151
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Lee JH, Yin Q, Park HH. Editorial: Structural immunology of molecular innate immunity. Front Immunol 2023; 14:1284121. [PMID: 37744327 PMCID: PMC10512055 DOI: 10.3389/fimmu.2023.1284121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 08/30/2023] [Indexed: 09/26/2023] Open
Affiliation(s)
- Jun Hyuck Lee
- Unit of Research for Practical Application, Korea Polar Research Institute, Incheon, Republic of Korea
| | - Qian Yin
- Department of Biological Science, Florida State University, Tallahassee, FL, United States
| | - Hyun Ho Park
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
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152
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Ni B, Liu Y, Dai M, Zhao J, Liang Y, Yang X, Han B, Jiang M. The role of cannabidiol in aging. Biomed Pharmacother 2023; 165:115074. [PMID: 37418976 DOI: 10.1016/j.biopha.2023.115074] [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: 03/31/2023] [Revised: 06/15/2023] [Accepted: 06/23/2023] [Indexed: 07/09/2023] Open
Abstract
Aging is usually considered a key risk factor associated with multiple diseases, such as neurodegenerative diseases, cardiovascular diseases and cancer. Furthermore, the burden of age-related diseases has become a global challenge. It is of great significance to search for drugs to extend lifespan and healthspan. Cannabidiol (CBD), a natural nontoxic phytocannabinoid, has been regarded as a potential candidate drug for antiaging. An increasing number of studies have suggested that CBD could benefit healthy longevity. Herein, we summarized the effect of CBD on aging and analyzed the possible mechanism. All these conclusions may provide a perspective for further study of CBD on aging.
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Affiliation(s)
- Beibei Ni
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Yanying Liu
- Department of Basic Medical, Qingdao Huanghai University, Qingdao 266427, China
| | - Meng Dai
- Department of Emergency Internal Medicine, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Jun Zhao
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Yu Liang
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Xue Yang
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Bing Han
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Man Jiang
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao 266003, China.
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153
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Cheng N, Wang Y, Gu Z. Understanding the role of NLRP3-mediated pyroptosis in allergic rhinitis: A review. Biomed Pharmacother 2023; 165:115203. [PMID: 37481928 DOI: 10.1016/j.biopha.2023.115203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/12/2023] [Accepted: 07/18/2023] [Indexed: 07/25/2023] Open
Abstract
Allergic rhinitis (AR) is a chronic, inflammatory disease of the nasal mucosa, caused by the immunoglobulin E-mediated immune response. The annual incidence rate of AR is on the rise, exerting a significant impact on individuals' physical and mental wellbeing. The treatment effect in some patients is still not ideal, as the pathogenesis of AR is complex and diverse. Recent studies have shown that NLRP3 inflammasome-mediated pyroptosis is widely involved in the occurrence and development of AR through various pathways. This article reviews the mechanism of pyroptosis and its research progress in the field of AR, and puts forward possible therapeutic targets to offer innovative approaches for its management.
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Affiliation(s)
- Nuo Cheng
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, PR China
| | - Yunxiu Wang
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang 110004, PR China.
| | - Zhaowei Gu
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, PR China.
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154
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Zheng X, Qiu J, Gao N, Jiang T, Li Z, Zhang W, Gong Y, Hong Z, Hong H. Paroxetine Attenuates Chondrocyte Pyroptosis and Inhibits Osteoclast Formation by Inhibiting NF-κB Pathway Activation to Delay Osteoarthritis Progression. Drug Des Devel Ther 2023; 17:2383-2399. [PMID: 37605762 PMCID: PMC10440089 DOI: 10.2147/dddt.s417598] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 08/06/2023] [Indexed: 08/23/2023] Open
Abstract
Background Osteoarthritis (OA), a common chronic joint disease, is characterized by cartilage degeneration and subchondral bone reconstruction. NF-κB signaling pathway-activated inflammation and NLRP3-induced pyroptosis play essential roles in the development of OA. In this study, we examine whether paroxetine can inhibit pyroptosis and reduce osteoclast formation, thereby delaying the destruction of knee joints. Methods We employed high-density cultures, along with quantitative polymerase chain reactions and Western blotting techniques, to investigate the effects of paroxetine on extracellular matrix synthesis and degradation. The expression levels of NF-κB and pyroptosis-related signaling pathway proteins were examined by Western blotting and immunofluorescence. Furthermore, the impact of paroxetine on RANKL-induced osteoclast formation was evaluated through TRAP staining and F-actin ring fluorescence detection. To investigate the role of paroxetine in vivo, we constructed a mouse model with destabilization of the medial meniscus (DMM) surgery. Safranin O-Fast Green staining, Hematoxylin-Eosin staining, and immunohistochemistry were conducted to observe the extent of knee joint cartilage deformation. In addition, TRAP staining was used to observe the formation of osteoclasts in the subchondral bone. Results In the in vitro experiments with ATDC5, paroxetine treatment attenuated IL-1β-induced activation of the pyroptosis-related pathway and suppressed extracellular matrix catabolism by inhibiting the NF-kB signaling pathway. In addition, paroxetine treatment decreased the expression of RANKL-induced osteoclast marker genes and reduced osteoclast formation. In animal experiments conducted in vivo, mice treated with paroxetine exhibited thicker knee cartilage with a smoother surface compared to the DMM group. Additionally, the formation of osteoclasts in the subchondral bone was reduced in the paroxetine-treated mice. Further analysis revealed that paroxetine treatment played a role in preserving the balance of the extracellular matrix and delaying knee joint degeneration. Conclusion Paroxetine can inhibit pyroptosis and reduce osteoclast formation via inhibiting the NF-κB signaling pathway, suggesting that it may have therapeutic effects in patients with OA.
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Affiliation(s)
- Xiaohang Zheng
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Jianxin Qiu
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Ning Gao
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
| | - Ting Jiang
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Ze Li
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Weikang Zhang
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Yuhang Gong
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Zhenghua Hong
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Huaxing Hong
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
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155
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Wu J, Xiong X, Hu X. Electroacupuncture Alleviates Lung Injury in CpG1826-Challenged Mice via Modulating CD39-NLRP3 Pathway. J Inflamm Res 2023; 16:3245-3258. [PMID: 37555014 PMCID: PMC10406113 DOI: 10.2147/jir.s413892] [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: 03/23/2023] [Accepted: 07/25/2023] [Indexed: 08/10/2023] Open
Abstract
PURPOSE Cytokine storm secondary lung injury (CSSLI) is the leading death cause in COVID-19 virus infection, and CD39-dominated purinergic brake drives NLRP3 inflammasome activation and pyroptosis, which plays a crucial role in the pathogenesis of CSSLI. Though electroacupuncture (EA) can alleviate lung injury caused by a variety of inducers, its effect on CSSLI and the underlying mechanism needs further investigation. METHODS We established a widely recognized CSSLI mice model with CpG1826 (CpG), a TLR-9 agonist agent. Luminex liquid chip was employed to detect serum levels of 12 cytokines/chemokines to evaluate cytokine storm formation. H+E staining and transmission electron microscope were applied to examine pulmonary pathological injury and alveolar macrophage structure, respectively. IL-1β, IL-18, IL-1α, and HMGB-1 in BAL fluid were determined by ELISA kits. mRNA and protein levels of lung CD39 and NLRP3 were assessed by qRT-PCR and Western blotting. An in vitro model was also established by incubating PMA-differentiated THP-1 cells with serum samples obtained from relevant group of mice. RESULTS Repeated CpG induced CSSLI together with the elevation of 11 cytokines/chemokines including GM-CSF, IL-16, IL-1α, MCP-1, IL-2, IL-10, CCL3, IL-1β, TNF-α, IL-6, and IL-17A, though not IFN-γ, which was reduced by EA pretreatment to a different extent. EA also alleviated lung injury and recovered lung macrophage structure. Moreover, CpG enhanced IL-1β and IL-18 level in BAL fluid, promoted NLRP3, while suppressing CD39 expression in lung, all of which were reversed by EA pretreatment. Of note, EA failed to further decrease BAL fluid IL-1β, IL-18, IL-1α, and HMGB-1 levels when A438079, a selective inhibitor of P2X7, was administered. However, both CD39 and NLRP3 are dispensable for EA decreasing multi-cytokine secretion in serum-incubated and CpG-stimulated THP-1 cells. Taken together, EA alleviated CSSLI in CpG-challenged mice by regulating the CD39-NLRP3 pathway in a P2X7-dependent way. CONCLUSION EA demonstrated potential to be applied in COVID-19 treatment.
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Affiliation(s)
- Jiasi Wu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, People’s Republic of China
| | - Xin Xiong
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, People’s Republic of China
| | - Xiumin Hu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, People’s Republic of China
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156
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Zeng J, Liao S, Liang Z, Li C, Luo Y, Wang K, Zhang D, Lan L, Hu S, Li W, Lin R, Jie Z, Hu Y, Dai S, Zhang Z. Schisandrin A regulates the Nrf2 signaling pathway and inhibits NLRP3 inflammasome activation to interfere with pyroptosis in a mouse model of COPD. Eur J Med Res 2023; 28:217. [PMID: 37400851 PMCID: PMC10316617 DOI: 10.1186/s40001-023-01190-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 06/23/2023] [Indexed: 07/05/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a serious chronic lung disease. Schisandrin A (SchA) is one of the most important active ingredients in Schisandra chinensis and has been used to treat various lung diseases in several countries. Here, we studied the pharmacological effect of SchA on airway inflammation induced by cigarette smoke (CS) and explored the therapeutic mechanism of SchA in COPD model mice. Our results showed that SchA treatment significantly improved the lung function of CS-induced COPD model mice and reduced the recruitment of leukocytes and hypersecretion of interleukin-6 (IL-6), interleukin-1β (IL-1β) and tumor necrosis factor α (TNF-α) in bronchoalveolar lavage fluid (BALF). H&E staining showed that SchA treatment could effectively reduce emphysema, immune cell infiltration and airway wall destruction. In addition, we found that SchA treatment can stimulate the expression of heme oxygenase-1 (HO-1) through the nuclear factor-erythroid 2-related factor (Nrf2) pathway, significantly reduce oxidative stress, increase catalase (CAT) and superoxide dismutase (SOD) levels, and suppress the level of malondialdehyde (MDA) in COPD model mice. Moreover, SchA treatment suppressed the generation of the NLRP3/ASC/Caspase1 inflammasome complex to inhibit the inflammatory response caused by IL-1β and IL-18 and pyroptosis caused by GSDMD. In conclusion, our study shows that SchA treatment can inhibit the production of ROS and the activation of the NLRP3 inflammasome by upregulating Nrf-2, thereby producing anti-inflammatory effects and reducing lung injury in COPD model mice. More importantly, SchA exhibited similar anti-inflammatory effects to dexamethasone in COPD model mice, and we did not observe substantial side effects of SchA treatment. The high safety of SchA makes it a potential candidate drug for the treatment of COPD.
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Affiliation(s)
- Jiamin Zeng
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Medical University, Guangzhou, China
| | - Sida Liao
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhu Liang
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Medical University, Guangzhou, China
| | - Caiping Li
- Guangzhou Medical University, Guangzhou, China
| | - Yuewen Luo
- Guangzhou Medical University, Guangzhou, China
| | - Kexin Wang
- Guangzhou Medical University, Guangzhou, China
| | - Dapeng Zhang
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Lan Lan
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Suzhen Hu
- Huangdao District Chinese Medicine Hospital, Qingdao, China
| | - Wanyan Li
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ran Lin
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zichen Jie
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuanlong Hu
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Medical University, Guangzhou, China
| | - Shiting Dai
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Medical University, Guangzhou, China
| | - Zhimin Zhang
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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157
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Mellacheruvu M, Lawrence GMEP, Emming S, Schroder K. Reversing the mitochondrial hex that bewitches NLRP3. Sci Immunol 2023; 8:eadh2967. [PMID: 37327323 DOI: 10.1126/sciimmunol.adh2967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Hexokinase dissociation from mitochondria triggers calcium-induced oligomerization of VDAC within the outer mitochondrial membrane, leading to NLRP3 recruitment and inflammasome signaling (see related Research Article by Baik et al.).
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Affiliation(s)
- Manasa Mellacheruvu
- Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia
| | - Grace M E P Lawrence
- Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia
| | - Stefan Emming
- Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia
| | - Kate Schroder
- Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD, Australia
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158
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Guo ML, Roodsari SK, Cheng Y, Dempsey RE, Hu W. Microglia NLRP3 Inflammasome and Neuroimmune Signaling in Substance Use Disorders. Biomolecules 2023; 13:922. [PMID: 37371502 DOI: 10.3390/biom13060922] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/22/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
During the last decade, substance use disorders (SUDs) have been increasingly recognized as neuroinflammation-related brain diseases. Various types of abused drugs (cocaine, methamphetamine, alcohol, opiate-like drugs, marijuana, etc.) can modulate the activation status of microglia and neuroinflammation levels which are involved in the pathogenesis of SUDs. Several neuroimmune signaling pathways, including TLR/NF-кB, reactive oxygen species, mitochondria dysfunction, as well as autophagy defection, etc., have been implicated in promoting SUDs. Recently, inflammasome-mediated signaling has been identified as playing critical roles in the microglia activation induced by abused drugs. Among the family of inflammasomes, NOD-, LRR-, and pyrin-domain-containing protein 3 (NLRP3) serves the primary research target due to its abundant expression in microglia. NLRP3 has the capability of integrating multiple external and internal inputs and coordinately determining the intensity of microglia activation under various pathological conditions. Here, we summarize the effects of abused drugs on NLRP3 inflammasomes, as well as others, if any. The research on this topic is still at an infant stage; however, the readily available findings suggest that NLRP3 inflammasome could be a common downstream effector stimulated by various types of abused drugs and play critical roles in determining abused-drug-mediated biological effects through enhancing glia-neuron communications. NLRP3 inflammasome might serve as a novel target for ameliorating the development of SUDs.
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Affiliation(s)
- Ming-Lei Guo
- Drug Addiction Laboratory, Department of Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA 23507, USA
- Center for Integrative Neuroscience and Inflammatory Diseases, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Soheil Kazemi Roodsari
- Drug Addiction Laboratory, Department of Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Yan Cheng
- Drug Addiction Laboratory, Department of Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Rachael Elizabeth Dempsey
- Drug Addiction Laboratory, Department of Pathology and Anatomy, Eastern Virginia Medical School, Norfolk, VA 23507, USA
| | - Wenhui Hu
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
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159
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Guo J, Shi J, Qin M, Wang Y, Li Z, Shoji T, Ikezoe T, Ge Y, Xu B. Pharmacological Inhibition of Gasdermin D Suppresses Angiotensin II-Induced Experimental Abdominal Aortic Aneurysms. Biomolecules 2023; 13:899. [PMID: 37371479 DOI: 10.3390/biom13060899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Gasdermin D, a molecule downstream of the nucleotide-binding oligomerization domain-like receptor family pyrin domain containing inflammasome, forms the membrane pore for the secretion of interleukin (IL)-1β and IL-18, and also mediates pyroptosis. This study was to explore the influence of treatment with disulfiram, a small molecule inhibitor to gasdermin D, on the formation and progression of experimental abdominal aortic aneurysms (AAA). METHODS AAAs were induced in 10-week-old male apolipoprotein E deficient mice by subcutaneous infusion of angiotensin II (1000 ng/min/kg body weight) for 28 days via osmotic minipumps. Three days prior to angiotensin II infusion, disulfiram (50 mg/kg) or an equal volume of saline as the vehicle control was administered daily via oral gavage. The influence on experimental AAAs was analyzed by serial measurements of aortic diameters via ultrasonography, grading AAA severity and histopathology at sacrifice. Serum IL-1β and IL-18 levels, systolic blood pressure, total cholesterol, and triglyceride were also measured. Additional experiments assayed the influences on the cell viability and IL-1β secretion of in vitro activated macrophages. RESULTS Disulfiram significantly reduced the enlargement, incidence, and severity of angiotensin II-induced experimental AAAs with attenuation of medial elastin breaks, mural macrophage accumulation, and systolic blood pressure. The AAA suppression was also associated with reduced systemic levels of IL-1β but not IL-18. However, disulfiram treatment had no impact on body weight gain and lipid levels in aneurysmal mice. Additionally, disulfiram treatment also markedly reduced the secretion of IL-1β from activated macrophages with a limited effect on cell viability in vitro. CONCLUSIONS Gasdermin D inhibition by disulfiram attenuated angiotensin II-induced experimental AAAs with reduced systemic IL-1β levels and in vitro activated macrophage IL-1β secretion. Our study suggests that pharmacological gasdermin D inhibition may have translational potential for limiting clinical AAA progression.
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Affiliation(s)
- Jia Guo
- Center for Hypertension Care, Shanxi Medical University First Hospital, Taiyuan 030001, China
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Jinyun Shi
- Center for Hypertension Care, Shanxi Medical University First Hospital, Taiyuan 030001, China
| | - Min Qin
- Center for Hypertension Care, Shanxi Medical University First Hospital, Taiyuan 030001, China
| | - Yan Wang
- Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
| | - Zhidong Li
- Department of Pharmacology, Shanxi Medical University, Taiyuan 030001, China
| | - Takahiro Shoji
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Toru Ikezoe
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Yingbin Ge
- Department of Physiology, Nanjing Medical University, Nanjing 211166, China
| | - Baohui Xu
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
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160
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Bourque J, Hawiger D. Activation, Amplification, and Ablation as Dynamic Mechanisms of Dendritic Cell Maturation. BIOLOGY 2023; 12:biology12050716. [PMID: 37237529 DOI: 10.3390/biology12050716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/07/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023]
Abstract
T cell responses to cognate antigens crucially depend on the specific functionality of dendritic cells (DCs) activated in a process referred to as maturation. Maturation was initially described as alterations of the functional status of DCs in direct response to multiple extrinsic innate signals derived from foreign organisms. More recent studies, conducted mainly in mice, revealed an intricate network of intrinsic signals dependent on cytokines and various immunomodulatory pathways facilitating communication between individual DCs and other cells for the orchestration of specific maturation outcomes. These signals selectively amplify the initial activation of DCs mediated by innate factors and dynamically shape DC functionalities by ablating DCs with specific functions. Here, we discuss the effects of the initial activation of DCs that crucially includes the production of cytokine intermediaries to collectively achieve amplification of the maturation process and further precise sculpting of the functional landscapes among DCs. By emphasizing the interconnectedness of the intracellular and intercellular mechanisms, we reveal activation, amplification, and ablation as the mechanistically integrated components of the DC maturation process.
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Affiliation(s)
- Jessica Bourque
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO 63104, USA
| | - Daniel Hawiger
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO 63104, USA
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161
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Bauer S, Hezinger L, Rexhepi F, Ramanathan S, Kufer TA. NOD-like Receptors-Emerging Links to Obesity and Associated Morbidities. Int J Mol Sci 2023; 24:ijms24108595. [PMID: 37239938 DOI: 10.3390/ijms24108595] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/06/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Obesity and its associated metabolic morbidities have been and still are on the rise, posing a major challenge to health care systems worldwide. It has become evident over the last decades that a low-grade inflammatory response, primarily proceeding from the adipose tissue (AT), essentially contributes to adiposity-associated comorbidities, most prominently insulin resistance (IR), atherosclerosis and liver diseases. In mouse models, the release of pro-inflammatory cytokines such as TNF-alpha (TNF-α) and interleukin (IL)-1β and the imprinting of immune cells to a pro-inflammatory phenotype in AT play an important role. However, the underlying genetic and molecular determinants are not yet understood in detail. Recent evidence demonstrates that nucleotide-binding and oligomerization domain (NOD)-like receptor (NLR) family proteins, a group of cytosolic pattern recognition receptors (PRR), contribute to the development and control of obesity and obesity-associated inflammatory responses. In this article, we review the current state of research on the role of NLR proteins in obesity and discuss the possible mechanisms leading to and the outcomes of NLR activation in the obesity-associated morbidities IR, type 2 diabetes mellitus (T2DM), atherosclerosis and non-alcoholic fatty liver disease (NAFLD) and discuss emerging ideas about possibilities for NLR-based therapeutic interventions of metabolic diseases.
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Affiliation(s)
- Sarah Bauer
- Institute of Nutritional Medicine, Department of Immunology, University of Hohenheim, 70593 Stuttgart, Germany
| | - Lucy Hezinger
- Institute of Nutritional Medicine, Department of Immunology, University of Hohenheim, 70593 Stuttgart, Germany
| | - Fjolla Rexhepi
- Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada
| | - Sheela Ramanathan
- Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada
| | - Thomas A Kufer
- Institute of Nutritional Medicine, Department of Immunology, University of Hohenheim, 70593 Stuttgart, Germany
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