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房 尚, 孙 任, 苏 慧, 翟 科, 项 毓, 高 杨, 郭 文. [Chlorogenic acid alleviates acute kidney injury in septic mice by inhibiting NLRP3 inflammasomes and the caspase-1 canonical pyroptosis pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:317-323. [PMID: 38501417 PMCID: PMC10954528 DOI: 10.12122/j.issn.1673-4254.2024.02.14] [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] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Indexed: 03/20/2024]
Abstract
OBJECTIVE To investigate the role of caspase-1-medicated canonical pyroptosis pathway in chlorogenic acid (CGA) treatment of acute kidney injury (AKI) in mice. METHOD Twenty-four C57Bl/6J mice were randomized into sham-operated group, cecal ligation and puncture (CLP) group, CLP+dexamethasone group (CLP+DXM group), and CLP+CGA group (n=6) and subjected to either sham operation (laparotomy only) or CLP. After modeling the mice received intravenous infusion of 10 mg/kg normal saline (in sham and CLP groups), 1 μg/kg dexamethasone or 15 mg/kg of chlorogenic acid for 6 h delivered using an intravenous pump. Eight hours after the infusion, renal morphology and histology, renal cell apoptosis, and the renal function parameters such as urea nitrogen (BUN), creatinine (Scr), and kidney injury molecule 1 (KIM-1) were compared among the 4 groups; the 7-day survival rates of the mice were recorded, and the expressions of NLRP3 inflammasomes and key proteins of the caspase-1 pathway in the renal tissue were detected. RESULTS CGA treatment significantly improved the 7-day survival rate, reduced renal pathologies of the septic mice (P < 0.05), and lowered the levels of BUN, Scr, KIM-1, NLRP3 inflammasome and expressions of key proteins of the caspase-1 pathway. CONCLUSION CGA alleviates AKI in mice with CLP-induced sepsis by inhibiting NLRP3 inflammasomes and the caspase-1 signaling pathway.
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Affiliation(s)
- 尚萍 房
- 皖南医学院麻醉学院,安徽 芜湖 241002School of Anesthesiology, Wannan Medical College, Wuhu 241002, China
- 皖南医学院麻醉学实验实训中心,安徽 芜湖 241002Laboratory and Training Center of Anesthesiology, Wannan Medical College, Wuhu 241002, China
| | - 任珂 孙
- 皖南医学院麻醉学院,安徽 芜湖 241002School of Anesthesiology, Wannan Medical College, Wuhu 241002, China
- 皖南医学院麻醉学实验实训中心,安徽 芜湖 241002Laboratory and Training Center of Anesthesiology, Wannan Medical College, Wuhu 241002, China
| | - 慧 苏
- 皖南医学院麻醉学院,安徽 芜湖 241002School of Anesthesiology, Wannan Medical College, Wuhu 241002, China
- 皖南医学院麻醉学实验实训中心,安徽 芜湖 241002Laboratory and Training Center of Anesthesiology, Wannan Medical College, Wuhu 241002, China
| | - 科程 翟
- 皖南医学院麻醉学院,安徽 芜湖 241002School of Anesthesiology, Wannan Medical College, Wuhu 241002, China
- 皖南医学院麻醉学实验实训中心,安徽 芜湖 241002Laboratory and Training Center of Anesthesiology, Wannan Medical College, Wuhu 241002, China
| | - 毓 项
- 皖南医学院麻醉学院,安徽 芜湖 241002School of Anesthesiology, Wannan Medical College, Wuhu 241002, China
- 皖南医学院麻醉学实验实训中心,安徽 芜湖 241002Laboratory and Training Center of Anesthesiology, Wannan Medical College, Wuhu 241002, China
| | - 杨梦娜 高
- 皖南医学院麻醉学院,安徽 芜湖 241002School of Anesthesiology, Wannan Medical College, Wuhu 241002, China
- 皖南医学院麻醉学实验实训中心,安徽 芜湖 241002Laboratory and Training Center of Anesthesiology, Wannan Medical College, Wuhu 241002, China
| | - 文俊 郭
- 皖南医学院第一附属医院,安徽 芜湖 241002First Affiliated Hospital, Wannan Medical College, Wuhu 241002, China
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Cao B, Bao Y, Liu C, Qi Q, Zhao Y, Yang F. A gene polymorphism at SP-B 1580 site regulates the pulmonary surfactant tension of viral pneumonia through the cellular pyroptosis signaling pathway. Am J Transl Res 2023; 15:6949-6958. [PMID: 38186981 PMCID: PMC10767512] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 12/05/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Viral pneumonias, such as SARS and MERS, have been a recurrent challenge for the public healthcare system. COVID-19 posed an unprecedented global crisis. The primary impact of viral pneumonia is pathologic changes of lung tissue. However, the effect of SP-B site gene polymorphism on alveolar surface tension in viral pneumonia remains unexplored. OBJECTIVE To explore the molecular mechanism of how the gene polymorphism at SP-B 1580 site regulates the pulmonary surfactant tension of viral pneumonia through the cellular pyroptosis signaling pathway using an in vivo animal experiment and a clinical trial. METHODS We constructed a genetically modified mouse model of viral pneumonia and administered H5N1 influenza virus through intratracheal injection. After 48 hours, the survival rate of each mouse group was evaluated. Lung tissue, blood, and bronchoalveolar lavage fluid samples were collected for histopathologic analysis. Inflammatory factor concentrations were measured using ELISA. The level of apoptosis was determined using TUNEL assay. Changes in the expression of cell death-related factors were assessed using qRT-PCR and protein blotting. Additionally, blood samples from patients with viral pneumonia were analyzed to detect single nucleotide polymorphisms and explore their correlation with disease severity, inflammatory factor levels, and pulmonary surfactant protein expression. RESULTS Following H5N1 infection of mice, the model group and hSP-B-C group showed high mortality rates within 24 hours. The survival rates in the blank control group, virus model group, hSP-B-C group, and hSP-B-T group were 100%, 50%, 37.5%, and 75%, respectively. Histologic analysis revealed significant lung tissue damage, congestion, alveolar destruction, and thickened alveolar septa in the model and hSP-B-C groups. However, these pulmonary lesions were significantly alleviated in the hSP-B-T group. Inflammatory factor levels were elevated in the model and hSP-B-C groups but reduced in the hSP-B-T group. TUNEL assay demonstrated a decrease in apoptotic cells in the lungs of the hSP-B-T group. Furthermore, the expression of SP-B and cell death-related proteins was downregulated in all three groups, with the lowest expression observed in the hSP-B-C group. The clinical trial found that patients with severe viral pneumonia exhibited a higher frequency of CC genotype and C allele in, along with increased inflammatory factor levels and decreased SP-B expression compared to those with mild-to-moderate viral pneumonia. CONCLUSION SP-B polymorphism at the 1580 site regulates lung surfactant tension through the cell pyroptosis signaling pathway, thus affecting the progression of viral pneumonia.
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Affiliation(s)
- Bin Cao
- Department of Emergency, People’s Hospital Affiliated to Shandong First Medical University, Jinan Municipal Key Laboratory of Acute Lung Injury Medicine, Jinan Municipal Clinical Research Center of Critical Care Medicine, Jinan Municipal Clinical Research Center of Respiratory MedicineJinan 271199, Shandong, China
| | - Yuzhen Bao
- Department of Emergency, People’s Hospital Affiliated to Shandong First Medical University, Jinan Municipal Key Laboratory of Acute Lung Injury Medicine, Jinan Municipal Clinical Research Center of Critical Care Medicine, Jinan Municipal Clinical Research Center of Respiratory MedicineJinan 271199, Shandong, China
| | - Chunli Liu
- Department of Critical Care Medicine, Shandong Province Public Health CenterJinan 250000, Shandong, China
| | - Qian Qi
- Respiratory Department, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Institute of Respiratory DiseasesJinan 250014, Shandong, China
| | - Yuanhao Zhao
- Clinical Laboratory, People’s Hospital Affiliated to Shandong First Medical University, Jinan Municipal Clinical Research Center of Critical Care MedicineJinan 271199, Shandong, China
| | - Fengyong Yang
- Department of Emergency, People’s Hospital Affiliated to Shandong First Medical University, Jinan Municipal Key Laboratory of Acute Lung Injury Medicine, Jinan Municipal Clinical Research Center of Critical Care Medicine, Jinan Municipal Clinical Research Center of Respiratory MedicineJinan 271199, Shandong, China
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Wu Q, Ma Q, Ma J, Chen J, Zhuang B, Yang S, Liu J, Wen S. Cascade Amplification of Pyroptosis and Apoptosis for Cancer Therapy through a Black Phosphorous-Doped Thermosensitive Hydrogel. Pharmaceutics 2023; 15:1830. [PMID: 37514017 PMCID: PMC10383820 DOI: 10.3390/pharmaceutics15071830] [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: 05/23/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
Cell pyroptosis has a reciprocal relationship with various cancer treatment modalities such as chemotherapy. However, the tumor microenvironment, characterized by hypoxia, substantially restricts the development and application of tumor therapies that integrate cell pyroptosis. Therefore, the cascade amplification of oxidative stress by interfering with redox homeostasis in tumors may be a promising approach. In this study, black phosphorus (BP) nanosheets and a glutathione peroxidase 4 inhibitor (RSL3) were coloaded into a thermosensitive PDLLA-PEG-PDLLA (PLEL) hydrogel (RSL3/BP@PLEL). Owing to the photothermal property of BP nanosheets, the RSL3/BP@PLEL hydrogel may trigger the release of loaded drugs in a more controllable and on-demand manner. Investigation of the antitumor effect in a mouse liver tumor model demonstrated that local injection of the hydrogel formulation in combination with near infrared laser irradiation could efficiently suppress tumor growth by interfering with the redox balance in tumors. Mechanistic study indicated that the combined treatment of photothermal therapy and glutathione depletion based on this hydrogel efficiently induced cell pyroptosis through both caspase-1/GSDMD and caspase-3/GSDME pathways, thereby triggering the repolarization of tumor-associated macrophages from M2 to M1. Overall, we developed a biocompatible and biodegradable hydrogel formulation for application in combination cancer treatment, providing a new platform for enhancing the efficacy of cancer therapy by amplifying cell pyroptosis and apoptosis.
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Affiliation(s)
- Qing Wu
- Department of Hepatic-Biliary-Pancreatic Surgery, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Qinghui Ma
- Department of Oncology, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Jun Ma
- Department of Gastroenterology, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Junpeng Chen
- Department of Hepatic-Biliary-Pancreatic Surgery, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Baoding Zhuang
- Department of Hepatic-Biliary-Pancreatic Surgery, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Shanglin Yang
- Department of Hepatic-Biliary-Pancreatic Surgery, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Jinji Liu
- Department of Oncology, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
| | - Shunqian Wen
- Department of Hepatic-Biliary-Pancreatic Surgery, Affiliated Foshan Hospital of Southern Medical University, Foshan 528000, China
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Li W, Li J, Wu Y, Zhou T. A Novel Method in Identifying Pyroptosis and Apoptosis Based on the Double Resonator Piezoelectric Cytometry Technology. Biosensors (Basel) 2023; 13:356. [PMID: 36979568 PMCID: PMC10046136 DOI: 10.3390/bios13030356] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
In this study, a double resonator piezoelectric cytometry (DRPC) technology based on quartz crystal microbalance (QCM) was first employed to identify HeLa cell pyroptosis and apoptosis by monitoring cells' mechanical properties in a real-time and non-invasive manner. AT and BT cut quartz crystals with the same frequency and surface conditions were used concurrently to quantify the cells-exerted surface stress (ΔS). It is the first time that cells-exerted surface stress (ΔS) and cell viscoelasticity have been monitored simultaneously during pyroptosis and apoptosis. The results showed that HeLa pyroptotic cells exerted a tensile stress on quartz crystal along with an increase in the elastic modulus (G'), viscous modulus (G″), and a decrease of the loss tangent (G″/G'), whereas apoptotic cells exerted increasing compressive stress on quartz crystal along with a decrease in G', G″ and an increase in G″/G'. Furthermore, engineered GSDMD-/--DEVD- HeLa cells were used to investigate drug-induced disturbance and testify the mechanical responses during the processes of pyroptosis and non-pyroptosis. These findings demonstrated that the DRPC technology can serve as a precise cytomechanical sensor capable of identifying pyroptosis and apoptosis, providing a novel method in cell death detection and paving the road for pyroptosis and apoptosis related drug evaluation and screening.
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Affiliation(s)
- Wenwei Li
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Engineering Technology Research Center for Cell Mechanics and Function Analysis, Changsha 410128, China
| | - Jing Li
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Yanyang Wu
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Tiean Zhou
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Engineering Technology Research Center for Cell Mechanics and Function Analysis, Changsha 410128, China
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Chen Y, Wang L, Huang ZS, Feng JX, Li SX, Du ZJ, Zhang ZB, Liu J, Yang J, Hu ZM, Wang ZL, Chen J. Cytoskeletal protein SPTA1 mediating the decrease in erectile function induced by high-fat diet via Hippo signaling pathway. Andrology 2023; 11:591-610. [PMID: 36374586 DOI: 10.1111/andr.13338] [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: 06/29/2022] [Revised: 11/01/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND The mechanism of high-fat diet (HFD)-induced decrease in erectile function has not been elucidated, and in previous studies, spectrin alpha, erythrocytic 1 (SPTA1) is a cytoskeletal protein that regulates cellular function, which belongs to a family of proteins that can affect cell and tissue growth and development by regulating YAP, an effector on the Hippo signaling pathway, but its particular role has not been elucidated. OBJECTIVE To explore the role of SPTA1 in the abnormality of erectile function induced by HFD. METHODS We analyzed the penile tissues of mice on normal diet and HFD by transcriptomics and screened for differentially expressed genes, further identified closely related target genes in rat penile tissues, and verified target gene expression in in vitro construction of high-glucose (HG)-treated corpus cavernosum endothelial cells (CCECs) and corpus cavernosum smooth muscle cells (CCSMCs) models. The distribution of target genes in various cell populations in penile tissues was retrieved by single-cell sequencing Male Health Atlas database. Moreover, interfering with target genes was further applied to explore the mechanisms involved in erectile function decline. RESULTS Transcriptomic analysis screened out down-regulated differential gene SPTA1; Western blot and immunohistochemistry results showed that SPTA1 expression significantly decreased in the penile tissues of Sprague-Dawley (SD) rats in the HFD group. Immunofluorescence staining showed a positive expression of CD31 and VWF in CCECs and a positive expression of α-SMA in CCSMCs. The expression level of SPTA1 protein significantly decreased in the HG group of CCECs and CCSMCs. The expression of SPTA1 mRNA significantly decreased in CCSMCs while significantly increased in CCECs. SPTA1 may have various expression patterns and biological functions in different cell populations. Real-time quantitative PCR results showed that the siSPTA1 transfected in CCSMCs had a significant interference effect compared with the control siNC. Transfection of siSPTA1 into CCSMCs resulted in the significant down-regulation of mRNA and protein expression of eNOS, and significant up-regulation of YAP, Caspase-1, GSDMD, GSDMD-N IL-18, and IL-1β protein expression levels. The expression level of CCSMCs contractile-type protein α-SMA was significantly down-regulated. CONCLUSIONS The down-regulation of SPTA1 in SD rats fed with HFD may induce cell pyroptosis and lead to the decrease of erectile function by activating the Hippo pathway; these findings may provide new therapeutic targets for improving erectile function.
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Affiliation(s)
- Ying Chen
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Graduate School, Guangxi University of Chinese Medicine, Nanning, China
| | - Lei Wang
- Guangdong Provincial Key Laboratory for Crop Germplasm Resources Preservation and Utilization, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Zhan-Sen Huang
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jia-Xin Feng
- Department of Urinary Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong Province, China
| | - Shi-Xiong Li
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zi-Jun Du
- Graduate School, Guangxi University of Chinese Medicine, Nanning, China
| | - Ze-Bo Zhang
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jing Liu
- Guangdong Provincial Key Laboratory for Crop Germplasm Resources Preservation and Utilization, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Jian Yang
- Department of Veterinary Teaching Hospital, Huazhong Agricultural University, Wu han, China
| | - Zhi-Ming Hu
- Department of Urinary Surgery, Meizhou People's Hospital (Huangtang Hospital), Meizhou, Guangdong, China
| | - Zhi-Lin Wang
- Guangdong Provincial Key Laboratory for Crop Germplasm Resources Preservation and Utilization, Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Jun Chen
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Fang S, Yuan R, Sun R, Ma T. [Knockout of S1PR3 attenuates acute lung injury in mice by inhibiting the MAPK pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1815-21. [PMID: 36651249 DOI: 10.12122/j.issn.1673-4254.2022.12.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To investigate whether knockout of S1PR3 improves lipopolysaccharide (LPS)-induced acute lung injury in mice by inhibiting mitogen activated protein kinases (MAPKs). METHODS Male C57BL/6J and S1PR3 knockout (S1PR3-/-) mice were both randomized into two groups (n=8) for intratracheal instillation of normal saline or LPS to induce acute lung injury. The expressions of S1PR3, IL-1β and IL-18 in the lung tissues were detected using RT-qPCR, lung tissue injury was observed with HE staining, and cell apoptosis was detected using flow cytometry. Western blotting was performed to detect the expression levels of caspase-1, GSDMD, p-JNK, p-ERK and p-p38 proteins. In the cell experiment, type II alveolar epithelial cells (MLE-12 cells) were treated with PBS, LPS, CYM5541 (a S1PR3 agonist), or CYM5541 + LPS, and the cell apoptosis and expression levels of MAPK signal pathway molecules were detected. RESULTS The expression of S1PR3 was up-regulated and serum IL-1β and IL-18 levels were elevated significantly in the nontransgenic mice with acute lung injury (P < 0.001). By comparison, the elevation of IL-1β and IL-18 levels was obviously reduced in S1PR3 knockout mice with acute lung injury, which also showed significant improvement of pulmonary hemorrhage, inflammation and exudation, lowered wet-to-dry ratio of the lungs, and decreased cell apoptosis and expressions of cleaved caspase-1 and GSDMD (P < 0.05). In MLE-12 cells, treatment with the S1PR3 agonist significantly increased the expression of pyroptosis-associated proteins (P < 0.05). S1PR3 knockout strongly inhibited the activation of MAPKs family (JNK and ERK p38; P < 0.05), but their expressions were significantly increased following treatment with the S1PR3 agonist (P < 0.05). CONCLUSION Inhibition of S1PR3 can improve LPSinduced acute lung injury in mice by inhibiting the activation of MAPK signaling.
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Xu J, Zhao X, Jiang X, He L, Wu X, Wang J, Chen Q, Li Y, Zhang M. Tubastatin A Improves Post-Resuscitation Myocardial Dysfunction by Inhibiting NLRP3-Mediated Pyroptosis Through Enhancing Transcription Factor EB Signaling. J Am Heart Assoc 2022; 11:e024205. [PMID: 35322683 PMCID: PMC9075499 DOI: 10.1161/jaha.121.024205] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background Myocardial dysfunction is the leading cause of early death following successful cardiopulmonary resuscitation (CPR) in people with cardiac arrest (CA), which is potentially driven by cell pyroptosis mediated by NOD‐like receptor pyrin domain 3 (NLRP3) inflammasome. Recently, histone deacetylase 6 (HDAC6) inhibition was shown to exert effective myocardial protection against regional ischemia/reperfusion injury. In this study, we investigated whether tubastatin A, a specific histone deacetylase 6 inhibitor, could improve postresuscitation myocardial dysfunction through the inhibition of NLRP3‐mediated cell pyroptosis and its modulation mechanism. Methods and Results Healthy male white domestic swine were used to establish the model of CA/CPR in vivo, and the H9c2 cardiomyocyte hypoxia/reoxygenation model was used to simulate the CA/CPR process in vitro. Consequently, tubastatin A inhibited NLRP3 inflammasome activation, decreased proinflammatory cytokines production and cell pyroptosis, and increased cell survival after hypoxia/reoxygenation in H9c2 cardiomyocytes in vitro. In addition, tubastatin A increased the acetylated levels of transcription factor EB and its translocation to the nucleus, and its protective effect above was partly abrogated by transcription factor EB short interfering RNA after hypoxia/reoxygenation in H9c2 cardiomyocytes. Similarly, tubastatin A promoted cardiac transcription factor EB nuclear translocation, inhibited NLRP3‐mediated cell pyroptosis, and mitigated myocardial dysfunction after CA/CPR in swine. Conclusions The inhibition of histone deacetylase 6 activity by tubastatin A limited NLRP3 inflammasome activation and cell pyroptosis probably through the enhancement of transcription factor EB signaling, and therefore improved myocardial dysfunction after CA/CPR.
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Affiliation(s)
- Jiefeng Xu
- Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province Hangzhou China.,Zhejiang Province Clinical Research Center for Emergency and Critical Care Medicine Hangzhou China
| | - Xue Zhao
- Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,Department of Emergency Medicine Affiliated Hangzhou First People's Hospital Zhejiang University School of Medicine Hangzhou China
| | - Xiangkang Jiang
- Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province Hangzhou China.,Zhejiang Province Clinical Research Center for Emergency and Critical Care Medicine Hangzhou China
| | - Lu He
- Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province Hangzhou China.,Zhejiang Province Clinical Research Center for Emergency and Critical Care Medicine Hangzhou China
| | - Xinjie Wu
- Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,Department of Emergency Medicine The First Hospital of Ninghai Ningbo China
| | | | - Qijiang Chen
- Department of Intensive Care Medicine The First Hospital of Ninghai Ningbo China
| | - Yulin Li
- Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province Hangzhou China.,Zhejiang Province Clinical Research Center for Emergency and Critical Care Medicine Hangzhou China
| | - Mao Zhang
- Department of Emergency Medicine Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China.,Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province Hangzhou China.,Zhejiang Province Clinical Research Center for Emergency and Critical Care Medicine Hangzhou China
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Fu H, Shen QR, Zhao Y, Ni M, Zhou CC, Chen JK, Chi C, Li DJ, Liang G, Shen FM. Activating α7nAChR ameliorates abdominal aortic aneurysm through inhibiting pyroptosis mediated by NLRP3 inflammasome. Acta Pharmacol Sin 2022; 43:2585-2595. [PMID: 35217818 PMCID: PMC9525652 DOI: 10.1038/s41401-022-00876-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/20/2022] [Indexed: 12/16/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is defined as a dilated aorta in diameter at least 1.5 times of a normal aorta. Our previous studies found that activating α7 nicotinic acetylcholine receptor (α7nAChR) had a protective effect on vascular injury. This work was to investigate whether activating α7nAChR could influence AAA formation and explore its mechanisms. AAA models were established by angiotensin II (Ang II) infusion in ApoE−/− mice or in wild type and α7nAChR−/− mice. In vitro mouse aortic smooth muscle (MOVAS) cells were treated with tumor necrosis factor-α (TNF-α). PNU-282987 was chosen to activate α7nAChR. We found that cell pyroptosis effector GSDMD and NLRP3 inflammasome were activated in abdominal aorta, and inflammatory cytokines in serum were elevated in AAA models of ApoE−/− mice. Activating α7nAChR reduced maximal aortic diameters, preserved elastin integrity and decreased inflammatory responses in ApoE−/− mice with Ang II infusion. While α7nAChR−/− mice led to aggravated aortic injury and increased inflammatory cytokines with Ang II infusion when compared with wild type. Moreover, activating α7nAChR inhibited NLRP3/caspase-1/GSDMD pathway in AAA model of ApoE−/− mice, while α7nAChR deficiency promoted this pathway. In vitro, N-acetylcysteine (NAC) inhibited NLRP3 inflammasome activation and NLRP3 knockdown reduced GSDMD expression, in MOVAS cells treated with TNF-α. Furthermore, activating α7nAChR inhibited oxidative stress, reduced NLRP3/GSDMD expression, and decreased cell pyroptosis in MOVAS cells with TNF-α. In conclusion, our study found that activating α7nAChR retarded AAA through inhibiting pyroptosis mediated by NLRP3 inflammasome. These suggested that α7nAChR would be a potential pharmacological target for AAA.
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Sun B, Chen Z, Chi Q, Zhang Y, Gao B. Endogenous tRNA-derived small RNA (tRF3-Thr-AGT) inhibits ZBP1/NLRP3 pathway-mediated cell pyroptosis to attenuate acute pancreatitis (AP). J Cell Mol Med 2021; 25:10441-10453. [PMID: 34643045 PMCID: PMC8581331 DOI: 10.1111/jcmm.16972] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 06/11/2021] [Revised: 08/21/2021] [Accepted: 09/21/2021] [Indexed: 12/14/2022] Open
Abstract
Endogenous transfer RNA‐derived small RNAs (tsRNAs) are newly identified RNAs that are closely associated with the pathogenesis of multiple diseases, but the involvement of tsRNAs in regulating acute pancreatitis (AP) development has not been reported. In this study, we screened out a novel tsRNA, tRF3‐Thr‐AGT, that was aberrantly downregulated in the acinar cell line AR42J treated with sodium taurocholate (STC) and the pancreatic tissues of STC‐induced AP rat models. In addition, STC treatment suppressed cell viability, induced pyroptotic cell death and cellular inflammation in AP models in vitro and in vivo. Overexpression of tRF3‐Thr‐AGT partially reversed STC‐induced detrimental effects on the AR42J cells. Next, Z‐DNA‐binding protein 1 (ZBP1) was identified as the downstream target of tRF3‐Thr‐AGT. Interestingly, upregulation of tRF3‐Thr‐AGT suppressed NOD‐like receptor protein 3 (NLRP3)‐mediated pyroptotic cell death in STC‐treated AR42J cells via degrading ZBP1. Moreover, the effects of tRF3‐Thr‐AGT overexpression on cell viability and inflammation in AR42J cells were abrogated by upregulating ZBP1 and NLRP3. Collectively, our data indicated that tRF3‐Thr‐AGT suppressed ZBP1 expressions to restrain NLRP3‐mediated pyroptotic cell death and inflammation in AP models. This study, for the first time, identified the role and potential underlying mechanisms by which tRF3‐Thr‐AGT regulated AP pathogenesis.
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Affiliation(s)
- Boshi Sun
- The 3rd Department of General Surgery, The 2ndAffiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Zhuomiaoyu Chen
- Department of General Surgery, Peking University People's Hospital, Beijing, China
| | - Qiang Chi
- The 3rd Department of General Surgery, The 2ndAffiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yifan Zhang
- Department of General Surgery, Peking University People's Hospital, Beijing, China
| | - Bo Gao
- Department of General Surgery, Peking University People's Hospital, Beijing, China
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10
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Huang Y, Zhang G, Zhu Q, Wu X, Wu L. Role of Cytokines Released During Pyroptosis in Non-Small Cell Lung Cancer. Cancer Manag Res 2021; 13:7399-7409. [PMID: 34594133 PMCID: PMC8478113 DOI: 10.2147/cmar.s330232] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 08/09/2021] [Accepted: 09/10/2021] [Indexed: 12/22/2022] Open
Abstract
Purpose Pyroptosis is a recently discovered highly inflammatory form of programmed cell death, during which the N-terminus of the cleaved Gasdermin protein family forms pores in the cell membrane, leading to cell disintegration and the release of certain intracellular factors, including caspase3, gasdermin E (GSDME), and high mobility group proteins (HMGB1), which trigger a series of secondary inflammatory reactions. Specifically, caspase3 can lyse GSDME and induce pyrolysis, while HMGB1 is released passively after cell membrane destruction. In this study, the roles of these proteins in lung cancer tissues as well as their clinical significance were investigated. Patients and Methods The expression levels of GSDME, caspase3, and HMGB1 proteins in lung cancer and paracancerous tissues were determined via immunohistochemical staining, and their relationship with the clinical stage, pathological grade, and survival prognosis of the patients was analyzed. Further, CD8+ T cell accumulation in the above-mentioned tissues was also determined, and differences between them with respect to CD8+T cell distribution were also investigated. Furthermore, the relationships between CD8+ T cell abundance and the expression levels of the above-mentioned proteins were determined via statistical analyses. Results Lung cancer and paracancerous tissues showed significantly different GSDME, caspase3, and HMGB1 protein expression levels. GSDME expression level and the presence or absence of lymph node invasion were identified as prognostic indicators of survival in patients with lung cancer. Surprisingly, however, HMGB1, which showed a certain level of correlation with the presence or absence of lymph node metastasis, could not be used as a prognostic indicator of survival. Conclusion GSDME may be an important prognostic indicator of survival in patients with lung cancer. However, the effects of HMGB1 expression level and CD8+ T cell abundance on the prognosis of patients with lung cancer still need further investigation.
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Affiliation(s)
- Yuanli Huang
- Department of Pathology, the First Affiliated Hospital of Bengbu Medical College, Bengbu City, Anhui Province, People's Republic of China.,Graduate School of Bengbu Medical College, Bengbu City, Anhui Province, People's Republic of China
| | - Guanghui Zhang
- Department of Pathology, the First Affiliated Hospital of Bengbu Medical College, Bengbu City, Anhui Province, People's Republic of China.,Graduate School of Bengbu Medical College, Bengbu City, Anhui Province, People's Republic of China
| | - Qing Zhu
- Department of Pathology, the First Affiliated Hospital of Bengbu Medical College, Bengbu City, Anhui Province, People's Republic of China
| | - Xia Wu
- Department of Pathology, Fuyang Tumor Hospital, Fuyang City, Anhui Province, People's Republic of China
| | - Ligao Wu
- Department of Pathology, the First Affiliated Hospital of Bengbu Medical College, Bengbu City, Anhui Province, People's Republic of China
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11
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Shi F, Zhang L, Liu X, Wang Y. Knock-down of microRNA miR-556-5p increases cisplatin-sensitivity in non-small cell lung cancer (NSCLC) via activating NLR family pyrin domain containing 3 (NLRP3)-mediated pyroptotic cell death. Bioengineered 2021; 12:6332-6342. [PMID: 34488537 PMCID: PMC8806686 DOI: 10.1080/21655979.2021.1971502] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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] [Indexed: 12/24/2022] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that are closely associated with cancer progression and drug resistance, however, up until now, the involvement of miR-556-5p in regulating cisplatin-sensitivity in non-small cell lung cancer (NSCLC) has not been studied. In the present study, we found that miR-556-5p was significantly upregulated in the cisplatin-resistant NSCLC (CR-NSCLC) patients’ tissues and cells, instead of the corresponding cisplatin-sensitive NSCLC (CS-NSCLC) tissues and cells. Further experiments validated that knock-down of miR-556-5p suppressed cell viability and tumorigenesis, and induced cell apoptosis in the cisplatin-treated CR-NSCLC cells, and conversely, upregulation of miR-556-5p increased cisplatin-resistance in CS-NSCLC cells. Interestingly, miR-556-5p ablation triggered pyroptotic cell death in cisplatin-treated CR-NSCLC cells via upregulating NLRP3, and the promoting effects of miR-556-5p silence on cisplatin-sensitivity in CR-NSCLC cells were abrogated by both cell pyroptosis inhibitor NSA and NLRP3 downregulation. Taken together, this study firstly evidenced that induction of NLRP3-mediated cell pyroptosis by miR-556-5p downregulation was effective to increase cisplatin-sensitivity in NSCLC, which provided new therapy strategies to overcome chemo-resistance for NSCLC patients in clinic.
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Affiliation(s)
- Feng Shi
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Luquan Zhang
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Xing Liu
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yue Wang
- Department of Pharmacology and Toxicology, Wright State University, Dayton, OH, USA
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12
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Ling H, Li Q, Duan ZP, Wang YJ, Hu BQ, Dai XG. LncRNA GAS5 inhibits miR-579-3p to activate SIRT1/PGC-1α/Nrf2 signaling pathway to reduce cell pyroptosis in sepsis-associated renal injury. Am J Physiol Cell Physiol 2021; 321:C117-C133. [PMID: 34010066 DOI: 10.1152/ajpcell.00394.2020] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Sepsis is a life-threatening condition that can lead to several organ failures including kidney. In this study, we investigated the roles of GAS5 and miR-579-3p in regulating cell pyroptosis in the sepsis-induced renal injury model. Lipopolysaccharide (LPS) treatment or cecal ligation and puncture (CLP) surgery was used to create the in vitro and in vivo sepsis-induced renal injury model. The interactions between GAS5 and miR-579-3p, and miR-579-3p and SIRT1 were determined by bioinformatic prediction, luciferase reporter assay, and RIP assay. In vitro cell pyroptosis was examined by flow cytometry marked with active caspase-1 and PI. The protein levels of IL-1β and IL-18 induced by cell pyroptosis were quantified using ELISA assay. In vivo renal injuries were evaluated with HE and TUNEL stainings, bacterial load in serum and creatinine, and blood urea nitrogen content analyses. Expression levels of GAS5, miR-579-3p, pyroptosis, and SIRT1/PGC-1a/Nrf2 pathway-related molecules were evaluated by qRT-PCR or Western blot. GAS5 and SIRT1 were downregulated, whereas miR-579-3p was upregulated in in vitro and in vivo sepsis-induced renal injury models. GAS5 negatively and directly regulated miR-579-3p to reduce cell pyroptosis via the activation of SIRT1/PGC-1a/Nrf2 pathway. In addition, miR-579-3p suppressed PGC-1a/Nrf2 pathway to induce cell pyroptosis by directly targeting SIRT1. What's more, overexpression of GAS5, or knockdown of miR-579-3p, enhanced SIRT1 expression that led to the improved survival rate, reduced the weight loss, and relieved renal injuries in septic mice. Overexpression of GAS5 demonstrated protective effects against sepsis-induced renal injury via downregulating miR-579-3p and activating SIRT1/PGC-1α/Nrf2 pathway to inhibit cell pyroptosis.
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Affiliation(s)
- Hua Ling
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital, Southern Medical University (The First People's Hospital of Chenzhou), Chenzhou, People's Republic of China
| | - Qiong Li
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital, Southern Medical University (The First People's Hospital of Chenzhou), Chenzhou, People's Republic of China
| | - Ze-Peng Duan
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital, Southern Medical University (The First People's Hospital of Chenzhou), Chenzhou, People's Republic of China
| | - Yu-Jing Wang
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital, Southern Medical University (The First People's Hospital of Chenzhou), Chenzhou, People's Republic of China
| | - Bing-Qin Hu
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital, Southern Medical University (The First People's Hospital of Chenzhou), Chenzhou, People's Republic of China
| | - Xin-Gui Dai
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital, Southern Medical University (The First People's Hospital of Chenzhou), Chenzhou, People's Republic of China
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13
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Wang Y, Zhou X, Zou K, Chen G, Huang L, Yang F, Pan W, Xu H, Xu Z, Chen H, Chen J, Gong S, Zhou X, Xu W, Zhao J. Monocarboxylate Transporter 4 Triggered Cell Pyroptosis to Aggravate Intestinal Inflammation in Inflammatory Bowel Disease. Front Immunol 2021; 12:644862. [PMID: 34093533 PMCID: PMC8170300 DOI: 10.3389/fimmu.2021.644862] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/26/2021] [Indexed: 01/17/2023] Open
Abstract
NLRP3 inflammasome has emerged as a crucial regulator of inflammatory bowel disease (IBD) characterized by a chronic inflammatory disease of the gastrointestinal tract. The expression of MCT4 is significantly increased in intestinal mucosal tissue of IBD, which has been identified to regulate intestinal barrier function. However, the function of MCT4 in cell pyroptosis remained unknown. In this study, we have established a stable cell line with MCT4 overexpression in HT-29 and CaCO2 cells, respectively. Functional analysis revealed that ectopic expression of MCT4 in CaCO2 cells contributed to cell pyroptosis as evidenced by LDH assay, which is largely attributed to Caspase-1-mediated canonical pyroptosis, but not Caspase-4 and Caspase-5, leading to cleave pro-IL-1β and IL-18 into mature form and release mediated by cleaved GSDMD. Mechanically, MCT4 overexpression in HT-29 and CaCO2 cell triggered the phosphorylation of ERK1/2 and NF-κB p65, while inhibition of MCT4 by MCT inhibitor α-Cyano-4-hydroxycinnamic acid (α-CHCA) in HT-29 and CaCO2 cells led to a significant downregulation of ERK1/2 and NF-κB activity. What’s more, blockade of ERK1/2-NF-κB pathway could reverse the promotion effect of MCT4 on IL-1β expression. Importantly, both MCT4 and Caspase-1, GSDMD were significantly increased in patients with IBD, and a positive clinical correlation between MCT4 and Caspase-1 expression was observed (p < 0.001). Taken together, these findings suggested that MCT4 promoted Caspase-1-mediated canonical cell pyroptosis to aggravate intestinal inflammation in intestinal epithelial cells (IECs) through the ERK1/2-NF-κB pathway.
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Affiliation(s)
- Yaodong Wang
- Department of Gastroenterology, Kunshan Hospital of Traditional Chinese Medicine, Kunshan Affiliated Hospital of Nanjing University of Chinese Medicine, Kunshan, China
| | - Xiaorong Zhou
- Department of Respiratory and Critical Care, The Fifth Affiliated Hospital Sun Yat-Sen University, Zhuhai, China
| | - Kejian Zou
- Department of General Surgery, Hainan General Hospital, Haikou, China
| | - Guanhua Chen
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ling Huang
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Fangying Yang
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Wenxu Pan
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Hongwei Xu
- Department of Gastroenterology, Kunshan Hospital of Traditional Chinese Medicine, Kunshan Affiliated Hospital of Nanjing University of Chinese Medicine, Kunshan, China
| | - Zhaohui Xu
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Huan Chen
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jiayu Chen
- Department of Neonatal Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Sitang Gong
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xuan Zhou
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Wanfu Xu
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Junhong Zhao
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
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14
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Yin Y, Wu X, Peng B, Zou H, Li S, Wang J, Cao J. Curcumin improves necrotising microscopic colitis and cell pyroptosis by activating SIRT1/NRF2 and inhibiting the TLR4 signalling pathway in newborn rats. Innate Immun 2020; 26:609-617. [PMID: 32924710 PMCID: PMC7556186 DOI: 10.1177/1753425920933656] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
This study aimed to explore comprehensively the biological function of curcumin, and its underlying mechanism, in protecting from necrotising microscopic colitis in newborn rats. A total of 20 normal healthy rats were selected, and a necrotising enterocolitis (NEC) model was established. After hypoxia and hypothermia stimulation, these rats were treated with different doses of curcumin (control group, NEC model group, NEC+20 mg/kg curcumin and NEC+50 mg/kg curcumin). Inflammation was identified using hematoxylin and eosin staining, and inflammatory factors were detected via ELISA. The mRNA and protein levels of SIRT1, NRF2, TLR4, NLRP3 and caspase-1 were determined by quantitative RT-PCR and Western blotting, respectively. Curcumin improved the inflammatory condition of NEC and inhibited the expression of inflammatory factors in NEC newborn rat intestinal tissue. Furthermore, the SIRT1/NRF2 pathway was inhibited in the intestinal tissue of NEC newborn rats, whereas curcumin treatment induced the activation of the SIRT1/NRF2 pathway and inhibited TLR4 expression in these animals. In addition, curcumin could also inhibit the expression of inflammatory factors and alleviate the LPS/ATP-induced focal death pathway in intestinal epithelial cells through the SIRT1 pathway. Curcumin can improve necrotising microscopic colitis and cell pyroptosis by attenuating NEC-induced inhibition of SIRT1/NRF2 and inhibiting the TLR4 signalling pathway in newborn rats.
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Affiliation(s)
- Yiyu Yin
- Department of General Surgery, Xuzhou Children’s Hospital, Xuzhou Medical University, PR China
| | - Xiaole Wu
- Department of Anaesthesiology, Xuzhou Children’s Hospital, Xuzhou Medical University, PR China
| | - Bei Peng
- Department of Anaesthesiology, Xuzhou Children’s Hospital, Xuzhou Medical University, PR China
| | - Huaxin Zou
- Department of General Surgery, Xuzhou Children’s Hospital, Xuzhou Medical University, PR China
| | - Shixian Li
- Department of General Surgery, Xuzhou Children’s Hospital, Xuzhou Medical University, PR China
| | - Jian Wang
- Department of General Surgery, Children’s Hospital affiliated to Suzhou University, PR China
| | - Junhua Cao
- Department of Emergency Medicine, Xuzhou Children’s Hospital, Xuzhou Medical University, PR China
- Junhua Cao, Department of Emergency Medicine, Xuzhou Children’s Hospital, Xuzhou Medical University; 18 North Sudi Road, Xuzhou 221006, PR China.
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