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Duan WL, Gu LH, Guo A, Wang XJ, Ding YY, Zhang P, Zhang BG, Li Q, Yang LX. Molecular mechanisms of programmed cell death and potential targeted pharmacotherapy in ischemic stroke (Review). Int J Mol Med 2025; 56:103. [PMID: 40341937 PMCID: PMC12081036 DOI: 10.3892/ijmm.2025.5544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2025] [Accepted: 04/15/2025] [Indexed: 05/11/2025] Open
Abstract
Stroke poses a threat to the elderly, being the second leading cause of death and the third leading cause of disability worldwide. Ischemic stroke (IS), resulting from arterial occlusion, accounts for ~85% of all strokes. The pathophysiological processes involved in IS are intricate and complex. Currently, tissue plasminogen activator (tPA) is the only Food and Drug Administration‑approved drug for the treatment of IS. However, due to its limited administration window and the risk of symptomatic hemorrhage, tPA is applicable to only ~10% of patients with stroke. Additionally, the reperfusion process associated with thrombolytic therapy can further exacerbate damage to brain tissue. Therefore, a thorough understanding of the molecular mechanisms underlying IS‑induced injury and the identification of potential protective agents is critical for effective IS treatment. Over the past few decades, advances have been made in exploring potential protective drugs for IS. The present review summarizes the specific mechanisms of various forms of programmed cell death (PCD) induced by IS and highlights potential protective drugs targeting different PCD pathways investigated over the last decade. The present review provides a theoretical foundation for basic research and insights for the development of pharmacotherapy for IS.
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Affiliation(s)
- Wan-Li Duan
- Medical Research Center, Shaoxing People's Hospital, Shaoxing, Zhejiang 312000, P.R. China
- Department of Diagnostic Pathology, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, Shandong 261041, P.R. China
| | - Li-Hui Gu
- Department of Diagnostic Pathology, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, Shandong 261041, P.R. China
| | - Ai Guo
- Department of Diagnostic Pathology, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, Shandong 261041, P.R. China
| | - Xue-Jie Wang
- Department of Diagnostic Pathology, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, Shandong 261041, P.R. China
- Department of Pathology, Shaoxing People's Hospital, Shaoxing, Zhejiang 312000, P.R. China
| | - Yi-Yue Ding
- Department of Diagnostic Pathology, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, Shandong 261041, P.R. China
| | - Peng Zhang
- Department of Cardiology, Shaoxing People's Hospital, Shaoxing, Zhejiang 312000, P.R. China
| | - Bao-Gang Zhang
- Department of Diagnostic Pathology, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, Shandong 261041, P.R. China
- Department of Pathology, Shaoxing People's Hospital, Shaoxing, Zhejiang 312000, P.R. China
| | - Qin Li
- Rehabilitation Medicine and Health College, Hunan University of Medicine, Huaihua, Hunan 418000, P.R. China
| | - Li-Xia Yang
- Medical Research Center, Shaoxing People's Hospital, Shaoxing, Zhejiang 312000, P.R. China
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Li Z, Cheng W, Gao K, Liang S, Ke L, Wang M, Fan J, Li D, Zhang P, Xu Z, Li N. Pyroptosis: A spoiler of peaceful coexistence between cells in degenerative bone and joint diseases. J Adv Res 2025; 71:227-262. [PMID: 38876191 DOI: 10.1016/j.jare.2024.06.010] [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: 02/17/2024] [Revised: 05/23/2024] [Accepted: 06/07/2024] [Indexed: 06/16/2024] Open
Abstract
BACKGROUND As people age, degenerative bone and joint diseases (DBJDs) become more prevalent. When middle-aged and elderly people are diagnosed with one or more disorders such as osteoporosis (OP), osteoarthritis (OA), and intervertebral disc degeneration (IVDD), it often signals the onset of prolonged pain and reduced functionality. Chronic inflammation has been identified as the underlying cause of various degenerative diseases, including DBJDs. Recently, excessive activation of pyroptosis, a form of programed cell death (PCD) mediated by inflammasomes, has emerged as a primary driver of harmful chronic inflammation. Consequently, pyroptosis has become a potential target for preventing and treating DBJDs. AIM OF REVIEW This review explored the physiological and pathological roles of the pyroptosis pathway in bone and joint development and its relation to DBJDs. Meanwhile, it elaborated the molecular mechanisms of pyroptosis within individual cell types in the bone marrow and joints, as well as the interplay among different cell types in the context of DBJDs. Furthermore, this review presented the latest compelling evidence supporting the idea of regulating the pyroptosis pathway for DBJDs treatment, and discussed the potential, limitations, and challenges of various therapeutic strategies involving pyroptosis regulation. KEY SCIENTIFIC CONCEPTS OF REVIEW In summary, an interesting identity for the unregulated pyroptosis pathway in the context of DBJDs was proposed in this review, which was undertaken as a spoiler of peaceful coexistence between cells in a degenerative environment. Over the extended course of DBJDs, pyroptosis pathway perpetuated its activity through crosstalk among pyroptosis cascades in different cell types, thus exacerbating the inflammatory environment throughout the entire bone marrow and joint degeneration environment. Correspondingly, pyroptosis regulation therapy emerged as a promising option for clinical treatment of DBJDs.
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Affiliation(s)
- Zhichao Li
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Wenxiang Cheng
- Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Kuanhui Gao
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Songlin Liang
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Liqing Ke
- Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Mengjie Wang
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Jilin Fan
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Dandan Li
- College of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang 050011, China
| | - Peng Zhang
- Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; Faculty of Biomedical Engineering, Shenzhen University of Advanced Technology, Shenzhen 518000, China; Key Laboratory of Biomedical Imaging Science and System, Chinese Academy of Sciences, Shenzhen, 518000 China; Shandong Zhongke Advanced Technology Co., Ltd., Jinan, 250300 China.
| | - Zhanwang Xu
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China.
| | - Nianhu Li
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China.
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3
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Huang Z, Jiang Q, Zhang Q, Lu N, Rui X, Chen R, Wang Y, Wang Y, Xu X, Huang Z. Neoadjuvant Chemotherapy With Cisplatin Up-Regulates GSDMD to Enhance Oral Squamous Cell Carcinoma Metastasis Through MMP14-Mediated EMT Activation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2025:e2501149. [PMID: 40178046 DOI: 10.1002/advs.202501149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2025] [Revised: 03/04/2025] [Indexed: 04/05/2025]
Abstract
Neoadjuvant chemotherapy has been widely used for the treatment of solid tumors. However, clinical observations have shown that patients with oral squamous cell carcinoma (OSCC) who are receiving neoadjuvant chemotherapy with cisplatin still face issues such as a poor lymph node response and even lymph node progression, but the underlying mechanisms remain unidentified. In this work, it is found that low-dose cisplatin promoted oral squamous cell carcinoma migration, invasion and lymph node metastasis, and gasdermin D (GSDMD) is identified as a potential regulator. GSDMD interacted with MMP14, promoting its expression and epithelial‒mesenchymal transition (EMT) activation without activating pyroptosis. Moreover, pH-responsive nanoparticles (NPs) for the systemic delivery of a GSDMD siRNA (siGSDMD) is developed and showed that this NP-delivered siGSDMD can effectively inhibit OSCC tumor growth and metastasis via the efficient silencing of GSDMD expression in vivo. This findings indicate that GSDMD can be a biomarker to predict the prognosis of OSCC patients receiving neoadjuvant chemotherapy and that NP-mediated GSDMD silencing can be a promising strategy for the treatment of patients with advanced OSCC receiving neoadjuvant chemotherapy with cisplatin.
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Affiliation(s)
- Zixian Huang
- Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Qiming Jiang
- Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Qianyu Zhang
- Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Nan Lu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-Sen Memorial Hospital, Foshan, 528200, China
| | - Xi Rui
- Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, China
- Hospital of stomatology, the First Affiliated Hospital of Jinan University, School of Stomatology, Jinan University, Guangzhou, 510632, China
| | - Rui Chen
- Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Yan Wang
- Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Yuepeng Wang
- Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Xiaoding Xu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-Sen Memorial Hospital, Foshan, 528200, China
| | - Zhiquan Huang
- Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, China
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Albakova Z. Inflammasomes in lymphocytes as therapeutic targets. Transl Oncol 2025; 54:102342. [PMID: 40054124 PMCID: PMC11928805 DOI: 10.1016/j.tranon.2025.102342] [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: 10/28/2024] [Revised: 01/11/2025] [Accepted: 02/27/2025] [Indexed: 03/18/2025] Open
Abstract
Inflammasomes are cytoplasmic macromolecular complexes playing an important role in sensing exogenous and endogenous stimuli. Inflammasome activation leads to IL-1β and IL-18 secretion and pyroptosis. The concept of non-self recognition triggering inflammasome activation has been well-established for myeloid cells. However, increasing evidence suggests the presence of functional inflammasome or inflammasome-related components in lymphocytes. Dysregulated expression of inflammasome contributes to the development of many diseases, including cardiovascular, infectious, neurodegenerative diseases and cancer. Multiple clinical trials are being conducted to assess drugs targeting various inflammasome components. This review discusses current knowledge on inflammasome activation in T, B and NK cells and explores their potential as therapeutic targets. Further understanding inflammasome and pyroptotic pathways in lymphocytes may have implications in the development of novel immunotherapeutic strategies.
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Affiliation(s)
- Zarema Albakova
- Department of Biology, Lomonosov Moscow State University, Moscow, Russia.
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5
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Gao H, Xie T, Li Y, Xu Z, Song Z, Yu H, Zhou H, Li W, Yun C, Guan B, Luan S, Yin L. Role of gasdermins in chronic kidney disease. Front Immunol 2025; 16:1557707. [PMID: 40236694 PMCID: PMC11996640 DOI: 10.3389/fimmu.2025.1557707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2025] [Accepted: 03/14/2025] [Indexed: 04/17/2025] Open
Abstract
Gasdermins (GSDMs), functioning as membrane perforating proteins, can be activated by canonical inflammasomes, noncanonical inflammasomes, as well as non-inflammasomes, leading to cell pyroptosis and the subsequent release of inflammatory mediators. Increasing evidence has implicated that GSDMs are associated with chronic kidney disease (CKD), including diabetes nephropathy, lupus nephritis, obstructive nephropathy, and crystalline nephropathy. This review centers on the role of GSDMs-mediated pyroptosis in the pathogenesis of CKD, providing novel ideas for enhancing the prognosis and therapeutic strategies of CKD.
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Affiliation(s)
- Hanchao Gao
- Department of Nephrology, Shenzhen Longhua District Central Hospital, Shenzhen Longhua District Key Laboratory for Diagnosis and Treatment of Chronic Kidney Disease, Shenzhen, Guangdong, China
| | - Ting Xie
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Yunyi Li
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Zigan Xu
- Department of Nephrology, Shenzhen Longhua District Central Hospital, Shenzhen Longhua District Key Laboratory for Diagnosis and Treatment of Chronic Kidney Disease, Shenzhen, Guangdong, China
| | - Zhuoheng Song
- Department of Nephrology, Shenzhen Longhua District Central Hospital, Shenzhen Longhua District Key Laboratory for Diagnosis and Treatment of Chronic Kidney Disease, Shenzhen, Guangdong, China
| | - Huixia Yu
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Hongming Zhou
- Department of Nephrology, Shenzhen Longhua District Central Hospital, Shenzhen Longhua District Key Laboratory for Diagnosis and Treatment of Chronic Kidney Disease, Shenzhen, Guangdong, China
| | - Weilong Li
- Department of Nephrology, Shenzhen Longhua District Central Hospital, Shenzhen Longhua District Key Laboratory for Diagnosis and Treatment of Chronic Kidney Disease, Shenzhen, Guangdong, China
| | - Chen Yun
- Charité-Universitätsmedizin Berlin, Campus Mitte, Berlin, Germany
| | - Baozhang Guan
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Shaodong Luan
- Department of Nephrology, Shenzhen Longhua District Central Hospital, Shenzhen Longhua District Key Laboratory for Diagnosis and Treatment of Chronic Kidney Disease, Shenzhen, Guangdong, China
| | - Lianghong Yin
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
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6
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Henter JI. Hemophagocytic Lymphohistiocytosis. N Engl J Med 2025; 392:584-598. [PMID: 39908433 DOI: 10.1056/nejmra2314005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2025]
Affiliation(s)
- Jan-Inge Henter
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institute, Stockholm
- Astrid Lindgrens Children's Hospital, Karolinska University Hospital, Stockholm
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7
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Fish A, Forster J, Malik V, Kulkarni A. Shear-Stress Initiates Signal Two of NLRP3 Inflammasome Activation in LPS-Primed Macrophages through Piezo1. ACS APPLIED MATERIALS & INTERFACES 2025; 17:7363-7376. [PMID: 39836089 DOI: 10.1021/acsami.4c18845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2025]
Abstract
The innate immune system is tightly regulated by a complex network of chemical signals triggered by pathogens, cellular damage, and environmental stimuli. While it is well-established that changes in the extracellular environment can significantly influence the immune response to pathogens and damage-associated molecules, there remains a limited understanding of how changes in environmental stimuli specifically impact the activation of the NLRP3 inflammasome, a key component of innate immunity. Here, we demonstrated how shear stress can act as Signal 2 in the NLRP3 inflammasome activation pathway by treating LPS-primed immortalized bone marrow-derived macrophages (iBMDMs) with several physiologically relevant magnitudes of shear stress to induce inflammasome activation. We demonstrated that magnitudes of shear stress within 1.0 to 50 dyn/cm2 were able to induce ASC speck formation, while 50 dyn/cm2 was sufficient to induce significant calcium signaling, gasdermin-D cleavage, caspase-1 activity, and IL-1β secretion, all hallmarks of inflammasome activation. Utilizing NLRP3 and caspase-1 knockout iBMDMs, we demonstrated that the NLRP3 inflammasome was primarily activated as a result of shear stress exposure. Quantitative polymerase chain reaction (qPCR), ELISA, and a small molecule inhibitor study aided us in demonstrating that expression of Piezo1, NLRP3, gasdermin-D, IL-1β, and CCL2 secretion were all upregulated in iBMDMs treated with shear stress. This study provides a foundation for further understanding the interconnected pathogenesis of chronic inflammatory diseases and the ability of shear stress to play a role in their progression.
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Affiliation(s)
- Adam Fish
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - James Forster
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Vaishali Malik
- Department of Biomedical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
| | - Ashish Kulkarni
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
- Department of Biomedical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003, United States
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, United States
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8
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Szabo A, Akkouh I, Osete JR, de Assis DR, Kondratskaya E, Hughes T, Ueland T, Andreassen OA, Djurovic S. NLRP3 inflammasome mediates astroglial dysregulation of innate and adaptive immune responses in schizophrenia. Brain Behav Immun 2025; 124:144-156. [PMID: 39617069 DOI: 10.1016/j.bbi.2024.11.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 11/19/2024] [Accepted: 11/27/2024] [Indexed: 12/07/2024] Open
Abstract
Mounting evidence indicates the involvement of neuroinflammation in the development of schizophrenia (SCZ), but the potential role of astroglia in this phenomenon remains poorly understood. We assessed the molecular and functional consequences of inflammasome activation using induced pluripotent stem cell (iPSC)-derived astrocytes generated from SCZ patients and healthy controls (CTRL). Screening protein levels in astrocytes at baseline identified lower expression of the NLRP3-ASC complex in SCZ, but increased Caspase-1 activity upon specific NLRP3 stimulation compared to CTRL. Using transcriptional profiling, we found corresponding downregulations of NLRP3 and ASC/PYCARD in both iPSC-derived astrocytes, and in a large (n = 429) brain postmortem case-control sample. Functional analyses following NLRP3 activation revealed an inflammatory phenotype characterized by elevated production of IL-1β/IL-18 and skewed priming of helper T lymphocytes (Th1/Th17) by SCZ astrocytes. This phenotype was rescued by specific inhibition of NLRP3 activation, demonstrating its dependence on the NLRP3 inflammasome. Taken together, SCZ iPSC-astrocytes display unique, NLRP3-dependent inflammatory characteristics that are manifested via various cellular functions, as well as via dysregulated innate and adaptive immune responses.
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Affiliation(s)
- Attila Szabo
- Centre for Precision Psychiatry, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway; Department of Medical Genetics, Oslo University Hospital, Oslo, Norway; K.G. Jebsen Centre for Neurodevelopmental Disorders, University of Oslo, Oslo, Norway.
| | - Ibrahim Akkouh
- Centre for Precision Psychiatry, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway; Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
| | - Jordi Requena Osete
- Centre for Precision Psychiatry, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway; Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
| | - Denis Reis de Assis
- Centre for Precision Psychiatry, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway; Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
| | - Elena Kondratskaya
- Centre for Precision Psychiatry, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway; Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
| | - Timothy Hughes
- Centre for Precision Psychiatry, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway; Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
| | - Thor Ueland
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway; Faculty of Medicine, University of Oslo, Norway; K.G. Jebsen Thrombosis Research and Expertise Centre, University of Tromsø, Tromsø, Norway
| | - Ole A Andreassen
- Centre for Precision Psychiatry, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Srdjan Djurovic
- Department of Medical Genetics, Oslo University Hospital, Oslo, Norway; K.G. Jebsen Centre for Neurodevelopmental Disorders, University of Oslo, Oslo, Norway; Department of Clinical Science, University of Bergen, Bergen, Norway
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9
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Munshi S, Alarbi AM, Zheng H, Kuplicki R, Burrows K, Figueroa-Hall LK, Victor TA, Aupperle RL, Khalsa SS, Paulus MP, Teague TK, Savitz J. Increased expression of ER stress, inflammasome activation, and mitochondrial biogenesis-related genes in peripheral blood mononuclear cells in major depressive disorder. Mol Psychiatry 2025; 30:574-586. [PMID: 39174649 PMCID: PMC12054637 DOI: 10.1038/s41380-024-02695-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 08/09/2024] [Indexed: 08/24/2024]
Abstract
A subset of major depressive disorder (MDD) is characterized by immune system dysfunction, but the intracellular origin of these immune changes remains unclear. Here we tested the hypothesis that abnormalities in endoplasmic reticulum (ER) stress, inflammasome activity and mitochondrial biogenesis contribute to the development of systemic inflammation in MDD. RT-qPCR was used to measure mRNA expression of key organellar genes from peripheral blood mononuclear cells (PBMCs) isolated from 186 MDD and 67 healthy control (HC) subjects. The comparative CT (2-ΔΔCT) method was applied to quantify mRNA expression using GAPDH as the reference gene. After controlling for age, sex, BMI, and medication status using linear regression models, expression of the inflammasome (NLRC4 and NLRP3) and the ER stress (XBP1u, XBP1s, and ATF4) genes was found to be significantly increased in the MDD versus the HC group. Sensitivity analyses excluding covariates yielded similar results. After excluding outliers, expression of the inflammasome genes was no longer statistically significant but expression of the ER stress genes (XBP1u, XBP1s, and ATF4) remained significant and the mitochondrial biogenesis gene, MFN2, was significantly increased in the MDD group. NLRC4 and MFN2 were positively correlated with serum C-reactive protein concentrations, while ASC trended significant. The altered expression of inflammasome activation, ER stress, and mitochondrial biogenesis pathway components suggest that dysfunction of these organelles may play a role in the pathogenesis of MDD.
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Affiliation(s)
- Soumyabrata Munshi
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74136, USA.
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Oklahoma Health Sciences Center, 1110 N. Stonewall Avenue, Oklahoma City, OK, 73117, USA.
| | - Ahlam M Alarbi
- Integrative Immunology Center, Department of Surgery and Department of Psychiatry, University of Oklahoma - School of Community Medicine, 4502 E. 41st St., Tulsa, OK, 74135, USA
| | - Haixia Zheng
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74136, USA
- Oxley College of Health and Natural Sciences, The University of Tulsa, Tulsa, OK, 74199, USA
| | - Rayus Kuplicki
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74136, USA
| | - Kaiping Burrows
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74136, USA
| | - Leandra K Figueroa-Hall
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74136, USA
- Oxley College of Health and Natural Sciences, The University of Tulsa, Tulsa, OK, 74199, USA
| | - Teresa A Victor
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74136, USA
| | - Robin L Aupperle
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74136, USA
- Oxley College of Health and Natural Sciences, The University of Tulsa, Tulsa, OK, 74199, USA
| | - Sahib S Khalsa
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74136, USA
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California at Los Angeles, 300 UCLA Medical Plaza, Los Angeles, CA, 90095, USA
| | - Martin P Paulus
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74136, USA
- Oxley College of Health and Natural Sciences, The University of Tulsa, Tulsa, OK, 74199, USA
| | - T Kent Teague
- Integrative Immunology Center, Department of Surgery and Department of Psychiatry, University of Oklahoma - School of Community Medicine, 4502 E. 41st St., Tulsa, OK, 74135, USA
- Department of Biochemistry and Microbiology, Center for Health Sciences, Oklahoma State University, 1111 W. 17th St., Tulsa, OK, 74107, USA
| | - Jonathan Savitz
- Laureate Institute for Brain Research, 6655 S. Yale Ave., Tulsa, OK, 74136, USA
- Oxley College of Health and Natural Sciences, The University of Tulsa, Tulsa, OK, 74199, USA
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10
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Lian S, Luo Y, Chen Z, Wei X, Liu J, Zhu G, Xia P. Deficiency of the flagellin subunit FliC exacerbates the pathogenicity of extraintestinal pathogenic Escherichia coli in BALB/c mice by inducing a more intense inflammation. Int J Biol Macromol 2025; 289:138761. [PMID: 39694390 DOI: 10.1016/j.ijbiomac.2024.138761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 11/17/2024] [Accepted: 12/11/2024] [Indexed: 12/20/2024]
Abstract
Extraintestinal pathogenic Escherichia coli (ExPEC) can cause systemic infections in livestock and poultry. Flagellin, a classical virulence factor, acts as a promoter of cell adhesion and invasion, as well as an inducer of inflammatory responses during intestinal pathogen infection. Further understanding is needed regarding the interaction between flagellin and host within the extra-intestinal ecological niche to facilitate a deeper comprehension of ExPEC infection mechanisms. In this study, we constructed a FliC mutant strain (ΔfliC) of ExPEC XM which exhibited reduced motility and enhanced biofilm formation in vitro assays. The ΔfliC strain also demonstrated diminished adherence and invasion capabilities on hBMEC cells while inducing decreased levels of apoptosis. In vivo experiments with BALB/c mice revealed that the ΔfliC strain displayed enhanced pathogenicity compared to wild-type strains, resulting in an earlier time to death, higher tissue load, severe bacteremia, and more intense inflammatory response observed in serum and tissues. These results suggest that the flagellar protein FliC plays different roles for extraintestinal pathogens compared to enteric pathogens. This study further elucidates the functional role of FliC in ExPEC infection while providing a research basis for exploring pathogenic mechanisms and prevention/control strategies for systemic infectious bacterial diseases.
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Affiliation(s)
- Siqi Lian
- College of Veterinary Medicine (Institute of Comparative Medicine), Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China; Joint International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of China, Yangzhou University, Yangzhou 225009, China
| | - Yi Luo
- College of Veterinary Medicine (Institute of Comparative Medicine), Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China; Joint International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of China, Yangzhou University, Yangzhou 225009, China
| | - Ziyue Chen
- College of Veterinary Medicine (Institute of Comparative Medicine), Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China; Joint International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of China, Yangzhou University, Yangzhou 225009, China
| | - Xing Wei
- Zhenjiang Animal Disease Prevention and Control Center, Zhenjiang 212000, China
| | - Jiaqi Liu
- College of Veterinary Medicine (Institute of Comparative Medicine), Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China; Joint International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of China, Yangzhou University, Yangzhou 225009, China
| | - Guoqiang Zhu
- College of Veterinary Medicine (Institute of Comparative Medicine), Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China; Joint International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of China, Yangzhou University, Yangzhou 225009, China
| | - Pengpeng Xia
- College of Veterinary Medicine (Institute of Comparative Medicine), Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China; Joint International Research Laboratory of Prevention and Control of Important Animal Infectious Diseases and Zoonotic Diseases of China, Yangzhou University, Yangzhou 225009, China.
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11
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Li Y, Pan AP, Ye Y, Shao X, Tu R, Liu Y, Yu AY. FoxO1 promotes high glucose-induced inflammation and cataract formation via JAK1/STAT1. Graefes Arch Clin Exp Ophthalmol 2025:10.1007/s00417-025-06744-6. [PMID: 39878886 DOI: 10.1007/s00417-025-06744-6] [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: 07/26/2024] [Revised: 12/29/2024] [Accepted: 01/14/2025] [Indexed: 01/31/2025] Open
Abstract
PURPOSE To investigate whether in diabetic cataract (DC), FoxO1 regulates high glucose (HG)-induced activation of NLRC4/IL-6 inflammatory mediators in human lens epithelial cells (SRA01/04) via the JAK1/STAT1 pathway, leading to cataract formation. METHODS Expression levels of FoxO1, inflammatory factor IL-6 and inflammatory vesicle NLRC4 were examined in SRA01/04 under high glucose (HG) stress at 25-150 mM. Rat lenses were also cultured using HG medium with or without the addition of the FoxO1 inhibitor AS1842856 and the JAK1 agonist RO8191. 5.5 mM glucose concentration group (NG) was used as a control. Real-time PCR, Western blots, and immunofluorescent staining evaluated the mRNA and protein levels of FoxO1, NLRC4, and IL-6. Apoptosis, cell viability, and EDU Staining were also assessed. RESULTS HG stimulation induced elevated FoxO1 expression and caused NLRC4/IL-6 activation in a concentration-dependent manner. Whereas knockdown of FoxO1 inhibited the high expression of NLRC4/IL-6 inflammatory mediators in response to HG stimulation. The growth of SRA01/04 was inhibited under HG condition, and the cell proliferation ability was restored and even promoted by knocking out FoxO1. HG incubation of rat lens resulted in lens clouding and cataract formation, which was prevented by AS1842856 treatment and reversed by RO8191. CONCLUSION FoxO1 positively regulates HG-induced SRA01/04 inflammatory activation through the JAK1/STAT1 pathway and promotes DC. This provides a feasible strategy for the treatment of diabetic cataract.
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Affiliation(s)
- Yike Li
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, 270 Xueyuan West Road, Wenzhou, 325027, Zhejiang, China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
- Department of Ophthalmology, The First Hospital of Lanzhou University, No. 1 West Donggang Road, Chengguan District, Lanzhou, 730000, Gansu, People's Republic of China
| | - An-Peng Pan
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, 270 Xueyuan West Road, Wenzhou, 325027, Zhejiang, China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Yishan Ye
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, 270 Xueyuan West Road, Wenzhou, 325027, Zhejiang, China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Xu Shao
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, 270 Xueyuan West Road, Wenzhou, 325027, Zhejiang, China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Ruixue Tu
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, 270 Xueyuan West Road, Wenzhou, 325027, Zhejiang, China
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Yang Liu
- Department of Ophthalmology, The First Hospital of Lanzhou University, No. 1 West Donggang Road, Chengguan District, Lanzhou, 730000, Gansu, People's Republic of China
| | - A-Yong Yu
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, 270 Xueyuan West Road, Wenzhou, 325027, Zhejiang, China.
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China.
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12
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Pandey A, Li Z, Gautam M, Ghosh A, Man SM. Molecular mechanisms of emerging inflammasome complexes and their activation and signaling in inflammation and pyroptosis. Immunol Rev 2025; 329:e13406. [PMID: 39351983 PMCID: PMC11742652 DOI: 10.1111/imr.13406] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2025]
Abstract
Inflammasomes are multi-protein complexes that assemble within the cytoplasm of mammalian cells in response to pathogen-associated molecular patterns (PAMPs) or damage-associated molecular patterns (DAMPs), driving the secretion of the pro-inflammatory cytokines IL-1β and IL-18, and pyroptosis. The best-characterized inflammasome complexes are the NLRP3, NAIP-NLRC4, NLRP1, AIM2, and Pyrin canonical caspase-1-containing inflammasomes, and the caspase-11 non-canonical inflammasome. Newer inflammasome sensor proteins have been identified, including NLRP6, NLRP7, NLRP9, NLRP10, NLRP11, NLRP12, CARD8, and MxA. These inflammasome sensors can sense PAMPs from bacteria, viruses and protozoa, or DAMPs in the form of mitochondrial damage, ROS, stress and heme. The mechanisms of action, physiological relevance, consequences in human diseases, and avenues for therapeutic intervention for these novel inflammasomes are beginning to be realized. Here, we discuss these emerging inflammasome complexes and their putative activation mechanisms, molecular and signaling pathways, and physiological roles in health and disease.
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Affiliation(s)
- Abhimanu Pandey
- Division of Immunology and Infectious Diseases, The John Curtin School of Medical ResearchThe Australian National UniversityCanberraAustralia
| | - Zheyi Li
- Division of Immunology and Infectious Diseases, The John Curtin School of Medical ResearchThe Australian National UniversityCanberraAustralia
| | - Manjul Gautam
- Division of Immunology and Infectious Diseases, The John Curtin School of Medical ResearchThe Australian National UniversityCanberraAustralia
| | - Aritra Ghosh
- Division of Immunology and Infectious Diseases, The John Curtin School of Medical ResearchThe Australian National UniversityCanberraAustralia
| | - Si Ming Man
- Division of Immunology and Infectious Diseases, The John Curtin School of Medical ResearchThe Australian National UniversityCanberraAustralia
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13
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Kibby EM, Robbins LK, Deep A, Min NK, Whalen LA, Nagy TA, Freeborn L, Corbett KD, Whiteley AT. A bacterial NLR-related protein recognizes multiple unrelated phage triggers to sense infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.12.17.629029. [PMID: 39763729 PMCID: PMC11702601 DOI: 10.1101/2024.12.17.629029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/18/2025]
Abstract
Immune systems must rapidly sense viral infections to initiate antiviral signaling and protect the host. Bacteria encode >100 distinct viral (phage) defense systems and each has evolved to sense crucial components or activities associated with the viral lifecycle. Here we used a high-throughput AlphaFold-multimer screen to discover that a bacterial NLR-related protein directly senses multiple phage proteins, thereby limiting immune evasion. Phages encoded as many as 5 unrelated activators that were predicted to bind the same interface of a C-terminal sensor domain. Genetic and biochemical assays confirmed activators bound to the bacterial NLR-related protein at high affinity, induced oligomerization, and initiated signaling. This work highlights how in silico strategies can identify complex protein interaction networks that regulate immune signaling across the tree of life.
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Affiliation(s)
- Emily M. Kibby
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
| | - Laurel K. Robbins
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
- Interdisciplinary Quantitative Biology Program (IQ Biology), BioFrontiers Institute, University of Colorado Boulder, Boulder, CO, USA
| | - Amar Deep
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, California, USA
| | - Nathan K. Min
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, California, USA
| | - Lindsay A. Whalen
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
| | - Toni A. Nagy
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
| | - Layla Freeborn
- Research Computing, Office of Information Technology, University of Colorado Boulder, Boulder, CO, USA
| | - Kevin D. Corbett
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, California, USA
- Department of Molecular Biology, University of California, San Diego, La Jolla, California, USA
| | - Aaron T. Whiteley
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO, USA
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14
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Scalavino V, Piccinno E, Giannelli G, Serino G. Inflammasomes in Intestinal Disease: Mechanisms of Activation and Therapeutic Strategies. Int J Mol Sci 2024; 25:13058. [PMID: 39684769 DOI: 10.3390/ijms252313058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2024] [Revised: 11/27/2024] [Accepted: 12/03/2024] [Indexed: 12/18/2024] Open
Abstract
NOD-like receptors (NLRs) are a family of cytosolic pattern recognition receptors (PRRs) implicated in the innate immune sensing of pathogens and damage signals. NLRs act as sensors in multi-protein complexes called inflammasomes. Inflammasome activity is necessary for the maintenance of intestinal homeostasis, although their aberrant activation contributes to the pathogenesis of several gastrointestinal diseases. In this review, we summarize the main features of the predominant types of inflammasomes involved in gastrointestinal immune responses and their implications in intestinal disease, including Irritable Bowel Syndrome (IBS), Inflammatory Bowel Disease (IBD), celiac disease, and Colorectal Cancer (CRC). In addition, we report therapeutic discoveries that target the inflammasome pathway, highlighting promising novel therapeutic strategies in the treatment of intestinal diseases. Collectively, our understanding of the mechanisms of intestinal inflammasome activation and their interactions with other immune pathways appear to be not fully elucidated. Moreover, the clinical relevance of the efficacy of inflammasome inhibitors has not been evaluated. Despite these limitations, a greater understanding of the effectiveness, specificity, and reliability of pharmacological and natural inhibitors that target inflammasome components could be an opportunity to develop new therapeutic options for the treatment of intestinal disease.
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Affiliation(s)
- Viviana Scalavino
- National Institute of Gastroenterology S. De Bellis, IRCCS Research Hospital, Via Turi 27, 70013 Castellana Grotte, BA, Italy
| | - Emanuele Piccinno
- National Institute of Gastroenterology S. De Bellis, IRCCS Research Hospital, Via Turi 27, 70013 Castellana Grotte, BA, Italy
| | - Gianluigi Giannelli
- National Institute of Gastroenterology S. De Bellis, IRCCS Research Hospital, Via Turi 27, 70013 Castellana Grotte, BA, Italy
| | - Grazia Serino
- National Institute of Gastroenterology S. De Bellis, IRCCS Research Hospital, Via Turi 27, 70013 Castellana Grotte, BA, Italy
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15
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Silva RL, Lopes AH, Becerra A, Fonseca MM, Maganin A, Saraiva ALL, Cunha FQ, Alves-Filho JC, Zamboni DS, Cunha TM. Molecular mechanisms of zymosan-induced inflammasome activation in macrophages. Cell Signal 2024; 124:111418. [PMID: 39304096 DOI: 10.1016/j.cellsig.2024.111418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 09/03/2024] [Accepted: 09/15/2024] [Indexed: 09/22/2024]
Abstract
Zymosan is a β-glucan-rich component derived from the cell walls of Saccharomyces cerevisiae extensively used in research for its potent immunomodulatory properties. It can prompt inflammatory responses such as peritonitis and arthritis, and is particularly used to study the immune response to fungal particles. Although the zymosan induced-release of the proinflammatory cytokine IL-1β by macrophages is an essential mechanism for combating fungal infection and inducing inflammation, the exact processes leading to its release remain not well understood. In this study, we uncover the intracellular mechanisms involved in zymosan induced-release of active IL-1β by peritoneal macrophages. Zymosan initiates pro-IL-1β formation through TLR2/MyD88 activation; however, Dectin-1 activation only amplify the conversion of pro-IL-1β into its active form. The conversion of inactive to active IL-1β upon zymosan stimulation depends on the NLRP3, ASC, and caspase-1 driven by the decrease in intracellular potassium ions. Notably, zymosan-induced activation of caspase-1 does not require phagocytosis. Instead, zymosan induces a rapid drop in the intracellular ATP concentration, which occurs concomitant with caspase-1 and IL-1β activation. Accordingly, disruption of glycolytic flux during zymosan stimulation promotes an additional reduction of intracellular ATP and concurrently amplifies the activation of caspase-1 and IL-1β. These results reveal that fungal recognition by macrophages results in a metabolic dysfunction, leading to a decrease of intracellular ATP associated with inflammasome activation.
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Affiliation(s)
- Rangel L Silva
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of Sao Paulo (USP), Brazil.
| | - Alexandre H Lopes
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of Sao Paulo (USP), Brazil
| | - Amanda Becerra
- Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, USP, Brazil
| | - Miriam M Fonseca
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of Sao Paulo (USP), Brazil
| | - Alexandre Maganin
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of Sao Paulo (USP), Brazil
| | - Andre L L Saraiva
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of Sao Paulo (USP), Brazil
| | - Fernando Q Cunha
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of Sao Paulo (USP), Brazil
| | - Jose C Alves-Filho
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of Sao Paulo (USP), Brazil
| | - Dario S Zamboni
- Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, USP, Brazil
| | - Thiago M Cunha
- Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirão Preto Medical School, University of Sao Paulo (USP), Brazil.
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16
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Ziehr BK, MacDonald JA. Regulation of NLRPs by reactive oxygen species: A story of crosstalk. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119823. [PMID: 39173681 DOI: 10.1016/j.bbamcr.2024.119823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 06/28/2024] [Accepted: 08/14/2024] [Indexed: 08/24/2024]
Abstract
The nucleotide oligomerization domain (NOD)-like receptors containing pyrin (NLRP) family of cytosolic pattern-recognition receptors play an integral role in host defense following exposure to a diverse set of pathogenic and sterile threats. The canonical event following ligand recognition is the formation of a heterooligomeric signaling complex termed the inflammasome that produces pro-inflammatory cytokines. Dysregulation of this process is associated with many autoimmune, cardiovascular, metabolic, and neurodegenerative diseases. Despite the range of activating stimuli which affect varied cell types, recent literature makes evident that reactive oxygen species (ROS) are integral to the initiation and propagation of inflammasome signaling. Notably, ROS production and inflammasome activation act in a positive feedback loop to promote this potent immune response. While NLRP3 is by far the most extensively studied NLRP, there is also sufficient literature to make these conclusions for other NLRPs family members. In all cases, a knowledge gap exists regarding the molecular targets and effects of ROS. Future research to define these targets and to parse the order and timing of ROS-mediated NLRP activation will provide meaningful insights into inflammasome biology. This will create novel therapeutic opportunities for the numerous illnesses that are impacted by inflammasome activity.
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Affiliation(s)
- Bjoern K Ziehr
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4Z6, Canada
| | - Justin A MacDonald
- Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4Z6, Canada.
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17
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Peñín-Franch A, Hurtado-Navarro L, García-Vidal JA, Escolar-Reina P, Medina-Mirapeix F, Pelegrin P. Multiple ASC-dependent inflammasomes drive differential pro-inflammatory cytokine production in a mouse model of tendinopathy. Biosci Rep 2024; 44:BSR20241282. [PMID: 39468985 PMCID: PMC11581841 DOI: 10.1042/bsr20241282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2024] [Revised: 10/04/2024] [Accepted: 10/23/2024] [Indexed: 10/30/2024] Open
Abstract
Inflammasomes are multiprotein complexes that regulate the bioactive production of IL-1β and IL-18, being implicated in the inflammatory response of different diseases. The inflammasome formed by the cytosolic sensor NLRP3 is highly promiscuous, as it could be activated by different pathogen- and sterile-signals. However, few models have studied the implication of NLRP3 in tissue damage-induced inflammation, particularly the implication of NLRP3 in tendinopathies. Here, we aimed to investigate the implication of NLRP3 in a mouse model of tendinopathy by collagenase degradation of the extracellular matrix in the Achilles' mice tendon. We found that NLRP3 was involved in the production of IL-1β, but another ASC-dependent inflammasome was required to produce IL-18 during sterile tissue damage. Our study suggests that in the immune response to extracellular matrix degradation different inflammasomes, probably expressed in different cell compartments, were able to differentially control IL-1β and IL-18 production in vivo. These results suggest the potential use of therapies targeting ASC as beneficial in the treatment of tendinopathies.
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Affiliation(s)
- Alejandro Peñín-Franch
- Molecular Inflammation and Physiotherapy gropus, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain
| | - Laura Hurtado-Navarro
- Molecular Inflammation and Physiotherapy gropus, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain
| | - José Antonio García-Vidal
- Molecular Inflammation and Physiotherapy gropus, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain
- Department of Physical Therapy, University of Murcia, 30120 Murcia, Spain
| | - Pilar Escolar-Reina
- Molecular Inflammation and Physiotherapy gropus, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain
- Department of Physical Therapy, University of Murcia, 30120 Murcia, Spain
| | - Francesc Medina-Mirapeix
- Molecular Inflammation and Physiotherapy gropus, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain
- Department of Physical Therapy, University of Murcia, 30120 Murcia, Spain
| | - Pablo Pelegrin
- Molecular Inflammation and Physiotherapy gropus, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain
- Department of Biochemistry and Molecular Biology B and Immunology, University of Murcia, 30120 Murcia, Spain
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18
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Liu Z, Xu S, Chen L, Gong J, Wang M. The role of pyroptosis in cancer: key components and therapeutic potential. Cell Commun Signal 2024; 22:548. [PMID: 39548573 PMCID: PMC11566483 DOI: 10.1186/s12964-024-01932-z] [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: 09/02/2024] [Accepted: 11/07/2024] [Indexed: 11/18/2024] Open
Abstract
Pyroptosis is a lytic and inflammatory form of gasdermin protein-mediated programmed cell death that is typically initiated by inflammasomes. The inflammasome response is an effective mechanism for eradicating germs and cancer cells in the event of cellular injury. The gasdermin family is responsible for initiating pyroptosis, a process in which holes are made in the cell membrane to allow inflammatory chemicals to escape. Mounting evidence indicates that pyroptosis is critical for controlling the development of cancer. In this review, we provide a general overview of pyroptosis, examine the relationship between the primary elements of pyroptosis and tumors, and stress the necessity of pyroptosis-targeted therapy in tumors. Furthermore, we explore its dual nature as a double-edged sword capable of both inhibiting and facilitating the growth of cancer, depending on the specific conditions. Ultimately, pyroptosis is a phenomenon that has both positive and negative effects on tumors. Using this dual impact in a reasonable manner may facilitate investigation into the initiation and progression of tumors and offer insights for the development of novel treatments centered on pyroptosis.
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Affiliation(s)
- Zixi Liu
- Department of Biliary-Pancreatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Simiao Xu
- Division of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Lin Chen
- Department of Biliary-Pancreatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Jun Gong
- Department of Biliary-Pancreatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, Hubei, 430030, China.
| | - Min Wang
- Department of Biliary-Pancreatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave, Wuhan, Hubei, 430030, China.
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19
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Samanta Moraes Laranjeira R, Eduarda de Albuquerque Borborema M, Milene Dos Santos Barbosa A, Vieira de Barros Arcoverde J, Albertina Dantas de Lima C, de Rezende Duarte A, Guiomar Sales Gomes da Silva B, de Azevêdo Silva J, Santos N. Investigating the influence of inflammasome complex genes on Turner syndrome. Hum Immunol 2024; 85:111164. [PMID: 39447524 DOI: 10.1016/j.humimm.2024.111164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 10/05/2024] [Accepted: 10/14/2024] [Indexed: 10/26/2024]
Abstract
Turner syndrome (TS) is associated with an increased susceptibility to inflammatory and autoimmune diseases. This study investigates the association between genetic polymorphisms in the IL1B and NLRP3 genes, as well as the expression profiles of IL1B, NLRP3, and NLRP1, and the risk of inflammatory and autoimmune conditions in TS patients compared to healthy controls. The genetic association analysis included 92 TS patients (case) and 146 healthy controls (HC), evaluating IL1B rs16944, NLRP3 rs10754558 and rs4925659 using TaqMan genotyping assays. In addition, mRNA expression levels of IL1B, NLRP3, and NLRP1 were also compared in 17 TS patients and 17 healthy females (control group) using qPCR-based fluorogenic probes. The study found significant associations with the G allele of rs16944 (p = 0.001) and the GG genotype (p = 0.002) in TS patients, though these were not associated with inflammatory disorders in this group., On the other hand, rs4925659 exhibited a significantly higher frequency of the A allele (p = 0.02) and AA genotype (p = 0.0001) in HC, while the A allele and GA genotype were more common in the TS group (p = 0.0001). Expression analysis revealed a downregulation of IL1B and NLRP3 (fold change: FC = -6.78 and -15.73, respectively) and an upregulation of NLRP1 (FC = 21.5) in TS patients compared to HC. These results indicate a differential distribution of IL1B and NLRP3 polymorphisms in TS patients, and suggest that alterations in the expression of IL1B, NLRP3, and NLRP1 may contribute to an inflammatory imbalance in the Turner syndrome.
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Affiliation(s)
| | - Maria Eduarda de Albuquerque Borborema
- Departamento de Genética, Universidade Federal de Pernambuco, Recife, PE, Brazil; Laboratório de Imunopatologia Keizo Asami - LIKA, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | | | | | | | - Andréa de Rezende Duarte
- Serviço de Genética Médica, Instituto de Medicina Integral Professor Fernando Figueira, Recife, PE, Brazil
| | | | - Jaqueline de Azevêdo Silva
- Departamento de Genética, Universidade Federal de Pernambuco, Recife, PE, Brazil; Laboratório de Imunopatologia Keizo Asami - LIKA, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Neide Santos
- Departamento de Genética, Universidade Federal de Pernambuco, Recife, PE, Brazil
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20
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Zhou YR, Dang JJ, Yang QC, Sun ZJ. The regulation of pyroptosis by post-translational modifications: molecular mechanisms and therapeutic targets. EBioMedicine 2024; 109:105420. [PMID: 39476537 PMCID: PMC11564932 DOI: 10.1016/j.ebiom.2024.105420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 08/23/2024] [Accepted: 10/09/2024] [Indexed: 11/17/2024] Open
Abstract
Pyroptosis, a type of programmed cell death mediated by gasdermin family proteins, releases a large amount of immune stimulatory substances, which further contribute to inflammation and elicit an adaptive immune response against tumours and pathogens. And it occurs through multiple pathways that involve the activation of specific caspases and the cleavage of gasdermins. Post-translational modifications (PTMs) could influence the chemical properties of the modified residues and neighbouring regions, ultimately affecting the activity, stability, and functions of proteins to regulate pyroptosis. Many studies have been conducted to explore the influence of PTMs on the regulation of pyroptosis. In this review, we provide a comprehensive summary of different types of PTMs that influence pyroptosis, along with their corresponding modifying enzymes. Moreover, it elaborates on the specific contributions of different PTMs to pyroptosis and delves into how the regulation of these modifications can be leveraged for therapeutic interventions in cancer and inflammatory diseases.
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Affiliation(s)
- Yi-Rao Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Centre for Immunology and Metabolism, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430079, China
| | - Jun-Jie Dang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Centre for Immunology and Metabolism, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430079, China
| | - Qi-Chao Yang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Centre for Immunology and Metabolism, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430079, China.
| | - Zhi-Jun Sun
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Centre for Immunology and Metabolism, Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430079, China.
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21
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Gao Y, Yue J, Ha F, Wang Y, Wang R, Yang X, Zhang J, Liu X, Zhang Y, Han T, Yang R. Bile acid derivatives from gut microbiota promote GBPs-mediated activation of caspase-4/11 by LPS through lncRNA57RIK. Int J Biol Sci 2024; 20:5831-5849. [PMID: 39664579 PMCID: PMC11628326 DOI: 10.7150/ijbs.97059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Accepted: 10/11/2024] [Indexed: 12/13/2024] Open
Abstract
Lipopolysaccharide (LPS) mediated caspases-4 (humans) and caspase-11 (rodent) (caspase-4/11) signaling can cause maturation of inflammatory cytokine IL-1β and cellular pyroptosis in the macrophages through guanylate-binding proteins (GBPs). However, how caspase-4/11s bind with GBPs together to activate caspase-4/11 by LPS remains elusive. We here found that BA derivatives from gut microbiota can regulate sensitivity of macrophages to LPS and Gram-negative bacteria through lncRNA57RIK. BA derivatives such as deoxycholic acid (DCA) could induce lncRNA57RIK expression through sphingosine-1-phosphate receptor 2 (S1PR2) in the macrophages of mice and humans. Both murine and human lncRNA57RIK knockout (KO) macrophages did not produce immune response(s) to LPS or gram negative bacteria. LncRNA57RIK KO mice had also reduced inflammatory responses to LPS or Salmonella typhimurium (S. T) infection. Mechanistically, lncRNA57RIK could bind intracellular proteases caspase-4/11 with GBP1 together in the macrophages of human and mice to cause LPS-mediated activation of caspase-4/11. Thus, BA derivatives from gut microbiota promote GBPs-mediated activation of caspase-4/11 by LPS through lncRNA57RIK.
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Affiliation(s)
- Yunhuan Gao
- Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin 300071, China
| | - Jianmei Yue
- Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin 300071, China
| | - Fushuang Ha
- The Third Central Clinical College of Tianjin Medical University, Tianjin 300170, China
| | - Ya Wang
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin 300071, China
| | - Rong Wang
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin 300071, China
| | - Xiaorong Yang
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin 300071, China
| | - Junqi Zhang
- College of life Science, Nankai University, Tianjin, China, Tianjin 300121, China
| | - Xinqi Liu
- College of life Science, Nankai University, Tianjin, China, Tianjin 300121, China
| | - Yuan Zhang
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin 300071, China
| | - Tao Han
- Tianjin Union Medical Center, Tianjin Medical University, Tianjin 300270, China
| | - Rongcun Yang
- Translational Medicine Institute, Affiliated Tianjin Union Medical Center of Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Department of Immunology, Nankai University School of Medicine; Nankai University, Tianjin 300071, China
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22
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Jin Z, Lu J, Xu H, Zhang Y, Zhang S, Zhang D, Hu J, Shi Z, Li Z, Wang J. Exploring the correlation between innate immune activation of inflammasome and regulation of pyroptosis after intracerebral hemorrhage: From mechanism to treatment. Biomed Pharmacother 2024; 179:117382. [PMID: 39241565 DOI: 10.1016/j.biopha.2024.117382] [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: 06/24/2024] [Revised: 08/26/2024] [Accepted: 08/30/2024] [Indexed: 09/09/2024] Open
Abstract
Stroke has emerged as the primary cause of disability and death globally in recent years. Intracerebral hemorrhage (ICH), a particularly severe kind of stroke, is occurring in an increasing number of people. The two main clinical treatments for ICH now in use are conservative pharmaceutical therapy and surgical intervention, both of which have risks and drawbacks. Consequently, it is crucial to look into the pathophysiology of ICH and consider cutting-edge therapeutic approaches. Recent research has revealed that pyroptosis is a newly identified type of cell death distinguished by the break of the cell membrane and the discharge of pro-inflammatory substances through different routes. Following ICH, glial cells experience pyroptosis, which worsens neuroinflammation. Hence, the onset and progression of ICH are strongly linked to pyroptosis, which is facilitated by different inflammasomes. It is essential to conduct a comprehensive investigation of ICH damage processes and uncover new targets for treatment. The impact and function of pyroptosis in ICH, as well as the activation and regulation of inflammasomes and their mediated pyroptosis pathways will be fully discussed in this review.
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Affiliation(s)
- Ziqi Jin
- College of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin 130017, China
| | - Jing Lu
- Research Center of Traditional Chinese Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, Jilin 130021, China
| | - Hanying Xu
- Department of Encephalopathy, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, Jilin 130021, China
| | - Ying Zhang
- Department of Encephalopathy, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, Jilin 130021, China
| | - Shanshan Zhang
- College of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin 130017, China
| | - Dongmei Zhang
- Research Center of Traditional Chinese Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, Jilin 130021, China
| | - Jing Hu
- College of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin 130017, China
| | - Zhao Shi
- College of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin 130017, China
| | - Zhuyang Li
- College of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin 130017, China
| | - Jian Wang
- Department of Encephalopathy, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, Jilin 130021, China.
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23
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Tong G, Shen Y, Li H, Qian H, Tan Z. NLRC4, inflammation and colorectal cancer (Review). Int J Oncol 2024; 65:99. [PMID: 39239759 PMCID: PMC11387119 DOI: 10.3892/ijo.2024.5687] [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: 07/09/2024] [Accepted: 08/19/2024] [Indexed: 09/07/2024] Open
Abstract
Chronic inflammation is recognized as a major risk factor for cancer and is involved in every phase of the disease. Inflammasomes are central to the inflammatory response and play a crucial role in cancer development. The present review summarizes the role of Nod‑like receptor C4 (NLRC4) in inflammation and colorectal cancer (CRC). Reviews of the literature were conducted using Web of Science, PubMed and CNKI, with search terms including 'NLRC4', 'colorectal cancer', 'auto‑inflammatory diseases' and 'prognosis'. Variants of NLRC4 can cause recessive immune dysregulation and autoinflammation or lead to ulcerative colitis as a heterozygous risk factor. Additionally, genetic mutations in inflammasome components may increase susceptibility to cancer. NLRC4 is considered a tumor suppressor in CRC. The role of NLRC4 in CRC signaling pathways is currently understood to involve five key aspects (caspase 1, NLRP3/IL‑8, IL‑1β/IL‑1, NAIP and p53). The mechanisms by which NLRC4 is involved in CRC are considered to be threefold (through pyroptosis, apoptosis, necroptosis and PANoptosis; regulating the immune response; and protecting intestinal epithelial cells to prevent CRC). However, the impact of NLRC4 mutations on CRC remains unclear. In conclusion, NLRC4 is a significant inflammasome that protects against CRC through various signaling pathways and mechanisms. The association between NLRC4 mutations and CRC warrants further investigation.
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Affiliation(s)
- Guojun Tong
- Department of Colorectal Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, Zhejiang 313003, P.R. China
- Central Laboratory, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, Zhejiang 313003, P.R. China
| | - Yan Shen
- Department of General Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, Zhejiang 313003, P.R. China
| | - Hui Li
- Department of General Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, Zhejiang 313003, P.R. China
| | - Hai Qian
- Department of General Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, Zhejiang 313003, P.R. China
| | - Zhenhua Tan
- Department of General Surgery, Huzhou Central Hospital, The Affiliated Central Hospital of Huzhou University, Huzhou, Zhejiang 313003, P.R. China
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24
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Ge J, Li X, Xia Y, Chen Z, Xie C, Zhao Y, Chen K, Shen Y, Tong J. Recent advances in NLRP3 inflammasome in corneal diseases: Preclinical insights and therapeutic implications. Ocul Surf 2024; 34:392-405. [PMID: 39357820 DOI: 10.1016/j.jtos.2024.09.007] [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: 04/17/2024] [Revised: 09/18/2024] [Accepted: 09/24/2024] [Indexed: 10/04/2024]
Abstract
NLRP3 inflammasome is a cytosolic multiprotein complex formed in response to exogenous environmental stress and cellular damage. The three major components of the NLRP3 inflammasome are the innate immunoreceptor protein NLRP3, the adapter protein apoptosis-associated speck-like protein containing a C-terminal caspase activation and recruitment domain, and the inflammatory protease enzyme caspase-1. The integrated NLRP3 inflammasome triggers the activation of caspase-1, leading to GSDMD-dependent pyroptosis and facilitating the maturation and release of inflammatory cytokines, namely interleukin (IL)-18 and IL-1β. However, the inflammatory responses mediated by the NLRP3 inflammasome exhibit dual functions in innate immune defense and cellular homeostasis. Aberrant activation of the NLRP3 inflammasome matters in the etiology and pathophysiology of various corneal diseases. Corneal alkali burn can induce pyroptosis, neutrophil infiltration, and corneal angiogenesis via the activation of NLRP3 inflammasome. When various pathogens invade the cornea, NLRP3 inflammasome recognizes pathogen-associated molecular patterns or damage-associated molecular patterns to engage in pro-inflammatory and anti-inflammatory mechanisms. Moreover, chronic inflammation and proinflammatory cascades mediated by the NLRP3 inflammasome contribute to the pathogenesis of diabetic keratopathy. Furthermore, overproduction of reactive oxygen species, mitochondrial dysfunction, and toll-like receptor-mediated activation of nuclear factor kappa B drive the stimulation of NLRP3 inflammasome and participate in the progression of dry eye disease. However, there still exist controversies regarding the regulatory pathways of the NLRP3 inflammasome. In this review, we provide a comprehensive overview of recent advancements in the function of NLRP3 inflammasome in corneal diseases and its regulatory pathways primarily through studies using animal models. Furthermore, we explore prospects for pharmacologically targeting pathways associated with NLRP3.
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Affiliation(s)
- Jiayun Ge
- Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xiang Li
- Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yutong Xia
- Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhitong Chen
- Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Chen Xie
- Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yuan Zhao
- Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Kuangqi Chen
- Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Eye Hospital of Shandong First Medical University (Shandong Eye Hospital), Eye Institute of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Jinan, Shandong, China; School of Ophthalmology, Shandong First Medical University, Jinan, Shandong, China.
| | - Ye Shen
- Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
| | - Jianping Tong
- Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
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25
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Zhang Z, Yang Z, Wang S, Wang X, Mao J. Overview of pyroptosis mechanism and in-depth analysis of cardiomyocyte pyroptosis mediated by NF-κB pathway in heart failure. Biomed Pharmacother 2024; 179:117367. [PMID: 39214011 DOI: 10.1016/j.biopha.2024.117367] [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: 07/17/2024] [Revised: 08/14/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024] Open
Abstract
The pyroptosis of cardiomyocytes has become an essential topic in heart failure research. The abnormal accumulation of these biological factors, including angiotensin II, advanced glycation end products, and various growth factors (such as connective tissue growth factor, vascular endothelial growth factor, transforming growth factor beta, among others), activates the nuclear factor-κB (NF-κB) signaling pathway in cardiovascular diseases, ultimately leading to pyroptosis of cardiomyocytes. Therefore, exploring the underlying molecular biological mechanisms is essential for developing novel drugs and therapeutic strategies. However, our current understanding of the precise regulatory mechanism of this complex signaling pathway in cardiomyocyte pyroptosis is still limited. Given this, this study reviews the milestone discoveries in the field of pyroptosis research since 1986, analyzes in detail the similarities, differences, and interactions between pyroptosis and other cell death modes (such as apoptosis, necroptosis, autophagy, and ferroptosis), and explores the deep connection between pyroptosis and heart failure. At the same time, it depicts in detail the complete pathway of the activation, transmission, and eventual cardiomyocyte pyroptosis of the NF-κB signaling pathway in the process of heart failure. In addition, the study also systematically summarizes various therapeutic approaches that can inhibit NF-κB to reduce cardiomyocyte pyroptosis, including drugs, natural compounds, small molecule inhibitors, gene editing, and other cutting-edge technologies, aiming to provide solid scientific support and new research perspectives for the prevention and treatment of heart failure.
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Affiliation(s)
- Zeyu Zhang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300381, China; Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zhihua Yang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300381, China; Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Shuai Wang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300381, China
| | - Xianliang Wang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300381, China.
| | - Jingyuan Mao
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300381, China.
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26
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Liu Y, Pan R, Ouyang Y, Gu W, Xiao T, Yang H, Tang L, Wang H, Xiang B, Chen P. Pyroptosis in health and disease: mechanisms, regulation and clinical perspective. Signal Transduct Target Ther 2024; 9:245. [PMID: 39300122 DOI: 10.1038/s41392-024-01958-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 08/14/2024] [Accepted: 08/26/2024] [Indexed: 09/22/2024] Open
Abstract
Pyroptosis is a type of programmed cell death characterized by cell swelling and osmotic lysis, resulting in cytomembrane rupture and release of immunostimulatory components, which play a role in several pathological processes. Significant cellular responses to various stimuli involve the formation of inflammasomes, maturation of inflammatory caspases, and caspase-mediated cleavage of gasdermin. The function of pyroptosis in disease is complex but not a simple angelic or demonic role. While inflammatory diseases such as sepsis are associated with uncontrollable pyroptosis, the potent immune response induced by pyroptosis can be exploited as a therapeutic target for anti-tumor therapy. Thus, a comprehensive review of the role of pyroptosis in disease is crucial for further research and clinical translation from bench to bedside. In this review, we summarize the recent advancements in understanding the role of pyroptosis in disease, covering the related development history, molecular mechanisms including canonical, non-canonical, caspase 3/8, and granzyme-mediated pathways, and its regulatory function in health and multiple diseases. Moreover, this review also provides updates on promising therapeutic strategies by applying novel small molecule inhibitors and traditional medicines to regulate pyroptosis. The present dilemmas and future directions in the landscape of pyroptosis are also discussed from a clinical perspective, providing clues for scientists to develop novel drugs targeting pyroptosis.
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Affiliation(s)
- Yifan Liu
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, 410013, China
- Department of Oncology, Xiangya Hospital, Central South University, 87th Xiangya road, Changsha, 410008, Hunan province, China
| | - Renjie Pan
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, 410013, China
| | - Yuzhen Ouyang
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, 410013, China
- Department of Neurology, Xiangya Hospital, Central South University, 87th Xiangya road, Changsha, 410008, Hunan province, China
| | - Wangning Gu
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, 410013, China
| | - Tengfei Xiao
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, 410013, China
| | - Hongmin Yang
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, 410013, China
| | - Ling Tang
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, 410013, China
| | - Hui Wang
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, 410013, China.
| | - Bo Xiang
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, 410013, China.
| | - Pan Chen
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, 410013, China.
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Atalay Ekiner S, Gęgotek A, Skrzydlewska E. Inflammasome activity regulation by PUFA metabolites. Front Immunol 2024; 15:1452749. [PMID: 39290706 PMCID: PMC11405227 DOI: 10.3389/fimmu.2024.1452749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Accepted: 08/19/2024] [Indexed: 09/19/2024] Open
Abstract
Oxidative stress and the accompanying chronic inflammation constitute an important metabolic problem that may lead to pathology, especially when the body is exposed to physicochemical and biological factors, including UV radiation, pathogens, drugs, as well as endogenous metabolic disorders. The cellular response is associated, among others, with changes in lipid metabolism, mainly due to the oxidation and the action of lipolytic enzymes. Products of oxidative fragmentation/cyclization of polyunsaturated fatty acids (PUFAs) [4-HNE, MDA, 8-isoprostanes, neuroprostanes] and eicosanoids generated as a result of the enzymatic metabolism of PUFAs significantly modify cellular metabolism, including inflammation and the functioning of the immune system by interfering with intracellular molecular signaling. The key regulators of inflammation, the effectiveness of which can be regulated by interacting with the products of lipid metabolism under oxidative stress, are inflammasome complexes. An example is both negative or positive regulation of NLRP3 inflammasome activity by 4-HNE depending on the severity of oxidative stress. 4-HNE modifies NLRP3 activity by both direct interaction with NLRP3 and alteration of NF-κB signaling. Furthermore, prostaglandin E2 is known to be positively correlated with both NLRP3 and NLRC4 activity, while its potential interference with AIM2 or NLRP1 activity is unproven. Therefore, the influence of PUFA metabolites on the activity of well-characterized inflammasome complexes is reviewed.
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Affiliation(s)
| | - Agnieszka Gęgotek
- Department of Analytical Chemistry, Medical University of Bialystok, Bialystok, Poland
| | - Elżbieta Skrzydlewska
- Department of Analytical Chemistry, Medical University of Bialystok, Bialystok, Poland
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28
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Shi W, Gao Y, Yang H, Li H, Liu T, Zhao J, Wei Z, Lin L, Huang Y, Guo Y, Xu A, Bai Z, Xiao X. Bavachinin, a main compound of Psoraleae Fructus, facilitates GSDMD-mediated pyroptosis and causes hepatotoxicity in mice. Chem Biol Interact 2024; 400:111133. [PMID: 38969277 DOI: 10.1016/j.cbi.2024.111133] [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: 12/27/2023] [Revised: 06/18/2024] [Accepted: 07/01/2024] [Indexed: 07/07/2024]
Abstract
Psoraleae Fructus (PF, Psoralea corylifolia L.), a traditional medicine with a long history of application, is widely used clinically for the treatment of various diseases. However, the reports of PF-related adverse reactions, such as hepatotoxicity, phototoxic dermatitis, and allergy, are increasing year by year, with liver injury being the mostly common. Our previous studies have demonstrated that PF and its preparations can cause liver injury in lipopolysaccharide (LPS)-mediated susceptibility mouse model, but the mechanism of PF-related liver injury is unclear. In this study, we showed that PF and bavachinin, a major component of PF, can directly induce the expression of caspase-1 and interleukin-1β (IL-1β), indicating that PF and bavachinin can directly triggered the activation of inflammasome. Furthermore, pretreatment with NLR family pyrin domain-containing 3 (NLRP3), NLR family CARD domain containing 4 (NLRC4) or absent in melanoma 2 (AIM2) inflammasome inhibitors, containing MCC950, ODN TTAGGG (ODN) and carnosol, all significantly reversed bavachinin-induced inflammasome activation. Mechanistically, bavachinin dose-dependently promote Gasdermin D (GSDMD) post-shear activation and then induce mitochondrial reactive oxygen species (mtROS) production and this effect is markedly inhibited by pretreatment with N-Acetylcysteine amide (NAC). In addition, combination treatment of LPS and bavachinin significantly induced liver injury in mice, but not LPS or bavachinin alone, and transcriptome analysis further validated these results. Thus, PF and bavachinin can induce the activation of inflammasome by promoting GSDMD cleavage and cause hepatotoxicity in mice. Therefore, PF, bavachinin, and PF-related preparations should be avoided in patients with inflammasome activation-associated diseases.
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Affiliation(s)
- Wei Shi
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China; Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yuan Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
| | - Huijie Yang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China; Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Hui Li
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China; Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Tingting Liu
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jia Zhao
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Ziying Wei
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Li Lin
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China; Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yujiao Huang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Yuming Guo
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Anlong Xu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China.
| | - Zhaofang Bai
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; National Key Laboratory of Kidney Diseases, China.
| | - Xiaohe Xiao
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; National Key Laboratory of Kidney Diseases, China.
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van den Berg DF, Costa AR, Esser JQ, Stanciu I, Geissler JQ, Zoumaro-Djayoon AD, Haas PJ, Brouns SJJ. Bacterial homologs of innate eukaryotic antiviral defenses with anti-phage activity highlight shared evolutionary roots of viral defenses. Cell Host Microbe 2024; 32:1427-1443.e8. [PMID: 39094584 DOI: 10.1016/j.chom.2024.07.007] [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: 12/04/2023] [Revised: 05/21/2024] [Accepted: 07/09/2024] [Indexed: 08/04/2024]
Abstract
Prokaryotes have evolved a multitude of defense systems to protect against phage predation. Some of these resemble eukaryotic genes involved in antiviral responses. Here, we set out to systematically project the current knowledge of eukaryotic-like antiviral defense systems onto prokaryotic genomes, using Pseudomonas aeruginosa as a model organism. Searching for phage defense systems related to innate antiviral genes from vertebrates and plants, we uncovered over 450 candidates. We validated six of these phage defense systems, including factors preventing viral attachment, R-loop-acting enzymes, the inflammasome, ubiquitin pathway, and pathogen recognition signaling. Collectively, these defense systems support the concept of deep evolutionary links and shared antiviral mechanisms between prokaryotes and eukaryotes.
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Affiliation(s)
- Daan F van den Berg
- Department of Bionanoscience, Delft University of Technology, 2629 HZ Delft, the Netherlands; Kavli Institute of Nanoscience, Delft, the Netherlands
| | - Ana Rita Costa
- Department of Bionanoscience, Delft University of Technology, 2629 HZ Delft, the Netherlands; Kavli Institute of Nanoscience, Delft, the Netherlands
| | - Jelger Q Esser
- Department of Bionanoscience, Delft University of Technology, 2629 HZ Delft, the Netherlands; Kavli Institute of Nanoscience, Delft, the Netherlands
| | - Ilinka Stanciu
- Department of Bionanoscience, Delft University of Technology, 2629 HZ Delft, the Netherlands; Kavli Institute of Nanoscience, Delft, the Netherlands
| | - Jasper Q Geissler
- Department of Bionanoscience, Delft University of Technology, 2629 HZ Delft, the Netherlands; Kavli Institute of Nanoscience, Delft, the Netherlands
| | | | - Pieter-Jan Haas
- Medical Microbiology, University Medical Center Utrecht, Utrecht University, 3584 CX Utrecht, the Netherlands
| | - Stan J J Brouns
- Department of Bionanoscience, Delft University of Technology, 2629 HZ Delft, the Netherlands; Kavli Institute of Nanoscience, Delft, the Netherlands.
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Ren L, Yang H, Wang H, Qin S, Zhan X, Li H, Wei Z, Fang Z, Li Q, Liu T, Shi W, Zhao J, Li Z, Bai Z, Xu G, Zhao J. Tryptanthrin suppresses multiple inflammasome activation to regulate NASH progression by targeting ASC protein. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 131:155758. [PMID: 38843643 DOI: 10.1016/j.phymed.2024.155758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 05/11/2024] [Accepted: 05/17/2024] [Indexed: 06/25/2024]
Abstract
BACKGROUND The adaptor protein apoptosis-associated speck-like protein (ASC) containing a caspase recruitment domain (CARD) can be activated through pyrin domain (PYD) interactions between sensors and ASC, and through CARD interactions between caspase-1 and ASC. Although the majority of ternary inflammasome complexes depend on ASC, drugs targeting ASC protein remain scarce. After screening natural compounds from Isatidis Radixin, we found that tryptanthrin (TPR) could inhibit NLRP3-induced IL-1β and caspase-1 production, but the underlying anti-inflammatory mechanisms remain to be elucidated. PURPOSE The purpose of this study was to determine the impact of TPR on the NLRP3, NLRC4, and AIM2 inflammasomes and the underlying mechanisms. Additionally, the efficacy of TPR was analysed in the further course of methionine- and choline-deficient (MCD)-induced NASH and lipopolysaccharide (LPS)-induced sepsis models of mice. METHODS In vitro studies used bone marrow-derived macrophages to assess the anti-inflammatory activity of TPR, and the techniques included western blot, testing of intracellular K+ and Ca2+, immunofluorescence, enzyme-linked immunosorbent assay (ELISA), co-immunoprecipitation, ASC oligomerization assay, surface plasmon resonance (SPR), and molecular docking. We used LPS-induced sepsis models and MCD-induced NASH models in vivo to evaluate the effectiveness of TPR in inhibiting inflammatory diseases. RESULTS Our observations suggested that TPR could inhibit NLRP3, NLRC4, and AIM2 inflammasome activation. As shown in a mouse model of inflammatory diseases caused by MCD-induced NASH and LPS-induced sepsis, TPR significantly alleviated the progression of diseases. TPR interrupted the interactions between ASC and NLRP3/NLRC4/AIM2 in the co-immunoprecipitation experiment, and stable binding of TPR to ASC was also evident in SPR experiments. The underlying mechanisms of anti-inflammatory activities of TPR might be associated with targeting ASC, in particular, PYD domain of ASC. CONCLUSION In general, the requirement for ASC in multiple inflammasome complexes makes TPR, as a novel broad-spectrum inflammasome inhibitor, potentially useful for treating a wide range of multifactorial inflammasome-related diseases.
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Affiliation(s)
- Lutong Ren
- Department of Pharmacy, Inner Mongolia People's Hospital, Hohhot, China; Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Huijie Yang
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Hongbo Wang
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Shuanglin Qin
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Xiaoyan Zhan
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Hui Li
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Ziying Wei
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Zhie Fang
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Qiang Li
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Tingting Liu
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; The Third Affiliated Hospital of Zunyi Medical University (The First People's Hospital of Zunyi), Zunyi, China
| | - Wei Shi
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jia Zhao
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhiyong Li
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Beijing, China
| | - Zhaofang Bai
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Beijing, China.
| | - Guang Xu
- China Military Institute of Chinese Materia, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China; School of Chinese Medicine, Capital Medical University, Beijing, China.
| | - Jun Zhao
- Department of Hepatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China.
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Kirkik D, Kalkanli Tas S, Tanoglu A. Unraveling the blood microbiome: novel insights into inflammasome responses in Crohn's disease. Eur J Gastroenterol Hepatol 2024; 36:975-984. [PMID: 38251441 DOI: 10.1097/meg.0000000000002695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
OBJECTIVE Crohn's disease (CD), an inflammatory bowel disease with unknown etiology, is influenced by genetic, environmental, and immunological factors. This study aimed to analyze the blood microbiome and inflammasome responses, emphasizing NLRP3 protein expression and IL-1β and IL-18 plasma levels, between Crohn's patients and healthy subjects. METHODS A total of 40 volunteers were included in this study. The 16S rRNA technique was used to sequence the V3-V4 regions of the blood sample. NLRP3 protein levels in plasma were ascertained through Western Blot, and IL-1β and IL-18 plasma profiles were examined using ELISA. RESULTS Analysis highlighted five unique phyla in patients' plasma, emphasizing the role of the blood microbiome in CD. Compared to controls, Crohn's patients exhibited elevated NLRP3 protein expression. Plasma IL-1β levels were diminished in patients ( P = 0.0041), whereas IL-18 levels were comparably higher ( P = 0.8209). In patients with CD, the presence of Staphylococcus sciuri in blood samples highlights its potential role in the disease's onset. The study also underscored the interplay between dietary habits, specifically increased meat consumption, and the progression of CD. CONCLUSION Our pioneering research discerns the variations in the blood microbiome and inflammasome responses between Crohn's patients and healthy individuals. Significant microbiome alterations and the detection of the Staphylococcus sciuri pathogen in Crohn's patients were notable. The pronounced NLRP3 protein in patients suggests its potential as a diagnostic biomarker. Future explorations into IL-1β and IL-18 pathways promise to unveil innovative insights into CD.
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Affiliation(s)
- Duygu Kirkik
- Hamidiye Medicine Faculty, Department of Medical Biology, University of Health Sciences, Turkey
| | - Sevgi Kalkanli Tas
- Hamidiye Medicine Faculty, Department of Immunology, University of Health Sciences, Turkey
| | - Alpaslan Tanoglu
- Department of Internal Medicine, Division of Gastroenterology, Bahcesehir University and School of Medicine, Istanbul, Turkey
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Dahiya R, Sutariya VB, Gupta SV, Pant K, Ali H, Alhadrawi M, Kaur K, Sharma A, Rajput P, Gupta G, Almujri SS, Chinni SV. Harnessing pyroptosis for lung cancer therapy: The impact of NLRP3 inflammasome activation. Pathol Res Pract 2024; 260:155444. [PMID: 38986361 DOI: 10.1016/j.prp.2024.155444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/22/2024] [Accepted: 06/28/2024] [Indexed: 07/12/2024]
Abstract
Lung cancer is still a global health challenge in terms of high incidence, morbidity, and mortality. Recent scientific studies have determined that pyroptosis, a highly inflammatory form of programmed cell death, can be identified as a potential lung cancer therapeutic target. The NLRP3 inflammasome acts as a critical mediator in this process and, upon activation, activates multiprotein complex formation as well as caspase-1 activation. This process, triggered by a release of pro-inflammatory cytokines, results in pyroptotic cell death. Also, the relationship between the NLRP3 inflammasome and lung cancer was justified by its influence on tumour growth or metastasis. The molecular pathways produce progenitive mediators and remake the tissue. Finally, targeting NLRP3 inflammasome for pyroptosis induction and inhibition of its activation appears to be a promising lung cancer treatment approach. This technique makes cancer treatment more promising and personalized. This review explores the role of NLRP3 inflammasome activation and its possibilities in lung cancer treatment.
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Affiliation(s)
- Rajiv Dahiya
- School of Pharmacy, Faculty of Medical Sciences, The University of the West Indies, St. Augustine, Trinidad & Tobago, West Indies
| | - Vijaykumar B Sutariya
- USF Health Taneja College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Sheeba Varghese Gupta
- USF Health Taneja College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Kumud Pant
- Graphic Era (Deemed to be University) Clement Town Dehradun, 248002, India; Graphic Era Hill University Clement Town Dehradun, 248002, India.
| | - Haider Ali
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India; Department of Pharmacology, Kyrgyz State Medical College, Bishkek, Kyrgyzstan
| | - Merwa Alhadrawi
- College of Technical Engineering, The Islamic University, Najaf, Iraq; College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
| | - Kiranjeet Kaur
- Chandigarh Pharmacy College, Chandigarh Group of Colleges, Jhanjeri, Mohali, Punjab 140307, India
| | - Abhishek Sharma
- Department of Medicine, National Institute of Medical Sciences, NIMS University Rajasthan, Jaipur, India
| | - Pranchal Rajput
- School of Applied and Life Sciences, Division of Research and Innovation, Uttaranchal University, Dehradun, India
| | - Gaurav Gupta
- Centre for Research Impact & Outcome-Chitkara College of Pharmacy, Chitkara University, Punjab
| | - Salem Salman Almujri
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, Asir 61421, Saudi Arabia
| | - Suresh V Chinni
- Department of Biochemistry, Faculty of Medicine, Bioscience, and Nursing, MAHSA University, Jenjarom, Selangor 42610, Malaysia
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Javalgekar M, Jupp B, Vivash L, O'Brien TJ, Wright DK, Jones NC, Ali I. Inflammasomes at the crossroads of traumatic brain injury and post-traumatic epilepsy. J Neuroinflammation 2024; 21:172. [PMID: 39014496 PMCID: PMC11250980 DOI: 10.1186/s12974-024-03167-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 07/05/2024] [Indexed: 07/18/2024] Open
Abstract
Post-traumatic epilepsy (PTE) is one of the most debilitating consequences of traumatic brain injury (TBI) and is one of the most drug-resistant forms of epilepsy. Novel therapeutic treatment options are an urgent unmet clinical need. The current focus in healthcare has been shifting to disease prevention, rather than treatment, though, not much progress has been made due to a limited understanding of the disease pathogenesis. Neuroinflammation has been implicated in the pathophysiology of traumatic brain injury and may impact neurological sequelae following TBI including functional behavior and post-traumatic epilepsy development. Inflammasome signaling is one of the major components of the neuroinflammatory response, which is increasingly being explored for its contribution to the epileptogenic mechanisms and a novel therapeutic target against epilepsy. This review discusses the role of inflammasomes as a possible connecting link between TBI and PTE with a particular focus on clinical and preclinical evidence of therapeutic inflammasome targeting and its downstream effector molecules for their contribution to epileptogenesis. Finally, we also discuss emerging evidence indicating the potential of evaluating inflammasome proteins in biofluids and the brain by non-invasive neuroimaging, as potential biomarkers for predicting PTE development.
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Affiliation(s)
- Mohit Javalgekar
- The Department of Neuroscience, School of Translational Medicine, Monash University, 99, Commercial Road, Melbourne, Australia
- Department of Neurology, The Alfred Hospital, 99 commercial road, Melbourne, Australia
| | - Bianca Jupp
- The Department of Neuroscience, School of Translational Medicine, Monash University, 99, Commercial Road, Melbourne, Australia
- Department of Neurology, The Alfred Hospital, 99 commercial road, Melbourne, Australia
| | - Lucy Vivash
- The Department of Neuroscience, School of Translational Medicine, Monash University, 99, Commercial Road, Melbourne, Australia
- Department of Neurology, The Alfred Hospital, 99 commercial road, Melbourne, Australia
- The University of Melbourne, Parkville, Australia
| | - Terence J O'Brien
- The Department of Neuroscience, School of Translational Medicine, Monash University, 99, Commercial Road, Melbourne, Australia
- Department of Neurology, The Alfred Hospital, 99 commercial road, Melbourne, Australia
- The University of Melbourne, Parkville, Australia
| | - David K Wright
- The Department of Neuroscience, School of Translational Medicine, Monash University, 99, Commercial Road, Melbourne, Australia
- Department of Neurology, The Alfred Hospital, 99 commercial road, Melbourne, Australia
| | - Nigel C Jones
- The Department of Neuroscience, School of Translational Medicine, Monash University, 99, Commercial Road, Melbourne, Australia.
- Department of Neurology, The Alfred Hospital, 99 commercial road, Melbourne, Australia.
- The University of Melbourne, Parkville, Australia.
| | - Idrish Ali
- The Department of Neuroscience, School of Translational Medicine, Monash University, 99, Commercial Road, Melbourne, Australia.
- Department of Neurology, The Alfred Hospital, 99 commercial road, Melbourne, Australia.
- The University of Melbourne, Parkville, Australia.
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Wei B, Billman ZP, Nozaki K, Goodridge HS, Miao EA. NLRP3, NLRP6, and NLRP12 are inflammasomes with distinct expression patterns. Front Immunol 2024; 15:1418290. [PMID: 39076995 PMCID: PMC11284034 DOI: 10.3389/fimmu.2024.1418290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 07/01/2024] [Indexed: 07/31/2024] Open
Abstract
Inflammasomes are sensors that detect cytosolic microbial molecules or cellular damage, and in response they initiate a form of lytic regulated cell death called pyroptosis. Inflammasomes signal via homotypic protein-protein interactions where CARD or PYD domains are crucial for recruiting downstream partners. Here, we screened these domains from NLR family proteins, and found that the PYD domain of NLRP6 and NLRP12 could activate caspase-1 to induce cleavage of IL-1β and GSDMD. Inflammasome reconstitution verified that full length NLRP6 and NLRP12 formed inflammasomes in vitro, and NLRP6 was more prone to auto-activation. NLRP6 was highly expressed in intestinal epithelial cells (IEC), but not in immune cells. Molecular phylogeny analysis found that NLRP12 was closely related to NLRP3, but the activation mechanisms are different. NLRP3 was highly expressed in monocytes and macrophages, and was modestly but appreciably expressed in neutrophils. In contrast, NLRP12 was specifically expressed in neutrophils and eosinophils, but was not detectable in macrophages. NLRP12 mutations cause a periodic fever syndrome called NLRP12 autoinflammatory disease. We found that several of these patient mutations caused spontaneous activation of caspase-1 in vitro, which likely causes their autoinflammatory disease. Different cell types have unique cellular physiology and structures which could be perturbed by a pathogen, necessitating expression of distinct inflammasome sensors to monitor for signs of infection.
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Affiliation(s)
- Bo Wei
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC, United States
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, United States
| | - Zachary P. Billman
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC, United States
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, United States
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Kengo Nozaki
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC, United States
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, United States
| | - Helen S. Goodridge
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Edward A. Miao
- Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC, United States
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, United States
- Department of Cell Biology, Duke University School of Medicine, Durham, NC, United States
- Department of Pathology, Duke University School of Medicine, Durham, NC, United States
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Hu M, Deng F, Song X, Zhao H, Yan F. The crosstalk between immune cells and tumor pyroptosis: advancing cancer immunotherapy strategies. J Exp Clin Cancer Res 2024; 43:190. [PMID: 38987821 PMCID: PMC11234789 DOI: 10.1186/s13046-024-03115-7] [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: 03/13/2024] [Accepted: 07/02/2024] [Indexed: 07/12/2024] Open
Abstract
Pyroptosis is a cell death process characterized by cell swelling until membrane rupture and release of intracellular contents. As an effective tumor treatment strategy, inducing tumor cell pyroptosis has received widespread attention. In this process, the immune components within the tumor microenvironment play a key regulatory role. By regulating and altering the functions of immune cells such as cytotoxic T lymphocytes, natural killer cells, tumor-associated macrophages, and neutrophils, tumor cell pyroptosis can be induced. This article provides a comprehensive review of the molecular mechanisms of cell pyroptosis, the impact of the tumor immune microenvironment on tumor cell pyroptosis, and its mechanisms. It aims to gain an in-depth understanding of the communication between the tumor immune microenvironment and tumor cells, and to provide theoretical support for the development of new tumor immunotherapies.
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Affiliation(s)
- Mengyuan Hu
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Chenggong District, 1168 Chunrong West Road, Yunhua Street, Kunming, 650500, Yunnan, China
| | - Fengying Deng
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Chenggong District, 1168 Chunrong West Road, Yunhua Street, Kunming, 650500, Yunnan, China
| | - Xinlei Song
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Chenggong District, 1168 Chunrong West Road, Yunhua Street, Kunming, 650500, Yunnan, China
| | - Hongkun Zhao
- Key Laboratory of Yunnan Province, Yunnan Eye Institute, Affiliated Hospital of Yunnan University, Yunnan University, 176 Qingnian Road, Wuhua District, Kunming, 650031, Yunnan, China.
| | - Fei Yan
- Department of Pathology and Pathophysiology, Faculty of Basic Medical Sciences, Kunming Medical University, Chenggong District, 1168 Chunrong West Road, Yunhua Street, Kunming, 650500, Yunnan, China.
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Yang F, Dai Z, Xue MY, Chen XY, Liu J, Wang L, Xu LL, Di B. Identification and Validation of PKR as a Direct Target for the Novel Sulfonamide-Substituted Tetrahydroquinoline Nonselective Inhibitor of the NLRP3 Inflammasome. J Med Chem 2024; 67:10168-10189. [PMID: 38855903 DOI: 10.1021/acs.jmedchem.4c00343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
The NLRP3 inflammasome is a critical component of the innate immune system. The persistent abnormal activation of the NLRP3 inflammasome is implicated in numerous human diseases. Herein, sulfonamide-substituted tetrahydroquinoline derivative S-9 was identified as the most promising NLRP3 inhibitor, without obvious cytotoxicity. In vitro, S-9 inhibited the priming and activation stages of the NLRP3 inflammasome. Incidentally, we also observed that S-9 had inhibitory effects on the NLRC4 and AIM2 inflammasomes. To elucidate the multiple anti-inflammatory activities of S-9, photoaffinity probe P-2, which contained a photoaffinity label and a functional handle, was developed for target identification by chemical proteomics. We identified PKR as a novel target of S-9 in addition to NLRP3 by target fishing. Furthermore, S-9 exhibited a significant anti-neuroinflammatory effect in vivo. In summary, our findings show that S-9 is a promising lead compound targeting both PKR and NLRP3 that could emerge as a molecular tool for treating inflammasome-related diseases.
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Affiliation(s)
- Fan Yang
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Zhen Dai
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
- Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Ming-Yue Xue
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Xiao-Yi Chen
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Juan Liu
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Li Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Li-Li Xu
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
| | - Bin Di
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China
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Planas AM. Role of microglia in stroke. Glia 2024; 72:1016-1053. [PMID: 38173414 DOI: 10.1002/glia.24501] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/07/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024]
Abstract
Microglia play key roles in the post-ischemic inflammatory response and damaged tissue removal reacting rapidly to the disturbances caused by ischemia and working to restore the lost homeostasis. However, the modified environment, encompassing ionic imbalances, disruption of crucial neuron-microglia interactions, spreading depolarization, and generation of danger signals from necrotic neurons, induce morphological and phenotypic shifts in microglia. This leads them to adopt a proinflammatory profile and heighten their phagocytic activity. From day three post-ischemia, macrophages infiltrate the necrotic core while microglia amass at the periphery. Further, inflammation prompts a metabolic shift favoring glycolysis, the pentose-phosphate shunt, and lipid synthesis. These shifts, combined with phagocytic lipid intake, drive lipid droplet biogenesis, fuel anabolism, and enable microglia proliferation. Proliferating microglia release trophic factors contributing to protection and repair. However, some microglia accumulate lipids persistently and transform into dysfunctional and potentially harmful foam cells. Studies also showed microglia that either display impaired apoptotic cell clearance, or eliminate synapses, viable neurons, or endothelial cells. Yet, it will be essential to elucidate the viability of engulfed cells, the features of the local environment, the extent of tissue damage, and the temporal sequence. Ischemia provides a rich variety of region- and injury-dependent stimuli for microglia, evolving with time and generating distinct microglia phenotypes including those exhibiting proinflammatory or dysfunctional traits and others showing pro-repair features. Accurate profiling of microglia phenotypes, alongside with a more precise understanding of the associated post-ischemic tissue conditions, is a necessary step to serve as the potential foundation for focused interventions in human stroke.
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Affiliation(s)
- Anna M Planas
- Cerebrovascular Research Laboratory, Department of Neuroscience and Experimental Therapeutics, Instituto de Investigaciones Biomédicas de Barcelona (IIBB), Consejo Superior de Investigaciones Científicas (CSIC), Barcelona, Spain
- Cerebrovascular Diseases, Area of Clinical and Experimental Neuroscience, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-Hospital Clínic, Barcelona, Spain
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Di C, Ji M, Li W, Liu X, Gurung R, Qin B, Ye S, Qi R. Pyroptosis of Vascular Smooth Muscle Cells as a Potential New Target for Preventing Vascular Diseases. Cardiovasc Drugs Ther 2024:10.1007/s10557-024-07578-w. [PMID: 38822974 DOI: 10.1007/s10557-024-07578-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/14/2024] [Indexed: 06/03/2024]
Abstract
Vascular remodeling is the adaptive response of the vessel wall to physiological and pathophysiological changes, closely linked to vascular diseases. Vascular smooth muscle cells (VSMCs) play a crucial role in this process. Pyroptosis, a form of programmed cell death characterized by excessive release of inflammatory factors, can cause phenotypic transformation of VSMCs, leading to their proliferation, migration, and calcification-all of which accelerate vascular remodeling. Inhibition of VSMC pyroptosis can delay this process. This review summarizes the impact of pyroptosis on VSMCs and the pathogenic role of VSMC pyroptosis in vascular remodeling. We also discuss inhibitors of key proteins in pyroptosis pathways and their effects on VSMC pyroptosis. These findings enhance our understanding of the pathogenesis of vascular remodeling and provide a foundation for the development of novel medications that target the control of VSMC pyroptosis as a potential treatment strategy for vascular diseases.
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Affiliation(s)
- Chang Di
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, Haidian District, China.
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China.
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China.
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, 100191, China.
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, Beijing, 100191, China.
| | - Meng Ji
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, Haidian District, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, 100191, China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, Beijing, 100191, China
| | - Wenjin Li
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, Haidian District, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, 100191, China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, Beijing, 100191, China
| | - Xiaoyi Liu
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, Haidian District, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, 100191, China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, Beijing, 100191, China
| | - Rijan Gurung
- Cardiovascular Disease Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore
| | - Boyang Qin
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, Haidian District, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, 100191, China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, Beijing, 100191, China
| | - Shu Ye
- Cardiovascular Disease Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore
| | - Rong Qi
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, Haidian District, China.
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China.
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China.
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, 100191, China.
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, Beijing, 100191, China.
- Cardiovascular Disease Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore.
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Yang Z, Xu J, Kang T, Chen X, Zhou C. The Impact of NLRP3 Inflammasome on Osteoblasts and Osteogenic Differentiation: A Literature Review. J Inflamm Res 2024; 17:2639-2653. [PMID: 38707958 PMCID: PMC11067939 DOI: 10.2147/jir.s457927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 04/24/2024] [Indexed: 05/07/2024] Open
Abstract
Osteoblasts (OBs), which are a crucial type of bone cells, derive from bone marrow mesenchymal stem cells (MSCs). Accumulating evidence suggests inflammatory cytokines can inhibit the differentiation and proliferation of OBs, as well as interfere with their ability to synthesize bone matrix, under inflammatory conditions. NLRP3 inflammasome is closely associated with cellular pyroptosis, which can lead to excessive release of pro-inflammatory cytokines, causing tissue damage and inflammatory responses, however, the comprehensive roles of NLRP3 inflammasome in OBs and their differentiation have not been fully elucidated, making targeting NLRP3 inflammasome approaches to treat diseases related to OBs uncertain. In this review, we provide a summary of NLRP3 inflammasome activation and its impact on OBs. We highlight the significant roles of NLRP3 inflammasome in regulating OBs differentiation and function. Furthermore, current available strategies to affect OBs function and osteogenic differentiation targeting NLRP3 inflammasome are listed and analyzed. Finally, through the prospective discussion, we seek to provide novel insights into the crucial role of NLRP3 inflammasome in diseases related to OBs and offer valuable information for devising treatment strategies.
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Affiliation(s)
- Ziyuan Yang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, People’s Republic of China
- Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, People’s Republic of China
| | - Jiaan Xu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China
| | - Ting Kang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, People’s Republic of China
- Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, People’s Republic of China
| | - Xuepeng Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, 310006, People’s Republic of China
- Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, People’s Republic of China
| | - Chengcong Zhou
- The First Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China
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Guo Y, Lu W, Zhang Z, Liu H, Zhang A, Zhang T, Wu Y, Li X, Yang S, Cui Q, Li Z. A novel pyroptosis-related gene signature exhibits distinct immune cells infiltration landscape in Wilms' tumor. BMC Pediatr 2024; 24:279. [PMID: 38678251 PMCID: PMC11055250 DOI: 10.1186/s12887-024-04731-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 03/31/2024] [Indexed: 04/29/2024] Open
Abstract
BACKGROUND Wilms' tumor (WT) is the most common renal tumor in childhood. Pyroptosis, a type of inflammation-characterized and immune-related programmed cell death, has been extensively studied in multiple tumors. In the current study, we aim to construct a pyroptosis-related gene signature for predicting the prognosis of Wilms' tumor. METHODS We acquired RNA-seq data from TARGET kidney tumor projects for constructing a gene signature, and snRNA-seq data from GEO database for validating signature-constructing genes. Pyroptosis-related genes (PRGs) were collected from three online databases. We constructed the gene signature by Lasso Cox regression and then established a nomogram. Underlying mechanisms by which gene signature is related to overall survival states of patients were explored by immune cell infiltration analysis, differential expression analysis, and functional enrichment analysis. RESULTS A pyroptosis-related gene signature was constructed with 14 PRGs, which has a moderate to high predicting capacity with 1-, 3-, and 5-year area under the curve (AUC) values of 0.78, 0.80, and 0.83, respectively. A prognosis-predicting nomogram was established by gender, stage, and risk score. Tumor-infiltrating immune cells were quantified by seven algorithms, and the expression of CD8( +) T cells, B cells, Th2 cells, dendritic cells, and type 2 macrophages are positively or negatively correlated with risk score. Two single nuclear RNA-seq samples of different histology were harnessed for validation. The distribution of signature genes was identified in various cell types. CONCLUSIONS We have established a pyroptosis-related 14-gene signature in WT. Moreover, the inherent roles of immune cells (CD8( +) T cells, B cells, Th2 cells, dendritic cells, and type 2 macrophages), functions of differentially expressed genes (tissue/organ development and intercellular communication), and status of signaling pathways (proteoglycans in cancer, signaling pathways regulating pluripotent of stem cells, and Wnt signaling pathway) have been elucidated, which might be employed as therapeutic targets in the future.
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Affiliation(s)
- Yujun Guo
- Department of Pediatric Surgery, The Sixth Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.998 Aiying Street, Harbin, Heilongjiang, 150027, China
| | - Wenjun Lu
- Department of Pediatric Surgery, The Sixth Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.998 Aiying Street, Harbin, Heilongjiang, 150027, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, 310024, China
- Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, 310024, China
- Laboratory of Systems Immunology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, 310024, China
| | - Ze'nan Zhang
- Department of Pediatric Surgery, The Sixth Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.998 Aiying Street, Harbin, Heilongjiang, 150027, China
| | - Hengchen Liu
- Department of Colorectal Surgery and Oncology (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province, China), The Second Affiliated Hospital of Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, Zhejiang, 310022, China
| | - Aodan Zhang
- Department of Pediatric Surgery, The Sixth Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.998 Aiying Street, Harbin, Heilongjiang, 150027, China
- Department of Pediatric Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.246 Xuefu Road, Harbin, Heilongjiang, 150000, China
| | - Tingting Zhang
- Psychology and Health Management Center, Harbin Medical University, No.157 Baojian Road, Harbin, Heilongjiang, 150081, China
| | - Yang Wu
- Department of Pediatric Surgery, The Sixth Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.998 Aiying Street, Harbin, Heilongjiang, 150027, China
- Department of Pediatric Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.246 Xuefu Road, Harbin, Heilongjiang, 150000, China
| | - Xiangqi Li
- Department of Pediatric Surgery, The Sixth Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.998 Aiying Street, Harbin, Heilongjiang, 150027, China
- Department of Pediatric Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.246 Xuefu Road, Harbin, Heilongjiang, 150000, China
| | - Shulong Yang
- Department of Pediatric Surgery, The Sixth Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.998 Aiying Street, Harbin, Heilongjiang, 150027, China
- Department of Pediatric Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.246 Xuefu Road, Harbin, Heilongjiang, 150000, China
| | - Qingbo Cui
- Department of Pediatric Surgery, The Sixth Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.998 Aiying Street, Harbin, Heilongjiang, 150027, China.
- Department of Pediatric Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.246 Xuefu Road, Harbin, Heilongjiang, 150000, China.
| | - Zhaozhu Li
- Department of Pediatric Surgery, The Sixth Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.998 Aiying Street, Harbin, Heilongjiang, 150027, China.
- Department of Pediatric Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, No.246 Xuefu Road, Harbin, Heilongjiang, 150000, China.
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Zhu C, Xu S, Jiang R, Yu Y, Bian J, Zou Z. The gasdermin family: emerging therapeutic targets in diseases. Signal Transduct Target Ther 2024; 9:87. [PMID: 38584157 PMCID: PMC10999458 DOI: 10.1038/s41392-024-01801-8] [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: 01/15/2024] [Revised: 03/03/2024] [Accepted: 03/05/2024] [Indexed: 04/09/2024] Open
Abstract
The gasdermin (GSDM) family has garnered significant attention for its pivotal role in immunity and disease as a key player in pyroptosis. This recently characterized class of pore-forming effector proteins is pivotal in orchestrating processes such as membrane permeabilization, pyroptosis, and the follow-up inflammatory response, which are crucial self-defense mechanisms against irritants and infections. GSDMs have been implicated in a range of diseases including, but not limited to, sepsis, viral infections, and cancer, either through involvement in pyroptosis or independently of this process. The regulation of GSDM-mediated pyroptosis is gaining recognition as a promising therapeutic strategy for the treatment of various diseases. Current strategies for inhibiting GSDMD primarily involve binding to GSDMD, blocking GSDMD cleavage or inhibiting GSDMD-N-terminal (NT) oligomerization, albeit with some off-target effects. In this review, we delve into the cutting-edge understanding of the interplay between GSDMs and pyroptosis, elucidate the activation mechanisms of GSDMs, explore their associations with a range of diseases, and discuss recent advancements and potential strategies for developing GSDMD inhibitors.
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Affiliation(s)
- Chenglong Zhu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
- School of Anesthesiology, Naval Medical University, Shanghai, 200433, China
| | - Sheng Xu
- National Key Laboratory of Immunity & Inflammation, Naval Medical University, Shanghai, 200433, China
| | - Ruoyu Jiang
- School of Anesthesiology, Naval Medical University, Shanghai, 200433, China
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Naval Medical University, Shanghai, 200433, China
| | - Yizhi Yu
- National Key Laboratory of Immunity & Inflammation, Naval Medical University, Shanghai, 200433, China.
| | - Jinjun Bian
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
| | - Zui Zou
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
- School of Anesthesiology, Naval Medical University, Shanghai, 200433, China.
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Ernst C, Andreassen PR, Giger GH, Nguyen BD, Gäbelein CG, Guillaume-Gentil O, Fattinger SA, Sellin ME, Hardt WD, Vorholt JA. Direct Salmonella injection into enteroid cells allows the study of host-pathogen interactions in the cytosol with high spatiotemporal resolution. PLoS Biol 2024; 22:e3002597. [PMID: 38684033 PMCID: PMC11057982 DOI: 10.1371/journal.pbio.3002597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 03/21/2024] [Indexed: 05/02/2024] Open
Abstract
Intestinal epithelial cells (IECs) play pivotal roles in nutrient uptake and in the protection against gut microorganisms. However, certain enteric pathogens, such as Salmonella enterica serovar Typhimurium (S. Tm), can invade IECs by employing flagella and type III secretion systems (T3SSs) with cognate effector proteins and exploit IECs as a replicative niche. Detection of flagella or T3SS proteins by IECs results in rapid host cell responses, i.e., the activation of inflammasomes. Here, we introduce a single-cell manipulation technology based on fluidic force microscopy (FluidFM) that enables direct bacteria delivery into the cytosol of single IECs within a murine enteroid monolayer. This approach allows to specifically study pathogen-host cell interactions in the cytosol uncoupled from preceding events such as docking, initiation of uptake, or vacuole escape. Consistent with current understanding, we show using a live-cell inflammasome reporter that exposure of the IEC cytosol to S. Tm induces NAIP/NLRC4 inflammasomes via its known ligands flagellin and T3SS rod and needle. Injected S. Tm mutants devoid of these invasion-relevant ligands were able to grow in the cytosol of IECs despite the absence of T3SS functions, suggesting that, in the absence of NAIP/NLRC4 inflammasome activation and the ensuing cell death, no effector-mediated host cell manipulation is required to render the epithelial cytosol growth-permissive for S. Tm. Overall, the experimental system to introduce S. Tm into single enteroid cells enables investigations into the molecular basis governing host-pathogen interactions in the cytosol with high spatiotemporal resolution.
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Affiliation(s)
- Chantal Ernst
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | | | - Gabriel H. Giger
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Bidong D. Nguyen
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | | | | | - Stefan A. Fattinger
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Mikael E. Sellin
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Wolf-Dietrich Hardt
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Julia A. Vorholt
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
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Shao JJ, Li WF, Sun JF, Zhuang ZS, Min JL, Long XH, Wu GJ, Xu HW, Liang G. Britannin as a novel NLRP3 inhibitor, suppresses inflammasome activation in macrophages and alleviates NLRP3-related diseases in mice. Acta Pharmacol Sin 2024; 45:803-814. [PMID: 38172305 PMCID: PMC10943196 DOI: 10.1038/s41401-023-01212-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024]
Abstract
Overactivation of the NLRP3 inflammasomes induces production of pro-inflammatory cytokines and drives pathological processes. Pharmacological inhibition of NLRP3 is an explicit strategy for the treatment of inflammatory diseases. Thus far no drug specifically targeting NLRP3 has been approved by the FDA for clinical use. This study was aimed to discover novel NLRP3 inhibitors that could suppress NLRP3-mediated pyroptosis. We screened 95 natural products from our in-house library for their inhibitory activity on IL-1β secretion in LPS + ATP-challenged BMDMs, found that Britannin exerted the most potent inhibitory effect with an IC50 value of 3.630 µM. We showed that Britannin (1, 5, 10 µM) dose-dependently inhibited secretion of the cleaved Caspase-1 (p20) and the mature IL-1β, and suppressed NLRP3-mediated pyroptosis in both murine and human macrophages. We demonstrated that Britannin specifically inhibited the activation step of NLRP3 inflammasome in BMDMs via interrupting the assembly step, especially the interaction between NLRP3 and NEK7. We revealed that Britannin directly bound to NLRP3 NACHT domain at Arg335 and Gly271. Moreover, Britannin suppressed NLRP3 activation in an ATPase-independent way, suggesting it as a lead compound for design and development of novel NLRP3 inhibitors. In mouse models of MSU-induced gouty arthritis and LPS-induced acute lung injury (ALI), administration of Britannin (20 mg/kg, i.p.) significantly alleviated NLRP3-mediated inflammation; the therapeutic effects of Britannin were dismissed by NLRP3 knockout. In conclusion, Britannin is an effective natural NLRP3 inhibitor and a potential lead compound for the development of drugs targeting NLRP3.
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Affiliation(s)
- Jing-Jing Shao
- Department of Cardiology and Medical Research Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325035, China
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Wei-Feng Li
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Jin-Feng Sun
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, 311399, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, School of Pharmaceutical Sciences, Yanbian University, Yanji, 133002, China
| | - Zai-Shou Zhuang
- Affiliated Cangnan Hospital, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Ju-Lian Min
- Department of Cardiology and Medical Research Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325035, China
| | - Xiao-Hong Long
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Gao-Jun Wu
- Department of Cardiology and Medical Research Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325035, China
| | - Hao-Wen Xu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China.
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, 311399, China.
| | - Guang Liang
- Department of Cardiology and Medical Research Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325035, China.
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, 311399, China.
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Shao S, Sun Z, Chu M, Chen J, Cao T, Swindell WR, Bai Y, Li Q, Ma J, Zhu Z, Schuler A, Helfrich Y, Billi AC, Li Z, Hao J, Xiao C, Dang E, Gudjonsson JE, Wang G. Formylpeptide receptor 1 contributes to epidermal barrier dysfunction-induced skin inflammation through NOD-like receptor C4-dependent keratinocyte activation. Br J Dermatol 2024; 190:536-548. [PMID: 37979162 DOI: 10.1093/bjd/ljad455] [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: 07/11/2023] [Revised: 10/17/2023] [Accepted: 11/05/2023] [Indexed: 11/20/2023]
Abstract
BACKGROUND Skin barrier dysfunction may both initiate and aggravate skin inflammation. However, the mechanisms involved in the inflammation process remain largely unknown. OBJECTIVES We sought to determine how skin barrier dysfunction enhances skin inflammation and molecular mechanisms. METHODS Skin barrier defect mice were established by tape stripping or topical use of acetone on wildtype mice, or filaggrin deficiency. RNA-Seq was employed to analyse the differentially expressed genes in mice with skin barrier defects. Primary human keratinocytes were transfected with formylpeptide receptor (FPR)1 or protein kinase R-like endoplasmic reticulum (ER) kinase (PERK) small interfering RNA to examine the effects of these gene targets. The expressions of inflammasome NOD-like receptor (NLR)C4, epidermal barrier genes and inflammatory mediators were evaluated. RESULTS Mechanical (tape stripping), chemical (acetone) or genetic (filaggrin deficiency) barrier disruption in mice amplified the expression of proinflammatory genes, with transcriptomic profiling revealing overexpression of formylpeptide receptor (Fpr1) in the epidermis. Treatment with the FPR1 agonist fMLP in keratinocytes upregulated the expression of the NLRC4 inflammasome and increased interleukin-1β secretion through modulation of ER stress via the PERK-eIF2α-C/EBP homologous protein pathway. The activation of the FPR1-NLRC4 axis was also observed in skin specimens from old healthy individuals with skin barrier defect or elderly mice. Conversely, topical administration with a FPR1 antagonist, or Nlrc4 silencing, led to the normalization of barrier dysfunction and alleviation of inflammatory skin responses in vivo. CONCLUSIONS In summary, our findings show that the FPR1-NLRC4 inflammasome axis is activated upon skin barrier disruption and may explain exaggerated inflammatory responses that are observed in disease states characterized by epidermal dysfunction. Pharmacological inhibition of FPR1 or NLRC4 represents a potential therapeutic target.
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Affiliation(s)
- Shuai Shao
- Department of Dermatology, Xijing Hospital
| | | | | | | | - Tianyu Cao
- Department of Dermatology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shannxi, 710032, China
| | - William R Swindell
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Yaxing Bai
- Department of Dermatology, Xijing Hospital
| | | | - Jingyi Ma
- Department of Dermatology, Xijing Hospital
| | | | - Andrew Schuler
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yolanda Helfrich
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Allison C Billi
- Department of Dermatology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Zhiguo Li
- Department of Dermatology, Xijing Hospital
| | | | | | - Erle Dang
- Department of Dermatology, Xijing Hospital
| | | | - Gang Wang
- Department of Dermatology, Xijing Hospital
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Tsukalov I, Sánchez-Cerrillo I, Rajas O, Avalos E, Iturricastillo G, Esparcia L, Buzón MJ, Genescà M, Scagnetti C, Popova O, Martin-Cófreces N, Calvet-Mirabent M, Marcos-Jimenez A, Martínez-Fleta P, Delgado-Arévalo C, de Los Santos I, Muñoz-Calleja C, Calzada MJ, González Álvaro I, Palacios-Calvo J, Alfranca A, Ancochea J, Sánchez-Madrid F, Martin-Gayo E. NFκB and NLRP3/NLRC4 inflammasomes regulate differentiation, activation and functional properties of monocytes in response to distinct SARS-CoV-2 proteins. Nat Commun 2024; 15:2100. [PMID: 38453949 PMCID: PMC10920883 DOI: 10.1038/s41467-024-46322-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 02/22/2024] [Indexed: 03/09/2024] Open
Abstract
Increased recruitment of transitional and non-classical monocytes in the lung during SARS-CoV-2 infection is associated with COVID-19 severity. However, whether specific innate sensors mediate the activation or differentiation of monocytes in response to different SARS-CoV-2 proteins remain poorly characterized. Here, we show that SARS-CoV-2 Spike 1 but not nucleoprotein induce differentiation of monocytes into transitional or non-classical subsets from both peripheral blood and COVID-19 bronchoalveolar lavage samples in a NFκB-dependent manner, but this process does not require inflammasome activation. However, NLRP3 and NLRC4 differentially regulated CD86 expression in monocytes in response to Spike 1 and Nucleoprotein, respectively. Moreover, monocytes exposed to Spike 1 induce significantly higher proportions of Th1 and Th17 CD4 + T cells. In contrast, monocytes exposed to Nucleoprotein reduce the degranulation of CD8 + T cells from severe COVID-19 patients. Our study provides insights in the differential impact of innate sensors in regulating monocytes in response to different SARS-CoV-2 proteins, which might be useful to better understand COVID-19 immunopathology and identify therapeutic targets.
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Affiliation(s)
- Ilya Tsukalov
- Medicine Faculty, Universidad Autónoma de Madrid, Madrid, Spain
| | - Ildefonso Sánchez-Cerrillo
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
- CIBER Infectious Diseases (CIBERINFECC), Instituto de Salud Carlos III, Madrid, Spain
| | - Olga Rajas
- Pneumology Unit from Hospital Universitario La Princesa, Madrid, Spain
| | - Elena Avalos
- Pneumology Unit from Hospital Universitario La Princesa, Madrid, Spain
| | | | - Laura Esparcia
- Medicine Faculty, Universidad Autónoma de Madrid, Madrid, Spain
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
| | - María José Buzón
- Infectious Diseases Department, Institut de Recerca Hospital Univesritari Vall d'Hebrón (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Meritxell Genescà
- Infectious Diseases Department, Institut de Recerca Hospital Univesritari Vall d'Hebrón (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Camila Scagnetti
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
| | - Olga Popova
- Medicine Faculty, Universidad Autónoma de Madrid, Madrid, Spain
| | - Noa Martin-Cófreces
- Medicine Faculty, Universidad Autónoma de Madrid, Madrid, Spain
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
| | - Marta Calvet-Mirabent
- Medicine Faculty, Universidad Autónoma de Madrid, Madrid, Spain
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
| | - Ana Marcos-Jimenez
- Medicine Faculty, Universidad Autónoma de Madrid, Madrid, Spain
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
| | - Pedro Martínez-Fleta
- Medicine Faculty, Universidad Autónoma de Madrid, Madrid, Spain
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
| | - Cristina Delgado-Arévalo
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
| | - Ignacio de Los Santos
- CIBER Infectious Diseases (CIBERINFECC), Instituto de Salud Carlos III, Madrid, Spain
- Infectious Diseases Unit from Hospital Universitario La Princesa, Madrid, Spain
| | - Cecilia Muñoz-Calleja
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
- CIBER Infectious Diseases (CIBERINFECC), Instituto de Salud Carlos III, Madrid, Spain
| | - María José Calzada
- Medicine Faculty, Universidad Autónoma de Madrid, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Isidoro González Álvaro
- Rheumatology Department from Hospital Universitario La Princesa. Instituto de Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
| | - José Palacios-Calvo
- Department of Pathology, Hospital Universitario Ramón y Cajal. Instituto Ramón y Cajal de Investigaciones Sanitarias (IRYCIS), Universidad de Alcalá. Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Arantzazu Alfranca
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
- CIBER Cardiovascular, Instituto de Salud Carlos III, Madrid, Spain
| | - Julio Ancochea
- Pneumology Unit from Hospital Universitario La Princesa, Madrid, Spain
| | - Francisco Sánchez-Madrid
- Medicine Faculty, Universidad Autónoma de Madrid, Madrid, Spain
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain
- CIBER Cardiovascular, Instituto de Salud Carlos III, Madrid, Spain
| | - Enrique Martin-Gayo
- Medicine Faculty, Universidad Autónoma de Madrid, Madrid, Spain.
- Immunology Unit from Hospital Universitario La Princesa, Instituto Investigación Sanitaria-Princesa IIS-IP, Madrid, Spain.
- CIBER Infectious Diseases (CIBERINFECC), Instituto de Salud Carlos III, Madrid, Spain.
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Zhang T, Pang C, Xu M, Zhao Q, Hu Z, Jiang X, Guo M. The role of immune system in atherosclerosis: Molecular mechanisms, controversies, and future possibilities. Hum Immunol 2024; 85:110765. [PMID: 38369442 DOI: 10.1016/j.humimm.2024.110765] [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: 07/17/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/20/2024]
Abstract
Numerous cardiovascular disorders have atherosclerosis as their pathological underpinning. Numerous studies have demonstrated that, with the aid of pattern recognition receptors, cytokines, and immunoglobulins, innate immunity, represented by monocytes/macrophages, and adaptive immunity, primarily T/B cells, play a critical role in controlling inflammation and abnormal lipid metabolism in atherosclerosis. Additionally, the finding of numerous complement components in atherosclerotic plaques suggests yet again how heavily the immune system controls atherosclerosis. Therefore, it is essential to have a thorough grasp of how the immune system contributes to atherosclerosis. The specific molecular mechanisms involved in the activation of immune cells and immune molecules in atherosclerosis, the controversy surrounding some immune cells in atherosclerosis, and the limitations of extrapolating from relevant animal models to humans were all carefully reviewed in this review from the three perspectives of innate immunity, adaptive immunity, and complement system. This could provide fresh possibilities for atherosclerosis research and treatment in the future.
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Affiliation(s)
- Tianle Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Chenxu Pang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Mengxin Xu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Qianqian Zhao
- School of Medical Technology, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Zhijie Hu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China
| | - Xijuan Jiang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China.
| | - Maojuan Guo
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, PR China.
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Venkatramanan M, Nalini E. Regulation of virulence in Chromobacterium violaceum and strategies to combat it. Front Microbiol 2024; 15:1303595. [PMID: 38328423 PMCID: PMC10847564 DOI: 10.3389/fmicb.2024.1303595] [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: 09/28/2023] [Accepted: 01/08/2024] [Indexed: 02/09/2024] Open
Abstract
Chromobacterium is a rod-shaped, Gram-negative, facultatively anaerobic bacteria with a cosmopolitan distribution. Just about 160 Chromobacterium violaceum incidents have been reported globally, but then once infected, it has the ability to cause deadly septicemia, and infections in the lungs, liver, brain, spleen, and lymphatic systems that might lead to death. C. violaceum produces and utilizes violacein to kill bacteria that compete with it in an ecological niche. Violacein is a hydrophobic bisindole that is delivered through an efficient transport route termed outer membrane vesicles (OMVs) through the aqueous environment. OMVs are small, spherical segments detached from the outer membrane of Gram-negative bacteria. C. violaceum OMV secretions are controlled by a mechanism called the quorum sensing system CviI/CviR, which enables cell-to-cell communication between them and regulation of various virulence factors such as biofilm formation, and violacein biosynthesis. Another virulence factor bacterial type 3 secretion system (T3SS) is divided into two types: Cpi-1 and Cpi-2. Cpi-1's needle and rod effector proteins are perhaps recognized by NAIP receptors in humans and mice, activating the NLRC4 inflammasome cascade, effectively clearing spleen infections via pyroptosis, and cytotoxicity mediated by IL-18-driven Natural killer (NK) cells in the liver. In this paper, we attempt to interrelate quorum-controlled biofilm formation, violacein production, violacein delivery by OMVs and T3SS effector protein production and host mediated immunological effects against the Cpi1 of T3SS. We suggest a research path with natural bioactive molecule like palmitic acid that can act as an anti-quorum agent by reducing the expression of virulence factors as well as an immunomodulatory agent that can augment innate immune defense by hyperactivation of NLRC4 inflammasome hence dramatically purge C. violaceum infections.
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48
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Munshi S, Alarbi A, Zheng H, Kuplicki R, Burrows K, Figueroa-Hall L, Victor T, Aupperle R, Khalsa S, Paulus M, Teague TK, Savitz J. Increased expression of ER stress, inflammasome activation, and mitochondrial biogenesis-related genes in peripheral blood mononuclear cells in major depressive disorder. RESEARCH SQUARE 2024:rs.3.rs-3564760. [PMID: 38260352 PMCID: PMC10802690 DOI: 10.21203/rs.3.rs-3564760/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
A subset of major depressive disorder (MDD) is characterized by immune system dysfunction, but the intracellular origin of these immune changes remains unclear. Here we tested the hypothesis that abnormalities in the endoplasmic reticulum (ER) stress, inflammasome activity and mitochondrial biogenesis contribute to the development of systemic inflammation in MDD. RT-qPCR was used to measure mRNA expression of key organellar genes from peripheral blood mononuclear cells (PBMCs) isolated from 186 MDD and 67 healthy control (HC) subjects. The comparative CT (2-ΔΔCT) method was applied to quantify mRNA expression using GAPDH as the reference gene. After controlling for age, sex, BMI, and medication status using linear regression models, expression of the inflammasome (NLRC4 and NLRP3) and the ER stress (XBP1u, XBP1s, and ATF4) genes was found to be significantly increased in the MDD versus the HC group. After excluding outliers, expression of the inflammasome genes was no longer statistically significant but expression of the ER stress genes (XBP1u, XBP1s, and ATF4) and the mitochondrial biogenesis gene, MFN2, was significantly increased in the MDD group. ASC and MFN2 were positively correlated with serum C-reactive protein concentrations. The altered expression of inflammasome activation, ER stress, and mitochondrial biogenesis pathway components suggest that dysfunction of these organelles may play a role in the pathogenesis of MDD.
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Wang Y, Gao Y, Su X, Hao Y, Zhang Y, Yang R. LNCGM1082 in Gut Epithelial Cells Promotes Expulsion of Infected Epithelial Cells and Release of IL-18. Immunohorizons 2024; 8:35-46. [PMID: 38189743 PMCID: PMC10835649 DOI: 10.4049/immunohorizons.2300110] [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: 12/05/2023] [Accepted: 12/11/2023] [Indexed: 01/09/2024] Open
Abstract
Inflammasome NLRC4 (NLR family CARD domain containing 4) can protect mucosal barriers such as intestine from invading bacterial pathogens. However, it was incompletely clear how NLRC4 was activated in intestinal epithelial cells. In this study, we demonstrated that LNCGM1082 could mediate the activation of NLRC4 via binding NLRC4 with protein kinase C (PKC)δ. LNCGM1082 knockout (KO) mice had reduced resistance against Salmonella Typhimurium infection, as well as impaired expulsion of infected gut epithelial cells and release of IL-18 upon exposure to S. Typhimurium. Similar to NLRC4 KO and PKCδ knockdown gut organoids, there also was impaired expulsion of gut epithelial cells and release of IL-18 in LNCGM1082 KO gut organoids. Furthermore, there also was reduced activation of caspase-1 and caspase-8 in these LNCGM1082 KO, NLRC4 KO, and PKCδ knockdown gut organoids upon exposure to S. Typhimurium. Our results show that LNCGM1082 in the ICEs plays a critical role in mediating activation of NLRC4 through binding NLRC4 and PKCδ and promoting expulsion of infected epithelial cells and release of IL-18 upon exposure to bacteria such as S. Typhimurium.
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Affiliation(s)
- Ya Wang
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Yunhuan Gao
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Xiaomin Su
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Yang Hao
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Yuan Zhang
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Rongcun Yang
- Translational Medicine Institute, Tianjin Union Medical Center of Nankai University, Tianjin, China; Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China; and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
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50
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Cai H, Lv M, Wang T. PANoptosis in cancer, the triangle of cell death. Cancer Med 2023; 12:22206-22223. [PMID: 38069556 PMCID: PMC10757109 DOI: 10.1002/cam4.6803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/08/2023] [Accepted: 11/27/2023] [Indexed: 12/31/2023] Open
Abstract
BACKGROUND PANoptosis is a novel form of programmed cell death (PCD) found in 2019 that is regulated by the PANoptosome. PANoptosis combines essential features of pyroptosis, apoptosis, and necroptosis, forming a "death triangle" of cells. While apoptosis, pyroptosis, and necroptosis have been extensively studied for their roles in human inflammatory diseases and many other clinical conditions, historically they were considered as independent processes. However, emerging evidence indicates that these PCDs exhibit cross talk and interactions, resulting in the development of the concept of PANoptosis. METHODS In this review, we offer a concise summary of the fundamental mechanisms of apoptosis, pyroptosis, and necroptosis. We subsequently introduce the notion of PANoptosis and detail the assembly mechanism of the PANoptosome complex which is responsible for inducing cell death. We also describe some regulatory networks of PANoptosis. RESULTS PANoptosis now has been associated with various human diseases including cancer. Although the exact function of PANoptosis in each tumor is not fully understood, it represents a prospective avenue for cancer therapy, offering promise for advancements in cancer therapy. CONCLUSIONS In the future, in-depth study of PANoptosis will continue to help us in understanding the fundamental processes underlying cell death and provide scientific support for cancer research.
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Affiliation(s)
- Hantao Cai
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - Mingming Lv
- Department of Breast, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Tingting Wang
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Division of Immunology, Medical School, Nanjing University, Nanjing, China
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