from animal studies as well as clinical human surveys from the last twenty years, applying effective and characteristic keywords. RESULTS Basic research has revealed multiple molecular mechanisms through which KD can exert neuroprotective effects, such as neuroinflammation inhibition, decreased reactive oxygen species (ROS) production, decreased amyloid plaque deposition and microglial activation, protection in dopaminergic neurons, tau hyper-phosphorylation suppression, stimulating mitochondrial biogenesis, enhancing gut microbial diversity, restoration of histone acetylation, and neuron repair promotion. On the other hand, clinical evidence remains scarce. Most existing clinical studies are modest, frequently uncontrolled, and merely assess the short-term impacts of KD. Moreover, several clinical studies had large dropout rates and a considerable lack of compliance assessment, as well as an increased level of heterogeneity in the study design and methodology. CONCLUSIONS KD can exert substantial neuroprotective effects via multiple molecular mechanisms in various neurodegenerative and psychiatric pathological states. Large, long-term, randomized, double-blind, controlled clinical trials with a prospective design are strongly recommended to delineate whether KD may attenuate or even treat neurodegenerative and psychiatric disease development, progression, and symptomatology.
Collapse
Affiliation(s)
- Maria Mentzelou
- Department of Food Science and Nutrition, School of Environment, University of Aegean, 81400 Myrina, Greece
| | - Antonios Dakanalis
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Georgios K Vasios
- Department of Food Science and Nutrition, School of Environment, University of Aegean, 81400 Myrina, Greece
| | - Maria Gialeli
- Department of Food Science and Nutrition, School of Environment, University of Aegean, 81400 Myrina, Greece
| | - Sousana K Papadopoulou
- Department of Nutritional Sciences and Dietetics, School of Health Sciences, International Hellenic University, 57400 Thessaloniki, Greece
| | - Constantinos Giaginis
- Department of Food Science and Nutrition, School of Environment, University of Aegean, 81400 Myrina, Greece
| |
Collapse
|
4
|
Pei H, He Z, Du R, Han C, Sheng Y, Wang J, Zhou X, Li W, Cao C, Sheng J, Wang X. Imidacloprid activates Kupffer cells pyroptosis to induce liver injury in mice via P2X7. Int Immunopharmacol 2023; 119:110179. [PMID: 37099941 DOI: 10.1016/j.intimp.2023.110179] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 04/05/2023] [Accepted: 04/10/2023] [Indexed: 04/28/2023]
Abstract
AIM This work aimed to investigate the mechanism by which the environmental poison imidacloprid (IMI) induced liver injury. METHODS First of all, IMI at the ED50 = 100 μM was added to treat mouse liver Kupffer cells, thereafter, the occurrence of pyroptosis was detected by flow cytometry (FCM), transmission electron microscope (TEM), immunofluorescence staining, enzyme-linked immunosorbent assay (ELISA), RT-QPCT and Western-Blot (WB) assay. Furthermore, P2X7 expression was knocked out in Kupffer cells, and cells were treated with the P2X7 inhibitor, so as to observe the pyroptosis level induced by IMI after P2X7 suppression. In animal experiments, IMI was used to induce mouse liver injury, then the P2X7 inhibitor and pyroptosis inhibitor were added to treat the mice, respectively, so as to observe the effect on liver injury. RESULTS IMI induced Kupffer cell pyroptosis, P2X7 knockout or P2X7 inhibitor treatment suppressed the effect of IMI and reduced the pyroptosis level. In animal experiments, the application of both P2X7 inhibitor and pyroptosis inhibitor decreased the cell injury level. CONCLUSION IMI induces Kupffer cell pyroptosis via P2X7 and induce liver injury, and inhibiting the occurrence of pyroptosis can suppress the hepatotoxicity of IMI.
Collapse
Affiliation(s)
- Hongyan Pei
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Zhongmei He
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China.
| | - Rui Du
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China.
| | - Chenyang Han
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Yongjia Sheng
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Jin Wang
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Xiaohong Zhou
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Wenyan Li
- The Second Affiliated Hospital of Jiaxing University, 314001, China
| | - Chenxi Cao
- The Second Affiliated Hospital of Jiaxing University, 314001, China.
| | - Jian Sheng
- The Second Affiliated Hospital of Jiaxing University, 314001, China.
| | - Xiaoguang Wang
- The Second Affiliated Hospital of Jiaxing University, 314001, China.
| |
Collapse
|
5
|
Zhao P, Guan M, Tang W, Walayat N, Ding Y, Liu J. Structural diversity, fermentation production, bioactivities and applications of triterpenoids from several common medicinal fungi: Recent advances and future perspectives. Fitoterapia 2023; 166:105470. [PMID: 36914012 DOI: 10.1016/j.fitote.2023.105470] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 03/15/2023]
Abstract
Medicinal fungi are beneficial to human health and it reduces the risk of chronic diseases. Triterpenoids are polycyclic compounds derived from the straight-chain hydrocarbon squalene, which are widely distributed in medicinal fungi. Triterpenoids from medicinal fungal sources possess diverse bioactive activities such as anti-cancer, immunomodulatory, anti-inflammatory, anti-obesity. This review article describes the structure, fermentation production, biological activities, and application of triterpenoids from the medicinal fungi including Ganoderma lucidum, Poria cocos, Antrodia camphorata, Inonotus obliquus, Phellinus linteus, Pleurotus ostreatus, and Laetiporus sulphureus. Besides, the research perspectives of triterpenoids from medicinal fungi are also proposed. This paper provides useful guidance and reference for further research on medicinal fungi triterpenoids.
Collapse
Affiliation(s)
- Peicheng Zhao
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Meizhu Guan
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Wei Tang
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Noman Walayat
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yuting Ding
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jianhua Liu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China.
| |
Collapse
|
6
|
The Ketogenic Diet and Neuroinflammation: The Action of Beta-Hydroxybutyrate in a Microglial Cell Line. Int J Mol Sci 2023; 24:ijms24043102. [PMID: 36834515 PMCID: PMC9967444 DOI: 10.3390/ijms24043102] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/28/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023] Open
Abstract
The ketogenic diet (KD), a diet high in fat and protein but low in carbohydrates, is gaining much interest due to its positive effects, especially in neurodegenerative diseases. Beta-hydroxybutyrate (BHB), the major ketone body produced during the carbohydrate deprivation that occurs in KD, is assumed to have neuroprotective effects, although the molecular mechanisms responsible for these effects are still unclear. Microglial cell activation plays a key role in the development of neurodegenerative diseases, resulting in the production of several proinflammatory secondary metabolites. The following study aimed to investigate the mechanisms by which BHB determines the activation processes of BV2 microglial cells, such as polarization, cell migration and expression of pro- and anti-inflammatory cytokines, in the absence or in the presence of lipopolysaccharide (LPS) as a proinflammatory stimulus. The results showed that BHB has a neuroprotective effect in BV2 cells, inducing both microglial polarization towards an M2 anti-inflammatory phenotype and reducing migratory capacity following LPS stimulation. Furthermore, BHB significantly reduced expression levels of the proinflammatory cytokine IL-17 and increased levels of the anti-inflammatory cytokine IL-10. From this study, it can be concluded that BHB, and consequently the KD, has a fundamental role in neuroprotection and prevention in neurodegenerative diseases, presenting new therapeutic targets.
Collapse
|
7
|
Zhang HX, Li YY, Liu ZJ, Wang JF. Quercetin effectively improves LPS-induced intestinal inflammation, pyroptosis, and disruption of the barrier function through the TLR4/NF-κB/NLRP3 signaling pathway in vivo and in vitro. Food Nutr Res 2022; 66:8948. [PMID: 36793340 PMCID: PMC9899048 DOI: 10.29219/fnr.v66.8948] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/16/2022] [Accepted: 11/21/2022] [Indexed: 12/31/2022] Open
Abstract
Background Inflammatory bowel diseases are characterized by the alterations of the mucosa and gastrointestinal physiology, and the core of these alterations is endothelial cells. Quercetin is a flavonoid presents in some traditional Chinese medicine, plants, and fruits. Its protective effects in several gastrointestinal tumors have been demonstrated, but its effects on bacterial enteritis and pyroptosis-related diseases have rarely been studied. Objective This study aimed to evaluate the effect of quercetin on bacterial enteritis and pyroptosis. Design In vitro experiments were performed using rat intestinal microvascular endothelial cells divided into seven groups: control group (no treatment), model group (10 μg/mL lipopolysaccharide (LPS)+1 mM adenosine triphosphate [ATP]), LPS group (10 μg/mL LPS), ATP group (1 mM ATP), and treatment groups (10 μg/mL LPS+1 mM ATP and 5, 10, and 20 μM quercetin). The expression of pyroptosis-associated proteins, inflammatory factors, tight junction proteins, and the percentage of late apoptotic and necrotic cells were measured. In vivo analysis was performed using specific pathogen-free Kunming mice pretreated with quercetin and the water extract of Cacumen Platycladi for 2 weeks followed by 6 mg/kg LPS on day 15. Inflammation in the blood and intestinal pathological changes were evaluated. Results Quercetin used in vitro significantly reduced the expression of Toll-like receptor 4 (TLR4), NOD-like receptor 3 (NLRP3), caspase-1, gasdermin D, interleukin (IL)-1β, IL-18, IL-6, and tumor necrosis factor-α. It also inhibited phosphorylation of nuclear factor-kappa B (NF-κB) p65 and increased cell migration and the expression of zonula occludens 1 and claudins, while reduced the number of late apoptotic cells. The in vivo results showed that Cacumen Platycladi and quercetin significantly reduced inflammation, protected the structure of the colon and cecum, and prevent fecal occult blood induced by LPS. Conclusions These findings suggested the ability of quercetin to reduce inflammation induced by LPS and pyroptosis through TLR4/NF-κB/NLRP3 pathway.
Collapse
Affiliation(s)
| | | | - Zhong-Jie Liu
- Zhong-Jie Liu, Department of Veterinary Clinic Medicine, College of Veterinary Medicine, China Agricultural University, Beijing 100193, P. R. China.
| | - Jiu-Feng Wang
- Jiu-Feng Wang, Department of Veterinary Clinic Medicine College of Veterinary Medicine, China Agricultural University, Beijing 100193, P. R. China.
| |
Collapse
|
8
|
Ma M, Liang SC, Diao KY, Wang Q, He Y. Mitofilin Mitigates Myocardial Damage in Acute Myocardial Infarction by Regulating Pyroptosis of Cardiomyocytes. Front Cardiovasc Med 2022; 9:823591. [PMID: 35586659 PMCID: PMC9108246 DOI: 10.3389/fcvm.2022.823591] [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: 11/27/2021] [Accepted: 03/30/2022] [Indexed: 11/13/2022] Open
Abstract
Background Acute myocardial infarction (AMI) can lead to sudden cardiac death after prolonged ischemia or heart failure (HF) and impaired left ventricular pump function. However, the underlying mechanism remains largely unknown. The purpose of this study was to investigate the role of mitofilin in alleviating AMI. Methods Recombinant adenoviral vectors for mitofilin overexpression or mitofilin knockdown were constructed, respectively. A mouse AMI model was established and the effect of mitofilin on myocardial pyroptosis was examined by detecting the lactate dehydrogenase (LDH) level and inflammatory factors. Moreover, a cellular model of AMI was established by treating cardiomyocytes with hypoxia/reoxygenation (H/R). An enzyme-linked immunosorbent assay (ELISA) and a western blot analysis were used to detect the effect of mitofilin knockdown on the expression of pyroptosis-related factors. Furthermore, the regulatory role of mitofilin in PI3K/AKT pathway was evaluated by the western blot and PI3K inhibitor. Results Mitofilin was downregulated in the heart tissue of the AMI mice and H/R induced cardiomyocytes. The overexpression of mitofilin significantly alleviated AMI and reduced pyroptosis-related factors. Meanwhile, in cardiomyocytes, mitofilin knockdown aggravated cellular damages by promoting pyroptosis. Further analysis showed that the anti-pyroptotic effect of mitofilin was dependent on the activation of the PI3K/AKT signaling pathway. Conclusions Our study suggests that mitofilin regulates pyroptosis through the PI3K/AKT signaling pathway in cardiomyocytes to ameliorate AMI, which may serve as a therapeutic strategy for the management of AMI.
Collapse
Affiliation(s)
- Min Ma
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
- Department of Cardiology, The Sixth People's Hospital of Chengdu, Chengdu, China
| | - Shi-chu Liang
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Kai-yue Diao
- Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Qin Wang
- Department of Cardiology, The Sixth People's Hospital of Chengdu, Chengdu, China
| | - Yong He
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| |
Collapse
|
9
|
Huang C, Wang J, Liu H, Huang R, Yan X, Song M, Tan G, Zhi F. Ketone body β-hydroxybutyrate ameliorates colitis by promoting M2 macrophage polarization through the STAT6-dependent signaling pathway. BMC Med 2022; 20:148. [PMID: 35422042 PMCID: PMC9011974 DOI: 10.1186/s12916-022-02352-x] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 03/24/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Ketone body β-hydroxybutyrate (BHB) has received more and more attentions, because it possesses a lot of beneficial, life-preserving effects in the fields of clinical science and medicine. However, the role of BHB in intestinal inflammation has not yet been investigated. METHODS Colonic mucosa of inflammatory bowel disease (IBD) patients and healthy controls were collected for evaluation of BHB level. Besides, the therapeutic effect of exogenous BHB in a murine model of acute dextran sulfate sodium (DSS)-induced colitis were assessed by body weight change, colon length, disease activity index, and histopathological sections. The regulatory effectors of BHB were analyzed by RT-qPCR, immunofluorescence, and microbe analysis in vivo. Moreover, the molecular mechanism of BHB was further verified in bone marrow-derived macrophages (BMDMs). RESULTS In this study, significantly reduced BHB levels were found in the colonic mucosa from IBD patients and correlated with IBD activity index. In addition, we demonstrated that the administration of exogenous BHB alleviated the severity of acute experimental colitis, which was characterized by less weight loss, disease activity index, colon shortening, and histology scores, as well as decreased crypt loss and epithelium damage. Furthermore, BHB resulted in significantly increased colonic expression of M2 macrophage-associated genes, including IL-4Ra, IL-10, arginase 1 (Arg-1), and chitinase-like protein 3, following DSS exposure, suggesting an increased M2 macrophage skewing in vivo. Moreover, an in vitro experiment revealed that the addition of BHB directly promoted STAT6 phosphorylation and M2 macrophage-specific gene expression in IL-4-stimulated macrophages. Besides, we found that BHB obviously increased M2 macrophage-induced mucosal repair through promoting intestinal epithelial proliferation. However, the enhancement effect of BHB on M2 macrophage-induced mucosal repair and anti-inflammation was completely inhibited by the STAT6 inhibitor AS1517499. CONCLUSIONS In summary, we show that BHB promotes M2 macrophage polarization through the STAT6-dependent signaling pathway, which contributes to the resolution of intestinal inflammation and the repair of damaged intestinal tissues. Our finding suggests that exogenous BHB supplement may be a useful therapeutic approach for IBD treatment.
Collapse
Affiliation(s)
- Chongyang Huang
- Guangdong Provincial Key Laboratory of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jun Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Hongbin Liu
- Guangdong Provincial Key Laboratory of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Ruo Huang
- Guangdong Provincial Key Laboratory of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Xinwen Yan
- Guangdong Provincial Key Laboratory of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Mengyao Song
- Guangdong Provincial Key Laboratory of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Gao Tan
- Guangdong Provincial Key Laboratory of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Fachao Zhi
- Guangdong Provincial Key Laboratory of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| |
Collapse
|
10
|
Lv S, Lei Z, Yan G, Shah SA, Ahmed S, Sun T. Chemical compositions and pharmacological activities of natural musk (Moschus) and artificial musk: A review. JOURNAL OF ETHNOPHARMACOLOGY 2022; 284:114799. [PMID: 34748869 DOI: 10.1016/j.jep.2021.114799] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/22/2021] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Natural musk (Moschus), derived naturally from male musk deer (Moschus berezovskii Flerov, Moschus sifanicus Przewalski, or Moschus moschiferus Linnaeus), has long been an important component of traditional Chinese medicine (TCM), and was used as resuscitation, blood circulation, and collateral drainage. detumescence and pain relief. Artificial musk was researched and applied into TCM as natural musk being as unsustainable resources. AIM OF THE STUDY We mainly summarized chemical compositions, pharmacological activities and mechanism of action of natural and artificial musk, and designed to serve as a foundation for further research into musk chemical compositions and pharmacological effect. MATERIALS AND METHODS Those mainstream scientific databases including Google Scholar, ScienceDirect, SpringerLink, CNKI, Wiley Online Library, web of science, were used for searching with below "Keywords", as well as literature-tracking. Literatures spanned 1962 to 2021, and involved into Chinese, English, Janpanese, Korean. RESULTS Natural musk contains some very desirable but scarce compounds, as well as their biological features, which led to the development of artificial musk. The chemical ingredients, pharmacological activities, and mechanisms of action of natural and artificial musk are summarized and compared in this paper. Polypeptide and protein, muscone, musclide, steroids, muscopyridine, and other chemical constituents of musk demonstrated important therapeutic properties against inflammation, immune system disorders, neurological disorders, cardiovascular system disorders, and so on. The mechanism of action contributed to effect on mediators, acceptors and relative signal pathways. CONCLUSIONS Natural and artificial musk were revealed having some activated compounds, and showed excellent pharmacological effect. Meantime, above two sides of natural and artificial musk ought to get further research.
Collapse
Affiliation(s)
- Shuquan Lv
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China; School of Environmental and Biological Engineering, Wuhan Technology and Business University, NO. 3 Huangjiahu West Road, Wuhan 430065, PR China; School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Zhixin Lei
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China; School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China.
| | - Ge Yan
- School of Environmental and Biological Engineering, Wuhan Technology and Business University, NO. 3 Huangjiahu West Road, Wuhan 430065, PR China
| | - Sayed Afzal Shah
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, 46000, Pakistan
| | - Saeed Ahmed
- Department of Biological Sciences, National University of Medical Sciences, Rawalpindi, 46000, Pakistan
| | - Taolei Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China; School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China.
| |
Collapse
|
11
|
Isoliquiritigenin alleviates P. gingivalis-LPS/ATP-induced pyroptosis by inhibiting NF-κB/ NLRP3/GSDMD signals in human gingival fibroblasts. Int Immunopharmacol 2021; 101:108338. [PMID: 34794890 DOI: 10.1016/j.intimp.2021.108338] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/18/2021] [Accepted: 10/30/2021] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To investigate whether pyroptosis is induced by Porphyromonas gingivalis-lipopolysaccharide (P. gingivalis-LPS)/ adenosine triphosphate (ATP) through NF-κB/NLRP3/GSDMD signaling in human gingival fibroblasts (HGFs) and whether isoliquiritigenin (ISL) alleviates pyroptosis by inhibition of NF-κB/NLRP3/GSDMD signals. DESIGN Periodontitis was optimally simulated using a combination of P. gingivalis-LPS and ATP. The expression levels of genes and proteins of NF-κB, NLRP3 inflammasome, GSDMD, and IL-1β was characterized by qRT-PCR, western blotting and ELISA. The 2',7'‑dichlorodihydrofluorescein diacetate fluorescence probe was used to determine the intracellular ROS level. Hoechst 33342 and PI double staining, cytotoxicity assay, and caspase-1 activity assay were used to confirm the influence of ISL on pyroptosis in P. gingivalis-LPS/ATP-treated HGFs. RESULTS P. gingivalis-LPS/ATP stimulation significantly promoted expression of NF-κB, the NLRP3 inflammasome, GSDMD, and IL-1β at gene and protein levels. The proportion of membrane-damaged cells, caspase-1 activity, and the release of lactate dehydrogenase (LDH) were also elevated. However, pretreatment with ISL observably suppressed these effects. CONCLUSIONS P. gingivalis-LPS/ATP induced pyroptosis in HGFs by activating NF-κB/NLRP3/GSDMD signals and ISL attenuated P. gingivalis-LPS/ATP-induced pyroptosis by inhibiting these signals. This evidence may provide a new direction for the treatment of periodontitis.
Collapse
|
12
|
De Nuccio F, Cianciulli A, Porro C, Kashyrina M, Ruggiero M, Calvello R, Miraglia A, Nicolardi G, Lofrumento DD, Panaro MA. Inflammatory Response Modulation by Vitamin C in an MPTP Mouse Model of Parkinson's Disease. BIOLOGY 2021; 10:biology10111155. [PMID: 34827148 PMCID: PMC8614932 DOI: 10.3390/biology10111155] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/02/2021] [Accepted: 11/04/2021] [Indexed: 12/15/2022]
Abstract
Simple Summary Vitamin C (Vit C), also called ascorbic acid, is a nutrient present in many foods, particularly citrus fruits and green vegetables. Inadequate dietary Vit C intake causes hypovitaminosis resulting in the risk of developing clinical scurvy, potentially fatal if untreated. Vit C represents one of the safest and most essential nutrients, with antioxidant and anti-inflammatory properties that protect living organisms against oxidative stress; due to this propriety, it is studied for applications in the prevention and management of different pathologies, including neurodegenerative disease. Persistent neuroinflammation is detrimental for the brain and may lead to pathogenesis and progression of neurodegenerative diseases like Parkinson’s disease (PD) and Alzheimer’s disease. The role of Vit C in the central nervous system is still debated.This study, utilizing a PD mouse model, has demonstrated that Vit C reduces neuroinflammation by the modulation of microglial responses and astrocyte activation, reducing dopaminergic neuronal cell loss involved in PD insurgence.Furthermore, mouse gait and spontaneous locomotor activity were partially ameliorated. In summary, we have demonstrated that the use of Vit C has neuroprotective effects in the brain, alleviating the inflammatory cascade and reducing the progression of PD. Abstract Vitamin C (Vit C) is anutrient present in many foods, particularly citrus fruits, green vegetables, tomatoes, and potatoes. Vit C is studied for its applications in the prevention and management of different pathologies, including neurodegenerative diseases. Neuroinflammation is a defense mechanism activated by a stimulus or an insult that is aimed at the preservation of the brain by promoting tissue repair and removing cellular debris; however, persistent inflammatory responses are detrimental and may lead to the pathogenesis and progression of neurodegenerative diseases like Parkinson’s disease (PD) and Alzheimer’s disease. PD is one of the most common chronic progressive neurodegenerative disorders, and oxidative stress is one of the most important factors involved in its pathogenesis and progression.Due to this, research on antioxidant and anti-inflammatory compounds is an important target for counteracting neurodegenerative diseases, including PD. In the central nervous system, the presence of Vit C in the brain is higher than in other body districts, but why and how this occurs is still unknown. In this research, Vit C, with its anti-inflammatory and anti-oxidative properties, is studied to better understand its contribution to brain protection; in particular, we have investigated the neuroprotective effects of Vit C in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced animal model of PD and its role in the modulation of neuroinflammation. First, we observed that Vit C significantly decreased the MPTP-induced loss of tyrosine hydroxylase (TH)-positive dopaminergic neuronal cells in the substantia nigra, as well as microglial cell activation and astrogliosis. Furthermore, gait and spontaneous locomotor activity, evaluated by an automated treadmill and the Open Field test, respectively, were partially ameliorated by Vit C treatment in MPTP-intoxicated animals. In relation to neuroinflammation, results show that Vit C reduced the protein and mRNA expression of inflammatory cytokines such as IL-6, TLR4, TNF-α, iNOS, and CD40, while anti-inflammatory proteins such as IL-10, CD163, TGF-β, and IL-4 increased. Interestingly, we show for the first time that Vit C reduces neuroinflammation by modulating microglial polarization and astrocyte activation. Moreover, Vit C was able to reduce NLRP3 activation, which is linked to the pathogenesis of many inflammatory diseases, including neuroinflammatory disorders. In conclusion, our study provides evidence that Vit C may represent a new promising dietary supplement for the prevention and alleviation of the inflammatory cascade of PD, thus contributing to neuroprotection.
Collapse
Affiliation(s)
- Francesco De Nuccio
- Department of Biological and Environmental Sciences and Technologies, Section of Human Anatomy, University of Salento, I-73100 Lecce, Italy; (F.D.N.); (M.K.); (A.M.); (G.N.)
| | - Antonia Cianciulli
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, I-70125 Bari, Italy; (A.C.); (M.R.); (R.C.); (M.A.P.)
| | - Chiara Porro
- Department of Clinical and Experimental Medicine, University of Foggia, I-71100 Foggia, Italy;
| | - Marianna Kashyrina
- Department of Biological and Environmental Sciences and Technologies, Section of Human Anatomy, University of Salento, I-73100 Lecce, Italy; (F.D.N.); (M.K.); (A.M.); (G.N.)
| | - Melania Ruggiero
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, I-70125 Bari, Italy; (A.C.); (M.R.); (R.C.); (M.A.P.)
| | - Rosa Calvello
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, I-70125 Bari, Italy; (A.C.); (M.R.); (R.C.); (M.A.P.)
| | - Alessandro Miraglia
- Department of Biological and Environmental Sciences and Technologies, Section of Human Anatomy, University of Salento, I-73100 Lecce, Italy; (F.D.N.); (M.K.); (A.M.); (G.N.)
| | - Giuseppe Nicolardi
- Department of Biological and Environmental Sciences and Technologies, Section of Human Anatomy, University of Salento, I-73100 Lecce, Italy; (F.D.N.); (M.K.); (A.M.); (G.N.)
| | - Dario Domenico Lofrumento
- Department of Biological and Environmental Sciences and Technologies, Section of Human Anatomy, University of Salento, I-73100 Lecce, Italy; (F.D.N.); (M.K.); (A.M.); (G.N.)
- Correspondence:
| | - Maria Antonietta Panaro
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, I-70125 Bari, Italy; (A.C.); (M.R.); (R.C.); (M.A.P.)
| |
Collapse
|
13
|
Ruan S, Han C, Sheng Y, Wang J, Zhou X, Guan Q, Li W, Zhang C, Yang Y. Antcin A alleviates pyroptosis and inflammatory response in Kupffercells of non-alcoholic fatty liver disease by targeting NLRP3. Int Immunopharmacol 2021; 100:108126. [PMID: 34492534 DOI: 10.1016/j.intimp.2021.108126] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/27/2021] [Accepted: 08/31/2021] [Indexed: 01/22/2023]
Abstract
Pyroptosis, a pattern of inflammatory death, is regulated by NLRP3-Caspase-1 inflammasome and GSDMD-FL protein. Antcin A is a small triterpenoid molecule. In this study, Kupffer cells (KC) were used for in vitro model, which were treated with LPS and Nigericin (L/N) to induce pyroptosis. ELISA was used to determine the influence of Antcin A on the expression of inflammatory factors, IF was utilized to investigate NLRP3 and Caspase-1, PI staining was used to detect the opening level of membrane pores in KCs, C57BL/6J wild-type mice were fed with high-fat diet to construct a NAFLD model, and were simultaneously treated with Antcin A. H&E staining was used to detect hepatic pathological changes in mice, oil red staining was utilized to detect hepatic fat deposits in mice, IHC was used to detect the expression of NLRP3 and Caspase-1, Western blot was used to detect the expression levels of NLRP3 inflammasome (including NLRP3, ASC, Caspase-1, GSDMD-FL and GSDMD-NT). Pull-down assay and immunoprecipitation assay were used to detect the binding between Antcin A and NLRP3. As a result, Antcin A could significantly inhibit the occurrence of pyrolysis, decrease the expression of inflammatory factors, inhibit the activation and assembly of NLRP3 inflammasome, and significantly down-regulate the expression of NLRP3, Caspase-1 and GSDMD-NT in KCs. In NAFLD mice, Antcin A could suppress the inflammatory response in liver tissues of mice, reduce lipid deposition, down-regulate the levels of ALT and AST, and improve liver function in mice. Antcin A could also inhibit the activation of NLRP3 inflammasome in liver tissue and decrease the level of inflammatory factors. In the study of mechanism, we revealed that Antcin A could inhibit the assembly and activation of NLRP3 inflammasome by binding with NLRP3. In summary, in this study, we found that Antcin A could inhibit pyroptosis in KC and alleviate the inflammatory response of liver tissue in NAFLD by targeting NLRP3 inflammasome, which was one of the mechanisms of Anctin A in protecting liver.
Collapse
Affiliation(s)
- Shuiliang Ruan
- Department of Center Laboratory, The Second Affiliated Hospital of Jiaxing University, China
| | - Chenyang Han
- Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, China
| | - Yongjia Sheng
- Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, China
| | - Jin Wang
- Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, China
| | - Xiaohong Zhou
- Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, China
| | - Qiaobing Guan
- Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, China
| | - Wenyan Li
- Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, China
| | - Caiqun Zhang
- Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, China.
| | - Yi Yang
- Department of Pharmacy, The Second Affiliated Hospital of Jiaxing University, China.
| |
Collapse
|
14
|
Pizzicannella J, Fonticoli L, Guarnieri S, Marconi GD, Rajan TS, Trubiani O, Diomede F. Antioxidant Ascorbic Acid Modulates NLRP3 Inflammasome in LPS-G Treated Oral Stem Cells through NFκB/Caspase-1/IL-1β Pathway. Antioxidants (Basel) 2021; 10:antiox10050797. [PMID: 34069836 PMCID: PMC8157377 DOI: 10.3390/antiox10050797] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/07/2021] [Accepted: 05/12/2021] [Indexed: 12/12/2022] Open
Abstract
Human gingival mesenchymal stem cells (hGMSCs) and endothelial committed hGMSCs (e-hGMSCs) have considerable potential to serve as an in vitro model to replicate the inflammation sustained by Porphyromonas gingivalis in periodontal and cardiovascular diseases. The present study aimed to investigate the effect of ascorbic acid (AA) on the inflammatory reverting action of lipopolysaccharide (LPS-G) on the cell metabolic activity, inflammation pathway and reactive oxygen species (ROS) generation in hGMSCs and e-hGMSCs. Cells were treated with LPS-G (5 μg mL−1) or AA (50 μg mL−1) and analyzed by 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide (MTT) assay, immunofluorescence and Western blot methods. The rate of cell metabolic activity was decreased significantly in LPS-G-treated groups, while groups co-treated with LPS-G and AA showed a logarithmic cell metabolic activity rate similar to untreated cells. AA treatment attenuated the inflammatory effect of LPS-G by reducing the expression of TLR4/MyD88/NFκB/NLRP3/Caspase-1/IL-1β, as demonstrated by Western blot analysis and immunofluorescence acquisition. LPS-G-induced cells displayed an increase in ROS production, while AA co-treated cells showed a protective effect. In summary, our work suggests that AA attenuated LPS-G-mediated inflammation and ROS generation in hGMSCs and e-hGMSCs via suppressing the NFκB/Caspase-1/IL-1β pathway. These findings indicate that AA may be considered as a potential factor involved in the modulation of the inflammatory pathway triggered by LPS-G in an vitro cellular model.
Collapse
Affiliation(s)
| | - Luigia Fonticoli
- Department of Innovative Technologies in Medicine & Dentistry, University “G. d’Annunzio” Chieti-Pescara, via dei Vestini, 31, 66100 Chieti, Italy; (L.F.); (O.T.)
| | - Simone Guarnieri
- Department of Neuroscience, Imaging and Clinical Sciences, Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” Chieti-Pescara, via dei Vestini, 31, 66100 Chieti, Italy;
| | - Guya D. Marconi
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti-Pescara, via dei Vestini, 31, 66100 Chieti, Italy;
| | | | - Oriana Trubiani
- Department of Innovative Technologies in Medicine & Dentistry, University “G. d’Annunzio” Chieti-Pescara, via dei Vestini, 31, 66100 Chieti, Italy; (L.F.); (O.T.)
| | - Francesca Diomede
- Department of Innovative Technologies in Medicine & Dentistry, University “G. d’Annunzio” Chieti-Pescara, via dei Vestini, 31, 66100 Chieti, Italy; (L.F.); (O.T.)
- Correspondence: ; Tel.: +39-08713554080
| |
Collapse
|
15
|
Wang J, Yuan X, Ding N. IGF2BP2 knockdown inhibits LPS-induced pyroptosis in BEAS-2B cells by targeting caspase 4, a crucial molecule of the non-canonical pyroptosis pathway. Exp Ther Med 2021; 21:593. [PMID: 33884031 PMCID: PMC8056110 DOI: 10.3892/etm.2021.10025] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 03/01/2021] [Indexed: 12/29/2022] Open
Abstract
Insulin-like growth factor 2 (IGF2) mRNA-binding protein 2 (IGF2BP2) is a secreted protein that can bind to IGF2 and has been reported to promote inflammation. The data from the ENCORI database have predicted that IGF2BP2 can bind caspase 4, which mediates pyroptosis and promotes airway inflammation and lipopolysaccharide (LPS)-induced lung injury. The present study investigated whether IGF2BP2 can regulate LPS-induced lung cell inflammation by targeting caspase 4. Therefore, the non-tumorigenic lung epithelial cell line Beas-2B was transfected with short hairpin RNA (shRNA)-IGF2BP2 and stimulated with LPS. A number of parameters, including cell viability, production of interleukin (IL)-1β and IL-18, activation of gasdermin D (GSDMD) and the expression levels of IGF2BP2, caspase 4 and cleaved-caspase 1, were subsequently assessed using CCK-8, ELISA kits, western blotting and immunofluorescence staining, respectively. RNA pull-down assay was used to probe the possible interaction between IGF2BP2 and caspase 4 RNA. LPS treatment was found to inhibit cell viability, trigger IL-1β and IL-18 production and increase IGF2BP2 expression in a concentration-dependent manner. Compared with cells transfected with shRNA-negative control, cells that were transfected with shRNA-IGF2BP2 exhibited enhanced cell viability, reduced IL-1β and IL-18 concentrations, decreased GSDMD activation in addition to reduced expression levels of caspase 4 and cleaved-caspase 1 following stimulation with 1 µg/ml LPS. Concomitantly, the effects of IGF2BP2 silencing on caspase 4 expression were higher compared with those noted on caspase 1. In addition, binding of IGF2BP2 to caspase 4 RNA was also observed. To conclude, data from the present study suggest that IGF2BP2 knockdown inhibited LPS-induced Beas-2B cell inflammation by targeting caspase 4, thereby inhibiting the non-canonical pyroptosis pathway.
Collapse
Affiliation(s)
- Jing Wang
- Department of Emergency Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P.R. China
| | - Xiaoli Yuan
- Department of Emergency Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P.R. China
| | - Ning Ding
- Department of Emergency Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, P.R. China
| |
Collapse
|
16
|
Yang K, Xu S, Zhao H, Liu L, Lv X, Hu F, Wang L, Ji Q. Hypoxia and Porphyromonas gingivalis-lipopolysaccharide synergistically induce NLRP3 inflammasome activation in human gingival fibroblasts. Int Immunopharmacol 2021; 94:107456. [PMID: 33588175 DOI: 10.1016/j.intimp.2021.107456] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 01/13/2021] [Accepted: 01/28/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To investigate the effects of hypoxia and Porphyromonas gingivalis- lipopolysaccharide (P. gingivalis-LPS) on activation of the NACHT leucine-rich repeat protein 3 (NLRP3) inflammasome in human gingival fibroblasts (HGFs). DESIGN Periodontitis was optimally simulated using a hypoxic concentration of 1%. HGFs were stimulated using P. gingivalis-LPS (1.0 μg/ml) in normoxia and hypoxia for 3 h and 6 h, respectively. The expression levels of genes and proteins of hypoxia-inducible factor-1α (HIF-1α), interleukin-1β, gasdermin D (GSDMD) and the NLRP3 inflammasome, including NLRP3, apoptosis-associated speck-like protein containing CARD (ASC), caspase-1 and its activated forms, were measured using quantitative real-time polymerase chain reaction and western blot. ELISA was used to detect and determine levels of the inflammatory factor interleukin-1β in cell supernatants. Lactate dehydrogenase (LDH) release assay, caspase-1 activity assay and Hoechst 33342/Propidium Iodide (PI) staining were performed to further verify the presence of pyroptosis. RESULTS The NLRP3 inflammasome (i.e., NLRP3, ASC, caspase-1) was not affected by individual stimulation using P. gingivalis-LPS or hypoxia. However, the combination of both hypoxia and P. gingivalis-LPS stimulation significantly enhanced inflammasome activation and promoted the expression of interleukin-1β, gasdermin D and HIF-1α at gene and protein levels; PI positive cells and the release of LDH were also elevated. CONCLUSION Hypoxia and P. gingivalis-LPS synergistically induced NLRP3 inflammasome activation in HGFs, and subsequently high levels of interleukin-1β and GSDMD-mediated pyroptosis can cause an HGF inflammatory response, which plays an important role in the pathogenesis of periodontitis.
Collapse
Affiliation(s)
- Kai Yang
- Department of Periodontology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China; School of Stomatology, Qingdao University, Qingdao, Shandong, China
| | - Shuo Xu
- Laboratory of Oral Microbiology, Shanghai Research Institute of Stomatology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongmei Zhao
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Lingshuang Liu
- Department of Endodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Xiaofang Lv
- Department of Periodontology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China; School of Stomatology, Qingdao University, Qingdao, Shandong, China
| | - Fang Hu
- Department of Periodontology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China; School of Stomatology, Qingdao University, Qingdao, Shandong, China
| | - Lei Wang
- Department of Periodontology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China; School of Stomatology, Qingdao University, Qingdao, Shandong, China
| | - Qiuxia Ji
- Department of Periodontology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China; School of Stomatology, Qingdao University, Qingdao, Shandong, China.
| |
Collapse
|
17
|
Huang Y, Wang S, Huang F, Zhang Q, Qin B, Liao L, Wang M, Wan H, Yan W, Chen D, Liu F, Jiang B, Ji D, Xia X, Huang J, Xiong K. c-FLIP regulates pyroptosis in retinal neurons following oxygen-glucose deprivation/recovery via a GSDMD-mediated pathway. Ann Anat 2021; 235:151672. [PMID: 33434657 DOI: 10.1016/j.aanat.2020.151672] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 11/26/2020] [Accepted: 12/09/2020] [Indexed: 02/06/2023]
Abstract
Cellular FLICE-inhibitory protein (c-FLIP), an anti-apoptotic regulator, shows remarkable similarities to caspase-8, which plays a key role in the cleavage of gasdermin D (GSDMD). It has been reported that the oxygen-glucose deprivation/recovery (OGD/R) model and lipopolysaccharide (LPS)/adenosine triphosphate (ATP) treatment could induce inflammation and pyroptosis. However, the regulatory role of c-FLIP in the pyroptotic death of retinal neurons is unclear. In this study, we hypothesized that c-FLIP might regulate retinal neuronal pyroptosis by GSDMD cleavage. To investigate this hypothesis, we induced retinal neuronal damage in vitro (OGD/R and LPS/ATP) and in vivo (acute high intraocular pressure [aHIOP]). Our results demonstrated that the three injuries triggered the up-regulation of pyroptosis-related proteins, and c-FLIP could cleave GSDMD to generate a functional N-terminal (NT) domain of GSDMD, causing retinal neuronal pyroptosis. In addition, c-FLIP knockdown in vivo ameliorated the already established visual impairment mediated by acute IOP elevation. Taken together, these findings revealed that decreased c-FLIP expression protected against pyroptotic death of retinal neurons possibly by inhibiting GSDMD-NT generation. Therefore, c-FLIP might provide new insights into the pathogenesis of pyroptosis-related diseases and help to elucidate new therapeutic targets and potential treatment strategies.
Collapse
Affiliation(s)
- Yanxia Huang
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China; Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Shuchao Wang
- Center for Medical Research, The Second Xiangya Hospital of Central South University, Changsha 410013, China
| | - Fei Huang
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Qi Zhang
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Bo Qin
- Department of Anatomy, Medical College of Hubei Polytechnic University, Huang shi 435003, China
| | - Lvshuang Liao
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Mi Wang
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Hao Wan
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Weitao Yan
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Dan Chen
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Fengxia Liu
- Department of Human Anatomy, School of Basic Medical Science, Xinjiang Medical University, Urumqi 830001, China
| | - Bing Jiang
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha 410008, China
| | - Dan Ji
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xiaobo Xia
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Jufang Huang
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China.
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Sciences, Central South University, Changsha 410013, China.
| |
Collapse
|
18
|
Hong W, Gu Y, Guan R, Xie D, Zhou H, Yu M. Pan-cancer analysis of the CASP gene family in relation to survival, tumor-infiltrating immune cells and therapeutic targets. Genomics 2020; 112:4304-4315. [PMID: 32682809 DOI: 10.1016/j.ygeno.2020.07.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/04/2020] [Accepted: 07/13/2020] [Indexed: 01/04/2023]
Abstract
The cysteinyl aspartate protease (caspase, or CASP) gene family plays a significant role in programmed cell death, inflammation and immunity. However, the correlation between CASP family members and prognosis and tumor-infiltrating lymphocytes in different tumors has not been determined. We investigated the role of CASP genes in cancer prognosis and their relationship with clinicopathological parameters. We also evaluated the correlation between the expression of CASP family members and cancer immune infiltration and evaluated whether these molecules can be used as targets for immunotherapy. The CASP1/2/4/5/7/9 genes may represent prognostic factors and therapeutic targets for breast cancer, hepatocellular carcinoma and pancreatic cancer. Another finding is that the CASP1/4/5 genes help to regulate innate immunity and T cell immunity and may also have an important effect on tumor checkpoint inhibition. These findings may elucidate the roles played by CASP family members in cancer progression and identify strategies to promote collaborative activities in the context of immunotherapy.
Collapse
Affiliation(s)
- Weifeng Hong
- Department of Medical Imaging, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China; Morning Star Academic Cooperation, Shanghai, China
| | - YuJun Gu
- Department of Ultrasonic Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - RenGuo Guan
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Daipeng Xie
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Haiyu Zhou
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Min Yu
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
| |
Collapse
|
19
|
GDF11 inhibits cardiomyocyte pyroptosis and exerts cardioprotection in acute myocardial infarction mice by upregulation of transcription factor HOXA3. Cell Death Dis 2020; 11:917. [PMID: 33100331 PMCID: PMC7585938 DOI: 10.1038/s41419-020-03120-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 02/06/2023]
Abstract
NLRP3 (Nucleotide-binding oligomerization domain-like receptor pyrin domain-containing 3) inflammasome-mediated cardiomyocytes pyroptosis plays a crucial part in progression of acute myocardial infarction (MI). GDF11 (Growth Differentiation Factor 11) has been reported to generate cytoprotective effects in phylogenesis and multiple diseases, but the mechanism that GDF11 contributes to cardioprotection of MI and cardiomyocytes pyroptosis remains poorly understood. In our study, we first determined that GDF11 was abnormally downregulated in the heart tissue of MI mice and hypoxic cardiomyocytes. Moreover, AAV9-GDF11 markedly alleviated heart function in MI mice. Meanwhile, GDF11 overexpression also decreased the pyroptosis of hypoxic cardiomyocytes. PROMO and JASPAR prediction software found that transcription factor HOXA3 was predicted as an important regulator of NLRP3, and was confirmed by ChIP assay. Further analysis identifying GDF11 promoted the Smad2/3 pathway resulted in HOXA3 overexpression. Taken together, our study implies that GDF11 prevents cardiomyocytes pyroptosis via HOXA3/NLRP3 signaling pathway in MI mice.
Collapse
|
20
|
Liu K, Ding T, Fang L, Cui L, Li J, Meng X, Zhu G, Qian C, Wang H, Li J. Organic Selenium Ameliorates Staphylococcus aureus-Induced Mastitis in Rats by Inhibiting the Activation of NF-κB and MAPK Signaling Pathways. Front Vet Sci 2020; 7:443. [PMID: 32851026 PMCID: PMC7406644 DOI: 10.3389/fvets.2020.00443] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/19/2020] [Indexed: 12/16/2022] Open
Abstract
Mastitis is an economically important disease in dairy cows, which is often caused by Staphylococcus aureus (S. aureus). Selenium is an indispensable element for physiological function and contributes to reduce injury of the mammary glands in mastitis. However, adequate sources of selenium have always been an important consideration for livestock. Therefore, the study aimed to explore the protective effect and mechanism of Selenohomolanthionine (SeHLan) on mastitis induced by S. aureus. The S. aureus-induced rat model was established and three doses (0.2, 2, 20 μg/kg body weight/day) of dietary OS were supplemented. The bacterial load, histopathology, and myeloperoxidase (MPO) of the mammary glands were performed and determined. Cytokines, including interleukin (IL)-1β, TNF-α, and IL-6, were detected using qRT-PCR. The key proteins of NF-κB and MAPK signaling pathways were analyzed by Western blot. The results revealed that OS supplementation could reduce the recruitment of neutrophils and macrophages in mammary tissues, but did not decrease S. aureus load in the tissues. The overexpression levels of IL-1β, TNF-α, and IL-6 induced by S. aureus were inhibited after OS treatment. Furthermore, the increased phosphorylation of NF-κB and MAPKs proteins were also suppressed. The results suggest that dietary supplementation with adequate OS during pregnancy contributes to protect the mammary glands from injury caused by S. aureus and alleviate the inflammatory response.
Collapse
Affiliation(s)
- Kangjun Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Tao Ding
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Li Fang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Luying Cui
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Jun Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Xia Meng
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Guoqiang Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Chen Qian
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Heng Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Jianji Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| |
Collapse
|
21
|
Diazepam inhibited lipopolysaccharide (LPS)-induced pyroptotic cell death and alleviated pulmonary fibrosis in mice by specifically activating GABAA receptor α4-subunit. Biomed Pharmacother 2019; 118:109239. [DOI: 10.1016/j.biopha.2019.109239] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/11/2019] [Accepted: 07/16/2019] [Indexed: 12/27/2022] Open
|