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Yang D, Wang X, Sun Y, Shao Y, Shi X. Identification and experimental validation of genes associated with programmed cell death in dendritic cells of the thyroid tissue in Hashimoto's thyroiditis. Int Immunopharmacol 2024; 142:113083. [PMID: 39260305 DOI: 10.1016/j.intimp.2024.113083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 08/28/2024] [Accepted: 09/02/2024] [Indexed: 09/13/2024]
Abstract
INTRODUCTION Hashimoto's thyroiditis (HT) is a chronic autoimmune disorder. As antigen-presenting cells, dendritic cells(DCs) play a pivotal role in inducing programmed cell death (PCD) types, contributing to immune disorders. This study aimed to identify genes associated with multiple PCD pathways in dendritic cells within the thyroid tissue of patients with HT. METHODS ce single-cell RNA-sequencing dataset HRA001684 was obtained from the National Genomics Data Center (NGDC) to calculate the area under the curve (AUC) scores for PCD-related genes. Additionally, mRNA sequencing datasets GSE138198 and HRA001684 were sourced from the Gene Expression Omnibus(GEO) and NGDC, respectively. Differentially expressed genes (DEGs) were identified by comparing normal and HT groups in GSE138198 and HRA001684. The intersection of these DEGs with PCD-related genes led to the identification of 17 PCD-related DEGs(PCDDEGs). RESULTS AUC scores revealed that DCs in HT exhibited significantly elevated levels of necroptosis, ferroptosis, pyroptosis, autophagy, and PANoptosis, expressing six key PCDDEGs: TNFAIP3, CYBB, PTPN6, STAT1, TGFB1, and NLRP3. These genes displayed an AUC>0.8 for HT in the GSE29315, GSE138198, and HRA001684 datasets, confirming their diagnostic accuracy. Moreover, their expression was positively correlated with the serum levels of thyroid peroxidase and thyroglobulin antibodies, while the expression of all PCDDEGs was negatively correlated with the abundance of thyroid follicular epithelial cells. qRT-PCR, WB, IHC, and IF experiments further confirmed the differences in PCDDEGs gene and protein levels in HT patients. DISCUSSION These findings highlight the crucial role of DCs in mediating PCD within the thyroid tissues of HT patients. The identified PCDDEGs-TNFAIP3, CYBB, PTPN6, STAT1, TGFB1, and NLRP3-may significantly contribute to HT pathogenesis through PCD pathways.
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Affiliation(s)
- Dongyu Yang
- Shengjing Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, PR China
| | - Xichang Wang
- Shengjing Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, PR China
| | - Ying Sun
- Shengjing Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, PR China
| | - Ying Shao
- Shengjing Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, PR China
| | - Xiaoguang Shi
- Shengjing Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, PR China.
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2
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Yang R, Di Y, Song X, Zhao H, Cheng Y, Lu C, Yang Y, Sun M, Zhou Z. Michael Addition-Based Neoadjuvant for Enhanced Cancer Immunotherapy. ACS NANO 2024. [PMID: 39052870 DOI: 10.1021/acsnano.4c08014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Cancer immunotherapy suffers from inefficient antigen presentation owing to the limited endocytosis of antigen by dendritic cells (DCs) and dysfunction of DCs in the immunosuppressive tumor microenvironment (ITME). Here, we revealed that cinnamaldehyde-grafted polyethylenimine (PC) held the potential to serve as a neoadjuvant to modulate the above processes and thus potentiate immune responses. The PC neoadjuvant could capture the tumor antigen generated during chemotherapy to enhance the crosstalk between the antigen and DCs. Then, it depleted the intracellular glutathione by the in situ Michael addition reaction, which not only activated the NOD-, LRR-, and pyrin domain-containing 3 (NLRP3) pathway to promote DCs maturation but also triggered the antigen release. As a result, it significantly augmented antigen presentation with a 46% ratio of DCs maturation and a 53% ratio of CD8+ T cell infiltration in low immunogenic murine breast cancer.
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Affiliation(s)
- Ruoxi Yang
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 TongJiaXiang, Nanjing 210009, China
- Bioscience and Biomedical Engineering Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou 511455, China
| | - Yongxiang Di
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 TongJiaXiang, Nanjing 210009, China
- Bioscience and Biomedical Engineering Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou 511455, China
| | - Xiaoning Song
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 TongJiaXiang, Nanjing 210009, China
| | - Huimin Zhao
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 TongJiaXiang, Nanjing 210009, China
| | - Yide Cheng
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 TongJiaXiang, Nanjing 210009, China
| | - Cunzhen Lu
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 TongJiaXiang, Nanjing 210009, China
| | - Ying Yang
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 TongJiaXiang, Nanjing 210009, China
| | - Minjie Sun
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 TongJiaXiang, Nanjing 210009, China
| | - Zhanwei Zhou
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 TongJiaXiang, Nanjing 210009, China
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Sun Q, Hu M, Yuan C, Ren B, Zhong M, Zhou S, Wang X, Gao Q, Zeng M, Cai X, Song H. Astragaloside IV ameliorates indomethacin-induced intestinal inflammation in rats through inhibiting the activation of NLRP3 inflammasome. Int Immunopharmacol 2024; 135:112281. [PMID: 38762925 DOI: 10.1016/j.intimp.2024.112281] [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: 02/21/2024] [Revised: 04/23/2024] [Accepted: 05/14/2024] [Indexed: 05/21/2024]
Abstract
The administration of nonsteroidal anti-inflammatory drugs (NSAIDs) may cause significant intestinal alteration and inflammation and lead to the occurrence of inflammatory diseases resembling duodenal ulcers. Astragaloside IV (AS-IV) is a glycoside of cycloartane-type triterpene isolated from the dried root of Astragalus membranaceus (Fisch.) Bge. (family Fabaceae), and has been used for ameliorating the NSAID-induced inflammation in the small intestine. The present study aimed to investigate the effects of AS-IV on indomethacin (IND)-induced inflammation in the small intestine of rats and its underlying mechanisms. Hematoxylin-eosin (H&E) staining, transmission and scanning electron microscopy were carried out to observe the surface morphology and ultrastructure of the small intestinal mucosa. Immunofluorescence and ELISA tests were employed to detect the expressions of NLRP3, ASC, caspase-1, and NF-κB proteins, as well as inflammatory factors IL-1β and IL-18, to uncover potential molecular mechanisms responsible for mitigating small intestinal inflammation. The results demonstrated that AS-IV significantly decreased the ulcer index, improved the surface morphology and microstructure of the small intestinal mucosa, and increased mucosal blood flow. Molecular docking revealed a strong and stable binding capacity of AS-IV to NLRP3, ASC, caspase-1, and NF-κB proteins. Further experimental validation exhibited that AS-IV markedly decreased levels of IL-1β and IL-18, and inhibited the protein expression of NLRP3, ASC, caspase-1, and NF-κB. Our data demonstrate that AS-IV ameliorates IND-induced intestinal inflammation in rats by inhibiting the activation of NLRP3 inflammasome and reducing the release of IL-1β and IL-18, thereby representing a promising therapy for IND-induced intestinal inflammation.
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Affiliation(s)
- Qifang Sun
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics and School of Chinese Medical Sciences, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China; Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Mingyue Hu
- Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Chengzhi Yuan
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics and School of Chinese Medical Sciences, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Baoping Ren
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics and School of Chinese Medical Sciences, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Meiqi Zhong
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics and School of Chinese Medical Sciences, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Shunhua Zhou
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics and School of Chinese Medical Sciences, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Xiaojuan Wang
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics and School of Chinese Medical Sciences, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Qing Gao
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics and School of Chinese Medical Sciences, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Meiyan Zeng
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics and School of Chinese Medical Sciences, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Xiong Cai
- Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China.
| | - Houpan Song
- Hunan Provincial Key Laboratory of Traditional Chinese Medicine Diagnostics and School of Chinese Medical Sciences, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China.
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4
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Yang L, He H, Guo XK, Wang J, Wang W, Li D, Liang S, Shao F, Liu W, Hu X. Intraepithelial mast cells drive gasdermin C-mediated type 2 immunity. Immunity 2024; 57:1056-1070.e5. [PMID: 38614091 DOI: 10.1016/j.immuni.2024.03.017] [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: 09/12/2023] [Revised: 12/31/2023] [Accepted: 03/19/2024] [Indexed: 04/15/2024]
Abstract
A specialized population of mast cells residing within epithelial layers, currently known as intraepithelial mast cells (IEMCs), was originally observed over a century ago, yet their physiological functions have remained enigmatic. In this study, we unveil an unexpected and crucial role of IEMCs in driving gasdermin C-mediated type 2 immunity. During helminth infection, αEβ7 integrin-positive IEMCs engaged in extensive intercellular crosstalk with neighboring intestinal epithelial cells (IECs). Through the action of IEMC-derived proteases, gasdermin C proteins intrinsic to the epithelial cells underwent cleavage, leading to the release of a critical type 2 cytokine, interleukin-33 (IL-33). Notably, mast cell deficiency abolished the gasdermin C-mediated immune cascade initiated by epithelium. These findings shed light on the functions of IEMCs, uncover a previously unrecognized phase of type 2 immunity involving mast cell-epithelial cell crosstalk, and advance our understanding of the cellular mechanisms underlying gasdermin C activation.
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Affiliation(s)
- Liu Yang
- Institute for Immunology, Tsinghua University, Beijing, China; School of Basic Medical Sciences, Tsinghua University, Beijing, China; Tsinghua-Peking Center for Life Sciences, Beijing, China; Beijing Key Laboratory for Immunological Research on Chronic Diseases, Beijing, China
| | - Huabin He
- National Institute of Biological Sciences, Beijing, China
| | - Xue-Kun Guo
- Chinese Institutes for Medical Research, Beijing, China
| | - Jiali Wang
- Institute for Immunology, Tsinghua University, Beijing, China; School of Basic Medical Sciences, Tsinghua University, Beijing, China; Beijing Key Laboratory for Immunological Research on Chronic Diseases, Beijing, China
| | - Wenwen Wang
- Institute for Immunology, Tsinghua University, Beijing, China; School of Basic Medical Sciences, Tsinghua University, Beijing, China; Tsinghua-Peking Center for Life Sciences, Beijing, China; Beijing Key Laboratory for Immunological Research on Chronic Diseases, Beijing, China
| | - Da Li
- National Institute of Biological Sciences, Beijing, China
| | - Shaonan Liang
- Institute for Immunology, Tsinghua University, Beijing, China; School of Basic Medical Sciences, Tsinghua University, Beijing, China; Beijing Key Laboratory for Immunological Research on Chronic Diseases, Beijing, China
| | - Feng Shao
- National Institute of Biological Sciences, Beijing, China; Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China
| | - Wanli Liu
- Institute for Immunology, Tsinghua University, Beijing, China; Tsinghua-Peking Center for Life Sciences, Beijing, China; Beijing Key Laboratory for Immunological Research on Chronic Diseases, Beijing, China; School of Life Sciences, Tsinghua University, Beijing, China; The State Key Laboratory of Membrane Biology, Beijing, China
| | - Xiaoyu Hu
- Institute for Immunology, Tsinghua University, Beijing, China; School of Basic Medical Sciences, Tsinghua University, Beijing, China; Tsinghua-Peking Center for Life Sciences, Beijing, China; Beijing Key Laboratory for Immunological Research on Chronic Diseases, Beijing, China; The State Key Laboratory of Membrane Biology, Beijing, China.
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5
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Dixon KO, Lahore GF, Kuchroo VK. Beyond T cell exhaustion: TIM-3 regulation of myeloid cells. Sci Immunol 2024; 9:eadf2223. [PMID: 38457514 DOI: 10.1126/sciimmunol.adf2223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 02/15/2024] [Indexed: 03/10/2024]
Abstract
T cell immunoglobulin and mucin domain-containing protein 3 (TIM-3) is an important immune checkpoint molecule initially identified as a marker of IFN-γ-producing CD4+ and CD8+ T cells. Since then, our understanding of its role in immune responses has significantly expanded. Here, we review emerging evidence demonstrating unexpected roles for TIM-3 as a key regulator of myeloid cell function, in addition to recent work establishing TIM-3 as a delineator of terminal T cell exhaustion, thereby positioning TIM-3 at the interface between fatigued immune responses and reinvigoration. We share our perspective on the antagonism between TIM-3 and T cell stemness, discussing both cell-intrinsic and cell-extrinsic mechanisms underlying this relationship. Looking forward, we discuss approaches to decipher the underlying mechanisms by which TIM-3 regulates stemness, which has remarkable potential for the treatment of cancer, autoimmunity, and autoinflammation.
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Affiliation(s)
- Karen O Dixon
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital, and Harvard Medical School, Boston, MA 02115, USA
| | - Gonzalo Fernandez Lahore
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital, and Harvard Medical School, Boston, MA 02115, USA
| | - Vijay K Kuchroo
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital, and Harvard Medical School, Boston, MA 02115, USA
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6
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Zhang H, Gao J, Tang Y, Jin T, Tao J. Inflammasomes cross-talk with lymphocytes to connect the innate and adaptive immune response. J Adv Res 2023; 54:181-193. [PMID: 36681114 DOI: 10.1016/j.jare.2023.01.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 10/15/2022] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Innate and adaptive immunity are two different parts of the immune system that have different characteristics and work together to provide immune protection. Inflammasomes are a major part of the innate immune system that are expressed widely in myeloid cells and are responsible for inflammatory responses. Recent studies have shown that inflammasomes are also expressed and activated in lymphocytes, especially in T and B cells, to regulate the adaptive immune response. Activation of inflammasomes is also under the control of lymphocytes. Therefore, we propose that inflammasomes act as a bridge and they provide crosstalk between the innate and adaptive immune systems to obtain a fine balance in immune responses. AIM OF REVIEW This review systematially summarizes the interaction between inflammasomes and lymphocytes and describes the crosstalk between the innate and adaptive immune systems induced by inflammasomes, with the aim of providing new directions and important areas for further research. KEY SCIENTIFIC CONCEPTS OF REVIEW When considering the novel function of inflammasomes in various lymphocytes, attention should be given to the activity of specific inflammasomes in studies of lymphocyte function. Moreover, research on the function of various inflammasomes in lymphocytes will help advance knowledge on the mechanisms and treatment of various diseases, including autoimmune diseases and tumors. In addition, when studying inflammatory responses, inflammasomes in both lymphocytes and myeloid cells need to be considered.
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Affiliation(s)
- Hongliang Zhang
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China; College of Medicine and Health, Lishui University, No. 1 Xueyuan Road, Liandu District, Lishui 323000, China
| | - Jie Gao
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yujie Tang
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Tengchuan Jin
- Laboratory of Structural Immunology, CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
| | - Jinhui Tao
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
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7
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Liu W, Peng J, Xiao M, Cai Y, Peng B, Zhang W, Li J, Kang F, Hong Q, Liang Q, Yan Y, Xu Z. The implication of pyroptosis in cancer immunology: Current advances and prospects. Genes Dis 2023; 10:2339-2350. [PMID: 37554215 PMCID: PMC10404888 DOI: 10.1016/j.gendis.2022.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 04/18/2022] [Accepted: 04/25/2022] [Indexed: 11/18/2022] Open
Abstract
Pyroptosis is a regulated cell death pathway involved in numerous human diseases, especially malignant tumors. Recent studies have identified multiple pyroptosis-associated signaling molecules, like caspases, gasdermin family and inflammasomes. In addition, increasing in vitro and in vivo studies have shown the significant linkage between pyroptosis and immune regulation of cancers. Pyroptosis-associated biomarkers regulate the infiltration of tumor immune cells, such as CD4+ and CD8+ T cells, thus strengthening the sensitivity to therapeutic strategies. In this review, we explained the relationship between pyroptosis and cancer immunology and focused on the significance of pyroptosis in immune regulation. We also proposed the future application of pyroptosis-associated biomarkers in basic research and clinical practices to address malignant behaviors. Exploration of the underlying mechanisms and biological functions of pyroptosis is critical for immune response and cancer immunotherapy.
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Affiliation(s)
- Wei Liu
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Department of Orthopedic Surgery, The Second Hospital University of South China, Hengyang, Hunan 421001, China
| | - Jinwu Peng
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Department of Pathology, Xiangya Changde Hospital, Changde, Hunan 415000, China
| | - Muzhang Xiao
- Department of Burn and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yuan Cai
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Bi Peng
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Wenqin Zhang
- Department of Pathology, Xiangya Changde Hospital, Changde, Hunan 415000, China
| | - Jianbo Li
- Department of Pathology, Xiangya Changde Hospital, Changde, Hunan 415000, China
| | - Fanhua Kang
- Department of Pathology, Xiangya Changde Hospital, Changde, Hunan 415000, China
| | - Qianhui Hong
- Department of Pathology, Xiangya Changde Hospital, Changde, Hunan 415000, China
| | - Qiuju Liang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yuanliang Yan
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Zhijie Xu
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
- Department of Pathology, Xiangya Changde Hospital, Changde, Hunan 415000, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
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Tengesdal IW, Dinarello CA, Marchetti C. NLRP3 and cancer: Pathogenesis and therapeutic opportunities. Pharmacol Ther 2023; 251:108545. [PMID: 37866732 PMCID: PMC10710902 DOI: 10.1016/j.pharmthera.2023.108545] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/20/2023] [Accepted: 10/02/2023] [Indexed: 10/24/2023]
Abstract
More than a decade ago IL-1 blockade was suggested as an add-on therapy for the treatment of cancer. This proposal was based on the overall safety record of anti-IL-1 biologics and the anti-tumor properties of IL-1 blockade in animal models of cancer. Today, a new frontier in IL-1 activity regulation has developed with several orally active NLRP3 inhibitors currently in clinical trials, including cancer. Despite an increasing body of evidence suggesting a role of NLRP3 and IL-1-mediated inflammation driving cancer initiation, immunosuppression, growth, and metastasis, NLRP3 activation in cancer remains controversial. In this review, we discuss the recent advances in the understanding of NLRP3 activation in cancer. Further, we discuss the current opportunities for NLRP3 inhibition in cancer intervention with novel small molecules.
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Affiliation(s)
- Isak W Tengesdal
- Department of Medicine, University of Colorado Denver, Aurora, CO 80045, USA
| | - Charles A Dinarello
- Department of Medicine, University of Colorado Denver, Aurora, CO 80045, USA
| | - Carlo Marchetti
- Department of Medicine, University of Colorado Denver, Aurora, CO 80045, USA.
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Dai Y, Zhou J, Shi C. Inflammasome: structure, biological functions, and therapeutic targets. MedComm (Beijing) 2023; 4:e391. [PMID: 37817895 PMCID: PMC10560975 DOI: 10.1002/mco2.391] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 10/12/2023] Open
Abstract
Inflammasomes are a group of protein complex located in cytoplasm and assemble in response to a wide variety of pathogen-associated molecule patterns, damage-associated molecule patterns, and cellular stress. Generally, the activation of inflammasomes will lead to maturation of proinflammatory cytokines and pyroptotic cell death, both associated with inflammatory cascade amplification. A sensor protein, an adaptor, and a procaspase protein interact through their functional domains and compose one subunit of inflammasome complex. Under physiological conditions, inflammasome functions against pathogen infection and endogenous dangers including mtROS, mtDNA, and so on, while dysregulation of its activation can lead to unwanted results. In recent years, advances have been made to clarify the mechanisms of inflammasome activation, the structural details of them and their functions (negative/positive) in multiple disease models in both animal models and human. The wide range of the stimuli makes the function of inflammasome diverse and complex. Here, we review the structure, biological functions, and therapeutic targets of inflammasomes, while highlight NLRP3, NLRC4, and AIM2 inflammasomes, which are the most well studied. In conclusion, this review focuses on the activation process, biological functions, and structure of the most well-studied inflammasomes, summarizing and predicting approaches for disease treatment and prevention with inflammasome as a target. We aim to provide fresh insight into new solutions to the challenges in this field.
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Affiliation(s)
- Yali Dai
- Institute of Rocket Force MedicineState Key Laboratory of Trauma and Chemical PoisoningArmy Medical UniversityChongqingChina
| | - Jing Zhou
- Institute of Rocket Force MedicineState Key Laboratory of Trauma and Chemical PoisoningArmy Medical UniversityChongqingChina
- Institute of ImmunologyArmy Medical UniversityChongqingChina
| | - Chunmeng Shi
- Institute of Rocket Force MedicineState Key Laboratory of Trauma and Chemical PoisoningArmy Medical UniversityChongqingChina
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10
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Wang J, Hua S, Bao H, Yuan J, Zhao Y, Chen S. Pyroptosis and inflammasomes in cancer and inflammation. MedComm (Beijing) 2023; 4:e374. [PMID: 37752941 PMCID: PMC10518439 DOI: 10.1002/mco2.374] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/20/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023] Open
Abstract
Nonprogrammed cell death (NPCD) and programmed cell death (PCD) are two types of cell death. Cell death is significantly linked to tumor development, medication resistance, cancer recurrence, and metastatic dissemination. Therefore, a comprehensive understanding of cell death is essential for the treatment of cancer. Pyroptosis is a kind of PCD distinct from autophagy and apoptosis in terms of the structure and function of cells. The defining features of pyroptosis include the release of an inflammatory cascade reaction and the expulsion of lysosomes, inflammatory mediators, and other cellular substances from within the cell. Additionally, it displays variations in osmotic pressure both within and outside the cell. Pyroptosis, as evidenced by a growing body of research, is critical for controlling the development of inflammatory diseases and cancer. In this paper, we reviewed the current level of knowledge on the mechanism of pyroptosis and inflammasomes and their connection to cancer and inflammatory diseases. This article presents a theoretical framework for investigating the potential of therapeutic targets in cancer and inflammatory diseases, overcoming medication resistance, establishing nanomedicines associated with pyroptosis, and developing risk prediction models in refractory cancer. Given the link between pyroptosis and the emergence of cancer and inflammatory diseases, pyroptosis-targeted treatments may be a cutting-edge treatment strategy.
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Affiliation(s)
- Jie‐Lin Wang
- Department of Obstetrics and GynecologyGuangzhou Key Laboratory of Targeted Therapy for Gynecologic OncologyGuangdong Provincial Key Laboratory of Major Obstetric DiseasesThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
- Department of Gynecologic Oncology Research OfficeGuangzhou Key Laboratory of Targeted Therapy for Gynecologic OncologyGuangdong Provincial Key Laboratory of Major Obstetric DiseasesThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Sheng‐Ni Hua
- Department of Radiation OncologyZhuhai Peoples HospitalZhuhai Hospital Affiliated with Jinan UniversityZhuhaiChina
| | - Hai‐Juan Bao
- Department of Obstetrics and GynecologyGuangzhou Key Laboratory of Targeted Therapy for Gynecologic OncologyGuangdong Provincial Key Laboratory of Major Obstetric DiseasesThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
- Department of Gynecologic Oncology Research OfficeGuangzhou Key Laboratory of Targeted Therapy for Gynecologic OncologyGuangdong Provincial Key Laboratory of Major Obstetric DiseasesThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Jing Yuan
- Department of Obstetrics and GynecologyGuangzhou Key Laboratory of Targeted Therapy for Gynecologic OncologyGuangdong Provincial Key Laboratory of Major Obstetric DiseasesThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
- Department of Gynecologic Oncology Research OfficeGuangzhou Key Laboratory of Targeted Therapy for Gynecologic OncologyGuangdong Provincial Key Laboratory of Major Obstetric DiseasesThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Yang Zhao
- Department of Obstetrics and GynecologyGuangzhou Key Laboratory of Targeted Therapy for Gynecologic OncologyGuangdong Provincial Key Laboratory of Major Obstetric DiseasesThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
- Department of Gynecologic Oncology Research OfficeGuangzhou Key Laboratory of Targeted Therapy for Gynecologic OncologyGuangdong Provincial Key Laboratory of Major Obstetric DiseasesThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Shuo Chen
- Department of Obstetrics and GynecologyGuangzhou Key Laboratory of Targeted Therapy for Gynecologic OncologyGuangdong Provincial Key Laboratory of Major Obstetric DiseasesThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
- Department of Gynecologic Oncology Research OfficeGuangzhou Key Laboratory of Targeted Therapy for Gynecologic OncologyGuangdong Provincial Key Laboratory of Major Obstetric DiseasesThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
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11
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Okin D, Kagan JC. Inflammasomes as regulators of non-infectious disease. Semin Immunol 2023; 69:101815. [PMID: 37506489 PMCID: PMC10527946 DOI: 10.1016/j.smim.2023.101815] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/13/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
Inflammasomes are cytoplasmic organelles that stimulate inflammation upon cellular detection of infectious or non-infectious stress. While much foundational work has focused on the infection-associated aspects of inflammasome activities, recent studies have highlighted the role of inflammasomes in non-infectious cellular and organismal functions. Herein, we discuss the evolution of inflammasome components and highlight characteristics that permit inflammasome regulation of physiologic processes. We focus on emerging data that highlight the importance of inflammasome proteins in the regulation of reproduction, development, and malignancy. A framework is proposed to contextualize these findings.
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Affiliation(s)
- Daniel Okin
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA
| | - Jonathan C Kagan
- Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.
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12
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Fang Y, Tang Y, Huang B. Pyroptosis: A road to next-generation cancer immunotherapy. Semin Immunol 2023; 68:101782. [PMID: 37302166 DOI: 10.1016/j.smim.2023.101782] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/13/2023] [Accepted: 06/05/2023] [Indexed: 06/13/2023]
Abstract
The goal of cancer immunotherapy is to clear tumor cells by activating antitumor immunity, especially by mobilizing tumor-reactive CD8+T cells. Pyroptosis, programmed lytic cell death mediated by gasdermin (GSDM), results in the release of cellular antigens, damage-associated molecular patterns (DAMPs) and cytokines. Therefore, pyroptotic tumor cell-derived tumor antigens and DAMPs not only reverse immunosuppression of the tumor microenvironment (TME) but also enhance tumor antigen presentation by dendritic cells, leading to robust antitumor immunity. Exploring nanoparticles and other approaches to spatiotemporally control tumor pyroptosis by regulating gasdermin expression and activation is promising for next-generation immunotherapy.
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Affiliation(s)
- Yiliang Fang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China
| | - Yaxing Tang
- Department of Anaesthesiology, the Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, PR China
| | - Bo Huang
- Department of Immunology and National Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College, Beijing 100005, PR China.
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13
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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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14
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Zhu X, Xu Y, Wang J, Xue Z, Qiu T, Chen J. Loss of NLRP3 reduces oxidative stress and polarizes intratumor macrophages to attenuate immune attack on endometrial cancer. Front Immunol 2023; 14:1165602. [PMID: 37077909 PMCID: PMC10106583 DOI: 10.3389/fimmu.2023.1165602] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 03/02/2023] [Indexed: 04/05/2023] Open
Abstract
IntroductionThe interaction between endometrial cancer (EMC) cells and intratumoral macrophages plays a significant role in the development of the disease. PYD domains-containing protein 3 (NLRP3) inflammasome formation triggers caspase-1/IL-1β signaling pathways and produces reactive oxygen species (ROS) in macrophages. However, the role of NLRP3-regulated ROS production in macrophage polarization and the subsequent growth and metastasis of EMC remains unknown.MethodsWe conducted bioinformatic analysis to compare NLRP3 levels in intratumoral macrophages from EMC and normal endometrium. In vitro experiments involved knocking out NLRP3 in macrophages to shift the polarization from an anti-inflammatory M1-like phenotype to a proinflammatory M2-like phenotype and reduce ROS production. The impact of NLRP3 depletion on the growth, invasion, and metastasis of co-cultured EMC cells was assessed. We also evaluated the effect of NLRP3 depletion in macrophages on the growth and metastasis of implanted EMC cells in mice.ResultsOur bioinformatic analysis showed significantly lower NLRP3 levels in intratumoral macrophages from EMC than those from normal endometrium. Knocking out NLRP3 in macrophages shifted their polarization to a proinflammatory M2-like phenotype and significantly reduced ROS production. NLRP3 depletion in M2-polarized macrophages increased the growth, invasion, and metastasis of co-cultured EMC cells. NLRP3 depletion in M1-polarized macrophages reduced phagocytic potential, which resulted in weakened immune defense against EMC. Additionally, NLRP3 depletion in macrophages significantly increased the growth and metastasis of implanted EMC cells in mice, likely due to compromised phagocytosis by macrophages and a reduction in cytotoxic CD8+ T cells.DiscussionOur results suggest that NLRP3 plays a significant role in regulating macrophage polarization, oxidative stress, and immune response against EMC. NLRP3 depletion alters the polarization of intratumoral macrophages, leading to weakened immune defense against EMC cells. The reduction in ROS production by the loss of NLRP3 may have implications for the development of novel treatment strategies for EMC.
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Affiliation(s)
| | | | | | | | - Tian Qiu
- *Correspondence: Tian Qiu, ; Jing Chen, ;
| | - Jing Chen
- *Correspondence: Tian Qiu, ; Jing Chen, ;
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15
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Zhu F, Yu D, Qin X, Qian Y, Ma J, Li W, Liu Q, Wang C, Zhang Y, Li Y, Jiang D, Wang S, Xia P. The neuropeptide CGRP enters the macrophage cytosol to suppress the NLRP3 inflammasome during pulmonary infection. Cell Mol Immunol 2023; 20:264-276. [PMID: 36600053 PMCID: PMC9970963 DOI: 10.1038/s41423-022-00968-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 12/11/2022] [Indexed: 01/06/2023] Open
Abstract
The NLRP3 inflammasome plays an essential role in resistance to bacterial infection. The nervous system secretes multiple neuropeptides affecting the nervous system as well as immune cells. The precise impact of the neuropeptide CGRP on NLRP3 inflammasome activation is still unclear. Here, we show that CGRP negatively regulates the antibacterial process of host cells. CGRP prevents NLRP3 inflammasome activation and reduces mature IL-1β secretion. Following NLRP3 inflammasome stimulation that triggers endosome leakage, CGRP internalized to endosomal compartments is released into the cell cytosol. Cytosolic CGRP binds directly to NLRP3 and dismantles the NLRP3-NEK7 complex, which is crucial for NLRP3 inflammasome activation. CGRP administration exacerbates bacterial infection, while the treatment with a CGRP antagonist has the opposite effect. Our study uncovers a unique role of CGRP in inhibiting inflammasome activation during infections, which might shed new light on antibacterial therapies in the future.
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Affiliation(s)
- Fangrui Zhu
- Department of Immunology, School of Basic Medical Sciences, Peking University, 100191, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, 100191, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, 100191, Beijing, China
| | - Dou Yu
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, Hubei, 430071, China
| | - Xiwen Qin
- Department of Immunology, School of Basic Medical Sciences, Peking University, 100191, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, 100191, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, 100191, Beijing, China
| | - Yan Qian
- Department of Immunology, School of Basic Medical Sciences, Peking University, 100191, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, 100191, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, 100191, Beijing, China
| | - Juan Ma
- Department of Immunology, School of Basic Medical Sciences, Peking University, 100191, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, 100191, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, 100191, Beijing, China
| | - Weitao Li
- Department of Immunology, School of Basic Medical Sciences, Peking University, 100191, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, 100191, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, 100191, Beijing, China
| | - Qiannv Liu
- Department of Immunology, School of Basic Medical Sciences, Peking University, 100191, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, 100191, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, 100191, Beijing, China
| | - Chunlei Wang
- Department of Immunology, School of Basic Medical Sciences, Peking University, 100191, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, 100191, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, 100191, Beijing, China
| | - Yan Zhang
- Department of Immunology, School of Basic Medical Sciences, Peking University, 100191, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University, 100191, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, 100191, Beijing, China
| | - Yi Li
- Department of Anesthesiology, Peking University Third Hospital, 100191, Beijing, China
| | - Dong Jiang
- Department of Sports Medicine, Peking University Third Hospital, 100191, Beijing, China
- Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, 100191, Beijing, China
| | - Shuo Wang
- CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China.
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, Hubei, 430071, China.
| | - Pengyan Xia
- Department of Immunology, School of Basic Medical Sciences, Peking University, 100191, Beijing, China.
- NHC Key Laboratory of Medical Immunology, Peking University, 100191, Beijing, China.
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, 100191, Beijing, China.
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16
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The metabolite alpha-ketoglutarate: a novel target of gasdermin C-dependent pyroptosis. Chin Med J (Engl) 2023:00029330-990000000-00388. [PMID: 36848138 DOI: 10.1097/cm9.0000000000002273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Indexed: 03/01/2023] Open
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17
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The Therapeutic Potential of Pyroptosis in Melanoma. Int J Mol Sci 2023; 24:ijms24021285. [PMID: 36674798 PMCID: PMC9861152 DOI: 10.3390/ijms24021285] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/04/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Pyroptosis is a programmed cell death characterized by the rupture of the plasma membranes and release of cellular content leading to inflammatory reaction. Four cellular mechanisms inducing pyroptosis have been reported thus far, including the (i) caspase 1-mediated canonical, (ii) caspase 4/5/11-mediated non-canonical, (iii) caspase 3/8-mediated and (iv) caspase-independent pathways. Although discovered as a defense mechanism protecting cells from infections of intracellular pathogens, pyroptosis plays roles in tumor initiation, progression and metastasis of tumors, as well as in treatment response to antitumor drugs and, consequently, patient outcome. Pyroptosis induction following antitumor therapies has been reported in several tumor types, including lung, colorectal and gastric cancer, hepatocellular carcinoma and melanoma. This review provides an overview of the cellular pathways of pyroptosis and discusses the therapeutic potential of pyroptosis induction in cancer, particularly in melanoma.
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18
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Wang P, Zhang J. Persistent expression of NLRP3 in spinal microglia promotes development of lumbar disc degeneration. Front Immunol 2022; 13:1064303. [PMID: 36505450 PMCID: PMC9727189 DOI: 10.3389/fimmu.2022.1064303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 11/04/2022] [Indexed: 11/24/2022] Open
Abstract
Introduction Activated microglia play a critical role in the development of lumbar disc degeneration (LDD), which is a severe disease that causes neuropathic pain in affected people. Interleukin 1β (IL-1β) is a proinflammatory cytokine produced and secreted by activated microglia to induce the inflammation and the subsequent degradation of the disease discs. Recent findings suggest that activation of IL-1β in cells usually requires the involvement of NACHT, LRR and PYD domains-containing protein 3 (NLRP3)-induced formation of inflammasome. However, the importance of NLRP3 in spinal microglia in LDD is not known and thus addressed in the current study. Methods NLRP3 expression was examined in the spinal discs. Correlation of NLRP3 levels in microglia with the pain score of the LDD patients or Thompson classification of the degeneration level of the patients was determined. The effects of persistent expression or depletion of NLRP3 on phagocytosis potential and production of proinflammatory cytokines in microglia were tested in vitro, while their effects on the severity of LDD and LDD-associated neuropathic pain were assessed in a mouse model for LDD. Results NLRP3 was exclusively expressed in microglia in the spinal discs. NLRP3 levels in microglia strongly correlated with the pain score of the LDD patients, and modestly correlated with the Thompson classification of the degeneration level of the patients. Persistent NLRP3 expression in microglia increased both their phagocytosis potential and production of proinflammatory cytokines, while NLRP3-depleted microglia decreased both their phagocytosis potential and production of proinflammatory cytokines. In a mouse model for LDD, persistent NLRP3 activation in microglia significantly increased the severity of LDD and LDD-associated neuropathic pain, while specific depletion of NLRP3 in microglia significantly attenuated the severity of LDD and reduced the LDD-associated neuropathic pain. Conclusions Persistent activation of NLRP3 in spinal microglia promotes development of LDD, while suppression of NLRP3 in microglia could be a promising strategy for LDD therapy.
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19
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Peng Y, Gao Y. NLRP3+ macrophages aggravate inflammatory cystitis in diabetes. Front Immunol 2022; 13:1057746. [DOI: 10.3389/fimmu.2022.1057746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022] Open
Abstract
Inflammatory macrophages play a pivotal role in the progression of inflammatory cystitis. Formation of NOD-, LRR- and PYD domains-containing protein 3 (NLRP3) inflammasome triggers the activation of caspase-1/IL-1β signaling cascades to mediate inflammatory response. However, it is not known whether NLRP3 activation in macrophages during cystitis may differ in normal or diabetic setting as well as the importance of it. In this study, we found that NLRP3 levels significantly increased in bladder macrophages in diabetic mice that underwent cystitis. Moreover, bladder macrophages from diabetic mice appeared to have increased their potential of growth, migration and phagocytosis. Furthermore, specific depletion of NLRP3 in macrophages alleviated the severity of cystitis in diabetic mice, but not in non-diabetic mice. Together, our data suggest that NLRP3 depletion in macrophages may be a promising strategy for treating diabetic cystitis.
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20
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Gao W, Wang X, Zhou Y, Wang X, Yu Y. Autophagy, ferroptosis, pyroptosis, and necroptosis in tumor immunotherapy. Signal Transduct Target Ther 2022; 7:196. [PMID: 35725836 PMCID: PMC9208265 DOI: 10.1038/s41392-022-01046-3] [Citation(s) in RCA: 346] [Impact Index Per Article: 173.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 05/23/2022] [Accepted: 05/30/2022] [Indexed: 12/12/2022] Open
Abstract
In recent years, immunotherapy represented by immune checkpoint inhibitors (ICIs) has led to unprecedented breakthroughs in cancer treatment. However, the fact that many tumors respond poorly or even not to ICIs, partly caused by the absence of tumor-infiltrating lymphocytes (TILs), significantly limits the application of ICIs. Converting these immune “cold” tumors into “hot” tumors that may respond to ICIs is an unsolved question in cancer immunotherapy. Since it is a general characteristic of cancers to resist apoptosis, induction of non-apoptotic regulated cell death (RCD) is emerging as a new cancer treatment strategy. Recently, several studies have revealed the interaction between non-apoptotic RCD and antitumor immunity. Specifically, autophagy, ferroptosis, pyroptosis, and necroptosis exhibit synergistic antitumor immune responses while possibly exerting inhibitory effects on antitumor immune responses. Thus, targeted therapies (inducers or inhibitors) against autophagy, ferroptosis, pyroptosis, and necroptosis in combination with immunotherapy may exert potent antitumor activity, even in tumors resistant to ICIs. This review summarizes the multilevel relationship between antitumor immunity and non-apoptotic RCD, including autophagy, ferroptosis, pyroptosis, and necroptosis, and the potential targeting application of non-apoptotic RCD to improve the efficacy of immunotherapy in malignancy.
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Affiliation(s)
- Weitong Gao
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Xueying Wang
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, changsha, 410008, China
| | - Yang Zhou
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Xueqian Wang
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, 150081, China
| | - Yan Yu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081, China.
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21
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Zheng J, Jiang Z, Song Y, Huang S, Du Y, Yang X, Xiao Y, Ma Z, Xu D, Li J. 3,4-Methylenedioxy-β-Nitrostyrene Alleviates Dextran Sulfate Sodium–Induced Mouse Colitis by Inhibiting the NLRP3 Inflammasome. Front Pharmacol 2022; 13:866228. [PMID: 35784693 PMCID: PMC9240698 DOI: 10.3389/fphar.2022.866228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 05/04/2022] [Indexed: 11/30/2022] Open
Abstract
Inflammatory bowel disease (IBD) has been reported to be associated with NLRP3 inflammasome activation. Therefore inhibiting inflammasome activation could be a new approach to treat IBD. Inflammasome inhibitors NLRP3-IN-2, JC124, and 3,4-methylenedioxy-β-nitrostyrene (MNS) were previously reported to exert anti-inflammatory effects in various disease models but not in the dextran sulfate sodium (DSS)–induced colitis model. Here, we showed that MNS was more efficient in inhibiting the secretion of interleukin-1β (IL-1β) by blocking oligomerization of apoptosis-associated speck-like protein (ASC) than NLRP3-IN-2 and JC124. To investigate the protective effects of MNS on enteritis, we administered intragastric MNS to DSS-induced colitis mice. The results demonstrated that MNS attenuated DSS-induced body weight loss, colon length shortening, and pathological damage. In addition, MNS inhibited the infiltration of macrophages and inflammatory cells and reduced IL-1β and IL-12p40 pro-inflammatory cytokines but had no significant effect on tumor necrosis factor α (TNF-α) and IL-6. Furthermore, we also found that the differentiation of IL-17A+interferon-γ (IFN-γ)+CD4+ T cell was decreased in the colon after MNS treatment, which might be mediated by IL-1β, etc. cytokine release. Taken together, MNS alleviated DSS-induced intestinal inflammation by inhibiting NLRP3 inflammasome activation, which may function as an effective therapeutic for IBD.
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Affiliation(s)
- Juanjuan Zheng
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhongxin Jiang
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Yue Song
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Department of Medical Technology, Qiqihar Medical University, Qiqihar, China
| | - Shu Huang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yuzhang Du
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiaobao Yang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yan Xiao
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Zhihui Ma
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Dakang Xu
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- *Correspondence: Dakang Xu, ; Jing Li,
| | - Jing Li
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
- *Correspondence: Dakang Xu, ; Jing Li,
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22
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Abstract
Oxidized phospholipids that result from tissue injury operate as immunomodulatory signals that, depending on the context, lead to proinflammatory or anti-inflammatory responses. In this Perspective, we posit that cells of the innate immune system use the presence of oxidized lipids as a generic indicator of threat to the host. Similarly to how pathogen-associated molecular patterns represent general indicators of microbial encounters, oxidized lipids may be the most common molecular feature of an injured tissue. Therefore, microbial detection in the absence of oxidized lipids may indicate encounters with avirulent microorganisms. By contrast, microbial detection and detection of oxidized lipids would indicate encounters with replicating microorganisms, thereby inducing a heightened inflammatory and defensive response. Here we review recent studies supporting this idea. We focus on the biology of oxidized phosphocholines, which have emerged as context-dependent regulators of immunity. We highlight emerging functions of oxidized phosphocholines in dendritic cells and macrophages that drive unique inflammasome and migratory activities and hypermetabolic states. We describe how these lipids hyperactivate dendritic cells to stimulate antitumour CD8+ T cell immunity and discuss the potential implications of the newly described activities of oxidized phosphocholines in host defence.
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Affiliation(s)
- Dania Zhivaki
- Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Jonathan C Kagan
- Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA.
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Deng H, Wei Z, Qiu S, Ye D, Gu S, Shen Y, Shen Z, Jin Y, Zhou C. Pyroptosis patterns and immune infiltrates characterization in head and neck squamous cell carcinoma. J Clin Lab Anal 2022; 36:e24292. [PMID: 35156730 PMCID: PMC8993614 DOI: 10.1002/jcla.24292] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/16/2022] [Accepted: 01/24/2022] [Indexed: 12/19/2022] Open
Abstract
Background Pyroptosis plays an essential role in tumor immune responses and inflammation related to chemotherapy. Herein, we studied the characteristic patterns of pyroptosis in head and neck squamous cell carcinoma (HNSCC) to determine their prognostic and therapeutic effects. Methods Consensus clustering analysis was performed to classify patients into pyroptosis or gene clusters. A novel pyroptosis score was constructed by principal component analysis. Kaplan–Meier survival curves were used to show the prognostic value. We also assessed the functional enrichment, tumor mutation burden, immune cell infiltration, and the sensitivity to chemotherapy and immunotherapy between high and low pyroptosis score group. Results Two distinct pyroptosis clusters were defined based on the mRNA expression profiles of PRGs, which were related to immune activation in HNSCC. Notably, a pyroptosis score was constructed according to different expression gene signatures, and then, each HNSCC patient was classified into a low or high pyroptosis score group. Patients with low pyroptosis scores had better immunotherapeutic responses and higher sensitivities to chemotherapeutic agents (paclitaxel, docetaxel, and gemcitabine). Kaplan–Meier survival curves showed that the pyroptosis patterns were independent prognostic indicators regardless of the level of tumor mutation burden. Conclusions Pyroptosis plays an essential role in immune infiltration in HNSCC. Quantifying the pyroptosis score of individual patients might suggest prognostic, immunotherapeutic, and chemotherapeutic strategies for HNSCC.
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Affiliation(s)
- Hongxia Deng
- Department of Otorhinolaryngology Head and Neck Surgery Ningbo Medical Center Lihuili Hospital Ningbo China
- Department of Otorhinolaryngology Head and Neck Surgery Lihuili Hospital Affiliated to Ningbo University Ningbo China
| | - Zhengyu Wei
- Department of Otorhinolaryngology Head and Neck Surgery Lihuili Hospital Affiliated to Ningbo University Ningbo China
| | - Shijie Qiu
- Department of Otorhinolaryngology Head and Neck Surgery Ningbo Medical Center Lihuili Hospital Ningbo China
- Department of Otorhinolaryngology Head and Neck Surgery Lihuili Hospital Affiliated to Ningbo University Ningbo China
| | - Dong Ye
- Department of Otorhinolaryngology Head and Neck Surgery Ningbo Medical Center Lihuili Hospital Ningbo China
- Department of Otorhinolaryngology Head and Neck Surgery Lihuili Hospital Affiliated to Ningbo University Ningbo China
| | - Shanshan Gu
- Department of Otorhinolaryngology Head and Neck Surgery Ningbo Medical Center Lihuili Hospital Ningbo China
- Department of Otorhinolaryngology Head and Neck Surgery Lihuili Hospital Affiliated to Ningbo University Ningbo China
| | - Yi Shen
- Department of Otorhinolaryngology Head and Neck Surgery Ningbo Medical Center Lihuili Hospital Ningbo China
- Department of Otorhinolaryngology Head and Neck Surgery Lihuili Hospital Affiliated to Ningbo University Ningbo China
| | - Zhisen Shen
- Department of Otorhinolaryngology Head and Neck Surgery Ningbo Medical Center Lihuili Hospital Ningbo China
- Department of Otorhinolaryngology Head and Neck Surgery Lihuili Hospital Affiliated to Ningbo University Ningbo China
| | - Yangli Jin
- Department of Ultrasonography Ningbo Yinzhou Second Hospital Ningbo China
| | - Chongchang Zhou
- Department of Otorhinolaryngology Head and Neck Surgery Ningbo Medical Center Lihuili Hospital Ningbo China
- Department of Otorhinolaryngology Head and Neck Surgery Lihuili Hospital Affiliated to Ningbo University Ningbo China
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Zhang S, Chopin M, Nutt SL. Type 1 conventional dendritic cells: ontogeny, function, and emerging roles in cancer immunotherapy. Trends Immunol 2021; 42:1113-1127. [PMID: 34728143 DOI: 10.1016/j.it.2021.10.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 12/12/2022]
Abstract
Dendritic cells (DCs) are key immune sentinels that orchestrate protective immune responses against pathogens or cancers. DCs have evolved into multiple phenotypically, anatomically, and functionally distinct cell types. One of these DC types, Type 1 conventional DCs (cDC1s), are uniquely equipped to promote cytotoxic CD8+ T cell differentiation and, therefore, represent a promising target for harnessing antitumor immunity. Indeed, recent studies have highlighted the importance of cDC1s in tumor immunotherapy using immune checkpoint inhibitors. Here, we review the progress in defining the key developmental and functional attributes of cDC1s and the approaches to optimizing the potency of cDC1s for anticancer immunity.
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Affiliation(s)
- Shengbo Zhang
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Michaël Chopin
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia.
| | - Stephen L Nutt
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia.
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25
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Fu J, Wang Y. Identification of a Novel Pyroptosis-Related Gene Signature for Predicting Prognosis in Bladder Cancer. Cancer Invest 2021; 40:134-150. [PMID: 34644219 DOI: 10.1080/07357907.2021.1991944] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bladder cancer (BC) has an unpredictable prognosis. Pyroptosis is a novel form of programmed cell death. However, whether the pyroptosis-related genes have a prognostic value remains unknown. In this study, we downloaded the mRNA expression and clinical data of BC patients and used the LASSO Cox analysis was employed to build a signature. High-risk patients had a significantly lower overall survival (OS) (p < .0001). Single-sample gene set enrichment analysis (ssGSEA) indicated that the tumor immune microenvironment was different between the two risk groups. In conclusion, a pyroptosis-related signature can be used for OS prediction of patients with BCs.
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Affiliation(s)
- Jianhan Fu
- Department of Urology, Second Xiangya Hospital, Changsha, China
| | - Yinhuai Wang
- School of Medicine, Central South University Xiangya, Changsha, China
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26
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Overcoming Immunotherapy Resistance by Targeting the Tumor-Intrinsic NLRP3-HSP70 Signaling Axis. Cancers (Basel) 2021; 13:cancers13194753. [PMID: 34638239 PMCID: PMC8507548 DOI: 10.3390/cancers13194753] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 01/09/2023] Open
Abstract
Simple Summary The tumor-intrinsic NLRP3 inflammasome is a newly recognized player in the regulation of tumor-directed immune responses and promises to provide fresh insight into how tumors respond to immunotherapy. This brief review discusses recent data describing how activation of the tumor-intrinsic NLRP3 inflammasome contributes to immune evasion and what this pathway may provide to the field of immuno-oncology both in terms of pharmacologic targets capable of boosting responses to checkpoint inhibitor therapies and predictive biomarkers indicating which tumors may be most susceptible to these new therapeutic strategies. Abstract The tumor-intrinsic NOD-like receptor family, pyrin-domain-containing-3 (NLRP3) inflammasome, plays an important role in regulating immunosuppressive myeloid cell populations in the tumor microenvironment (TME). While prior studies have described the activation of this inflammasome in driving pro-tumorigenic mechanisms, emerging data is now revealing the tumor NLRP3 inflammasome and the downstream release of heat shock protein-70 (HSP70) to regulate anti-tumor immunity and contribute to the development of adaptive resistance to anti-PD-1 immunotherapy. Genetic alterations that influence the activity of the NLRP3 signaling axis are likely to impact T cell-mediated tumor cell killing and may indicate which tumors rely on this pathway for immune escape. These studies suggest that the NLRP3 inflammasome and its secreted product, HSP70, represent promising pharmacologic targets for manipulating innate immune cell populations in the TME while enhancing responses to anti-PD-1 immunotherapy. Additional studies are needed to better understand tumor-specific regulatory mechanisms of NLRP3 to enable the development of tumor-selective pharmacologic strategies capable of augmenting responses to checkpoint inhibitor immunotherapy while minimizing unwanted off-target effects. The execution of upcoming clinical trials investigating this strategy to overcome anti-PD-1 resistance promises to provide novel insight into the role of this pathway in immuno-oncology.
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27
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Ferrari D, Casciano F, Secchiero P, Reali E. Purinergic Signaling and Inflammasome Activation in Psoriasis Pathogenesis. Int J Mol Sci 2021; 22:ijms22179449. [PMID: 34502368 PMCID: PMC8430580 DOI: 10.3390/ijms22179449] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/24/2021] [Accepted: 08/25/2021] [Indexed: 12/13/2022] Open
Abstract
Psoriasis is a chronic inflammatory disease of the skin associated with systemic and joint manifestations and accompanied by comorbidities, such as metabolic syndrome and increased risk of cardiovascular disease. Psoriasis has a strong genetic basis, but exacerbation requires additional signals that are still largely unknown. The clinical manifestations involve the interplay between dendritic and T cells in the dermis to generate a self-sustaining inflammatory loop around the TNFα/IL-23/IL-17 axis that forms the psoriatic plaque. In addition, in recent years, a critical role of keratinocytes in establishing the interplay that leads to psoriatic plaques’ formation has re-emerged. In this review, we analyze the most recent evidence of the role of keratinocytes and danger associates molecular patterns, such as extracellular ATP in the generation of psoriatic skin lesions. Particular attention will be given to purinergic signaling in inflammasome activation and in the initiation of psoriasis. In this phase, keratinocytes’ inflammasome may trigger early inflammatory pathways involving IL-1β production, to elicit the subsequent cascade of events that leads to dendritic and T cell activation. Since psoriasis is likely triggered by skin-damaging events and trauma, we can envisage that intracellular ATP, released by damaged cells, may play a role in triggering the inflammatory response underlying the pathogenesis of the disease by activating the inflammasome. Therefore, purinergic signaling in the skin could represent a new and early step of psoriasis; thus, opening the possibility to target single molecular actors of the purinome to develop new psoriasis treatments.
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Affiliation(s)
- Davide Ferrari
- Department of Life Science and Biotechnology, Section of Microbiology and Applied Pathology, University of Ferrara, 44121 Ferrara, Italy;
| | - Fabio Casciano
- Department of Translational Medicine and LTTA Centre, University of Ferrara, 44121 Ferrara, Italy; (F.C.); (P.S.)
- Interdepartmental Research Center for the Study of Multiple Sclerosis and Inflammatory and Degenerative Diseases of the Nervous System, University of Ferrara, 44121 Ferrara, Italy
| | - Paola Secchiero
- Department of Translational Medicine and LTTA Centre, University of Ferrara, 44121 Ferrara, Italy; (F.C.); (P.S.)
| | - Eva Reali
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milan, Italy
- Correspondence:
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28
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Jiang L, Luo S, Qiu T, Li Q, Jiang C, Sun X, Yang G, Zhang C, Liu X, Jiang L. Bidirectional role of reactive oxygen species during inflammasome activation in acrolein-induced human EAhy926 cells pyroptosis. Toxicol Mech Methods 2021; 31:680-689. [PMID: 34238121 DOI: 10.1080/15376516.2021.1953204] [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] [Indexed: 10/24/2022]
Abstract
Acrolein, a known toxin in tobacco smoke, has been demonstrated to be associated with inflammatory cardiovascular diseases, such as atherosclerosis. However, the definite mechanism of acrolein-induced inflammation remains unclear. Here, we report that acrolein induces reactive oxygen species (ROS) production in EAhy926 cells. Additionally, acrolein induces EAhy926 cells' inflammatory response and pyroptosis by activating NOD-like receptor protein 3 (NLRP3) inflammasome. Also, acrolein-induced cytotoxicity could be attenuated by N-acetyl-L-cysteine (NAC). Furthermore, acrolein upregulates the level of autophagy which can be reversed by NAC. Notably, the present study also indicates that autophagy inhibited by inhibitor 3-methyladenine (3MA) and siAtg7 exacerbate acrolein-induced NLRP3 inflammasome activation and pyroptosis. In summary, acrolein induced cytotoxicity by ROS-mediated NLRP3 inflammasome activation, and ROS upregulates the level of autophagy to inhibit the NLRP3 inflammasome excessive activation, indicating the bidirectional role of ROS in acrolein-induced cellular inflammation. Our results may provide novel mechanistic insights into acrolein-induced cardiovascular toxicity.
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Affiliation(s)
- Liping Jiang
- Preventive Medicine Laboratory, College of Public Health, Dalian Medical University, Dalian, Liaoning, China
| | - Songsong Luo
- Department of Internal Medicine, The Affiliated Zhong Shan Hospital of Dalian University, Dalian, Liaoning, China
| | - Tianming Qiu
- Department of Occupational and Environmental Health, College of Public Health, Dalian Medical University, Dalian, Liaoning, China
| | | | - Chunteng Jiang
- Department of Internal Medicine, The Affiliated Zhong Shan Hospital of Dalian University, Dalian, Liaoning, China
| | - Xiance Sun
- Department of Occupational and Environmental Health, College of Public Health, Dalian Medical University, Dalian, Liaoning, China
| | - Guang Yang
- Department of Nutrition and Food Safety, College of Public Health, Dalian Medical University, Dalian, Liaoning, China
| | - Cong Zhang
- Department of Nutrition and Food Safety, College of Public Health, Dalian Medical University, Dalian, Liaoning, China
| | - Xiaofang Liu
- Department of Nutrition and Food Safety, College of Public Health, Dalian Medical University, Dalian, Liaoning, China
| | - Lijie Jiang
- Department of Internal Medicine, The Affiliated Zhong Shan Hospital of Dalian University, Dalian, Liaoning, China
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