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den Hartigh AB, Loomis WP, Anderson MJ, Frølund B, Fink SL. Muscimol inhibits plasma membrane rupture and ninjurin-1 oligomerization during pyroptosis. Commun Biol 2023; 6:1010. [PMID: 37798443 PMCID: PMC10556065 DOI: 10.1038/s42003-023-05354-4] [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: 01/03/2023] [Accepted: 09/13/2023] [Indexed: 10/07/2023] Open
Abstract
Pyroptosis is a cell death process that causes inflammation and contributes to numerous diseases. Pyroptosis is mediated by caspase-1 family proteases that cleave the pore-forming protein gasdermin D, causing plasma membrane rupture and release of pathogenic cellular contents. We previously identified muscimol as a small molecule that prevents plasma membrane rupture during pyroptosis via an unidentified mechanism. Here, we show that muscimol has reversible activity to prevent cellular lysis without affecting earlier pyroptotic events. Although muscimol is a well-characterized agonist for neuronal GABAA receptors, muscimol protection is not altered by GABAA receptor antagonists or recapitulated by other GABAA agonists, suggesting that muscimol acts via a novel mechanism. We find that muscimol blocks oligomerization of ninjurin-1, which is required for plasma membrane rupture downstream of gasdermin D pore formation. Our structure-activity relationship studies reveal distinct molecular determinants defining inhibition of pyroptotic lysis compared to GABAA binding. In addition, we demonstrate that muscimol reduces lethality during LPS-induced septic shock. Together, these findings demonstrate that ninjurin-1-mediated plasma membrane rupture can be pharmacologically modulated and pave the way toward identification of therapeutic strategies for pathologic conditions associated with pyroptosis.
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Affiliation(s)
- Andreas B den Hartigh
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Wendy P Loomis
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Marisa J Anderson
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Bente Frølund
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Susan L Fink
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA.
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2
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Diarimalala RO, Wei Y, Hu D, Hu K. Inflammasomes during SARS-CoV-2 infection and development of their corresponding inhibitors. Front Cell Infect Microbiol 2023; 13:1218039. [PMID: 37360532 PMCID: PMC10288989 DOI: 10.3389/fcimb.2023.1218039] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023] Open
Abstract
Corona Virus Disease 2019 (COVID-19) continues to be a burden for human health since its outbreak in Wuhan, China in December 2019. Recently, the emergence of new variants of concerns (VOCs) is challenging for vaccines and drugs efficiency. In severe cases, SARS-CoV-2 provokes inappropriate hyperinflammatory immune responses leading to acute respiratory distress syndrome (ARDS) and even death. This process is regulated by inflammasomes which are activated after binding of the viral spike (S) protein to cellular angiotensin-converting enzyme 2 (ACE2) receptor and triggers innate immune responses. Therefore, the formation of "cytokines storm" leads to tissue damage and organ failure. NOD-like receptor family pyrin domain containing 3 (NLRP3) is the best studied inflammasome known to be activated during SARS-CoV-2 infection. However, some studies suggest that SARS-CoV-2 infection is associated with other inflammasomes as well; such as NLRP1, absent in melanoma-2 (AIM-2), caspase-4 and -8 which were mostly found during dsRNA virus or bacteria infection. Multiple inflammasome inhibitors that exist for other non-infectious diseases have the potential to be used to treat severe SARS-CoV-2 complications. Some of them have showed quite encouraging results during pre- and clinical trials. Nevertheless, further studies are in need for the understanding and targeting of SARS-Cov-2-induced inflammasomes; mostly an update of its role during the new VOCs infection is necessary. Hence, this review highlights all reported inflammasomes involved in SARS-CoV-2 infection and their potential inhibitors including NLRP3- and Gasdermin D (GSDMD)-inhibitors. Further strategies such as immunomodulators and siRNA are also discussed. As highly related to COVID-19 severe cases, developing inflammasome inhibitors holds a promise to treat severe COVID-19 syndrome effectively and reduce mortality.
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3
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Jin X, Ma Y, Liu D, Huang Y. Role of pyroptosis in the pathogenesis and treatment of diseases. MedComm (Beijing) 2023; 4:e249. [PMID: 37125240 PMCID: PMC10130418 DOI: 10.1002/mco2.249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 02/16/2023] [Accepted: 03/07/2023] [Indexed: 05/02/2023] Open
Abstract
Programmed cell death (PCD) is regarded as a pathological form of cell death with an intracellular program mediated, which plays a pivotal role in maintaining homeostasis and embryonic development. Pyroptosis is a new paradigm of PCD, which has received increasing attention due to its close association with immunity and disease. Pyroptosis is a form of inflammatory cell death mediated by gasdermin that promotes the release of proinflammatory cytokines and contents induced by inflammasome activation. Recently, increasing evidence in studies shows that pyroptosis has a crucial role in inflammatory conditions like cardiovascular diseases (CVDs), cancer, neurological diseases (NDs), and metabolic diseases (MDs), suggesting that targeting cell death is a potential intervention for the treatment of these inflammatory diseases. Based on this, the review aims to identify the molecular mechanisms and signaling pathways related to pyroptosis activation and summarizes the current insights into the complicated relationship between pyroptosis and multiple human inflammatory diseases (CVDs, cancer, NDs, and MDs). We also discuss a promising novel strategy and method for treating these inflammatory diseases by targeting pyroptosis and focus on the pyroptosis pathway application in clinics.
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Affiliation(s)
- Xiangyu Jin
- Wuxi School of MedicineJiangnan UniversityJiangsuChina
| | - Yinchu Ma
- Wuxi School of MedicineJiangnan UniversityJiangsuChina
| | - Didi Liu
- Wuxi School of MedicineJiangnan UniversityJiangsuChina
| | - Yi Huang
- Wuxi School of MedicineJiangnan UniversityJiangsuChina
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4
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Zijie W, Anan J, Hongmei X, Xiaofan Y, Shaoru Z, Xinyue Q. Exploring the potential mechanism of Fritiliariae Irrhosae Bulbus on ischemic stroke based on network pharmacology and experimental validation. Front Pharmacol 2022; 13:1049586. [DOI: 10.3389/fphar.2022.1049586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/02/2022] [Indexed: 11/18/2022] Open
Abstract
Objective: To study the potential targets and molecular mechanisms of Fritiliariae Irrhosae Bulbus (FIB) in the treatment of ischemic strokes based on a network pharmacology strategy, with a combination of molecular docking and animal experiments.Methods: The active components and targets of FIB were screened by TCMSP database and TCMIP database, and the related targets of ischemic strokes were screened by GeneCards, OMIM, CTD, and DrugBank, then the intersection targets of the two were taken. The protein interaction network was constructed by STRING, the PPI network diagram was drawn by using Cytoscape software, and the key targets of FIB treatment of ischemic strokes were analyzed by MCODE. The DAVID database was used for GO and KEGG enrichment analysis, and the potential pathway of FIB against ischemic strokes was obtained. Molecular docking was performed by using AutoDock Tools 1.5.6 software. Finally, a mouse model of ischemic stroke was established, and the results of network pharmacology were verified by in vivo experiments. Realtime Polymerase Chain Reaction was used to detect the expression levels of relevant mRNAs in the mouse brain tissue. Western blot was used to detect the expression levels of related proteins in the mouse brain tissue.Results: 13 kinds of active components of FIB were screened, 31 targets were found in the intersection of FIB and ischemic strokes, 10 key targets were obtained by MCODE analysis, 236 biological processes were involved in GO enrichment analysis, and key targets of KEGG enrichment analysis were mainly concentrated in Neuroactive light receptor interaction, Calcium signaling pathway, Cholinergic synapse, Hepatitis B, Apoptosis—multiple specifications, Pathways in cancer and other significantly related pathways. There was good binding activity between the screened main active components and target proteins when molecular docking was performed. Animal experiments showed that the infarct volume of brain tissue in the FIB treatment group was considerably reduced. RT-qPCR and the results of Western Blot showed that FIB could inhibit the expression of active-Caspase3, HSP90AA1, phosphorylated C-JUN, and COX2.Conclusion: Based on network pharmacology, the effect of FIB in the treatment of ischemic strokes was discussed through the multi-component-multi-target-multi-pathway. The therapeutic effect and potential mechanisms of FIB on ischemic strokes were preliminarily explored, which provided a ground work for further researches on the pharmacodynamic material basis, mechanism of action and clinical application.
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5
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Biological Effects and Mechanisms of Caspases in Early Brain Injury after Subarachnoid Hemorrhage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3345637. [PMID: 35847583 PMCID: PMC9277153 DOI: 10.1155/2022/3345637] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 06/22/2022] [Indexed: 12/12/2022]
Abstract
Caspases are an evolutionarily conserved family of proteases responsible for mediating and initiating cell death signals. In the past, the dysregulated activation of caspases was reported to play diverse but equally essential roles in neurodegenerative diseases, such as brain injury and neuroinflammatory diseases. A subarachnoid hemorrhage (SAH) is a traumatic event that is either immediately lethal or induces a high risk of stroke and neurological deficits. Currently, the prognosis of SAH after treatment is not ideal. Early brain injury (EBI) is considered one of the main factors contributing to the poor prognosis of SAH. The mechanisms of EBI are complex and associated with oxidative stress, neuroinflammation, blood-brain barrier disruption, and cell death. Based on mounting evidence, caspases are involved in neuronal apoptosis or death, endothelial cell apoptosis, and increased inflammatory cytokine-induced by apoptosis, pyroptosis, and necroptosis in the initial stages after SAH. Caspases can simultaneously mediate multiple death modes and regulate each other. Caspase inhibitors (including XIAP, VX-765, and Z-VAD-FMK) play an essential role in ameliorating EBI after SAH. In this review, we explore the related pathways mediated by caspases and their reciprocal regulation patterns after SAH. Furthermore, we focus on the extensive crosstalk of caspases as a potential area of research on therapeutic strategies for treating EBI after SAH.
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6
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Zhang A, Zhang Z, Liu Y, Lenahan C, Xu H, Jiang J, Yuan L, Wang L, Xu Y, Chen S, Fang Y, Zhang J. The Role of Caspase Family in Acute Brain Injury: The Potential Therapeutic Targets in the Future. Curr Neuropharmacol 2022; 20:1194-1211. [PMID: 34766893 PMCID: PMC9886824 DOI: 10.2174/1570159x19666211111121146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 10/30/2021] [Accepted: 11/03/2021] [Indexed: 11/22/2022] Open
Abstract
The caspase family is commonly involved in the pathophysiology of acute brain injury (ABI) through complex apoptotic, pyroptotic, and inflammatory pathways. Current translational strategies for caspase modulation in ABI primarily focus on caspase inhibitors. Because there are no caspase-inhibiting drugs approved for clinical use on the market, the development of caspase inhibitors remains an attractive challenge for researchers and clinicians. Therefore, we conducted the present review with the aim of providing a comprehensive introduction of caspases in ABI. In this review, we summarized the available evidence and potential mechanisms regarding the biological function of caspases. We also reviewed the therapeutic effects of caspase inhibitors on ABI and its subsequent complications. However, various important issues remain unclear, prompting further verification of the efficacy and safety regarding clinical application of caspase inhibitors. We believe that our work will be helpful to further understand the critical role of the caspase family and will provide novel therapeutic potential for ABI treatment.
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Affiliation(s)
- Anke Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China; ,These authors contributed equally to this work.
| | - Zeyu Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China; ,These authors contributed equally to this work.
| | - Yibo Liu
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China; ,These authors contributed equally to this work.
| | - Cameron Lenahan
- Burrell College of Osteopathic Medicine, Las Cruces, New Mexico, USA;
| | - Houshi Xu
- Department of Neurosurgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China;
| | | | | | | | - Yuanzhi Xu
- Department of Neurosurgery, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China;
| | - Sheng Chen
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China;
| | - Yuanjian Fang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China; ,Address correspondence to these authors at the Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China; E-mail:
| | - Jianmin Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China; ,Address correspondence to these authors at the Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China; E-mail:
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7
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A small molecule inhibitor of caspase-1 inhibits NLRP3 inflammasome activation and pyroptosis to alleviate gouty inflammation. Immunol Lett 2022; 244:28-39. [DOI: 10.1016/j.imlet.2022.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 12/11/2022]
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8
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Ulgheri F, Spanu P, Deligia F, Loriga G, Fuggetta MP, de Haan I, Chandgudge A, Groves M, Domling A. Design, synthesis and biological evaluation of 1,5-disubstituted α-amino tetrazole derivatives as non-covalent inflammasome-caspase-1 complex inhibitors with potential application against immune and inflammatory disorders. Eur J Med Chem 2022; 229:114002. [PMID: 34823899 PMCID: PMC8598261 DOI: 10.1016/j.ejmech.2021.114002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/05/2021] [Accepted: 11/14/2021] [Indexed: 02/08/2023]
Abstract
Compounds targeting the inflammasome-caspase-1 pathway could be of use for the treatment of inflammation and inflammatory diseases. Previous caspase-1 inhibitors were in great majority covalent inhibitors and failed in clinical trials. Using a mixed modelling, computational screening, synthesis and in vitro testing approach, we identified a novel class of non-covalent caspase-1 non cytotoxic inhibitors which are able to inhibit IL-1β release in activated macrophages in the low μM range, in line with the best activities observed for the known covalent inhibitors. Our compounds could form the basis of further optimization towards potent drugs for the treatment of inflammation and inflammatory disorders including also dysregulated inflammation in Covid 19.
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Affiliation(s)
- Fausta Ulgheri
- Institute of Biomolecular Chemistry, National Research Council (CNR), Trav. La Crucca 3, 07100, Sassari, Italy,Corresponding author
| | - Pietro Spanu
- Institute of Biomolecular Chemistry, National Research Council (CNR), Trav. La Crucca 3, 07100, Sassari, Italy,Corresponding author
| | - Francesco Deligia
- Institute of Biomolecular Chemistry, National Research Council (CNR), Trav. La Crucca 3, 07100, Sassari, Italy
| | - Giovanni Loriga
- Institute of Biomolecular Chemistry, National Research Council (CNR), Trav. La Crucca 3, 07100, Sassari, Italy
| | - Maria Pia Fuggetta
- Institute of Traslational Pharmacology, National Research Council (CNR), Via Fosso Del Cavaliere 100, 00133, Roma, Italy
| | - Iris de Haan
- Department of Drug Design, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Ajay Chandgudge
- Department of Drug Design, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Matthew Groves
- Department of Drug Design, University of Groningen, 9713 AV Groningen, the Netherlands
| | - Alexander Domling
- Department of Drug Design, University of Groningen, 9713 AV Groningen, the Netherlands,Corresponding author
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9
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Wu Y, Wang Z, Du Q, Zhu Z, Chen T, Xue Y, Wang Y, Zeng Q, Shen C, Jiang C, Liu L, Zhu H, Liu Q. Pharmacological Effects and Underlying Mechanisms of Licorice-Derived Flavonoids. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:9523071. [PMID: 35082907 PMCID: PMC8786487 DOI: 10.1155/2022/9523071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 12/17/2021] [Indexed: 12/12/2022]
Abstract
Glycyrrhizae Radix et Rhizoma is the most frequently prescribed natural medicine in China and has been used for more than 2,000 years. The flavonoids of licorice have garnered considerable attention in recent decades due to their structural diversity and myriad pharmacological effects, especially as novel therapeutic agents against inflammation and cancer. Although many articles have been published to summarize different pharmacological activities of licorice in recent years, the systematic summary for flavonoid components is not comprehensive. Therefore, in this review, we summarized the pharmacological and mechanistic data from recent researches on licorice flavonoids and their bioactive components.
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Affiliation(s)
- Yufan Wu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zhuxian Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Qunqun Du
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zhaoming Zhu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Tingting Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Yaqi Xue
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Yuan Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Quanfu Zeng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Chunyan Shen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Cuiping Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Li Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Hongxia Zhu
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510315, China
| | - Qiang Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
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10
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Diao X, Cui Q, Tian N, Zhou Z, Xiang W, Jiang Y, Deng J, Liao H, Lin X, Li Q, Liao R. Hemorrhage-Induced Sphingosine Kinase 1 Contributes to Ferroptosis-Mediated Secondary Brain Injury in Intracerebral Hemorrhage. Mol Neurobiol 2022; 59:1381-1397. [PMID: 34993846 DOI: 10.1007/s12035-021-02605-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 10/15/2021] [Indexed: 12/18/2022]
Abstract
The pathogenic processes of brain injury after intracerebral hemorrhage (ICH) have not yet been fully elucidated. Increasing evidence suggests that ferroptosis activation aggravates injury after ICH, but the underlying mechanism remains unclear. Sphingosine kinase 1 (Sphk1) is a key enzyme in the regulation of sphingosine metabolism involved in the ferroptosis pathway, but its role in ICH needs clarification. In this study, transcriptional changes in ICH patients were assessed by microarray data, exposing Sphk1 as a highly upregulated gene during ICH. Furthermore, Sphk1 chemical inhibitors and siRNA were used to inhibit ICH-induced Sphk1 upregulation in in vivo and in vitro models, showing that Sphk1 inhibition after protects against ferroptosis and attenuates secondary brain injury and cell death. Mechanistically, this study unveiled that sphingosine kinase 1/sphingosine 1-phosphate/extracellular-regulated protein kinases/phosphorylated extracellular-regulated protein kinases (Sphk1/S1p/ERK/p-ERK) pathway is responsible for regulation of ferroptosis leading to secondary brain injury and cell death following ICH. Collectively, this study demonstrates that ferroptosis is closely associated with ICH, and that Sphk1 has a critical role in this lethal process. These results suggest a novel unique and effective therapeutic approach for ICH prevention and treatment.
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Affiliation(s)
- Xiaojun Diao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410000, China
- Guangxi Clinical Research Center for Neurological Diseases, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
| | - Qi Cui
- Laboratory of Neuroscience, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
- Department of Neurology, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
| | - Ning Tian
- Guangxi Clinical Research Center for Neurological Diseases, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
- Laboratory of Neuroscience, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
| | - Zixian Zhou
- Guangxi Clinical Research Center for Neurological Diseases, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
- Laboratory of Neuroscience, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541004, China
| | - Wenjing Xiang
- Guangxi Clinical Research Center for Neurological Diseases, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
- Laboratory of Neuroscience, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541004, China
| | - Yanlin Jiang
- Department of Pharmacology, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
| | - Jungang Deng
- Department of Pharmacology, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
| | - Hongzhan Liao
- Department of Neurosurgery, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
| | - Xiaohui Lin
- Department of Neurology, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China
| | - Qinghua Li
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410000, China.
- Guangxi Clinical Research Center for Neurological Diseases, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China.
- Laboratory of Neuroscience, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China.
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541004, China.
| | - Rujia Liao
- Guangxi Clinical Research Center for Neurological Diseases, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China.
- Laboratory of Neuroscience, Affiliated Hospital of Guilin Medical University, Guilin Medical University, Guilin, 541004, China.
- Guangxi Key Laboratory of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, 541004, China.
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11
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Chaintreuil P, Laplane L, Esnault F, Ghesquier V, Savy C, Furstoss N, Arcangeli ML, Cluzeau T, Robert G, Droin N, Solary E, Auberger P, Jacquel A. Reprogramming monocyte-derived macrophages through caspase inhibition. Oncoimmunology 2021; 11:2015859. [PMID: 35251769 PMCID: PMC8893037 DOI: 10.1080/2162402x.2021.2015859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
| | - Lucie Laplane
- INSERM U1187, Gustave Roussy Cancer Center, Villejuif, France
- CNRS U8590, Institut d’Histoire et Philosophie des Sciences et des Techniques, Université Paris I Panthéon-Sorbonne, Paris, France
| | | | | | - Coline Savy
- INSERM U1065, C3M, Université Côte d’Azur, Nice, France
| | | | | | - Thomas Cluzeau
- INSERM U1065, C3M, Université Côte d’Azur, Nice, France
- Département d’Hématologie Clinique, Chu de Nice, Nice, France
| | | | - Nathalie Droin
- INSERM U1187, Gustave Roussy Cancer Center, Villejuif, France
- Faculté de Médecine, Université Paris-Sud, Le Kremlin-Bicêtre, France
| | - Eric Solary
- INSERM U1187, Gustave Roussy Cancer Center, Villejuif, France
- Faculté de Médecine, Université Paris-Sud, Le Kremlin-Bicêtre, France
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12
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De Novo Molecular Design of Caspase-6 Inhibitors by a GRU-Based Recurrent Neural Network Combined with a Transfer Learning Approach. Pharmaceuticals (Basel) 2021; 14:ph14121249. [PMID: 34959651 PMCID: PMC8706867 DOI: 10.3390/ph14121249] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/21/2021] [Accepted: 11/24/2021] [Indexed: 12/31/2022] Open
Abstract
Due to their potential in the treatment of neurodegenerative diseases, caspase-6 inhibitors have attracted widespread attention. However, the existing caspase-6 inhibitors showed more or less inevitable deficiencies that restrict their clinical development and applications. Therefore, there is an urgent need to develop novel caspase-6 candidate inhibitors. Herein, a gated recurrent unit (GRU)-based recurrent neural network (RNN) combined with transfer learning was used to build a molecular generative model of caspase-6 inhibitors. The results showed that the GRU-based RNN model can accurately learn the SMILES grammars of about 2.4 million chemical molecules including ionic and isomeric compounds and can generate potential caspase-6 inhibitors after transfer learning of the known 433 caspase-6 inhibitors. Based on the novel molecules derived from the molecular generative model, an optimal logistic regression model and Surflex-dock were employed for predicting and ranking the inhibitory activities. According to the prediction results, three potential caspase-6 inhibitors with different scaffolds were selected as the promising candidates for further research. In general, this paper provides an efficient combinational strategy for de novo molecular design of caspase-6 inhibitors.
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13
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Ulrich C, Kneser L, Fiedler R, Beckert J, Wildgrube S, Seibert E, Fick S, Schäfer C, Markau S, Trojanowicz B, Girndt M. Pyroptosis: A Common Feature of Immune Cells of Haemodialysis Patients. Toxins (Basel) 2021; 13:toxins13120839. [PMID: 34941677 PMCID: PMC8704801 DOI: 10.3390/toxins13120839] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 12/02/2022] Open
Abstract
NLRP-3 inflammasome activation can result in interleukin-1β (IL-1β) release and inflammatory cell death (pyroptosis). Caspase-1 is able to trigger both processes. However, other caspases, caspase-4, -5 and -8, are believed to initiate pyroptosis without affecting IL-1 secretion. In this study, we evaluated two cardiovascular risk groups, haemodialysis patients (HD) and patients with intact kidney function but high blood pressure (BP), to analyse the mechanisms driving pyroptosis. Twenty HD were age-, gender- and diabetes-matched to BP. We found a common pyroptotic pattern in both patient groups, at which pyroptosis rates but not IL-1 β levels were significantly higher in monocytes (HD vs. BP: p < 0.05), granulocytes (p < 0.01) and lymphocytes (p < 0.01) of HD patients. As uremic toxins are drivers of inflammation and regulated cell death, we applied a monocyte- and macrophage-like THP-1 model system to demonstrate that the protein-bound uremic toxin indoxyl sulfate (IS) is an inducer of pyroptotic cell death, particularly engaging caspase-4/caspase-5 and to a lesser extent caspase-8 and caspase-1. These data suggest that the uremic toxin IS can mediate pyroptosis in HD patients and the inflammatory caspase-4 and/or caspase-5 contribute to pyroptosis rates to a higher extent in comparison to caspase-1.
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Affiliation(s)
- Christof Ulrich
- Department of Internal Medicine II, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany; (R.F.); (J.B.); (E.S.); (S.F.); (C.S.); (S.M.); (M.G.)
- Correspondence: ; Tel.: +49-345-557-3386
| | - Leonie Kneser
- Agaplesion Ev. Klinikum Schaumburg, 57392 Oberkirchen, Germany;
| | - Roman Fiedler
- Department of Internal Medicine II, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany; (R.F.); (J.B.); (E.S.); (S.F.); (C.S.); (S.M.); (M.G.)
| | - Julia Beckert
- Department of Internal Medicine II, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany; (R.F.); (J.B.); (E.S.); (S.F.); (C.S.); (S.M.); (M.G.)
| | | | - Eric Seibert
- Department of Internal Medicine II, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany; (R.F.); (J.B.); (E.S.); (S.F.); (C.S.); (S.M.); (M.G.)
- Nephrologisches Zentrum Villingen-Schwenningen, 78054 Villingen-Schwenningen, Germany
| | - Sylvia Fick
- Department of Internal Medicine II, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany; (R.F.); (J.B.); (E.S.); (S.F.); (C.S.); (S.M.); (M.G.)
| | - Christoph Schäfer
- Department of Internal Medicine II, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany; (R.F.); (J.B.); (E.S.); (S.F.); (C.S.); (S.M.); (M.G.)
| | - Silke Markau
- Department of Internal Medicine II, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany; (R.F.); (J.B.); (E.S.); (S.F.); (C.S.); (S.M.); (M.G.)
| | - Bogusz Trojanowicz
- Department of Visceral, Vascular and Endocrine Surgery, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany;
| | - Matthias Girndt
- Department of Internal Medicine II, Martin Luther University Halle-Wittenberg, 06120 Halle, Germany; (R.F.); (J.B.); (E.S.); (S.F.); (C.S.); (S.M.); (M.G.)
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14
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Wu J, Raman A, Coffey NJ, Sheng X, Wahba J, Seasock MJ, Ma Z, Beckerman P, Laczkó D, Palmer MB, Kopp JB, Kuo JJ, Pullen SS, Boustany-Kari CM, Linkermann A, Susztak K. The key role of NLRP3 and STING in APOL1-associated podocytopathy. J Clin Invest 2021; 131:136329. [PMID: 34651582 DOI: 10.1172/jci136329] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 09/02/2021] [Indexed: 12/13/2022] Open
Abstract
Coding variants in apolipoprotein L1 (APOL1), termed G1 and G2, can explain most excess kidney disease risk in African Americans; however, the molecular pathways of APOL1-induced kidney dysfunction remain poorly understood. Here, we report that expression of G2 APOL1 in the podocytes of Nphs1rtTA/TRE-G2APOL1 (G2APOL1) mice leads to early activation of the cytosolic nucleotide sensor, stimulator of interferon genes (STING), and the NLR family pyrin domain-containing 3 (NLRP3) inflammasome. STING and NLRP3 expression was increased in podocytes from patients with high-risk APOL1 genotypes, and expression of APOL1 correlated with caspase-1 and gasdermin D (GSDMD) levels. To demonstrate the role of NLRP3 and STING in APOL1-associated kidney disease, we generated transgenic mice with the G2 APOL1 risk variant and genetic deletion of Nlrp3 (G2APOL1/Nlrp3 KO), Gsdmd (G2APOL1/Gsdmd KO), and STING (G2APOL1/STING KO). Knockout mice displayed marked reduction in albuminuria, azotemia, and kidney fibrosis compared with G2APOL1 mice. To evaluate the therapeutic potential of targeting NLRP3, GSDMD, and STING, we treated mice with MCC950, disulfiram, and C176, potent and selective inhibitors of NLRP3, GSDMD, and STING, respectively. G2APOL1 mice treated with MCC950, disulfiram, and C176 showed lower albuminuria and improved kidney function even when inhibitor treatment was initiated after the development of albuminuria.
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Affiliation(s)
- Junnan Wu
- Department of Medicine, Renal-Electrolyte and Hypertension Division, and Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Archana Raman
- Department of Medicine, Renal-Electrolyte and Hypertension Division, and Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Nathan J Coffey
- Department of Medicine, Renal-Electrolyte and Hypertension Division, and Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Xin Sheng
- Department of Medicine, Renal-Electrolyte and Hypertension Division, and Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Joseph Wahba
- Department of Medicine, Renal-Electrolyte and Hypertension Division, and Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Matthew J Seasock
- Department of Medicine, Renal-Electrolyte and Hypertension Division, and Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ziyuan Ma
- Department of Medicine, Renal-Electrolyte and Hypertension Division, and Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Pazit Beckerman
- Department of Medicine, Renal-Electrolyte and Hypertension Division, and Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Dorottya Laczkó
- Department of Medicine, Renal-Electrolyte and Hypertension Division, and Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Matthew B Palmer
- Department of Pathology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jeffrey B Kopp
- Kidney Disease Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Jay J Kuo
- Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA
| | - Steven S Pullen
- Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut, USA
| | | | - Andreas Linkermann
- Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany
| | - Katalin Susztak
- Department of Medicine, Renal-Electrolyte and Hypertension Division, and Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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15
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Dhani S, Zhao Y, Zhivotovsky B. A long way to go: caspase inhibitors in clinical use. Cell Death Dis 2021; 12:949. [PMID: 34654807 PMCID: PMC8519909 DOI: 10.1038/s41419-021-04240-3] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/15/2021] [Accepted: 09/28/2021] [Indexed: 12/19/2022]
Abstract
Caspases are an evolutionary conserved family of cysteine-dependent proteases that are involved in many vital cellular processes including apoptosis, proliferation, differentiation and inflammatory response. Dysregulation of caspase-mediated apoptosis and inflammation has been linked to the pathogenesis of various diseases such as inflammatory diseases, neurological disorders, metabolic diseases, and cancer. Multiple caspase inhibitors have been designed and synthesized as a potential therapeutic tool for the treatment of cell death-related pathologies. However, only a few have progressed to clinical trials because of the consistent challenges faced amongst the different types of caspase inhibitors used for the treatment of the various pathologies, namely an inadequate efficacy, poor target specificity, or adverse side effects. Importantly, a large proportion of this failure lies in the lack of understanding various caspase functions. To overcome the current challenges, further studies on understanding caspase function in a disease model is a fundamental requirement to effectively develop their inhibitors as a treatment for the different pathologies. Therefore, the present review focuses on the descriptive properties and characteristics of caspase inhibitors known to date, and their therapeutic application in animal and clinical studies. In addition, a brief discussion on the achievements, and current challenges faced, are presented in support to providing more perspectives for further development of successful therapeutic caspase inhibitors for various diseases.
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Affiliation(s)
- Shanel Dhani
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 17177, Stockholm, Sweden
| | - Yun Zhao
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 17177, Stockholm, Sweden
| | - Boris Zhivotovsky
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 17177, Stockholm, Sweden.
- Faculty of Medicine, MV Lomonosov Moscow State University, 119991, Moscow, Russia.
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16
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Huang S, Mei H, Lu L, Kuang Z, Heng Y, Xu L, Liang X, Qiu M, Pan X. Conformational transitions of caspase-6 in substrate-induced activation process explored by perturbation-response scanning combined with targeted molecular dynamics. Comput Struct Biotechnol J 2021; 19:4156-4164. [PMID: 34527189 PMCID: PMC8342898 DOI: 10.1016/j.csbj.2021.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 07/17/2021] [Accepted: 07/23/2021] [Indexed: 11/23/2022] Open
Abstract
Caspase-6 participates in a series of neurodegenerative pathways, and has aroused widespread attentions as a promising molecular target for the treatment of neurodegeneration. Caspase-6 is a homodimer with 6 central-stranded β-sheets and 5 α-helices in each monomer. Previous crystallographic studies suggested that the 60′s, 90′s and 130′s helices of caspase-6 undergo a distinctive conformational transition upon substrate binding. Although the caspase-6 structures in apo and active states have been determined, the conformational transition process between the two states remains poorly understood. In this work, perturbation-response scanning (PRS) combined with targeted molecular dynamics (TMD) simulations was employed to unravel the atomistic mechanism of the dynamic conformational transitions underlying the substrate-induced activation process of caspase-6. The results showed that the conformational transition of caspase-6 from apo to active states is mainly characterized by structural rearrangements of the substrate-binding site as well as the conformational changes of 60′s and 130′s extended helices. The H-bond interactions between L1, 130′s helix and 90′s helix are proved to be key determinant factors for substrate-induced conformational transition. These findings provide valuable insights into the activation mechanism of caspase-6 as well as the molecular design of caspase-6 inhibitors.
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Affiliation(s)
- Shuheng Huang
- Key Laboratory of Biorheological Science and Technology (Ministry of Education), College of Bioengineering, Chongqing University, Chongqing 400045, China
| | - Hu Mei
- Key Laboratory of Biorheological Science and Technology (Ministry of Education), College of Bioengineering, Chongqing University, Chongqing 400045, China
| | - Laichun Lu
- Key Laboratory of Biorheological Science and Technology (Ministry of Education), College of Bioengineering, Chongqing University, Chongqing 400045, China
| | - Zuyin Kuang
- Key Laboratory of Biorheological Science and Technology (Ministry of Education), College of Bioengineering, Chongqing University, Chongqing 400045, China
| | - Yu Heng
- Key Laboratory of Biorheological Science and Technology (Ministry of Education), College of Bioengineering, Chongqing University, Chongqing 400045, China
| | - Lei Xu
- Key Laboratory of Biorheological Science and Technology (Ministry of Education), College of Bioengineering, Chongqing University, Chongqing 400045, China
| | - Xiaoqi Liang
- Key Laboratory of Biorheological Science and Technology (Ministry of Education), College of Bioengineering, Chongqing University, Chongqing 400045, China
| | - Minyao Qiu
- Key Laboratory of Biorheological Science and Technology (Ministry of Education), College of Bioengineering, Chongqing University, Chongqing 400045, China
| | - Xianchao Pan
- Department of Medicinal Chemistry, College of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
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17
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Das B, Sarkar C, Rawat VS, Kalita D, Deka S, Agnihotri A. Promise of the NLRP3 Inflammasome Inhibitors in In Vivo Disease Models. Molecules 2021; 26:molecules26164996. [PMID: 34443594 PMCID: PMC8399941 DOI: 10.3390/molecules26164996] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/28/2021] [Accepted: 08/10/2021] [Indexed: 12/26/2022] Open
Abstract
Nucleotide-binding oligomerization domain NOD-like receptors (NLRs) are conserved cytosolic pattern recognition receptors (PRRs) that track the intracellular milieu for the existence of infection, disease-causing microbes, as well as metabolic distresses. The NLRP3 inflammasome agglomerates are consequent to sensing a wide spectrum of pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs). Certain members of the NLR family have been documented to lump into multimolecular conglomerates called inflammasomes, which are inherently linked to stimulation of the cysteine protease caspase-1. Following activation, caspase-1 severs the proinflammatory cytokines interleukin (IL)-1β and IL-18 to their biologically active forms, with consequent commencement of caspase-1-associated pyroptosis. This type of cell death by pyroptosis epitomizes a leading pathway of inflammation. Accumulating scientific documentation has recorded overstimulation of NLRP3 (NOD-like receptor protein 3) inflammasome involvement in a wide array of inflammatory conditions. IL-1β is an archetypic inflammatory cytokine implicated in multiple types of inflammatory maladies. Approaches to impede IL-1β’s actions are possible, and their therapeutic effects have been clinically demonstrated; nevertheless, such strategies are associated with certain constraints. For instance, treatments that focus on systemically negating IL-1β (i.e., anakinra, rilonacept, and canakinumab) have been reported to result in an escalated peril of infections. Therefore, given the therapeutic promise of an NLRP3 inhibitor, the concerted escalated venture of the scientific sorority in the advancement of small molecules focusing on direct NLRP3 inflammasome inhibition is quite predictable.
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Affiliation(s)
- Biswadeep Das
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India;
- Correspondence: or ; Tel./Fax: +91-135-2462975
| | - Chayna Sarkar
- Department of Clinical Pharmacology & Therapeutics, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Mawdiangdiang, Shillong 793018, Meghalaya, India;
| | - Vikram Singh Rawat
- Department of Psychiatry, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India;
| | - Deepjyoti Kalita
- Department of Microbiology, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India; (D.K.); (S.D.)
| | - Sangeeta Deka
- Department of Microbiology, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India; (D.K.); (S.D.)
| | - Akash Agnihotri
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India;
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18
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Ma XY, Zhang M, Fang G, Cheng CJ, Wang MK, Han YM, Hou XT, Hao EW, Hou YY, Bai G. Ursolic acid reduces hepatocellular apoptosis and alleviates alcohol-induced liver injury via irreversible inhibition of CASP3 in vivo. Acta Pharmacol Sin 2021; 42:1101-1110. [PMID: 33028983 PMCID: PMC8209164 DOI: 10.1038/s41401-020-00534-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 09/10/2020] [Indexed: 02/07/2023] Open
Abstract
Alcoholic liver disease (ALD) is one of the pathogenic factors of chronic liver disease with the highest clinical morbidity worldwide. Ursolic acid (UA), a pentacyclic terpenoid carboxylic acid, has shown many health benefits including antioxidative, anti-inflammatory, anticancer, and hepatoprotective activities. We previously found that UA was metabolized in vivo into epoxy-modified UA containing an epoxy electrophilic group and had the potential to react with nucleophilic groups. In this study we prepared an alkynyl-modified UA (AM-UA) probe for tracing and capturing the target protein of UA from liver in mice, then investigated the mode by which UA bound to its target in vivo. By conducting proteome identification and bioinformatics analysis, we identified caspase-3 (CASP3) as the primary target protein of UA associated with liver protection. Molecule docking analysis showed that the epoxy group of the UA metabolite reacted with Cys-163 of CASP3, forming a covalent bond with CASP3. The binding mode of the UA metabolites (UA, CM-UA, and EM-UA) was verified by biochemical evaluation, demonstrating that the epoxy group produced by metabolism played an important role in the inhibition of CASP3. In alcohol-treated HepG2 cells, pretreatment with the UA metabolite (10 μM) irreversibly inhibited CASP3 activities, and subsequently decreased the cleavage of PARP and cell apoptosis. Finally, pre-administration of UA (20-80 mg· kg-1 per day, ig, for 1 week) dose-dependently alleviated alcohol-induced liver injury in mice mainly via the inhibition of CASP3. In conclusion, this study demonstrates that UA is a valuable lead compound for the treatment of ALD.
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Affiliation(s)
- Xiao-Yao Ma
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300000, China
| | - Man Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300000, China
| | - Ge Fang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300000, China
| | - Chuan-Jing Cheng
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300000, China
| | - Mu-Kuo Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300000, China
| | - Yi-Man Han
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300000, China
| | - Xiao-Tao Hou
- Guangxi Collaborative Innovation Center for Functional Ingredients Study of Agricultural Residues, Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning, 530200, China
| | - Er-Wei Hao
- Guangxi Collaborative Innovation Center for Functional Ingredients Study of Agricultural Residues, Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning, 530200, China
| | - Yuan-Yuan Hou
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300000, China.
| | - Gang Bai
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, 300000, China
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19
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Li WH, Yang YL, Cheng X, Liu M, Zhang SS, Wang YH, Du GH. Baicalein attenuates caspase-independent cells death via inhibiting PARP-1 activation and AIF nuclear translocation in cerebral ischemia/reperfusion rats. Apoptosis 2021; 25:354-369. [PMID: 32338336 DOI: 10.1007/s10495-020-01600-w] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
It is reported that baicalein can activate PI3K/AKT pathway, inhibit caspase activation and reduce cerebral infarct volume in middle cerebral artery occlusion (MCAO) rats. However, a caspase-independent mechanism initiated by poly (ADP-ribose) polymerase-1 (PARP-1) activation has been reported to make more contribution to cells death after ischemic stroke. In the present study, we established a cerebral ischemia/reperfusion (I/R) rat model through middle cerebral artery occlusion following reperfusion to investigate the mechanisms of ischemic tissue recovery following baicalein treatment. The data showed that baicalein treatment at dose of 100 mg/kg for 7 days significantly inhibited the release of cytokines, activation of PARP-1, nuclear translocation of apoptosis-inducing factor (AIF) and macrophage migration inhibitory factor (MIF) in cerebral I/R rats, therefore decreased cerebral infarct volume and neurological scores. Then, we further investigated the signal transduction mechanisms of ischemic tissue protection by baicalein in vitro. Following oxygen and glucose deprivation (OGD) in SH-SY5Y cells, the mitochondrial AIF was translocated into nucleus after 12 h. The co-immunoprecipitation analysis showed that the interaction between AIF and MIF was activated by OGD and subsequently resulted in MIF nuclear translocation. Also, the baicalein inhibited apoptosis, reduced oxidative stress, protected mitochondrial function and restored mitochondrial membrane potential in OGD cells. The results obtained from both in vivo and in vitro study demonstrated the PARP-1/AIF pathway involved in mechanisms of baicalein to protect the cerebral tissues from ischemic injury.
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Affiliation(s)
- Wei-Han Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.,Beijing Key Laboratory of Drug Target Identification and New Drug Screening Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Ying-Lin Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.,Beijing Key Laboratory of Drug Target Identification and New Drug Screening Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Xiao Cheng
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.,Beijing Key Laboratory of Drug Target Identification and New Drug Screening Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Man Liu
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Shan-Shan Zhang
- Beijing Key Laboratory of Drug Target Identification and New Drug Screening Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Yue-Hua Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China. .,Beijing Key Laboratory of Drug Target Identification and New Drug Screening Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.
| | - Guan-Hua Du
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China. .,Beijing Key Laboratory of Drug Target Identification and New Drug Screening Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.
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20
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Morais PAB, Francisco CS, de Paula H, Ribeiro R, Eloy MA, Javarini CL, Neto ÁC, Júnior VL. Semisynthetic Triazoles as an Approach in the Discovery of Novel Lead Compounds. CURR ORG CHEM 2021. [DOI: 10.2174/1385272825666210126100227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Historically, medicinal chemistry has been concerned with the approach of organic
chemistry for new drug synthesis. Considering the fruitful collections of new molecular entities,
the dedicated efforts for medicinal chemistry are rewarding. Planning and search for new
and applicable pharmacologic therapies involve the altruistic nature of the scientists. Since
the 19th century, notoriously applying isolated and characterized plant-derived compounds in
modern drug discovery and various stages of clinical development highlight its viability and
significance. Natural products influence a broad range of biological processes, covering transcription,
translation, and post-translational modification, being effective modulators of most
basic cellular processes. The research of new chemical entities through “click chemistry”
continuously opens up a map for the remarkable exploration of chemical space towards leading
natural products optimization by structure-activity relationship. Finally, in this review, we expect to gather a
broad knowledge involving triazolic natural product derivatives, synthetic routes, structures, and their biological activities.
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Affiliation(s)
- Pedro Alves Bezerra Morais
- Centro de Ciencias Exatas, Naturais e da Saude, Universidade Federal do Espirito Santo, 29500000, Alegre, ES, Brazil
| | - Carla Santana Francisco
- Programa de Pos-Graduacao em Quimica, Universidade Federal do Espirito Santo, 29075910, Vitória, ES, Brazil
| | - Heberth de Paula
- Centro de Ciencias Exatas, Naturais e da Saude, Universidade Federal do Espirito Santo, 29500000, Alegre, ES, Brazil
| | - Rayssa Ribeiro
- Programa de Pos- Graduacao em Agroquimica, Universidade Federal do Espirito Santo, 29500000, Alegre, ES, Brazil
| | - Mariana Alves Eloy
- Programa de Pos- Graduacao em Agroquimica, Universidade Federal do Espirito Santo, 29500000, Alegre, ES, Brazil
| | - Clara Lirian Javarini
- Programa de Pos-Graduacao em Quimica, Universidade Federal do Espirito Santo, 29075910, Vitória, ES, Brazil
| | - Álvaro Cunha Neto
- Programa de Pos-Graduacao em Quimica, Universidade Federal do Espirito Santo, 29075910, Vitória, ES, Brazil
| | - Valdemar Lacerda Júnior
- Programa de Pos-Graduacao em Quimica, Universidade Federal do Espirito Santo, 29075910, Vitória, ES, Brazil
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21
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Zhang L, Xiao F, Zhang J, Wang X, Ying J, Wei G, Chen S, Huang X, Yu W, Liu X, Zheng Q, Xu G, Yu S, Hua F. Dexmedetomidine Mitigated NLRP3-Mediated Neuroinflammation via the Ubiquitin-Autophagy Pathway to Improve Perioperative Neurocognitive Disorder in Mice. Front Pharmacol 2021; 12:646265. [PMID: 34079457 PMCID: PMC8165564 DOI: 10.3389/fphar.2021.646265] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 04/27/2021] [Indexed: 12/30/2022] Open
Abstract
Background: Surgery and anesthesia-induced perioperative neurocognitive disorder (PND) are closely related to NOD-like receptors (NLR) family, pyrin domain containing 3 (NLRP3) inflammasome microglia inflammatory response. Inhibiting the occurrence of neuroinflammation is an important treatment method to improve postoperative delirium. Fewer NLRP3-targeting molecules are currently available in the clinic to reduce the incidence of postoperative delirium. Dexmedetomidine (DEX), an α2 adrenergic receptor agonist has been shown to have antioxidant and anti-inflammatory activities. The present study showed that DEX reduced the production of cleaved caspase1 (CASP1) and destroyed the NLRP3–PYD And CARD Domain Containing (PYCARD)–CASP1 complex assembly, thereby reducing the secretion of IL-1β interleukin beta (IL-1β). DEX promoted the autophagy process of microglia and reduced NLRP3 expression. More interestingly, it promoted the ubiquitination and degradation of NLRP3. Thus, this study demonstrated that DEX reduced NLRP3-mediated inflammation through the activation of the ubiquitin-autophagy pathway. This study provided a new mechanism for treating PND using DEX. Methods: C57BL/6 mice were pre-administered DEX 3 days in advance, and an abdominal exploration model was used to establish a perioperative neurocognitive disorder model. The anti-inflammatory effect of DEX was explored in vivo by detecting NLRP3-CASP1/IL-1β protein expression and behavioral testing. Primary microglia were stimulated with lipopolysaccharide (LPS) and adenosine triphosphate (ATP) in vitro, the expression of CASP1 and IL-1β was detected in the supernatant of cells, and the expression of autophagy-related proteins microtubule-associated protein 1 light chain 3 beta (MAP1LC3B) and sequestosome 1 (SQSTM1) was examined in the cytoplasm. Meanwhile, Co-immunoprecipitation (Co-IP) was used to detect NLRP3 protein ubiquitination so as to clarify the new mechanism underlying the anti-inflammatory effect of DEX. Results: Pre-administration of DEX reduced the protein expression of NLRP3, CASP1, and IL-1β in the hippocampus of mice induced by surgery and also improved the impairment of learning and memory ability. At the same time, DEX also effectively relieved the decrease in spine density of the hippocampal brain induced by surgery. DEX decreased the cleaved CASP1 expression, blocked the assembly of NLRP3–PYCARD–CASP1 complex, and also reduced the secretion of mature IL-1β in vitro. Mechanically, it accelerated the degradation of NLRP3 inflammasome via the autophagy–ubiquitin pathway and reduced the green fluorescent protein/red fluorescent protein MAP1LC3B ratio, which was comparable to the effect when using the autophagy activator rapamycin (Rapa). Furthermore, it increased the ubiquitination of NLRP3 after LPS plus ATP stimulated microglia. Conclusion: DEX attenuated the hippocampal brain inflammation by promoting NLRP3 inflammasome degradation via the autophagy–ubiquitin pathway, thus improving cognitive impairment in mice.
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Affiliation(s)
- Lieliang Zhang
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Fan Xiao
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Jing Zhang
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Xifeng Wang
- Department of Anesthesiology, The First Affiliated Hosptial of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Jun Ying
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Gen Wei
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Shoulin Chen
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Xiangfei Huang
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Wen Yu
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Xing Liu
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Qingcui Zheng
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Guohai Xu
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Shuchun Yu
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Fuzhou Hua
- Department of Anesthesiology, The Second Affiliated Hosptial of Nanchang Univerisity, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
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22
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Kim YH, Hwang JS, Yoon IN, Lee JH, Lee J, Park KC, Seok H, Kim H. The insect peptide CopA3 blocks programmed cell death by directly binding caspases and inhibiting their proteolytic activation. Biochem Biophys Res Commun 2021; 547:82-88. [PMID: 33610044 DOI: 10.1016/j.bbrc.2021.01.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 01/28/2021] [Indexed: 11/29/2022]
Abstract
Caspases play essential roles in apoptotic processes, which is necessary for cellular homeostasis. However, over-activation of caspases and subsequent excessive apoptosis is considered a main cause of Parkinson's disease and liver diseases. Here, we found that the insect-derived peptide, CopA3, which has shown antiapoptotic effects in many apoptosis models, directly binds to caspases. The resulting complexes do not dissociate during denaturing polyacrylamide gel electrophoresis, as evidenced by a distinct shift in the migration of caspase reflecting an increase in their molecular weight. Surface plasmon resonance and experiment using cysteine-substituted mutants of CopA3 collectively revealed that binding of CopA3 to caspases is dependent on an internal cysteine residue. Notably, CopA3 binding significantly inhibited proteolytic activation of downstream caspases by upstream caspases. In summary, the demonstration that CopA3 directly binds to caspases and inhibits their activating cleavage suggests a possible therapeutic approach for treating human diseases resulting from uncontrolled apoptosis.
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Affiliation(s)
- Young Ha Kim
- Department of Life Science, College of Natural Science, Daejin University, Pocheon, Gyeonggido, 487-711, Republic of Korea
| | - Jae Sam Hwang
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Suwon, 441-707, Republic of Korea
| | - I Na Yoon
- Department of Life Science, College of Natural Science, Daejin University, Pocheon, Gyeonggido, 487-711, Republic of Korea
| | - Joon Ha Lee
- Department of Agricultural Biology, National Academy of Agricultural Science, RDA, Suwon, 441-707, Republic of Korea
| | - Junguee Lee
- Department of Pathology, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daeheung-ro 64, Jung-gu, Daejeon, 301-723, Republic of Korea
| | - Ki Cheol Park
- Clinical Research Institute, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Republic of Korea
| | - Heon Seok
- Korea Brain Bank, Korea Brain Research Institute, Daegu, 41062, Republic of Korea
| | - Ho Kim
- Department of Life Science, College of Natural Science, Daejin University, Pocheon, Gyeonggido, 487-711, Republic of Korea.
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23
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Jacotot É. [Caspase inhibition: From cellular biology and thanatology to potential clinical agents]. Med Sci (Paris) 2020; 36:1143-1154. [PMID: 33296631 DOI: 10.1051/medsci/2020222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Caspases are a family of cysteine proteases well known for their central roles during apoptosis and inflammation. They also intervene in non-apoptotic regulated cell death pathways and contribute to a large number of physiological mechanisms. The development of therapeutic approaches targeting caspases has generated strong industrial interest since the 1990s, prompting intense research on biological mechanisms, and the development of numerous synthetic inhibitors. Most of these inhibitors are derivatives of peptides or mimetics capable of interacting with the active site of caspases. However, the structural conservation between the different caspases is a challenge for the development of selective inhibitors. To date 5 caspase inhibitors, targeting either Caspase-1, -2 or multiple caspases, have been investigated in clinical settings, and there is still no marketing authorization. The Pan-caspase inhibitor emricasan reached clinical phase III and was proven to be safe but failed to demonstrate efficacy against NASH. Contrary to initial assumptions, selective Caspase-3 inhibitors have not reached the clinical level, while QPI-1007, a siRNA directed against Caspase-2, is currently undergoing a multicentric phase III clinical study for the treatment of ischemic optic neuropathies.
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Affiliation(s)
- Étienne Jacotot
- Inserm U1164, Sorbonne Université UMR 8256, équipe Stress neuronal et vieillissement (Neuronal Stress and Aging, NSA), Campus Pierre et Marie Curie, 7 quai Saint Bernard, 75005 Paris, France - Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Department of Pathology and Cell Biology, Columbia University, New York, Étas-Unis
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24
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Snyder AG, Hubbard NW, Messmer MN, Kofman SB, Hagan CE, Orozco SL, Chiang K, Daniels BP, Baker D, Oberst A. Intratumoral activation of the necroptotic pathway components RIPK1 and RIPK3 potentiates antitumor immunity. Sci Immunol 2020; 4:4/36/eaaw2004. [PMID: 31227597 DOI: 10.1126/sciimmunol.aaw2004] [Citation(s) in RCA: 233] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 04/24/2019] [Indexed: 12/13/2022]
Abstract
Although the signaling events that induce different forms of programmed cell death are well defined, the subsequent immune responses to dying cells in the context of cancer remain relatively unexplored. Necroptosis occurs downstream of the receptor-interacting protein kinases RIPK1 and RIPK3, whose activation leads to lytic cell death accompanied by de novo production of proinflammatory mediators. Here, we show that ectopic introduction of necroptotic cells to the tumor microenvironment promotes BATF3+ cDC1- and CD8+ leukocyte-dependent antitumor immunity accompanied by increased tumor antigen loading by tumor-associated antigen-presenting cells. Furthermore, we report the development of constitutively active forms of the necroptosis-inducing enzyme RIPK3 and show that delivery of a gene encoding this enzyme to tumor cells using adeno-associated viruses induces tumor cell necroptosis, which synergizes with immune checkpoint blockade to promote durable tumor clearance. These findings support a role for RIPK1/RIPK3 activation as a beneficial proximal target in the initiation of tumor immunity. Considering that successful tumor immunotherapy regimens will require the rational application of multiple treatment modalities, we propose that maximizing the immunogenicity of dying cells within the tumor microenvironment through specific activation of the necroptotic pathway represents a beneficial treatment approach that may warrant further clinical development.
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Affiliation(s)
- Annelise G Snyder
- Department of Immunology, University of Washington, Seattle, WA 98109, USA
| | - Nicholas W Hubbard
- Department of Immunology, University of Washington, Seattle, WA 98109, USA
| | - Michelle N Messmer
- Department of Immunology, University of Washington, Seattle, WA 98109, USA
| | - Sigal B Kofman
- Department of Immunology, University of Washington, Seattle, WA 98109, USA
| | - Cassidy E Hagan
- Department of Immunology, University of Washington, Seattle, WA 98109, USA
| | - Susana L Orozco
- Department of Immunology, University of Washington, Seattle, WA 98109, USA.,Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98109, USA
| | - Kristy Chiang
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98109, USA
| | - Brian P Daniels
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
| | - David Baker
- Institute for Protein Design, University of Washington, Seattle, WA 98109, USA
| | - Andrew Oberst
- Department of Immunology, University of Washington, Seattle, WA 98109, USA.
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25
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Boice A, Bouchier-Hayes L. Targeting apoptotic caspases in cancer. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118688. [PMID: 32087180 DOI: 10.1016/j.bbamcr.2020.118688] [Citation(s) in RCA: 152] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 01/20/2020] [Accepted: 02/15/2020] [Indexed: 12/30/2022]
Abstract
Members of the caspase family of proteases play essential roles in the initiation and execution of apoptosis. These caspases are divided into two groups: the initiator caspases (caspase-2, -8, -9 and -10), which are the first to be activated in response to a signal, and the executioner caspases (caspase-3, -6, and -7) that carry out the demolition phase of apoptosis. Many conventional cancer therapies induce apoptosis to remove the cancer cell by engaging these caspases indirectly. Newer therapeutic applications have been designed, including those that specifically activate individual caspases using gene therapy approaches and small molecules that repress natural inhibitors of caspases already present in the cell. For such approaches to have maximal clinical efficacy, emerging insights into non-apoptotic roles of these caspases need to be considered. This review will discuss the roles of caspases as safeguards against cancer in the context of the advantages and potential limitations of targeting apoptotic caspases for the treatment of cancer.
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Affiliation(s)
- Ashley Boice
- Department of Pediatrics, Division of Hematology-Oncology and Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA; William T. Shearer Center for Human Immunobiology, Texas Children's Hospital, Houston, TX 77030, USA
| | - Lisa Bouchier-Hayes
- Department of Pediatrics, Division of Hematology-Oncology and Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA; William T. Shearer Center for Human Immunobiology, Texas Children's Hospital, Houston, TX 77030, USA.
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26
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Wang J, Puel JL. Presbycusis: An Update on Cochlear Mechanisms and Therapies. J Clin Med 2020; 9:jcm9010218. [PMID: 31947524 PMCID: PMC7019248 DOI: 10.3390/jcm9010218] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/08/2020] [Accepted: 01/10/2020] [Indexed: 02/06/2023] Open
Abstract
Age-related hearing impairment (ARHI), also referred to as presbycusis, is the most common sensory impairment seen in the elderly. As our cochlea, the peripheral organ of hearing, ages, we tend to experience a decline in hearing and are at greater risk of cochlear sensory-neural cell degeneration and exacerbated age-related hearing impairments, e.g., gradual hearing loss, deterioration in speech comprehension (especially in noisy environments), difficulty in the localization sound sources, and ringing sensations in the ears. However, the aging process does not affect people uniformly; nor, in fact, does the aging process appear to be uniform even within an individual. Here, we outline recent research into chronological cochlear age in healthy people, and exacerbated hearing impairments during aging due to both extrinsic factors including noise and ototoxic medication, and intrinsic factors such as genetic predisposition, epigenetic factors, and aging. We review our current understanding of molecular pathways mediating ARHL and discuss recent discoveries in experimental hearing restoration and future prospects.
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Affiliation(s)
- Jing Wang
- INSERM U051, Institute for Neurosciences of Montpellier, Hôpital Saint Eloi-Bâtiment INM, 80, rue Augustin Fliche-BP 74103, 34091 Montpellier, France
- Montpellier Neuroscience Institute, University of Montpellier, 163 rue Auguste Broussonnet, 34090 Montpellier, France
- Correspondence: (J.W.); (J.-L.P.); Tel.: +33-499-63-60-48 (J.W.); +33-499-63-60-09 (J.-L.P.)
| | - Jean-Luc Puel
- INSERM U051, Institute for Neurosciences of Montpellier, Hôpital Saint Eloi-Bâtiment INM, 80, rue Augustin Fliche-BP 74103, 34091 Montpellier, France
- Montpellier Neuroscience Institute, University of Montpellier, 163 rue Auguste Broussonnet, 34090 Montpellier, France
- Correspondence: (J.W.); (J.-L.P.); Tel.: +33-499-63-60-48 (J.W.); +33-499-63-60-09 (J.-L.P.)
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27
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Balaphas A, Meyer J, Sadoul R, Morel P, Gonelle-Gispert C, Bühler LH. Extracellular vesicles: Future diagnostic and therapeutic tools for liver disease and regeneration. Liver Int 2019; 39:1801-1817. [PMID: 31286675 DOI: 10.1111/liv.14189] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 06/06/2019] [Accepted: 07/01/2019] [Indexed: 02/13/2023]
Abstract
Extracellular vesicles are membrane fragments that can be produced by all cell types. Interactions between extracellular vesicles and various liver cells constitute an emerging field in hepatology and recent evidences have established a role for extracellular vesicles in various liver diseases and physiological processes. Extracellular vesicles originating from liver cells are implicated in intercellular communication and fluctuations of specific circulating extracellular vesicles could constitute new diagnostic tools. In contrast, extracellular vesicles derived from progenitor cells interact with hepatocytes or non-parenchymal cells, thereby protecting the liver from various injuries and promoting liver regeneration. Our review focuses on recent developments investigating the role of various types of extracellular vesicles in acute and chronic liver diseases as well as their potential use as biomarkers and therapeutic tools.
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Affiliation(s)
- Alexandre Balaphas
- Division of Digestive Surgery, University Hospitals of Geneva, Geneva, Switzerland.,Surgical Research Unit, University Hospitals of Geneva, Geneva, Switzerland.,Geneva Medical School, University Hospitals of Geneva, Geneva, Switzerland
| | - Jeremy Meyer
- Division of Digestive Surgery, University Hospitals of Geneva, Geneva, Switzerland.,Surgical Research Unit, University Hospitals of Geneva, Geneva, Switzerland.,Geneva Medical School, University Hospitals of Geneva, Geneva, Switzerland
| | - Rémy Sadoul
- Université Grenoble Alpes, Institut des Neurosciences, Grenoble, France
| | - Philippe Morel
- Division of Digestive Surgery, University Hospitals of Geneva, Geneva, Switzerland.,Surgical Research Unit, University Hospitals of Geneva, Geneva, Switzerland.,Geneva Medical School, University Hospitals of Geneva, Geneva, Switzerland
| | - Carmen Gonelle-Gispert
- Surgical Research Unit, University Hospitals of Geneva, Geneva, Switzerland.,Geneva Medical School, University Hospitals of Geneva, Geneva, Switzerland
| | - Leo Hans Bühler
- Division of Digestive Surgery, University Hospitals of Geneva, Geneva, Switzerland.,Surgical Research Unit, University Hospitals of Geneva, Geneva, Switzerland.,Geneva Medical School, University Hospitals of Geneva, Geneva, Switzerland
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28
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Kumi RO, Issahaku AR, Soremekun OS, Agoni C, Olotu FA, Soliman MES. From the Explored to the Unexplored: Computer-Tailored Drug Design Attempts in the Discovery of Selective Caspase Inhibitors. Comb Chem High Throughput Screen 2019; 22:432-444. [PMID: 31560284 DOI: 10.2174/1386207322666190927143026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/19/2019] [Accepted: 08/01/2019] [Indexed: 01/09/2023]
Abstract
The pathophysiological roles of caspases have made them attractive targets in the treatment and amelioration of neurologic diseases. In normal conditions, the expression of caspases is regulated in the brain, while at the onset of neurodegeneration, such as in Alzheimer's disease, they are typically overexpressed. Till date, several therapeutic efforts that include the use of small endogenous binders have been put forward to curtail dysfunctionalities that drive aberrant death in neuronal cells. Caspases are highly homologous, both in structure and in sequence, which leaves us with the question: is it possible to specifically and individually target caspases, while multiple therapeutic attempts to achieve selective targeting have failed! Based on antecedent events, the use of Computer-Aided Drug Design (CADD) methods has significantly contributed to the design of small molecule inhibitors, especially with selective target ability and reduced off-target therapeutic effects. Interestingly, we found out that there still exists an enormous room for the integration of structure/ligand-based drug design techniques towards the development of highly specific reversible and irreversible caspase inhibitors. Therefore, in this review, we highlight drug discovery approaches that have been directed towards caspase inhibition in addition to an insightful focus on applicable CADD techniques for achieving selective targeting in caspase research.
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Affiliation(s)
- Ransford O Kumi
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban 4001, South Africa
| | - Abdul R Issahaku
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban 4001, South Africa
| | - Opeyemi S Soremekun
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban 4001, South Africa
| | - Clement Agoni
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban 4001, South Africa
| | - Fisayo A Olotu
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban 4001, South Africa
| | - Mahmoud E S Soliman
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban 4001, South Africa
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29
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Wang M, Yang L, Yang J, Zhou Y, Wang C. Magnesium lithospermate B attenuates renal injury in 5/6 renal ablation/infarction rats by mitochondrial pathway of apoptosis. Biomed Pharmacother 2019; 118:109316. [PMID: 31387002 DOI: 10.1016/j.biopha.2019.109316] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 07/21/2019] [Accepted: 07/31/2019] [Indexed: 12/30/2022] Open
Abstract
Apoptosis is closely interconnected with the severity of renal injury. Magnesium lithospermate B (MLB) extracted from Salviae miltiorrhizae radix showed a wide range of renoprotective effects. However, the underlying mechanisms under beneficial effects have not been elucidated. This study was conducted to investigate whether MLB could mediate renal protection and attenuate apoptosis by mitochondrial pathway. In the present study, the rat model of chronic renal failure (CRF) was established by the 5/6 renal ablation/infarction (A/I) operation. 28 days after the surgery, 30 rats were randomly divided into three groups: sham group, 5/6 (A/I) group and 5/6 (A/I) + MLB group. After 56 days of treatment, we detected the severity of kidney injury, the degree of mitochondrial bax oligomerization and cytochrome c release along with the expression of P53 protein. Our results showed that MLB markedly attenuated kidney injury and apoptosis in 5/6 (A/I) model rats with CRF. MLB effectively inhibited mitochondrial bax accumulation and release of cytochrome c into the cytosol and down-regulated the levels of p53 phosphorylation and acetylation. These data showed that MLB could contribute to renal protection by inhibiting mitochondrial pathway of apoptosis.
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Affiliation(s)
- Meng Wang
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; TCM institute of kidney disease, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Shanghai Key Laboratory of Traditional Chinese Clinical Medicine,Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Liuyi Yang
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; TCM institute of kidney disease, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Shanghai Key Laboratory of Traditional Chinese Clinical Medicine,Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Jing Yang
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; TCM institute of kidney disease, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Shanghai Key Laboratory of Traditional Chinese Clinical Medicine,Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Yuan Zhou
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; TCM institute of kidney disease, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Shanghai Key Laboratory of Traditional Chinese Clinical Medicine,Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Chen Wang
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; TCM institute of kidney disease, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Shanghai Key Laboratory of Traditional Chinese Clinical Medicine,Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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30
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Hollville E, Romero SE, Deshmukh M. Apoptotic cell death regulation in neurons. FEBS J 2019; 286:3276-3298. [PMID: 31230407 DOI: 10.1111/febs.14970] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/15/2019] [Accepted: 06/20/2019] [Indexed: 12/16/2022]
Abstract
Apoptosis plays a major role in shaping the developing nervous system during embryogenesis as neuronal precursors differentiate to become post-mitotic neurons. However, once neurons are incorporated into functional circuits and become mature, they greatly restrict their capacity to die via apoptosis, thus allowing the mature nervous system to persist in a healthy and functional state throughout life. This robust restriction of the apoptotic pathway during neuronal differentiation and maturation is defined by multiple unique mechanisms that function to more precisely control and restrict the intrinsic apoptotic pathway. However, while these mechanisms are necessary for neuronal survival, mature neurons are still capable of activating the apoptotic pathway in certain pathological contexts. In this review, we highlight key mechanisms governing the survival of post-mitotic neurons, while also detailing the physiological and pathological contexts in which neurons are capable of overcoming this high apoptotic threshold.
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Affiliation(s)
| | - Selena E Romero
- Neuroscience Center, UNC Chapel Hill, NC, USA.,Department of Cell Biology and Physiology, UNC Chapel Hill, NC, 27599-7250, USA
| | - Mohanish Deshmukh
- Neuroscience Center, UNC Chapel Hill, NC, USA.,Department of Cell Biology and Physiology, UNC Chapel Hill, NC, 27599-7250, USA
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31
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Ramos-Guzmán CA, Zinovjev K, Tuñón I. Modeling caspase-1 inhibition: Implications for catalytic mechanism and drug design. Eur J Med Chem 2019; 169:159-167. [PMID: 30875506 DOI: 10.1016/j.ejmech.2019.02.064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 02/21/2019] [Accepted: 02/23/2019] [Indexed: 10/27/2022]
Abstract
The metabolic product of caspase-1, IL-1β, is an important mediator in inflammation and pyroptosis cell death process. Alzheimer's disease, septic shock and rheumatoid arthritis are IL-1β mediated diseases, making the caspase-1 an interesting target of pharmacological value. Many inhibitors have been developed until now, most of them are peptidomimetic with improved potency. In the present study, all-atom molecular dynamics simulations and the MM/GBSA method were employed to reproduce and interpret the results obtained by in vitro experiments for a series of inhibitors. The analysis shows that the tautomeric state of the catalytic His237 impact significantly the performance of the prediction protocol, providing evidence for a His237 tautomeric state different to the proposed in the putative mechanism. Additionally, analysis of inhibitor-enzyme interactions indicates that the differences in the inhibitory potency of the tested ligands can be explained mainly by the interaction of the inhibitors with the S2-S4 protein region. These results provide guidelines for subsequent studies of caspase-1 catalytic reaction mechanism and for the design of novel inhibitors.
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Affiliation(s)
- Carlos A Ramos-Guzmán
- Departamento de Química Física, Universidad de Valencia, Burjassot, Valencia, 46100, Spain
| | - Kirill Zinovjev
- Departamento de Química Física, Universidad de Valencia, Burjassot, Valencia, 46100, Spain
| | - Iñaki Tuñón
- Departamento de Química Física, Universidad de Valencia, Burjassot, Valencia, 46100, Spain.
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ShenShuai II Recipe Attenuates Apoptosis and Renal Fibrosis in Chronic Kidney Disease by Increasing Renal Blood Flow and Improving Oxygen Consumption. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:7602962. [PMID: 30643536 PMCID: PMC6311238 DOI: 10.1155/2018/7602962] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/20/2018] [Accepted: 12/03/2018] [Indexed: 12/25/2022]
Abstract
Background. Hypoxia plays a significant role in the progression of chronic kidney disease (CKD) and renal fibrosis. In China, Chinese herbal medicine has been widely used to treat CKD. ShenShuai II Recipe (SSR) is a commonly used prescription which has shown good results against CKD. However, the exact mechanisms of SSR are still unknown. In this study, chronic renal failure (CRF) was induced in rats by the 5/6 renal ablation/infarction (A/I) surgery; we investigated the efficacy and mechanisms of SSR on CKD in the current study. Male Sprague-Dawley (SD) rats were divided into the four groups: (1) sham operation group, (2) 5/6 (A/I) model group, (3) 5/6 (A/I) +SSR group, and (4) 5/6 (A/I) +Losartan group (5/6 (A/I) +Los). After 8 weeks of treatment, we evaluated renal blood flow (RBF) and oxygen consumption along with renal function, apoptosis, and renal fibrosis. Our results showed that SSR significantly improved RBF and reduced intrarenal oxygen consumption and apoptosis. Moreover, SSR markedly attenuated interstitial fibrosis, accompanied by decreased levels of serum creatinine (Scr), serum uric acid (UA), increased hemoglobin (HB), and evaluated glomerular filtration rates (eGFRs). These results suggest that SSR could mediate renal protection by improving intrarenal hypoxia and, furthermore, participate in the antiapoptotic effects by downregulating apoptosis markers (cleaved caspase-3 and the ratio of Bax/Bcl2) in 5/6 (A/I) model with CRF rats.
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Comparing the effects of different cell death programs in tumor progression and immunotherapy. Cell Death Differ 2018; 26:115-129. [PMID: 30341424 DOI: 10.1038/s41418-018-0214-4] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 09/21/2018] [Accepted: 09/26/2018] [Indexed: 12/18/2022] Open
Abstract
Our conception of programmed cell death has expanded beyond apoptosis to encompass additional forms of cell suicide, including necroptosis and pyroptosis; these cell death modalities are notable for their diverse and emerging roles in engaging the immune system. Concurrently, treatments that activate the immune system to combat cancer have achieved remarkable success in the clinic. These two scientific narratives converge to provide new perspectives on the role of programmed cell death in cancer therapy. This review focuses on our current understanding of the relationship between apoptosis and antitumor immune responses and the emerging evidence that induction of alternate death pathways such as necroptosis could improve therapeutic outcomes.
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Gao D, Zhang J, Bai L, Li F, Dong Y, Li Q. Melittin induces NSCLC apoptosis via inhibition of miR-183. Onco Targets Ther 2018; 11:4511-4523. [PMID: 30122943 PMCID: PMC6078185 DOI: 10.2147/ott.s169806] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Non-small-cell lung cancer (NSCLC) has one of the highest mortality rates among cancers worldwide, with a poor prognosis. Previous studies have reported that melittin, an active component of apitoxin, exerts anti-inflammatory and antitumor effects via vascular endothelial growth factor or FoxO1. Methods CCK8, flow cytometry assay and Western blotting were performed to evaluate the effect of melittin on NSCLC. Results The present study demonstrates that melittin activated caspase-2 by inhibiting miR-183 expression and, thus, induced NSCLC apoptosis in both NCI-H441 cancer cell line assays and an in vivo xenograft model. The results of the cell-based assays showed that melittin (2 μg/mL) robustly suppressed miR-183 expression level and resulted in decreased invasion and migration abilities of NCI-H441 cells. Additionally, a flow cytometry assay and Western blotting showed that melittin induced NSCLC NCI-H441 cell apoptosis along with significant elevation of caspase-2 and Bax, which are regulators of cell apoptosis, and reduced Bcl-2 protein expression compared with dimethyl sulfoxide control. Furthermore, subcutaneous injection of melittin (5 mg/kg) significantly suppressed NSCLC tumor growth compared with vehicle group tumors, determined through tumor size and weight. Conclusion Taken together, the aforementioned findings contribute to identification of a novel therapeutic target in the treatment of NSCLC, in patients diagnosed with a high expression of miR-183. Moreover, this article provides solid evidence for the inhibitory effect of melittin on NSCLC cancer cell growth.
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Affiliation(s)
- Dongqi Gao
- Department of Oncology, Affiliated Hospital of Chengde Medical University, Chengde 067000, China,
| | - Jingjing Zhang
- Department of Oncology, Affiliated Hospital of Chengde Medical University, Chengde 067000, China,
| | - Lu Bai
- Department of Oncology, Affiliated Hospital of Chengde Medical University, Chengde 067000, China,
| | - Fubo Li
- Department of Oncology, Affiliated Hospital of Chengde Medical University, Chengde 067000, China,
| | - Yi Dong
- Department of Oncology, Affiliated Hospital of Chengde Medical University, Chengde 067000, China,
| | - Qingshan Li
- Department of Oncology, Affiliated Hospital of Chengde Medical University, Chengde 067000, China,
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Zheng Y, Liu Q, Wu Y, Ma L, Zhang Z, Liu T, Jin S, She Y, Li YP, Cui J. Zika virus elicits inflammation to evade antiviral response by cleaving cGAS via NS1-caspase-1 axis. EMBO J 2018; 37:embj.201899347. [PMID: 30065070 DOI: 10.15252/embj.201899347] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/28/2018] [Accepted: 07/03/2018] [Indexed: 01/02/2023] Open
Abstract
Viral infection triggers host innate immune responses, which primarily include the activation of type I interferon (IFN) signaling and inflammasomes. Here, we report that Zika virus (ZIKV) infection triggers NLRP3 inflammasome activation, which is further enhanced by viral non-structural protein NS1 to benefit its replication. NS1 recruits the host deubiquitinase USP8 to cleave K11-linked poly-ubiquitin chains from caspase-1 at Lys134, thus inhibiting the proteasomal degradation of caspase-1. The enhanced stabilization of caspase-1 by NS1 promotes the cleavage of cGAS, which recognizes mitochondrial DNA release and initiates type I IFN signaling during ZIKV infection. NLRP3 deficiency increases type I IFN production and strengthens host resistance to ZIKVin vitro and in vivo Taken together, our work unravels a novel antagonistic mechanism employed by ZIKV to suppress host immune response by manipulating the interplay between inflammasome and type I IFN signaling, which might guide the rational design of therapeutics in the future.
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Affiliation(s)
- Yanyan Zheng
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Qingxiang Liu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yaoxing Wu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ling Ma
- Institute of Human Virology, Key Laboratory of Tropical Diseases Control Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Zhenzhen Zhang
- Institute of Human Virology, Key Laboratory of Tropical Diseases Control Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Tao Liu
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Shouheng Jin
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yuanchu She
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yi-Ping Li
- Institute of Human Virology, Key Laboratory of Tropical Diseases Control Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China .,Department of Infectious Disease, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Jun Cui
- MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
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Wilson CH, Kumar S. Caspases in metabolic disease and their therapeutic potential. Cell Death Differ 2018; 25:1010-1024. [PMID: 29743560 PMCID: PMC5988802 DOI: 10.1038/s41418-018-0111-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 02/26/2018] [Accepted: 03/22/2018] [Indexed: 12/13/2022] Open
Abstract
Caspases, a family of cysteine-dependent aspartate-specific proteases, are central to the maintenance of cellular and organismal homoeostasis by functioning as key mediators of the inflammatory response and/or apoptosis. Both metabolic inflammation and apoptosis play a central role in the pathogenesis of metabolic disease such as obesity and the progression of nonalcoholic steatohepatisis (NASH) to more severe liver disease. Obesity and nonalcoholic fatty liver disease (NAFLD) are the leading global health challenges associated with the development of numerous comorbidities including insulin resistance, type-2 diabetes and early mortality. Despite the high prevalence, current treatment strategies including lifestyle, dietary, pharmaceutical and surgical interventions, are often limited in their efficacy to manage or treat obesity, and there are currently no clinical therapies for NAFLD/NASH. As mediators of inflammation and cell death, caspases are attractive therapeutic targets for the treatment of these metabolic diseases. As such, pan-caspase inhibitors that act by blocking apoptosis have reached phase I/II clinical trials in severe liver disease. However, there is still a lack of knowledge of the specific and differential functions of individual caspases. In addition, cross-talk between alternate cell death pathways is a growing concern for long-term caspase inhibition. Evidence is emerging of the important cell-death-independent, non-apoptotic functions of caspases in metabolic homoeostasis that may be of therapeutic value. Here, we review the current evidence for roles of caspases in metabolic disease and discuss their potential targeting as a therapeutic strategy.
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Affiliation(s)
- Claire H Wilson
- Centre for Cancer Biology, University of South Australia & SA Pathology, Adelaide, SA, 5001, Australia.
| | - Sharad Kumar
- Centre for Cancer Biology, University of South Australia & SA Pathology, Adelaide, SA, 5001, Australia.
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Putatunda R, Bethea JR, Hu WH. Potential immunotherapies for traumatic brain and spinal cord injury. Chin J Traumatol 2018; 21:125-136. [PMID: 29759918 PMCID: PMC6033730 DOI: 10.1016/j.cjtee.2018.02.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 02/08/2018] [Indexed: 02/04/2023] Open
Abstract
Traumatic injury of the central nervous system (CNS) including brain and spinal cord remains a leading cause of morbidity and disability in the world. Delineating the mechanisms underlying the secondary and persistent injury versus the primary and transient injury has been drawing extensive attention for study during the past few decades. The sterile neuroinflammation during the secondary phase of injury has been frequently identified substrate underlying CNS injury, but as of now, no conclusive studies have determined whether this is a beneficial or detrimental role in the context of repair. Recent pioneering studies have demonstrated the key roles for the innate and adaptive immune responses in regulating sterile neuroinflammation and CNS repair. Some promising immunotherapeutic strategies have been recently developed for the treatment of CNS injury. This review updates the recent progress on elucidating the roles of the innate and adaptive immune responses in the context of CNS injury, the development and characterization of potential immunotherapeutics, as well as outstanding questions in this field.
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Affiliation(s)
- Raj Putatunda
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, USA
| | - John R. Bethea
- Department of Biology, Drexel University, Philadelphia, PA, USA
| | - Wen-Hui Hu
- Center for Metabolic Disease Research, Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, 3500 N Broad Street, Philadelphia, PA, USA,Corresponding author.
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Abstract
Modulation of inflammasomes has tremendous therapeutic potential and is hotly pursued by industry and academia alike. Indeed a growing number of patents are emerging to protect the intellectual property in valuable compound classes. This chapter focusses specifically on the suite of small-molecule NLRP3 inflammasome inhibitors published, as specific modulation of other inflammasomes is not yet well established. Synthetic molecules, known drugs and natural product NLRP3 modulators will be detailed. Some of the molecular classes discussed have been extensively characterised through cell-based screening, pharmacokinetic profiling and therapeutic proof of concept animal models. However, many inhibitors lack rigorous studies and/or have multiple activities of which NLRP3 modulation is only one. While this is not intended as an exhaustive list, it should give an impression of the range of structures and strategies that are being used, alongside challenges encountered, in an effort to exploit the significant therapeutic benefits of targeting inflammasomes.
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Affiliation(s)
- Avril A B Robertson
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia.
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