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Liu Q, Li M, Sun M, Xin R, Wang Y, Chen Q, Gao X, Lin Z. Depletion of Gsdma1/2/3 alleviates PMA-induced epidermal hyperplasia by inhibiting the EGFR-Stat3/Akt pathway. J Mol Cell Biol 2024; 16:mjad080. [PMID: 38115633 PMCID: PMC11253210 DOI: 10.1093/jmcb/mjad080] [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: 05/16/2022] [Revised: 06/08/2023] [Accepted: 12/18/2023] [Indexed: 12/21/2023] Open
Abstract
Homeostasis of the skin barrier is essential for maintaining normal skin function. Gasdermin A (GSDMA) is highly expressed in the skin and associated with many skin diseases, such as melanoma and psoriasis. In mice, GSDMA is encoded by three gene homologues, namely Gsdma1, Gsdma2, and Gsdma3. Although Gsdma3 gain-of-function mutations cause hair loss and skin inflammation, Gsdma3-deficient mice do not show any visible phenotypes in skin and hair structures. To explore the physiological function of GSDMA, we generated conventional Gsdma1/2/3 knockout (KO) mice. These mice showed significantly alleviated epidermal hyperplasia and inflammation induced by phorbol 12-myristate 13-acetate (PMA). Furthermore, the alleviation of epidermal hyperplasia depended on the expression of Gsdma1/2/3 specifically in keratinocytes. Mechanistically, Gsdma1/2/3 depletion downregulated epidermal growth factor receptor (EGFR) ligands, leading to the decreased EGFR-Stat3/Akt signalling. These results demonstrate that depletion of Gsdma1/2/3 alleviates PMA-induced epidermal hyperplasia partially by inhibiting the EGFR-Stat3/Akt pathway.
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Affiliation(s)
- Qiyao Liu
- MOE Key Laboratory of Model Animals for Disease Study, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, National Resource Center for Mutant Mice of China, Nanjing Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing 210061, China
| | - Manyun Li
- MOE Key Laboratory of Model Animals for Disease Study, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, National Resource Center for Mutant Mice of China, Nanjing Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing 210061, China
| | - Minli Sun
- MOE Key Laboratory of Model Animals for Disease Study, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, National Resource Center for Mutant Mice of China, Nanjing Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing 210061, China
| | - Ruyue Xin
- MOE Key Laboratory of Model Animals for Disease Study, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, National Resource Center for Mutant Mice of China, Nanjing Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing 210061, China
| | - Yushu Wang
- MOE Key Laboratory of Model Animals for Disease Study, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, National Resource Center for Mutant Mice of China, Nanjing Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing 210061, China
| | - Qin Chen
- Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200240, China
| | - Xiang Gao
- MOE Key Laboratory of Model Animals for Disease Study, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, National Resource Center for Mutant Mice of China, Nanjing Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing 210061, China
| | - Zhaoyu Lin
- MOE Key Laboratory of Model Animals for Disease Study, State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, National Resource Center for Mutant Mice of China, Nanjing Drum Tower Hospital, School of Medicine, Nanjing University, Nanjing 210061, China
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Oladapo A, Jackson T, Menolascino J, Periyasamy P. Role of pyroptosis in the pathogenesis of various neurological diseases. Brain Behav Immun 2024; 117:428-446. [PMID: 38336022 PMCID: PMC10911058 DOI: 10.1016/j.bbi.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/22/2023] [Accepted: 02/02/2024] [Indexed: 02/12/2024] Open
Abstract
Pyroptosis, an inflammatory programmed cell death process, has recently garnered significant attention due to its pivotal role in various neurological diseases. This review delves into the intricate molecular signaling pathways governing pyroptosis, encompassing both caspase-1 dependent and caspase-1 independent routes, while emphasizing the critical role played by the inflammasome machinery in initiating cell death. Notably, we explore the Nucleotide-binding domain leucine-rich repeat (NLR) containing protein family, the Absent in melanoma 2-like receptor family, and the Pyrin receptor family as essential activators of pyroptosis. Additionally, we comprehensively examine the Gasdermin family, renowned for their role as executioner proteins in pyroptosis. Central to our review is the interplay between pyroptosis and various central nervous system (CNS) cell types, including astrocytes, microglia, neurons, and the blood-brain barrier (BBB). Pyroptosis emerges as a significant factor in the pathophysiology of each cell type, highlighting its far-reaching impact on neurological diseases. This review also thoroughly addresses the involvement of pyroptosis in specific neurological conditions, such as HIV infection, drug abuse-mediated pathologies, Alzheimer's disease, and Parkinson's disease. These discussions illuminate the intricate connections between pyroptosis, chronic inflammation, and cell death in the development of these disorders. We also conducted a comparative analysis, contrasting pyroptosis with other cell death mechanisms, thereby shedding light on their unique aspects. This approach helps clarify the distinct contributions of pyroptosis to neuroinflammatory processes. In conclusion, this review offers a comprehensive exploration of the role of pyroptosis in various neurological diseases, emphasizing its multifaceted molecular mechanisms within various CNS cell types. By elucidating the link between pyroptosis and chronic inflammation in the context of neurodegenerative disorders and infections, it provides valuable insights into potential therapeutic targets for mitigating these conditions.
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Affiliation(s)
- Abiola Oladapo
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA
| | - Thomas Jackson
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA
| | - Jueliet Menolascino
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA
| | - Palsamy Periyasamy
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA.
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3
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Wang RH, Shang BB, Wu SX, Wang L, Sui SG. Recent updates on pyroptosis in tumors of the digestive tract. J Dig Dis 2023; 24:640-647. [PMID: 38059890 DOI: 10.1111/1751-2980.13244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 11/27/2023] [Accepted: 12/06/2023] [Indexed: 12/08/2023]
Abstract
Pyroptosis is an inflammasome-dependent form of programmed cell death that is mediated by caspases-1, -4, -5, and -11, and the gasdermin protein family. It is characterized by the rupture of cell membrane and the subsequent release of cell contents and interleukins, leading to inflammatory reaction and activation of the immune system. Recent studies have suggested that pyroptosis plays a role in the development of gastrointestinal tumors, impeding tumor generation and progression as well as providing a favorable microenvironment for tumor growth. In this review we outlined the current knowledge regarding the implications of pyroptosis in gastrointestinal cancers.
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Affiliation(s)
- Ruo Han Wang
- Emergency Department, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Bing Bing Shang
- Emergency Department, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Shi Xi Wu
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Liang Wang
- Research and Teaching Department of Comparative Medicine, Dalian Medical University, Dalian, Liaoning Province, China
| | - Shao Guang Sui
- Emergency Department, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, China
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4
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Slaufova M, Karakaya T, Di Filippo M, Hennig P, Beer HD. The gasdermins: a pore-forming protein family expressed in the epidermis. Front Immunol 2023; 14:1254150. [PMID: 37771587 PMCID: PMC10523161 DOI: 10.3389/fimmu.2023.1254150] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 08/24/2023] [Indexed: 09/30/2023] Open
Abstract
Gasdermins comprise a family of pore-forming proteins, which play critical roles in (auto)inflammatory diseases and cancer. They are expressed as self-inhibited precursor proteins consisting of an aminoterminal cytotoxic effector domain (NT-GSDM) and a carboxyterminal inhibitor domain (GSDM-CT) separated by an unstructured linker region. Proteolytic processing in the linker region liberates NT-GSDM, which translocates to membranes, forms oligomers, and induces membrane permeabilization, which can disturb the cellular equilibrium that can lead to cell death. Gasdermin activation and pore formation are associated with inflammation, particularly when induced by the inflammatory protease caspase-1 upon inflammasome activation. These gasdermin pores allow the release of the pro-inflammatory cytokines interleukin(IL)-1β and IL-18 and induce a lytic type of cell death, termed pyroptosis that supports inflammation, immunity, and tissue repair. However, even at the cellular level, the consequences of gasdermin activation are diverse and range from induction of programmed cell death - pyroptosis or apoptosis - to poorly characterized protective mechanisms. The specific effects of gasdermin activation can vary between species, cell types, the membrane that is being permeabilized (plasma membrane, mitochondrial membrane, etc.), and the overall biological state of the local tissue/cells. In epithelia, gasdermins seem to play crucial roles. Keratinocytes represent the main cell type of the epidermis, which is the outermost skin layer with an essential barrier function. Compared to other tissues, keratinocytes express all members of the gasdermin family, in part in a differentiation-specific manner. That raises questions regarding the specific roles of individual GSDM family members in the skin, the mechanisms and consequences of their activation, and the potential crosstalk between them. In this review, we summarize the current knowledge about gasdermins with a focus on keratinocytes and the skin and discuss the possible roles of the different family members in immunity and disease.
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Affiliation(s)
- Marta Slaufova
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Tugay Karakaya
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Michela Di Filippo
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Paulina Hennig
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Hans-Dietmar Beer
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
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5
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Broz P. Unconventional protein secretion by gasdermin pores. Semin Immunol 2023; 69:101811. [PMID: 37473560 DOI: 10.1016/j.smim.2023.101811] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/14/2023] [Accepted: 07/14/2023] [Indexed: 07/22/2023]
Abstract
Unconventional protein secretion (UPS) allows the release of specific leaderless proteins independently of the classical endoplasmic reticulum (ER)-Golgi secretory pathway. While it remains one of the least understood mechanisms in cell biology, UPS plays an essential role in immunity as it controls the release of the IL-1 family of cytokines, which coordinate host defense and inflammatory responses. The unconventional secretion of IL-1β and IL-18, the two most prominent members of the IL-1 family, is initiated by inflammasome complexes - cytosolic signaling platforms that are assembled in response to infectious or noxious stimuli. Inflammasomes activate inflammatory caspases that proteolytically mature IL-1β/- 18, but also induce pyroptosis, a lytic form of cell death. Pyroptosis is caused by gasdermin-D (GSDMD), a member of the gasdermin protein family, which is activated by caspase cleavage and forms large β-barrel plasma membrane pores. This pore-forming activity is shared with other family members that are activated during infection or upon treatment with chemotherapy drugs. While the induction of cell death was assumed to be the main function of gasdermin pores, accumulating evidence suggests that they have also non-lytic functions, such as in the release of cytokines and alarmins, or in regulating ion fluxes. This has raised the possibility that gasdermin pores are one of the main mediators of UPS. Here, I summarize and discuss new insights into gasdermin activation and pore formation, how gasdermin pores achieve selective cargo release, and how gasdermin pore formation and ninjurin-1-driven plasma membrane rupture are executed and regulated.
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Affiliation(s)
- Petr Broz
- Department of Immunobiology, University of Lausanne, Switzerland.
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6
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Zheng Y, Yuan D, Zhang F, Tang R. A systematic pan-cancer analysis of the gasdermin (GSDM) family of genes and their correlation with prognosis, the tumor microenvironment, and drug sensitivity. Front Genet 2022; 13:926796. [PMID: 36003332 PMCID: PMC9393220 DOI: 10.3389/fgene.2022.926796] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 07/05/2022] [Indexed: 11/23/2022] Open
Abstract
Background: Pyroptosis is a programmed cell death process mediated by the gasdermin (GSDM) protein. However, limited research has been conducted to comprehensively analyze the contribution of the GSDM family in a pan-cancer setting. Methods: We systematically evaluated the gene expression, genetic variations, and prognostic values of the GSDM family members. Furthermore, we investigated the association between the expression of GSDM genes and immune subtypes, the tumor microenvironment (TME), the stemness index, and cancer drug sensitivities by means of a pan-cancer analysis. Results: GSDM genes were highly upregulated in most of the tested cancers. Low-level mutation frequencies within GSDM genes were common across the examined types of cancer, and their expression levels were associated with prognosis, clinical characteristics, TME features, and stemness scores in several cancer types, particularly those of the urinary system. Importantly, we found that the expressions of GSDMB, GSDMC, and GSDMD were higher in kidney carcinomas, and specifically kidney renal clear cell carcinoma (KIRC); which adversely impacted the patient outcome. We showed that GSDMD was potentially the most useful biomarker for KIRC. The drug sensitivity analysis demonstrated that the expressions of GSDM genes were correlated with the sensitivity of tumor cells to treatment with chemotherapy drugs nelarabine, fluphenazine, dexrazoxane, bortezomib, midostaurin, and vincristine. Conclusion: GSDM genes were associated with tumor behaviors and may participate in carcinogenesis. The results of this study may therefore provide new directions for further investigating the role of GSDM genes as therapeutic targets in a pan-cancer setting.
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Li AA, Zhang Y, Tong WL, Chen JW, Huang SH, Liu JM, Liu ZL. Identification of a Novel Pyroptosis-Related Gene Signature Indicative of Disease Prognosis and Treatment Response in Skin Cutaneous Melanoma. Int J Gen Med 2022; 15:6145-6163. [PMID: 35855761 PMCID: PMC9288220 DOI: 10.2147/ijgm.s367693] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 06/22/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Pyroptosis plays an important role in the occurrence and progression of many tumors; however, the specific mechanisms involved remain unknown. Here, we construct a pyroptosis-related gene signature that can be used to predict survival prognosis of skin cutaneous melanoma (SKCM) and provide guidance for clinical treatment. Methods By integrating data from the two databases from the GTEx and TCGA, differentially expressed genes (DEGs) from normal tissues and skin cutaneous tumor tissues were identified. The main signaling pathways and function enrichment of these differential genes were determined. Univariate and multivariate COX regression analysis, and risk score analysis were used to construct a signature to assess its predictive value for overall survival. The mRNA expression of these five genes in melanoma cells was determined by quantitative polymerase chain reaction (qPCR). The pRRophetic algorithm was used to estimate the half-maximal inhibitory concentration (IC50) of chemotherapy drugs in SKCM patients. The expression of multiple immune checkpoint genes also was evaluated. Results Sixteen DEGs associated with pyroptosis in SKCM and normal skin tissues were identified. Of these, 12 pyroptosis-related DEGs were associated with the prognosis of SKCM. A five-gene signature (GSDMA, GSDMC, IL-18, NLRP6, and AIM2) model was constructed. Patients were divided into high-risk and low-risk groups using the risk scores. Of these, the high-risk group had a worse survival prognosis. There are significant differences in the predicted sensitivity of the high-risk and low-risk groups to chemotherapeutic drugs. In addition, compared with the high-risk group, the low-risk group showed higher expression of PD-1, PDL-1, CTLA-4, LAG-3, and VSIR. Conclusion In this study, we constructed a novel prognostic pyroptosis-related gene-signature for SKCM. These genes showed good predictive value for patient prognosis and could provide guidance for better treatment of SKCM patients.
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Affiliation(s)
- An-An Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China.,Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Yu Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China.,Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Wei-Lai Tong
- Department of Orthopedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China.,Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Jiang-Wei Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Shan-Hu Huang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Jia-Ming Liu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Zhi-Li Liu
- Department of Orthopedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China.,Medical Innovation Center, The First Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
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Zou J, Zheng Y, Huang Y, Tang D, Kang R, Chen R. The Versatile Gasdermin Family: Their Function and Roles in Diseases. Front Immunol 2021; 12:751533. [PMID: 34858408 PMCID: PMC8632255 DOI: 10.3389/fimmu.2021.751533] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 10/25/2021] [Indexed: 12/22/2022] Open
Abstract
The gasdermin (GSDM) family, a novel group of structure-related proteins, consists of GSDMA, GSDMB, GSDMC, GSDMD, GSDME/DNFA5, and PVJK/GSDMF. GSDMs possess a C-terminal repressor domain, cytotoxic N-terminal domain, and flexible linker domain (except for GSDMF). The GSDM-NT domain can be cleaved and released to form large oligomeric pores in the membrane that facilitate pyroptosis. The emerging roles of GSDMs include the regulation of various physiological and pathological processes, such as cell differentiation, coagulation, inflammation, and tumorigenesis. Here, we introduce the basic structure, activation, and expression patterns of GSDMs, summarize their biological and pathological functions, and explore their regulatory mechanisms in health and disease. This review provides a reference for the development of GSDM-targeted drugs to treat various inflammatory and tissue damage-related conditions.
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Affiliation(s)
- Ju Zou
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China
| | - Yixiang Zheng
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China
| | - Yan Huang
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China
| | - Daolin Tang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, United States
| | - Rui Kang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, United States
| | - Ruochan Chen
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China
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9
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Hu Y, Wang B, Li S, Yang S. Pyroptosis, and its Role in Central Nervous System Disease. J Mol Biol 2021; 434:167379. [PMID: 34838808 DOI: 10.1016/j.jmb.2021.167379] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 11/16/2021] [Accepted: 11/20/2021] [Indexed: 02/07/2023]
Abstract
Pyroptosis is an inflammatory form of cell death executed by transmembrane pore-forming proteins known as gasdermins and can be activated in an inflammasome-dependent or -independent manner. Inflammasome-dependent pyroptosis is triggered in response to pathogen-associated molecular patterns (PAMPs) or damage-associated molecular patterns (DAMPs) and has emerged as an important player in the pathogenesis of multiple inflammatory diseases, mainly by releasing inflammatory contents. More recently, numerous studies have revealed the intricate mechanisms of pyroptosis and its role in the development of neuroinflammation in central nervous system (CNS) diseases. In this review, we summarize current understandings of the molecular and regulatory mechanisms of pyroptosis. In addition, we discuss how pyroptosis can drive different forms of neurological diseases and new promising therapeutic strategies targeting pyroptosis that can be leveraged to treat neuroinflammation.
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Affiliation(s)
- Yingchao Hu
- Department of Immunology, Key Laboratory of Immunological Environment and Disease, Gusu School, State Key Laboratory of Reproductive Medicine, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Center for Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Bingwei Wang
- Department of Pharmacology, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Sheng Li
- Department of Neurology, Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.
| | - Shuo Yang
- Department of Immunology, Key Laboratory of Immunological Environment and Disease, Gusu School, State Key Laboratory of Reproductive Medicine, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Center for Global Health, Nanjing Medical University, Nanjing 211166, China.
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10
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Liu J, Zhong Y, Liu H, Yang H, Lu P, Shi Y, Wang X, Zheng W, Yu X, Xu Y, Yang B. Oncostatin M sensitizes keratinocytes to UVB-induced inflammation via GSDME-mediated pyroptosis. J Dermatol Sci 2021; 104:95-103. [PMID: 34674925 DOI: 10.1016/j.jdermsci.2021.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Oncostatin M (OSM), an interleukin-6 (IL-6) family proinflammatory cytokine, plays a critical role in inflammatory skin diseases, but its mechanism of action is not well understood. OBJECTIVE To demonstrate the mechanism of OSM induced pyropotosis in normal human epidermal keratinocytes (NHEKs) and immortalized human keratinocytes (HaCaT cells). METHODS NHEKs and HaCaT cells were treated with OSM. Knockout of OSM receptor (OSMR) with CRISPR/Cas9 system, knockdown of GSDME with small interfering RNA and primary keratinocytes from Osmr-/- and Gsdme-/- mice were used to study the effect of OSMR and GSDME. After treatment of OSM, NHEKs and HaCaT cells were irradiated with UVB. The mRNA was analyzed by quantitative real-time polymerase chain reaction (qRT-PCR) and RNA sequencing, protein level was detected by Western Blotting, Elisa and immunofluorescence. Cell death was examined by lactate dehydrogenase (LDH) releasing. RESULTS Here we found that OSM induced pyropotosis in NHEKs and HaCaT cells, but knockout of OSMR abolished pyropotosis. RNA sequencing revealed an upregulation of several key genes involved in NLRP3 inflammasome activation following OSM treatment, among which NLRP3, GSDME, and IL-1β were confirmed by qRT-PCR and Western Blotting. Knockdown of GSDME alleviated OSM-induced pyropotosis. Pretreatment of OSM boosted UVB-induced pyroptosis and inflammation in NHEKs and HaCaT cells, and this priming function was lost in keratinocytes of Osmr-/- and Gsdme-/- mice. Similar results were obtained in a 3-dimensional culture of human epidermis. CONCLUSION OSM functions as a priming cytokine to enhance UVB-induced inflammation in keratinocytes, providing insight into the pathogenesis of inflammatory skin diseases.
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Affiliation(s)
- Jun Liu
- Institute of Dermatology and Venereology, Dermatology Hospital, Southern Medical University, Guangzhou, China; Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China.
| | - Yadan Zhong
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China; Department of Dermatology, The First People's Hospital of Foshan, Foshan, China
| | - Huiting Liu
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Huan Yang
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Ping Lu
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Yanqiang Shi
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Xuan Wang
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Wen Zheng
- Department of Science & Education, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoling Yu
- Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Yingping Xu
- Institute of Dermatology and Venereology, Dermatology Hospital, Southern Medical University, Guangzhou, China.
| | - Bin Yang
- Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China.
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11
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Rühl S, Broz P. Regulation of Lytic and Non-Lytic Functions of Gasdermin Pores. J Mol Biol 2021; 434:167246. [PMID: 34537232 DOI: 10.1016/j.jmb.2021.167246] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/03/2021] [Accepted: 09/10/2021] [Indexed: 12/13/2022]
Abstract
Pyroptosis is a necrotic form of cell death that was initially found to be induced upon activation of inflammatory caspases by inflammasome complexes. Mechanistically, pyroptosis induction requires cleavage of the caspase substrate gasdermin D (GSDMD), and the release of the GSDMD N-terminal fragment, which targets the plasma membrane to form large β-barrel pores. GSDMD shares this pore-forming ability with other gasdermin family members, which induce pyroptosis during infection or upon treatment with chemotherapy drugs. While induction of cell death has been assumed to be the main function of the gasdermin pores, increasing evidence suggests that these pores have non-lytic functions, such as in releasing cytokines or alarmins and in regulating intracellular signaling via ionic fluxes. Here we discuss how gasdermin pore formation is regulated to induce membrane permeabilization or lysis, how gasdermin pores achieve specificity for cargo-release and how cells repair gasdermin-induced damage to the plasma membrane.
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Affiliation(s)
- Sebastian Rühl
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Petr Broz
- Department of Biochemistry, University of Lausanne, 1066 Epalinges, Switzerland.
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Burdette BE, Esparza AN, Zhu H, Wang S. Gasdermin D in pyroptosis. Acta Pharm Sin B 2021; 11:2768-2782. [PMID: 34589396 PMCID: PMC8463274 DOI: 10.1016/j.apsb.2021.02.006] [Citation(s) in RCA: 274] [Impact Index Per Article: 91.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 11/29/2020] [Accepted: 12/01/2020] [Indexed: 02/07/2023] Open
Abstract
Pyroptosis is the process of inflammatory cell death. The primary function of pyroptosis is to induce strong inflammatory responses that defend the host against microbe infection. Excessive pyroptosis, however, leads to several inflammatory diseases, including sepsis and autoimmune disorders. Pyroptosis can be canonical or noncanonical. Upon microbe infection, the canonical pathway responds to pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs), while the noncanonical pathway responds to intracellular lipopolysaccharides (LPS) of Gram-negative bacteria. The last step of pyroptosis requires the cleavage of gasdermin D (GsdmD) at D275 (numbering after human GSDMD) into N- and C-termini by caspase 1 in the canonical pathway and caspase 4/5/11 (caspase 4/5 in humans, caspase 11 in mice) in the noncanonical pathway. Upon cleavage, the N-terminus of GsdmD (GsdmD-N) forms a transmembrane pore that releases cytokines such as IL-1β and IL-18 and disturbs the regulation of ions and water, eventually resulting in strong inflammation and cell death. Since GsdmD is the effector of pyroptosis, promising inhibitors of GsdmD have been developed for inflammatory diseases. This review will focus on the roles of GsdmD during pyroptosis and in diseases.
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Key Words
- 7DG, 7-desacetoxy-6,7-dehydrogedunin
- ADRA2B, α-2B adrenergic receptor
- AIM, absent in melanoma
- ASC, associated speck-like protein
- Ac-FLTD-CMK, acetyl-FLTD-chloromethylketone
- BMDM, bone marrow-derived macrophages
- CARD, caspase activation
- CD, Crohn’s disease
- CTM, Chinese traditional medicine
- CTSG, cathepsin G
- Caspase
- DAMP, damage-associated molecular pattern
- DFNA5, deafness autosomal dominant 5
- DFNB59, deafness autosomal recessive type 59
- DKD, diabetic kidney disease
- DMF, dimethyl fumarate
- Damage-associated molecular patterns (DAMPs)
- ELANE, neutrophil expressed elastase
- ESCRT, endosomal sorting complexes required for transport
- FADD, FAS-associated death domain
- FDA, U.S. Food and Drug Administration
- FIIND, function to find domain
- FMF, familial Mediterranean fever
- GI, gastrointestinal
- GPX, glutathione peroxidase
- Gasdermin
- GsdmA/B/C/D/E, gasdermin A/B/C/D/E
- HAMP, homeostasis altering molecular pattern
- HIN, hematopoietic expression, interferon-inducible nature, and nuclear localization
- HIV, human immunodeficiency virus
- HMGB1, high mobility group protein B1
- IBD, inflammatory bowel disease
- IFN, interferon
- ITPR1, inositol 1,4,5-trisphosphate receptor type 1
- Inflammasome
- Inflammation
- LPS, lipopolysaccharide
- LRR, leucine-rich repeat
- MAP3K7, mitogen-activated protein kinase kinase kinase 7
- MCC950, N-[[(1,2,3,5,6,7-hexahydro-s-indacen-4-yl)amino]carbonyl]-4-(1-hydroxy-1-methylethyl)-2-furansulfonamide
- NAIP, NLR family apoptosis inhibitory protein
- NBD, nucleotide-binding domain
- NEK7, NIMA-related kinase 7
- NET, neutrophil extracellular trap
- NIK, NF-κB inducing kinase
- NLR, NOD-like receptor
- NLRP, NLR family pyrin domain containing
- NSAID, non-steroidal anti-inflammatory drug
- NSCLC, non-small cell lung cancer
- NSP, neutrophil specific serine protease
- PAMP, pathogen-associated molecular pattern
- PKA, protein kinase A
- PKN1/2, protein kinase1/2
- PKR, protein kinase-R
- PRR, pattern recognition receptors
- PYD, pyrin domain
- Pathogen-associated molecular patterns (PAMPs)
- Pyroptosis
- ROS, reactive oxygen species
- STING, stimulator of interferon genes
- Sepsis
- TLR, Toll-like receptor
- UC, ulcerative colitis
- cAMP, cyclic adenosine monophosphate
- cGAS, cyclic GMP–AMP synthase
- mtDNA, mitochondrial DNA
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Affiliation(s)
- Brandon E. Burdette
- Biology Department, University of Arkansas at Little Rock, Little Rock, AR 72204, USA
| | - Ashley N. Esparza
- Biology Department, University of Arkansas at Little Rock, Little Rock, AR 72204, USA
| | - Hua Zhu
- Department of Surgery, the Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Shanzhi Wang
- Biology Department, University of Arkansas at Little Rock, Little Rock, AR 72204, USA
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Lu X, Guo T, Zhang X. Pyroptosis in Cancer: Friend or Foe? Cancers (Basel) 2021; 13:cancers13143620. [PMID: 34298833 PMCID: PMC8304688 DOI: 10.3390/cancers13143620] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/09/2021] [Accepted: 07/14/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Pyroptosis is a new form of programmed cell death that differs from apoptosis in terms of its release of inflammatory factors and its characteristic bubble-like morphology. Pyroptosis was first discovered in the process of immune defense against bacterial infection, but the field of research soon spread to other inflammatory diseases and cancer. As cancer constitutes a serious risk for public health, numerous studies investigating pyroptosis in cancer have been carried out during these years. Tumorigenesis and new therapeutic treatments have been the focus of much recent research. This review discusses the role of pyroptosis in tumorigenesis and its influence on tumor immunity. Abstract Pyroptosis is an inflammatory form of programmed cell death that is mediated by pore-forming proteins such as the gasdermin family (GSDMs), including GSDMA-E. Upon cleavage by activated caspases or granzyme proteases, the N-terminal of GSDMs oligomerizes in membranes to form pores, resulting in pyroptosis. Though all the gasdermin proteins have been studied in cancer, the role of pyroptosis in cancer remains mysterious, with conflicting findings. Numerous studies have shown that various stimuli, such as pathogen-associated molecular patterns (PAMPs), damage-associated molecular patterns (DAMPs), and chemotherapeutic drugs, could trigger pyroptosis when the cells express GSDMs. However, it is not clear whether pyroptosis in cancer induced by chemotherapeutic drugs or CAR T cell therapy is beneficial or harmful for anti-tumor immunity. This review discusses the discovery of pyroptosis as well as its role in inflammatory diseases and cancer, with an emphasis on tumor immunity.
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Yu P, Zhang X, Liu N, Tang L, Peng C, Chen X. Pyroptosis: mechanisms and diseases. Signal Transduct Target Ther 2021; 6:128. [PMID: 33776057 PMCID: PMC8005494 DOI: 10.1038/s41392-021-00507-5] [Citation(s) in RCA: 887] [Impact Index Per Article: 295.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 01/14/2021] [Accepted: 01/20/2021] [Indexed: 02/08/2023] Open
Abstract
Currently, pyroptosis has received more and more attention because of its association with innate immunity and disease. The research scope of pyroptosis has expanded with the discovery of the gasdermin family. A great deal of evidence shows that pyroptosis can affect the development of tumors. The relationship between pyroptosis and tumors is diverse in different tissues and genetic backgrounds. In this review, we provide basic knowledge of pyroptosis, explain the relationship between pyroptosis and tumors, and focus on the significance of pyroptosis in tumor treatment. In addition, we further summarize the possibility of pyroptosis as a potential tumor treatment strategy and describe the side effects of radiotherapy and chemotherapy caused by pyroptosis. In brief, pyroptosis is a double-edged sword for tumors. The rational use of this dual effect will help us further explore the formation and development of tumors, and provide ideas for patients to develop new drugs based on pyroptosis.
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Affiliation(s)
- Pian Yu
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, Hunan, China
- Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, Hunan, China
- Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China
| | - Xu Zhang
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, Hunan, China
- Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, Hunan, China
- Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China
| | - Nian Liu
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, Hunan, China
- Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, Hunan, China
- Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China
| | - Ling Tang
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, Hunan, China
- Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, Hunan, China
- Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China
| | - Cong Peng
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China.
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, Hunan, China.
- Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, Hunan, China.
- Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China.
| | - Xiang Chen
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China.
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Changsha, Hunan, China.
- Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Changsha, Hunan, China.
- Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China.
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15
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Wang M, Chen X, Zhang Y. Biological Functions of Gasdermins in Cancer: From Molecular Mechanisms to Therapeutic Potential. Front Cell Dev Biol 2021; 9:638710. [PMID: 33634141 PMCID: PMC7901903 DOI: 10.3389/fcell.2021.638710] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 01/20/2021] [Indexed: 12/15/2022] Open
Abstract
Pyroptosis is a type of lytic programmed cell death triggered by various inflammasomes that sense danger signals. Pyroptosis has recently attracted great attention owing to its contributory role in cancer. Pyroptosis plays an important role in cancer progression by inducing cancer cell death or eliciting anticancer immunity. The participation of gasdermins (GSDMs) in pyroptosis is a noteworthy recent discovery. GSDMs have emerged as a group of pore-forming proteins that serve important roles in innate immunity and are composed of GSDMA-E and Pejvakin (PJVK) in human. The N-terminal domains of GSDMs, expect PJVK, can form pores on the cell membrane and function as effector proteins of pyroptosis. Remarkably, it has been found that GSDMs are abnormally expressed in several forms of cancers. Moreover, GSDMs are involved in cancer cell growth, invasion, metastasis and chemoresistance. Additionally, increasing evidence has indicated an association between GSDMs and clinicopathological features in cancer patients. These findings suggest the feasibility of using GSDMs as prospective biomarkers for cancer diagnosis, therapeutic intervention and prognosis. Here, we review the progress in unveiling the characteristics and biological functions of GSDMs. We also focus on the implication and molecular mechanisms of GSDMs in cancer pathogenesis. Investigating the relationship between GSDMs and cancer biology could assist us to explore new therapeutic avenues for cancer prevention and treatment.
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Affiliation(s)
- Man Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xinzhe Chen
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yuan Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
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16
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Tang L, Lu C, Zheng G, Burgering BM. Emerging insights on the role of gasdermins in infection and inflammatory diseases. Clin Transl Immunology 2020; 9:e1186. [PMID: 33033617 PMCID: PMC7533414 DOI: 10.1002/cti2.1186] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 12/15/2022] Open
Abstract
The gasdermins, family of pore-forming proteins, are emerging key regulators of infection, autoinflammation and antitumor immunity. Multiple studies have recently characterised their crucial roles in driving pyroptosis, a lytic pro-inflammatory type of cell death. Additionally, gasdermins also act as key effectors of NETosis, secondary necrosis and apoptosis. In this review, we will address current understanding of the mechanisms of gasdermin activation and further describe the protective and detrimental roles of gasdermins in host defence and autoinflammatory diseases. These data suggest that gasdermins play a prominent role in innate immunity and autoinflammatory disorders, thereby providing potential new therapeutic avenues for the treatment of infection and autoimmune disease.
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Affiliation(s)
- Lipeng Tang
- Department of Pharmacology of Traditional Chinese Medicine The Second Affiliated Hospital of Guangzhou University of Chinese Medicine Guangzhou China.,Department of Molecular Cancer Research Center Molecular Medicine University Medical Center Utrecht Utrecht The Netherlands
| | - Chuanjian Lu
- Department of Dermatology The Second Affiliated Hospital of Guangzhou University of Chinese Medicine Guangzhou China
| | - Guangjuan Zheng
- Department of Pharmacology of Traditional Chinese Medicine The Second Affiliated Hospital of Guangzhou University of Chinese Medicine Guangzhou China.,Department of Pathology The Second Affiliated Hospital of Guangzhou University of Chinese Medicine Guangzhou China
| | - Boudewijn Mt Burgering
- Department of Molecular Cancer Research Center Molecular Medicine University Medical Center Utrecht Utrecht The Netherlands
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17
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Wang Y, Shi P, Chen Q, Huang Z, Zou D, Zhang J, Gao X, Lin Z. Mitochondrial ROS promote macrophage pyroptosis by inducing GSDMD oxidation. J Mol Cell Biol 2020; 11:1069-1082. [PMID: 30860577 PMCID: PMC6934151 DOI: 10.1093/jmcb/mjz020] [Citation(s) in RCA: 187] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/10/2019] [Accepted: 03/08/2019] [Indexed: 01/03/2023] Open
Abstract
Disrupted mitochondrial membrane potential (MMP) and reactive oxygen species (ROS) generation are often associated with macrophage pyroptosis. It remains unclear how these forms of mitochondrial dysfunction relate to inflammasome activation and gasdermin-D (Gsdmd) cleavage, two central steps of the pyroptotic process. Here, we also found MMP collapse and ROS generation induced by Nlrp3 inflammasome activation as previous studies reported. The elimination of ROS alleviated the cleavage of Gsdmd, suggesting that Gsdmd cleavage occurs downstream of ROS release. Consistent with this result, hydrogen peroxide treatment augmented the cleavage of Gsdmd by caspase-1. Indeed, four amino acid residues of Gsdmd were oxidized under oxidative stress in macrophages. The efficiency of Gsdmd cleavage by inflammatory caspase-1 was dramatically reduced when oxidative modification was blocked by mutation of these amino acid residues. These results demonstrate that Gsdmd oxidation serves as a de novo mechanism by which mitochondrial ROS promote Nlrp3 inflammasome-dependent pyroptotic cell death.
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Affiliation(s)
- Yufang Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing 210061, China
| | - Peiliang Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing 210061, China
| | - Qin Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing 210061, China
| | - Zan Huang
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, Nanjing Agriculture University, Nanjing 210095, China
| | - Dayuan Zou
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing 210061, China
| | - Jingzi Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing 210061, China
| | - Xiang Gao
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing 210061, China
| | - Zhaoyu Lin
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Hepatopancreatobiliary Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing 210061, China
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18
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Chen Q, Shi P, Wang Y, Zou D, Wu X, Wang D, Hu Q, Zou Y, Huang Z, Ren J, Lin Z, Gao X. GSDMB promotes non-canonical pyroptosis by enhancing caspase-4 activity. J Mol Cell Biol 2020; 11:496-508. [PMID: 30321352 DOI: 10.1093/jmcb/mjy056] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/08/2018] [Accepted: 10/13/2018] [Indexed: 12/11/2022] Open
Abstract
Gasdermin B (GSDMB) has been reported to be associated with immune diseases in humans, but the detailed molecular mechanisms remain unsolved. The N-terminus of GSDMB by itself, unlike other gasdermin family proteins, does not induce cell death. Here, we show that GSDMB is highly expressed in the leukocytes of septic shock patients, which is associated with increased release of the gasdermin D (GSDMD) N-terminus. GSDMB expression and the accumulation of the N-terminal fragment of GSDMD are induced by the activation of the non-canonical pyroptosis pathway in a human monocyte cell line. The downregulation of GSDMB alleviates the cleavage of GSDMD and cell death. Consistently, the overexpression of GSDMB promotes GSDMD cleavage, accompanied by increased LDH release. We further found that GSDMB promotes caspase-4 activity, which is required for the cleavage of GSDMD in non-canonical pyroptosis, by directly binding to the CARD domain of caspase-4. Our study reveals a GSDMB-mediated novel regulatory mechanism for non-canonical pyroptosis and suggests a potential new strategy for the treatment of inflammatory diseases.
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Affiliation(s)
- Qin Chen
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Peiliang Shi
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Yufang Wang
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Dayuan Zou
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Xiuwen Wu
- Department of Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Dingyu Wang
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Qiongyuan Hu
- Department of Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yujie Zou
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Zan Huang
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China.,Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, Nanjing Agriculture University, Nanjing, China
| | - Jianan Ren
- Department of Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Zhaoyu Lin
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Xiang Gao
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
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Zheng Z, Deng W, Lou X, Bai Y, Wang J, Zeng H, Gong S, Liu X. Gasdermins: pore-forming activities and beyond. Acta Biochim Biophys Sin (Shanghai) 2020; 52:467-474. [PMID: 32294153 DOI: 10.1093/abbs/gmaa016] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/28/2020] [Indexed: 11/13/2022] Open
Abstract
Gasdermins (GSDMs) belong to a protein superfamily that is found only in vertebrates and consists of GSDMA, GSDMB, GSDMC, GSDMD, DFNA5 (a.k.a. GSDME) and DFNB59 (a.k.a. Pejvakin (PJVK)) in humans. Except for DFNB59, all members of the GSDM superfamily contain a conserved two-domain structure (N-terminal and C-terminal domains) and share an autoinhibitory mechanism. When the N-terminal domain of these GSDMs is released, it possesses pore-forming activity that causes inflammatory death associated with the loss of cell membrane integrity and release of inflammatory mediators. It has also been found that spontaneous mutations occurring in the genes of GSDMs have been associated with the development of certain autoimmune disorders, as well as cancers. Here, we review the current knowledge of the expression profile and regulation of GSDMs and the important roles of this protein family in inflammatory cell death, tumorigenesis and other related diseases.
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Affiliation(s)
- Zengzhang Zheng
- The Joint Center for Infection and Immunity between Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou, 510623, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Wanyan Deng
- The Joint Center for Infection and Immunity between Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou, 510623, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xiwen Lou
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yang Bai
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Junhong Wang
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Huasong Zeng
- The Joint Center for Infection and Immunity between Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou, 510623, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Sitang Gong
- The Joint Center for Infection and Immunity between Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou, 510623, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xing Liu
- The Joint Center for Infection and Immunity between Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou, 510623, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
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20
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Li ST, Suen WJ, Kao CH, Yang MK, Yang LT. Gasdermin A3-Mediated Cell Death Causes Niche Collapse and Precocious Activation of Hair Follicle Stem Cells. J Invest Dermatol 2020; 140:2117-2128. [PMID: 32302611 DOI: 10.1016/j.jid.2020.02.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/07/2020] [Accepted: 02/28/2020] [Indexed: 12/30/2022]
Abstract
Hair follicles undergo recurrent growth, regression, and resting phases throughout postnatal life, which is supported by hair follicle stem cells. The niche components of hair follicle stem cells are important to maintain their quiescence and stemness. Gsdma3 gain-of-function mutations in mice cause chronic skin inflammation, aberrant hair cycle, and progressive hair loss, reminiscent of scarring alopecia in humans. However, the mechanism underlying these defects remains elusive. Here, we used a combined Cre/loxP and rtTA/TRE system to study the spatiotemporal effect of Gsdma3 overexpression on distinct hair cycle stages. We found that Gsdma3-mediated cell death affects anagen initiation, anagen progression, and catagen-telogen transition. Induced Gsdma3 expression causes bulge inner layer collapse and precocious hair follicle stem cell activation, leading to subsequent hair follicle degeneration. Although macrophages and dendritic cells are recruited to the bulge region, in vivo depletion of these cells using a neutralizing antibody does not alleviate cell death in the bulge or hair germ, indicating that macrophages are less likely to cause immediate hair follicle deletion. Our data suggest that dysregulated Gsdma3 causes bulge inner layer necrosis to induce club hair shedding and immediate anagen reentry without going through telogen morphology, which implicates a role for Gsdma3 in hair follicle stem cell niche maintenance.
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Affiliation(s)
- Shao-Ting Li
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan, Republic of China
| | - Wei-Jeng Suen
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan, Republic of China
| | - Cheng-Heng Kao
- Center of General Education, Chang Gung University, Taoyuan, Taiwan, Republic of China
| | - Ming-Kai Yang
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan, Republic of China
| | - Liang-Tung Yang
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan, Republic of China; Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan, Republic of China.
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21
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Harries M, Hardman J, Chaudhry I, Poblet E, Paus R. Profiling the human hair follicle immune system in lichen planopilaris and frontal fibrosing alopecia: can macrophage polarization differentiate these two conditions microscopically? Br J Dermatol 2020; 183:537-547. [PMID: 31883384 DOI: 10.1111/bjd.18854] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Frontal fibrosing alopecia (FFA) is traditionally regarded as a variant of lichen planopilaris (LPP) based on histological features. Distinct clinical presentation, demographics and epidemiology suggest that differing pathogenic factors determine the final phenotype. OBJECTIVES To map the hair follicle immune system in LPP and FFA by systematically comparing key inflammatory markers in defined hair follicle compartments. METHODS Lesional scalp biopsies from LPP and FFA and healthy controls were stained with the following immunohistochemical markers: CD1a and CD209, CD4, CD8, CD56, CD68, CD123, CXCR3, forkhead box (FOX)P3, mast cell tryptase and cKit. Macrophage polarization was explored using CD206, CD163, CD86, receptor for advanced glycation end products (RAGE), interleukin (IL)-4 and IL-13 on paired lesional and nonlesional LPP and FFA samples. RESULTS Increased numbers of CD8+ , CXCR3+ and FOXP3+ T cells and CD68+ macrophages were identified in the distal hair follicle epithelium and perifollicular mesenchyme in both LPP and FFA compared with controls. In both LPP and FFA, total and degranulated mast cells and CD123+ plasmacytoid dendritic cells were increased in the perifollicular mesenchyme adjacent to the bulge and infundibulum, whereas numbers of CD1a+ and CD209+ dendritic cells were significantly reduced in the infundibulum connective tissue sheath. However, only with CD68 staining was a significant difference between LPP and FFA identified, with greater numbers of CD68+ cells in LPP samples. Furthermore, the identified macrophage polarization markers downregulated CD86 and upregulated CD163 and IL-4 expression in lesional LPP compared with FFA samples. CONCLUSIONS This comparative immunopathological analysis is the first to profile systematically the hair follicle immune system in LPP and FFA. Our analysis highlights a potential role of macrophages in disease pathobiology and suggests that macrophage polarization may differ between LPP and FFA, allowing microscopic differentiation. Linked Comment: Kinoshita-Ise. Br J Dermatol 2020; 183:419-420.
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Affiliation(s)
- M Harries
- Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre and NIHR Biomedical Research Centre, Manchester, U.K.,Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, U.K
| | - J Hardman
- Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, U.K
| | - I Chaudhry
- Department of Pathology, Royal Liverpool University Hospital, Liverpool, U.K
| | - E Poblet
- Department of Pathology, University General Hospital of Murcia, Murcia, Spain
| | - R Paus
- Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, U.K.,Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, U.S.A
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22
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Gong W, Shi Y, Ren J. Research progresses of molecular mechanism of pyroptosis and its related diseases. Immunobiology 2019; 225:151884. [PMID: 31822435 DOI: 10.1016/j.imbio.2019.11.019] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 09/04/2019] [Accepted: 11/26/2019] [Indexed: 12/26/2022]
Abstract
Pyroptosis is a newly discovered untypical form of programmed cell death by inflammatory response, which is dependent on the classic pathway of Caspase-1 and the non-canonical pathway of Caspase-11 in mice or orthologue Caspase-4/-5 in Humans. It has been found that the Gasdermin family of protein is a key molecule in the formation of membrane pores of pyroptosis. After being cleaved by inflammatory caspases, it releases a N-terminal fragment with perforating activity to trigger pyroptosis. That pyroptosis is closely related to the occurrence and development of certain diseases. Now, the molecular mechanism of pyroptosis and pyroptosis-related diseases are reviewed.
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Affiliation(s)
- Weihua Gong
- Clinical Laboratory, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Ying Shi
- Clinical Laboratory, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Department of Clinical Immunology, Zhengzhou University, Zhengzhou 450052, China.
| | - Jingjing Ren
- Clinical Laboratory, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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23
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Broz P, Pelegrín P, Shao F. The gasdermins, a protein family executing cell death and inflammation. Nat Rev Immunol 2019; 20:143-157. [PMID: 31690840 DOI: 10.1038/s41577-019-0228-2] [Citation(s) in RCA: 821] [Impact Index Per Article: 164.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2019] [Indexed: 12/12/2022]
Abstract
The gasdermins are a family of recently identified pore-forming effector proteins that cause membrane permeabilization and pyroptosis, a lytic pro-inflammatory type of cell death. Gasdermins contain a cytotoxic N-terminal domain and a C-terminal repressor domain connected by a flexible linker. Proteolytic cleavage between these two domains releases the intramolecular inhibition on the cytotoxic domain, allowing it to insert into cell membranes and form large oligomeric pores, which disrupts ion homeostasis and induces cell death. Gasdermin-induced pyroptosis plays a prominent role in many hereditary diseases and (auto)inflammatory disorders as well as in cancer. In this Review, we discuss recent developments in gasdermin research with a focus on mechanisms that control gasdermin activation, pore formation and functional consequences of gasdermin-induced membrane permeabilization.
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Affiliation(s)
- Petr Broz
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland.
| | - Pablo Pelegrín
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), University Clinical Hospital 'Virgen de la Arrixaca', Murcia, Spain.
| | - Feng Shao
- National Institute of Biological Sciences, Beijing, China.
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24
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Ko KI, Syverson AL, Kralik RM, Choi J, DerGarabedian BP, Chen C, Graves DT. Diabetes-Induced NF-κB Dysregulation in Skeletal Stem Cells Prevents Resolution of Inflammation. Diabetes 2019; 68:2095-2106. [PMID: 31439641 PMCID: PMC6804629 DOI: 10.2337/db19-0496] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 08/09/2019] [Indexed: 12/15/2022]
Abstract
Type 1 diabetes (T1D) imposes a significant health burden by negatively affecting tissue regeneration during wound healing. The adverse effect of diabetes is attributed to high levels of inflammation, but the cellular mechanisms responsible remain elusive. In this study, we show that intrinsic skeletal stem cells (SSCs), a subset of mesenchymal stem cells, are essential for resolution of inflammation to occur during osseous healing by using genetic approaches to selectively ablate SSCs. T1D caused aberrant nuclear factor-κB (NF-κB) activation in SSCs and substantially enhanced inflammation in vivo. Constitutive or tamoxifen-induced inhibition of NF-κB in SSCs rescued the impact of diabetes on inflammation, SSC expansion, and tissue formation. In contrast, NF-κB inhibition in chondrocytes failed to reverse the effect of T1D. Mechanistically, diabetes caused defective proresolving macrophage (M2) polarization by reducing TGF-β1 expression by SSCs, which was recovered by NF-κB inhibition or exogenous TGF-β1 treatment. These data identify an underlying mechanism for altered healing in T1D and demonstrate that diabetes induces NF-κB hyperactivation in SSCs to disrupt their ability to modulate M2 polarization and resolve inflammation.
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Affiliation(s)
- Kang I Ko
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
| | - Abby L Syverson
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
| | - Richard M Kralik
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
| | - Jerry Choi
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
| | - Brett P DerGarabedian
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
| | - Chider Chen
- Department of Anatomy and Cell Biology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
| | - Dana T Graves
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
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25
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Orning P, Lien E, Fitzgerald KA. Gasdermins and their role in immunity and inflammation. J Exp Med 2019; 216:2453-2465. [PMID: 31548300 PMCID: PMC6829603 DOI: 10.1084/jem.20190545] [Citation(s) in RCA: 176] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/08/2019] [Accepted: 09/10/2019] [Indexed: 12/22/2022] Open
Abstract
Pyroptosis is an important component of the innate immune system. Gasdermin D, the mediator of pyroptosis, has been shown to be crucial for optimal defense against microbial infection. In this review, the authors discuss gasdermin D and its role in disease. The gasdermins are a family of pore-forming proteins recently implicated in the immune response. One of these proteins, gasdermin D (GSDMD), has been identified as the executioner of pyroptosis, an inflammatory form of lytic cell death that is induced upon formation of caspase-1–activating inflammasomes. The related proteins GSDME and GSDMA have also been implicated in autoimmune diseases and certain cancers. Most gasdermin proteins are believed to have pore-forming capabilities. The best-studied member, GSDMD, controls the release of the proinflammatory cytokines IL-1ß and IL-18 and pyroptotic cell death. Because of its potential as a driver of inflammation in septic shock and autoimmune diseases, GSDMD represents an attractive drug target. In this review, we discuss the gasdermin proteins with particular emphasis on GSDMD and its mechanism of action and biological significance.
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Affiliation(s)
- Pontus Orning
- Program in Innate Immunity, Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA.,Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Egil Lien
- Program in Innate Immunity, Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA.,Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Katherine A Fitzgerald
- Program in Innate Immunity, Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA .,Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
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26
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Context-dependent effect of sPLA 2-IIA induced proliferation on murine hair follicle stem cells and human epithelial cancer. EBioMedicine 2019; 48:364-376. [PMID: 31521610 PMCID: PMC6838435 DOI: 10.1016/j.ebiom.2019.08.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/23/2019] [Accepted: 08/23/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Tissue stem cells (SCs) and cancer cells proliferation is regulated by many common signalling mechanisms. These mechanisms temporally balance proliferation and differentiation events during normal tissue homeostasis and repair. However, the effect of these aberrant signalling mechanisms on the ultimate fate of SCs and cancer cells remains obscure. METHODS To evaluate the functional effects of Secretory Phospholipase A2-IIA (sPLA2-IIA) induced abnormal signalling on normal SCs and cancer cells, we have used K14-sPLA2-IIA transgenic mice hair follicle stem cells (HFSCs), DMBA/TPA induced mouse skin tumour tissues, human oral squamous cell carcinoma (OSCC) and skin squamous cell carcinoma (SCC) derived cell lines. FINDINGS Our study demonstrates that sPLA2-IIA induces rapid proliferation of HFSCs, thereby altering the proliferation dynamics leading to a complete loss of the slow cycling H2BGFP positive HFSCs. Interestingly, in vivo reversion study by JNK inhibition exhibited a significant delay in post depilation hair growth, confirming that sPLA2-IIA promotes HFSCs proliferation through JNK/c-Jun signalling. In a different cellular context, we showed increased expression of sPLA2-IIA in human OSCC and mouse skin cancer tissues. Importantly, a xenograft of sPLA2-IIA knockdown cells of OSCC and SCC cell lines showed a concomitant reduction of tumour volume in NOD-SCID mice and decreased JNK/c-Jun signalling. INTERPRETATION This study unravels how an increased proliferation induced by a common proliferation inducer (sPLA2-IIA) alters the fate of normal SCs and cancer cells distinctively through common JNK/c-Jun signalling. Thus, sPLA2-IIA can be a potential target for various diseases including cancer. FUND: This work was partly supported by the Indian Council of Medical Research (ICMR-3097) and ACTREC (42) grants.
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27
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Xiao Y, Zhang Y, Chen Y, Li J, Zhang Z, Sun Y, Shen H, Zhao Z, Huang Z, Zhang W, Chen W, Shen Z. Inhibition of MicroRNA-9-5p Protects Against Cardiac Remodeling Following Myocardial Infarction in Mice. Hum Gene Ther 2019; 30:286-301. [PMID: 30101604 DOI: 10.1089/hum.2018.059] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Follistatin-like 1 (Fstl1) protects cardiomyocytes from a broad spectrum of pathologic injuries including myocardial infarction (MI). It is worthy of note that although cardiac Fstl1 is elevated in post-MI microenvironment, its cardioprotective role is still restricted to a limited extent considering the frequency and severity of adverse cardiac remodeling following MI. We therefore propose that intrinsic Fstl1-suppressing microRNA (miRNA) may exist in the heart and its neutralization may further facilitate post-MI recovery. Here, miR-9-5p is predicted as one of the potential Fstl1-targeting miRNAs whose expression is decreased in ischemic myocardium and reversely correlated with Fstl1. Luciferase activity assay further validated Fstl1 as a direct target of miR-9-5p. In addition, forced expression of miR-9-5p in H9c2 cells is concurrent with diminished expression of Fstl1 and vice versa. Importantly, transfection of miR-9-5p mimics in hypoxic H9c2 cells exacerbates cardiac cell death, lactate dehydrogenase release, reactive oxygen species accumulation, and malonyldialdehyde concentration. More importantly, in vivo silencing of miR-9-5p by a specific antagomir in a murine acute MI model effectively preserves post-MI heart function with attenuated fibrosis and inflammatory response. Further studies demonstrated that antagomir treatment stabilizes Fstl1 expression as well as blocks cardiac cell death and reactive oxygen species generation in both ischemia-challenged hearts and hypoxia-treated cardiomyoblasts. Finally, cytoprotection against hypoxic challenge by miR-9-5p inhibitor is partially reversed by knockdown of Fstl1, indicating a novel role of miR-9-5p/Fstl1 axis in survival defense against hypoxic challenge. In summary, these findings identified miR-9-5p as a mediator of hypoxic injury in cardiomyoblasts and miR-9-5p suppression prevents cardiac remodeling after acute MI, providing a potential strategy for early treatment against MI.
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Affiliation(s)
- Yimin Xiao
- 1 Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
- 2 Department of Cardiovascular Surgery, Shanghai Yoda Cardiothoracic Hospital, Shanghai, China
| | - Yanxia Zhang
- 1 Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Yueqiu Chen
- 1 Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Jingjing Li
- 1 Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Zihan Zhang
- 1 Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Yimin Sun
- 1 Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Han Shen
- 1 Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Zhenao Zhao
- 1 Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Zan Huang
- 3 Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agriculture University, Nanjing, China
| | - Wencheng Zhang
- 4 The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, China
| | - Weiqian Chen
- 1 Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
| | - Zhenya Shen
- 1 Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, China
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28
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Chen Q, Shi P, Wang D, Liu Q, Li X, Wang Y, Zou D, Huang Z, Gao X, Lin Z. Epidermis-Activated Gasdermin-A3 Enhances Thermogenesis of Brown Adipose Tissue through IL-6/Stat3 Signaling. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:1041-1052. [PMID: 30790561 DOI: 10.1016/j.ajpath.2019.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 01/07/2019] [Accepted: 01/24/2019] [Indexed: 12/17/2022]
Abstract
Missense mutations in the gasdermin-A3 (Gsdma3) gene are associated with skin inflammation and hair loss in mice. However, the physiological function of Gsdma3 remains unclear. Herein, we reported that mice carrying the Gsdma3 Y344H mutation that encodes a presumptive activated form of Gsdma3 show increased heat production along with lower body fat percentages. Detailed analysis indicated that this metabolic phenotype is mediated by serum IL-6-induced up-regulation of thermogenesis in brown adipose tissue. The mutant form of Gsdma3 promotes the expression of IL-6 in the epidermis in a c-Jun N-terminal kinase (JNK) signaling-dependent manner. The higher whole-body heat production in alopecia and excoriation mice could be suppressed by an IL-6 receptor/GP130 inhibitor. Our results uncovered Gsdma3/IL-6-dependent cross talk between the skin and brown adipose tissue.
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Affiliation(s)
- Qin Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China; Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Peiliang Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Dingyu Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Qiyao Liu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Xu Li
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Yufang Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Dayuan Zou
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China
| | - Zan Huang
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, Nanjing Agriculture University, Nanjing, China
| | - Xiang Gao
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China.
| | - Zhaoyu Lin
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, Model Animal Research Center, Nanjing University, Nanjing, China.
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29
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Shen H, Cui G, Li Y, Ye W, Sun Y, Zhang Z, Li J, Xu G, Zeng X, Zhang Y, Zhang W, Huang Z, Chen W, Shen Z. Follistatin-like 1 protects mesenchymal stem cells from hypoxic damage and enhances their therapeutic efficacy in a mouse myocardial infarction model. Stem Cell Res Ther 2019; 10:17. [PMID: 30635025 PMCID: PMC6330478 DOI: 10.1186/s13287-018-1111-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 12/16/2018] [Accepted: 12/17/2018] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Cell therapy remains the most promising approach against ischemic heart injury. However, poor survival of engrafted cells in ischemic sites diminishes its therapeutic efficacy. Follistatin-like 1 (Fstl1) is documented as a novel pro-survival cardiokine for cardiomyocytes, and it is protective during ischemic heart injury. In the present study, we characterize the potential of Fstl1 as an effective strategy to enhance hypoxia resistance of donor cells and optimize stem cell-based therapy. METHODS Murine bone marrow-derived mesenchymal stem cells (MSCs) were expanded in monolayer culture and characterized by flow cytometry. MSCs were subjected to hypoxia to mimic cardiac ischemic environment. Expression of Fstl1 was monitored 0, 24, and 48 h following hypoxia. Constitutive expression of Fstl1 in MSCs was achieved by lentivirus-mediated Fstl1 overexpression. Genetically modified MSCs were further collected for cell death and proliferation assay following 48 h of hypoxic treatment. Acute myocardial infarction (MI) model was created by ligating the left anterior descending coronary artery, while control MSCs (MSCs-mCherry) or Fstl1-overexpressing MSCs (MSCs-Fstl1) were injected into the peri-infarct zone simultaneously. Subsequently, retention of the donor cells was evaluated on post-therapy 1, 3, & 7 days. Finally, myocardial function, infarct size, inflammation, and neovascularization of the infarcted hearts were calculated thereafter. RESULTS Expression of Fstl1 in hypoxic MSCs declines dramatically in a time-dependent manner. In vitro study further demonstrated that Fstl1 promotes survival and proliferation of hypoxic MSCs. Moreover, Fstl1 significantly prolongs MSC survival/retention after implantation. Finally, transplantation with Fstl1-overexpressing MSCs significantly improves post-MI cardiac function by limiting scar formation, reducing inflammatory response, and enhancing neovascularization. CONCLUSIONS Our results suggest Fstl1 is an intrinsic cardiokine promoting survival and proliferation of MSCs, thereby optimizing their engraftment and therapeutic efficacy during cell therapy.
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Affiliation(s)
- Han Shen
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, 215006 China
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Soochow University, Suzhou, 215006 China
| | - Guanghao Cui
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, 215006 China
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Soochow University, Suzhou, 215006 China
| | - Yanqiong Li
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, 215006 China
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Soochow University, Suzhou, 215006 China
| | - Wenxue Ye
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Soochow University, Suzhou, 215006 China
| | - Yimin Sun
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, 215006 China
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Soochow University, Suzhou, 215006 China
| | - Zihan Zhang
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, 215006 China
| | - Jingjing Li
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, 215006 China
| | - Guiying Xu
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, 215006 China
| | - Xiansheng Zeng
- Department of Cardiology of the First Affiliated Hospital, Soochow University, Suzhou, 215006 China
| | - Yanxia Zhang
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, 215006 China
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Soochow University, Suzhou, 215006 China
| | - Wencheng Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital of Shandong University, Jinan, China
| | - Zan Huang
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210000 China
| | - Weiqian Chen
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, 215006 China
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Soochow University, Suzhou, 215006 China
| | - Zhenya Shen
- Institute for Cardiovascular Science and Department of Cardiovascular Surgery of the First Affiliated Hospital, Soochow University, Suzhou, 215006 China
- Department of Cardiovascular Surgery of the First Affiliated Hospital and Institute for Cardiovascular Science, Soochow University, Suzhou, 215006 China
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Feng S, Fox D, Man SM. Mechanisms of Gasdermin Family Members in Inflammasome Signaling and Cell Death. J Mol Biol 2018; 430:3068-3080. [PMID: 29990470 DOI: 10.1016/j.jmb.2018.07.002] [Citation(s) in RCA: 250] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 06/25/2018] [Accepted: 07/04/2018] [Indexed: 12/16/2022]
Abstract
The Gasdermin (GSDM) family consists of Gasdermin A (GSDMA), Gasdermin B (GSDMB), Gasdermin C (GSDMC), Gasdermin D (GSDMD), Gasdermin E (GSDME) and Pejvakin (PJVK). GSDMD is activated by inflammasome-associated inflammatory caspases. Cleavage of GSDMD by human or mouse caspase-1, human caspase-4, human caspase-5, and mouse caspase-11 liberates the N-terminal effector domain from the C-terminal inhibitory domain. The N-terminal domain oligomerizes in the cell membrane and forms a pore of 10-16 nm in diameter, through which substrates of a smaller diameter, such as interleukin-1β and interleukin-18, are secreted. The increasing abundance of membrane pores ultimately leads to membrane rupture and pyroptosis, releasing the entire cellular content. Other than GSDMD, the N-terminal domain of all GSDMs, with the exception of PJVK, have the ability to form pores. There is evidence to suggest that GSDMB and GSDME are cleaved by apoptotic caspases. Here, we review the mechanistic functions of GSDM proteins with respect to their expression and signaling profile in the cell, with more focused discussions on inflammasome activation and cell death.
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Affiliation(s)
- Shouya Feng
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Daniel Fox
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Si Ming Man
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, Australia.
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Miao Y, Qu Q, Jiang W, Liu XM, Shi PL, Fan ZX, Du LJ, Wang GF, Liu XN, Guo ZH, Liu Y, Liu F, Liu YR, Hu ZQ. Identification of Functional Patterns of Androgenetic Alopecia Using Transcriptome Profiling in Distinct Locations of Hair Follicles. J Invest Dermatol 2018; 138:972-975. [DOI: 10.1016/j.jid.2017.10.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 10/19/2017] [Accepted: 10/23/2017] [Indexed: 11/30/2022]
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Moreno-Moral A, Bagnati M, Koturan S, Ko JH, Fonseca C, Harmston N, Game L, Martin J, Ong V, Abraham DJ, Denton CP, Behmoaras J, Petretto E. Changes in macrophage transcriptome associate with systemic sclerosis and mediate GSDMA contribution to disease risk. Ann Rheum Dis 2018; 77:596-601. [PMID: 29348297 PMCID: PMC5890626 DOI: 10.1136/annrheumdis-2017-212454] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 12/05/2017] [Accepted: 12/27/2017] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Several common and rare risk variants have been reported for systemic sclerosis (SSc), but the effector cell(s) mediating the function of these genetic variants remains to be elucidated. While innate immune cells have been proposed as the critical targets to interfere with the disease process underlying SSc, no studies have comprehensively established their effector role. Here we investigated the contribution of monocyte-derived macrophages (MDMs) in mediating genetic susceptibility to SSc. METHODS We carried out RNA sequencing and genome-wide genotyping in MDMs from 57 patients with SSc and 15 controls. Our differential expression and expression quantitative trait locus (eQTL) analysis in SSc was further integrated with epigenetic, expression and eQTL data from skin, monocytes, neutrophils and lymphocytes. RESULTS We identified 602 genes upregulated and downregulated in SSc macrophages that were significantly enriched for genes previously implicated in SSc susceptibility (P=5×10-4), and 270 cis-regulated genes in MDMs. Among these, GSDMA was reported to carry an SSc risk variant (rs3894194) regulating expression of neighbouring genes in blood. We show that GSDMA is upregulated in SSc MDMs (P=8.4×10-4) but not in the skin, and is a significant eQTL in SSc macrophages and lipopolysaccharide/interferon gamma (IFNγ)-stimulated monocytes. Furthermore, we identify an SSc macrophage transcriptome signature characterised by upregulation of glycolysis, hypoxia and mTOR signalling and a downregulation of IFNγ response pathways. CONCLUSIONS Our data further establish the link between macrophages and SSc, and suggest that the contribution of the rs3894194 risk variant to SSc susceptibility can be mediated by GSDMA expression in macrophages.
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Affiliation(s)
- Aida Moreno-Moral
- Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Marta Bagnati
- Centre for Complement and Inflammation Research, Hammersmith Hospital, Imperial College London, London, UK
| | - Surya Koturan
- Centre for Complement and Inflammation Research, Hammersmith Hospital, Imperial College London, London, UK
| | - Jeong-Hun Ko
- Centre for Complement and Inflammation Research, Hammersmith Hospital, Imperial College London, London, UK
| | - Carmen Fonseca
- Division of Medicine, Department of Inflammation, Centre for Rheumatology and Connective Tissue Diseases, Royal Free and University College Medical School, University College London, London, UK
| | - Nathan Harmston
- Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Laurence Game
- Genomics Laboratory, MRC London Institute of Medical Sciences, Hammersmith Hospital, Imperial College London, London, UK
| | - Javier Martin
- Instituto de Parasitología y Biomedicina López Neyra, Consejo Superior de Investigaciones Cientıficas, Granada, Spain
| | - Voon Ong
- Division of Medicine, Department of Inflammation, Centre for Rheumatology and Connective Tissue Diseases, Royal Free and University College Medical School, University College London, London, UK
| | - David J Abraham
- Division of Medicine, Department of Inflammation, Centre for Rheumatology and Connective Tissue Diseases, Royal Free and University College Medical School, University College London, London, UK
| | - Christopher P Denton
- Division of Medicine, Department of Inflammation, Centre for Rheumatology and Connective Tissue Diseases, Royal Free and University College Medical School, University College London, London, UK
| | - Jacques Behmoaras
- Centre for Complement and Inflammation Research, Hammersmith Hospital, Imperial College London, London, UK
| | - Enrico Petretto
- Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore.,Faculty of Medicine, Medical Research Council (MRC) London Institute of Medical Sciences, Imperial College London, London, UK
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Kovacs SB, Miao EA. Gasdermins: Effectors of Pyroptosis. Trends Cell Biol 2017; 27:673-684. [PMID: 28619472 PMCID: PMC5565696 DOI: 10.1016/j.tcb.2017.05.005] [Citation(s) in RCA: 789] [Impact Index Per Article: 112.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 05/18/2017] [Accepted: 05/19/2017] [Indexed: 12/20/2022]
Abstract
Pyroptosis is a form of lytic programmed cell death initiated by inflammasomes, which detect cytosolic contamination or perturbation. This drives activation of caspase-1 or caspase-11/4/5, which cleave gasdermin D, separating its N-terminal pore-forming domain (PFD) from the C-terminal repressor domain (RD). The PFD oligomerizes to form large pores in the membrane that drive swelling and membrane rupture. Gasdermin D is one of six (in humans) gasdermin family members; several other gasdermins have also been shown to form pores that cause pyroptosis after cleavage to activate their PFDs. One of these, gasdermin E, is activated by caspase-3 cleavage. We review our current understanding of pyroptosis as well as current knowledge of the gasdermin family.
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Affiliation(s)
- Stephen B Kovacs
- Department of Microbiology and Immunology, Lineberger Comprehensive Cancer Center, and Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Edward A Miao
- Department of Microbiology and Immunology, Lineberger Comprehensive Cancer Center, and Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
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Das S, Miller M, Broide DH. Chromosome 17q21 Genes ORMDL3 and GSDMB in Asthma and Immune Diseases. Adv Immunol 2017; 135:1-52. [PMID: 28826527 DOI: 10.1016/bs.ai.2017.06.001] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chromosome 17q21 contains a cluster of genes including ORMDL3 and GSDMB, which have been highly linked to asthma in genome-wide association studies. ORMDL3 is localized to the endoplasmic reticulum and regulates downstream pathways including sphingolipids, metalloproteases, remodeling genes, and chemokines. ORMDL3 inhibits serine palmitoyl-CoA transferase, the rate-limiting enzyme for sphingolipid biosynthesis. In addition, ORMDL3 activates the ATF6α branch of the unfolded protein response which regulates SERCA2b and IL-6, pathways of potential importance to asthma. The SNP-linking chromosome 17q21 to asthma is associated with increased ORMDL3 and GSDMB expression. Mice expressing either increased levels of human ORMDL3, or human GSDMB, have an asthma phenotype characterized by increased airway responsiveness and increased airway remodeling (increased smooth muscle and fibrosis) in the absence of airway inflammation. GSDMB regulates expression of 5-LO and TGF-β1 which are known pathways involved in the pathogenesis of asthma. GSDMB is one of four members of the GSDM family (GSDMA, GSDMB, GSDMC, and GSDMD). GSDMD (located on chromosome 8q24 and not linked to asthma) has emerged as a key mediator of pyroptosis. GSDMD is a key component of the NLPR3 inflammasome and is required for its activation. GSDMD undergoes proteolytic cleavage by caspase-1 to release its N-terminal fragment, which in turn mediates pyroptosis and IL-1β secretion. Chromosome 17q21 has not only been linked to asthma but also to type 1 diabetes, inflammatory bowel disease, and primary biliary cirrhosis suggesting that future insights into the biology of genes located in this region will increase our understanding of these diseases.
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Affiliation(s)
- Sudipta Das
- University of California, San Diego, CA, United States
| | - Marina Miller
- University of California, San Diego, CA, United States
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35
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Gsdma3 is required for mammary gland development in mice. Histochem Cell Biol 2017; 147:575-583. [DOI: 10.1007/s00418-017-1542-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2017] [Indexed: 10/20/2022]
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Shi J, Gao W, Shao F. Pyroptosis: Gasdermin-Mediated Programmed Necrotic Cell Death. Trends Biochem Sci 2016; 42:245-254. [PMID: 27932073 DOI: 10.1016/j.tibs.2016.10.004] [Citation(s) in RCA: 1852] [Impact Index Per Article: 231.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 10/16/2016] [Accepted: 10/17/2016] [Indexed: 02/08/2023]
Abstract
Pyroptosis was long regarded as caspase-1-mediated monocyte death in response to certain bacterial insults. Caspase-1 is activated upon various infectious and immunological challenges through different inflammasomes. The discovery of caspase-11/4/5 function in sensing intracellular lipopolysaccharide expands the spectrum of pyroptosis mediators and also reveals that pyroptosis is not cell type specific. Recent studies identified the pyroptosis executioner, gasdermin D (GSDMD), a substrate of both caspase-1 and caspase-11/4/5. GSDMD represents a large gasdermin family bearing a novel membrane pore-forming activity. Thus, pyroptosis is redefined as gasdermin-mediated programmed necrosis. Gasdermins are associated with various genetic diseases, but their cellular function and mechanism of activation (except for GSDMD) are unknown. The gasdermin family suggests a new area of research on pyroptosis function in immunity, disease, and beyond.
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Affiliation(s)
- Jianjin Shi
- National Institute of Biological Sciences, Number 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Wenqing Gao
- National Institute of Biological Sciences, Number 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Feng Shao
- National Institute of Biological Sciences, Number 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China.
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37
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Misiak-Galazka M, Olszewska M, Rudnicka L. Lichen planopilaris in three generations: grandmother, mother, and daughter - a genetic link? Int J Dermatol 2015; 55:913-5. [PMID: 26694527 DOI: 10.1111/ijd.13146] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 05/18/2015] [Accepted: 06/29/2015] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Lidia Rudnicka
- Department of Dermatology, Medical University of Warsaw, Warsaw, Poland
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38
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Cleavage of GSDMD by inflammatory caspases determines pyroptotic cell death. Nature 2015; 526:660-5. [PMID: 26375003 DOI: 10.1038/nature15514] [Citation(s) in RCA: 3844] [Impact Index Per Article: 427.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 08/25/2015] [Indexed: 02/07/2023]
Abstract
Inflammatory caspases (caspase-1, -4, -5 and -11) are critical for innate defences. Caspase-1 is activated by ligands of various canonical inflammasomes, and caspase-4, -5 and -11 directly recognize bacterial lipopolysaccharide, both of which trigger pyroptosis. Despite the crucial role in immunity and endotoxic shock, the mechanism for pyroptosis induction by inflammatory caspases is unknown. Here we identify gasdermin D (Gsdmd) by genome-wide clustered regularly interspaced palindromic repeat (CRISPR)-Cas9 nuclease screens of caspase-11- and caspase-1-mediated pyroptosis in mouse bone marrow macrophages. GSDMD-deficient cells resisted the induction of pyroptosis by cytosolic lipopolysaccharide and known canonical inflammasome ligands. Interleukin-1β release was also diminished in Gsdmd(-/-) cells, despite intact processing by caspase-1. Caspase-1 and caspase-4/5/11 specifically cleaved the linker between the amino-terminal gasdermin-N and carboxy-terminal gasdermin-C domains in GSDMD, which was required and sufficient for pyroptosis. The cleavage released the intramolecular inhibition on the gasdermin-N domain that showed intrinsic pyroptosis-inducing activity. Other gasdermin family members were not cleaved by inflammatory caspases but shared the autoinhibition; gain-of-function mutations in Gsdma3 that cause alopecia and skin defects disrupted the autoinhibition, allowing its gasdermin-N domain to trigger pyroptosis. These findings offer insight into inflammasome-mediated immunity/diseases and also change our understanding of pyroptosis and programmed necrosis.
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39
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Lin HY, Lin PH, Wu SH, Yang LT. Inducible expression of gasdermin A3 in the epidermis causes epidermal hyperplasia and skin inflammation. Exp Dermatol 2015; 24:897-9. [DOI: 10.1111/exd.12797] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2015] [Indexed: 12/12/2022]
Affiliation(s)
- Hsien-Yi Lin
- Institute of Cellular and System Medicine; National Health Research Institutes; Zhunan Miaoli County Taiwan
| | - Pei-Hsuan Lin
- Institute of Cellular and System Medicine; National Health Research Institutes; Zhunan Miaoli County Taiwan
| | - Shu-Hui Wu
- Institute of Cellular and System Medicine; National Health Research Institutes; Zhunan Miaoli County Taiwan
| | - Liang-Tung Yang
- Institute of Cellular and System Medicine; National Health Research Institutes; Zhunan Miaoli County Taiwan
- Graduate Institute of Molecular Systems Biomedicine; China Medical University; Taichung Taiwan
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40
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Abstract
Gasdermin A3 (Gsdma3) was originally identified in association with hair-loss phenotype in mouse mutants. Our previous study found that AE mutant mice, with a Y344H substitution at the C-terminal domain of Gsdma3, display inflammation-dependent alopecia and excoriation [Zhou et al. (2012) Am. J. Pathol. 180, 763-774]. Interestingly, we found that the newly-generated null mutant of Gsdma3 mice did not display the skin dysmorphology, indicating that Gsdma3 is not essential for differentiation of epidermal cells and maintenance of the hair cycle in normal physiological conditions. Consistently, human embryonic kidney (HEK)293 and HaCaT cells transfected with wild-type (WT) Gsdma3 did not show abnormal morphology. However, Gsdma3 Y344H mutation induced autophagy. Gsdma3 N-terminal domain, but not the C-terminal domain, also displayed the similar pro-autophagic activity. The Gsdma3 Y344H mutant protein and N-terminal domain-induced autophagy was associated with mitochondria and ROS generation. Co-expression of C-terminal domain reversed the cell autophagy induced by N-terminal domain. Moreover, C-terminal domain could be co-precipitated with N-terminal domain. These data indicated that the potential pro-autophagic activity of WT Gsdma3 protein is suppressed through an intramolecular inhibition mechanism. Studies on other members of the GSDM family suggested this mechanism is conserved in several sub-families.
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41
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Lin PH, Lin HY, Kuo CC, Yang LT. N-terminal functional domain of Gasdermin A3 regulates mitochondrial homeostasis via mitochondrial targeting. J Biomed Sci 2015; 22:44. [PMID: 26100518 PMCID: PMC4477613 DOI: 10.1186/s12929-015-0152-0] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 05/27/2015] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND The epidermis forms a critical barrier that is maintained by orchestrated programs of proliferation, differentiation, and cell death. Gene mutations that disturb this turnover process may cause skin diseases. Human GASDERMIN A (GSDMA) is frequently silenced in gastric cancer cell lines and its overexpression has been reported to induce apoptosis. GSDMA has also been linked with airway hyperresponsiveness in genetic association studies. The function of GSDMA in the skin was deduced by dominant mutations in mouse gasdermin A3 (Gsdma3), which caused skin inflammation and hair loss. However, the mechanism for the autosomal dominance of Gsdma3 mutations and the mode of Gsdma3's action remain unanswered. RESULTS We demonstrated a novel function of Gsdma3 in modulating mitochondrial oxidative stress. We showed that Gsdma3 is regulated by intramolecular fold-back inhibition, which is disrupted by dominant mutations in the C-terminal domain. The unmasked N-terminal domain of Gsdma3 associates with Hsp90 and is delivered to mitochondrial via mitochondrial importer receptor Tom70, where it interacts with the mitochondrial chaperone Trap1 and causes increased production of mitochondrial reactive oxygen species (ROS), dissipation of mitochondrial membrane potential, and mitochondrial permeability transition (MPT). Overexpression of the C-terminal domain of Gsdma3 as well as pharmacological interventions of mitochondrial translocation, ROS production, and MPT pore opening alleviate the cell death induced by Gsdma3 mutants. CONCLUSIONS Our results indicate that the genetic mutations in the C-terminal domain of Gsdma3 are gain-of-function mutations which unmask the N-terminal functional domain of Gsdma3. Gsdma3 regulates mitochondrial oxidative stress through mitochondrial targeting. Since mitochondrial ROS has been shown to promote epidermal differentiation, we hypothesize that Gsdma3 regulates context-dependent response of keratinocytes to differentiation and cell death signals by impinging on mitochondria.
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Affiliation(s)
- Pei-Hsuan Lin
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Rd., Zhunan, Miaoli County, 35053, Taiwan.
| | - Hsien-Yi Lin
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Rd., Zhunan, Miaoli County, 35053, Taiwan.
| | - Cheng-Chin Kuo
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Rd., Zhunan, Miaoli County, 35053, Taiwan.
| | - Liang-Tung Yang
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Rd., Zhunan, Miaoli County, 35053, Taiwan. .,Graduate Institute of Molecular Systems Biomedicine, China Medical University, 91 Hsueh-Shih Rd, Taichung, 40402, Taiwan.
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42
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Bai X, Lei M, Shi J, Yu Y, Qiu W, Lai X, Liu Y, Yang T, Yang L, Widelitz RB, Chuong CM, Lian X. Roles of GasderminA3 in Catagen-Telogen Transition During Hair Cycling. J Invest Dermatol 2015; 135:2162-2172. [PMID: 25860385 PMCID: PMC4537385 DOI: 10.1038/jid.2015.147] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 03/03/2015] [Accepted: 03/30/2015] [Indexed: 01/08/2023]
Abstract
Hair follicles undergo cyclic behavior through regression (catagen), rest (telogen) and regeneration (anagen) during postnatal life. The hair cycle transition is strictly regulated by the autonomous and extrinsic molecular environment. However, whether there is a switch controlling catagen-telogen transition remains largely unknown. Here we show that hair follicles cycle from catagen to the next anagen without transitioning through a morphologically typical telogen after Gsdma3 mutation. This leaves an ESLS (epithelial strand-like structure) during the time period corresponding to telogen phase in WT mice. Molecularly, Wnt10b is upregulated in Gsdma3 mutant mice. Restoration of Gsdma3 expression in AE (alopecia and excoriation) mouse skin rescues hair follicle telogen entry and significantly decreases the Wnt10b-mediated Wnt/β-catenin signaling pathway. Overexpression of Wnt10b inhibits telogen entry by increasing epithelial strand cell proliferation. Subsequently, hair follicles with a Gsdma3 mutation enter the second anagen simultaneously as WT mice. Hair follicles cannot enter the second anagen with ectopic WT Gsdma3 overexpression. A luciferase reporter assay proves Gsdma3 directly suppresses Wnt signaling. Our findings suggest Gsdma3 plays an important role in catagen-telogen transition by balancing the Wnt signaling pathway, and that morphologically typical telogen is not essential for the initiation of a new hair cycle.
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Affiliation(s)
- Xiufeng Bai
- Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China
| | - Mingxing Lei
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, People's Republic of China; '111' Project Laboratory of Biomechanics and Tissue Repair, Bioengineering College, Chongqing University, Chongqing, People's Republic of China; Department of Pathology, University of Southern California, Los Angeles, California, USA.
| | - Jiazhong Shi
- Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China
| | - Yu Yu
- Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China
| | - Weiming Qiu
- Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China
| | - Xiangdong Lai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, People's Republic of China; '111' Project Laboratory of Biomechanics and Tissue Repair, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Yingxin Liu
- Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China
| | - Tian Yang
- Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China
| | - Li Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing, People's Republic of China; '111' Project Laboratory of Biomechanics and Tissue Repair, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Randall B Widelitz
- Department of Pathology, University of Southern California, Los Angeles, California, USA
| | - Cheng-Ming Chuong
- Department of Pathology, University of Southern California, Los Angeles, California, USA
| | - Xiaohua Lian
- Department of Cell Biology, Third Military Medical University, Chongqing, People's Republic of China.
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43
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Kizil C, Kyritsis N, Brand M. Effects of inflammation on stem cells: together they strive? EMBO Rep 2015; 16:416-26. [PMID: 25739812 DOI: 10.15252/embr.201439702] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 02/19/2015] [Indexed: 12/12/2022] Open
Abstract
Inflammation entails a complex set of defense mechanisms acting in concert to restore the homeostatic balance in organisms after damage or pathogen invasion. This immune response consists of the activity of various immune cells in a highly complex manner. Inflammation is a double-edged sword as it is reported to have both detrimental and beneficial consequences. In this review, we discuss the effects of inflammation on stem cell activity, focusing primarily on neural stem/progenitor cells in mammals and zebrafish. We also give a brief overview of the effects of inflammation on other stem cell compartments, exemplifying the positive and negative role of inflammation on stemness. The majority of the chronic diseases involve an unremitting phase of inflammation due to improper resolution of the initial pro-inflammatory response that impinges on the stem cell behavior. Thus, understanding the mechanisms of crosstalk between the inflammatory milieu and tissue-resident stem cells is an important basis for clinical efforts. Not only is it important to understand the effect of inflammation on stem cell activity for further defining the etiology of the diseases, but also better mechanistic understanding is essential to design regenerative therapies that aim at micromanipulating the inflammatory milieu to offset the negative effects and maximize the beneficial outcomes.
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Affiliation(s)
- Caghan Kizil
- German Centre for Neurodegenerative Diseases (DZNE) Dresden within the Helmholtz Association, Dresden, Germany DFG-Center for Regenerative Therapies Dresden, Cluster of Excellence (CRTD) of the Technische Universität Dresden, Dresden, Germany
| | - Nikos Kyritsis
- DFG-Center for Regenerative Therapies Dresden, Cluster of Excellence (CRTD) of the Technische Universität Dresden, Dresden, Germany
| | - Michael Brand
- DFG-Center for Regenerative Therapies Dresden, Cluster of Excellence (CRTD) of the Technische Universität Dresden, Dresden, Germany
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44
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Keller MF, Reiner AP, Okada Y, van Rooij FJA, Johnson AD, Chen MH, Smith AV, Morris AP, Tanaka T, Ferrucci L, Zonderman AB, Lettre G, Harris T, Garcia M, Bandinelli S, Qayyum R, Yanek LR, Becker DM, Becker LC, Kooperberg C, Keating B, Reis J, Tang H, Boerwinkle E, Kamatani Y, Matsuda K, Kamatani N, Nakamura Y, Kubo M, Liu S, Dehghan A, Felix JF, Hofman A, Uitterlinden AG, van Duijn CM, Franco OH, Longo DL, Singleton AB, Psaty BM, Evans MK, Cupples LA, Rotter JI, O'Donnell CJ, Takahashi A, Wilson JG, Ganesh SK, Nalls MA. Trans-ethnic meta-analysis of white blood cell phenotypes. Hum Mol Genet 2014; 23:6944-60. [PMID: 25096241 DOI: 10.1093/hmg/ddu401] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
White blood cell (WBC) count is a common clinical measure used as a predictor of certain aspects of human health, including immunity and infection status. WBC count is also a complex trait that varies among individuals and ancestry groups. Differences in linkage disequilibrium structure and heterogeneity in allelic effects are expected to play a role in the associations observed between populations. Prior genome-wide association study (GWAS) meta-analyses have identified genomic loci associated with WBC and its subtypes, but much of the heritability of these phenotypes remains unexplained. Using GWAS summary statistics for over 50 000 individuals from three diverse populations (Japanese, African-American and European ancestry), a Bayesian model methodology was employed to account for heterogeneity between ancestry groups. This approach was used to perform a trans-ethnic meta-analysis of total WBC, neutrophil and monocyte counts. Ten previously known associations were replicated and six new loci were identified, including several regions harboring genes related to inflammation and immune cell function. Ninety-five percent credible interval regions were calculated to narrow the association signals and fine-map the putatively causal variants within loci. Finally, a conditional analysis was performed on the most significant SNPs identified by the trans-ethnic meta-analysis (MA), and nine secondary signals within loci previously associated with WBC or its subtypes were identified. This work illustrates the potential of trans-ethnic analysis and ascribes a critical role to multi-ethnic cohorts and consortia in exploring complex phenotypes with respect to variants that lie outside the European-biased GWAS pool.
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Affiliation(s)
- Margaux F Keller
- Laboratory of Neurogenetics Department of Biological Anthropology, Temple University, Philadelphia, PA, USA
| | - Alexander P Reiner
- Department of Epidemiology Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Yukinori Okada
- Laboratory for Statistical Analysis Department of Human Genetics and Disease Diversity, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Frank J A van Rooij
- Department of Epidemiology Consortium for Healthy Aging (NGI-NCHA), The Netherlands Genomics Initiative, Leiden, The Netherlands
| | - Andrew D Johnson
- Cardiovascular Epidemiology and Human Genomics Branch, NHLBI Division of Intramural Research, Bethesda, MD, USA NHLBI Framingham Heart Study, Bethesda, MD, USA
| | - Ming-Huei Chen
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA NHLBI Framingham Heart Study, Bethesda, MD, USA
| | - Albert V Smith
- Icelandic Heart Association, Kopavogur, Iceland University of Iceland, Reykjavik, Iceland
| | - Andrew P Morris
- Genetic and Genomic Epidemiology Unit, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK Department of Biostatistics, University of Liverpool, Liverpool, UK
| | | | | | - Alan B Zonderman
- Behavioral Epidemiology Section, Laboratory of Epidemiology & Population Sciences, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD, USA
| | - Guillaume Lettre
- Montreal Heart Institute, Montréal, Canada Département de Médecine, Université de Montréal, Montréal, Canada
| | - Tamara Harris
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - Melissa Garcia
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - Stefania Bandinelli
- Geriatric Rehabilitation Unit, Azienda Sanitaria Firenze (ASF), Florence, Italy
| | - Rehan Qayyum
- GeneSTAR Research Program, Division of General Internal Medicine
| | - Lisa R Yanek
- GeneSTAR Research Program, Division of General Internal Medicine
| | - Diane M Becker
- GeneSTAR Research Program, Division of General Internal Medicine
| | - Lewis C Becker
- GeneSTAR Research Program, Division of General Internal Medicine Division of Cardiology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Charles Kooperberg
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Brendan Keating
- Center for Applied Genomics, Children's Hospital of Philadelphia, PA, USA Department of Pediatrics, University of Pennsylvania, PA, USA
| | - Jared Reis
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, MD, USA
| | - Hua Tang
- Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Eric Boerwinkle
- The Brown Foundation, Institute of Molecular Medicine for the Prevention of Human Diseases, University of Texas, Houston, TX, USA
| | | | - Koichi Matsuda
- Laboratory of Molecular Medicine, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | | | - Yusuke Nakamura
- Laboratory of Molecular Medicine, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan Department of Medicine Department of Surgery, Center for Personalized Therapeutics, The University of Chicago, Chicago, IL, USA
| | - Michiaki Kubo
- Laboratory for Genotyping Development, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Simin Liu
- Department of Epidemiology Department of Medicine, Brown University, Providence, RI, USA
| | - Abbas Dehghan
- Department of Epidemiology Consortium for Healthy Aging (NGI-NCHA), The Netherlands Genomics Initiative, Leiden, The Netherlands
| | - Janine F Felix
- Department of Epidemiology Consortium for Healthy Aging (NGI-NCHA), The Netherlands Genomics Initiative, Leiden, The Netherlands
| | - Albert Hofman
- Department of Epidemiology Consortium for Healthy Aging (NGI-NCHA), The Netherlands Genomics Initiative, Leiden, The Netherlands
| | - André G Uitterlinden
- Department of Epidemiology Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands Consortium for Healthy Aging (NGI-NCHA), The Netherlands Genomics Initiative, Leiden, The Netherlands
| | - Cornelia M van Duijn
- Department of Epidemiology Consortium for Healthy Aging (NGI-NCHA), The Netherlands Genomics Initiative, Leiden, The Netherlands
| | - Oscar H Franco
- Department of Epidemiology ErasmusAGE, Department of Epidemiology Consortium for Healthy Aging (NGI-NCHA), The Netherlands Genomics Initiative, Leiden, The Netherlands
| | | | | | - Bruce M Psaty
- Cardiovascular Health Research Unit Department of Medicine Department of Epidemiology and Health Services, University of Washington, Seattle, WA, USA Group Health Research Institute, Group Health Cooperative, Seattle, WA, USA
| | - Michelle K Evans
- Health Disparities Research Section, Clinical Research Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - L Adrienne Cupples
- NHLBI Framingham Heart Study, Bethesda, MD, USA Boston University Department of Statistics, Boston, MA, USA
| | - Jerome I Rotter
- Institute for Translational Genomics and Population Sciences, Los Angeles BioMedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA, USA Division of Genetic Outcomes, Department of Pediatrics, Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Christopher J O'Donnell
- Cardiovascular Epidemiology and Human Genomics Branch, NHLBI Division of Intramural Research, Bethesda, MD, USA NHLBI Framingham Heart Study, Bethesda, MD, USA
| | | | - James G Wilson
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, USA
| | - Santhi K Ganesh
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA Department of Human Genetics, University of Michigan, Ann Arbor, MI, USA
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Functional conservation of Gsdma cluster genes specifically duplicated in the mouse genome. G3-GENES GENOMES GENETICS 2013; 3:1843-50. [PMID: 23979942 PMCID: PMC3789809 DOI: 10.1534/g3.113.007393] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Mouse Gasdermin A3 (Gsdma3) is the causative gene for dominant skin mutations exhibiting alopecia. Mouse has two other Gsdma3-related genes, Gsdma and Gsdma2, whereas human and rat have only one related gene. To date, no skin mutation has been reported for human GSDMA and rat Gsdma as well as mouse Gsdma and Gsdma2. Therefore, it is possible that only Gsdma3 has gain-of-function type mutations to cause dominant skin phenotype. To elucidate functional divergence among the Gsdma-related genes in mice, and to infer the function of the human and rat orthologs, we examined in vivo function of mouse Gsdma by generating Gsdma knockout mice and transgenic mice that overexpress wild-type Gsdma or Gsdma harboring a point mutation (Alanine339Threonine). The Gsdma knockout mice shows no visible phenotype, indicating that Gsdma is not essential for differentiation of epidermal cells and maintenance of the hair cycle, and that Gsdma is expressed specifically both in the inner root sheath of hair follicles and in suprabasal cell layers, whereas Gsdma3 is expressed only in suprabasal layers. By contrast, both types of the transgenic mice exhibited epidermal hyperplasia resembling the Gsdma3 mutations, although the phenotype depended on the genetic background. These results indicate that the mouse Gsdma and Gsdma3 genes share common function to regulate epithelial maintenance and/or homeostasis, and suggest that the function of human GSDMA and rat Gsdma, which are orthologs of mouse Gsdma, is conserved as well.
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Zhang AH, Wang XQ, Han WB, Sun Y, Guo Y, Wu Q, Ge HM, Song YC, Ng SW, Xu Q, Tan RX. Discovery of a new class of immunosuppressants from Trichothecium roseum co-inspired by cross-kingdom similarity in innate immunity and pharmacophore motif. Chem Asian J 2013; 8:3101-7. [PMID: 24108442 DOI: 10.1002/asia.201300734] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Revised: 07/19/2013] [Indexed: 11/09/2022]
Abstract
The limited selection of immunosuppressants in the clinic hampers the efficient management of immune disorders such as rejections after organ transplantations. However, the search for new immunosuppressive compounds remains random and creates inevitably financial and laborious wastes. Herein, we present an immunity-inspired discovery strategy that rationally allows an efficient identification of immunosuppressive compounds from the endophyte culture, as exemplified by the new peptide trichomide A. This compound exerts its immunosuppressive action more selectively than cyclosporin A. It was found that trichomide A decreases the expression of Bcl-2, increases the expression of Bax, and has a small or negligible effect on the expressions of p-Akt, CD25, and CD69. Our study strengthens the idea that the cross-kingdom similarity in immunity among living things could provide a shorter route towards the identification of natural products valuable for the development of new immunosuppressants.
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Affiliation(s)
- Ai Hua Zhang
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, 22 Hankou Road, Nanjing, 210093 (P. R. China), Fax: (+86) 25-8330 2728
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Sengupta A, Lichti UF, Carlson BA, Cataisson C, Ryscavage AO, Mikulec C, Conrad M, Fischer SM, Hatfield DL, Yuspa SH. Targeted disruption of glutathione peroxidase 4 in mouse skin epithelial cells impairs postnatal hair follicle morphogenesis that is partially rescued through inhibition of COX-2. J Invest Dermatol 2013; 133:1731-41. [PMID: 23364477 PMCID: PMC3652900 DOI: 10.1038/jid.2013.52] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Selenoproteins are essential molecules for the mammalian antioxidant network. We previously demonstrated that targeted loss of all selenoproteins in mouse epidermis disrupted skin and hair development and caused premature death. In the current study we targeted specific selenoproteins for epidermal deletion to determine whether similar phenotypes developed. Keratinocyte-specific knockout mice lacking either the glutathione peroxidase 4 (GPx4) or thioredoxin reductase 1 (TR1) gene were generated by cre-lox technology using K14-cre. TR1 knockout mice had a normal phenotype in resting skin while GPx4 loss in epidermis caused epidermal hyperplasia, dermal inflammatory infiltrate, dysmorphic hair follicles and alopecia in perinatal mice. Unlike epidermal ablation of all selenoproteins, mice ablated for GPx4 recovered after 5 weeks and had a normal lifespan. GPx1 and TR1 were upregulated in the skin and keratinocytes of GPx4 knockout mice. GPx4 deletion reduces keratinocyte adhesion in culture and increases lipid peroxidation and COX-2 levels in cultured keratinocytes and whole skin. Feeding a COX-2 inhibitor to nursing mothers partially prevents development of the abnormal skin phenotype in knockout pups. These data link the activity of cutaneous GPx4 to the regulation of COX-2 and hair follicle morphogenesis and provide insight into the function of individual selenoprotein activity in maintaining cutaneous homeostasis.
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Affiliation(s)
- Aniruddha Sengupta
- Molecular Biology of Selenium Section, Laboratory of Cancer Prevention, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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