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He X, Bai Q, Zhang X, Zhang L. MgCl 2 Attenuates ox-LDL-Induced Vascular Smooth Muscle-Derived Foam Cells Pyroptosis by Downregulating the TLR4/NF-κB Signaling Pathway. Biol Trace Elem Res 2023; 201:5242-5256. [PMID: 36719541 DOI: 10.1007/s12011-023-03585-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 01/24/2023] [Indexed: 02/01/2023]
Abstract
Pyroptosis is a type of programmed cell death that is generally upregulated during atherosclerosis (AS). Magnesium, an important cation in the body, has exhibited an antiatherosclerotic effect. We collected AS model datasets from the Gene Expression Omnibus (GEO) and explored the correlation between pyroptosis and AS through a series of bioinformatics methods. We next investigated the impact of oxidized low-density lipoprotein (ox-LDL) on primary cultured vascular smooth muscle cells (VSMCs) foaminess and pyroptosis. Finally, foam cells were preconditioned with different concentrations of MgCl2 to explore its influence on ox-LDL-induced VSMCs pyroptosis. NLRP3-mediated pyroptosis plays a core role in regulating AS progression as shown by bioinformatic analysis. Ox-LDL (50/75/100 mg/L) increased CE/TE ratio (> 50%) in VSMCs and prompted VSMC-derived foam cell formation, and (75/100 mg/L) ox-LDL-induced pyroptosis. Compared to 1 mmol/L MgCl2, 10 mmol/L MgCl2 significantly downregulated the expression of pyroptosis related molecules in VSMCs induced by 75 mg/L ox-LDL, including NLRP3, ASC, caspase-1, and GSDMD. The secretion of IL-1β, IL-18, and LDH was also inhibited by MgCl2. According to CCK-8 and Hoechst 33,342/PI staining, the damage to VSMCs viability induced by ox-LDL was ameliorated by MgCl2. In addition, MgCl2 attenuated the upregulation of TLR4, IKKβ, and p65 and the downregulation of IκBα in VSMCs induced by ox-LDL. The present study demonstrated that pyroptosis-related genes were the core genes in AS. We also revealed the effect and underlying mechanism of MgCl2 on ox-LDL-induced VSMCs pyroptosis, suggesting that MgCl2 has promising clinical applications for AS pyroptosis prevention and treatment.
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Affiliation(s)
- Xiao He
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, 23 You Zheng Street, Harbin, 150001, Heilongjiang Province, China
| | - Qingquan Bai
- Department of Hepatology & Gastroenterology, Charité University Medical Center, Augustenburger Pl. 1, 13353, Berlin, Germany
| | - Xiaosi Zhang
- Metro-Medic Clinic, 1538 Sherbrooke Ouest, Suite 100, Montreal, QC, H3G 1L5, Canada.
| | - Liming Zhang
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, 23 You Zheng Street, Harbin, 150001, Heilongjiang Province, China.
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Ji X, Williams KP, Zheng W. Applying a Gene Reversal Rate Computational Methodology to Identify Drugs for a Rare Cancer: Inflammatory Breast Cancer. Cancer Inform 2023; 22:11769351231202588. [PMID: 37846218 PMCID: PMC10576937 DOI: 10.1177/11769351231202588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 09/01/2023] [Indexed: 10/18/2023] Open
Abstract
The aim of this study was to utilize a computational methodology based on Gene Reversal Rate (GRR) scoring to repurpose existing drugs for a rare and understudied cancer: inflammatory breast cancer (IBC). This method uses IBC-related gene expression signatures (GES) and drug-induced gene expression profiles from the LINCS database to calculate a GRR score for each candidate drug, and is based on the idea that a compound that can counteract gene expression changes of a disease may have potential therapeutic applications for that disease. Genes related to IBC with associated differential expression data (265 up-regulated and 122 down-regulated) were collated from PubMed-indexed publications. Drug-induced gene expression profiles were downloaded from the LINCS database and candidate drugs to treat IBC were predicted using their GRR scores. Thirty-two (32) drug perturbations that could potentially reverse the pre-compiled list of 297 IBC genes were obtained using the LINCS Canvas Browser (LCB) analysis. Binary combinations of the 32 perturbations were assessed computationally to identify combined perturbations with the highest GRR scores, and resulted in 131 combinations with GRR greater than 80%, that reverse up to 264 of the 297 genes in the IBC-GES. The top 35 combinations involve 20 unique individual drug perturbations, and 19 potential drug candidates. A comprehensive literature search confirmed 17 of the 19 known drugs as having either anti-cancer or anti-inflammatory activities. AZD-7545, BMS-754807, and nimesulide target known IBC relevant genes: PDK, Met, and COX, respectively. AG-14361, butalbital, and clobenpropit are known to be functionally relevant in DNA damage, cell cycle, and apoptosis, respectively. These findings support the use of the GRR approach to identify drug candidates and potential combination therapies that could be used to treat rare diseases such as IBC.
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Affiliation(s)
- Xiaojia Ji
- BRITE Institute and Department of Pharmaceutical Sciences, College of Health and Sciences, North Carolina Central University, Durham, NC, USA
| | - Kevin P Williams
- BRITE Institute and Department of Pharmaceutical Sciences, College of Health and Sciences, North Carolina Central University, Durham, NC, USA
| | - Weifan Zheng
- BRITE Institute and Department of Pharmaceutical Sciences, College of Health and Sciences, North Carolina Central University, Durham, NC, USA
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Park JH, Hwang JW, Lee HJ, Jang GM, Jeong YJ, Cho J, Seo J, Hoe HS. Lomerizine inhibits LPS-mediated neuroinflammation and tau hyperphosphorylation by modulating NLRP3, DYRK1A, and GSK3α/β. Front Immunol 2023; 14:1150940. [PMID: 37435081 PMCID: PMC10331167 DOI: 10.3389/fimmu.2023.1150940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 06/05/2023] [Indexed: 07/13/2023] Open
Abstract
Introduction Lomerizine is a calcium channel blocker that crosses the blood-brain barrier and is used clinically in the treatment of migraines. However, whether lomerizine is beneficial in modulating neuroinflammatory responses has not been tested yet. Methods To assess the potential of lomerizine for repurposing as a treatment for neuroinflammation, we investigated the effects of lomerizine on LPS-induced proinflammatory responses in BV2 microglial cells, Alzheimer's disease (AD) excitatory neurons differentiated from induced pluripotent stem cells (iPSCs), and in LPS-treated wild type mice. Results In BV2 microglial cells, lomerizine pretreatment significantly reduced LPS-evoked proinflammatory cytokine and NLRP3 mRNA levels. Similarly, lomerizine pretreatment significantly suppressed the increases in Iba-1, GFAP, proinflammatory cytokine and NLRP3 expression induced by LPS in wild-type mice. In addition, lomerizine posttreatment significantly decreased LPS-stimulated proinflammatory cytokine and SOD2 mRNA levels in BV2 microglial cells and/or wild-type mice. In LPS-treated wild-type mice and AD excitatory neurons differentiated from iPSCs, lomerizine pretreatment ameliorated tau hyperphosphorylation. Finally, lomerizine abolished the LPS-mediated activation of GSK3α/β and upregulation of DYRK1A, which is responsible for tau hyperphosphorylation, in wild-type mice. Discussion These data suggest that lomerizine attenuates LPS-mediated neuroinflammatory responses and tau hyperphosphorylation and is a potential drug for neuroinflammation- or tauopathy-associated diseases.
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Affiliation(s)
- Jin-Hee Park
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
| | - Jeong-Woo Hwang
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea
| | - Hyun-ju Lee
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea
| | - Geum Mi Jang
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
| | - Yoo Joo Jeong
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
| | - Joonho Cho
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
| | - Jinsoo Seo
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
| | - Hyang-Sook Hoe
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), Daegu, Republic of Korea
- Department of Brain Sciences, Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
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Wang Z, Huang S, Xue Z, Gao K, Sun M, Wang A, Lin P, Jin Y. UFM1 inhibits the activation of the pyroptosis in LPS-induced goat endometritis. Theriogenology 2023; 196:50-58. [PMID: 36395577 DOI: 10.1016/j.theriogenology.2022.09.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 12/13/2022]
Abstract
Infertility, abortion, and stillbirth caused by endometritis are the main factors affecting fertility in ruminants. Lipopolysaccharide (LPS)-mediated inflammation is the main cause of endometritis. Toll-like receptor 4 (TLR4) pathway and pyroptosis play an important role in the inflammation, but the underlying mechanism is still unclear. Previous studies have reported that UFMylation, a ubiquitin-like post-translational modifier, plays an important regulatory role in inflammation via the TLR4 pathway; however, its relationship with pyroptosis is still unclear. Our result showed that LPS induced inflammation by activating the TLR4 pathway and pyroptosis in goat endometrial epithelial cells (gEECs). We also found that TAK-242,a specific inhibitor of the TLR4 pathway, inhibited the pyroptosis pathway. In addition, with an increased LPS treatment time, ubiquitin-folding modifier factor 1 (UFM1) conjugated proteins were highly expressed in gEECs. Moreover, overexpression of UFM1 inhibited LPS-induced activation of the TLR4 pathway and pyroptosis, whereas si-UFM1 produced contrasting results. After inhibiting the TLR4 pathway, si-UFM1 could not upregulate the expression of nod-like receptor family protein 3 (NLRP3), cleavage caspase-1, or cleavage gasdermin D (GSDMD). In conclusion, these results suggest that UFM1 inhibits pyroptosis activation in LPS-induced gEECs through the TLR4 pathway.
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Affiliation(s)
- Zongjie Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Shan Huang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Zhongqiang Xue
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Kangkang Gao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Min Sun
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China
| | - Aihua Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China.
| | - Pengfei Lin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China.
| | - Yaping Jin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, Shaanxi, China.
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Gao Y, Xin D, Liang XD, Tang Y. Effect of a combination of Atractylodes macrocephala extract with strychnine on the TLR4/NF-κB/NLRP3 pathway in MH7A cells. Exp Ther Med 2023; 25:91. [PMID: 36761010 PMCID: PMC9905656 DOI: 10.3892/etm.2023.11791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 12/06/2022] [Indexed: 01/10/2023] Open
Abstract
Rheumatoid arthritis (RA) is now widely recognized as a chronic systemic inflammatory autoimmune disease characterized by swelling, pain and stiffness, which are often disabling. Although the number of drugs available for the treatment of RA has increased in recent years, they are generally expensive, leave patients prone to relapse and can result in severe effects when discontinued. Thus, there is a need for an inexpensive drug with fewer side effects that can be adhered to relieve pain and slow down the progression of the disease. Strychnine, a traditional Chinese medicine, was often used in ancient times to treat swollen and painful joints; however, because of its somewhat toxic nature, it is often combined with Atractylodes macrocephala to reduce its toxicity for safer therapeutic action. The present study performed high-performance liquid chromatography (HPLC)-tandem mass spectrometry (MS/MS) analysis to confirm whether the use of strychnine with Atractylodes macrocephala had the effect of reducing strychnine content. MH7A cells were induced using IL-1β to study the effect of strychnine with Atractylodes macrocephala on the Toll-like receptor 4 (TLR4)/NF-κB/NLR family pyrin domain-containing 3 (NLRP3) pathway in order to verify its role in the treatment of RA. The results indicated that the combined application of HPLC-MS/MS strychnine and Atractylodes macrocephala had a reducing effect on the strychnine content. From the subsequent experimental results, it can be inferred that Strychnine combined with Atractylodes macrocephala extract could promote the apoptosis of synovial cells, and could inhibit the expression levels of TLR4, NF-κB and NLRP3 in the cells as well as reducing the MH7A-positive cells. The expression levels of TLR4, IκB kinase β, NF-κB and NLRP3 were significantly reduced after treatment with each administration group, resulting in a decrease in the phosphorylation levels of TLR4 and NF-κB, indicating that the combination potently inhibited their phosphorylation. The combination of strychnine and atractylenolide II was also revealed to be the main active ingredient in the treatment of RA.
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Affiliation(s)
- Yijing Gao
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Dan Xin
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Xiao-Dong Liang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China,Correspondence to: Professor Xiao-Dong Liang or Professor Yingxue Tang, College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, 4655 University Road, Changqing, Jinan, Shandong 250355, P.R. China
| | - Yingxue Tang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China,Correspondence to: Professor Xiao-Dong Liang or Professor Yingxue Tang, College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, 4655 University Road, Changqing, Jinan, Shandong 250355, P.R. China
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Xia GQ, Fang Q, Cai JN, Li ZX, Zhang FZ, Lv XW. P2X7 Receptor in Alcoholic Steatohepatitis and Alcoholic Liver Fibrosis. J Clin Transl Hepatol 2022; 10:1205-1212. [PMID: 36381094 PMCID: PMC9634783 DOI: 10.14218/jcth.2022.00022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/12/2022] [Accepted: 04/21/2022] [Indexed: 12/04/2022] Open
Abstract
Alcoholic liver disease is one of the most common chronic liver diseases in the world. It is a liver disease caused by prolonged heavy drinking and its main clinical features are nausea, vomiting, enlargement of the liver, and jaundice. Recent studies suggest that Kupffer cell-mediated inflammatory response is a core driver in the development of alcoholic steatohepatitis and alcoholic liver fibrosis. As a danger signal, extracellular ATP activates the assembly of NLPR3 inflammasome by acting on purine P2X7 receptor, the activated NLRP3 inflammasome prompts ASC to cleave pro-cCaspase-1 into active caspase-1in KCs. Active caspase-1 promotes the conversion of pro-IL-1β to IL-1β, which further enhances the inflammatory response. Here, we briefly review the role of the P2X7R-NLRP3 inflammasome axis in the pathogenesis of alcoholic liver disease and the evolution of alcoholic steatohepatitis and alcoholic liver fibrosis. Regulation of the inflammasome axis of P2X7R-NLRP3 may be a new approach for the treatment of alcoholic liver disease.
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Affiliation(s)
- Guo-Qing Xia
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
- The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China
- Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
| | - Qian Fang
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
- The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China
- Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
| | - Jun-Nan Cai
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
- The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China
- Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
| | - Zi-Xuan Li
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
- The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China
- Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
| | - Feng-Zhi Zhang
- Wannan Medical College, Yijishan Hospital, Affiliated Hospital 1, Wuhu, Anhui, China
| | - Xiong-Wen Lv
- Institute for Liver Diseases of Anhui Medical University, Hefei, Anhui, China
- The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China
- Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China
- Correspondence to: Xiong-Wen Lv, School of Pharmacy, Anhui Medical University, 81 Mei Shan Road, Hefei, Anhui 230032, China. ORCID: https://orcid.org/0000-0003-2354-0168. Tel: +86-13515519961, Fax: +86-551-63633742, E-mail:
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Kim J, Jeon SG, Jeong HR, Park H, Kim JI, Hoe HS. L-Type Ca 2+ Channel Inhibition Rescues the LPS-Induced Neuroinflammatory Response and Impairments in Spatial Memory and Dendritic Spine Formation. Int J Mol Sci 2022; 23:13606. [PMID: 36362394 PMCID: PMC9655622 DOI: 10.3390/ijms232113606] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/26/2022] [Accepted: 11/03/2022] [Indexed: 08/11/2023] Open
Abstract
Ca2+ signaling is implicated in the transition between microglial surveillance and activation. Several L-type Ca2+ channel blockers (CCBs) have been shown to ameliorate neuroinflammation by modulating microglial activity. In this study, we examined the effects of the L-type CCB felodipine on LPS-mediated proinflammatory responses. We found that felodipine treatment significantly diminished LPS-evoked proinflammatory cytokine levels in BV2 microglial cells in an L-type Ca2+ channel-dependent manner. In addition, felodipine leads to the inhibition of TLR4/AKT/STAT3 signaling in BV2 microglial cells. We further examined the effects of felodipine on LPS-stimulated neuroinflammation in vivo and found that daily administration (3 or 7 days, i.p.) significantly reduced LPS-mediated gliosis and COX-2 and IL-1β levels in C57BL/6 (wild-type) mice. Moreover, felodipine administration significantly reduced chronic neuroinflammation-induced spatial memory impairment, dendritic spine number, and microgliosis in C57BL/6 mice. Taken together, our results suggest that the L-type CCB felodipine could be repurposed for the treatment of neuroinflammation/cognitive function-associated diseases.
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Affiliation(s)
- Jieun Kim
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41062, Korea
| | - Seong Gak Jeon
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41062, Korea
| | - Ha-Ram Jeong
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41062, Korea
| | - HyunHee Park
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41062, Korea
| | - Jae-Ick Kim
- Department of Biological Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
| | - Hyang-Sook Hoe
- Department of Neural Development and Disease, Korea Brain Research Institute (KBRI), 61, Cheomdan-ro, Dong-gu, Daegu 41062, Korea
- Department of Brain and Cognitive Science, Daegu Gyeongbuk Institute of Science & Technology (DGIST), 333, Techno Jungang-Daero, Hyeonpung-eup, Dalseong-gun, Daegu 42988, Korea
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8
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Yin H, Fang L, Wang L, Xia Y, Tian J, Ma L, Zhang J, Li N, Li W, Yao S, Zhang L. Acute Silica Exposure Triggers Pulmonary Inflammation Through Macrophage Pyroptosis: An Experimental Simulation. Front Immunol 2022; 13:874459. [PMID: 35464414 PMCID: PMC9021383 DOI: 10.3389/fimmu.2022.874459] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 03/14/2022] [Indexed: 12/14/2022] Open
Abstract
Silica is an essential substrate of various materials, and inhaling silica induces pulmonary diseases potentially associated with macrophage pyroptosis. Utilizing silica of micro- and nano- sizes, we explored the role of macrophage pyroptosis in silica-induced pulmonary inflammation. Under the transmission electron microscopy, we found that the internalization of silica nanoparticle induced membrane rupture and increased the number of intracellular vacuoles, and both sizes of silica could suppress cell viability and proliferation. Also, silica-exposed macrophages generated higher levels of ROS, together with the upregulated expression of NLRP3, ASC, Caspase-1, GSDMD, IL-1β, and IL-6. However, the expression of these proteins was suppressed after removing ROS or NLRP3. In addition, we found increased expression of TLR4 and NF-κB responsible for silica recognition and pyroptosis priming after silica exposure. For in vivo studies, we established animal model by intratracheally instilling 5 mg of silica into mice with/without NLRP3 inhibition. Four weeks later, we found diffused infiltration of inflammatory cells and enhanced collagen hyperplasia partially reversed by additional treatment with MCC950, so as the expression of pyroptotic molecules and proinflammatory cytokines. In particular, the dual immunofluorescent staining showed co-expression of macrophage-specific biomarker F4/80 and NLRP3 within the cells, and silica of nano-size showed more potent toxicity and pathogenicity than that of the micro-sized particles both in vitro and in vivo. To sum up, macrophage pyroptosis is an upstream event of silica-induced pulmonary inflammation promoted by ROS through the TLR4/NLRP3/NF-κB signaling axis.
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Affiliation(s)
- Haoyu Yin
- Clinical Medical Research Center for Women and Children Diseases, Maternal and Child Health Care Hospital of Shandong Province, Shandong University, Jinan, China.,School of Public Health, Weifang Medical University, Weifang, China
| | - Lei Fang
- School of Public Health, Weifang Medical University, Weifang, China
| | - Lifeng Wang
- Clinical Medical Research Center for Women and Children Diseases, Maternal and Child Health Care Hospital of Shandong Province, Shandong University, Jinan, China
| | - Yu Xia
- Department of Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Jiaqi Tian
- School of Public Health, Weifang Medical University, Weifang, China
| | - Lan Ma
- School of Public Health, Weifang Medical University, Weifang, China
| | - Jing Zhang
- School of Public Health, North China University of Science of Technology, Tangshan, China
| | - Ning Li
- School of Public Health, North China University of Science of Technology, Tangshan, China
| | - Weixiu Li
- Clinical Medical Research Center for Women and Children Diseases, Maternal and Child Health Care Hospital of Shandong Province, Shandong University, Jinan, China
| | - Sanqiao Yao
- School of Public Health, Xinxiang Medical University, Xinxiang, China
| | - Lin Zhang
- Clinical Medical Research Center for Women and Children Diseases, Maternal and Child Health Care Hospital of Shandong Province, Shandong University, Jinan, China
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Peng W, Zhang B, Sun Z, Zhang M, Guo L. Targeting the Nod-like receptor protein 3 Inflammasome with inhibitor MCC950 rescues lipopolysaccharide-induced inhibition of osteogenesis in Human periodontal ligament cells. Arch Oral Biol 2021; 131:105269. [PMID: 34601319 DOI: 10.1016/j.archoralbio.2021.105269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 12/27/2022]
Abstract
OBJECTIVE We aim to investigate whether lipopolysaccharide-stimulated activition of Nod-like receptor protein 3 (NLRP3) Inflammasome inhibits osteogenesis in Human periodontal ligament cells (HPDLCs). Futhermore, to study whether MCC950 (a inhibitor of NLRP3 Inflammasome) rescues lipopolysaccharide-induced inhibition of osteogenesis in HPDLCs as well as the underlying mechanisms. METHODS HPDLCs were isolated from periodontal ligament of healthy orthodontic teeth from teenagers, and cells surface marker protein were detected by flow cytometry. Cells viability were determined by Cell Counting kit 8 assay. Enzyme-linked immunosorbent assay was used to analyze the secretion of proinflammatory factors. Western blot and real-time quantitative polymerase chain reaction (RT-qPCR) were measured assessing the expression of NLRP3 and Caspase-1. RT-qPCR, Alizarin red staining and Alkaline phosphatase staining were tested to determine the osteogenic differentiation capacity of HPDLCs. RESULTS It was found that lipopolysaccharide in the range of concentrations from 10 to 100 μg/ml significantly inhibited HPDLCs viability at 24 h and significantly improved proinflammatory cytokine expressions at 8 h and 24 h. MCC950 reversed lipopolysaccharide-stimulated proinflammatory cytokine expressions including interleukin-1β and interleukin-18, but not tumor necrosis factor-α. In addition, MCC950 rescued the lipopolysaccharide-inhibited osteogenic gene (Alkaline phosphatase, Runt-related transcription factor 2, and Osteocalcin). Moreover, MCC950 downregulated lipopolysaccharide-induced relative protein of NLRP3 Inflammasome signaling pathway, such as NLRP3 and Caspase-1. CONCLUSION MCC950 rescues lipopolysaccharide-induced inhibition of osteogenesis in HPDLCs via blocking NLRP3 Inflammasome signaling pathway, and it may be used as a promising therapeutic agent for periodontitis or periondontal regenerative related disease.
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Affiliation(s)
- Wei Peng
- Department of prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan, China.
| | - Bo Zhang
- Department of prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan, China.
| | - Zhengfan Sun
- Department of prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan, China.
| | - Meifeng Zhang
- Department of prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan, China.
| | - Ling Guo
- Department of prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan, China.
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10
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Zhang Q, Feng A, Zeng M, Zhang B, Shi J, Lv Y, Cao B, Zhao C, Wang M, Ding Y, Zheng X. Chrysosplenol D protects mice against LPS-induced acute lung injury by inhibiting oxidative stress, inflammation, and apoptosis via TLR4-MAPKs/NF-κB signaling pathways. Innate Immun 2021; 27:514-524. [PMID: 34806444 PMCID: PMC8762090 DOI: 10.1177/17534259211051069] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/27/2021] [Accepted: 09/19/2021] [Indexed: 12/15/2022] Open
Abstract
This study investigated the effect and mechanism of chrysosplenol D (CD) on LPS-induced acute lung injury in mice. Histological changes in the lungs were measured by hematoxylin-eosin staining. The levels of IL-6, IL-1β, and TNF-α in the bronchoalveolar lavage fluid were detected by ELISA. The levels of oxidative stress were detected by the cuvette assay. Immune cells in peripheral blood, the levels of reactive oxygen species, and apoptosis of primary lung cells were detected by flow cytometry. The mRNA levels of TLR4, MyD88, IL-1β, and NLRP3 were measured by quantitative real-time polymerase chain reaction. The levels of proteins in apoptosis and the TLR4-MAPKs/NF-κB signaling pathways were detected by Western blot. Hematoxylin-eosin staining showed that CD could improve lung injury; decrease the levels of inflammatory factors, oxidative stress, reactive oxygen species, and cell apoptosis; and regulate the immune system. Moreover, CD could down-regulate the mRNA levels of TLR4, MyD88, NLRP3, and IL-1β in lung, and the protein levels of Keap-1, Cleaved-Caspase-3/Caspase-3, Cleaved-Caspase-9/Caspase-9, TLR4, MyD88, p-ERK/ERK, p-JNK/JNK, p-p38/p38, p-p65/p65, NLRP3, and IL-1β, and up-regulated the levels of Bcl-2/Bax, p-Nrf2/Nrf2, and HO-1. The results suggested that CD could protect mice against LPS-induced acute lung injury by inhibiting oxidative stress, inflammation, and apoptosis via the TLR4-MAPKs/NF-κB signaling pathways.
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Affiliation(s)
- Qinqin Zhang
- Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Aozi Feng
- Department of Clinical Research, the First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Mengnan Zeng
- Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Beibei Zhang
- Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Jingya Shi
- Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Yaxin Lv
- Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Bing Cao
- Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
| | - Chenxin Zhao
- Henan University of Chinese Medicine, Zhengzhou, China
| | - Mengya Wang
- Henan University of Chinese Medicine, Zhengzhou, China
| | - Yifan Ding
- Henan University of Chinese Medicine, Zhengzhou, China
| | - Xiaoke Zheng
- Henan University of Chinese Medicine, Zhengzhou, China
- The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Zhengzhou, China
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11
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Grylls A, Seidler K, Neil J. Link between microbiota and hypertension: Focus on LPS/TLR4 pathway in endothelial dysfunction and vascular inflammation, and therapeutic implication of probiotics. Biomed Pharmacother 2021; 137:111334. [PMID: 33556874 DOI: 10.1016/j.biopha.2021.111334] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 02/07/2023] Open
Abstract
High blood pressure (BP) presents a significant public health challenge. Recent findings suggest that altered microbiota can exert a hypertensive effect on the host. One of the possible mechanisms involved is the chronic translocation of its components, mainly lipopolysaccharides (LPS) into systemic circulation leading to metabolic endotoxemia. In animal models, LPS has been commonly used to induce endothelial dysfunction and vascular inflammation. In human studies, plasma LPS concentration has been positively correlated with hypertension, however, the mechanistic link has not been fully elucidated. It is hypothesised here that the LPS-induced direct alterations to the vascular endothelium and resulting hypertension are possible targets for probiotic intervention. The methodology of this review involved a systematic search of the literature with critical appraisal of papers. Three tranches of search were performed: 1) existing review papers; 2) primary mechanistic animal, in vitro and human studies; and 3) primary intervention studies. A total of 70 peer-reviewed papers were included across the three tranches and critically appraised using SIGN50 for human studies and the ARRIVE guidelines for animal studies. The extracted information was coded into key themes and summarized in a narrative analysis. Results highlight the role of LPS in the activation of endothelial toll-like receptor 4 (TLR4) initiating a cascade of interrelated signalling pathways including: 1) Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase/ Reactive oxygen species (ROS)/ Endothelial nitric oxide synthase (eNOS) pathway leading to endothelial dysfunction; and 2) Mitogen-Activated Protein Kinase (MAPK) and Nuclear factor kappa B (NF-κB) pathways leading to vascular inflammation. Findings from animal intervention studies suggest an improvement in vasorelaxation, vascular inflammation and hypertension following probiotic supplementation, which was mediated by downregulation of LPS-induced pathways. Randomised controlled trials (RCTs) and systematic reviews provided some evidence for the anti-inflammatory effect of probiotics with statistically significant antihypertensive effect in clinical samples and may offer a viable intervention for the management of hypertension.
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Affiliation(s)
- Alina Grylls
- Centre for Nutrition Education and Lifestyle Management, Chapel Gardens, 14 Rectory Road, Wokingham RG40 1DH, England, United Kingdom.
| | - Karin Seidler
- Centre for Nutrition Education and Lifestyle Management, Chapel Gardens, 14 Rectory Road, Wokingham RG40 1DH, England, United Kingdom
| | - James Neil
- Centre for Nutrition Education and Lifestyle Management, Chapel Gardens, 14 Rectory Road, Wokingham RG40 1DH, England, United Kingdom
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12
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van den Berg DF, Te Velde AA. Severe COVID-19: NLRP3 Inflammasome Dysregulated. Front Immunol 2020; 11:1580. [PMID: 32670297 PMCID: PMC7332883 DOI: 10.3389/fimmu.2020.01580] [Citation(s) in RCA: 153] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 06/15/2020] [Indexed: 01/08/2023] Open
Abstract
SARS-CoV-2 might directly activate NLRP3 inflammasome resulting in an endogenous adjuvant activity necessary to mount a proper adaptive immune response against the virus. Heterogeneous response of COVID-19 patients could be attributed to differences in not being able to properly downregulate NLRP3 inflammasome activation. This relates to the fitness of the immune system of the individual challenged by the virus. Patients with a reduced immune fitness can demonstrate a dysregulated NLRP3 inflammasome activity resulting in severe COVID-19 with tissue damage and a cytokine storm. We sketch the outlines of five possible scenarios for COVID-19 in medical practice and provide potential treatment options targeting dysregulated endogenous adjuvant activity in severe COVID-19 patients.
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Affiliation(s)
- Daan F van den Berg
- Amsterdam UMC, Academic Medical Center, Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology, Endocrinology and Metabolism, Amsterdam, Netherlands
| | - Anje A Te Velde
- Amsterdam UMC, Academic Medical Center, Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology, Endocrinology and Metabolism, Amsterdam, Netherlands
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