1
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Shidoji Y. Induction of Hepatoma Cell Pyroptosis by Endogenous Lipid Geranylgeranoic Acid-A Comparison with Palmitic Acid and Retinoic Acid. Cells 2024; 13:809. [PMID: 38786033 PMCID: PMC11119665 DOI: 10.3390/cells13100809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/05/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024] Open
Abstract
Research on retinoid-based cancer prevention, spurred by the effects of vitamin A deficiency on gastric cancer and subsequent clinical studies on digestive tract cancer, unveils novel avenues for chemoprevention. Acyclic retinoids like 4,5-didehydrogeranylgeranoic acid (4,5-didehydroGGA) have emerged as potent agents against hepatocellular carcinoma (HCC), distinct from natural retinoids such as all-trans retinoic acid (ATRA). Mechanistic studies reveal GGA's unique induction of pyroptosis, a rapid cell death pathway, in HCC cells. GGA triggers mitochondrial superoxide hyperproduction and ER stress responses through Toll-like receptor 4 (TLR4) signaling and modulates autophagy, ultimately activating pyroptotic cell death in HCC cells. Unlike ATRA-induced apoptosis, GGA and palmitic acid (PA) induce pyroptosis, underscoring their distinct mechanisms. While all three fatty acids evoke mitochondrial dysfunction and ER stress responses, GGA and PA inhibit autophagy, leading to incomplete autophagic responses and pyroptosis, whereas ATRA promotes autophagic flux. In vivo experiments demonstrate GGA's potential as an anti-oncometabolite, inducing cell death selectively in tumor cells and thus suppressing liver cancer development. This review provides a comprehensive overview of the molecular mechanisms underlying GGA's anti-HCC effects and underscores its promising role in cancer prevention, highlighting its importance in HCC prevention.
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Affiliation(s)
- Yoshihiro Shidoji
- Graduate School of Human Health Science, University of Nagasaki, Nagayo, Nagasaki 851-2195, Japan
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2
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Sim J, Park J, Moon JS, Lim J. Dysregulation of inflammasome activation in glioma. Cell Commun Signal 2023; 21:239. [PMID: 37723542 PMCID: PMC10506313 DOI: 10.1186/s12964-023-01255-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 08/01/2023] [Indexed: 09/20/2023] Open
Abstract
Gliomas are the most common brain tumors characterized by complicated heterogeneity. The genetic, molecular, and histological pathology of gliomas is characterized by high neuro-inflammation. The inflammatory microenvironment in the central nervous system (CNS) has been closely linked with inflammasomes that control the inflammatory response and coordinate innate host defenses. Dysregulation of the inflammasome causes an abnormal inflammatory response, leading to carcinogenesis in glioma. Because of the clinical importance of the various physiological properties of the inflammasome in glioma, the inflammasome has been suggested as a promising treatment target for glioma management. Here, we summarize the current knowledge on the contribution of the inflammasomes in glioma and therapeutic insights. Video Abstract.
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Affiliation(s)
- JeongMin Sim
- Department of Biomedical Science, College of Life Science, CHA University, Pocheon, 11160, Republic of Korea
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University College of Medicine, 59 Yatap-Ro, Bundang-Gu, Seongnam, 13496, Republic of Korea
| | - JeongMan Park
- Department of Biomedical Science, College of Life Science, CHA University, Pocheon, 11160, Republic of Korea
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University College of Medicine, 59 Yatap-Ro, Bundang-Gu, Seongnam, 13496, Republic of Korea
| | - Jong-Seok Moon
- Department of Integrated Biomedical Science, Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, 31151, Republic of Korea.
| | - Jaejoon Lim
- Department of Biomedical Science, College of Life Science, CHA University, Pocheon, 11160, Republic of Korea.
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University College of Medicine, 59 Yatap-Ro, Bundang-Gu, Seongnam, 13496, Republic of Korea.
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3
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Sparks NRL, Walker LM, Sera SR, Madrid JV, Hanna M, Dominguez EC, zur Nieden NI. Sidestream Smoke Extracts from Harm-Reduction and Conventional Camel Cigarettes Inhibit Osteogenic Differentiation via Oxidative Stress and Differential Activation of intrinsic Apoptotic Pathways. Antioxidants (Basel) 2022; 11:2474. [PMID: 36552682 PMCID: PMC9774253 DOI: 10.3390/antiox11122474] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Epidemiological studies suggest cigarette smoking as a probable environmental factor for a variety of congenital anomalies, including low bone mass, increased fracture risk and poor skeletal health. Human and animal in vitro models have confirmed hypomineralization of differentiating cell lines with sidestream smoke being more harmful to developing cells than mainstream smoke. Furthermore, first reports are emerging to suggest a differential impact of conventional versus harm-reduction tobacco products on bone tissue as it develops in the embryo or in vitro. To gather first insight into the molecular mechanism of such differences, we assessed the effect of sidestream smoke solutions from Camel (conventional) and Camel Blue (harm-reduction) cigarettes using a human embryonic stem cell osteogenic differentiation model. Sidestream smoke from the conventional Camel cigarettes concentration-dependently inhibited in vitro calcification triggered by high levels of mitochondrially generated oxidative stress, loss of mitochondrial membrane potential, and reduced ATP production. Camel sidestream smoke also induced DNA damage and caspase 9-dependent apoptosis. Camel Blue-exposed cells, in contrast, invoked only intermediate levels of reactive oxygen species insufficient to activate caspase 3/7. Despite the absence of apoptotic gene activation, damage to the mitochondrial phenotype was still noted concomitant with activation of an anti-inflammatory gene signature and inhibited mineralization. Collectively, the presented findings in differentiating pluripotent stem cells imply that embryos may exhibit low bone mineral density if exposed to environmental smoke during development.
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Affiliation(s)
- Nicole R. L. Sparks
- Department of Molecular, Cell & Systems Biology and Stem Cell Center, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, CA 92521, USA
- Environmental Toxicology Graduate Program, University of California Riverside, Riverside, CA 92521, USA
| | - Lauren M. Walker
- Department of Molecular, Cell & Systems Biology and Stem Cell Center, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, CA 92521, USA
- Environmental Toxicology Graduate Program, University of California Riverside, Riverside, CA 92521, USA
| | - Steven R. Sera
- Department of Molecular, Cell & Systems Biology and Stem Cell Center, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, CA 92521, USA
- Cell, Molecular and Developmental Biology Graduate Program, University of California Riverside, Riverside, CA 92521, USA
| | - Joseph V. Madrid
- Department of Molecular, Cell & Systems Biology and Stem Cell Center, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, CA 92521, USA
| | - Michael Hanna
- Department of Molecular, Cell & Systems Biology and Stem Cell Center, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, CA 92521, USA
| | - Edward C. Dominguez
- Environmental Toxicology Graduate Program, University of California Riverside, Riverside, CA 92521, USA
| | - Nicole I. zur Nieden
- Department of Molecular, Cell & Systems Biology and Stem Cell Center, College of Natural and Agricultural Sciences, University of California Riverside, Riverside, CA 92521, USA
- Environmental Toxicology Graduate Program, University of California Riverside, Riverside, CA 92521, USA
- Cell, Molecular and Developmental Biology Graduate Program, University of California Riverside, Riverside, CA 92521, USA
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4
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Molins B, Mesquida M, Adan A. Bioengineering approaches for modelling retinal pathologies of the outer blood-retinal barrier. Prog Retin Eye Res 2022:101097. [PMID: 35840488 DOI: 10.1016/j.preteyeres.2022.101097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 05/31/2022] [Accepted: 06/29/2022] [Indexed: 11/18/2022]
Abstract
Alterations of the junctional complex of the outer blood-retinal barrier (oBRB), which is integrated by the close interaction of the retinal pigment epithelium, the Bruch's membrane, and the choriocapillaris, contribute to the loss of neuronal signalling and subsequent vision impairment in several retinal inflammatory disorders such as age-related macular degeneration and diabetic retinopathy. Reductionist approaches into the mechanisms that underlie such diseases have been hindered by the absence of adequate in vitro models using human cells to provide the 3D dynamic architecture that enables expression of the in vivo phenotype of the oBRB. Conventional in vitro cell models are based on 2D monolayer cellular cultures, unable to properly recapitulate the complexity of living systems. The main drawbacks of conventional oBRB models also emerge from the cell sourcing, the lack of an appropriate Bruch's membrane analogue, and the lack of choroidal microvasculature with flow. In the last years, the advent of organ-on-a-chip, bioengineering, and stem cell technologies is providing more advanced 3D models with flow, multicellularity, and external control over microenvironmental properties. By incorporating additional biological complexity, organ-on-a-chip devices can mirror physiologically relevant properties of the native tissue while offering additional set ups to model and study disease. In this review we first examine the current understanding of oBRB biology as a functional unit, highlighting the coordinated contribution of the different components to barrier function in health and disease. Then we describe recent advances in the use of pluripotent stem cells-derived retinal cells, Bruch's membrane analogues, and co-culture techniques to recapitulate the oBRB. We finally discuss current advances and challenges of oBRB-on-a-chip technologies for disease modelling.
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Affiliation(s)
- Blanca Molins
- Group of Ocular Inflammation: Clinical and Experimental Studies, Institut d'Investigacions Biomèdiques Agustí Pi I Sunyer (IDIBAPS), C/ Sabino de Arana 1, 08028, Barcelona, Spain.
| | - Marina Mesquida
- Group of Ocular Inflammation: Clinical and Experimental Studies, Institut d'Investigacions Biomèdiques Agustí Pi I Sunyer (IDIBAPS), C/ Sabino de Arana 1, 08028, Barcelona, Spain; Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | - Alfredo Adan
- Group of Ocular Inflammation: Clinical and Experimental Studies, Institut d'Investigacions Biomèdiques Agustí Pi I Sunyer (IDIBAPS), C/ Sabino de Arana 1, 08028, Barcelona, Spain; Instituto Clínic de Oftalmología, Hospital Clínic Barcelona, C/ Sabino de Arana 1, 08028, Barcelona, Spain
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5
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Chukai Y, Ito G, Konno M, Sakata Y, Ozaki T. Mitochondrial calpain-5 truncates caspase-4 during endoplasmic reticulum stress. Biochem Biophys Res Commun 2022; 608:156-162. [DOI: 10.1016/j.bbrc.2022.03.156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 02/06/2023]
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6
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Smith AP, Creagh EM. Caspase-4 and -5 Biology in the Pathogenesis of Inflammatory Bowel Disease. Front Pharmacol 2022; 13:919567. [PMID: 35712726 PMCID: PMC9194562 DOI: 10.3389/fphar.2022.919567] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/11/2022] [Indexed: 12/14/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic relapsing inflammatory disease of the gastrointestinal tract, associated with high levels of inflammatory cytokine production. Human caspases-4 and -5, and their murine ortholog caspase-11, are essential components of the innate immune pathway, capable of sensing and responding to intracellular lipopolysaccharide (LPS), a component of Gram-negative bacteria. Following their activation by LPS, these caspases initiate potent inflammation by causing pyroptosis, a lytic form of cell death. While this pathway is essential for host defence against bacterial infection, it is also negatively associated with inflammatory pathologies. Caspases-4/-5/-11 display increased intestinal expression during IBD and have been implicated in chronic IBD inflammation. This review discusses the current literature in this area, identifying links between inflammatory caspase activity and IBD in both human and murine models. Differences in the expression and functions of caspases-4, -5 and -11 are discussed, in addition to mechanisms of their activation, function and regulation, and how these mechanisms may contribute to the pathogenesis of IBD.
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Affiliation(s)
| | - Emma M. Creagh
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
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7
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Dhani S, Zhao Y, Zhivotovsky B. A long way to go: caspase inhibitors in clinical use. Cell Death Dis 2021; 12:949. [PMID: 34654807 PMCID: PMC8519909 DOI: 10.1038/s41419-021-04240-3] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/15/2021] [Accepted: 09/28/2021] [Indexed: 12/19/2022]
Abstract
Caspases are an evolutionary conserved family of cysteine-dependent proteases that are involved in many vital cellular processes including apoptosis, proliferation, differentiation and inflammatory response. Dysregulation of caspase-mediated apoptosis and inflammation has been linked to the pathogenesis of various diseases such as inflammatory diseases, neurological disorders, metabolic diseases, and cancer. Multiple caspase inhibitors have been designed and synthesized as a potential therapeutic tool for the treatment of cell death-related pathologies. However, only a few have progressed to clinical trials because of the consistent challenges faced amongst the different types of caspase inhibitors used for the treatment of the various pathologies, namely an inadequate efficacy, poor target specificity, or adverse side effects. Importantly, a large proportion of this failure lies in the lack of understanding various caspase functions. To overcome the current challenges, further studies on understanding caspase function in a disease model is a fundamental requirement to effectively develop their inhibitors as a treatment for the different pathologies. Therefore, the present review focuses on the descriptive properties and characteristics of caspase inhibitors known to date, and their therapeutic application in animal and clinical studies. In addition, a brief discussion on the achievements, and current challenges faced, are presented in support to providing more perspectives for further development of successful therapeutic caspase inhibitors for various diseases.
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Affiliation(s)
- Shanel Dhani
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 17177, Stockholm, Sweden
| | - Yun Zhao
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 17177, Stockholm, Sweden
| | - Boris Zhivotovsky
- Institute of Environmental Medicine, Karolinska Institutet, Box 210, 17177, Stockholm, Sweden.
- Faculty of Medicine, MV Lomonosov Moscow State University, 119991, Moscow, Russia.
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8
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Mollinedo F, Gajate C. Direct Endoplasmic Reticulum Targeting by the Selective Alkylphospholipid Analog and Antitumor Ether Lipid Edelfosine as a Therapeutic Approach in Pancreatic Cancer. Cancers (Basel) 2021; 13:4173. [PMID: 34439330 PMCID: PMC8394177 DOI: 10.3390/cancers13164173] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/11/2021] [Accepted: 08/15/2021] [Indexed: 02/06/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC), the most common malignancy of the pancreas, shows a dismal and grim overall prognosis and survival rate, which have remained virtually unchanged for over half a century. PDAC is the most lethal of all cancers, with the highest mortality-to-incidence ratio. PDAC responds poorly to current therapies and remains an incurable malignancy. Therefore, novel therapeutic targets and drugs are urgently needed for pancreatic cancer treatment. Selective induction of apoptosis in cancer cells is an appealing approach in cancer therapy. Apoptotic cell death is highly regulated by different signaling routes that involve a variety of subcellular organelles. Endoplasmic reticulum (ER) stress acts as a double-edged sword at the interface of cell survival and death. Pancreatic cells exhibit high hormone and enzyme secretory functions, and thereby show a highly developed ER. Thus, pancreatic cancer cells display a prominent ER. Solid tumors have to cope with adverse situations in which hypoxia, lack of certain nutrients, and the action of certain antitumor agents lead to a complex interplay and crosstalk between ER stress and autophagy-the latter acting as an adaptive survival response. ER stress also mediates cell death induced by a number of anticancer drugs and experimental conditions, highlighting the pivotal role of ER stress in modulating cell fate. The alkylphospholipid analog prototype edelfosine is selectively taken up by tumor cells, accumulates in the ER of a number of human solid tumor cells-including pancreatic cancer cells-and promotes apoptosis through a persistent ER-stress-mediated mechanism both in vitro and in vivo. Here, we discuss and propose that direct ER targeting may be a promising approach in the therapy of pancreatic cancer, opening up a new avenue for the treatment of this currently incurable and deadly cancer. Furthermore, because autophagy acts as a cytoprotective response to ER stress, potentiation of the triggering of a persistent ER response by combination therapy, together with the use of autophagy blockers, could improve the current gloomy expectations for finding a cure for this type of cancer.
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Affiliation(s)
- Faustino Mollinedo
- Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas (CSIC), Laboratory of Cell Death and Cancer Therapy, Department of Molecular Biomedicine, C/Ramiro de Maeztu 9, E-28040 Madrid, Spain;
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9
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Takayama S, Kawanishi M, Yamauchi K, Tokumitsu D, Kojima H, Masutani T, Iddamalgoda A, Mitsunaga T, Tanaka H. Ellagitannins from Rosa roxburghii suppress poly(I:C)-induced IL-8 production in human keratinocytes. J Nat Med 2021; 75:623-632. [PMID: 33830449 DOI: 10.1007/s11418-021-01509-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 03/27/2021] [Indexed: 12/18/2022]
Abstract
The anti-inflammatory effects of a 50% aqueous extract of Rosa roxburghii fruit (RRFE) and two ellagitannins (strictinin and casuarictin) isolated from the RRFE were evaluated in a cell model of skin inflammation induced by self-RNA released from epidermal cells damaged by UV ray (UVR) irradiation. The RRFE inhibited interleukin-8 (IL-8) mRNA expression in normal human epidermal keratinocytes (NHEKs) stimulated with polyinosinic:polycytidylic acid (poly(I:C)), a ligand of toll-like receptor-3 (TLR-3). The plant-derived anti-inflammatory agents, dipotassium glycyrrhizinate (GK2) and allantoin, had no influence on the IL-8 expression. The purified compounds, strictinin and casuarictin, inhibited the IL-8 mRNA expression and IL-8 release induced in NHEKs by poly(I:C). These ellagitannins were thus found to be responsible for the biological activity exhibited by the RRFE. This study demonstrates that RRFE and isolated RRFE compounds show promise as ingredients for products formulated to improve skin disorders induced by UVR irradiation.
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Affiliation(s)
- Satoru Takayama
- Medical Science Division, United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, 1-1 Yanagido, Gifu City, Gifu, 501-1194, Japan. .,Research and Development Department, Ichimaru Pharcos Co., Ltd, 318-1 Asagi, Motosu City, Gifu, 501-0475, Japan.
| | - Miho Kawanishi
- Department of Applied Life Science, Faculty of Applied Biological Science, Gifu University, 1-1 Yanagido, Gifu City, Gifu, 501-1194, Japan
| | - Kosei Yamauchi
- Department of Applied Life Science, Faculty of Applied Biological Science, Gifu University, 1-1 Yanagido, Gifu City, Gifu, 501-1194, Japan
| | - Daiki Tokumitsu
- Laboratory of Pharmacology, Department of Bioactive Molecules, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu City, Gifu, 501-1196, Japan
| | - Hiroyuki Kojima
- Research and Development Department, Ichimaru Pharcos Co., Ltd, 318-1 Asagi, Motosu City, Gifu, 501-0475, Japan
| | - Teruaki Masutani
- Research and Development Department, Ichimaru Pharcos Co., Ltd, 318-1 Asagi, Motosu City, Gifu, 501-0475, Japan
| | - Arunasiri Iddamalgoda
- Research and Development Department, Ichimaru Pharcos Co., Ltd, 318-1 Asagi, Motosu City, Gifu, 501-0475, Japan
| | - Tohru Mitsunaga
- Department of Applied Life Science, Faculty of Applied Biological Science, Gifu University, 1-1 Yanagido, Gifu City, Gifu, 501-1194, Japan
| | - Hiroyuki Tanaka
- Medical Science Division, United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, 1-1 Yanagido, Gifu City, Gifu, 501-1194, Japan. .,Laboratory of Pharmacology, Department of Bioactive Molecules, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu City, Gifu, 501-1196, Japan.
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10
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Pike AF, Varanita T, Herrebout MAC, Plug BC, Kole J, Musters RJP, Teunissen CE, Hoozemans JJM, Bubacco L, Veerhuis R. α-Synuclein evokes NLRP3 inflammasome-mediated IL-1β secretion from primary human microglia. Glia 2021; 69:1413-1428. [PMID: 33506583 PMCID: PMC8247862 DOI: 10.1002/glia.23970] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 01/13/2021] [Accepted: 01/15/2021] [Indexed: 01/03/2023]
Abstract
Synucleinopathies such as Parkinson's disease (PD) are hallmarked by α‐synuclein (α‐syn) pathology and neuroinflammation. This neuroinflammation involves activated microglia with increased secretion of interleukin‐1β (IL‐1β). The main driver of IL‐1β secretion from microglia is the NLRP3 inflammasome. A critical link between microglial NLRP3 inflammasome activation and the progression of both α‐syn pathology and dopaminergic neurodegeneration has been identified in various PD models in vivo. α‐Syn is known to activate the microglial NLRP3 inflammasome in murine models, but its relationship to this inflammasome in human microglia has not been established. In this study, IL‐1β secretion from primary mouse microglia induced by α‐syn fibrils was dependent on NLRP3 inflammasome assembly and caspase‐1 activity, as previously reported. We show that exposure of primary human microglia to α‐syn fibrils also resulted in significant IL‐1β secretion that was dependent on inflammasome assembly and involved the recruitment of caspase‐1 protein to inflammasome scaffolds as visualized with superresolution microscopy. While canonical IL‐1β secretion was clearly dependent on caspase‐1 enzymatic activity, this activity was less clearly involved for α‐syn‐induced IL‐1β secretion from human microglia. This work presents similarities between primary human and mouse microglia in the mechanisms of activation of the NLRP3 inflammasome by α‐syn, but also highlights evidence to suggest that there may be a difference in the requirement for caspase‐1 activity in IL‐1β output. The data represent a novel characterization of PD‐related NLRP3 inflammasome activation in primary human microglia and further implicate this mechanism in the pathology underlying PD.
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Affiliation(s)
- Adrianne F Pike
- Amsterdam UMC, Vrije Universiteit Amsterdam, Neurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | | | - Maaike A C Herrebout
- Amsterdam UMC, Vrije Universiteit Amsterdam, Neurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - Bonnie C Plug
- Amsterdam UMC, Vrije Universiteit Amsterdam, Neurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - Jeroen Kole
- Amsterdam UMC, Vrije Universiteit Amsterdam, Laboratory for Physiology, Institute for Cardiovascular Research, Amsterdam, the Netherlands
| | - René J P Musters
- Amsterdam UMC, Vrije Universiteit Amsterdam, Laboratory for Physiology, Institute for Cardiovascular Research, Amsterdam, the Netherlands
| | - Charlotte E Teunissen
- Amsterdam UMC, Vrije Universiteit Amsterdam, Neurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - Jeroen J M Hoozemans
- Amsterdam UMC, Vrije Universiteit Amsterdam, Neuropathology Laboratory, Department of Pathology, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - Luigi Bubacco
- Department of Biology, University of Padua, Padua, Italy
| | - Robert Veerhuis
- Amsterdam UMC, Vrije Universiteit Amsterdam, Neurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Amsterdam, the Netherlands.,Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Psychiatry, Amsterdam Neuroscience, Amsterdam, the Netherlands
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11
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Yan J, Xie Y, Si J, Gan L, Li H, Sun C, Di C, Zhang J, Huang G, Zhang X, Zhang H. Crosstalk of the Caspase Family and Mammalian Target of Rapamycin Signaling. Int J Mol Sci 2021; 22:E817. [PMID: 33467535 PMCID: PMC7830632 DOI: 10.3390/ijms22020817] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/20/2022] Open
Abstract
Cell can integrate the caspase family and mammalian target of rapamycin (mTOR) signaling in response to cellular stress triggered by environment. It is necessary here to elucidate the direct response and interaction mechanism between the two signaling pathways in regulating cell survival and determining cell fate under cellular stress. Members of the caspase family are crucial regulators of inflammation, endoplasmic reticulum stress response and apoptosis. mTOR signaling is known to mediate cell growth, nutrition and metabolism. For instance, over-nutrition can cause the hyperactivation of mTOR signaling, which is associated with diabetes. Nutrition deprivation can inhibit mTOR signaling via SH3 domain-binding protein 4. It is striking that Ras GTPase-activating protein 1 is found to mediate cell survival in a caspase-dependent manner against increasing cellular stress, which describes a new model of apoptosis. The components of mTOR signaling-raptor can be cleaved by caspases to control cell growth. In addition, mTOR is identified to coordinate the defense process of the immune system by suppressing the vitality of caspase-1 or regulating other interferon regulatory factors. The present review discusses the roles of the caspase family or mTOR pathway against cellular stress and generalizes their interplay mechanism in cell fate determination.
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Affiliation(s)
- Junfang Yan
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; (J.Y.); (J.S.); (L.G.); (H.L.); (C.S.); (C.D.); (J.Z.); (G.H.); (X.Z.)
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Yi Xie
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; (J.Y.); (J.S.); (L.G.); (H.L.); (C.S.); (C.D.); (J.Z.); (G.H.); (X.Z.)
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Jing Si
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; (J.Y.); (J.S.); (L.G.); (H.L.); (C.S.); (C.D.); (J.Z.); (G.H.); (X.Z.)
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Lu Gan
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; (J.Y.); (J.S.); (L.G.); (H.L.); (C.S.); (C.D.); (J.Z.); (G.H.); (X.Z.)
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Hongyan Li
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; (J.Y.); (J.S.); (L.G.); (H.L.); (C.S.); (C.D.); (J.Z.); (G.H.); (X.Z.)
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Chao Sun
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; (J.Y.); (J.S.); (L.G.); (H.L.); (C.S.); (C.D.); (J.Z.); (G.H.); (X.Z.)
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Cuixia Di
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; (J.Y.); (J.S.); (L.G.); (H.L.); (C.S.); (C.D.); (J.Z.); (G.H.); (X.Z.)
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
| | - Jinhua Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; (J.Y.); (J.S.); (L.G.); (H.L.); (C.S.); (C.D.); (J.Z.); (G.H.); (X.Z.)
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Guomin Huang
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; (J.Y.); (J.S.); (L.G.); (H.L.); (C.S.); (C.D.); (J.Z.); (G.H.); (X.Z.)
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Xuetian Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; (J.Y.); (J.S.); (L.G.); (H.L.); (C.S.); (C.D.); (J.Z.); (G.H.); (X.Z.)
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Hong Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; (J.Y.); (J.S.); (L.G.); (H.L.); (C.S.); (C.D.); (J.Z.); (G.H.); (X.Z.)
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516029, China
- Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China
- Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China
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12
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Zhong Q, Roumeliotis TI, Kozik Z, Cepeda-Molero M, Fernández LÁ, Shenoy AR, Bakal C, Frankel G, Choudhary JS. Clustering of Tir during enteropathogenic E. coli infection triggers calcium influx-dependent pyroptosis in intestinal epithelial cells. PLoS Biol 2020; 18:e3000986. [PMID: 33378358 PMCID: PMC7773185 DOI: 10.1371/journal.pbio.3000986] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 11/24/2020] [Indexed: 11/19/2022] Open
Abstract
Clustering of the enteropathogenic Escherichia coli (EPEC) type III secretion system (T3SS) effector translocated intimin receptor (Tir) by intimin leads to actin polymerisation and pyroptotic cell death in macrophages. The effect of Tir clustering on the viability of EPEC-infected intestinal epithelial cells (IECs) is unknown. We show that EPEC induces pyroptosis in IECs in a Tir-dependent but actin polymerisation-independent manner, which was enhanced by priming with interferon gamma (IFNγ). Mechanistically, Tir clustering triggers rapid Ca2+ influx, which induces lipopolysaccharide (LPS) internalisation, followed by activation of caspase-4 and pyroptosis. Knockdown of caspase-4 or gasdermin D (GSDMD), translocation of NleF, which blocks caspase-4 or chelation of extracellular Ca2+, inhibited EPEC-induced cell death. IEC lines with low endogenous abundance of GSDMD were resistant to Tir-induced cell death. Conversely, ATP-induced extracellular Ca2+ influx enhanced cell death, which confirmed the key regulatory role of Ca2+ in EPEC-induced pyroptosis. We reveal a novel mechanism through which infection with an extracellular pathogen leads to pyroptosis in IECs.
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Affiliation(s)
- Qiyun Zhong
- Centre for Molecular Bacteriology and Infection, Department of Life Sciences, Imperial College, London, United Kingdom
| | - Theodoros I. Roumeliotis
- Functional Proteomics Group, Chester Beatty Laboratories, The Institute of Cancer Research, London, United Kingdom
| | - Zuza Kozik
- Functional Proteomics Group, Chester Beatty Laboratories, The Institute of Cancer Research, London, United Kingdom
| | - Massiel Cepeda-Molero
- Centre for Molecular Bacteriology and Infection, Department of Life Sciences, Imperial College, London, United Kingdom
| | - Luis Ángel Fernández
- Department of Microbial Biotechnology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Campus UAM-Cantoblanco, Madrid, Spain
| | - Avinash R. Shenoy
- Centre for Molecular Bacteriology & Infection, Department of Infectious Disease, Imperial College, London, United Kingdom
| | - Chris Bakal
- Dynamical Cell Systems, Chester Beatty Laboratories, The Institute of Cancer Research, London, United Kingdom
| | - Gad Frankel
- Centre for Molecular Bacteriology and Infection, Department of Life Sciences, Imperial College, London, United Kingdom
| | - Jyoti S. Choudhary
- Functional Proteomics Group, Chester Beatty Laboratories, The Institute of Cancer Research, London, United Kingdom
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13
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Li J, Li X, Yuan Y, Wang Q, Xie L, Dai Y, Wang W, Li L, Lu X, Fan Q, Huang W. Efficient Polysulfide-Based Nanotheranostics for Triple-Negative Breast Cancer: Ratiometric Photoacoustics Monitored Tumor Microenvironment-Initiated H 2 S Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2002939. [PMID: 32875678 DOI: 10.1002/smll.202002939] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/15/2020] [Indexed: 06/11/2023]
Abstract
The incidence of triple-negative breast cancer (TNBC) is difficult to predict, and TNBC has a high mortality rate among women worldwide. In this study, a theranostics approach is developed for TNBC with ratiometric photoacoustic monitored thiol-initiated hydrogen sulfide (H2 S) therapy. The ratiometric photoacoustic (PA) probe (CY) with a thiol-initiated H2 S donor (PSD) to form a nanosystem (CY-PSD nanoparticles) is integrated. In this theranostics approach, H2 S generated from PSD is sensed by CY based on ratiometric PA signals, which simultaneously pinpoints the tumor region. Additionally, H2 S is cytotoxic toward TNBC cells (MDA-MB 231), showing a tumor inhibition rate of 63%. To further verify its pharmacological mechanism, proteomics analysis is performed on tumors treated with CY-PSD nanoparticles. Cells are killed by the significant mitochondrial dysfunction via supressed energy supply and apoptosis initiation. Besides, the observed inhibition of oxidative stress also generates the cytotoxicity. Significant Kyoto Encyclopedia of Genes Genomes pathways related to TNBC are found to be inhibited. This H2 S theranostics approach updates the current anticancer therapies which brings promise for women suffering malignant breast cancer.
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Affiliation(s)
- Jie Li
- Jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 211816, China
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Xiang Li
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Yan Yuan
- Jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 211816, China
| | - Qi Wang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Lisi Xie
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, Macau SAR, 999078, China
| | - Yunlu Dai
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, Macau SAR, 999078, China
| | - Wenjun Wang
- Key Lab of Optical Communication Science and Technology of Shandong Province & School of Physics Science and Information Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Lin Li
- Jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 211816, China
| | - Xiaomei Lu
- Jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 211816, China
| | - Quli Fan
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Wei Huang
- Jiangsu-Singapore Joint Research Center for Organic/Bio-Electronics & Information Displays and Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing, 211816, China
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14
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Nawasreh MM, Alzyoud EI, Al-Mazaydeh ZA, Rammaha MS, Yasin SR, Tahtamouni LH. Biological activity and apoptotic signaling pathway of C 11-functionalized cephalostatin 1 analogues. Steroids 2020; 158:108602. [PMID: 32092307 DOI: 10.1016/j.steroids.2020.108602] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 01/07/2020] [Accepted: 01/27/2020] [Indexed: 02/06/2023]
Abstract
Cephalostatin 1, a potent anti-cancer agent, is a natural bis-steroidal alkaloid that causes cell death in the subnanomolar to picomolar ranges via an atypical apoptosis pathway. Although cephalostatin 1 is a highly effective anticancer drug, its availability limits its utilization. We previously reported the synthesis of two 12'α-hydroxy derivatives of cephalostatin 1 that induce cell death by activating the ER stress apoptosis signaling pathway. For the current work, we synthesized six C11-functionalized cephalostatin 1 analogues (CAs) to evaluate their biological activity. For the cytotoxic compounds, the induced apoptotic pathway was investigated. The C11-functionalized cephalostatin 1 analogues 5 and 6 (CA5 and CA6) were found to exhibit cytotoxic activity against K-562 leukemia cells, MCF-7 breast cancer cells and DU-145 prostate cancer cells, while the remaining four analogues did not show anti-tumor activities against any of the cell lines. Our results indicated that CA5 and CA6 induced cell death via the atypical ER-dependent apoptosis pathway; they increased the expression of Smac/DIABLO, an inhibitor of inhibitors of apoptosis (IAPs), which in turn facilitated the activation of different caspases including the ER-caspase 4 without cytochrome c release from mitochondria. CA5 and CA6 are promising anticancer agents due to their low GI50, the remarkable apoptosis pathway they induce which can overcome chemoresistance, and their very low toxicity to normal cells making them cephalostatin 1 utilizable alternatives.
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Affiliation(s)
- Mansour M Nawasreh
- Applied Sciences Department, Faculty of Engineering Technology, Al-Balqa Applied University, Amman 11134, Jordan
| | - Elham I Alzyoud
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13115, Jordan; Department of Genetics, University of Szeged, H-6720 Szeged, Hungary
| | - Zainab A Al-Mazaydeh
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13115, Jordan
| | - Majdoleen S Rammaha
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13115, Jordan
| | - Salem R Yasin
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13115, Jordan
| | - Lubna H Tahtamouni
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13115, Jordan; Department of Biochemistry and Molecular Biology, College of Natural Sciences, Colorado State University, Fort Collins 80523, CO, USA.
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15
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Kaul Z, Mookherjee D, Das S, Chatterjee D, Chakrabarti S, Chakrabarti O. Loss of tumor susceptibility gene 101 (TSG101) perturbs endoplasmic reticulum structure and function. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118741. [PMID: 32422153 DOI: 10.1016/j.bbamcr.2020.118741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 05/02/2020] [Accepted: 05/08/2020] [Indexed: 12/30/2022]
Abstract
Tumor susceptibility gene 101 (TSG101), an ESCRT-I protein, is implicated in multiple cellular processes and its functional depletion can lead to blocked lysosomal degradation, cell cycle arrest, demyelination and neurodegeneration. Here, we show that loss of TSG101 results in endoplasmic reticulum (ER) stress and this causes ER membrane remodelling (EMR). This correlates with an expansion of ER, increased vacuolation, altered relative distribution of the rough and smooth ER and disruption of three-way junctions. Blocked lysosomal degradation due to TSG101 depletion leads to ER stress and Ca2+ leakage from ER stores, causing destabilization of actin cytoskeleton. Inhibiting Ca2+ release from the ER by blocking ryanodine receptors (RYRs) with Dantrolene partially rescues the ER stress phenotypes. Hence, in this study we have identified the involvement of TSG101 in modulating ER stress mediated remodelling by engaging the actin cytoskeleton. This is significant because functional depletion of TSG101 effectuates ER-stress, perturbs the structure, mobility and function of the ER, all aspects closely associated with neurodegenerative diseases. SUMMARY STATEMENT: We show that tumor susceptibility gene (TSG) 101 regulates endoplasmic reticulum (ER) stress and its membrane remodelling. Loss of TSG101 perturbs structure, mobility and function of the ER as a consequence of actin destabilization.
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Affiliation(s)
- Zenia Kaul
- Biophysics & Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India; Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA..
| | - Debdatto Mookherjee
- Biophysics & Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
| | - Subhrangshu Das
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, CN 6, Sector V, Salt Lake, Kolkata 700091, India
| | - Debmita Chatterjee
- Biophysics & Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
| | - Saikat Chakrabarti
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, CN 6, Sector V, Salt Lake, Kolkata 700091, India
| | - Oishee Chakrabarti
- Biophysics & Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India; Homi Bhabha National Institute, India.
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16
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da Silva DC, Valentão P, Andrade PB, Pereira DM. Endoplasmic reticulum stress signaling in cancer and neurodegenerative disorders: Tools and strategies to understand its complexity. Pharmacol Res 2020; 155:104702. [PMID: 32068119 DOI: 10.1016/j.phrs.2020.104702] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/10/2020] [Accepted: 02/13/2020] [Indexed: 12/12/2022]
Abstract
The endoplasmic reticulum (ER) comprises a network of tubules and vesicles that constitutes the largest organelle of the eukaryotic cell. Being the location where most proteins are synthesized and folded, it is crucial for the upkeep of cellular homeostasis. Disturbed ER homeostasis triggers the activation of a conserved molecular machinery, termed the unfolded protein response (UPR), that comprises three major signaling branches, initiated by the protein kinase RNA-like endoplasmic reticulum kinase (PERK), inositol-requiring enzyme 1 (IRE1) and the activating transcription factor 6 (ATF6). Given the impact of this intricate signaling network upon an extensive list of cellular processes, including protein turnover and autophagy, ER stress is involved in the onset and progression of multiple diseases, including cancer and neurodegenerative disorders. There is, for this reason, an increasing number of publications focused on characterizing and/or modulating ER stress, which have resulted in a wide array of techniques employed to study ER-related molecular events. This review aims to sum up the essentials on the current knowledge of the molecular biology of endoplasmic reticulum stress, while highlighting the available tools used in studies of this nature.
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Affiliation(s)
- Daniela Correia da Silva
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-213, Porto, Portugal
| | - Patrícia Valentão
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-213, Porto, Portugal
| | - Paula B Andrade
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-213, Porto, Portugal
| | - David M Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-213, Porto, Portugal.
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17
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Yun M, Yi YS. Regulatory roles of ginseng on inflammatory caspases, executioners of inflammasome activation. J Ginseng Res 2019; 44:373-385. [PMID: 32372859 PMCID: PMC7195600 DOI: 10.1016/j.jgr.2019.12.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/06/2019] [Accepted: 12/17/2019] [Indexed: 12/12/2022] Open
Abstract
Inflammation is an immune response that protects against pathogens and cellular stress. The hallmark of inflammatory responses is inflammasome activation in response to various stimuli. This subsequently activates downstream effectors, that is, inflammatory caspases such as caspase-1, 4, 5, 11, and 12. Extensive efforts have been made on developing effective and safe anti-inflammatory therapeutics, and ginseng has long been traditionally used as efficacious and safe herbal medicine in treating various inflammatory and inflammation-mediated diseases. Many studies have successfully shown that ginseng plays an anti-inflammatory role by inhibiting inflammasomes and inflammasome-activated inflammatory caspases. This review discusses the regulatory roles of ginseng on inflammatory caspases in inflammatory responses and also suggests new research areas on the anti-inflammatory function of ginseng, which provides a novel insight into the development of ginseng as an effective and safe anti-inflammatory herbal medicine.
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Key Words
- AIM2, Absent in melanoma 2
- ASC, Apoptosis-associated speck-like protein containing CARD
- CARD, C-terminal caspase recruit domain
- COX-2, Cyclooxygenase-2
- Caspase, Cysteine aspartate–specific protease
- DAMP, Danger-associated molecular pattern
- FIIND, Functional-to-find domain
- GSDMD, Gasdermin D
- Ginseng
- Ginsenoside
- HIN, Hematopoietic interferon-inducible nuclear protein
- IL, Interleukin
- Inflammasome
- Inflammation
- Inflammatory caspase
- LPS, Lipopolysaccharide
- LRR, Leucine-rich repeat
- NACHT, Nucleotide-binding and oligomerization domain
- NF-κB, Nuclear factor-kappa B
- NLR, Nucleotide-binding oligomerization domain-like receptor
- NO, Nitric oxide
- PAMP, Pathogen-associated molecular pattern
- PGE2, Prostaglandin E2
- PRR, Pattern-recognition receptor
- PYD, N-terminal pyrin domain
- RGE, Korean Red Ginseng
- ROS, Reactive oxygen species
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Affiliation(s)
- Miyong Yun
- Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, Republic of Korea
| | - Young-Su Yi
- Department of Life Science, Kyonggi University, Suwon, Republic of Korea
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18
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Yin P, Guo X, Yang W, Yan S, Yang S, Zhao T, Sun Q, Liu Y, Li S, Li XJ. Caspase-4 mediates cytoplasmic accumulation of TDP-43 in the primate brains. Acta Neuropathol 2019; 137:919-937. [PMID: 30810811 PMCID: PMC6531422 DOI: 10.1007/s00401-019-01979-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/20/2019] [Accepted: 02/21/2019] [Indexed: 12/12/2022]
Abstract
The cytoplasmic accumulation of the nuclear TAR DNA-binding protein 43 (TDP-43) is a pathologic hallmark in amyotrophic lateral sclerosis, frontotemporal lobar degeneration, and other neurological disorders. However, most transgenic TDP-43 rodent models show predominant nuclear distribution of TDP-43 in the brain. By expressing mutant TDP-43 (M337V) in the brains of rhesus monkeys and mice, we verified that mutant TDP-43 is distributed in the cytoplasm of the monkey brain and that the majority of mutant TDP-43 remains in the nuclei of the mouse brain. The primate-specific caspase-4, but not mouse homologue caspase-11, could remove the NLS-containing N-terminal domain and generate fragmented TDP-43 that accumulates in the cytoplasm. Moreover, increased expression of caspase-4 in the monkey brain promotes the cytoplasmic accumulation of endogenous TDP-43, and suppressing caspase-4 reduces the cytoplasmic distribution of endogenous TDP-43 in cultured human neural cells. Our findings suggest that primate-specific caspase-4-mediated cleavage of TDP-43 accounts for its cytoplasmic mislocalization in the primate brains and may serve as a potential therapeutic target.
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Affiliation(s)
- Peng Yin
- Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Xiangyu Guo
- Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
| | - Weili Yang
- Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Sen Yan
- Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China
| | - Su Yang
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Ting Zhao
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Qiang Sun
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yunbo Liu
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
| | - Shihua Li
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA.
| | - Xiao-Jiang Li
- Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Guangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China.
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA.
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19
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The effect of ELOVL6 fatty acid elongase inhibition on the expression of genes associated with the metastasis of breast cancer. Russ Chem Bull 2019. [DOI: 10.1007/s11172-018-2374-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bian ZM, Field MG, Elner SG, Elner VM. Expression and regulation of alarmin cytokine IL-1α in human retinal pigment epithelial cells. Exp Eye Res 2018; 172:10-20. [PMID: 29551335 DOI: 10.1016/j.exer.2018.03.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 03/14/2018] [Indexed: 02/08/2023]
Abstract
Human retinal pigment epithelial (hRPE) cells play important immune-regulatory roles in a variety of retinal pathologic processes, including the production of inflammatory cytokines that are essential mediators of the innate immune response within the ocular microenvironment. The pro-inflammatory "alarmin" cytokine IL-1α has been implicated in both infectious and non-infectious retinal diseases, but its regulation in the retina is poorly understood. The purpose of this study was to elucidate the expression and regulation of IL-1α within hRPE cells. To do this, IL-1α mRNA and protein in hRPE cells was assessed by RT-PCR, qPCR, ELISA, Western blot, and immunofluorescence following treatment with a variety of stimuli and inhibitors. ER stress, LPS, IL-1β, and TLR2 activation all significantly increased intracellular IL-1α protein. Increasing intracellular calcium synergized both LPS- and Pam3CSK4-induced IL-1α protein production. Accordingly, blocking calcium signaling and calpain activity strongly suppressed IL-1α protein expression. Significant but more moderate inhibition occurred following blockage of TLR4, caspase-4, or caspase-1. Neutralizing antibodies to IL-1β and TLR2 partially eliminated LPS- and TLR2 ligand Pam3CSK4-stimulated IL-1α protein production. IFN-β induced caspase-4 expression and activation, and also potentiated LPS-induced IL-1α expression, but IFN-β alone had no effect on IL-1α protein production. Interestingly, all inhibitors targeting the PI3K/Akt pathway, with the exception of Ly294002, strongly increased IL-1α protein expression. This study improves understanding of the complex mechanisms regulating IL-1α protein expression in hRPE cells by demonstrating that TLR4 and TLR2 stimulation and exposure to IL-1β, ER stress and intracellular calcium all induce hRPE cells to produce intracellular IL-1α, which is negatively regulated by the PI3K/Akt pathway. Additionally, the non-canonical inflammasome pathway was shown to be involved in LPS-induced hRPE IL-1α expression through caspase-4 signaling.
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Affiliation(s)
- Zong-Mei Bian
- Department of Ophthalmology, University of Michigan, Ann Arbor, MI, 48105, United States
| | - Matthew G Field
- Department of Ophthalmology, University of Michigan, Ann Arbor, MI, 48105, United States.
| | - Susan G Elner
- Department of Ophthalmology, University of Michigan, Ann Arbor, MI, 48105, United States
| | - Victor M Elner
- Department of Ophthalmology, University of Michigan, Ann Arbor, MI, 48105, United States
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21
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Tahtamouni LH, Nawasreh MM, Al-Mazaydeh ZA, Al-Khateeb RA, Abdellatif RN, Bawadi RM, Bamburg JR, Yasin SR. Cephalostatin 1 analogues activate apoptosis via the endoplasmic reticulum stress signaling pathway. Eur J Pharmacol 2018; 818:400-409. [PMID: 29154934 DOI: 10.1016/j.ejphar.2017.11.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 11/07/2017] [Accepted: 11/14/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Lubna H Tahtamouni
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13115, Jordan.
| | - Mansour M Nawasreh
- Applied Sciences Department, Faculty of Engineering Technology, Al-Balqa Applied University, Amman 11134, Jordan
| | - Zainab A Al-Mazaydeh
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13115, Jordan
| | - Rema A Al-Khateeb
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13115, Jordan
| | - Reem N Abdellatif
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13115, Jordan
| | - Randa M Bawadi
- Department of Physiology and Biochemistry, The University of Jordan, Amman 11942, Jordan
| | - James R Bamburg
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Salem R Yasin
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13115, Jordan
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22
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Kang SJ, Lee YJ, Kang SG, Cho S, Yoon W, Lim JH, Min SH, Lee TH, Kim BM. Caspase-4 is essential for saikosaponin a-induced apoptosis acting upstream of caspase-2 and γ-H2AX in colon cancer cells. Oncotarget 2017; 8:100433-100448. [PMID: 29245990 PMCID: PMC5725032 DOI: 10.18632/oncotarget.22247] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 09/30/2017] [Indexed: 11/25/2022] Open
Abstract
Saikosaponin a (SSa), a bioactive phytochemical from Bupleurum, triggers sequential caspase-2 and caspase-8 activation, and thereby induces caspase-mediated apoptosis in human colon carcinoma (HCC) cells. However, the upstream mechanism of caspase-2 activation remains unknown. Therefore, we investigated the signaling mechanisms underlying SSa-induced caspase activation and apoptosis in HCC cells. SSa treatment triggered marked antitumor effects, especially in HCC cells, in a cell culture model and a mouse xenograft model. SSa also induced the activation of several endoplasmic reticulum (ER) stress signals. Specifically, caspase-4, a critical regulator of ER stress-induced apoptosis, was activated significantly after SSa treatment. Mechanistically, selective inhibition of caspase-4 suppressed SSa-induced apoptosis, colony inhibition, and the activation of caspase-3, -8, and -2, but not vice versa. Consistent with the important role of caspase-2 in the DNA damage response, SSa induced DNA damage, as evidenced by a cytokinesis-block micronucleus assay, single-cell gel electrophoresis, and an increase in the levels of γ-H2AX, a DNA damage marker. Moreover, inhibition of caspase-4 activation inhibited SSa-induced histone H2AX phosphorylation. Taken together, these results suggest that caspase-4 is an upstream regulator of SSa-induced DNA damage and caspase activation in HCC cells. Given that SSa-induced apoptosis appeared to be specific to certain cell types including HCC cells, SSa may be a promising cancer therapy agent in certain types of cancer.
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Affiliation(s)
- Su Jin Kang
- The Medical Research Center for Globalization of Herbal Medicine, Daegu Haany University, Gyeongsan, Gyeongsangbuk-Do 38610, Republic of Korea.,Department of Preventive Medicine, College of Korean Medicine, Daegu Haany University, Gyeongsan, Gyeongsangbuk-Do 38610, Republic of Korea
| | - Young Joon Lee
- The Medical Research Center for Globalization of Herbal Medicine, Daegu Haany University, Gyeongsan, Gyeongsangbuk-Do 38610, Republic of Korea.,Department of Preventive Medicine, College of Korean Medicine, Daegu Haany University, Gyeongsan, Gyeongsangbuk-Do 38610, Republic of Korea
| | - Sung Gu Kang
- Department of Urology, Korea University College of Medicine, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Soyoung Cho
- Department of Science for Aging, Yonsei University, Seodaemun-gu, Seoul 03722, Republic of Korea.,Severance Integrative Research Institute for Cerebral & Cardiovascular Diseases (SIRIC), Yonsei University College of Medicine, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Wonsuck Yoon
- Allergy Immunology Center, Korea University College of Medicine, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Ji Hong Lim
- Department of Biomedical Chemistry, Konkuk University, Chungju, Chungbuk 27478, Republic of Korea
| | - Sang-Hyun Min
- New Drug Development Center, DGMIF, Dong-gu, Daegu 41061, Republic of Korea
| | - Tae Ho Lee
- Division of Gerontology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Byeong Mo Kim
- Severance Integrative Research Institute for Cerebral & Cardiovascular Diseases (SIRIC), Yonsei University College of Medicine, Seodaemun-gu, Seoul 03722, Republic of Korea
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23
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Videira RA, Andrade PB, Monteiro LS, Valentão P, Ferreira PMT, Pereira DM. Toxicity and structure-activity relationship (SAR) of α,β-dehydroamino acids against human cancer cell lines. Toxicol In Vitro 2017; 47:26-37. [PMID: 29107685 DOI: 10.1016/j.tiv.2017.10.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 10/06/2017] [Accepted: 10/26/2017] [Indexed: 12/18/2022]
Abstract
A library of N-protected dehydroamino acids, namely dehydroalanine, dehydroaminobutyric acid and dehydrophenylalanine derivatives, was screened in three human cancer cell lines [(lung (A549), gastric (AGS) and neuroblastoma (SH-SY5Y)] in order to characterize their toxicological profile and identify new molecules with potential anticancer activity. Results showed N-protected dehydrophenylalanine and dehydroaminobutyric acid derivatives have no or low toxicity for all tested cell lines. The N-protected dehydroalanines exhibit significant toxic effects and the AGS and SH-SY5Y cells were significantly more vulnerable than A549 cells. Four α,β-dehydroalanine derivatives, with IC50<62.5μM, were selected to investigate the pathways by which these compounds promote cell death. All compounds, at their IC50 concentrations, were able to induce apoptosis in both AGS and SH-SY5Y cell lines. In both cell lines, loss of mitochondrial membrane potential (ΔΨm) was found and caspase activity was increased, namely endoplasmic reticulum-resident caspase-4 in AGS cells and caspase-3/7 in SH-SY5Y cells. When evaluated in a non-cancer cell line, the molecules displayed no to low toxicity, thus suggesting some degree of selectivity for cancer cells. The results indicate that α,β-dehydroalanine derivatives can be considered a future resource of compounds able to work as anticancer drugs.
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Affiliation(s)
- Romeu A Videira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, No 228, 4050-213 Porto, Portugal.
| | - Paula B Andrade
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, No 228, 4050-213 Porto, Portugal.
| | - Luís S Monteiro
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Patrícia Valentão
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, No 228, 4050-213 Porto, Portugal.
| | - Paula M T Ferreira
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - David M Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, No 228, 4050-213 Porto, Portugal.
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24
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Jun HK, Jung YJ, Ji S, An SJ, Choi BK. Caspase-4 activation by a bacterial surface protein is mediated by cathepsin G in human gingival fibroblasts. Cell Death Differ 2017; 25:380-391. [PMID: 29077095 DOI: 10.1038/cdd.2017.167] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 08/22/2017] [Accepted: 09/08/2017] [Indexed: 12/16/2022] Open
Abstract
Caspase-4 is an inflammatory caspase; however, its mechanism of activation is poorly understood. In this study, we demonstrate that Td92, a surface protein of the periodontal pathogen Treponema denticola and a homolog of the Treponema pallidum surface protein Tp92, activates caspase-4 and induces pyroptosis in primary cultured human gingival fibroblasts (HGFs) via cathepsin G activation. Cathepsin G inhibition or siRNA knockdown of cathepsin G inhibited Td92-induced caspase-4 activation and cell death. Td92-induced cell death was significantly inhibited by siRNA knockdown of gasdermin D. Td92 treatment resulted in the binding of cathepsin G to caspase-4 and the coaggregation of these two molecules. In addition, Td92 induced IL-1α expression and secretion, and this was inhibited by caspase-4 knockdown. Cytochalasin D did not block Td92-induced caspase-4 activation, suggesting that Td92 internalization is not required for caspase-4 activation. Our results demonstrate that cathepsin G is directly engaged in caspase-4 activation by a bacterial ligand, which is responsible for cell death and IL-1α secretion in HGFs.
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Affiliation(s)
- Hye-Kyoung Jun
- Department of Oral Microbiology and Immunology, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Young-Jung Jung
- Department of Oral Microbiology and Immunology, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Suk Ji
- Department of Periodontology, Ajou University Hospital, 164 Worldcup-ro, Yeongtong-gu, Suwon 16499, Republic of Korea
| | - Sun-Jin An
- Department of Oral Microbiology and Immunology, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Bong-Kyu Choi
- Department of Oral Microbiology and Immunology, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea.,Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
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25
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Kheitan S, Minuchehr Z, Soheili ZS. Exploring the cross talk between ER stress and inflammation in age-related macular degeneration. PLoS One 2017; 12:e0181667. [PMID: 28742151 PMCID: PMC5524348 DOI: 10.1371/journal.pone.0181667] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 07/05/2017] [Indexed: 12/15/2022] Open
Abstract
Increasing evidence demonstrates that inflammation and endoplasmic reticulum (ER) stress is implicated in the development and progression of age-related macular degeneration (AMD), a multifactorial neurodegenerative disease. However the cross talk between these cellular mechanisms has not been clearly and fully understood. The present study investigates a possible intersection between ER stress and inflammation in AMD. In this study, we recruited two collections of involved protein markers to retrieve their interaction information from IMEx-curated databases, which are the most well- known protein-protein interaction collections, allowing us to design an intersection network for AMD that is unprecedented. In order to find expression activated subnetworks, we utilized AMD expression profiles in our network. In addition, we studied topological characteristics of the most expressed active subnetworks to identify the hubs. With regard to topological quantifications and expressional activity, we reported a list of the most pivotal hubs which are potentially applicable as probable therapeutic targets. Furthermore, we introduced MAPK signaling pathway as a significantly involved pathway in the association between ER stress and inflammation, leading to promising new directions in discovering AMD formation mechanisms and possible treatments.
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Affiliation(s)
- Samira Kheitan
- Systems Biotechnology Department, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Zarrin Minuchehr
- Systems Biotechnology Department, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
- * E-mail:
| | - Zahra-Soheila Soheili
- Molecular Medicine Department, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
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26
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Kaul Z, Chakrabarti O. Tumor susceptibility gene 101 regulates predisposition to apoptosis via ESCRT machinery accessory proteins. Mol Biol Cell 2017; 28:2106-2122. [PMID: 28539405 PMCID: PMC5509423 DOI: 10.1091/mbc.e16-12-0855] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 05/11/2017] [Accepted: 05/16/2017] [Indexed: 12/21/2022] Open
Abstract
ESCRT proteins are implicated in myriad cellular processes, including endosome formation, fusion of autophagosomes/amphisomes with lysosomes, and apoptosis. The role played by these proteins in either facilitating or protecting against apoptosis is unclear. In this study, while trying to understand how deficiency of Mahogunin RING finger 1 (MGRN1) affects cell viability, we uncovered a novel role for its interactor, the ESCRT-I protein TSG101: it directly participates in mitigating ER stress-mediated apoptosis. The association of TSG101 with ALIX prevents predisposition to apoptosis, whereas ALIX-ALG-2 interaction favors a death phenotype. Altered Ca2+ homeostasis in cells and a simultaneous increase in the protein levels of ALIX and ALG-2 are required to elicit apoptosis by activating ER stress-associated caspase 4/12. We further demonstrate that in the presence of membrane-associated, disease-causing prion protein CtmPrP, increased ALIX and ALG-2 levels are detected along with ER stress markers and associated caspases in transgenic brain lysates and cells. These effects were rescued by overexpression of TSG101. This is significant because MGRN1 deficiency is closely associated with neurodegeneration and prenatal and neonatal mortality, which could be due to excess cell death in selected brain regions or myocardial apoptosis during embryonic development.
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Affiliation(s)
- Zenia Kaul
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
| | - Oishee Chakrabarti
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
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27
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Shibamoto M, Hirata H, Eguchi H, Sawada G, Sakai N, Kajiyama Y, Mimori K. The loss of CASP4 expression is associated with poor prognosis in esophageal squamous cell carcinoma. Oncol Lett 2017; 13:1761-1766. [PMID: 28454321 DOI: 10.3892/ol.2017.5646] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 08/12/2016] [Indexed: 12/19/2022] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) has high biological malignant potential among the various digestive tract cancers and is associated with a poor prognosis. To identify novel genes involved in tumor progression, the present study analyzed the genetic and transcriptional alterations in two clinical cohorts, totaling 157 cases of ESCC (78 cases from the discovery set and 79 cases from the validation set). From the discovery set, gene expression and copy number profiles were analyzed using expression arrays and array-comparative genomic hybridization, respectively. Notably, a copy number loss of caspase-4 (CASP4) was observed in 82% of ESCC cases and CASP4 expression levels were significantly associated with copy number levels. Gene set enrichment analysis demonstrated that the upregulation of CASP4 expression levels was associated with the signaling pathways involved in apoptosis, inflammatory responses and immune responses. The present study demonstrated that CASP4 expression levels were significantly associated with the expression levels of the endoplasmic reticulum (ER) stress marker glucose-regulated protein 78, indicating that CASP4 has a role in cell death induced by ER stress in ESCC. In the survival analysis the CASP4 low expression group exhibited a poor prognosis, compared with the CASP4 high expression group in the discovery set (P=0.003); this observation was reproduced in the validation set (P=0.037). Therefore, the results of the current study suggest that CASP4 may function as a tumor-suppressor gene and may have applications as a biomarker for the prediction of the prognosis in ESCC.
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Affiliation(s)
- Misako Shibamoto
- Department of Esophageal and Gastroenterological Surgery, Juntendo University School of Medicine, Tokyo 113-8431, Japan
| | - Hidenari Hirata
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Oita 874-0838, Japan.,Department of Radiology, Kyushu University Beppu Hospital, Beppu, Oita 874-0838, Japan
| | - Hidetoshi Eguchi
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Oita 874-0838, Japan
| | - Genta Sawada
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Oita 874-0838, Japan
| | - Noritaka Sakai
- Department of Esophageal and Gastroenterological Surgery, Juntendo University School of Medicine, Tokyo 113-8431, Japan
| | - Yoshiaki Kajiyama
- Department of Esophageal and Gastroenterological Surgery, Juntendo University School of Medicine, Tokyo 113-8431, Japan
| | - Koshi Mimori
- Department of Surgery, Kyushu University Beppu Hospital, Beppu, Oita 874-0838, Japan
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28
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Matsunaga D, Sreekumar PG, Ishikawa K, Terasaki H, Barron E, Cohen P, Kannan R, Hinton DR. Humanin Protects RPE Cells from Endoplasmic Reticulum Stress-Induced Apoptosis by Upregulation of Mitochondrial Glutathione. PLoS One 2016; 11:e0165150. [PMID: 27783653 PMCID: PMC5081188 DOI: 10.1371/journal.pone.0165150] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 10/09/2016] [Indexed: 01/31/2023] Open
Abstract
Humanin (HN) is a small mitochondrial-encoded peptide with neuroprotective properties. We have recently shown protection of retinal pigmented epithelium (RPE) cells by HN in oxidative stress; however, the effect of HN on endoplasmic reticulum (ER) stress has not been evaluated in any cell type. Our aim here was to study the effect of HN on ER stress-induced apoptosis in RPE cells with a specific focus on ER-mitochondrial cross-talk. Dose dependent effects of ER stressors (tunicamycin (TM), brefeldin A, and thapsigargin) were studied after 12 hr of treatment in confluent primary human RPE cells with or without 12 hr of HN pretreatment (1-20 μg/mL). All three ER stressors induced RPE cell apoptosis in a dose dependent manner. HN pretreatment significantly decreased the number of apoptotic cells with all three ER stressors in a dose dependent manner. HN pretreatment similarly protected U-251 glioma cells from TM-induced apoptosis in a dose dependent manner. HN pretreatment significantly attenuated activation of caspase 3 and ER stress-specific caspase 4 induced by TM. TM treatment increased mitochondrial superoxide production, and HN co-treatment resulted in a decrease in mitochondrial superoxide compared to TM treatment alone. We further showed that depleted mitochondrial glutathione (GSH) levels induced by TM were restored with HN co-treatment. No significant changes were found for the expression of several antioxidant enzymes between TM and TM plus HN groups except for the expression of glutamylcysteine ligase catalytic subunit (GCLC), the rate limiting enzyme required for GSH biosynthesis, which is upregulated with TM and TM+HN treatment. These results demonstrate that ER stress promotes mitochondrial alterations in RPE that lead to apoptosis. We further show that HN has a protective effect against ER stress-induced apoptosis by restoring mitochondrial GSH. Thus, HN should be further evaluated for its therapeutic potential in disorders linked to ER stress.
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Affiliation(s)
- Douglas Matsunaga
- Department of Pathology and Ophthalmology, USC Roski Eye Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA, United States of America
| | - Parameswaran G. Sreekumar
- Arnold and Mabel Beckman Macular Research Center, Doheny Eye Institute, Los Angeles, CA, United States of America
| | - Keijiro Ishikawa
- Arnold and Mabel Beckman Macular Research Center, Doheny Eye Institute, Los Angeles, CA, United States of America
| | - Hiroto Terasaki
- Arnold and Mabel Beckman Macular Research Center, Doheny Eye Institute, Los Angeles, CA, United States of America
| | - Ernesto Barron
- Arnold and Mabel Beckman Macular Research Center, Doheny Eye Institute, Los Angeles, CA, United States of America
| | - Pinchas Cohen
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, United States of America
| | - Ram Kannan
- Arnold and Mabel Beckman Macular Research Center, Doheny Eye Institute, Los Angeles, CA, United States of America
| | - David R. Hinton
- Department of Pathology and Ophthalmology, USC Roski Eye Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA, United States of America
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29
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Kutty RK, Samuel W, Boyce K, Cherukuri A, Duncan T, Jaworski C, Nagineni CN, Redmond TM. Proinflammatory cytokines decrease the expression of genes critical for RPE function. Mol Vis 2016; 22:1156-1168. [PMID: 27733811 PMCID: PMC5055142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 10/06/2016] [Indexed: 11/06/2022] Open
Abstract
PURPOSE Proinflammatory cytokines interferon gamma (IFN-γ), tumor necrosis factor alpha (TNF-α), and interleukin-1 beta (IL-1β) secreted by infiltrating lymphocytes or macrophages may play a role in triggering RPE dysfunction associated with age-related macular degeneration (AMD). Binding of these proinflammatory cytokines to their specific receptors residing on the RPE cell surface can activate signaling pathways that, in turn, may dysregulate cellular gene expression. The purpose of the present study was to investigate whether IFN-γ, TNF-α, and IL-1β have an adverse effect on the expression of genes essential for RPE function, employing the RPE cell line ARPE-19 as a model system. METHODS ARPE-19 cells were cultured for 3-4 months until they exhibited epithelial morphology and expressed mRNAs for visual cycle genes. The differentiated cells were treated with IFN-γ, TNF-α, and/or IL-1β, and gene expression was analyzed with real-time PCR analysis. Western immunoblotting was employed for the detection of proteins. RESULTS Proinflammatory cytokines (IFN-γ + TNF-α + IL-1β) greatly increased the expression of chemokines and cytokines in cultured ARPE-19 cells that exhibited RPE characteristics. However, this response was accompanied by markedly decreased expression of genes important for RPE function, such as CDH1, RPE65, RDH5, RDH10, TYR, and MERTK. This was associated with decreased expression of the genes MITF, TRPM1, and TRPM3, as well as microRNAs miR-204 and miR-211, which are known to regulate RPE-specific gene expression. The decreased expression of the epithelial marker gene CDH1 was associated with increased expression of mesenchymal marker genes (CDH2, VIM, and CCND1) and epithelial-mesenchymal transition (EMT) promoting transcription factor genes (ZEB1 and SNAI1). CONCLUSIONS RPE cells exposed to proinflammatory cytokines IFN-γ, TNF-α, and IL-1β showed decreased expression of key genes involved in the visual cycle, epithelial morphology, and phagocytosis. This adverse effect of proinflammatory cytokines, which could be secreted by infiltrating lymphocytes or macrophages, on the expression of genes indispensable for RPE function may contribute to the RPE dysfunction implicated in AMD pathology.
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Affiliation(s)
- R. Krishnan Kutty
- Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - William Samuel
- Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Kaifa Boyce
- Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Aswini Cherukuri
- Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Todd Duncan
- Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Cynthia Jaworski
- Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Chandrasekharam N. Nagineni
- Radiation Biology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - T. Michael Redmond
- Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD
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30
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García de la Cadena S, Massieu L. Caspases and their role in inflammation and ischemic neuronal death. Focus on caspase-12. Apoptosis 2016; 21:763-77. [DOI: 10.1007/s10495-016-1247-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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31
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Guo H, Chen L, Cui H, Peng X, Fang J, Zuo Z, Deng J, Wang X, Wu B. Research Advances on Pathways of Nickel-Induced Apoptosis. Int J Mol Sci 2015; 17:E10. [PMID: 26703593 PMCID: PMC4730257 DOI: 10.3390/ijms17010010] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 12/15/2015] [Accepted: 12/16/2015] [Indexed: 12/12/2022] Open
Abstract
High concentrations of nickel (Ni) are harmful to humans and animals. Ni targets a number of organs and produces multiple toxic effects. Apoptosis is important in Ni-induced toxicity of the kidneys, liver, nerves, and immune system. Apoptotic pathways mediated by reactive oxygen species (ROS), mitochondria, endoplasmic reticulum (ER), Fas, and c-Myc participate in Ni-induced cell apoptosis. However, the exact mechanism of apoptosis caused by Ni is still unclear. Understanding the mechanism of Ni-induced apoptosis may help in designing measures to prevent Ni toxicity.
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Affiliation(s)
- Hongrui Guo
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China.
| | - Lian Chen
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China.
| | - Hengmin Cui
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China.
- College of Veterinary Medicine, Sichuan Agricultural University Ya'an, Ya'an 625014, China.
| | - Xi Peng
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China.
- College of Veterinary Medicine, Sichuan Agricultural University Ya'an, Ya'an 625014, China.
| | - Jing Fang
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China.
- College of Veterinary Medicine, Sichuan Agricultural University Ya'an, Ya'an 625014, China.
| | - Zhicai Zuo
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China.
- College of Veterinary Medicine, Sichuan Agricultural University Ya'an, Ya'an 625014, China.
| | - Junliang Deng
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China.
- College of Veterinary Medicine, Sichuan Agricultural University Ya'an, Ya'an 625014, China.
| | - Xun Wang
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China.
- College of Veterinary Medicine, Sichuan Agricultural University Ya'an, Ya'an 625014, China.
| | - Bangyuan Wu
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Ya'an 625014, China.
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Matsui A, Kaneko H, Kachi S, Ye F, Hwang SJ, Takayama K, Nagasaka Y, Sugita T, Terasaki H. Expression of Vascular Endothelial Growth Factor by Retinal Pigment Epithelial Cells Induced by Amyloid-β Is Depressed by an Endoplasmic Reticulum Stress Inhibitor. Ophthalmic Res 2015; 55:37-44. [PMID: 26560903 DOI: 10.1159/000440885] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 09/07/2015] [Indexed: 11/19/2022]
Abstract
PURPOSE Amyloid-β (Aβ) is a 36- to 43-amino-acid peptide that is a constituent of drusen, and it has been demonstrated to upregulate vascular endothelial growth factor (VEGF) expression by retinal pigment epithelial (RPE) cells. This study aimed to determine whether 4-phenylbutyl phosphonylacetate (PBA), a known endoplasmic reticulum (ER) stress inhibitor, can reduce Aβ-induced expression of VEGF in RPE cells. METHODS Aβ was added to the medium of regularly cultured or polarized ARPE-19 cells, a human RPE cell line, with or without PBA. The levels of VEGF and ER stress markers, namely GRP78/Bip, cleaved caspases 4 and 12 and GADD153/C-EBP homologous protein, were determined by enzyme-linked immunoassay, immunocytochemistry and Western blotting. RESULTS Exposure of ARPE-19 cells to Aβ induced GRP78/Bip expression and activated caspases 4 and 12; however, their expression was decreased by simultaneous exposure to PBA. Aβ increased the expression of VEGF both in regularly cultured and polarized ARPE-19 cells, but it was suppressed by PBA. PBA did not cause RPE cell apoptosis. CONCLUSION Aβ has been suggested to be involved in the development of age-related macular degeneration; therefore, our findings suggest that drugs that target ER stress should be considered for the treatment of age-related macular degeneration.
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Affiliation(s)
- Asako Matsui
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Izgi K, Iskender B, Jauch J, Sezen S, Cakir M, Charpentier M, Canatan H, Sakalar C. Myrtucommulone-A Induces both Extrinsic and Intrinsic Apoptotic Pathways in Cancer Cells. J Biochem Mol Toxicol 2015; 29:432-439. [PMID: 26032814 DOI: 10.1002/jbt.21716] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 04/30/2015] [Accepted: 05/07/2015] [Indexed: 11/11/2022]
Abstract
Myrtucommulone-A is the active compound derived from Myrtus communis. The molecular targets of myrtucommulone-A is widely unknown, which impedes its potential therapeutic use. In this study, we demonstrated the cytotoxicity of MC-A and its potential to induce apoptosis in cancer cells. Myrtucommulone-A was also found to be antiproliferative and strongly inhibited cancer cell migration. Eighty four apoptotic pathway genes were used to assess the effect of myrtucommulone-A on cancer cells. Myrtucommulone-A mediated an increase in apoptotic genes including Fas, FasL, Gadd45a, Tnf, Tnfsf12, Trp53, and caspase 4. The increase in myrtucommulone-A dose (25 μM versus 6.25 μM) also upregulated the expression of genes, which are involved mainly in apoptosis, regulation of apoptosis, role of mitochondria in apoptotic signaling, cytokine activity, and tumor necrosis factor signaling. Our data indicate that myrtucommulone-A could be utilized as a potential therapeutic compound with its molecular targets in apoptotic pathways.
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Affiliation(s)
- Kenan Izgi
- Department of Medical Biochemistry, Faculty of Medicine, Erciyes University, Melikgazi, 38039, Kayseri, Turkey.,Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Melikgazi, 38039, Kayseri, Turkey
| | - Banu Iskender
- Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Melikgazi, 38039, Kayseri, Turkey.,Department of Medical Biology, Faculty of Medicine, Erciyes University, Melikgazi, 38039, Kayseri, Turkey
| | - Johann Jauch
- Organische Chemie II, Universität des Saarlandes, Saarbrücken, Germany
| | - Sedat Sezen
- Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Melikgazi, 38039, Kayseri, Turkey.,Department of Medical Biology, Faculty of Medicine, Erciyes University, Melikgazi, 38039, Kayseri, Turkey
| | - Mustafa Cakir
- Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Melikgazi, 38039, Kayseri, Turkey.,Department of Medical Biology, Faculty of Medicine, Erciyes University, Melikgazi, 38039, Kayseri, Turkey
| | - Maël Charpentier
- Organische Chemie II, Universität des Saarlandes, Saarbrücken, Germany
| | - Halit Canatan
- Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Melikgazi, 38039, Kayseri, Turkey.,Department of Medical Biology, Faculty of Medicine, Erciyes University, Melikgazi, 38039, Kayseri, Turkey
| | - Cagri Sakalar
- Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Melikgazi, 38039, Kayseri, Turkey.,Department of Medical Biology, Faculty of Medicine, Erciyes University, Melikgazi, 38039, Kayseri, Turkey
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Obiorah IE, Jordan VC. Differences in the rate of oestrogen-induced apoptosis in breast cancer by oestradiol and the triphenylethylene bisphenol. Br J Pharmacol 2015; 171:4062-72. [PMID: 24819221 DOI: 10.1111/bph.12762] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 04/16/2014] [Accepted: 04/25/2014] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND AND PURPOSE Triphenylethylene (TPE)-like compounds were the first agents to be used in the treatment of metastatic breast cancer in postmenopausal women. Although structurally related to the anti-oestrogen, 4-hydroxytamoxifen, TPEs possess oestrogenic properties in fully oestrogenized breast cancer cells but do not induce apoptosis with short-term treatment in long-term oestrogen-deprived breast cancer cells. This study determined the differential effects of bisphenol, a TPE, on growth and apoptosis based on the modulation of the shape of the ligand-oestrogen receptor complex. EXPERIMENTAL APPROACH Apoptotic flow cytometric studies were used to evaluate apoptosis over time. Proliferation of the breast cancer cells was assessed using DNA quantification and cell cycle analysis. Real-time PCR was performed to quantify mRNA levels of apoptotic genes. Regulation of cell cycle and apoptotic genes was determined using PCR-based arrays. KEY RESULTS Bisphenol induced an up-regulation of cell cycle genes similar to those induced by 17β oestradiol (E2 ). Unlike the changes induced by E2 that occur after 24 h, the apoptosis evoked by bisphenol occurred after 4 days, with quantifiable apoptotic changes noted at 6 days. A prolonged up-regulation of endoplasmic reticulum stress and inflammatory stress response genes was observed with subsequent activation of apoptosis-related genes in the second week of treatment with bisphenol. CONCLUSIONS AND IMPLICATIONS The bisphenol: ERα complex induces delayed biological effects on the growth and apoptosis of breast cancer cells. Both the shape of the complex and the duration of treatment control the initiation of apoptosis.
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Affiliation(s)
- I E Obiorah
- Tumor Biology Training Program, Georgetown University, Washington, DC, USA
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Johnson L, Atanasova KR, Bui PQ, Lee J, Hung SC, Yilmaz Ö, Ojcius DM. Porphyromonas gingivalis attenuates ATP-mediated inflammasome activation and HMGB1 release through expression of a nucleoside-diphosphate kinase. Microbes Infect 2015; 17:369-77. [PMID: 25828169 PMCID: PMC4426005 DOI: 10.1016/j.micinf.2015.03.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 03/19/2015] [Indexed: 12/13/2022]
Abstract
Many intracellular pathogens evade the innate immune response in order to survive and proliferate within infected cells. We show that Porphyromonas gingivalis, an intracellular opportunistic pathogen, uses a nucleoside-diphosphate kinase (NDK) homolog to inhibit innate immune responses due to stimulation by extracellular ATP, which acts as a danger signal that binds to P2X7 receptors and induces activation of an inflammasome and caspase-1. Thus, infection of gingival epithelial cells (GECs) with wild-type P. gingivalis results in inhibition of ATP-induced caspase-1 activation. However, ndk-deficient P. gingivalis is less effective than wild-type P. gingivalis in reducing ATP-mediated caspase-1 activation and secretion of the pro-inflammatory cytokine, IL-1β, from infected GECs. Furthermore, P. gingivalis NDK modulates release of high-mobility group protein B1 (HMGB1), a pro-inflammatory danger signal, which remains associated with chromatin in healthy cells. Unexpectedly, infection with either wild-type or ndk-deficient P. gingivalis causes release of HMGB1 from the nucleus to the cytosol. But HMGB1 is released to the extracellular space when uninfected GECs are further stimulated with ATP, and there is more HMGB1 released from the cells when ATP-treated cells are infected with ndk-deficient mutant than wild-type P. gingivalis. Our results reveal that NDK plays a significant role in inhibiting P2X7-dependent inflammasome activation and HMGB1 release from infected GECs.
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Affiliation(s)
- Larry Johnson
- Department of Molecular Cell Biology, University of California, Merced, CA 95343, USA; Health Sciences Research Institute, University of California, Merced, CA 95343, USA
| | - Kalina R Atanasova
- Department of Periodontology, University of Florida, Gainesville, FL 32610, USA; Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA
| | - Phuong Q Bui
- Department of Molecular Cell Biology, University of California, Merced, CA 95343, USA; Health Sciences Research Institute, University of California, Merced, CA 95343, USA
| | - Jungnam Lee
- Department of Periodontology, University of Florida, Gainesville, FL 32610, USA; Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA
| | - Shu-Chen Hung
- Department of Molecular Cell Biology, University of California, Merced, CA 95343, USA; Health Sciences Research Institute, University of California, Merced, CA 95343, USA
| | - Özlem Yilmaz
- Department of Periodontology, University of Florida, Gainesville, FL 32610, USA; Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA.
| | - David M Ojcius
- Department of Molecular Cell Biology, University of California, Merced, CA 95343, USA; Health Sciences Research Institute, University of California, Merced, CA 95343, USA.
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Huang L, Zhang T, Li S, Duan J, Ye F, Li H, She Z, Gao G, Yang X. Anthraquinone G503 induces apoptosis in gastric cancer cells through the mitochondrial pathway. PLoS One 2014; 9:e108286. [PMID: 25268882 PMCID: PMC4182468 DOI: 10.1371/journal.pone.0108286] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Accepted: 08/19/2014] [Indexed: 01/08/2023] Open
Abstract
G503 is an anthraquinone compound isolated from the secondary metabolites of a mangrove endophytic fungus from the South China Sea. The present study elucidates the anti-tumor activity and the underlying mechanism of G503. Cell viability assay performed in nine cancer cell lines and two normal cell lines demonstrated that the gastric cancer cell line SGC7901 is the most G503-sensitive cancer cells. G503 induced SGC7901 cell death via apoptosis. G503 exposure activated caspases-3, -8 and -9. Pretreatment with the pan-caspase inhibitor Z-VAD-FMK and caspase-9 inhibitor Z-LEHD-FMK, but not caspase-8 inbibitor Z-IETD-FMK, attenuated the effect of G503. These results suggested that the intrinsic mitochondrial apoptosis pathway, rather than the extrinsic pathway, was involved in G503-induced apoptosis. Furthermore, G503 increased the ratio of Bax to Bcl-2 in the mitochondria and decreased the ratio in the cytosol. G503 treatment resulted in mitochondrial depolarization, cytochrome c release and the subsequent cleavage of caspase -9 and -3. Moreover, it is reported that the endoplasmic reticulum apoptosis pathway may also be activated by G503 by inducing capase-4 cleavage. In consideration of the lower 50% inhibitory concentration for gastric cancer cells, G503 may serve as a promising candidate for gastric cancer chemotherapy.
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Affiliation(s)
- Lijun Huang
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Ting Zhang
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Shuai Li
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Junting Duan
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Fang Ye
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Hanxiang Li
- Key Laboratory of Functional Molecules from Marine Microorganisms (Sun Yat-sen University), Department of Education of Guangdong Province, Guangzhou, Guangdong Province, China
| | - Zhigang She
- Key Laboratory of Functional Molecules from Marine Microorganisms (Sun Yat-sen University), Department of Education of Guangdong Province, Guangzhou, Guangdong Province, China
| | - Guoquan Gao
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- China Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, Guangdong Province, China
| | - Xia Yang
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong Province, China
- Key Laboratory of Functional Molecules from Marine Microorganisms (Sun Yat-sen University), Department of Education of Guangdong Province, Guangzhou, Guangdong Province, China
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Wang S, Wang X, Luo F, Tang X, Li K, Hu X, Bai J. Panaxatriol saponin ameliorated liver injury by acetaminophen via restoring thioredoxin-1 and pro-caspase-12. Liver Int 2014; 34:1068-73. [PMID: 24119161 DOI: 10.1111/liv.12329] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 08/31/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Acetaminophen (APAP) is widely used as an antipyretic agent which is safe at therapeutic doses. However, overdose of APAP induces fatal and non-fatal hepatic necroses. The chemical reactive metabolites of APAP initiate toxicity and inflammatory response within the liver and lead to acute liver failure. However, the mechanism underlying APAP-induced liver injury is unknown. Thioredoxin-1 (TRX-1) is an important redox regulator, which plays roles in resisting oxidative stress, regulating inflammation and inhibiting apoptosis. Panaxatriol saponin (PTS) is one of the biologically active fractions of Panax notoginseng which is a traditional Chinese medicine. The aim of this study was to investigate the mechanism on PTS protecting liver from APAP hepatotoxicity. METHODS Mice were divided into three groups, control group, APAP group and APAP combined with PTS group. Alanine aminotransferase (ALT) and tumour necrosis factor-alpha (TNF-α) were detected by ELISA. TRX-1 and pro-caspase-12 were examined by Western blotting. RESULTS Our results showed PTS inhibited the levels of ALT and TNF-α by APAP. Pretreatment with PTS ameliorated liver injury induced by APAP. The decrease in TRX-1 expression was restored by PTS, as well as decreased pro-caspase-12 expression was inhibited by PTS. These data suggest that PTS has roles in suppressing the hepatotoxicity by APAP. CONCLUSION Panaxatriol saponin ameliorated liver injury by APAP through restoring the expression TRX-1 and inhibiting pro-caspase-12 decrease.
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Affiliation(s)
- Shengdong Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, China; Department of Science and Education Section, the seventh People's Hospital of Hangzhou, Hangzhou, China
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Hui KF, Chiang AKS. Combination of proteasome and class I HDAC inhibitors induces apoptosis of NPC cells through an HDAC6-independent ER stress-induced mechanism. Int J Cancer 2014; 135:2950-61. [PMID: 24771510 DOI: 10.1002/ijc.28924] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 04/16/2014] [Indexed: 01/05/2023]
Abstract
The current paradigm stipulates that inhibition of histone deacetylase (HDAC) 6 is essential for the combinatorial effect of proteasome and HDAC inhibitors for the treatment of cancers. Our study aims to investigate the effect of combining different class I HDAC inhibitors (without HDAC6 action) with a proteasome inhibitor on apoptosis of nasopharyngeal carcinoma (NPC). We found that combination of a proteasome inhibitor, bortezomib, and several class I HDAC inhibitors, including MS-275, apicidin and romidepsin, potently induced killing of NPC cells both in vitro and in vivo. Among the drug pairs, combination of bortezomib and romidepsin (bort/romidepsin) was the most potent and could induce apoptosis at low nanomolar concentrations. The apoptosis of NPC cells was reactive oxygen species (ROS)- and caspase-dependent but was independent of HDAC6 inhibition. Of note, bort/romidepsin might directly suppress the formation of aggresome through the downregulation of c-myc. In addition, two markers of endoplasmic reticulum (ER) stress-induced apoptosis, ATF-4 and CHOP/GADD153, were upregulated, whereas a specific inhibitor of caspase-4 (an initiator of ER stress-induced apoptosis) could suppress the apoptosis. When ROS level in the NPC cells was reduced to the untreated level, ER stress-induced caspase activation was abrogated. Collectively, our data demonstrate a model of synergism between proteasome and class I HDAC inhibitors in the induction of ROS-dependent ER stress-induced apoptosis of NPC cells, independent of HDAC6 inhibition, and provide the rationale to combine the more specific and potent class I HDAC inhibitors with proteasome inhibitors for the treatment of cancers.
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Affiliation(s)
- Kwai Fung Hui
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China; Center for Nasopharyngeal Carcinoma Research, The University of Hong Kong, Hong Kong SAR, China
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Tufo G, Jones AWE, Wang Z, Hamelin J, Tajeddine N, Esposti DD, Martel C, Boursier C, Gallerne C, Migdal C, Lemaire C, Szabadkai G, Lemoine A, Kroemer G, Brenner C. The protein disulfide isomerases PDIA4 and PDIA6 mediate resistance to cisplatin-induced cell death in lung adenocarcinoma. Cell Death Differ 2014; 21:685-95. [PMID: 24464223 PMCID: PMC3978299 DOI: 10.1038/cdd.2013.193] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 11/14/2013] [Accepted: 12/02/2013] [Indexed: 01/03/2023] Open
Abstract
Intrinsic and acquired chemoresistance are frequent causes of cancer eradication failure. Thus, long-term cis-diaminedichloroplatine(II) (CDDP) or cisplatin treatment is known to promote tumor cell resistance to apoptosis induction via multiple mechanisms involving gene expression modulation of oncogenes, tumor suppressors and blockade of pro-apoptotic mitochondrial membrane permeabilization. Here, we demonstrate that CDDP-resistant non-small lung cancer cells undergo profound remodeling of their endoplasmic reticulum (ER) proteome (>80 proteins identified by proteomics) and exhibit a dramatic overexpression of two protein disulfide isomerases, PDIA4 and PDIA6, without any alteration in ER-cytosol Ca(2+) fluxes. Using pharmacological and genetic inhibition, we show that inactivation of both proteins directly stimulates CDDP-induced cell death by different cellular signaling pathways. PDIA4 inactivation restores a classical mitochondrial apoptosis pathway, while knockdown of PDIA6 favors a non-canonical cell death pathway sharing some necroptosis features. Overexpression of both proteins has also been found in lung adenocarcinoma patients, suggesting a clinical importance of these proteins in chemoresistance.
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Affiliation(s)
- G Tufo
- INSERM UMR-S 769, LabEx LERMIT, Châtenay-Malabry, France
- Faculté de Pharmacie, Université de Paris-Sud, Châtenay-Malabry, France
| | - A W E Jones
- Department of Cell and Developmental Biology, University College London, London, UK
| | - Z Wang
- INSERM UMR-S 769, LabEx LERMIT, Châtenay-Malabry, France
- Faculté de Pharmacie, Université de Paris-Sud, Châtenay-Malabry, France
| | - J Hamelin
- APHP Hôpital P. Brousse, Biochimie et oncogénétique, INSERM U1004, Villejuif, France
| | - N Tajeddine
- INSERM U848, Institut Gustave Roussy, Université Paris-Sud 11, PR1, 39 rue Camille Desmoulins, Villejuif, France
| | - D D Esposti
- APHP Hôpital P. Brousse, Biochimie et oncogénétique, INSERM U1004, Villejuif, France
| | - C Martel
- INSERM UMR-S 769, LabEx LERMIT, Châtenay-Malabry, France
- Faculté de Pharmacie, Université de Paris-Sud, Châtenay-Malabry, France
- Montreal Heart Institute, Centre de Recherche, Montreal, Quebec, Canada
| | | | - C Gallerne
- INSERM UMR-S 769, LabEx LERMIT, Châtenay-Malabry, France
- Faculté de Pharmacie, Université de Paris-Sud, Châtenay-Malabry, France
| | - C Migdal
- Faculté de Pharmacie, Université de Paris-Sud, Châtenay-Malabry, France
- INSERM U 996, Châtenay-Malabry, France
| | - C Lemaire
- INSERM UMR-S 769, LabEx LERMIT, Châtenay-Malabry, France
- Department of Biology, University of Versailles–St Quentin, Versailles, France
| | - G Szabadkai
- Department of Cell and Developmental Biology, University College London, London, UK
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - A Lemoine
- APHP Hôpital P. Brousse, Biochimie et oncogénétique, INSERM U1004, Villejuif, France
| | - G Kroemer
- INSERM U848, Institut Gustave Roussy, Université Paris-Sud 11, PR1, 39 rue Camille Desmoulins, Villejuif, France
- Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France
- Metabolomics Platform, Institut Gustave Roussy, Villejuif, France
- Equipe 11 labellisée par la Ligue contre le Cancer, Centre de Recherche des Cordeliers, Paris, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, 75015 Paris, France
| | - C Brenner
- INSERM UMR-S 769, LabEx LERMIT, Châtenay-Malabry, France
- Faculté de Pharmacie, Université de Paris-Sud, Châtenay-Malabry, France
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Mycobacterial HBHA induces endoplasmic reticulum stress-mediated apoptosis through the generation of reactive oxygen species and cytosolic Ca2+ in murine macrophage RAW 264.7 cells. Cell Death Dis 2013; 4:e957. [PMID: 24336077 PMCID: PMC3877560 DOI: 10.1038/cddis.2013.489] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 11/05/2013] [Accepted: 11/08/2013] [Indexed: 12/31/2022]
Abstract
Mycobacterial heparin-binding haemagglutinin antigen (HBHA) is a virulence factor that induces apoptosis of macrophages. Endoplasmic reticulum (ER) stress-mediated apoptosis is an important regulatory response that can be utilised to study the pathogenesis of tuberculosis. In the present study, HBHA stimulation induced ER stress sensor molecules in a caspase-dependent manner. Pre-treatment of RAW 264.7 cells with an IκB kinase 2 inhibitor reduced not only C/EBP homology protein expression but also IL-6 and monocyte chemotactic protein-1 (MCP-1) production. BAPTA-AM reduced both ER stress responses and caspase activation and strongly suppressed HBHA-induced IL-6 and MCP-1 production in RAW 264.7 cells. Enhanced reactive oxygen species (ROS) production and elevated cytosolic [Ca(2+)]i levels were essential for HBHA-induced ER stress responses. Collectively, our data suggest that HBHA induces cytosolic [Ca(2+)]i, which influences the generation of ROS associated with the production of proinflammatory cytokines. These concerted and complex cellular responses induce ER stress-associated apoptosis during HBHA stimulation in macrophages. These results indicate that the ER stress pathway has an important role in the HBHA-induced apoptosis during mycobacterial infection.
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Rohban R, Reinisch A, Etchart N, Schallmoser K, Hofmann NA, Szoke K, Brinchmann JE, Rad EB, Rohde E, Strunk D. Identification of an effective early signaling signature during neo-vasculogenesis in vivo by ex vivo proteomic profiling. PLoS One 2013; 8:e66909. [PMID: 23826172 PMCID: PMC3691264 DOI: 10.1371/journal.pone.0066909] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Accepted: 05/11/2013] [Indexed: 12/20/2022] Open
Abstract
Therapeutic neo-vasculogenesis in vivo can be achieved by the co-transplantation of human endothelial colony-forming progenitor cells (ECFCs) with mesenchymal stem/progenitor cells (MSPCs). The underlying mechanism is not completely understood thus hampering the development of novel stem cell therapies. We hypothesized that proteomic profiling could be used to retrieve the in vivo signaling signature during the initial phase of human neo-vasculogenesis. ECFCs and MSPCs were therefore either transplanted alone or co-transplanted subcutaneously into immune deficient mice. Early cell signaling, occurring within the first 24 hours in vivo, was analyzed using antibody microarray proteomic profiling. Vessel formation and persistence were verified in parallel transplants for up to 24 weeks. Proteomic analysis revealed significant alteration of regulatory components including caspases, calcium/calmodulin-dependent protein kinase, DNA protein kinase, human ErbB2 receptor-tyrosine kinase as well as mitogen-activated protein kinases. Caspase-4 was selected from array results as one therapeutic candidate for targeting vascular network formation in vitro as well as modulating therapeutic vasculogenesis in vivo. As a proof-of-principle, caspase-4 and general caspase-blocking led to diminished endothelial network formation in vitro and significantly decreased vasculogenesis in vivo. Proteomic profiling ex vivo thus unraveled a signaling signature which can be used for target selection to modulate neo-vasculogenesis in vivo.
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Affiliation(s)
- Rokhsareh Rohban
- Stem Cell Research Unit, Medical University of Graz, Graz, Austria
| | - Andreas Reinisch
- Stem Cell Research Unit, Medical University of Graz, Graz, Austria
- Division of Hematology and Stem Cell Transplantation, Medical University of Graz, Graz, Austria
| | - Nathalie Etchart
- Stem Cell Research Unit, Medical University of Graz, Graz, Austria
- Division of Hematology and Stem Cell Transplantation, Medical University of Graz, Graz, Austria
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Graz, Graz, Austria
| | - Katharina Schallmoser
- Stem Cell Research Unit, Medical University of Graz, Graz, Austria
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Graz, Graz, Austria
- Department of Blood Group Serology and Transfusion Medicine, Paracelsus Medical University, Salzburg, Austria
| | | | - Krisztina Szoke
- Norwegian Center for Stem Cell Research, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Jan E. Brinchmann
- Norwegian Center for Stem Cell Research, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Ehsan Bonyadi Rad
- Cancer Biology Unit, Department of Dermatology, Medical University of Graz, Graz, Austria
- Department of Pediatric and Adolescence Surgery, Medical University of Graz, Graz, Austria
| | - Eva Rohde
- Department of Blood Group Serology and Transfusion Medicine, Paracelsus Medical University, Salzburg, Austria
| | - Dirk Strunk
- Stem Cell Research Unit, Medical University of Graz, Graz, Austria
- Division of Hematology and Stem Cell Transplantation, Medical University of Graz, Graz, Austria
- Institute of Experimental and Clinical Cell Therapy, Paracelsus Medical University, Salzburg, Austria
- * E-mail:
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Li C, Wei J, Li Y, He X, Zhou Q, Yan J, Zhang J, Liu Y, Liu Y, Shu HB. Transmembrane Protein 214 (TMEM214) mediates endoplasmic reticulum stress-induced caspase 4 enzyme activation and apoptosis. J Biol Chem 2013; 288:17908-17. [PMID: 23661706 PMCID: PMC3682588 DOI: 10.1074/jbc.m113.458836] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 05/01/2013] [Indexed: 11/06/2022] Open
Abstract
Endoplasmic reticulum (ER) stress caused by excessive aggregation of misfolded proteins induces apoptosis. Although ER stress-induced apoptosis has been implicated in many diseases, the detailed mechanisms are not well understood. Here, we identified human transmembrane protein 214 (TMEM214) as a critical mediator of ER stress-induced apoptosis. Overexpression of TMEM214 induced apoptosis, whereas knockdown of TMEM214 inhibited ER stress-induced apoptosis. TMEM214 was localized on the outer membrane of the ER and constitutively associated with procaspase 4, which was also critical for ER stress-induced apoptosis. TMEM214-induced apoptosis was abolished by a dominant negative mutant of procaspase 4, whereas caspase 4-induced apoptosis was inhibited by knockdown of TMEM214. Furthermore, knockdown of TMEM214 inhibited the activation and cleavage of procaspase 4 by impairing its recruitment to the ER. Our findings suggest that TMEM214 is essential for ER stress-induced apoptosis by acting as an anchor for recruitment of procaspase 4 to the ER and its subsequent activation.
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Affiliation(s)
- Chao Li
- From the College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Jin Wei
- From the College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Ying Li
- From the College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Xiao He
- From the College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Qian Zhou
- From the College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Jie Yan
- From the College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Jing Zhang
- From the College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Ying Liu
- From the College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Yu Liu
- From the College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Hong-Bing Shu
- From the College of Life Sciences, Wuhan University, Wuhan 430072, China
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Grimstad Ø, Husebye H, Espevik T. TLR3 mediates release of IL-1β and cell death in keratinocytes in a caspase-4 dependent manner. J Dermatol Sci 2013; 72:45-53. [PMID: 23845419 DOI: 10.1016/j.jdermsci.2013.05.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 05/29/2013] [Accepted: 05/31/2013] [Indexed: 01/24/2023]
Abstract
BACKGROUND Inflammation and timely cell death are important elements in host defence and healing processes. Keratinocytes express high levels of Toll-like receptor 3 (TLR3), and stimulation of the receptor with its ligand polyinosinic-polycytidylic acid (polyI:C) is a powerful signal for release of a variety of proinflammatory cytokines. Caspase-4 is required for maturation of pro-IL-1β through activation of caspase-1 in keratinocytes. METHODS TLR3 in keratinocytes was stimulated with polyI:C. Induction of messenger RNA of pro-IL-1β and inflammasomal components was measured using quantitative polymerase chain reaction methodology. Protein expression of IL-1β was analysed with ELISA and Western blot techniques. Activation of apoptotic caspases was measured with flow cytometry, and cytotoxicity was determined. RESULTS TLR3 induced release of substantial amounts of pro-IL-1β in keratinocytes. NLRP3 or ASC dependent processing of IL-1β into its cleaved bioactive form was found to be minimal. The release of IL-1β was due to polyI:C induced cell death that occurred through a caspase-4 dependent manner. Caspase-1 did not seem to be involved in the polyI:C induced cytotoxicity despite that TLR3 stimulation induced activation of caspase-1. In addition, the apoptotic caspases -8, -9 and -3/7 were activated by polyI:C. CONCLUSION TLR3 stimulation in keratinocytes induces a caspase-4 dependent release of pro-IL-1β, but further processing to active IL-1β is limited. Furthermore, TLR3 stimulation results in pyroptotic- and apoptotic cell death.
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Affiliation(s)
- Øystein Grimstad
- Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway; Department of Dermatology, St. Olavs Hospital HF, Trondheim University Hospital, Trondheim, Norway.
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Venero JL, Burguillos MA, Joseph B. Caspases playing in the field of neuroinflammation: old and new players. Dev Neurosci 2013; 35:88-101. [PMID: 23445938 DOI: 10.1159/000346155] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Accepted: 10/15/2012] [Indexed: 11/19/2022] Open
Abstract
Neuroinflammation is a complex immune response against the harmful effects of diverse stimuli within the central nervous system. Caspases are a family of intracellular cysteine proteases that mediate proteolytic events indispensable for transduction of signaling pathway-controlling biological phenomena such as apoptosis and inflammation. To date, 14 players have been identified in mammals. For many years, caspases were simply divided into 'apoptotic' and 'proinflammatory' caspases and this classification remains useful to some extent. However, increasing evidence indicates that many of these so-called apoptotic caspases also exert nonapoptotic functions. In addition, the role of certain members of the supposed inflammatory caspases in the inflammatory process per se has also been discussed. In this review, we highlight the role for 'apoptotic' and 'proinflammatory' caspases in the regulation of the inflammation response with a special focus on the central nervous system.
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Affiliation(s)
- Jose L Venero
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, and Instituto de Biomedicina de Sevilla (IBiS), Sevilla, Spain
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Bauer RN, Brighton LE, Mueller L, Xiang Z, Rager JE, Fry RC, Peden DB, Jaspers I. Influenza enhances caspase-1 in bronchial epithelial cells from asthmatic volunteers and is associated with pathogenesis. J Allergy Clin Immunol 2012; 130:958-67.e14. [PMID: 23021143 DOI: 10.1016/j.jaci.2012.07.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 06/18/2012] [Accepted: 07/17/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND The leading cause of asthma exacerbation is respiratory viral infection. Innate antiviral defense pathways are altered in the asthmatic epithelium, yet involvement of inflammasome signaling in virus-induced asthma exacerbation is not known. OBJECTIVE This study compared influenza-induced activation of inflammasome and innate immune signaling in human bronchial epithelial cells from volunteers with and without asthma and investigated the role of caspase-1 in epithelial cell antiviral defense. METHODS Differentiated primary human bronchial epithelial cells from volunteers with and without asthma were infected with influenza A virus. An inflammasome-specific quantitative real-time polymerase chain reaction array was used to compare baseline and influenza-induced gene expression profiles. Cytokine secretion, innate immune gene expression, and viral replication were compared between human bronchial epithelial cells from volunteers with and without asthma. Immunofluorescence microscopy was used to evaluate caspase-1 and PYCARD colocalization. Tracheal epithelial cells from caspase-1-deficient or wild-type mice were infected with influenza and assessed for antiviral gene expression and viral replication. RESULTS Human bronchial epithelial cells from asthmatic volunteers had altered influenza-induced expression of inflammasome-related and innate immune signaling components, which correlated with enhanced production of IL-1β, IL-6, and TNF-α. Specifically, influenza-induced caspase-1 expression was enhanced and localization differed in human bronchial epithelial cells from asthmatic volunteers compared to volunteers without asthma. Influenza-infected tracheal epithelial cells from caspase-1-deficient mice had reduced expression of antiviral genes and viral replication. CONCLUSION Caspase-1 plays an important role in the airway epithelial cell response to influenza infection, which is enhanced in asthmatic volunteers, and may contribute to the enhanced influenza-related pathogenesis observed in vivo.
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Affiliation(s)
- Rebecca N Bauer
- Curriculum in Toxicology, Gillings School of Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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46
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Fiandalo M, Kyprianou N. Caspase control: protagonists of cancer cell apoptosis. Exp Oncol 2012; 34:165-175. [PMID: 23070001 PMCID: PMC3721730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Emergence of castration-resistant metastatic prostate cancer is due to activation of survival pathways, including apoptosis suppression and anoikis resistance, and increased neovascularization. Thus targeting of apoptotic players is of critical significance in prostate cancer therapy since loss of apoptosis and resistance to anoikis are critical in aberrant malignant growth, metastasis and conferring therapeutic failure. The majority of therapeutic agents act through intrinsic mitochondrial, extrinsic death receptor pathways or endoplasmic reticulum stress pathways to induce apoptosis. Current therapeutic strategies target restoring regulatory molecules that govern the pro-survival pathways such as PTEN which regulates AKT activity. Other strategies focus on reactivating the apoptotic pathways either by down-regulating anti-apoptotic players such as BCL-2 or by up-regulating pro-apoptotic protein families, most notably, the caspases. Caspases are a family of cystine proteases which serve critical roles in apoptotic and inflammatory signaling pathways. During tumorigenesis, significant loss or inactivation of lead members in the caspase family leads to impairing apoptosis induction, causing a dramatic imbalance in the growth dynamics, ultimately resulting in aberrant growth of human cancers. Recent exploitation of apoptosis pathways towards re-instating apoptosis induction via caspase re-activation has provided new molecular platforms for the development of therapeutic strategies effective against advanced prostate cancer as well as other solid tumors. This review will discuss the current cellular landscape featuring the caspase family in tumor cells and their activation via pharmacologic intervention towards optimized anti-cancer therapeutic modalities. This article is part of a Special Issue entitled "Apoptosis: Four Decades Later".
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47
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Mohammad MK, Avila D, Zhang J, Barve S, Arteel G, McClain C, Joshi-Barve S. Acrolein cytotoxicity in hepatocytes involves endoplasmic reticulum stress, mitochondrial dysfunction and oxidative stress. Toxicol Appl Pharmacol 2012; 265:73-82. [PMID: 23026831 DOI: 10.1016/j.taap.2012.09.021] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 09/18/2012] [Accepted: 09/21/2012] [Indexed: 11/27/2022]
Abstract
Acrolein is a common environmental, food and water pollutant and a major component of cigarette smoke. Also, it is produced endogenously via lipid peroxidation and cellular metabolism of certain amino acids and drugs. Acrolein is cytotoxic to many cell types including hepatocytes; however the mechanisms are not fully understood. We examined the molecular mechanisms underlying acrolein hepatotoxicity in primary human hepatocytes and hepatoma cells. Acrolein, at pathophysiological concentrations, caused a dose-dependent loss of viability of hepatocytes. The death was apoptotic at moderate and necrotic at high concentrations of acrolein. Acrolein exposure rapidly and dramatically decreased intracellular glutathione and overall antioxidant capacity, and activated the stress-signaling MAP-kinases JNK, p42/44 and p38. Our data demonstrate for the first time in human hepatocytes, that acrolein triggered endoplasmic reticulum (ER) stress and activated eIF2α, ATF-3 and -4, and Gadd153/CHOP, resulting in cell death. Notably, the protective/adaptive component of ER stress was not activated, and acrolein failed to up-regulate the protective ER-chaperones, GRP78 and GRP94. Additionally, exposure to acrolein disrupted mitochondrial integrity/function, and led to the release of pro-apoptotic proteins and ATP depletion. Acrolein-induced cell death was attenuated by N-acetyl cysteine, phenyl-butyric acid, and caspase and JNK inhibitors. Our data demonstrate that exposure to acrolein induces a variety of stress responses in hepatocytes, including GSH depletion, oxidative stress, mitochondrial dysfunction and ER stress (without ER-protective responses) which together contribute to acrolein toxicity. Our study defines basic mechanisms underlying liver injury caused by reactive aldehyde pollutants such as acrolein.
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Affiliation(s)
- Mohammad K Mohammad
- Department of Medicine, University of Louisville, USA; Alcohol Research Center, University of Louisville, USA
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Dou G, Sreekumar PG, Spee C, He S, Ryan SJ, Kannan R, Hinton DR. Deficiency of αB crystallin augments ER stress-induced apoptosis by enhancing mitochondrial dysfunction. Free Radic Biol Med 2012; 53:1111-22. [PMID: 22781655 PMCID: PMC3454510 DOI: 10.1016/j.freeradbiomed.2012.06.042] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Revised: 06/12/2012] [Accepted: 06/28/2012] [Indexed: 01/29/2023]
Abstract
Endoplasmic reticulum (ER) stress is linked to several pathological conditions including age-related macular degeneration. Excessive ER stress initiates cell death cascades which are mediated, in part, through mitochondrial dysfunction. Here, we identify αB crystallin as an important regulator of ER stress-induced cell death. Retinal pigment epithelial (RPE) cells from αB crystallin (-/-) mice, and human RPE cells transfected with αB crystallin siRNA, are more vulnerable to ER stress induced by tunicamycin. ER stress-mediated cell death is associated with increased levels of reactive oxygen species, depletion of glutathione in mitochondria, decreased superoxide dismutase activity, increased release of cytochrome c, and activation of caspases 3 and 4. The ER stress signaling inhibitors, salubrinal and 4-(2-aminoethyl) benzenesulfonyl fluoride, decrease mitochondrial damage and reduce RPE apoptosis induced by ER stress. Prolonged ER stress decreases levels of αB crystallin, thus exacerbating mitochondrial dysfunction. Overexpression of αB crystallin protects RPE cells from ER stress-induced apoptosis by attenuating increases in Bax, CHOP, mitochondrial permeability transition, and cleaved caspase 3. Thus, these data collectively demonstrate that αB crystallin provides critical protection of mitochondrial function during ER stress-induced RPE apoptosis.
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Affiliation(s)
- Guorui Dou
- Arnold and Beckman Macular Research Center, Doheny Eye Institute, 1355 San Pablo St, Los Angeles, CA 90033, USA
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Parameswaran G Sreekumar
- Arnold and Beckman Macular Research Center, Doheny Eye Institute, 1355 San Pablo St, Los Angeles, CA 90033, USA
| | - Christine Spee
- Arnold and Beckman Macular Research Center, Doheny Eye Institute, 1355 San Pablo St, Los Angeles, CA 90033, USA
- Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA
| | - Shikun He
- Arnold and Beckman Macular Research Center, Doheny Eye Institute, 1355 San Pablo St, Los Angeles, CA 90033, USA
- Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA
- Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA
| | - Stephen J Ryan
- Arnold and Beckman Macular Research Center, Doheny Eye Institute, 1355 San Pablo St, Los Angeles, CA 90033, USA
- Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA
| | - Ram Kannan
- Arnold and Beckman Macular Research Center, Doheny Eye Institute, 1355 San Pablo St, Los Angeles, CA 90033, USA
- Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA
| | - David R Hinton
- Arnold and Beckman Macular Research Center, Doheny Eye Institute, 1355 San Pablo St, Los Angeles, CA 90033, USA
- Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA
- Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033, USA
- Corresponding Author: David R Hinton MD, Department of Pathology, 2011 Zonal Avenue, HMR 209, Los Angeles, CA 90033, USA. Tel.: + 1 323 442 6617; Fax: + 1 323 442 6688.
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A genome-wide RNA interference screen identifies caspase 4 as a factor required for tumor necrosis factor alpha signaling. Mol Cell Biol 2012; 32:3372-81. [PMID: 22733992 DOI: 10.1128/mcb.06739-11] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Tumor necrosis factor alpha (TNF-α) is a potent inflammatory cytokine secreted upon cellular stress as well as immunological stimuli and is implicated in the pathology of inflammatory diseases and cancer. The therapeutic potential of modifying TNF-α pathway activity has been realized in several diseases, and antagonists of TNF-α have reached clinical applications. While much progress in the understanding of signaling downstream of the TNF-α receptor complex has been made, the compendium of factors required for signal transduction is still not complete. In order to find novel regulators of proinflammatory signaling induced by TNF-α, we conducted a genome-wide small interfering RNA screen in human cells. We identified several new candidate modulators of TNF-α signaling, which were confirmed in independent experiments. Specifically, we show that caspase 4 is required for the induction of NF-κB activity, while it appears to be dispensable for the activation of the Jun N-terminal protein kinase signaling branch. Taken together, our experiments identify caspase 4 as a novel regulator of TNF-α-induced NF-κB signaling that is required for the activation of IκB kinase. We further provide the genome-wide RNA interference data set as a compendium in a format compliant with minimum information about an interfering RNA experiment (MAIRE).
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50
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Hydrogen sulfide (H2S) metabolism in mitochondria and its regulatory role in energy production. Proc Natl Acad Sci U S A 2012; 109:2943-8. [PMID: 22323590 DOI: 10.1073/pnas.1115634109] [Citation(s) in RCA: 334] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Although many types of ancient bacteria and archea rely on hydrogen sulfide (H(2)S) for their energy production, eukaryotes generate ATP in an oxygen-dependent fashion. We hypothesize that endogenous H(2)S remains a regulator of energy production in mammalian cells under stress conditions, which enables the body to cope with energy demand when oxygen supply is insufficient. Cystathionine γ-lyase (CSE) is a major H(2)S-producing enzyme in the cardiovascular system that uses cysteine as the main substrate. Here we show that CSE is localized only in the cytosol, not in mitochondria, of vascular smooth-muscle cells (SMCs) under resting conditions, revealed by Western blot analysis and confocal microscopy of SMCs transfected with GFP-tagged CSE plasmid. After SMCs were exposed to A23187, thapsigargin, or tunicamycin, intracellular calcium level was increased, and CSE translocated from the cytosol to mitochondria. CSE was coimmunoprecipitated with translocase of the outer membrane 20 (Tom20) in mitochondrial membrane. Tom20 siRNA significantly inhibited mitochondrial translocation of CSE and mitochondrial H(2)S production. The cysteine level inside mitochondria is approximately three times that in the cytosol. Translocation of CSE to mitochondria metabolized cysteine, produced H(2)S inside mitochondria, and increased ATP production. Inhibition of CSE activity reversed A23187-stimulated mitochondrial ATP production. H(2)S improved mitochondrial ATP production in SMCs with hypoxia, which alone decreased ATP production. These results suggest that translocation of CSE to mitochondria on specific stress stimulations is a unique mechanism to promote H(2)S production inside mitochondria, which subsequently sustains mitochondrial ATP production under hypoxic conditions.
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