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Guo C, Yu M, Liu J, Jia Z, Liu H, Zhao S. Molecular mechanism of Wilms tumour 1-associated protein in diabetes-related dry eye disease by mediating m6A methylation modification of lncRNA NEAT1. J Drug Target 2024; 32:200-212. [PMID: 38153328 DOI: 10.1080/1061186x.2023.2300682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 12/24/2023] [Indexed: 12/29/2023]
Abstract
Background: Dry eye disease (DED) is often secondary to diabetes mellitus (DM).Purpose: This study is to explore the action of Wilms tumor 1-associated protein (WTAP) in DM-DED via lncRNA NEAT1 m6A methylation.Methods: DM-DED mouse models were treated with sh-WTAP/sh-NEAT1, followed by assessment of corneal epithelial damage/histopathological changes. HCE-2 cells were exposed to hyperosmotic conditions to establish in vitro DED models and treated with oe-NEAT1/sh-NEAT1/sh-WTAP/nigericin (an NLRP3 inflammasome inducer). Cell viability/apoptosis were evaluated by CCK-8/TUNEL. Levels of WTAP/NEAT1/inflammatory factors/NLRP3 inflammasome- and apoptosis-related markers were determined. m6A modification was examined by MeRIP-qPCR and NEAT1 stability was also detected.Results: DM-DED mice exhibited up-regulated WTAP/NEAT1 expression and severe corneal damage, whereas WTAP/NEAT1 knockdown alleviated inflammation/corneal damage. In hyperosmolarity-induced HCE-2 cells, NEAT1 aggravated inflammation and apoptosis, while NEAT1 knockdown suppressed NLRP3 inflammasome activation and ameliorated cell injury. Hyperosmolarity-induced WTAP expression increased m6A modification and NEAT1 mRNA stability. WTAP mediated m6A methylation of NEAT1 and NLRP3 inflammasome activation in DM-DED mice.
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Affiliation(s)
- Chen Guo
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Mingyi Yu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Jinghua Liu
- School of Medicine, Nankai University, Tianjin, China
| | - Zhe Jia
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Hui Liu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Shaozhen Zhao
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
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Xu S, Wang D, Tan L, Lu J. The role of NLRP3 inflammasome in type 2 inflammation related diseases. Autoimmunity 2024; 57:2310269. [PMID: 38332696 DOI: 10.1080/08916934.2024.2310269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 01/21/2024] [Indexed: 02/10/2024]
Abstract
Type 2 inflammation related diseases, such as atopic dermatitis, asthma, and allergic rhinitis, are diverse and affect multiple systems in the human body. It is common for individuals to have multiple co-existing type 2 inflammation related diseases, which can impose a significant financial and living burden on patients. However, the exact pathogenesis of these diseases is still unclear. The NLRP3 inflammasome is a protein complex composed of the NLRP3 protein, ASC, and Caspase-1, and is activated through various mechanisms, including the NF-κB pathway, ion channels, and lysosomal damage. The NLRP3 inflammasome plays a role in the immune response to pathogens and cellular damage. Recent studies have indicated a strong correlation between the abnormal activation of NLRP3 inflammasome and the onset of type 2 inflammation. Additionally, it has been demonstrated that suppressing NLRP3 expression effectively diminishes the inflammatory response, highlighting its promising therapeutic applications. Therefore, this article reviews the role of NLRP3 inflammasome in the development and therapy of multiple type 2 inflammation related diseases.
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Affiliation(s)
- Shenming Xu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Medical Ozone Research Center of Central South University, Changsha, Hunan, People's Republic of China
| | - Dan Wang
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Medical Ozone Research Center of Central South University, Changsha, Hunan, People's Republic of China
| | - Lina Tan
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Medical Ozone Research Center of Central South University, Changsha, Hunan, People's Republic of China
| | - Jianyun Lu
- Department of Dermatology, Third Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
- Medical Ozone Research Center of Central South University, Changsha, Hunan, People's Republic of China
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He C, Wu Q, Zeng Z, Yang Y, He H, Hu M, Liu S. OGT-induced O-GlcNAcylation of NEK7 protein aggravates osteoarthritis progression by enhancing NEK7/ NLRP3 axis. Autoimmunity 2024; 57:2319202. [PMID: 38389178 DOI: 10.1080/08916934.2024.2319202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 02/11/2024] [Indexed: 02/24/2024]
Abstract
BACKGROUNDS The role of O-GlcNAc transferase (OGT)-induced O-linked N-acetylglucosaminylation (O-GlcNAcylation) has been reported in multiple human diseases. However, its specific functions in osteoarthritis (OA) progression remain undetermined. OBJECTIVE This study focused on the target proteins of OGT-induced O-GlcNAcylation in OA and the specific functional mechanism. METHODS The levels of total O-GlcNAc and OGT were measured in both in vitro and in vivo OA models using western blot. The effects of OGT knockout on OA progression were detected through Safranin O staining, immunohistochemical staining and OARSI score evaluation. The effects of OGT silencing on LPS-induced chondrocyte injury were assessed by performing loss-of function assays. Co-immunoprecipitation (co-IP) was conducted to verify the effect of OGT-induced O-GlcNAcylation on the interaction between NEK7 and NLRP3. The role of OGT in modulating the O-GlcNAcylation and phosphorylation levels of NEK7 was analysed using western blot. RESULTS The OGT-indued O-GlcNAcylation level was increased in both in vitro and in vivo OA models. Knockout of OGT mitigated OA progression in model mice. Additionally, silencing of OGT suppressed LPS-induced chondrocyte pyroptosis. Moreover, silencing of OGT inhibited the O-GlcNAcylation and enhanced the phosphorylation of NEK7 at S260 site, thereby blocking the binding of NEK7 with NLRP3. CONCLUSION OGT-induced NEK7 O-GlcNAcylation promotes OA progression by promoting chondrocyte pyroptosis via the suppressing interaction between NEK7 and NLRP3.
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Affiliation(s)
- Chunlei He
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China
| | - Qiang Wu
- Gannan Medical University, Ganzhou, China
| | | | - Yadong Yang
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China
| | - Huabin He
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China
| | - Meiyu Hu
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China
| | - Sheng Liu
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, P.R. China
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Liang L, Liu P, Deng Y, Li J, Zhao S. L- lactate inhibits lipopolysaccharide-induced inflammation of microglia in the hippocampus. Int J Neurosci 2024; 134:45-52. [PMID: 35880488 DOI: 10.1080/00207454.2022.2084089] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 05/13/2022] [Indexed: 10/16/2022]
Abstract
Objective: Depression is a common psychological and physiological disease in the world, which seriously affects the quality of life of patients and families. Exercise is an economic and noninvasive antidepressant measure, which has been widely recognized and applied in daily life and clinical practice, and the related mechanism research has also been paid attention to. In recent years, a new research report pointed out that peripheral administration of L-lactate can reverse depression-like behavior in mice, which suggesting that the lactic acid produced during exercise may be one of the factors leading to antidepressant effect, but the detailed mechanism is not clear. Inflammation is the pathogenic factor of many diseases and a large number of experiments have proved that inflammation is also an important pathogenic factor leading to depression. The purpose of our experiment is to explore whether lactic acid has anti-inflammatory and antidepressant effects.Methods: Based on the LPS induced inflammatory model, animal behavior observation, protein extraction, Western blotting, immunofluorescence and other techniques were used in this experiment.Results: Lactic acid could inhibit the change of some important inflammatory factors, such as TNF-αIL-1βphospho-NF-κB (p-NF-κB) and NLRP3 inflammasome complex (NLRP3/ASC/caspase-1) induced by LPS.Conclusion: Our current research suggested that lactic acid maybe exert antiinflammatory effect by inhibiting inflammatory factors.
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Affiliation(s)
- Liting Liang
- Department of Physiology, Guangzhou Medical University, China University, Guangzhou, China
| | - Pan Liu
- Department of Physiology, Guangzhou Medical University, China University, Guangzhou, China
| | - Yumin Deng
- Department of Physiology, Guangzhou Medical University, China University, Guangzhou, China
| | - Jianhua Li
- Department of Physiology, Guangzhou Medical University, China University, Guangzhou, China
| | - Shenting Zhao
- Department of Physiology, Guangzhou Medical University, China University, Guangzhou, China
- Department of Neurology and Emergency, Department of the Second Affiliated Hospital of Guangzhou Medical University, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou, China
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Yin Z, Cheng Q, Wang C, Hu Q, Yin J, Wang B. Apelin-13 alleviates osteoclast formation and osteolysis through Nrf2-pyroptosis pathway. Microsc Res Tech 2024; 87:1348-1358. [PMID: 38380581 DOI: 10.1002/jemt.24519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/13/2024] [Accepted: 02/06/2024] [Indexed: 02/22/2024]
Abstract
Wear particle-induced periprosthetic osteolysis is the key to aseptic loosening after artificial joint replacement. Osteoclastogenesis plays a central role in this process. Apelin-13 is a member of the adipokine family with anti-inflammatory effects. Here, we report that apelin-13 alleviates RANKL-mediated osteoclast differentiation and titanium particle-induced osteolysis in mouse calvaria. Mechanistically, apelin-13 inhibits NLRP3 inflammasome-mediated pyroptosis by activating the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway. In summary, apelin-13 is expected to be a potential drug for relieving aseptic osteolysis. RESEARCH HIGHLIGHTS: This study reveals the molecular mechanism by which apelin-13 inhibits NLRP3 inflammasome activation and pyroptosis by promoting Nrf2. This study confirms that apelin-13 alleviates osteoclast activation by inhibiting pyroptosis. In vivo studies further confirmed that apelin-13 alleviated mouse skull osteolysis by inhibiting the activation of NLRP3 inflammasome.
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Affiliation(s)
- Zhaoyang Yin
- Department of Orthopedics, The Affiliated Lianyungang Hospital of Xuzhou Medical University (The First People's Hospital of Lianyungang), Lianyungang, China
| | - Qinghua Cheng
- Department of Orthopedics, Nanjing Lishui People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
| | - Chao Wang
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
| | - Qin Hu
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
| | - Jian Yin
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
| | - Bin Wang
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
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Liu Y, Li X, Sun T, Li T, Li Q. Pyroptosis in myocardial ischemia/reperfusion and its therapeutic implications. Eur J Pharmacol 2024; 971:176464. [PMID: 38461908 DOI: 10.1016/j.ejphar.2024.176464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 02/17/2024] [Accepted: 02/28/2024] [Indexed: 03/12/2024]
Abstract
Ischemic heart disease, a prevalent cardiovascular disease with global significance, is associated with substantial morbidity. Timely and successful reperfusion is crucial for reducing infarct size and enhancing clinical outcomes. However, reperfusion may induce additional myocardium injury, manifesting as myocardial ischemia/reperfusion (MI/R) injury. Pyroptosis is a regulated cell death pathway, the signaling pathway of which is activated during MI/R injury. In this process, the inflammasomes are triggered, initiating the cleavage of gasdermin proteins and pro-interleukins, which results in the formation of membrane pores and the maturation and secretion of inflammatory cytokines. Numerous preclinical evidence underscores the pivotal role of pyroptosis in MI/R injury. Inhibiting pyroptosis is cardioprotective against MI/R injury. Although certain agents exhibiting promise in preclinical studies for attenuating MI/R injury through inhibiting pyroptosis have been identified, the suitability of these compounds for clinical trials remains untested. This review comprehensively summarizes the recent developments in this field, with a specific emphasis on the impact of pyroptosis on MI/R injury. Deciphering these findings not only sheds light on new disease mechanisms but also paves the way for innovative treatments. And then the exploration of the latest advances in compounds that inhibit pyroptosis in MI/R is discussed, which aims to provide insights into potential therapeutic strategies and identify avenues for future research in the pursuit of effective clinical interventions.
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Affiliation(s)
- Yin Liu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
| | - Xi Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
| | - Tingting Sun
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
| | - Tao Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China; Laboratory of Mitochondria and Metabolism, West China Hospital, Sichuan University, Chengdu, China.
| | - Qian Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
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Yu S, Hou C, Zhang X, Wei Z. Mesencephalic astrocyte-derived neurotrophic factor ameliorates inflammatory response in polycystic ovary syndrome via inhibiting TLR4-NF-κB- NLRP3 pathway. Biochem Biophys Res Commun 2024; 707:149782. [PMID: 38493745 DOI: 10.1016/j.bbrc.2024.149782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
Polycystic ovary syndrome (PCOS) is a common reproductive endocrine disorder in women of reproductive age, which often leads to female infertility. Chronic inflammation is a significant factor in the development of PCOS. Our study aimed to explore the impact of mesencephalic astrocyte-derived neurotrophic factor (MANF), a scientifically validated anti-inflammatory factor, on 99 diagnosed PCOS patients. We also investigated its effects on PCOS mice induced with dehydroepiandrosterone (DHEA) and KGN cells induced with dihydrotestosterone (DHT). Our findings revealed a decrease in serum MANF levels in PCOS patients, which were negatively associated with serum tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) levels. The administration of recombinant human MANF (rhMANF) in PCOS mice demonstrated a decrease in pro-inflammatory cytokines and monocytes/macrophages in both peripheral blood and ovarian tissues. Furthermore, the inclusion of rhMANF notably ameliorated DHEA-induced ovarian dysfunction and fibrosis by negatively regulating the toll-like receptor 4 (TLR4)-nuclear factor kappa B (NF-κB)-NLR family, pyrin domain containing protein 3 (NLRP3) pathway. Additionally, in vitro experiments showed that the up-regulation of MANF offset DHT-induced inhibition of viability and apoptosis in KGN cells. Collectively, this study highlights the anti-inflammatory properties of MANF in PCOS and suggests its potential as a therapeutic approach for the management of PCOS.
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Affiliation(s)
- Shujun Yu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Chao Hou
- School of Basic Medical Science, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Xinru Zhang
- School of Basic Medical Science, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China.
| | - Zhaolian Wei
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei, 230022, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No 81 Meishan Road, Hefei, 230032, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei, 230032, Anhui, China.
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Chen L, Hua B, He Q, Han Z, Wang Y, Chen Y, Ni H, Zhu Z, Xu L, Yao M, Ni C. Curcumin analogue NL04 inhibits spinal cord central sensitization in rats with bone cancer pain by inhibiting NLRP3 inflammasome activation and reducing IL-1β production. Eur J Pharmacol 2024; 970:176480. [PMID: 38490468 DOI: 10.1016/j.ejphar.2024.176480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/08/2024] [Accepted: 03/04/2024] [Indexed: 03/17/2024]
Abstract
The management and therapy of bone cancer pain (BCP) remain formidable clinical challenges. Curcumin and its analogues have been shown to have anti-inflammatory and analgesic properties. In the present study, we investigated the efficacy of curcumin analogue NL04 (NL04) in modulating inflammation in spinal dorsal horn (SDH), thereby exploring its potential to reduce central sensitization of BCP in a rat model. Differing doses of NL04 and curcumin were administered intrathecally either once (on day 12 of BCP) or over seven consecutive days (from day 6-12 of BCP). Results indicated that the ED50 for NL04 and curcumin ameliorating BCP-induced mechanical hyperalgesia is 49.08 μg/kg and 489.6 μg/kg, respectively. The analgesic effects at various doses of NL04 lasted between 4 and 8 h, with sustained administration over a week maintaining pain relief for 1-4 days, while also ameliorating locomotor gait via gait analysis and reducing depressive and anxiety-like behaviors via open-field and light-dark transition tests. The analgesic effects at various doses of curcumin lasted 4 h, with sustained administration over a week maintaining pain relief for 0-2 days. ELISA, Western blotting, qPCR, and immunofluorescence assays substantiated that intrathecal administration of NL04 on days 6-12 of BCP dose-dependently lowered spinal IL-1β and IL-18 levels and significantly reduced the expression of IKKβ genes and proteins, as well as the downstream cleavage of the trans-Golgi network (TGN). Whole-cell patch-clamp results demonstrated that NL04 inhibits potassium ion efflux in rat primary spinal neurons. Thus, NL04 exhibits significant analgesic effects in a BCP rat model by downregulating IKKβ expression and inhibiting neuronal potassium ion efflux, which, in turn, suppresses the activation of NLRP3 inflammasomes and reduces IL-1β production, potentially ameliorating pain management in BCP.
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Affiliation(s)
- Liping Chen
- Department of Anesthesiology and Pain Research Center, Jiaxing University Affiliated Hospital, The First Hospital of Jiaxing, Jiaxing, Zhejiang, China
| | - Bohan Hua
- Anesthesia Medicine, Jiaxing University Master Degree Cultivation Base, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Qiuli He
- Department of Anesthesiology and Pain Research Center, Jiaxing University Affiliated Hospital, The First Hospital of Jiaxing, Jiaxing, Zhejiang, China
| | - Zixin Han
- Department of Anesthesiology and Pain Research Center, Jiaxing University Affiliated Hospital, The First Hospital of Jiaxing, Jiaxing, Zhejiang, China
| | - Yahui Wang
- Department of Anesthesiology and Pain Research Center, Jiaxing University Affiliated Hospital, The First Hospital of Jiaxing, Jiaxing, Zhejiang, China
| | - Yujing Chen
- Department of Pathology, Jiaxing University Affiliated Hospital, The First Hospital of Jiaxing, Jiaxing, Zhejiang, China
| | - Huadong Ni
- Department of Anesthesiology and Pain Research Center, Jiaxing University Affiliated Hospital, The First Hospital of Jiaxing, Jiaxing, Zhejiang, China
| | - Zefeng Zhu
- Department of Radiology, Jiaxing University Affiliated Hospital, The First Hospital of Jiaxing, Jiaxing, Zhejiang, China
| | - Longsheng Xu
- Department of Anesthesiology and Pain Research Center, Jiaxing University Affiliated Hospital, The First Hospital of Jiaxing, Jiaxing, Zhejiang, China
| | - Ming Yao
- Department of Anesthesiology and Pain Research Center, Jiaxing University Affiliated Hospital, The First Hospital of Jiaxing, Jiaxing, Zhejiang, China.
| | - Chaobo Ni
- Department of Anesthesiology and Pain Research Center, Jiaxing University Affiliated Hospital, The First Hospital of Jiaxing, Jiaxing, Zhejiang, China.
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Tang S, Huang S, Huang J, Lai X, Guo J, Huang J, Zhong Y. Pogostone attenuated high-fat diet-induced nonalcoholic fatty liver disease in mice through inhibition of NLRP3 inflammasome signaling. Eur J Pharmacol 2024; 970:176463. [PMID: 38461909 DOI: 10.1016/j.ejphar.2024.176463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/01/2024] [Accepted: 02/28/2024] [Indexed: 03/12/2024]
Abstract
Inhibition of inflammasome activation is a potential therapeutic strategy for treating nonalcoholic fatty liver disease (NAFLD). Pogostone (PO), an active ingredient in Pogostemon cablin, exhibits various pharmacological properties, including anti-inflammation. However, there are no reports of the hepatoprotective effects of PO in NAFLD induced by a high-fat diet (HFD). Molecular biology methods and molecular docking analysis were used to determine the therapeutic effects and mechanisms of PO in NAFLD in vitro and in vivo. Results showed that in vitro, PO reduced lipid deposition, accelerated fatty acid oxidation (FAO), and inhibited the inflammatory response by elevating mRNA expression of FAO genes and decreasing mRNA expression of proinflammatory genes such as NLRP3. In vivo, PO significantly reduced body weight and liver fat deposition and lowered the generation of inflammatory factors, thereby ameliorating liver fibrosis and liver injury. The hepatoprotective effect of PO against HFD was largely impaired in NLRP3-/- mice. Molecular docking experiments demonstrated a strong interaction between PO and NLRP3. In conclusion, PO decreased fat deposition and the inflammatory response by inhibiting NLRP3 expression, resulting in the alleviation of NAFLD. Our study suggests that PO may be a promising treatment for NAFLD.
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Affiliation(s)
- Shengzhao Tang
- Department of Acupuncture-Rehabilitation, Guangzhou-Liwan Hospital of Chinese Medicine, Guangzhou, Guangdong 510000, China
| | - Shangyi Huang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Jiaxin Huang
- Department of Acupuncture-Rehabilitation, Guangzhou-Liwan Hospital of Chinese Medicine, Guangzhou, Guangdong 510000, China
| | - Xinger Lai
- Department of Acupuncture-Rehabilitation, Guangzhou-Liwan Hospital of Chinese Medicine, Guangzhou, Guangdong 510000, China
| | - Jingyi Guo
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Jiawen Huang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Yanhua Zhong
- Department of Acupuncture-Rehabilitation, Guangzhou-Liwan Hospital of Chinese Medicine, Guangzhou, Guangdong 510000, China.
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Jiang S, Li W, Song M, Liang J, Liu G, Du Q, Wang L, Meng H, Tang L, Yang Y, Zhang B. CXCL1-CXCR2 axis mediates inflammatory response after sciatic nerve injury by regulating macrophage infiltration. Mol Immunol 2024; 169:50-65. [PMID: 38493581 DOI: 10.1016/j.molimm.2024.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/09/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
Macrophages play a crucial role in the inflammatory response following sciatic nerve injury. Studies have demonstrated that C-X-C motif chemokine (CXCL) 1 recruit macrophages by binding to C-X-C chemokine receptor (CXCR) 2 and participates in the inflammatory response of various diseases. Based on these findings, we aimed to explore the role of the CXCL1-CXCR2 axis in the repair process after peripheral nerve injury. Initially, we simulated sciatic nerve injury and observed an increased expression of CXCL1 and CXCR2 in the nerves of the injury group. Both in vivo and in vitro experiments confirmed that the heightened CXCL1 expression occurs in Schwann cells and is secreted, while the elevated CXCR2 is expressed by recruited macrophages. In addition, in vitro experiments demonstrated that the binding of CXCL1 to CXCR2 can activate the NLRP3 inflammasome and promote the production of interleukin-1 beta (IL-1β) in macrophages. However, after mice were subjected to sciatic nerve injury, the number of macrophages and the expression of inflammatory factors in the sciatic nerve were reduced following treatment with the CXCR2 inhibitor SB225002. Simultaneously, we evaluated the sciatic nerve function index, the expression of p75 neurotrophic factor receptor (p75NTR), and myelin proteins, and all of these results were improved with the use of SB225002. Thus, our results suggest that after sciatic nerve injury, the CXCL1-CXCR2 axis mediates the inflammatory response by promoting the recruitment and activation of macrophages, which is detrimental to the repair of the injured nerves. In contrast, treatment with SB225002 promotes the repair of injured sciatic nerves.
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Affiliation(s)
- Suli Jiang
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Wei Li
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Meiying Song
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Jie Liang
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Guixian Liu
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Qiaochu Du
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Luoyang Wang
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Haining Meng
- School of Emergency Medicine, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Lei Tang
- Department of Special Medicine, School of Basic Medical College, Qingdao University, Qingdao, Shandong Province, China
| | - Yanyan Yang
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Bei Zhang
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China.
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11
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Hudson BN, Purves JT, Hughes FM, Nagatomi J. Enzyme-induced hypoxia leads to inflammation in urothelial cells in vitro. Int Urol Nephrol 2024; 56:1565-1575. [PMID: 38133728 DOI: 10.1007/s11255-023-03900-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/24/2023] [Indexed: 12/23/2023]
Abstract
PURPOSE To determine the contributions of different durations of hypoxia to NLRP3 inflammasome activation in urothelial cells and how ischemic changes in bladder tissues is an important chemical que that leads to pathological changes seen in BOO. METHODS A rat urothelial cell line (MYP3) was exposed to either a short duration (2 h) or long duration (6 h) of enzyme-induced hypoxia. Following exposure to a short duration of hypoxia, NO and ATP concentrations were measured from supernatant media and caspase-1 levels were measured from cell lysates. In a separate experiment, cells were fixed following hypoxia exposure and immunostained for HIF-1α stabilization. RESULTS Although short exposure of low oxygen conditions resulted in a hypoxic response in MYP3 cells, as indicated by HIF-1α stabilization and increased NO activity, NLRP3 inflammasome activation was not observed as caspase-1 activity remained unchanged. However, exposure of MYP3 cells to a longer duration of hypoxia resulted in an increase in intracellular caspase-1 activity. Furthermore, treatment with antioxidant (GSH) or TXNIP inhibitor (verapamil) attenuated the hypoxia-induced increase in caspase-1 levels indicating that hypoxia primarily drives inflammation through a ROS-mediated TXNIP/NLRP3 pathway. CONCLUSION We conclude that hypoxia induced bladder damage requires a duration that is more likely related to elevated storage pressures/hypoxia, seen in later stages of BOO, as compared to shorter duration pressure elevation/hypoxia that is encountered in normal micturition cycles or early in the BOO pathology where storage pressures are still normal.
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Affiliation(s)
- Britney N Hudson
- Department of Bioengineering, 301 Rhodes Engineering Research Center, Clemson University, Clemson, SC, 29634-0905, USA
| | - J Todd Purves
- Department of Bioengineering, 301 Rhodes Engineering Research Center, Clemson University, Clemson, SC, 29634-0905, USA
- Department of Surgery, Division of Urology, Duke University Medical Center, Durham, NC, USA
- Department of Pediatrics, Duke University Medical Center, Durham, NC, USA
| | - Francis M Hughes
- Department of Bioengineering, 301 Rhodes Engineering Research Center, Clemson University, Clemson, SC, 29634-0905, USA
- Department of Surgery, Division of Urology, Duke University Medical Center, Durham, NC, USA
| | - Jiro Nagatomi
- Department of Bioengineering, 301 Rhodes Engineering Research Center, Clemson University, Clemson, SC, 29634-0905, USA.
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12
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Chen J, Sun X, Liu Y, Zhang Y, Zhao M, Shao L. SENP3 attenuates foam cell formation by deSUMOylating NLRP3 in macrophages stimulated with ox-LDL. Cell Signal 2024; 117:111092. [PMID: 38331013 DOI: 10.1016/j.cellsig.2024.111092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 01/22/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
SUMO-specific protease 3 (SENP3) participates in the removal of SUMOylation and maintains the balance of the SUMO system, which ensures normal functioning of substrates and cellular activities. In the present study, we found that SENP3 expression was significantly reduced in ox-LDL-stimulated macrophages. SENP3 overexpression suppressed and SENP3 knockdown promoted macrophage foam cell formation. Moreover, SENP3 inhibited cholesterol uptake, CD36 expression, and NOD-like receptor thermal protein domain-associated protein 3 (NLRP3) inflammasome activation in ox-LDL-stimulated macrophages. Ox-LDL-stimulated NLRP3 SUMOylation was reduced by SENP3. Blocking NLRP3 SUMOylation inhibited foam cell formation and NLRP3 inflammasome activation. Thus, this study revealed that SENP3 inhibits macrophage foam cell formation by deSUMOylating NLRP3 and regulating NLRP3 inflammasome activation, which may provide a potentially innovative approach to treatment of atherosclerosis.
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Affiliation(s)
- Jiaojiao Chen
- Department of Pathogen Biology, School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China
| | - Xuan Sun
- Department of Pathogen Biology, School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China
| | - Yuan Liu
- Department of Pathogen Biology, School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China
| | - Yuze Zhang
- Department of Pathogen Biology, School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China
| | - Min Zhao
- Department of Biochemistry, School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China.
| | - Luyao Shao
- Department of Pathogen Biology, School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China.
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13
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Abd El Salam ASG, Abd Elrazik NA. Cinnamaldehyde/lactulose combination therapy alleviates thioacetamide-induced hepatic encephalopathy via targeting P2X7R-mediated NLRP3 inflammasome signaling. Life Sci 2024; 344:122559. [PMID: 38479595 DOI: 10.1016/j.lfs.2024.122559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 03/03/2024] [Accepted: 03/09/2024] [Indexed: 03/22/2024]
Abstract
AIMS Cinnamaldehyde (CA), the main active constituent of cinnamon oil, is reported to have neuroprotective effects. However, the potential benefits of CA for brain protection in hepatic encephalopathy (HE) are still not understood. Thus, the present study investigates the possible ameliorative effect of CA (70 mg/kg/day, I.P.) either alone or in combination with lactulose (Lac) (5.3 g/kg/day, oral) against thioacetamide (TAA)-induced hepatic encephalopathy in rats. MATERIALS AND METHODS For induction of HE, TAA (200 mg/kg) was intraperitoneally administered for 1 week at alternative days. CA, Lac and Lac+CA were administered for 14 days prior to and for further 7 days together with TAA injection. KEY FINDINGS CA, Lac and Lac+CA combination effectively attenuated TAA-induced HE; as indicated by the improvement in behavioral tests, mitigation of pathological abnormalities in both liver and brain, the significant reduction in serum hyperammonemia and amelioration in liver function biomarkers; ALT and AST. This was accompanied with a substantial restoration of redox state in liver and brain; MDA and GSH levels. Moreover, CA, Lac and Lac+CA combination reduced neuroinflammation as demonstrated by the notable attenuation of P2X7R, NLRP3, caspase-1, IL-1β, GFAP and Iba1 brain levels, as well as the amelioration of brain edema as manifested by reduction in AQP4 levels in brain. SIGNIFICANCE Our study has demonstrated that CA in combination with Lac possesses a superior neuroprotective effect over Lac alone against TAA-induced HE by attenuation of P2X7R/NLRP3 mediated neuroinflammation and relieving brain edema.
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Affiliation(s)
| | - Nesma A Abd Elrazik
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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14
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He Z, Hu Y, Zhang Y, Xie J, Niu Z, Yang G, Zhang J, Zhao Z, Wei S, Wu H, Hu W. Asiaticoside exerts neuroprotection through targeting NLRP3 inflammasome activation. Phytomedicine 2024; 127:155494. [PMID: 38471370 DOI: 10.1016/j.phymed.2024.155494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Parkinson's disease (PD), a neurodegenerative disorder, is characterized by motor symptoms due to the progressive loss of dopaminergic neurons in the substantia nigra (SN) and striatum (STR), alongside neuroinflammation. Asiaticoside (AS), a primary active component with anti-inflammatory and neuroprotective properties, is derived from Centella asiatica. However, the precise mechanisms through which AS influences PD associated with inflammation are not yet fully understood. PURPOSE This study aimed to explore the protective mechanism of AS in PD. METHODS Targets associated with AS and PD were identified from the Swiss Target Prediction, Similarity Ensemble Approach, PharmMapper, and GeneCards database. A protein-protein interaction (PPI) network was constructed to identify potential therapeutic targets. Concurrently, GO and KEGG analyses were performed to predict potential signaling pathways. To validate these mechanisms, the effects of AS on 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD in mice were investigated. Furthermore, neuroinflammation and the activation of the NLRP3 inflammasome were assessed to confirm the anti-inflammatory properties of AS. In vitro experiments in BV2 cells were then performed to investigate the mechanisms of AS in PD. Moreover, CETSA, molecular docking, and molecular dynamics simulations (MDs) were performed for further validation. RESULTS Network pharmacology analysis identified 17 potential targets affected by AS in PD. GO and KEGG analyses suggested the biological roles of these targets, demonstrating that AS interacts with 149 pathways in PD. Notably, the NOD-like receptor signaling pathway was identified as a key pathway mediating AS's effect on PD. In vivo studies demonstrated that AS alleviated motor dysfunction and reduced the loss of dopaminergic neurons in MPTP-induced PD mice. In vitro experiments demonstrated that AS substantially decreased IL-1β release in BV2 cells, attributing this to the modulation of the NLRP3 signaling pathway. CETSA and molecular docking studies indicated that AS forms a stable complex with NLRP3. MDs suggested that ARG578 played an important role in the formation of the complex. CONCLUSION In this study, we first predicted that the potential target and pathway of AS's effect on PD could be NLRP3 protein and NOD-like receptor signaling pathway by network pharmacology analysis. Further, we demonstrated that AS could alleviate symptoms of PD induced by MPTP through its interaction with the NLRP3 protein for the first time by in vivo and in vitro experiments. By binding to NLRP3, AS effectively inhibits the assembly and activation of the inflammasome. These findings suggest that AS is a promising inhibitor for PD driven by NLRP3 overactivation.
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Affiliation(s)
- Ziliang He
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou 225009, China
| | - Yeye Hu
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou 225009, China
| | - Ying Zhang
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou 225009, China
| | - Jing Xie
- School of Life Sciences, Huaiyin Normal University, Huaian 223300, China
| | - Zhiqiang Niu
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou 225009, China
| | - Guigui Yang
- School of Life Sciences, Huaiyin Normal University, Huaian 223300, China
| | - Ji Zhang
- School of Life Sciences, Huaiyin Normal University, Huaian 223300, China
| | - Zixuan Zhao
- Beijing Key Laboratory of New Drug Discovery based on Classic Chinese Medicine Prescription, Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Shuai Wei
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Prefabricated Seafood Processing and Quality Control, Zhanjiang 524088, China.
| | - Haifeng Wu
- Beijing Key Laboratory of New Drug Discovery based on Classic Chinese Medicine Prescription, Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
| | - Weicheng Hu
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
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15
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Liu T, Ma Z, Liu L, Pei Y, Wu Q, Xu S, Liu Y, Ding N, Guan Y, Zhang Y, Chen X. Conditioned medium from human dental pulp stem cells treats spinal cord injury by inhibiting microglial pyroptosis. Neural Regen Res 2024; 19:1105-1111. [PMID: 37862215 PMCID: PMC10749599 DOI: 10.4103/1673-5374.385309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 05/05/2023] [Accepted: 07/12/2023] [Indexed: 10/22/2023] Open
Abstract
Human dental pulp stem cell transplantation has been shown to be an effective therapeutic strategy for spinal cord injury. However, whether the human dental pulp stem cell secretome can contribute to functional recovery after spinal cord injury remains unclear. In the present study, we established a rat model of spinal cord injury based on impact injury from a dropped weight and then intraperitoneally injected the rats with conditioned medium from human dental pulp stem cells. We found that the conditioned medium effectively promoted the recovery of sensory and motor functions in rats with spinal cord injury, decreased expression of the microglial pyroptosis markers NLRP3, GSDMD, caspase-1, and interleukin-1β, promoted axonal and myelin regeneration, and inhibited the formation of glial scars. In addition, in a lipopolysaccharide-induced BV2 microglia model, conditioned medium from human dental pulp stem cells protected cells from pyroptosis by inhibiting the NLRP3/caspase-1/interleukin-1β pathway. These results indicate that conditioned medium from human dental pulp stem cells can reduce microglial pyroptosis by inhibiting the NLRP3/caspase-1/interleukin-1β pathway, thereby promoting the recovery of neurological function after spinal cord injury. Therefore, conditioned medium from human dental pulp stem cells may become an alternative therapy for spinal cord injury.
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Affiliation(s)
- Tao Liu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Ziqian Ma
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Liang Liu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yilun Pei
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Qichao Wu
- Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Songjie Xu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yadong Liu
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Nan Ding
- Department of Stomatology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yun Guan
- Department of Anesthesiology and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
- Department of Neurological Surgery, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Yan Zhang
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Xueming Chen
- Department of Orthopedic Surgery, Beijing Luhe Hospital, Capital Medical University, Beijing, China
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16
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Wu W, Song L, Wang H, Feng L, Li Z, Li Y, Li L, Peng L. Supercritical CO 2 fluid extract from Stellariae Radix ameliorates 2,4-dinitrochlorobenzene-induced atopic dermatitis by inhibit M1 macrophages polarization via AMPK activation. Environ Toxicol 2024; 39:3188-3197. [PMID: 38356236 DOI: 10.1002/tox.24145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/29/2023] [Accepted: 01/06/2024] [Indexed: 02/16/2024]
Abstract
Yin chai hu (Radix Stellariae) is a root medicine that is frequently used in Chinese traditional medicine to treat fever and malnutrition. In modern medicine, it has been discovered to have anti-inflammatory, anti-allergic, and anticancer properties. In a previous study, we were able to extract lipids from Stellariae Radix using supercritical CO2 extraction (SRE), and these sterol lipids accounted for up to 88.29% of the extract. However, the impact of SRE on the development of atopic dermatitis (AD) has not yet been investigated. This study investigates the inhibitory effects of SRE on AD development using a 2,4-dinitrochlorobenzene (DNCB)-induced AD mouse model. Treatment with SRE significantly reduced the dermatitis score and histopathological changes compared with the DNCB group. The study found that treatment with SRE resulted in a decrease of pro-inflammatory cytokines TNF-α, CXC-10, IL-12, and IL-1β in skin lesions. Additionally, immunohistochemical analysis revealed that SRE effectively suppressed M1 macrophage infiltration into the AD lesion. Furthermore, the anti-inflammatory effect of SRE was evaluated in LPS + INF-γ induced bone marrow-derived macrophages (BMDMs) M1 polarization, SRE inhibited the production of TNF-α, CXC-10, IL-12, and IL-1β and decreased the expression of NLRP3. Additionally, SRE was found to increase p-AMPKT172, but had no effect on total AMPK expression, after administration of the AMPK inhibitor Compound C, the inhibitory effect of SRE on M1 macrophages was partially reversed. The results indicate that SRE has an inhibitory effect on AD, making it a potential therapeutic agent for this atopic disorder.
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Affiliation(s)
- Wei Wu
- School of Life Sciences, Ningxia University, Yinchuan, China
| | - Le Song
- School of Life Sciences, Ningxia University, Yinchuan, China
| | - Hong Wang
- School of Life Sciences, Ningxia University, Yinchuan, China
| | - Lu Feng
- School of Life Sciences, Ningxia University, Yinchuan, China
| | - Zhenkai Li
- School of Life Sciences, Ningxia University, Yinchuan, China
| | - Yanqing Li
- School of Life Sciences, Ningxia University, Yinchuan, China
| | - Le Li
- School of Life Sciences, Ningxia University, Yinchuan, China
| | - Li Peng
- School of Life Sciences, Ningxia University, Yinchuan, China
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17
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He S, Li Z, Wang L, Yao N, Wen H, Yuan H, Zhang J, Li Z, Shen C. A nanoenzyme-modified hydrogel targets macrophage reprogramming-angiogenesis crosstalk to boost diabetic wound repair. Bioact Mater 2024; 35:17-30. [PMID: 38304915 PMCID: PMC10831190 DOI: 10.1016/j.bioactmat.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 12/27/2023] [Accepted: 01/05/2024] [Indexed: 02/03/2024] Open
Abstract
Diabetic wounds has a gradually increasing incidence and morbidity. Excessive inflammation due to immune imbalance leads to delayed wound healing. Here, we reveal the interconnection between activation of the NLRP3 inflammatory pathway in endotheliocyte and polarization of macrophages via the cGAS-STING pathway in the oxidative microenvironment. To enhance the immune-regulation based on repairing mitochondrial oxidative damage, a zeolitic imidazolate framework-8 coated with cerium dioxide that carries Rhoassociated protein kinase inhibition Y-27632 (CeO2-Y@ZIF-8) is developed. It is encapsulated in a photocross-linkable hydrogel (GelMA) with cationic quaternary ammonium salt groups modified to endow the antibacterial properties (CeO2-Y@ZIF-8@Gel). CeO2 with superoxide dismutase and catalase activities can remove excess reactive oxygen species to limit mitochondrial damage and Y-27632 can repair damaged mitochondrial DNA, thus improving the proliferation of endotheliocyte. After endotheliocyte uptakes CeO2-Y@ZIF-8 NPs to degrade peroxides into water and oxygen in cells and mitochondria, NLRP3 inflammatory pathway is inhibited and the leakage of oxidatively damaged mitochondrial DNA (Ox-mtDNA, a damage-associated molecular pattern) through mPTP decreases. Futhermore, as the cGAS-STING pathway activated by Ox-mtDNA down-regulated, the M2 phenotype polarization and anti-inflammatory factors increase. Collectively, CeO2-Y@ZIF-8@Gel, through remodulating the crosstalk between macrophage reprogramming and angiogenesis to alleviate inflammation in the microenvironment and accelerates wound healing.
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Affiliation(s)
- Shan He
- Department of Burns and Plastic Surgery, Fourth Medical Center of PLA General Hospital, No. 51, Fucheng Road, Haidian District, Beijing, 100048, China
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Zhenhao Li
- Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Lu Wang
- Department of Burns and Plastic Surgery, Fourth Medical Center of PLA General Hospital, No. 51, Fucheng Road, Haidian District, Beijing, 100048, China
| | - Nannan Yao
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, 061000, China
| | - Huangding Wen
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Huageng Yuan
- Department of Burns and Plastic Surgery, Fourth Medical Center of PLA General Hospital, No. 51, Fucheng Road, Haidian District, Beijing, 100048, China
| | - Jiatao Zhang
- Jiatao Zhang, Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Zhiqing Li
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Chuanan Shen
- Department of Burns and Plastic Surgery, Fourth Medical Center of PLA General Hospital, No. 51, Fucheng Road, Haidian District, Beijing, 100048, China
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18
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Luo B, Li L, Song XD, Chen HX, Yun DB, Wang L, Zhang Y. MicroRNA-7 attenuates secondary brain injury following experimental intracerebral hemorrhage via inhibition of NLRP3. J Stroke Cerebrovasc Dis 2024; 33:107670. [PMID: 38438086 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/25/2024] [Accepted: 03/01/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND AND PURPOSE The pathophysiological mechanisms underlying brain injury resulting from intracerebral hemorrhage (ICH) remain incompletely elucidated, and efficacious therapeutic interventions to enhance the prognosis of ICH patients are currently lacking. Previous research indicates that MicroRNA-7 (miR-7) can suppress the expression of Nod-like receptor protein 3 (NLRP3), thereby modulating neuroinflammation in Parkinson's disease pathogenesis. However, the potential regulatory effects miR-7 on NLRP3 inflammasome after ICH are yet to be established. This study aims to ascertain whether miR-7 mitigates secondary brain injury following experimental ICH by inhibiting NLRP3 and to investigate the underlying mechanisms. METHODS An ICH model was established by stereotaxically injecting 100 μL of autologous blood into the right basal ganglia of Sprague-Dawley (SD) rats. Subsequently, these rats were allocated into three groups: sham, ICH + Vehicle, and ICH + miR-7, each comprising 18 animals. Twelve hours post-modeling, rats received intraventricular injections of 10 μL physiological saline, 10 μL phosphate, and 10 μL phosphate-buffered saline solution containing 0.5 nmol of miR-7 mimics, respectively. Neurological function was assessed on day three post-modeling, followed by euthanasia for brain tissue collection. Brain water content was determined using the dry-wet weight method. The expression of inflammatory cytokines in cerebral tissues surrounding the hematoma was analyzed through immunohistochemistry and Western blot assays. These cytokines were re-evaluated using Reverse Transcription-Polymerase Chain Reaction (RT-PCR). Moreover, bioinformatics tools were employed to predict miR-7's binding to NLRP3. A wild-type luciferase reporter gene vector and a corresponding mutant vector were constructed, followed by transfection of miR-7 mimics into HEK293T cells to assess luciferase activity. RESULTS Our study demonstrates that the administration of miR-7 mimics markedly reduced neurological function scores and attenuated brain edema in rats following ICH. A significant upregulation of NLRP3 expression in microglia/macrophage adjacent to the hematoma was observed, substantially reduced after the treatment with miR-7 mimics. Furthermore, this intervention ameliorated neurodegenerative changes and effectively decreased the protein and mRNA levels of pro-inflammatory cytokines, namely TNF-α, IL-1β, IL-6, and Caspase1, in the cerebral tissues proximate to the hematomas. In addition, miR-7 mimics distinctly inhibited the luciferase activity associated with the wild-type reporter gene, an effect not mirrored in its mutant variant. CONCLUSIONS The miR-7 suppressed NLRP3 expression in microglia/macrophage to reduce the production of inflammatory cytokines, leading to conducting certain neuroprotection post-ICH in rats.
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Affiliation(s)
- Bo Luo
- Department of Neurosurgery, Nanchong Central Hospital, No. 97 Renmin South Road, Shunqing District 637000, Nanchong, Sichuan Province, PR China
| | - Lin Li
- Department of Neurosurgery, Chongqing Cancer Hospital, No.181 Hanyu Road, Shapingba District 400000, Chongqing City, PR China
| | - Xu-Dong Song
- Department of Neurosurgery, Nanchong Central Hospital, No. 97 Renmin South Road, Shunqing District 637000, Nanchong, Sichuan Province, PR China
| | - Hua-Xuan Chen
- Department of Neurosurgery, Nanchong Central Hospital, No. 97 Renmin South Road, Shunqing District 637000, Nanchong, Sichuan Province, PR China
| | - De-Bo Yun
- Department of Neurosurgery, Nanchong Central Hospital, No. 97 Renmin South Road, Shunqing District 637000, Nanchong, Sichuan Province, PR China
| | - Lin Wang
- Department of Neurosurgery, Nanchong Central Hospital, No. 97 Renmin South Road, Shunqing District 637000, Nanchong, Sichuan Province, PR China
| | - Yuan Zhang
- Department of Neurosurgery, Nanchong Central Hospital, No. 97 Renmin South Road, Shunqing District 637000, Nanchong, Sichuan Province, PR China.
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Cai Q, Zhao C, Xu Y, Lin H, Jia B, Huang B, Lin S, Chen D, Jia P, Wang M, Lin W, Zhang L, Chu J, Peng J. Qingda granule alleviates cerebral ischemia/reperfusion injury by inhibiting TLR4/NF-κB/ NLRP3 signaling in microglia. J Ethnopharmacol 2024; 324:117712. [PMID: 38184025 DOI: 10.1016/j.jep.2024.117712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/23/2023] [Accepted: 01/02/2024] [Indexed: 01/08/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Qingda granule (QDG) is effective for treating hypertension and neuronal damage after cerebral ischemia/reperfusion. However, the anti-neuroinflammatory effect of QDG on injury due to cerebral ischemia/reperfusion is unclear. AIM OF THE STUDY The objective was to evaluate the effectiveness and action of QDG in treating neuroinflammation resulting from cerebral ischemia/reperfusion-induced injury. MATERIALS AND METHODS Network pharmacology was used to predict targets and pathways of QDG. An in vivo rat model of middle cerebral artery occlusion/reperfusion (MCAO/R) as well as an in vitro model of LPS-stimulated BV-2 cells were established. Magnetic resonance imaging (MRI) was used to quantify the area of cerebral infarction, with morphological changes in the brain being assessed by histology. Immunohistochemistry (IHC) was used to assess levels of the microglial marker IBA-1 in brain tissue. Bioplex analysis was used to measure TNF-α, IL-1β, IL-6, and MCP-1 in sera and in BV-2 cell culture supernatants. Simultaneously, mRNA levels of these factors were examined using RT-qPCR analysis. Proteins of the TLR4/NF-κB/NLRP3 axis were examined using IHC in vivo and Western blot in vitro, respectively. While NF-κB translocation was assessed using immunofluorescence. RESULTS The core targets of QDG included TNF, NF-κB1, MAPK1, MAPK3, JUN, and TLR4. QDG suppressed inflammation via modulation of TLR4/NF-κB signaling. In addition, our in vivo experiments using MCAO/R rats demonstrated the therapeutic effect of QDG in reducing brain tissue infarction, improving neurological function, and ameliorating cerebral histopathological damage. Furthermore, QDG reduced the levels of TNF-α, IL-1β, IL-6, and MCP-1 in both sera from MCAO/R rats and supernatants from LPS-induced BV-2 cells, along with a reduction in the expression of the microglia biomarker IBA-1, as well as that of TLR4, MyD88, p-IKK, p-IκBα, p-P65, and NLRP3 in MCAO/R rats. In LPS-treated BV-2 cells, QDG downregulated the expression of proinflammatory factors and TLR4/NF-κB/NLRP3 signaling-related proteins. Additionally, QDG reduced translocation of NF-κB to the nucleus in both brains of MCAO/R rats and LPS-induced BV-2 cells. Moreover, the combined treatment of the TLR4 inhibitor TAK242 and QDG significantly reduced the levels of p-P65, NLRP3, and IL-6. CONCLUSIONS QDG significantly suppressed neuroinflammation by inhibiting the TLR4/NF-κB/NLRP3 axis in microglia. This suggests potential for QDG in treating ischemia stroke.
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Affiliation(s)
- Qiaoyan Cai
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Collaborative Innovation Center for Integrative Medicine in Prevention and Treatment of Major Chronic Cardiovascular Diseases, Fuzhou, Fujian 350122, China.
| | - Chunyu Zhao
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Yaoyao Xu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Haowei Lin
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Beibei Jia
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Bin Huang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Shan Lin
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Daxin Chen
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Peizhi Jia
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Meiling Wang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Wei Lin
- Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Ling Zhang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Collaborative Innovation Center for Integrative Medicine in Prevention and Treatment of Major Chronic Cardiovascular Diseases, Fuzhou, Fujian 350122, China.
| | - Jianfeng Chu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Collaborative Innovation Center for Integrative Medicine in Prevention and Treatment of Major Chronic Cardiovascular Diseases, Fuzhou, Fujian 350122, China.
| | - Jun Peng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Collaborative Innovation Center for Integrative Medicine in Prevention and Treatment of Major Chronic Cardiovascular Diseases, Fuzhou, Fujian 350122, China.
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20
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Li Y, Long W, Zhang H, Zhao M, Gao M, Guo W, Yu L. Irbesartan ameliorates diabetic nephropathy by activating the Nrf2/Keap1 pathway and suppressing NLRP3 inflammasomes in vivo and in vitro. Int Immunopharmacol 2024; 131:111844. [PMID: 38503013 DOI: 10.1016/j.intimp.2024.111844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 03/02/2024] [Accepted: 03/08/2024] [Indexed: 03/21/2024]
Abstract
OBJECTIVES Diabetic nephropathy (DN) is characterized by albuminuria and renal dysfunction caused by diabetes. At present there is no specific treatment for DN. Irbesartan (IRB) is an angiotensin receptor inhibitor indicated for the treatment of hypertension and DN. However, the underlying molecular mechanisms of IRB on DN remains obscure. METHODS RAW264.7 macrophages were incubated in RPMI-1640, cell viability was evaluated by CCK-8 assays, transcriptional level of proinflammatory cytokines and was measured by ELISA and qPCR, NLRP3 inflammasome and Nrf2/Keap1 related proteins were measured by Western blotting and immunohistochemistry. Streptozotocin (STZ)-induced diabetic male C57BL/6 mice were used to evaluate the therapeutic effect of IRB on DN. Key findings First, we found that IRB improved high glucose-induced cell inflammation by inhibiting the transcription of IL-1β and IL-18. IRB activated the Nrf2/Keap1 pathway and decreased the release of reactive oxygen species (ROS). IRB also suppressed the expression of NLRP3 and caspase-1. IRB combined with the N-acetylcysteine (NAC) significantly inhibited the activation of NLRP3 inflammasomes. Conversely, IRB combined with the Nrf2-related inhibitor ML385 enhanced NLRP3 inflammasome activation, suggesting that IRB suppressed NLRP3 inflammasome via the Nrf2 pathway. In vivo study, HE staining and immunohistochemistry analysis further showed that IRB ameliorated high glucose-induced renal injury by elevating the expression of the Nrf2/Keap1 signaling pathway and suppressing the proinflammatory cytokine and NLRP3 inflammasome activation. CONCLUSIONS Our results suggested that IRB ameliorates diabetic nephropathy by activating the Nrf2/Keap1 pathway and suppressing the NLRP3 inflammasomes in vivo and in vitro. These findings provide new therapeutic strategies of diabetic nephropathy.
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Affiliation(s)
- Yuan Li
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Department of Endocrinology and Department of Interventional Therapy of First Hospital of Jilin University, Jilin University, Changchun 130000, China; Innovation Pharmaceutical Research Institute of Shijiazhuang No. 4 Pharmaceutical Co., Ltd.;Hebei Guangxiang Pharmaceutical Co., Ltd., Shijiazhuang, 050000, China; Hebei Normal University, Shijiazhuang 050000, China
| | - Weihong Long
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Department of Endocrinology and Department of Interventional Therapy of First Hospital of Jilin University, Jilin University, Changchun 130000, China
| | - Haifeng Zhang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Department of Endocrinology and Department of Interventional Therapy of First Hospital of Jilin University, Jilin University, Changchun 130000, China
| | - Meng Zhao
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Department of Endocrinology and Department of Interventional Therapy of First Hospital of Jilin University, Jilin University, Changchun 130000, China
| | - Menghan Gao
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Department of Endocrinology and Department of Interventional Therapy of First Hospital of Jilin University, Jilin University, Changchun 130000, China
| | - Weiying Guo
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Department of Endocrinology and Department of Interventional Therapy of First Hospital of Jilin University, Jilin University, Changchun 130000, China.
| | - Lu Yu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Department of Endocrinology and Department of Interventional Therapy of First Hospital of Jilin University, Jilin University, Changchun 130000, China.
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21
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Sun X, Hou J, Ni T, Xu Z, Yan W, Kong L, Zhang Q. MCC950 attenuates plasma cell mastitis in an MDSC-dependent manner. Int Immunopharmacol 2024; 131:111803. [PMID: 38460298 DOI: 10.1016/j.intimp.2024.111803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 02/18/2024] [Accepted: 03/03/2024] [Indexed: 03/11/2024]
Abstract
Plasma cell mastitis (PCM) is a sterile inflammatory condition primarily characterized by periductal inflammation and ductal ectasia. Currently, there is a lack of non-invasive or minimally invasive treatment option other than surgical intervention. The NLRP3 inflammasome has been implicated in the pathogenesis and progression of various inflammatory diseases, however, its involvement in PCM has not yet been reported. In this study, we initially observed the pronounced upregulation of NLRP3 in both human and mouse PCM tissue and elucidated the mechanism underlying the attenuation of PCM through inhibition of NLRP3. We established the PCM murine model and collected samples on day 14, when inflammation reached its peak, for subsequent research purposes. MCC950, an NLRP3 inhibitor, was utilized to effectively ameliorate PCM by significantly reducing plasma cell infiltration in mammary tissue, as well as attenuate the expression of pro-inflammatory cytokines including IL-1β, TNF-α, IL-2, and IL-6. Mechanistically, we observed that MCC950 augmented the function of myeloid-derived suppressor cells (MDSCs), which in turn inhibited the infiltration of plasma cells. Furthermore, it was noted that depleting MDSCs greatly compromised the therapeutic efficacy of MCC950. Collectively, our findings suggest that the administration of MCC950 has the potential to impede the progression of PCM by augmenting MDSCs both numerically and functionally, ultimately treating PCM effectively. This study provides valuable insights into the utilization of pharmacological agents for PCM treatment.
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Affiliation(s)
- Xiaowei Sun
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, PR China
| | - Junchen Hou
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, PR China
| | - Tianyi Ni
- Department of Plastic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, PR China
| | - Zibo Xu
- Hepatobiliary/Liver Transplantation Center, the First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Living Donor Transplantation, Chinese Academy of Medical Sciences, Nanjing 210000, Jiangsu, PR China
| | - Wei Yan
- Department of Plastic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, PR China
| | - Lianbao Kong
- Hepatobiliary/Liver Transplantation Center, the First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Living Donor Transplantation, Chinese Academy of Medical Sciences, Nanjing 210000, Jiangsu, PR China
| | - Qian Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210000, Jiangsu, PR China.
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22
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Hayat C, Subramaniyan V, Alamri MA, Wong LS, Khalid A, Abdalla AN, Afridi SG, Kumarasamy V, Wadood A. Identification of new potent NLRP3 inhibitors by multi-level in-silico approaches. BMC Chem 2024; 18:76. [PMID: 38637900 DOI: 10.1186/s13065-024-01178-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 04/02/2024] [Indexed: 04/20/2024] Open
Abstract
Nod-like receptor protein 3 (NLRP-3), is an intracellular sensor that is involved in inflammasome activation, and the aberrant expression of NLRP3 is responsible for diabetes mellitus, its complications, and many other inflammatory diseases. NLRP3 is considered a promising drug target for novel drug design. Here, a pharmacophore model was generated from the most potent inhibitor, and its validation was performed by the Gunner-Henry scoring method. The validated pharmacophore was used to screen selected compounds databases. As a result, 646 compounds were mapped on the pharmacophore model. After applying Lipinski's rule of five, 391 hits were obtained. All the hits were docked into the binding pocket of target protein. Based on docking scores and interactions with binding site residues, six compounds were selected potential hits. To check the stability of these compounds, 100 ns molecular dynamic (MD) simulations were performed. The RMSD, RMSF, DCCM and hydrogen bond analysis showed that all the six compounds formed stable complex with NLRP3. The binding free energy with the MM-PBSA approach suggested that electrostatic force, and van der Waals interactions, played a significant role in the binding pattern of these compounds. Thus, the outcomes of the current study could provide insights into the identification of new potential NLRP3 inflammasome inhibitors against diabetes and its related disorders.
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Affiliation(s)
- Chandni Hayat
- Department of Biochemistry, Abdul Wali Khan University, Mardan, Mardan, 23200, Pakistan
| | - Vetriselvan Subramaniyan
- Pharmacology Unit, Jeffrey Cheah School of Medicine and Health Sciences, Monash University, Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500, Subang Jaya, Selangor Darul Ehsan, Malaysia.
- Center for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Chennai, 602105, India.
| | - Mubarak A Alamri
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, 11942, Al-Kharj, Saudi Arabia
| | - Ling Shing Wong
- Faculty of Health and Life Sciences, INTI International University, 71800, Nilai, Malaysia
| | - Asaad Khalid
- Substance Abuse and Toxicology Research Center, Jazan University, P.O. Box: 114, 45142, Jazan, Saudi Arabia.
| | - Ashraf N Abdalla
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al-Qura University, 21955, Makkah, Saudi Arabia
| | - Sahib Gul Afridi
- Department of Biochemistry, Abdul Wali Khan University, Mardan, Mardan, 23200, Pakistan
| | - Vinoth Kumarasamy
- Department of Parasitology and Medical Entomology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, 56000, Cheras, Kuala Lumpur, Malaysia.
| | - Abdul Wadood
- Department of Biochemistry, Abdul Wali Khan University, Mardan, Mardan, 23200, Pakistan.
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23
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Yun Q, Ma SF, Zhang WN, Gu M, Wang J. FoxG1 as a Potential Therapeutic Target for Alzheimer's Disease: Modulating NLRP3 Inflammasome via AMPK/mTOR Autophagy Pathway. Cell Mol Neurobiol 2024; 44:35. [PMID: 38630150 DOI: 10.1007/s10571-024-01467-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/27/2024] [Indexed: 04/19/2024]
Abstract
An increasing body of research suggests that promoting microglial autophagy hinders the neuroinflammation initiated though the NLRP3 inflammasome activation in Alzheimer's disease (AD). The function of FoxG1, a crucial transcription factor involved in cell survival by regulating mitochondrial function, remains unknown during the AD process and neuroinflammation occurs. In the present study, we firstly found that Aβ peptides induced AD-like neuroinflammation upregulation and downregulated the level of autophagy. Following low-dose Aβ25-35 stimulation, FoxG1 expression and autophagy exhibited a gradual increase. Nevertheless, with high-concentration Aβ25-35 treatment, progressive decrease in FoxG1 expression and autophagy levels as the concentration of Aβ25-35 escalated. In addition, FoxG1 has a positive effect on cell viability and autophagy in the nervous system. In parallel with the Aβ25-35 stimulation, we employed siRNA to decrease the expression of FoxG1 in N2A cells. A substantial reduction in autophagy level (Beclin1, LC3II, SQSTM1/P62) and a notable growth in inflammatory response (NLRP3, TNF-α, and IL-6) were observed. In addition, we found FoxG1 overexpression owned the effect on the activation of AMPK/mTOR autophagy pathway and siRNA-FoxG1 successfully abolished this effect. Lastly, FoxG1 suppressed the NLRP3 inflammasome and enhanced the cognitive function in AD-like mouse model induced by Aβ25-35. Confirmed by cellular and animal experiments, FoxG1 suppressed NLRP3-mediated neuroinflammation, which was strongly linked to autophagy regulated by AMPK/mTOR. Taken together, FoxG1 may be a critical node in the pathologic progression of AD and has the potential to serve as therapeutic target.
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Affiliation(s)
- Qi Yun
- Changzhou Children's Hospital Affiliated to Nantong University, 958 Zhongwu Avenue, Changzhou, 213000, Jiangsu Province, China
| | - Si-Fei Ma
- Changzhou Blood Center, 118 Canal Road, Changzhou, 213000, Jiangsu Province, China
| | - Wei-Ning Zhang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 213000, Jiangsu Province, China
| | - Meng Gu
- Changzhou Children's Hospital Affiliated to Nantong University, 958 Zhongwu Avenue, Changzhou, 213000, Jiangsu Province, China.
| | - Jia Wang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, 213000, Jiangsu Province, China.
- The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, Jiangsu Province, PR China.
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24
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Liu L, Lin L, Wang Y, Yan X, Li R, He M, Li H, Zhuo C, Li L, Zhang D, Wang X, Huang W, Li X, Mao Y, Chen H, Wu S, Jiang W, Zhu L. L-AP Alleviates Liver Injury in Septic Mice by Inhibiting Macrophage Activation via Suppressing NF-κB and NLRP3 Inflammasome/Caspase-1 Signal Pathways. J Agric Food Chem 2024; 72:8460-8475. [PMID: 38564364 DOI: 10.1021/acs.jafc.3c02781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Liver injury and progressive liver failure are severe life-threatening complications in sepsis, further worsening the disease and leading to death. Macrophages and their mediated inflammatory cytokine storm are critical regulators in the occurrence and progression of liver injury in sepsis, for which effective treatments are still lacking. l-Ascorbic acid 6-palmitate (L-AP), a food additive, can inhibit neuroinflammation by modulating the phenotype of the microglia, but its pharmacological action in septic liver damage has not been fully explored. We aimed to investigate L-AP's antisepticemia action and the possible pharmacological mechanisms in attenuating septic liver damage by modulating macrophage function. We observed that L-AP treatment significantly increased survival in cecal ligation and puncture-induced WT mice and attenuated hepatic inflammatory injury, including the histopathology of the liver tissues, hepatocyte apoptosis, and the liver enzyme levels in plasma, which were comparable to NLRP3-deficiency in septic mice. L-AP supplementation significantly attenuated the excessive inflammatory response in hepatic tissues of septic mice in vivo and in cultured macrophages challenged by both LPS and ATP in vitro, by reducing the levels of NLRP3, pro-IL-1β, and pro-IL-18 mRNA expression, as well as the levels of proteins for p-I-κB-α, p-NF-κB-p65, NLRP3, cleaved-caspase-1, IL-1β, and IL-18. Additionally, it impaired the inflammasome ASC spot activation and reduced the inflammatory factor contents, including IL-1β and IL-18 in plasma/cultured superannuants. It also prevented the infiltration/migration of macrophages and their M1-like inflammatory polarization while improving their M2-like polarization. Overall, our findings revealed that L-AP protected against sepsis by reducing macrophage activation and inflammatory cytokine production by suppressing their activation in NF-κB and NLRP3 inflammasome signal pathways in septic liver.
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Affiliation(s)
- Linling Liu
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Lan Lin
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Yingling Wang
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Xin Yan
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Ruli Li
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Min He
- Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - He Li
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Caili Zhuo
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Lingyu Li
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Die Zhang
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Xuemei Wang
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Wenjing Huang
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Xinyue Li
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Yan Mao
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Hongying Chen
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
- Core Facilities, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Sisi Wu
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
- Core Facilities, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Wei Jiang
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
| | - Ling Zhu
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, and Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, PR China
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Sun H, Ma X, Ma H, Li S, Xia Y, Yao L, Wang Y, Pang X, Zhong J, Yao G, Liu X, Zhang M. High glucose levels accelerate atherosclerosis via NLRP3-IL/ MAPK/NF-κB-related inflammation pathways. Biochem Biophys Res Commun 2024; 704:149702. [PMID: 38422898 DOI: 10.1016/j.bbrc.2024.149702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND As a chronic inflammatory disease, diabetes mellitus (DM) contributes to the development of atherosclerosis (AS). However, how the NLRP3 inflammasome participates in diabetes-related AS remains unclear. Therefore, this study aimed to elucidate the mechanism through which NLRP3 uses high glucose (HG) levels to promote AS. METHODS Serum and coronary artery tissues were collected from coronary artery disease (CAD) patients with and without DM, respectively. The expression of NLRP3 was detected, and the effects of this inflammasome on diabetes-associated AS were evaluated using streptozotocin (STZ)-induced diabetic apoE-/- mice injected with Adenovirus-mediated NLRP3 interference (Ad-NLRP3i). To elucidate the potential mechanism involved, ox-LDL-irritated human aortic smooth muscle cells were divided into the control, high-glucose, Si-NC, and Si-NLRP3 groups to observe the changes induced by downregulating NLRP3 expression. For up-regulating NLRP3, control and plasmid contained NLRP3 were used. TNF-α, IL-1β, IL-6, IL-18, phosphorylated and total p38, JNK, p65, and IκBα expression levels were detected following the downregulation or upregulation of NLRP3 expression. RESULTS Patients with comorbid CAD and DM showed higher serum levels and expression of NLRP3 in the coronary artery than those with only CAD. Moreover, mice in the Ad-NLRP3i group showed markedly smaller and more stable atherosclerotic lesions compared to those in other DM groups. These mice had decreased inflammatory cytokine production and improved glucose tolerance, which demonstrated the substantial effects of NLRP3 in the progression of diabetes-associated AS. Furthermore, using the siRNA or plasmid to downregulate or upregulate NLRP3 expression in vitro altered cytokines and the MAPK/NF-κB pathway. CONCLUSIONS NLRP3 expression was significantly increased under hyperglycemia. Additionally, it accelerated AS by promoting inflammation via the IL/MAPK/NF-κB pathway.
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Affiliation(s)
- Hui Sun
- National Key Laboratory for Innovation and Transformation of Luobing Theory, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China; Department of Cardiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Xiaotian Ma
- Department of Medicine Experimental Center, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Hong Ma
- Qingdao Branch of Shandong Public Health Clinical Center, Qingdao, China
| | - Shuen Li
- Department of Pathology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Yan Xia
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, 266000, Shandong, China
| | - Lijie Yao
- Department of Cardiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Yingcui Wang
- Department of Cardiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Xuelian Pang
- Department of Cardiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Jingquan Zhong
- National Key Laboratory for Innovation and Transformation of Luobing Theory, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China; Department of Cardiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Guihua Yao
- National Key Laboratory for Innovation and Transformation of Luobing Theory, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China; Department of Cardiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China
| | - Xiaoling Liu
- National Key Laboratory for Innovation and Transformation of Luobing Theory, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China.
| | - Mei Zhang
- National Key Laboratory for Innovation and Transformation of Luobing Theory, The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China.
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Guo J, Zhang T, Chen W, Tan J, Li X, Zheng A, Fu Y, Qiu T. The relationship between serum resolvin D1, NLRP3, cytokine levels, and adolescents with first-episode medication-naïve major depressive disorder. BMC Psychiatry 2024; 24:285. [PMID: 38627683 PMCID: PMC11020182 DOI: 10.1186/s12888-024-05724-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 03/27/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Inflammation has become a critical pathological mechanism of Major Depressive Disorder (MDD). NLRP3 is a critical inflammatory pathway to maintain the immune balance. Recently, preclinical evidence showed that Resolvin D1 might potentially offer a new option for antidepressant treatment due to its protective effects through the inhibition of neuroinflammation. However, whether they have clinical value in the diagnosis and treatment evaluation of adolescent depression was unclear. METHODS Forty-eight untreated first-episode adolescent patients with moderate to severe major depressive disorder, as well as 30 healthy adolescents (HCs, age and gender-matched), were enrolled for this study. Their ages ranged from 13 to 18 (15.75 ± 1.36) years. The patients were treated with fluoxetine for 6-8 weeks. HDRS-17 was used to evaluate the severity of depressive symptoms. Venous blood samples were collected at baseline for the two groups and at the time-point of post-antidepressant treatment for the patients. Serum concentrations of RvD1, NLRP3, IL-1β, IL-18, and IL-4 were measured by enzyme-linked immunosorbent assays (ELISA) pre- and post-fluoxetine treatment. RESULTS Serum levels of RvD1 and anti-inflammatory cytokine IL-4 were significantly elevated in adolescents with MDD compared to healthy adolescents, but no significant difference in NLRP3, IL-1β, and IL-18 between the two groups. Meanwhile, RvD1 (positively) and IL-4 (negatively) were correlated with the severity of symptoms (HDRS-17 scores) after adjusting age, gender, and BMI. Interestingly, fluoxetine treatment significantly reduced the serum levels of RvD1, NLRP3, IL-1β, and IL-18 in MDD adolescents but increased the levels of IL-4 relative to baseline. Furthermore, we observed that serum levels of RvD1 might be an excellent distinguishing indicator for depression and healthy adolescents. CONCLUSIONS Our study is the first to compare RvD1 and NLRP3 between adolescent MDD and HCs. Our findings of reactive increase of RvD1 in adolescent MDD comprised a novel and critical contribution. Our results showed the presence of inflammation resolution unbalanced in adolescents with MDD and indicated that RvD1 might be an ideal biomarker for diagnosing and treating adolescent MDD.
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Affiliation(s)
- Jiamei Guo
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University, 400016, Chongqing, P.R. China
| | - Tanwei Zhang
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University, 400016, Chongqing, P.R. China
| | - Wanjun Chen
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University, 400016, Chongqing, P.R. China
| | - Jianyu Tan
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University, 400016, Chongqing, P.R. China
| | - Xiao Li
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University, 400016, Chongqing, P.R. China
| | - Anhai Zheng
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University, 400016, Chongqing, P.R. China
| | - Yixiao Fu
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University, 400016, Chongqing, P.R. China
| | - Tian Qiu
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University, 400016, Chongqing, P.R. China.
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Peng C, Wang Y, Xie J, Lei J, Zhou B. Methylated urolithin A, mitigates cognitive impairment by inhibiting NLRP3 inflammasome and ameliorating mitochondrial dysfunction in aging mice. Neuropharmacology 2024; 252:109950. [PMID: 38636727 DOI: 10.1016/j.neuropharm.2024.109950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 04/02/2024] [Accepted: 04/10/2024] [Indexed: 04/20/2024]
Abstract
Effective therapeutic interventions for elderly patients are lacking, despite advances in pharmacotherapy. Methylated urolithin A (mUro A), a modified ellagitannin (ET)-derived metabolite, exhibits anti-inflammatory, antioxidative, and anti-apoptotic effects. Current research has primarily investigated the neuroprotective effects of mUroA in aging mice and explored the underlying mechanisms. Our study used an in vivo aging model induced by D-galactose (D-gal) to show that mUro A notably improved learning and memory, prevented synaptic impairments by enhancing synaptic protein expression and increasing EPSCs, and reduced oxidative damage in aging mice. mUro A alleviated the activation of the NOD-like receptor thermal protein domain-associated protein 3 (NLRP3) inflammasome, leading to reduced glial cell activity and neuroinflammation in both accelerated aging and naturally senescent mouse models. Moreover, mUroA enhanced the activity of TCA cycle enzymes (PDH, CS, and OGDH), decreased 8-OHdG levels, and raised ATP and NAD+ levels within the mitochondria. At the molecular level, mUro A decreased phosphorylated p53 levels and increased the expression of peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α), thus enhancing mitochondrial function. In conclusion, mUro A alleviates cognitive impairment in aging mice by suppressing neuroinflammation through NLRP3 inflammasome inhibition and restoring mitochondrial function via the p53-PGC-1α pathway. This suggests its potential therapeutic agent for brain aging and aging-related diseases.
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Affiliation(s)
- Chen Peng
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, P. R. China.
| | - Yulai Wang
- Department of Pharmacy, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Hubei, 435099, P. R. China
| | - Jing Xie
- Department of Pharmacy, Wuhan Tongren Hospital, Wuhan, Hubei, 430074, P. R. China
| | - Jiexin Lei
- Department of Endocrinology, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, P. R. China
| | - Benhong Zhou
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, P. R. China
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Fang C, Zuo K, Liu Z, Xu L, Yang X. Disordered GPR43/ NLRP3 expression in peripheral leukocytes of patients with atrial fibrillation is associated with intestinal short chain fatty acids levels. Eur J Med Res 2024; 29:233. [PMID: 38622672 PMCID: PMC11017637 DOI: 10.1186/s40001-024-01825-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/31/2024] [Indexed: 04/17/2024] Open
Abstract
BACKGROUND Atrial fibrillation (AF) is associated with circulating inflammation. Short-chain fatty acids (SCFAs) derived from gut microbiota (GM) regulate leukocyte function and inhibit the release of inflammatory cytokines, which are partly mediated by the G-protein-coupled receptor 43 (GPR43) signaling. This study aimed to investigate the expression of GPR43/NOD-like receptors family pyrin domain containing 3 (NLRP3) in leukocytes and the interaction with intestinal SCFAs levels in AF patients. METHODS Expressions of GPR43 and NLRP3 mRNA in peripheral blood leukocytes from 23 AF patients and 25 non-AF controls were detected by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). Expressions of leukocyte GPR43 and NLRP3 protein were evaluated by western blot analysis. The levels of plasma IL-1β were measured by enzyme-linked immunosorbent assay (ELISA). The fecal SCFAs levels based on GC/MS metabolome of corresponding 21 controls and 14 AF patients were acquired from our published dataset. To evaluate the expression of NLRP3 and GPR43 and the release of IL-1β, human THP-1 cells were stimulated with or without SCFAs (acetate, propionate, and butyrate), lipopolysaccharide (LPS), and nigericin in vitro, respectively. RESULTS Compared to the controls, the mRNA expression in peripheral leukocytes was significantly reduced in AF patients (P = 0.011) coupled with the increase in downstream leukocyte NLRP3 mRNA expression (P = 0.007) and plasma IL-1β levels (P < 0.001), consistent with changes in GPR43 and NLRP3 protein expression. Furthermore, leukocyte GPR43 mRNA levels were positively correlated with fecal GM-derived acetic acid (P = 0.046) and negatively correlated with NLRP3 mRNA expression (P = 0.024). In contrast to the negative correlation between left atrial diameter (LAD) and GPR43 (P = 0.008), LAD was positively correlated with the leukocyte NLRP3 mRNA levels (P = 0.024). Subsequent mediation analysis showed that 68.88% of the total effect of intestinal acetic acid on AF might be mediated by leukocyte GPR43/NLRP3. The constructed GPR43-NLRP3 score might have a predictive potential for AF detection (AUC = 0.81, P < 0.001). Moreover, SCFAs treatment increased GPR43 expression and remarkably reduced LPS/nigericin-induced NLRP3 expression and IL-1β release in human THP-1 cells in vitro. CONCLUSIONS Disrupted interactions between GPR43 and NLRP3 expression in peripheral blood leukocytes, associated with reduced intestinal GM-derived SCFAs, especially acetic acid, may be involved in AF development and left atrial enlargement by enhancing circulating inflammation.
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Affiliation(s)
- Chen Fang
- Department of Cardiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing University, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Kun Zuo
- Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Heart Center, Capital Medical University, 8th Gongtinanlu Rd, Chaoyang District, Beijing, 100020, China
| | - Zheng Liu
- Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Heart Center, Capital Medical University, 8th Gongtinanlu Rd, Chaoyang District, Beijing, 100020, China.
| | - Li Xu
- Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Heart Center, Capital Medical University, 8th Gongtinanlu Rd, Chaoyang District, Beijing, 100020, China.
| | - Xinchun Yang
- Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Heart Center, Capital Medical University, 8th Gongtinanlu Rd, Chaoyang District, Beijing, 100020, China.
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Zhang GL, Liu Y, Liu YF, Huang XT, Tao Y, Chen ZH, Lai HL. Teneligliptin mitigates diabetic cardiomyopathy by inhibiting activation of the NLRP3 inflammasome. World J Diabetes 2024; 15:724-734. [DOI: 10.4239/wjd.v15.i4.724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 12/20/2023] [Accepted: 02/27/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND Diabetic cardiomyopathy (DCM), which is a complication of diabetes, poses a great threat to public health. Recent studies have confirmed the role of NLRP3 (NOD-like receptor protein 3) activation in DCM development through the inflammatory response. Teneligliptin is an oral hypoglycemic dipeptidyl peptidase-IV inhibitor used to treat diabetes. Teneligliptin has recently been reported to have anti-inflammatory and protective effects on myocardial cells.
AIM To examine the therapeutic effects of teneligliptin on DCM in diabetic mice.
METHODS Streptozotocin was administered to induce diabetes in mice, followed by treatment with 30 mg/kg teneligliptin.
RESULTS Marked increases in cardiomyocyte area and cardiac hypertrophy indicator heart weight/tibia length reductions in fractional shortening, ejection fraction, and heart rate; increases in creatine kinase-MB (CK-MB), aspartate transaminase (AST), and lactate dehydrogenase (LDH) levels; and upregulated NADPH oxidase 4 were observed in diabetic mice, all of which were significantly reversed by teneligliptin. Moreover, NLRP3 inflammasome activation and increased release of interleukin-1β in diabetic mice were inhibited by teneligliptin. Primary mouse cardiomyocytes were treated with high glucose (30 mmol/L) with or without teneligliptin (2.5 or 5 µM) for 24 h. NLRP3 inflammasome activation. Increases in CK-MB, AST, and LDH levels in glucose-stimulated cardiomyocytes were markedly inhibited by teneligliptin, and AMP (p-adenosine 5‘-monophosphate)-p-AMPK (activated protein kinase) levels were increased. Furthermore, the beneficial effects of teneligliptin on hyperglycaemia-induced cardiomyocytes were abolished by the AMPK signaling inhibitor compound C.
CONCLUSION Overall, teneligliptin mitigated DCM by mitigating activation of the NLRP3 inflammasome.
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Affiliation(s)
- Gu-Lao Zhang
- Department of Cardiology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang 330000, Jiangxi Province, China
| | - Yuan Liu
- Department of Cardiology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang 330000, Jiangxi Province, China
| | - Yan-Feng Liu
- Department of Cardiology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang 330000, Jiangxi Province, China
| | - Xian-Tao Huang
- Department of Cardiology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang 330000, Jiangxi Province, China
| | - Yu Tao
- Department of Cardiology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang 330000, Jiangxi Province, China
| | - Zhen-Huan Chen
- Department of Cardiology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang 330000, Jiangxi Province, China
| | - Heng-Li Lai
- Department of Cardiology, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang 330000, Jiangxi Province, China
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Bazaz MR, Asthana A, Dandekar MP. Chitosan revokes controlled-cortical impact generated neurological aberrations in circadian disrupted mice via TLR4- NLRP3 axis. Eur J Pharmacol 2024; 969:176436. [PMID: 38423243 DOI: 10.1016/j.ejphar.2024.176436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 02/16/2024] [Accepted: 02/16/2024] [Indexed: 03/02/2024]
Abstract
The severity of inevitable neurological deficits and long-term psychiatric disorders in the aftermath of traumatic brain injury is influenced by pre-injury biological factors. Herein, we investigated the therapeutic effect of chitosan lactate on neurological and psychiatric aberrations inflicted by circadian disruption (CD) and controlled-cortical impact (CCI) injury in mice. Firstly, CD was developed in mice by altering sporadic day-night cycles for 2 weeks. Then, CCI surgery was performed using a stereotaxic ImpactOne device. Mice subjected to CCI displayed a significant disruption of motor coordination at 1-, 3- and 5-days post-injury (DPI) in the rotarod test. These animals showed anxiety- and depression-like behaviors in the elevated plus maze and forced-swim test at 14 and 15 DPI, respectively. Notably, mice subjected to CD + CCI exhibited severe cognitive impairment in Y-maze and novel object recognition tasks. The compromised neurological, psychiatric, and cognitive functions were mitigated in chitosan-treated mice (1 and 3 mg/mL). Immunohistochemistry and real-time PCR assay results revealed the magnified responses of prima facie biomarkers like glial-fibrillary acidic protein and ionized calcium-binding adaptor molecule 1 in the pericontusional brain region of the CD + CCI group, indicating aggravated inflammation. We also noted the depleted levels of brain-derived neurotrophic factor and augmented expression of toll-like receptor 4 (TLR4)-leucine-rich-containing family pyrin domain-containing 3 (NLRP3) signaling [apoptosis-associated-speck-like protein (ASC), caspase-1, and interleukin 1-β] in the pericontusional area of CD + CCI group. CCI-induced changes in the astrocyte-glia and aggravated immune responses were ameliorated in chitosan-treated mice. These results suggest that the neuroprotective effect of chitosan in CCI-induced brain injury may be mediated by inhibition of the TLR4-NLRP3 axis.
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Affiliation(s)
- Mohd Rabi Bazaz
- Department of Biological Sciences (Pharmacology and Toxicology), National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, 500037, India
| | - Amit Asthana
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, 500037, India
| | - Manoj P Dandekar
- Department of Biological Sciences (Pharmacology and Toxicology), National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, 500037, India.
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Brenneman DE, Kinney WA, McDonnell ME, Ippolito MJ, Ward SJ. Knockdown siRNA Targeting GPR55 Reveals Significant Differences Between the Anti-inflammatory Actions of KLS-13019 and Cannabidiol. J Mol Neurosci 2024; 74:41. [PMID: 38602576 DOI: 10.1007/s12031-024-02217-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 03/26/2024] [Indexed: 04/12/2024]
Abstract
KLS-13019 was reported previously to reverse paclitaxel-induced mechanical allodynia in a mouse model of chemotherapy-induced peripheral neuropathy (CIPN). Recent studies demonstrated that paclitaxel-induced increases in inflammatory markers (GPR55, NLRP3, and IL-1β) of dorsal root ganglion (DRG) cultures were shown to be reversed by KLS-13019 treatment. The mechanism of action for KLS-13019-mediated reversal of paclitaxel-induced neuroinflammation now has been explored using GPR55 siRNA. Pre-treatment of DRG cultures with GPR55 siRNA produced a 21% decrease of immunoreactive (IR) area for GPR55 in cell bodies and a 59% decrease in neuritic IR area, as determined by high-content imaging. Using a 24-h reversal treatment paradigm, paclitaxel-induced increases in the inflammatory markers were reversed back to control levels after KLS-3019 treatment. Decreases in these inflammatory markers produced by KLS-13019 were significantly attenuated by GPR55 siRNA co-treatment, with mean IR area responses being attenuated by 56% in neurites and 53% in cell bodies. These data indicate that the percentage decreases in siRNA-mediated attenuation of KLS-13019-related efficacy on the inflammatory markers were similar to the percentage knockdown observed for neuritic GPR55 IR area. Similar studies conducted with cannabidiol (CBD), the parent compound of KLS-13019, produced low efficacy (25%) reversal of all inflammatory markers that were poorly attenuated (29%) by GPR55 siRNA. CBD was shown previously to be ineffective in reversing paclitaxel-induced mechanical allodynia. The present studies indicated significant differences between the anti-inflammatory properties of KLS-13019 and CBD which may play a role in their observed differences in the reversibility of mechanical allodynia in a mouse model of CIPN.
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Affiliation(s)
- Douglas E Brenneman
- Kannalife Sciences, Inc, Pennsylvania Biotechnology Center, 3805 Old Easton Road, Doylestown, PA, 18902, USA.
| | - William A Kinney
- Kannalife Sciences, Inc, Pennsylvania Biotechnology Center, 3805 Old Easton Road, Doylestown, PA, 18902, USA
| | - Mark E McDonnell
- Kannalife Sciences, Inc, Pennsylvania Biotechnology Center, 3805 Old Easton Road, Doylestown, PA, 18902, USA
| | - Michael J Ippolito
- Department of Neural Science, Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, 19140, USA
| | - Sara Jane Ward
- Department of Neural Science, Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, 19140, USA
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He J, Xu M, Wu S. Rutin alleviates Sjogren's syndrome via CaR/ NLRP3/NF-κB signal pathway. In Vitro Cell Dev Biol Anim 2024:10.1007/s11626-024-00893-4. [PMID: 38587579 DOI: 10.1007/s11626-024-00893-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 03/15/2024] [Indexed: 04/09/2024]
Abstract
Sjogren's syndrome (SS) is an autoimmune disease. Its mechanism and treatment methods are unclear. The purpose of this study was to investigate the effects of rutin (Ru) on SS. Proteomics was used to detect differential proteins in the submandibular glands of normal mice and SS mice. Salivary secretion (SAS) and salivary gland index (SGI) were detected. Oxidative stress and inflammatory cytokine in submandibular glands were detected. The levels of NLRP3, ASC, Caspase-1, IL-1β, and p-NF-κBp65 in submandibular gland tissues and submandibular gland cells of overexpressed calcium-sensing receptor (over-CaR) mice and overexpressed CaR primary submandibular gland cells (over-CaR-PSGs) were detected. In total, 327 differential proteins were identified in the submandibular gland tissues of SS mice compared to control mice. CaR was one of the most differential proteins and significantly increased compared to control mice. Ru could significantly increase SGI and SGI, and inhibit oxidative stress and inflammatory cytokine in submandibular glands. In addition, Ru was shown to further improve SS via regulation of the CaR/NOD-like receptor thermal protein domain associated protein 3 (NLRP3)/nuclear factor kappa-B (NF-κB) signal pathway. Overexpression of CaR counteracted partial activity of Ru. CaR may be an important target for the treatment of SS. In addition, Ru improved the SS via the CaR/NLRP3/NF-κB signal pathway. This study provides a basis for the treatments for SS.
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Affiliation(s)
- Jing He
- Department of Rheumatology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Meimei Xu
- Department of Rheumatology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Suling Wu
- Department of Rheumatology, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China.
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Yu T, Hou D, Zhao J, Lu X, Greentree WK, Zhao Q, Yang M, Conde DG, Linder ME, Lin H. NLRP3 Cys126 palmitoylation by ZDHHC7 promotes inflammasome activation. Cell Rep 2024; 43:114070. [PMID: 38583156 DOI: 10.1016/j.celrep.2024.114070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/14/2024] [Accepted: 03/20/2024] [Indexed: 04/09/2024] Open
Abstract
Nucleotide oligomerization domain (NOD)-like receptor protein 3 (NLRP3) inflammasome hyperactivation contributes to many human chronic inflammatory diseases, and understanding how NLRP3 inflammasome is regulated can provide strategies to treat inflammatory diseases. Here, we demonstrate that NLRP3 Cys126 is palmitoylated by zinc finger DHHC-type palmitoyl transferase 7 (ZDHHC7), which is critical for NLRP3-mediated inflammasome activation. Perturbing NLRP3 Cys126 palmitoylation by ZDHHC7 knockout, pharmacological inhibition, or modification site mutation diminishes NLRP3 activation in macrophages. Furthermore, Cys126 palmitoylation is vital for inflammasome activation in vivo. Mechanistically, ZDHHC7-mediated NLRP3 Cys126 palmitoylation promotes resting NLRP3 localizing on the trans-Golgi network (TGN) and activated NLRP3 on the dispersed TGN, which is indispensable for recruitment and oligomerization of the adaptor ASC (apoptosis-associated speck-like protein containing a CARD). The activation of NLRP3 by ZDHHC7 is different from the termination effect mediated by ZDHHC12, highlighting versatile regulatory roles of S-palmitoylation. Our study identifies an important regulatory mechanism of NLRP3 activation that suggests targeting ZDHHC7 or the NLRP3 Cys126 residue as a potential therapeutic strategy to treat NLRP3-related human disorders.
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Affiliation(s)
- Tao Yu
- Howard Hughes Medical Institute, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Dan Hou
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Jiaqi Zhao
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Xuan Lu
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Wendy K Greentree
- Department of Molecular Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Qian Zhao
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Min Yang
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Don-Gerard Conde
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Maurine E Linder
- Department of Molecular Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Hening Lin
- Howard Hughes Medical Institute, Department of Chemistry and Chemical Biology, Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA.
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Elrashidy RA, Mohamed HE, Abdel Aal SM, Mohamed SR, Tolba SM, Mahmoud YK. Oleuropein attenuates the nephrotoxic effect of sunitinib in rats: Unraveling the potential role of SIRT6/Notch-1/NLRP-3/IL-1β axis. Arch Biochem Biophys 2024; 755:109986. [PMID: 38582273 DOI: 10.1016/j.abb.2024.109986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
Sunitinib (SUN) is a chemotherapeutic agent clinically approved for treatment of metastatic renal carcinoma. Despite its remarkable benefits, various renal toxicities have been reported that limit its clinical uses. Oleuropein (OLE) is the main polyphenolic constituent of olive tree and mediates the majority of its valuable pharmacological activities. The current study examined the probable renoprotective effects of OLE against SUN-induced nephrotoxicity. Adult male albino rats were co-treated by SUN (25 mg/kg, 3 times/week, PO) with either a drug vehicle or OLE (60 mg/kg/day, daily, PO) for four weeks. A control group comprising of age-matched rats was used. Four weeks later, blood specimens were collected to assess kidney functions. Kidneys were harvested for biochemical and histopathological analyses. Administration of SUN induced kidney dysfunction, along with marked rises in endothelin-1 (ET-1) and monocyte chemotactic protein-1 (MCP-1) levels in renal tissues. Histological abnormalities were also detected in kidneys of SUN-treated rats including glomerular and tubular interstitial congestion along with interstitial fibrosis. On molecular levels, there was a decline in renal SIRT6 expression along with significant up-regulation of Notch-1, NLRP-3, interleukin -1β (IL-1β) and cleaved caspsase-3. All these changes were almost alleviated by OLE co-treatment. These findings suggest the implication of SIRT6/Notch-1/NLRP3/IL-1β axis in the pathogenesis of SUN-induced nephrotoxicity and highlight OLE as a prospective renoprotective agent during SUN chemotherapy to halt its renal toxicity likely through promotion of SIRT6 and suppression of Notch-1/NLRP3/IL-1β signaling pathway.
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Affiliation(s)
- Rania A Elrashidy
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt.
| | - Hoda E Mohamed
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Sara M Abdel Aal
- Histology & Cell Biology Department, Faculty of Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Samar R Mohamed
- Histology & Cell Biology Department, Faculty of Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Sara M Tolba
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Yasmin K Mahmoud
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
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Mansoure AN, Elshal M, Helal MG. Renoprotective effect of diacetylrhein on diclofenac-induced acute kidney injury in rats via modulating Nrf2/NF-κB/ NLRP3/GSDMD signaling pathways. Food Chem Toxicol 2024; 187:114637. [PMID: 38582345 DOI: 10.1016/j.fct.2024.114637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/27/2024] [Accepted: 03/31/2024] [Indexed: 04/08/2024]
Abstract
Diclofenac (DF)-induced acute kidney injury (AKI) is characterized by glomerular dysfunction and acute tubular necrosis. Due to limited treatment approaches, effective and safe drug therapy to protect against such AKI is still needed. Diacetylrhein (DAR), an anthraquinone derivative, has different antioxidant and anti-inflammatory properties. Therefore, the aim of the current study was to investigate the renoprotective effect of DAR on DF-induced AKI while elucidating the potential underlying mechanism. Our results showed that DAR (50 and 100 mg/kg) markedly abrogated DF-induced kidney dysfunction decreasing SCr, BUN, serum NGAL, and serum KIM1 levels. Moreover, DAR treatment remarkably maintained renal redox balance and reduced the levels of pro-inflammatory biomarkers in the kidney. Mechanistically, DAR boosted Nrf2/HO-1 antioxidant and anti-inflammatory response in the kidney while suppressing renal TLR4/NF-κB and NLRP3/caspase-1 inflammatory signaling pathways. In addition, DAR markedly inhibited renal pyroptosis via targeting of GSDMD activation. Collectively, this study confirmed that the interplay between Nrf2/HO-1 and TLR4/NF-κB/NLRP3/Caspase-1 signaling pathways and pyroptotic cell death mediates DF-induced AKI and reported that DAR has a dose-dependent renoprotective effect on DF-induced AKI in rats. This effect is due to powerful antioxidant, anti-inflammatory, and anti-pyroptotic activities that could provide a promising treatment approach to protect against DF-induced AKI.
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Affiliation(s)
| | - Mahmoud Elshal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Egypt.
| | - Manar G Helal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Egypt
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Wang H, Sun Y, Ma X, Yang T, Wang F. The Lactobacillus plantarum P-8 Probiotic Microcapsule Prevents DSS-Induced Colitis through Improving Intestinal Integrity and Reducing Colonic Inflammation in Mice. Nutrients 2024; 16:1055. [PMID: 38613088 PMCID: PMC11013935 DOI: 10.3390/nu16071055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
Probiotics, recognized as beneficial and active microorganisms, often face challenges in maintaining their functionality under harsh conditions such as exposure to stomach acid and bile salts. In this investigation, we developed probiotic microcapsules and assessed their protective effects and underlying mechanisms in a murine model of dextran sulfate sodium (DSS)-induced colitis using male C57BL/6J mice. The administration of the probiotic microcapsules significantly mitigated body weight loss, prevented colon length shortening, decreased the disease activity index scores, and reduced histopathological scores in mice with DSS-induced colitis. Concurrently, the microencapsulated probiotics preserved intestinal barrier integrity by upregulating the expressions of tight junction proteins ZO-1 and occludin, as well as the mucus layer component MUC-2. Moreover, the treatment with probiotic microcapsules suppressed the activation of the NLRP3 inflammasome signaling pathway in the context of DSS-induced colitis. In conclusion, these findings support the utilization of probiotic microcapsules as a potential functional food ingredient to maintain the permeability of the intestinal barrier and alleviate colonic inflammation in UC.
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Affiliation(s)
| | | | | | | | - Feng Wang
- Department of Food Science, School of Biochemical Engineering, Beijing Union University, Beijing100023, China; (H.W.); (Y.S.); (X.M.); (T.Y.)
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Dai Y, Xu X, Huo X, Schuitemaker JHN, Faas MM. Cell type-dependent response to benzo(a)pyrene exposure of human placental cell lines under normoxic, hypoxic, and pro-inflammatory conditions. Ecotoxicol Environ Saf 2024; 276:116287. [PMID: 38579532 DOI: 10.1016/j.ecoenv.2024.116287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 03/28/2024] [Accepted: 03/31/2024] [Indexed: 04/07/2024]
Abstract
Benzo(a)pyrene (BaP) can be detected in the human placenta. However, little is known about the effects of BaP exposure on different placental cells under various conditions. In this study, we aimed to investigate the effects of BaP on mitochondrial function, pyrin domain-containing protein 3 (NLRP3) inflammasome, and apoptosis in three human trophoblast cell lines under normoxia, hypoxia, and inflammatory conditions. JEG-3, BeWo, and HTR-8/SVneo cell lines were exposed to BaP under normoxia, hypoxia, or inflammatory conditions for 24 h. After treatment, we evaluated cell viability, apoptosis, aryl hydrocarbon receptor (AhR) protein and cytochrome P450 (CYP) gene expression, mitochondrial function, including mitochondrial DNA copy number (mtDNAcn), mitochondrial membrane potential (ΔΨm), intracellular adenosine triphosphate (iATP), and extracellular ATP (eATP), nitric oxide (NO), NLPR3 inflammasome proteins, and interleukin (IL)-1β. We found that BaP upregulated the expression of AhR or CYP genes to varying degrees in all three cell lines. Exposure to BaP alone increased ΔΨm in all cell lines but decreased NO in BeWo and HTR-8/SVneo, iATP in HTR-8/SVneo, and cell viability in JEG-3, without affecting apoptosis. Under hypoxic conditions, BaP did not increase the expression of AhR and CYP genes in JEG-3 cells but increased CYP gene expression in two others. Pro-inflammatory conditions did not affect the response of the 3 cell lines to BaP with respect to the expression of CYP genes and changes in the mitochondrial function and NLRP3 inflammasome proteins. In addition, in HTR-8/SVneo cells, BaP increased IL-1β secretion in the presence of hypoxia and poly(I:C). In conclusion, our results showed that BaP affected mitochondrial function in trophoblast cell lines by increasing ΔΨm. This increased ΔΨm may have rescued the trophoblast cells from activation of the NLRP3 inflammasome and apoptosis after BaP treatment. We also observed that different human trophoblast cell lines had cell type-dependent responses to BaP exposure under normoxia, hypoxia, or pro-inflammatory conditions.
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Affiliation(s)
- Yifeng Dai
- Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, 9713 GZ, Groningen, the Netherlands; Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 515041, Shantou, Guangdong, China.
| | - Xijin Xu
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 515041, Shantou, Guangdong, China; Department of Cell Biology and Genetics, Shantou University Medical College, 515041, Shantou, Guangdong, China
| | - Xia Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, 511443, Guangzhou, Guangdong, China
| | - Joost H N Schuitemaker
- Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, 9713 GZ, Groningen, the Netherlands; Research & Development, IQProducts, 9727 DL, Groningen, the Netherlands
| | - Marijke M Faas
- Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, 9713 GZ, Groningen, the Netherlands; Department of Obstetrics and Gynecology, University of Groningen, University Medical Center Groningen, 9713 GZ, Groningen, the Netherlands
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Liu Z, Du J, Wang Y, Song H, Lu L, Wu R, Jin C. The NLRP3 molecule is responsible for mediating the pyroptosis of intestinal mucosa cells and plays a crucial role in salmonellosis enteritis in chicks. Mol Immunol 2024; 168:47-50. [PMID: 38422886 DOI: 10.1016/j.molimm.2024.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/08/2024] [Accepted: 02/10/2024] [Indexed: 03/02/2024]
Abstract
Salmonella enteritis in poultry can result in reduced immune function, decreased growth rate, and increased mortality. Many farm salmonella strains have developed severe drug resistance and are less susceptible to multiple antibiotics. In the post-antibiotic era, it is of great significance to identify the mechanism of salmonella-induced enteritis in chicks to protect their health and ensure food safety. This article will elucidate the activation mechanism of NOD-like receptor protein 3 (NLRP3) inflammasomes in Salmonella enteritis and review the research on interventions targeting NLRP3 inflammasomes.
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Affiliation(s)
- Zhe Liu
- College of Life Sciences and Biotechnology, Heilongjiang Bayi Agricultural University, No. 5 Xinfeng Road, Daqing, Heilongjiang Province 163319, P.R. China
| | - Juan Du
- Department of Geriatrics, Zhuhai People's Hospital (Zhuhai Clinical Medical College of JinanUniversity), No. 79 Kangning Road, Xiangzhou District, Zhuhai, Guangdong Province 519000, China
| | - Yanhong Wang
- College of Life Sciences and Biotechnology, Heilongjiang Bayi Agricultural University, No. 5 Xinfeng Road, Daqing, Heilongjiang Province 163319, P.R. China
| | - Haoyu Song
- Department of Geriatrics, Zhuhai People's Hospital (Zhuhai Clinical Medical College of JinanUniversity), No. 79 Kangning Road, Xiangzhou District, Zhuhai, Guangdong Province 519000, China
| | - Ligong Lu
- Zhuhai People's Hospital (Zhuhai Clinical Medical College of JinanUniversity), No. 79 Kangning Road, Xiangzhou District, Zhuhai, Guangdong Province 519000, China
| | - Rui Wu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, No. 5 Xinfeng Road, Daqing, 163319, People's Republic of China
| | - Chenghao Jin
- College of Life Sciences and Biotechnology, Heilongjiang Bayi Agricultural University, No. 5 Xinfeng Road, Daqing, Heilongjiang Province 163319, P.R. China; National Coarse Cereals Engineering Research Center, Daqing 163319, PR China; Department of Food Science and Engineering, College of Food Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
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Ng MY, Lin T, Chen SH, Liao YW, Liu CM, Yu CC. Er:YAG laser suppresses pro-inflammatory cytokines expression and inflammasome in human periodontal ligament fibroblasts with Porphyromonas gingivalis-lipopolysaccharide stimulation. J Dent Sci 2024; 19:1135-1142. [PMID: 38618083 PMCID: PMC11010707 DOI: 10.1016/j.jds.2023.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/14/2023] [Indexed: 04/16/2024] Open
Abstract
Background/purpose Periodontitis is an inflammatory condition of the tooth-supporting structures triggered by the host's immune response towards the bacterial deposits around the teeth. It is well acknowledged that pro-inflammatory interleukin (IL)-6, IL-8, MCP-1 as well as the NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome, are the key modulators in the activation of this response. Erbium-doped yttrium-aluminium-garnet (Er:YAG) laser, a solid-state crystal laser have been commonly used in the treatment of periodontal diseases. However, little is understood about the molecular mechanism of the Er:YAG laser, especially in targeting the host immune response brought on by periodontal pathogens. Hence, the current study focused on the protective effects of Er:YAG laser on periodontitis in-vitro in terms of pro-inflammatory cytokines, chemokines and NLRP3 inflammasome expressions. Materials and methods Human periodontal ligament fibroblast (PDLFs) were first stimulated with lipopolysaccharides (LPS) from P. gingivalis (Pg-LPS) to simulate periodontitis. Cells were then irradiated with Er:YAG laser of ascending energy densities (3.6-6.3 J/cm2), followed by cell proliferation and wound healing assay. Next, the effects of Er:YAG laser on the expressions of IL-6, IL-8, MCP-1, NLRP3, and cleaved GSDMD were examined. Results Pg-LPS was found to reduce cell's proliferation rate and wound healing ability in PDLFs and these were rescued by Er:YAG laser irradiation. In addition, LPS stimuli resulted in a marked upregulation in the secretion of IL-6, IL-8 and MCP-1 as well as the mRNA and protein expression of NLRP3 and cleaved-GSDMD protein whereas Er:YAG laser suppressed the elicited phenomena. Conclusion To our knowledge, this is the first study to look into the laser's implication on the NLRP3 inflammasome in periodontitis models. Our study reveals a crucial role of Er:YAG laser in ameliorating periodontitis in-vitro through the modulation of IL-6, IL-8, MCP-1 and the NLRP3 inflammasome and highlights that the control of the NLRP3 inflammasome may become a potential approach for periodontitis.
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Affiliation(s)
- Min Yee Ng
- School of Dentistry, Chung Shan Medical University, Taichung, Taiwan
| | - Taichen Lin
- School of Dentistry, Chung Shan Medical University, Taichung, Taiwan
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Szu-Han Chen
- Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan
| | - Yi-Wen Liao
- Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chia-Ming Liu
- School of Dentistry, Chung Shan Medical University, Taichung, Taiwan
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Cheng-Chia Yu
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan
- Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan
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Ge XR, Zhao Y, Ren HR, Jiang FW, Liu S, Lou M, Huang YF, Chen MS, Wang JX, Li JL. Phthalate drives splenic inflammatory response via activating HSP60/TLR4/ NLRP3 signaling axis-dependent pyroptosis. Environ Pollut 2024; 346:123610. [PMID: 38382728 DOI: 10.1016/j.envpol.2024.123610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/03/2024] [Accepted: 02/17/2024] [Indexed: 02/23/2024]
Abstract
As the most produced phthalate, di-(2-ethylhexyl) phthalate (DEHP) is a widely environmental pollutant primarily used as a plasticizer, which cause the harmful effects on human health. However, the impact of DEHP on spleen and its underlying mechanisms are still unclear. Pyroptosis is a novel form of cell death induced by activating NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasomes and implicated in pathogenesis of numerous inflammatory diseases. The current study aimed to explore the impact of DEHP on immune inflammatory response in mouse spleen. In this study, the male ICR mice were treated with DEHP (200 mg/kg) for 28 days. Here, DEHP exposure caused abnormal pathohistological and ultrastructural changes, accompanied by inflammatory cells infiltration in mouse spleen. DEHP exposure arouse heat shock response that involves increase of heat shock proteins 60 (HSP60) expression. DEHP also elevated the expressions of toll-like receptor 4 (TLR4) and myeloid differentiation protein 88 (MyD88) proteins, as well as the activation of NF-κB pathway. Moreover, DEHP promoted NLRP3 inflammasome activation and triggered NLRP3 inflammasome-induced pyroptosis. Mechanistically, DEHP drives splenic inflammatory response via activating HSP60/TLR4/NLRP3 signaling axis-dependent pyroptosis. Our findings reveal that targeting HSP60-mediated TLR4/NLRP3 signaling axis may be a promising strategy for inflammatory diseases treatment.
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Affiliation(s)
- Xin-Ran Ge
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yi Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, China.
| | - Hao-Ran Ren
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Fu-Wei Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Shuo Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Ming Lou
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yi-Feng Huang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Ming-Shan Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jia-Xin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jin-Long Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, China.
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Liang Y, Han D, Zhang S, Sun L. FOSL1 regulates hyperproliferation and NLRP3-mediated inflammation of psoriatic keratinocytes through the NF-kB signaling via transcriptionally activating TRAF3. Biochim Biophys Acta Mol Cell Res 2024; 1871:119689. [PMID: 38367916 DOI: 10.1016/j.bbamcr.2024.119689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 02/05/2024] [Accepted: 02/09/2024] [Indexed: 02/19/2024]
Abstract
Psoriasis is a common and immune-mediated skin disease related to keratinocytes hyperproliferation and inflammation. Fos-like antigen-1 (FOSL1) is an important transcription factor involved in various diseases. FOSL1 has been reported to be differentially expressed in psoriasis. However, the roles and mechanism of FOSL1 in psoriasis progression remain largely unknown. FOSL1 is an upregulated transcription factor in psoriasis and increased in M5-treated HaCaT cells. FOSL1 had a diagnostic value in psoriasis, and positively associated with PASI score, TNF-α and IL-6 levels in psoriasis patients. FOSL1 silencing attenuated M5-induced HaCaT cell hyperproliferation through decreasing cell viability and proliferative ability and increasing cell apoptosis. FOSL1 knockdown mitigated M5-induced NLRP3 inflammasome activation and it-mediated inflammatory cytokine (IL-6, IL-8 and CCL17) expression. TRAF3 expression was increased in psoriasis patients and M5-treated HaCaT cells. FOSL1 transcriptionally activating TRAF3 in HaCaT cells. TRAF3 overexpression reversed the suppressive effects of FOSL1 silencing on M5-induced hyperproliferation and NLRP3-mediated inflammation. FOSL1 knockdown attenuated M5-induced NF-κB signaling activation by reducing TRAF3. Activation of NF-κB signaling reversed the effects of FOSL1 knockdown on hyperproliferation and inflammation in M5-treated cells. FOSL1 silencing prevented M5-induced hyperproliferation and NLRP3-mediated inflammation of keratinocytes by inhibiting TRAF3-mediated NF-κB activity, indicating FOSL1 might act as a therapeutic target of psoriasis.
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Affiliation(s)
- Yan Liang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China.
| | - Dan Han
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Shaojun Zhang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Liang Sun
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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Kiser C, Gonul CP, Genc S. Nrf2 activator Diethyl Maleate attenuates ROS mediated NLRP3 inflammasome activation in murine microglia. Cytotechnology 2024; 76:197-208. [PMID: 38495294 PMCID: PMC10940551 DOI: 10.1007/s10616-023-00609-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 11/06/2023] [Indexed: 03/19/2024] Open
Abstract
Microglia are the tissue-resident immune cells of the central nervous system. As a part of the innate immune response, NLR Family Pyrin Domain Containing Protein 3 (NLRP3) inflammasome activation leads to cleavage of caspase-1 and triggers secretion of proinflammatory cytokines and may also result in pyroptotic cell death. Inflammasome activation plays a crucial role in inflammatory conditions; aberrant activation of inflammasome contributes to the pathogenesis of neurodegenerative diseases. Diethyl Maleate (DEM) is a promising antiinflammatory chemical to alleviate inflammasome activation. In this study, NLRP3 inflammasome was activated in N9 murine microglia via 1 µg/ml LPS (Lipopolysaccharide) for 4 h and 5 mM ATP (Adenosine 5'-triphosphate) for 1 h, respectively. We demonstrated that 1 h pretreatment of DEM attenuated NLRP3 inflammasome activation in microglial cells. Besides, mitochondrial ROS decreased upon DEM pretreatment in inflammasome-induced cells. Likewise, it ameliorated pyroptotic cell death in microglia. DEM is a potent activator of Nrf2 transcription factor, the key regulator of the antioxidant response pathway. Nrf2 has been a significant target to decrease aberrant inflammasome activation through the antioxidant compounds, including DEM. Here, we have shown that DEM increased Nrf2 translocation to the nucleus, resulting in Nrf2 target gene expression in microglia. In conclusion, DEM is a promising protective agent against NLRP3 inflammasome activation.
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Affiliation(s)
- Cagla Kiser
- Izmir Biomedicine and Genome Center, Dokuz Eylul University Health Campus, Mithatpasa St. 58/5 Balcova, 35340 Izmir, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | - Ceren Perihan Gonul
- Izmir Biomedicine and Genome Center, Dokuz Eylul University Health Campus, Mithatpasa St. 58/5 Balcova, 35340 Izmir, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | - Sermin Genc
- Izmir Biomedicine and Genome Center, Dokuz Eylul University Health Campus, Mithatpasa St. 58/5 Balcova, 35340 Izmir, Turkey
- Department of Neuroscience, Health Science Institute, Dokuz Eylul University, Izmir, Turkey
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Li B, Liu Y, Chen D, Sun S. Comprehensive Analysis of Predictive Value and the potential therapeutic target of NLRP3 inflammasome in glioma based on tumor microenvironment. Clin Immunol 2024; 261:109918. [PMID: 38307475 DOI: 10.1016/j.clim.2024.109918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/09/2024] [Accepted: 01/22/2024] [Indexed: 02/04/2024]
Abstract
BACKGROUND Glioma exhibits high recurrence rates and poor prognosis. The nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome plays a crucial role in inflammation. There is a lack of research exploring the NLRP3 in glioma. METHODS We used several databases, networks, Western blotting, multiple immunofluorescence staining to analyze the role of NLRP3 in inflammatory tumor microenvironment (TME). RESULTS NLRP3 is higher-expression in glioma with a low mutation load. NLRP3 expression is linked to the infiltration of immune cells, chemokines, immunomodulators, and the TME. Signaling pathways, co-expression genes and interacting proteins contribute to the up-regulation of NLRP3. Patients responding to immunotherapy positively tend to have lower NLRP3 expression relating to the overall survival based on nomogram. Sensitivity to molecular medicines is observed in relation to NLRP3. CONCLUSION The NLRP3 inflammasome plays a pivotal role in TME which could serve as a higher predictive value biomarker and therapeutic target for glioma treatment.
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Affiliation(s)
- Bihan Li
- Nanjing municipal center for disease control and prevention, Nanjing, Jiangsu, China; Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Ying Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun, Jilin, China.
| | - Dawei Chen
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, Jilin, China.
| | - Shilong Sun
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China.
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Wang Z, Mao Q, Yuan Y, Wang C, Wei H. Shuangshi Tonglin Capsule treats benign prostatic hyperplasia through the ROS/ NLRP3 signaling pathway. Int Urol Nephrol 2024; 56:1259-1271. [PMID: 38036804 PMCID: PMC10923981 DOI: 10.1007/s11255-023-03874-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 10/07/2023] [Indexed: 12/02/2023]
Abstract
OBJECTIVE To explore the effects of the SSTL on BPH and clarify the therapeutic mechanisms. METHODS Animal model of BPH was established by castration and subcutaneous injection of TP into SD rats; rats were orally administered SSTL for 28 days while modeling. Detection of PI, LI and RI in rats, to observe histopathological changes and collagen deposition in the prostate tissue. Detects levels of sex hormones and inflammatory factors in serum and tissues of rats, the test kit detects levels of lipid peroxides and antioxidants in serum and tissues. Fluorescent staining analysis of tissue ROS; the expression of NLRP3 inflammatory vesicles was observed by immunohistochemistry; Western blotting detected the expression of NOX4, NOX2, NLRP3 inflammatory vesicles, ASC, Cleaved Caspase-1, Caspase-1, IL-1β. RESULTS After SSTL capsule treatment, the PI and RI of the rats decrease. HE and Masson staining showed that SSTL ameliorated the pathological damage and reduced collagen deposition in the prostate tissue of BPH rats; ELISA results showed that SSTL was able to reduce T, DHT, TNF-α, IL-1β levels in BPH rats. The test kit showed that SSTL made the levels of MDA, CAT and GSH-Px in the serum and prostate tissue of rats and increased the activity of SOD. The results of ROS fluorescence showed that the ROS level was reduced in SSTL group; Western blotting showed that SSTL could cause down-regulation of NOX4, NOX2, NLRP3, ASC, Cleaved Caspase-1, IL-1β protein expression. CONCLUSION SSTL can reduce the PI and RI in BPH rats, it can also inhibit the level of sex hormones and inflammatory factors in BPH rats, which thereby reducing the histopathological damage of prostate gland in BPH rats, and can treat BPH in rats through ROS/NLRP3 pathway.
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Affiliation(s)
- Ziqiang Wang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, 712046, Shaanxi, China
| | - Qian Mao
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, 712046, Shaanxi, China
| | - Yong Yuan
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, 712046, Shaanxi, China
| | - Chuan Wang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, 712046, Shaanxi, China
| | - Hao Wei
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, 712046, Shaanxi, China.
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Zack SR, Venkatesan M, Nikolaienko R, Cook B, Melki R, Zima AV, Campbell EM. Altered vacuole membrane protein 1 (VMP1) expression is associated with increased NLRP3 inflammasome activation and mitochondrial dysfunction. Inflamm Res 2024; 73:563-580. [PMID: 38411635 DOI: 10.1007/s00011-024-01856-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 12/26/2023] [Accepted: 01/26/2024] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND Altered expression of vacuole membrane protein 1 (VMP1) has recently been observed in the context of multiple sclerosis and Parkinson's disease (PD). However, how changes in VMP1 expression may impact pathogenesis has not been explored. OBJECTIVE This study aimed to characterize how altered VMP1 expression affects NLRP3 inflammasome activation and mitochondrial function. METHODS VMP1 expression was depleted in a monocytic cell line using CRISPR-Cas9. The effect of VMP1 on NLRP3 inflammasome activation was examined by stimulating cells with LPS and ATP or α-synuclein fibrils. Inflammasome activation was determined by caspase-1 activation using both a FLICA assay and a biosensor as well as by the release of proinflammatory molecules measured by ELISA. RNA-sequencing was utilized to define global gene expression changes resulting from VMP1 deletion. SERCA activity and mitochondrial function were investigated using various fluorescence microscopy-based approaches including a novel method that assesses the function of individual mitochondria in a cell. RESULTS Here, we report that genetic deletion of VMP1 from a monocytic cell line resulted in increased NLRP3 inflammasome activation and release of proinflammatory molecules. Examination of the VMP1-dependent changes in these cells revealed that VMP1 deficiency led to decreased SERCA activity and increased intracellular [Ca2+]. We also observed calcium overload in mitochondria in VMP1 depleted cells, which was associated with mitochondrial dysfunction and release of mitochondrial DNA into the cytoplasm and the extracellular environment. CONCLUSIONS Collectively, these studies reveal VMP1 as a negative regulator of inflammatory responses, and we postulate that decreased expression of VMP1 can aggravate the inflammatory sequelae associated with neurodegenerative diseases like PD.
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Affiliation(s)
- Stephanie R Zack
- Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University Chicago, Maywood, IL, 60153, USA
| | - Meghana Venkatesan
- Department of Integrative Cell Biology, Stritch School of Medicine, Loyola University Chicago, Maywood, IL, 60153, USA
| | - Roman Nikolaienko
- Department of Cell and Molecular Physiology, Stritch School of Medicine, Loyola University Chicago, Maywood, IL, 60153, USA
| | - Ben Cook
- Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University Chicago, Maywood, IL, 60153, USA
| | - Ronald Melki
- Institut Francois Jacob (MIRCen), CEA, CNRS, 92260, Fontenay-Aux-Roses, France
| | - Aleksey V Zima
- Department of Cell and Molecular Physiology, Stritch School of Medicine, Loyola University Chicago, Maywood, IL, 60153, USA
| | - Edward M Campbell
- Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University Chicago, Maywood, IL, 60153, USA.
- Department of Integrative Cell Biology, Stritch School of Medicine, Loyola University Chicago, Maywood, IL, 60153, USA.
- Department of Neuroscience, Stritch School of Medicine, Loyola University Chicago, Maywood, IL, 60153, USA.
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Wang B, Shi M, Yu C, Pan H, Shen H, Du Y, Zhang Y, Liu B, Xi D, Sheng J, Huang H, Ding G. NLRP3 Inflammasome-dependent Pathway is Involved in the Pathogenesis of Polycystic Ovary Syndrome. Reprod Sci 2024; 31:1017-1027. [PMID: 37815748 DOI: 10.1007/s43032-023-01348-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 08/30/2023] [Indexed: 10/11/2023]
Abstract
Accumulating evidence has shown that inflammation is a key process in polycystic ovary syndrome (PCOS). Nucleotide-binding oligomerization domain-, leucine-rich repeat-, and pyrin domain-containing 3 (NLRP3) inflammasomes play an essential role in inflammation. We investigated the expression of NLRP3 inflammasome in PCOS and its underlying mechanisms. Human granulosa cells (GCs) were isolated from patients with PCOS and control women who underwent in vitro fertilization and embryo transfer. Ovarian specimens were collected from mice with polycystic ovarian changes induced by a high-fat diet and letrozole. RNA sequencing (RNA-Seq) was performed on a granulosa cell line (KGN) overexpressing NLRP3. Polymerase chain reaction (PCR) was performed to quantify the differentially expressed genes of interest. NLRP3 and caspase-1 expression was significantly higher in GCs from patients with PCOS than in GCs from the control group. Increased NLRP3 and caspase-1 expression was also detected by immunohistochemistry in the GCs of a mouse model of polycystic ovarian changes. The serum IL-18 concentration in PCOS-like mice was significantly higher than that in control mice. Following NLRP3 overexpression in KGN cells, the genes involved in N-glycan processing, steroidogenesis, oocyte maturation, autophagy, and apoptosis were upregulated. The RT-qPCR results revealed that the expression levels of GANAB, ALG-5, HSD3B2, ULK1, PTK2B, and Casp7 in KGN cells after NLRP3 overexpression were significantly higher than those in control cells, which was consistent with the RNA-Seq results. Taken together, the NLRP3 inflammasome-dependent pathway is involved in the pathogenesis of PCOS not only by mediating pyroptosis, but also by regulating glycan synthesis, sex hormone synthesis, autophagy, and apoptosis in GCs.
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Affiliation(s)
- Bo Wang
- Department of Reproductive Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092, China.
| | - Minfeng Shi
- Shanghai Changhai Hospital, Shanghai, 200433, China
| | - Chuanjin Yu
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, 200011, China
| | - Hong Pan
- School of Medicine, International Peace Maternity and Child Health Hospital, Shanghai Jiaotong University, Shanghai, 200030, China
| | - Haiqing Shen
- School of Medicine, International Peace Maternity and Child Health Hospital, Shanghai Jiaotong University, Shanghai, 200030, China
| | - Yatao Du
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Yi Zhang
- Department of Reproductive Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Bin Liu
- Department of Reproductive Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Di Xi
- Department of Reproductive Medicine, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092, China
| | - Jianzhong Sheng
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
- School of Medicine, The Fourth Affiliated Hospital of Zhejiang University, Yiwu, 322000, China
| | - Hefeng Huang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, 200011, China.
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China.
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China.
| | - Guolian Ding
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, 200011, China.
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China.
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Park H, Ko R, Seo J, Ahn GY, Choi SW, Kwon M, Lee SY. Octyl gallate has potent anti-inflammasome activity by directly binding to NLRP3 LRR domain. J Cell Physiol 2024; 239:e31196. [PMID: 38240115 DOI: 10.1002/jcp.31196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 01/03/2024] [Accepted: 01/08/2024] [Indexed: 04/12/2024]
Abstract
The NOD-, LRR-, and Pyrin domain-containing protein 3 (NLRP3) inflammasome plays key roles in regulating inflammation. Numerous studies show that the abnormal activation of NLRP3 associates with the initiation and progression of various diseases. Hence, the NLRP3 inflammasome may be a promising therapeutic target for these diseases. Octyl gallate (OG) is a small molecule with antioxidant, antimicrobial, antifungal, and anti-inflammatory activities; however, the mechanism underlying its anti-inflammatory activity is still unclear. Here, we developed a screening system for NLRP3-inflammasome inhibitors. A total of 3287 small molecules were screened for inhibitors of nigericin-induced NLRP3 oligomerization. OG was identified as a novel inhibitor. We show that OG directly targets the LRR domain of NLRP3 and thereby blocks the inflammatory cascade of the NLRP3 inflammasome. This contrasts with the mode-of-action of other direct NLRP3 inhibitors, which all bind to the NACHT domain of NLRP3. Interestingly, OG also inhibits the priming step by downregulating the Raf-MEK1/2-ERK1/2 axis. Thus, OG inhibits the NLRP3 inflammasome by two distinct mechanisms. Importantly, OG injection ameliorated the inflammation in mouse models of foot gout and sepsis. Our study identifies OG as a potential therapeutic agent for NLRP3-associated diseases.
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Affiliation(s)
- Hana Park
- Department of Life Science, Ewha Womans University, Seoul, South Korea
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, South Korea
| | - Ryeojin Ko
- Department of Life Science, Ewha Womans University, Seoul, South Korea
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, South Korea
| | - Jeongin Seo
- Department of Life Science, Ewha Womans University, Seoul, South Korea
| | - Guk Young Ahn
- Department of Biotechnology, Biomedical and Chemical Engineering, The Catholic University of Korea, Gyeonggi-do, South Korea
| | - Sung-Wook Choi
- Department of Biotechnology, Biomedical and Chemical Engineering, The Catholic University of Korea, Gyeonggi-do, South Korea
| | - Mijung Kwon
- Department of Life Science, Ewha Womans University, Seoul, South Korea
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, South Korea
- Multitasking Macrophage Research Center, Ewha Womans University, Seoul, South Korea
| | - Soo Young Lee
- Department of Life Science, Ewha Womans University, Seoul, South Korea
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, South Korea
- Multitasking Macrophage Research Center, Ewha Womans University, Seoul, South Korea
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Ozdamar Unal G, Kumbul D, Hekimler Ozturk K, Erkılınc G, Donmez F, Dogan Kıran E, Yuceer RO. The effect of Vortioxetine on the NLRP3 pathway and microglial activity in the prefrontal cortex in an experimental model of depression. Immunopharmacol Immunotoxicol 2024; 46:264-275. [PMID: 38284357 DOI: 10.1080/08923973.2024.2308268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 01/15/2024] [Indexed: 01/30/2024]
Abstract
BACKGROUND Increasing evidence suggests that early life stress (ELS) and neuroinflammation are associated with the pathophysiology of depression. The purpose of this study was to determine the effects of Vortioxetine (VOR), a novel antidepressant, on ELS-induced behavioral changes and neuroinflammation. METHOD Wistar Albino 4-week-old male rats were divided into four groups: control; chronic unpredictable stress (CUMS), VOR, CUMS + VOR. Neurobehavioral assessment was performed on the first, 21st, and 42nd days. RT-PCR was used to detect the expression of P2X7, NLRP3, IL1β, IL18 in the prefrontal cortex. To assess the microglial activities of the prefrontal cortex, immunohistochemically stained CD68, and leukocyte common antigen (LCA) preparations were scanned with Manual WSI software, Basler camera, and scored. RESULT AND DISCUSSION Exposure to CUMS was associated with depression and anxiety-like behaviors, and administration of VOR led to improvement in these behaviors. NLRP3, IL-1β, and IL-18 were shown to be upregulated in the prefrontal cortex of CUMS rats, while their high expression was inhibited by VOR treatment. CD68 and LCA expressions were significantly higher in the CUMS group compared to the other groups. CONCLUSION According to these results, it may be considered that NLRP3 inflammasome-associated neuroinflammatory response and microglial activation may play a role in the etiopathogenesis of ELS.
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Affiliation(s)
- Gulin Ozdamar Unal
- Department of Psychiatry, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Duygu Kumbul
- Department of Biochemistry, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Kuyas Hekimler Ozturk
- Department of Medical Genetics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Gamze Erkılınc
- Department of Pathology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Feyza Donmez
- Department of Psychiatry, Kutahya Health Sciences University Research Information System, Kutahya, Turkey
| | - Eltaf Dogan Kıran
- Department of Biochemistry, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
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Li W, He H, Du M, Gao M, Sun Q, Wang Y, Lu H, Ou S, Xia C, Xu C, Zhao Q, Sun H. Quercetin as a promising intervention for rat osteoarthritis by decreasing M1-polarized macrophages via blocking the TRPV1-mediated P2X7/ NLRP3 signaling pathway. Phytother Res 2024; 38:1990-2006. [PMID: 38372204 DOI: 10.1002/ptr.8158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 02/20/2024]
Abstract
Osteoarthritis (OA) is characterized by an imbalance between M1 and M2 polarized synovial macrophages. Quercetin has shown protective effects against OA by altering M1/M2-polarized macrophages, but the underlying mechanisms remain unclear. In this study, rat chondrocytes were treated with 10 ng/mL of IL-1β. To create M1-polarized macrophages in vitro, rat bone marrow-derived macrophages (rBMDMs) were treated with 100 ng/mL LPS. To mimic OA conditions observed in vivo, a co-culture system of chondrocytes and macrophages was established. ATP release assays, immunofluorescence assays, Fluo-4 AM staining, Transwell assays, ELISA assays, and flow cytometry were performed. Male adult Sprague-Dawley (SD) rats were used to create an OA model. Histological analyses, including H&E, and safranin O-fast green staining were performed. Our data showed a quercetin-mediated suppression of calcium ion influx and ATP release, with concurrent downregulation of TRPV1 and P2X7 in the chondrocytes treated with IL-1β. Activation of TRPV1 abolished the quercetin-mediated effects on calcium ion influx and ATP release in chondrocytes treated with IL-1β. In the co-culture system, overexpression of P2X7 in macrophages attenuated the quercetin-mediated effects on M1 polarization, migration, and inflammation. Either P2X7 or NLRP3 knockdown attenuated IL-1β-induced M1/M2 polarization, migration, and inflammation. Moreover, overexpression of TRPV1 reduced the quercetin-mediated suppressive effects on OA by promoting M1/M2-polarized macrophages in vivo. Collectively, our data showed that quercetin-induced suppression of TRPV1 leads to a delay in OA progression by shifting the macrophage polarization from M1 to M2 subtypes via modulation of the P2X7/NLRP3 pathway.
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Affiliation(s)
- Wenjun Li
- Department of Orthopedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China
| | - Hebei He
- Department of Orthopedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China
| | - Min Du
- Department of Orthopedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China
| | - Mu Gao
- Department of Orthopedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China
| | - Qijie Sun
- Department of Orthopedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China
| | - Yeyang Wang
- Department of Orthopedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China
| | - Hanyu Lu
- Department of Orthopedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China
| | - Shuanji Ou
- Department of Orthopedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China
| | - Changliang Xia
- Department of Orthopedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China
| | - Changpeng Xu
- Department of Orthopedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China
| | - Qi Zhao
- MoE Frontiers Science Center for Precision Oncology, Faculty of Health Sciences, University of Macau, Macau SAR, China
| | - Hongtao Sun
- Department of Orthopedics, The Affiliated Guangdong Second Provincial General Hospital of Jinan University, Guangzhou, China
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Pan Y, Wu Y, Liu Y, Wang P, Huang H, Jin J, Fang Y, Huang S, Fan Z, Yu H. Long non-coding RNA ENSMUST00000197208 promotes a shift in the Th17/Treg ratio via the P2X7R- NLRP3 inflammasome axis in collagen-induced arthritis. Immunol Res 2024; 72:347-360. [PMID: 38066380 DOI: 10.1007/s12026-023-09439-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 11/15/2023] [Indexed: 04/20/2024]
Abstract
Recently, long non‑coding RNAs (lncRNAs) have been implicated in several human diseases, including arthritis. However, the role of lncRNAs in regulating the Th17/Treg ratio during the progression of collagen-induced arthritis (CIA) is poorly understood. Therefore, the aim of this study was to determine the role of the lncRNA ENSMUST00000197208 and the P2X7R-NLRP3 inflammasome axis in changes in the Th17/Treg ratio in CIA. To achieve this, the distribution of T cell subgroups in the spleen cells of a CIA mouse model and control mice was examined. Additionally, we examined the expression profile of ENSMUST00000197208 in a CIA mouse model and healthy mice. The results showed that ENSMUST00000197208 expression was significantly upregulated in the CIA models compared with the control group. Additionally, the P2X7R-NLRP3 inflammasome axis participated in the pathogenesis of CIA and knockdown of ENSMUST00000197208 inhibited CD4+ T cell differentiation into Th17 cells. Compared with the control group, joint inflammation was less visible in NLRP3 knockout mice. Additionally, the P2X7R-NLRP3 inflammasome axis, which is downstream of ENSMUST00000197208, can be positively targeted and regulated by ENSMUST00000197208 through miR-107. Overall, the findings of this study showed that the "lncRNA ENSMUST00000197208-miR 107-P2X7R/NLRP3" axis plays an important role in CIA and knocking down ENSMUST00000197208 can efficiently inhibit Th17 differentiation by suppressing the P2X7R-NLRP3 inflammasome axis. Therefore, targeting this axis may represent a novel strategy for arthritis treatment.
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Affiliation(s)
- Yuting Pan
- Department of Rheumatology and Immunology, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Yan Wu
- Department of Child Health Care, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Yingying Liu
- Department of Rheumatology and Immunology, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Panpan Wang
- Department of Rheumatology and Immunology, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Hui Huang
- Department of Rheumatology and Immunology, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Jing Jin
- Department of Rheumatology and Immunology, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Yuying Fang
- Department of Rheumatology and Immunology, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Shuoyin Huang
- Department of Rheumatology and Immunology, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Zhidan Fan
- Department of Rheumatology and Immunology, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China.
| | - Haiguo Yu
- Department of Rheumatology and Immunology, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China.
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