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Corosolic Acid Induces Non-Apoptotic Cell Death through Generation of Lipid Reactive Oxygen Species Production in Human Renal Carcinoma Caki Cells. Int J Mol Sci 2018; 19:ijms19051309. [PMID: 29702597 PMCID: PMC5983573 DOI: 10.3390/ijms19051309] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 04/20/2018] [Accepted: 04/24/2018] [Indexed: 12/24/2022] Open
Abstract
Corosolic acid is one of the pentacyclic triterpenoids isolated from Lagerstroemia speciose and has been reported to exhibit anti-cancer and anti-proliferative activities in various cancer cells. In the present study, we investigated the molecular mechanisms of corosolic acid in cancer cell death. Corosolic acid induces a decrease of cell viability and an increase of cell cytotoxicity in human renal carcinoma Caki cells. Corosolic acid-induced cell death is not inhibited by apoptosis inhibitor (z-VAD-fmk, a pan-caspase inhibitor), necroptosis inhibitor (necrostatin-1), or ferroptosis inhibitors (ferrostatin-1 and deferoxamine (DFO)). Furthermore, corosolic acid significantly induces reactive oxygen species (ROS) levels, but antioxidants (N-acetyl-l-cysteine (NAC) and trolox) do not inhibit corosolic acid-induced cell death. Interestingly, corosolic acid induces lipid oxidation, and α-tocopherol markedly prevents corosolic acid-induced lipid peroxidation and cell death. Anti-chemotherapeutic effects of α-tocopherol are dependent on inhibition of lipid oxidation rather than inhibition of ROS production. In addition, corosolic acid induces non-apoptotic cell death in other renal cancer (ACHN and A498), breast cancer (MDA-MB231), and hepatocellular carcinoma (SK-Hep1 and Huh7) cells, and α-tocopherol markedly inhibits corosolic acid-induced cell death. Therefore, our results suggest that corosolic acid induces non-apoptotic cell death in cancer cells through the increase of lipid peroxidation.
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Zhao L, Lin H, Chen S, Chen S, Cui M, Shi D, Wang B, Ma K, Shao Z. Hydrogen peroxide induces programmed necrosis in rat nucleus pulposus cells through the RIP1/RIP3-PARP-AIF pathway. J Orthop Res 2018; 36:1269-1282. [PMID: 28960436 DOI: 10.1002/jor.23751] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 09/22/2017] [Indexed: 02/04/2023]
Abstract
This study aimed to systematically investigate whether programmed necrosis contributes to H2 O2 -induced nucleus pulposus (NP) cells death and to further explore the underlying mechanism involved. Rat NP cells were subjected to different concentrations of H2 O2 for various time periods. The cell viability was measured using a cell counting kit-8, and the death rate was detected by Hoechst 33258/propidium iodide (PI) staining. The programmed necrosis-related molecules receptor-interacting protein 1 (RIP1), receptor-interacting protein 3 (RIP3), poly (ADP-ribose) polymerase (PARP), and apoptosis inducing factor (AIF) were determined by real-time polymerase chain reaction and Western blotting, respectively. The morphologic and ultrastructural changes were examined by phasecontrast microscopy and transmission electron microscopy (TEM). In addition, the necroptosis inhibitor Necrostatin-1 (Nec-1), the PARP inhibitor diphenyl-benzoquinone (DPQ) and small interfering RNA (siRNA) technology were used to indirectly evaluate programmed necrosis. Our results indicated that H2 O2 induced necrotic morphologic and ultrastructural changes and an elevated PI positive rate in NP cells; these effects were mediated by the upregulation of RIP1 and RIP3, hyperactivation of PARP, and translocation of AIF from mitochondria to nucleus. Additionally, NP cells necrosis was significantly attenuated by Nec-1, DPQ pretreatment and knockdown of RIP3 and AIF, while knockdown of RIP1 produced the opposite effects. In conclusion, these results suggested that under oxidative stress, RIP1/RIP3-mediated programmed necrosis, executed through the PARP-AIF pathway, played an important role in NP cell death. Protective strategies aiming to regulate programmed necrosis may exert a beneficial effect for NP cells survival, and ultimately retard intervertebral disc (IVD) degeneration. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1269-1282, 2018.
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Affiliation(s)
- Lei Zhao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hui Lin
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Songfeng Chen
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Sheng Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Min Cui
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Deyao Shi
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Baichuan Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Kaige Ma
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zengwu Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
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Fricker M, Tolkovsky AM, Borutaite V, Coleman M, Brown GC. Neuronal Cell Death. Physiol Rev 2018; 98:813-880. [PMID: 29488822 PMCID: PMC5966715 DOI: 10.1152/physrev.00011.2017] [Citation(s) in RCA: 668] [Impact Index Per Article: 111.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 05/23/2017] [Accepted: 07/10/2017] [Indexed: 02/07/2023] Open
Abstract
Neuronal cell death occurs extensively during development and pathology, where it is especially important because of the limited capacity of adult neurons to proliferate or be replaced. The concept of cell death used to be simple as there were just two or three types, so we just had to work out which type was involved in our particular pathology and then block it. However, we now know that there are at least a dozen ways for neurons to die, that blocking a particular mechanism of cell death may not prevent the cell from dying, and that non-neuronal cells also contribute to neuronal death. We review here the mechanisms of neuronal death by intrinsic and extrinsic apoptosis, oncosis, necroptosis, parthanatos, ferroptosis, sarmoptosis, autophagic cell death, autosis, autolysis, paraptosis, pyroptosis, phagoptosis, and mitochondrial permeability transition. We next explore the mechanisms of neuronal death during development, and those induced by axotomy, aberrant cell-cycle reentry, glutamate (excitoxicity and oxytosis), loss of connected neurons, aggregated proteins and the unfolded protein response, oxidants, inflammation, and microglia. We then reassess which forms of cell death occur in stroke and Alzheimer's disease, two of the most important pathologies involving neuronal cell death. We also discuss why it has been so difficult to pinpoint the type of neuronal death involved, if and why the mechanism of neuronal death matters, the molecular overlap and interplay between death subroutines, and the therapeutic implications of these multiple overlapping forms of neuronal death.
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Affiliation(s)
- Michael Fricker
- Hunter Medical Research Institute, University of Newcastle, Callaghan, New South Wales , Australia ; Department of Clinical Neurosciences, University of Cambridge , Cambridge , United Kingdom ; Neuroscience Institute, Lithuanian University of Health Sciences , Kaunas , Lithuania ; and Department of Biochemistry, University of Cambridge , Cambridge , United Kingdom
| | - Aviva M Tolkovsky
- Hunter Medical Research Institute, University of Newcastle, Callaghan, New South Wales , Australia ; Department of Clinical Neurosciences, University of Cambridge , Cambridge , United Kingdom ; Neuroscience Institute, Lithuanian University of Health Sciences , Kaunas , Lithuania ; and Department of Biochemistry, University of Cambridge , Cambridge , United Kingdom
| | - Vilmante Borutaite
- Hunter Medical Research Institute, University of Newcastle, Callaghan, New South Wales , Australia ; Department of Clinical Neurosciences, University of Cambridge , Cambridge , United Kingdom ; Neuroscience Institute, Lithuanian University of Health Sciences , Kaunas , Lithuania ; and Department of Biochemistry, University of Cambridge , Cambridge , United Kingdom
| | - Michael Coleman
- Hunter Medical Research Institute, University of Newcastle, Callaghan, New South Wales , Australia ; Department of Clinical Neurosciences, University of Cambridge , Cambridge , United Kingdom ; Neuroscience Institute, Lithuanian University of Health Sciences , Kaunas , Lithuania ; and Department of Biochemistry, University of Cambridge , Cambridge , United Kingdom
| | - Guy C Brown
- Hunter Medical Research Institute, University of Newcastle, Callaghan, New South Wales , Australia ; Department of Clinical Neurosciences, University of Cambridge , Cambridge , United Kingdom ; Neuroscience Institute, Lithuanian University of Health Sciences , Kaunas , Lithuania ; and Department of Biochemistry, University of Cambridge , Cambridge , United Kingdom
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Proteomic Analysis of Thermal Regulation of Small Yellow Follicles in Broiler-Type Taiwan Country Chickens. J Poult Sci 2018; 55:120-136. [PMID: 32055165 PMCID: PMC6756493 DOI: 10.2141/jpsa.0170069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 08/03/2017] [Indexed: 11/21/2022] Open
Abstract
Heat stress hampers egg production and lowers fertility in layers. This study investigated global protein abundance in the small yellow follicles (SYFs, 6–8 mm diameter) of a broiler-type strain of Taiwan country chickens (TCCs) under acute heat stress. Twelve 30-week-old TCC hens were allocated to a control group maintained at 25°C, and to three acute heat-stressed groups subjected to 38°C for 2 h without recovery, with 2-h recovery, or with 6-h recovery. Two-dimensional difference gel electrophoresis analysis identified 119 significantly differentially expressed proteins after acute heat exposure. Gene ontology analysis revealed that most of these proteins are involved in molecular binding (34%), catalytic activity (23%), and structural molecule activity (11%), and participate in metabolic processes (20%), cellular processes (20%), and cellular component organization or biogenesis (11%). Proteins associated with stress response and survival (HSP25, HSP47, HSP70, HSC70, HSPA9), cytoskeleton remodeling, mitochondrial metabolic process of ATP production, antioxidative defense (peroxiredoxin-6), cargo lipid export and delivery (vitellogenin, apolipoprotein B and A1), and toxin/metabolite clearance and delivery (albumin) were upregulated after acute heat stress in the SYFs of TCCs. No overt cell death and atresia were observed in SYFs after acute heat stress. Collectively, these responses may represent a protective mechanism to maintain follicle cell integrity and survival, thereby ensuring a sufficient pool of SYFs for selection into the ovulation hierarchy for successful egg production.
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Macrovipecetin, a C-type lectin from Macrovipera lebetina venom, inhibits proliferation migration and invasion of SK-MEL-28 human melanoma cells and enhances their sensitivity to cisplatin. Biochim Biophys Acta Gen Subj 2017; 1862:600-614. [PMID: 29196192 DOI: 10.1016/j.bbagen.2017.11.019] [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: 07/04/2017] [Revised: 10/05/2017] [Accepted: 11/27/2017] [Indexed: 12/29/2022]
Abstract
BACKGROUND The resistance of melanoma cells to cisplatin restricts its clinical use. Therefore, the search for novel tumor inhibitors and effective combination treatments that sensitize tumor cells to this drug are still needed. We purified macrovipecetin, a novel heterodimeric C-type lectin, from Macrovipera lebetina snake venom and investigated its anti-tumoral effect on its own or combined with cisplatin, in human melanoma cells. METHODS Biochemical characterization, in vitro cells assays such as viability, apoptosis, adhesion, migration, invasion, Western blotting and in silico analysis were used in this study. RESULTS Macrovipecetin decreased melanoma cell viability 100 times more than cisplatin. Interestingly, when combined with the drug, macrovipecetin enhanced the sensitivity of SK-MEL-28 cells by augmenting their apoptosis through increased expression of the apoptosis inducing factor (AIF) and activation of ERK1/2, p38, AKT and NF-κB. Moreover, macrovipecetin alone or combined with cisplatin induced the expression of TRADD, p53, Bax, Bim and Bad and down-regulated the Bcl-2 expression and ROS levels in SK-MEL-28 cells. Interestingly, these treatments impaired SK-MEL-28 cell adhesion, migration and invasion through modulating the function and expression of αvβ3 integrin along with regulating E-cadherin, vimentin, β-catenin, c-Src and RhoA expression. In silico study suggested that only the α chain of macrovipecetin interacts with a region overlapping the RGD motif binding site on this integrin. CONCLUSIONS We validated the antitumor effect of macrovipecetin when combined, or not, with cisplatin on SK-MEL-28 cells. GENERAL SIGNIFICANCE The presented work proposes the potential use of macrovipecetin and cisplatin in combination as an effective anti-melanoma treatment.
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Lüscher B, Bütepage M, Eckei L, Krieg S, Verheugd P, Shilton BH. ADP-Ribosylation, a Multifaceted Posttranslational Modification Involved in the Control of Cell Physiology in Health and Disease. Chem Rev 2017; 118:1092-1136. [PMID: 29172462 DOI: 10.1021/acs.chemrev.7b00122] [Citation(s) in RCA: 171] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Posttranslational modifications (PTMs) regulate protein functions and interactions. ADP-ribosylation is a PTM, in which ADP-ribosyltransferases use nicotinamide adenine dinucleotide (NAD+) to modify target proteins with ADP-ribose. This modification can occur as mono- or poly-ADP-ribosylation. The latter involves the synthesis of long ADP-ribose chains that have specific properties due to the nature of the polymer. ADP-Ribosylation is reversed by hydrolases that cleave the glycosidic bonds either between ADP-ribose units or between the protein proximal ADP-ribose and a given amino acid side chain. Here we discuss the properties of the different enzymes associated with ADP-ribosylation and the consequences of this PTM on substrates. Furthermore, the different domains that interpret either mono- or poly-ADP-ribosylation and the implications for cellular processes are described.
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Affiliation(s)
- Bernhard Lüscher
- Institute of Biochemistry and Molecular Biology, Medical School, RWTH Aachen University , 52057 Aachen, Germany
| | - Mareike Bütepage
- Institute of Biochemistry and Molecular Biology, Medical School, RWTH Aachen University , 52057 Aachen, Germany
| | - Laura Eckei
- Institute of Biochemistry and Molecular Biology, Medical School, RWTH Aachen University , 52057 Aachen, Germany
| | - Sarah Krieg
- Institute of Biochemistry and Molecular Biology, Medical School, RWTH Aachen University , 52057 Aachen, Germany
| | - Patricia Verheugd
- Institute of Biochemistry and Molecular Biology, Medical School, RWTH Aachen University , 52057 Aachen, Germany
| | - Brian H Shilton
- Institute of Biochemistry and Molecular Biology, Medical School, RWTH Aachen University , 52057 Aachen, Germany.,Department of Biochemistry, Schulich School of Medicine & Dentistry, The University of Western Ontario , Medical Sciences Building Room 332, London, Ontario Canada N6A 5C1
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The sirtuin 1/2 inhibitor tenovin-1 induces a nonlinear apoptosis-inducing factor-dependent cell death in a p53 null Ewing’s sarcoma cell line. Invest New Drugs 2017; 36:396-406. [DOI: 10.1007/s10637-017-0541-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 11/10/2017] [Indexed: 01/30/2023]
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Xu P, Liu X, Xiong X, Zhang W, Cai X, Qiu P, Hao M, Wang L, Lu D, Zhang X, Yang W. Flavonoids of Rosa roxburghii Tratt Exhibit Anti-Apoptosis Properties by Regulating PARP-1/AIF. J Cell Biochem 2017; 118:3943-3952. [PMID: 28398610 DOI: 10.1002/jcb.26049] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 04/10/2017] [Indexed: 12/12/2022]
Abstract
Radioprotection is an important approach to reduce the side-effects of radiotherapy. The radioprotective effect of the flavonoids of Rosa roxburghii Tratt (FRT) has been confirmed, and the mechanism has been identified as theBcl-2/caspase-3/PARP-1 signaling pathway. In this study, we investigated the effects of FRT on the intercellular adhesion molecule (ICAM), and vascular cell adhesion protein (VCAM) in addition to apoptosis-related proteins such as Bax/Bcl-2, p-ERK/ERK, p-p53/p53, and p-p38/p38. In the present study, we focused on the effect of FRT on PARP-1/AIF. Ionizing radiation triggered the activation of PARP-1 and AIF translocation from the mitochondrion to the nucleus. The inhibition of PARP-1/AIF signaling pathway by FRT was investigated. Our results showed that the expressions of Bax/Bcl-2, p-ERK/ ERK, p-p53/p53, and p-p38/p38 were decreased after FRT treatment compared with the radiation-treated group. FRT inhibited PARP-1 activation to inhibit AIF translocation from mitochondrion to nucleus. Pretreatment with FRT diminished the comet's tail and reduced fragments in six Gy-irradiated thymocytes compared with the irradiated cells without FRT treatment. We conclude that FRT enhanced radioprotection at least partially by regulating PARP-1/AIF to reduce apoptosis. J. Cell. Biochem. 118: 3943-3952, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Ping Xu
- Departmentof Pharmacy, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Xingxia Liu
- The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Xiwen Xiong
- Department of Forensic Medicine, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Wenbo Zhang
- Synthetic Biology Remaking Engineering and Application Laboratory, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Xinhua Cai
- Departmentof Pharmacy, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Peiyong Qiu
- Departmentof Pharmacy, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Minghua Hao
- Departmentof Pharmacy, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Lijuan Wang
- Departmentof Pharmacy, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Dandan Lu
- Academy of Military Medical Sciences, Institute of Radiation Medicine, Beijing, 100850, China
| | - Xiuhua Zhang
- Synthetic Biology Remaking Engineering and Application Laboratory, Xinxiang Medical University, Xinxiang, Henan, 453003, China
| | - Wancai Yang
- Departmentof Pharmacy, Xinxiang Medical University, Xinxiang, Henan, 453003, China
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The dual role of poly(ADP-ribose) polymerase-1 in modulating parthanatos and autophagy under oxidative stress in rat cochlear marginal cells of the stria vascularis. Redox Biol 2017; 14:361-370. [PMID: 29049980 PMCID: PMC5641921 DOI: 10.1016/j.redox.2017.10.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/01/2017] [Accepted: 10/03/2017] [Indexed: 12/20/2022] Open
Abstract
Oxidative stress is reported to regulate several apoptotic and necrotic cell death pathways in auditory tissues. Poly(ADP-ribose) polymerase-1 (PARP-1) can be activated under oxidative stress, which is the hallmark of parthanatos. Autophagy, which serves either a pro-survival or pro-death function, can also be stimulated by oxidative stress, but the role of autophagy and its relationship with parthanatos underlying this activation in the inner ear remains unknown. In this study, we established an oxidative stress model in vitro by glucose oxidase/glucose (GO/G), which could continuously generate low concentrations of H2O2 to mimic continuous exposure to H2O2 in physiological conditions, for investigation of oxidative stress-induced cell death mechanisms and the regulatory role of PARP-1 in this process. We observed that GO/G induced stria marginal cells (MCs) death via upregulation of PARP-1 expression, accumulation of polyADP-ribose (PAR) polymers, decline of mitochondrial membrane potential (MMP) and nuclear translocation of apoptosis-inducing factor (AIF), which all are biochemical features of parthanatos. PARP-1 knockdown rescued GO/G-induced MCs death, as well as abrogated downstream molecular events of PARP-1 activation. In addition, we demonstrated that GO/G stimulated autophagy and PARP-1 knockdown suppressed GO/G-induced autophagy in MCs. Interestingly, autophagy suppression by 3-Methyladenine (3-MA) accelerated GO/G-induced parthanatos, indicating a pro-survival function of autophagy in GO/G-induced MCs death. Taken together, these data suggested that PARP-1 played dual roles by modulating parthanatos and autophagy in oxidative stress-induced MCs death, which may be considered as a promising therapeutic target for ameliorating oxidative stress-related hearing disorders. The model mimicked continuous exposure to H2O2 in physiological conditions. GO/G induced parthanatos and autophagy in MCs. GO/G-induced parthanatos and autophagy are mediated by PARP-1. Autophagy inhibition by 3-MA sensitizes MCs to GO/G-induced parthanatos. PARP-1 plays a dual role by modulating parthanatos and autophagy under GO/G-induced oxidative stress in MCs.
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Flomm F, Bosse JB. Potential mechanisms facilitating herpesvirus-induced nuclear remodeling: how are herpesvirus capsids able to leave the nucleus? Future Virol 2017. [DOI: 10.2217/fvl-2017-0057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herpesviruses replicate their DNA, assemble and package their capsids in the host nucleus. How capsids transverse the nuclear space to reach nuclear egress sites at the inner nuclear membrane has been a matter of some debate. We recently showed that HSV-1 and pseudorabies virus rely on the large-scale remodeling of host chromatin to allow intranuclear capsids to cross the nucleoplasm by diffusion. Which molecular pathways induce large-scale chromatin remodeling is currently not known. In this perspective, we propose a four-step speculative model that bridges the gap between known virus–host interactions and large-scale chromatin remodeling. We hope that this hypothetical framework will be used as a basis to elucidate how herpesviruses remodel the host nucleus and enable capsids to escape the nucleus.
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Affiliation(s)
- Felix Flomm
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Martinistraße 52, 20251 Hamburg, Germany
| | - Jens Bernhard Bosse
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Martinistraße 52, 20251 Hamburg, Germany
- Institute for Biochemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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Arora D, Sharma PK, Siddiqui MH, Shukla Y. Necroptosis: Modules and molecular switches with therapeutic implications. Biochimie 2017; 137:35-45. [PMID: 28263777 DOI: 10.1016/j.biochi.2017.02.015] [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: 11/05/2016] [Revised: 02/07/2017] [Accepted: 02/27/2017] [Indexed: 12/24/2022]
Abstract
Among the various programmed cell death (PCD) pathways, "Necroptosis" has gained much importance as a novel paradigm of cell death. This pathway has emerged as a backup mechanism when physiologically conserved PCD (apoptosis) is non-functional either genetically or pathogenically. The expanding spectrum of necroptosis from physiological development to diverse patho-physiological disorders, including xenobiotics-mediated toxicity has now grabbed the attention worldwide. The efficient role of necroptosis regulators in disease development and management are under constant examination. In fact, few regulators (e.g. MLKL) have already paved their way towards clinical trials and others are in queue. In this review, emphasis has been paid to the various contributing factors and molecular switches that can regulate necroptosis. Here we linked the overview of current knowledge of this enigmatic signaling with magnitude of therapeutics that may underpin the opportunities for novel therapeutic approaches to suppress the pathogenesis of necroptosis-driven disorders.
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Affiliation(s)
- Deepika Arora
- Environmental Carcinogenesis & Proteomics Laboratory, Food, Drug & Chemical Toxicology Group, VishvigyanBhawan 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India; Department of Bioengineering, Faculty of Engineering, Integral University, Lucknow, 226026, Uttar Pradesh, India
| | - Pradeep Kumar Sharma
- Environmental Carcinogenesis & Proteomics Laboratory, Food, Drug & Chemical Toxicology Group, VishvigyanBhawan 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India
| | - Mohammed Haris Siddiqui
- Department of Bioengineering, Faculty of Engineering, Integral University, Lucknow, 226026, Uttar Pradesh, India
| | - Yogeshwer Shukla
- Environmental Carcinogenesis & Proteomics Laboratory, Food, Drug & Chemical Toxicology Group, VishvigyanBhawan 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India.
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Nakajima H, Itakura M, Kubo T, Kaneshige A, Harada N, Izawa T, Azuma YT, Kuwamura M, Yamaji R, Takeuchi T. Glyceraldehyde-3-phosphate Dehydrogenase (GAPDH) Aggregation Causes Mitochondrial Dysfunction during Oxidative Stress-induced Cell Death. J Biol Chem 2017; 292:4727-4742. [PMID: 28167533 PMCID: PMC5377786 DOI: 10.1074/jbc.m116.759084] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 01/23/2017] [Indexed: 01/24/2023] Open
Abstract
Glycolytic glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a multifunctional protein that also mediates cell death under oxidative stress. We reported previously that the active-site cysteine (Cys-152) of GAPDH plays an essential role in oxidative stress-induced aggregation of GAPDH associated with cell death, and a C152A-GAPDH mutant rescues nitric oxide (NO)-induced cell death by interfering with the aggregation of wild type (WT)-GAPDH. However, the detailed mechanism underlying GAPDH aggregate-induced cell death remains elusive. Here we report that NO-induced GAPDH aggregation specifically causes mitochondrial dysfunction. First, we observed a correlation between NO-induced GAPDH aggregation and mitochondrial dysfunction, when GAPDH aggregation occurred at mitochondria in SH-SY5Y cells. In isolated mitochondria, aggregates of WT-GAPDH directly induced mitochondrial swelling and depolarization, whereas mixtures containing aggregates of C152A-GAPDH reduced mitochondrial dysfunction. Additionally, treatment with cyclosporin A improved WT-GAPDH aggregate-induced swelling and depolarization. In doxycycline-inducible SH-SY5Y cells, overexpression of WT-GAPDH augmented NO-induced mitochondrial dysfunction and increased mitochondrial GAPDH aggregation, whereas induced overexpression of C152A-GAPDH significantly suppressed mitochondrial impairment. Further, NO-induced cytochrome c release into the cytosol and nuclear translocation of apoptosis-inducing factor from mitochondria were both augmented in cells overexpressing WT-GAPDH but ameliorated in C152A-GAPDH-overexpressing cells. Interestingly, GAPDH aggregates induced necrotic cell death via a permeability transition pore (PTP) opening. The expression of either WT- or C152A-GAPDH did not affect other cell death pathways associated with protein aggregation, such as proteasome inhibition, gene expression induced by endoplasmic reticulum stress, or autophagy. Collectively, these results suggest that NO-induced GAPDH aggregation specifically induces mitochondrial dysfunction via PTP opening, leading to cell death.
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Affiliation(s)
| | | | - Takeya Kubo
- From the Laboratory of Veterinary Pharmacology
| | | | | | - Takeshi Izawa
- the Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Science, Osaka Prefecture University, Izumisano, Osaka 5988531, Japan
| | | | - Mitsuru Kuwamura
- the Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Science, Osaka Prefecture University, Izumisano, Osaka 5988531, Japan
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Yang D, Jiang T, Lin P, Chen H, Wang L, Wang N, Zhao F, Wang A, Jin Y. Knock-down of apoptosis inducing factor gene protects endoplasmic reticulum stress-mediated goat granulosa cell apoptosis. Theriogenology 2017; 88:89-97. [DOI: 10.1016/j.theriogenology.2016.10.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 09/25/2016] [Accepted: 10/02/2016] [Indexed: 01/30/2023]
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Cancer's Achilles' Heel: Apoptosis and Necroptosis to the Rescue. Int J Mol Sci 2016; 18:ijms18010023. [PMID: 28025559 PMCID: PMC5297658 DOI: 10.3390/ijms18010023] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 12/05/2016] [Accepted: 12/19/2016] [Indexed: 12/24/2022] Open
Abstract
Apoptosis, and the more recently discovered necroptosis, are two avenues of programmed cell death. Cancer cells survive by evading these two programs, driven by oncogenes and tumor suppressor genes. While traditional therapy using small molecular inhibitors and chemotherapy are continuously being utilized, a new and exciting approach is actively underway by identifying and using synergistic relationship between driver and rescue genes in a cancer cell. Through these synthetic lethal relationships, we are gaining tremendous insights into tumor vulnerabilities and specific molecular avenues for induction of programmed cell death. In this review, we briefly discuss the two cell death processes and cite examples of such synergistic manipulations for therapeutic purposes.
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Chen S, Yan J, Deng HX, Long LL, Hu YJ, Wang M, Shang L, Chen D, Huang JF, Xiong K. Inhibition of calpain on oxygen glucose deprivation-induced RGC-5 necroptosis. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY. MEDICAL SCIENCES = HUA ZHONG KE JI DA XUE XUE BAO. YI XUE YING DE WEN BAN = HUAZHONG KEJI DAXUE XUEBAO. YIXUE YINGDEWEN BAN 2016; 36:639-645. [PMID: 27752886 DOI: 10.1007/s11596-016-1639-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 07/01/2016] [Indexed: 12/21/2022]
Abstract
The purpose of this study was to investigate the effect of inhibition of calpain on retinal ganglion cell-5 (RGC-5) necroptosis following oxygen glucose deprivation (OGD). RGC-5 cells were cultured in Dulbecco's-modified essential medium and necroptosis was induced by 8-h OGD. PI staining and flow cytometry were performed to detect RGC-5 necrosis. The calpain expression was detected by Western blotting and immunofluorescence staining. The calpain activity was tested by activity detection kit. Flow cytometry was used to detect the effect of calpain on RGC-5 necroptosis following OGD with or without N-acetyl-leucyl-leucyl-norleucinal (ALLN) pre-treatment. Western blot was used to detect the protein level of truncated apoptosis inducing factor (tAIF) in RGC-5 cells following OGD. The results showed that there was an up-regulation of the calpain expression and activity following OGD. Upon adding ALLN, the calpain activity was inhibited and tAIF was reduced following OGD along with the decreased number of RGC-5 necroptosis. In conclusion, calpain was involved in OGD-induced RGC-5 necroptosis with the increased expression of its downstream molecule tAIF.
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Affiliation(s)
- Shuang Chen
- Department of Anatomy and Neurobiology, Central South University, Changsha, 410013, China
| | - Jie Yan
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, 410013, China
| | - Hai-Xiao Deng
- Five-year Medicine Program, Grade 2013, Xiangya School of Medicine, Central South University, Changsha, 410013, China
| | - Ling-Ling Long
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, 410013, China
| | - Yong-Jun Hu
- Department of Cardiology, People's Hospital of Hunan Province, Changsha, 410008, China
| | - Mi Wang
- Department of Anatomy and Neurobiology, Central South University, Changsha, 410013, China
| | - Lei Shang
- Jiangxi Research Institute of Ophthalmology and Visual Sciences, Affiliated Eye Hospital of Nanchang University, Nanchang, 330006, China
| | - Dan Chen
- Department of Anatomy and Neurobiology, Central South University, Changsha, 410013, China
| | - Ju-Fang Huang
- Department of Anatomy and Neurobiology, Central South University, Changsha, 410013, China
| | - Kun Xiong
- Department of Anatomy and Neurobiology, Central South University, Changsha, 410013, China.
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Tica Sedlar I, Petricevic J, Saraga-Babic M, Pintaric I, Vukojevic K. Apoptotic pathways and stemness in the colorectal epithelium and lamina propria mucosae during the human embryogenesis and carcinogenesis. Acta Histochem 2016; 118:693-703. [PMID: 27612611 DOI: 10.1016/j.acthis.2016.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/20/2016] [Accepted: 08/23/2016] [Indexed: 12/17/2022]
Abstract
AIM Programmed cell death is essential both during normal organ development and carcinogenesis. In this study we immunohistochemically analyzed different pathways of cell death in 11 human conceptuses 5th-10th-weeks old, 10 low and high grade colorectal carcinomas (CRC), and 10 normal colon samples by using markers for apoptosis (caspase-3, AIF, TUNEL), proliferation (Ki-67) and stemness (Oct-4). RESULTS Between the 5th and 10th week of development, caspase-3 and AIF showed moderate-to-strong expression in the developing gut wall. During development, number of caspase-3-reactive cells decreased, while AIF increased. While healthy colorectal control and low grade CRC showed moderate expression of caspase-3 and AIF, in high grade CRC their expression was strong. Tumor tissues displayed significantly higher number of positive cells than controls. Occasionally, co-expressing of both markers characterized dying cells. In developing colon, Oct-4 and Ki-67 showed moderate-to-strong expression, while some cells co-expressed both markers. Their number decreased in the epithelium and increased in the connective tissue in later development. Healthy colorectal control displayed moderate Ki-67 and mild Oct-4 reactivity. While in low-grade CRC expression Oct-4 and Ki-67 was moderate, in high-grade CRC their expression was strong. Although Oct-4 and TUNEL occasionally co-expressed in all samples, both grades of CRC contained cells that were Oct-4 positive only. CONCLUSION Our study revealed two different parallel pathways of cell death, with characteristic increase of AIF-mediated apoptosis when compared to caspase-3, and presence of stemness cells both during colon development and carcinogenesis. These finding might be considered as important diagnostic, survival and CRC therapy predictors.
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Affiliation(s)
- I Tica Sedlar
- Department of Oncology, University Hospital Mostar, Kralja Tvrtka bb, 88000 Mostar, Bosnia and Herzegovina
| | - J Petricevic
- Department of Pathology, Citology and Forensic Medicine, University Hospital Mostar, Kralja Tvrtka bb, 88000 Mostar, Bosnia and Herzegovina; Department of Pathology, School of Medicine, University of Mostar, Bijeli brijeg bb, 88000 Mostar, Bosnia and Herzegovina
| | - M Saraga-Babic
- Laboratory for Early Human Development, Department of Anatomy, Histology and Embryology, School of Medicine, University of Split, Soltanska 2, 21000 Split, Croatia
| | - I Pintaric
- Laboratory for Early Human Development, Department of Anatomy, Histology and Embryology, School of Medicine, University of Split, Soltanska 2, 21000 Split, Croatia
| | - K Vukojevic
- Laboratory for Early Human Development, Department of Anatomy, Histology and Embryology, School of Medicine, University of Split, Soltanska 2, 21000 Split, Croatia; Department of Histology and Embryology, School of Medicine, University of Mostar, Bijeli brijeg bb, 88000 Mostar, Bosnia and Herzegovina.
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Kim W, Takyar FM, Swan K, Jeong J, VanHouten J, Sullivan C, Dann P, Yu H, Fiaschi-Taesch N, Chang W, Wysolmerski J. Calcium-Sensing Receptor Promotes Breast Cancer by Stimulating Intracrine Actions of Parathyroid Hormone-Related Protein. Cancer Res 2016; 76:5348-60. [PMID: 27450451 DOI: 10.1158/0008-5472.can-15-2614] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 06/17/2016] [Indexed: 12/21/2022]
Abstract
Parathyroid hormone-related protein (PTHrP) contributes to the development and metastatic progression of breast cancer by promoting hypercalcemia, tumor growth, and osteolytic bone metastases, but it is not known how PTHrP is upregulated in breast tumors. Here we report a central role in this process for the calcium-sensing receptor, CaSR, which enables cellular responses to changes in extracellular calcium, through studies of CaSR-PTHrP interactions in the MMTV-PymT transgenic mouse model of breast cancer and in human breast cancer cells. CaSR activation stimulated PTHrP production by breast cancer cells in vitro and in vivo Tissue-specific disruption of the casr gene in mammary epithelial cells in MMTV-PymT mice reduced tumor PTHrP expression and inhibited tumor cell proliferation and tumor outgrowth. CaSR signaling promoted the proliferation of human breast cancer cell lines and tumor cells cultured from MMTV-PyMT mice. Further, CaSR activation inhibited cell death triggered by high extracellular concentrations of calcium. The actions of the CaSR appeared to be mediated by nuclear actions of PTHrP that decreased p27(kip1) levels and prevented nuclear accumulation of the proapoptotic factor apoptosis inducing factor. Taken together, our findings suggest that CaSR-PTHrP interactions might be a promising target for the development of therapeutic agents to limit tumor cell growth in bone metastases and in other microenvironments in which elevated calcium and/or PTHrP levels contribute to breast cancer progression. Cancer Res; 76(18); 5348-60. ©2016 AACR.
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Affiliation(s)
- Wonnam Kim
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven Connecticut
| | - Farzin M Takyar
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven Connecticut
| | - Karena Swan
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven Connecticut
| | - Jaekwang Jeong
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven Connecticut
| | - Joshua VanHouten
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven Connecticut
| | - Catherine Sullivan
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven Connecticut
| | - Pamela Dann
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven Connecticut
| | - Herbert Yu
- Cancer Epidemiology Program, University of Hawaii Cancer Center, University of Hawaii School of Medicine, Honolulu, Hawaii
| | - Nathalie Fiaschi-Taesch
- Section of Endocrinology, Diabetes and Bone Disease, Department of Medicine, Diabetes, Obesity and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Wenhan Chang
- Endocrine Unit, San Francisco and Veteran Affairs Medical Center, University of California, San Francisco, California
| | - John Wysolmerski
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven Connecticut.
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Xu Y, Wang J, Song X, Qu L, Wei R, He F, Wang K, Luo B. RIP3 induces ischemic neuronal DNA degradation and programmed necrosis in rat via AIF. Sci Rep 2016; 6:29362. [PMID: 27377128 PMCID: PMC4932529 DOI: 10.1038/srep29362] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 06/17/2016] [Indexed: 01/05/2023] Open
Abstract
We have reported that nuclear translocation of Receptor-interacting protein 3 (RIP3) involves in neuronal programmed necrosis after 20-min global cerebral ischemia/reperfusion (I/R) injury. Herein, the underlying mechanisms and the nuclear role of RIP3 were investigated further. The necroptosis inhibitor necrostatin-1 (Nec-1), the autophagy inhibitor 3-methyladenine (3-MA), and the caspase-3 inhibitor acetyl-L-aspartyl-L-methionyl-L-glutaminyl-L-aspart-1-al (Ac-DMQD-CHO) were administered intracerebroventricularly 1 h before ischemia. Protein expression, location and interaction was determined by western blot, immunofluorescence or immunoprecipitation. Most CA1 neuronal death induced by 20-min global cerebral I/R injury was TUNEL-positive. Neuronal death and rat mortality rates were greatly inhibited by Nec-1 and 3-MA pre-treatment, but not by Ac-DMQD-CHO. And no activation of caspase-3 was detected after I/R injury. Caspase-8 was expressed richly in GFAP-positive astrocytes and Iba-1-positive microglia, but was not detected in Neun-positive neurons. The nuclear translocation and co-localization of RIP3 and AIF, and their interaction were detected after I/R injury. These processes were inhibited by Nec-1 and 3-MA pre-treatment, but not by Ac-DMQD-CHO. The formation of an RIP3-AIF complex and its nuclear translocation are critical to ischemic neuronal DNA degradation and programmed necrosis. Neurons are more likely to enter the programmed necrosis signal pathway for the loss of caspase-8 suppression.
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Affiliation(s)
- Yang Xu
- Department of Neurology, Brain Medical Centre, First Affiliated Hospital, Zhejiang University School of Medicine, 89 Qingchun Road, Hangzhou 310003, China
| | - Jingye Wang
- Department of Neurology, First Affiliated Hospital, Anhui Medical University, 218 Jixi Road, Hefei 230022, China
| | - Xinghui Song
- Facility for Biochemistry and Molecular medicine Core Facilities, Zhejiang University School of Medicine, 866 Yuhangtang Road, Hangzhou 310058, China
| | - Lindi Qu
- Department of Neurology, First Affiliated Hospital, Anhui Medical University, 218 Jixi Road, Hefei 230022, China
| | - Ruili Wei
- Department of Neurology, Brain Medical Centre, First Affiliated Hospital, Zhejiang University School of Medicine, 89 Qingchun Road, Hangzhou 310003, China
| | - Fangping He
- Department of Neurology, Brain Medical Centre, First Affiliated Hospital, Zhejiang University School of Medicine, 89 Qingchun Road, Hangzhou 310003, China
| | - Kai Wang
- Department of Neurology, First Affiliated Hospital, Anhui Medical University, 218 Jixi Road, Hefei 230022, China
| | - Benyan Luo
- Department of Neurology, Brain Medical Centre, First Affiliated Hospital, Zhejiang University School of Medicine, 89 Qingchun Road, Hangzhou 310003, China
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Das A, McDonald DG, Dixon-Mah YN, Jacqmin DJ, Samant VN, Vandergrift WA, Lindhorst SM, Cachia D, Varma AK, Vanek KN, Banik NL, Jenrette JM, Raizer JJ, Giglio P, Patel SJ. RIP1 and RIP3 complex regulates radiation-induced programmed necrosis in glioblastoma. Tumour Biol 2016; 37:7525-34. [PMID: 26684801 DOI: 10.1007/s13277-015-4621-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 12/10/2015] [Indexed: 01/20/2023] Open
Abstract
Radiation-induced necrosis (RN) is a relatively common side effect of radiation therapy for glioblastoma. However, the molecular mechanisms involved and the ways RN mechanisms differ from regulated cell death (apoptosis) are not well understood. Here, we compare the molecular mechanism of cell death (apoptosis or necrosis) of C6 glioma cells in both in vitro and in vivo (C6 othotopically allograft) models in response to low and high doses of X-ray radiation. Lower radiation doses were used to induce apoptosis, while high-dose levels were chosen to induce radiation necrosis. Our results demonstrate that active caspase-8 in this complex I induces apoptosis in response to low-dose radiation and inhibits necrosis by cleaving RIP1 and RI. When activation of caspase-8 was reduced at high doses of X-ray radiation, the RIP1/RIP3 necrosome complex II is formed. These complexes induce necrosis through the caspase-3-independent pathway mediated by calpain, cathepsin B/D, and apoptosis-inducing factor (AIF). AIF has a dual role in apoptosis and necrosis. At high doses, AIF promotes chromatinolysis and necrosis by interacting with histone H2AX. In addition, NF-κB, STAT-3, and HIF-1 play a crucial role in radiation-induced inflammatory responses embedded in a complex inflammatory network. Analysis of inflammatory markers in matched plasma and cerebrospinal fluid (CSF) isolated from in vivo specimens demonstrated the upregulation of chemokines and cytokines during the necrosis phase. Using RIP1/RIP3 kinase specific inhibitors (Nec-1, GSK'872), we also establish that the RIP1-RIP3 complex regulates programmed necrosis after either high-dose radiation or TNF-α-induced necrosis requires RIP1 and RIP3 kinases. Overall, our data shed new light on the relationship between RIP1/RIP3-mediated programmed necrosis and AIF-mediated caspase-independent programmed necrosis in glioblastoma.
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Affiliation(s)
- Arabinda Das
- Department of Neurosurgery (Divisions of Neuro-oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina, Charleston, SC, 29425, USA.
| | - Daniel G McDonald
- Department of Radiation Oncology, Medical University of South Carolina, Charleston, SC, USA
| | - Yaenette N Dixon-Mah
- Department of Neurosurgery (Divisions of Neuro-oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Dustin J Jacqmin
- Department of Radiation Oncology, Medical University of South Carolina, Charleston, SC, USA
| | - Vikram N Samant
- Department of Neurosurgery (Divisions of Neuro-oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - William A Vandergrift
- Department of Neurosurgery (Divisions of Neuro-oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Scott M Lindhorst
- Department of Neurosurgery (Divisions of Neuro-oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - David Cachia
- Department of Neurosurgery (Divisions of Neuro-oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Abhay K Varma
- Department of Neurosurgery (Divisions of Neuro-oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Kenneth N Vanek
- Department of Radiation Oncology, Medical University of South Carolina, Charleston, SC, USA
| | - Naren L Banik
- Department of Neurosurgery (Divisions of Neuro-oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina, Charleston, SC, 29425, USA
- Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | - Joseph M Jenrette
- Department of Radiation Oncology, Medical University of South Carolina, Charleston, SC, USA
| | - Jeffery J Raizer
- Department of Neurology and Northwestern Brain Tumor Institute, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Pierre Giglio
- Department of Neurosurgery (Divisions of Neuro-oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina, Charleston, SC, 29425, USA
- Department of Neurological Surgery, Ohio State University Wexner Medical College, Columbus, OH, 43210, USA
| | - Sunil J Patel
- Department of Neurosurgery (Divisions of Neuro-oncology) and MUSC Brain and Spine Tumor Program CSB 310, Medical University of South Carolina, Charleston, SC, 29425, USA
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Song Y, Fan Z, Bai X, Liu W, Han Y, Xu L, Wang M, Li J, Zheng Q, Zhang D, Wang H. PARP-1-modulated AIF translocation is involved in streptomycin-induced cochlear hair cell death. Acta Otolaryngol 2016; 136:545-50. [PMID: 26963167 DOI: 10.3109/00016489.2016.1143968] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Conclusion SM-induced dose- and location-dependent cochlear hair cell death in vitro. AIF might be translocated from mitochondria to nucleus and cytoplasm within SM-treated hair cells. The translocation of AIF might be modulated by PARP-1. Objective Streptomycin (SM), one of the widely used aminoglycoside nowadays, is still causing significant permanent sensorineural hearing loss owing to sensory hair cell death. This study was designed to investigate the role of apoptosis-inducing factor (AIF), an important mitochondrial cell death regulator, in SM ototoxicity within neonatal rat cochleae and HEI-OC1 cells. Methods The viability of HEI-OC1 cells was quantified by MTT assay. AIF, PARP-1, and myosin VIIa distributions were achieved by immunofluorescence. mRNA and protein expression of AIF and PARP-1 were examined by q-PCR and Western-blot. Results The hair cell loss was concomitant with the SM concentration variation, and aggravated from apical to basal turn. AIF was detected in nuclear region and AIF mRNA was up-regulated after SM incubation. Besides, AIF protein expression in mitochondria was decreased, whereas in cytosol it was increased. PARP-1 mRNA and protein were also up-regulated. 3-AB could attenuate the cell death and reverse the changes of AIF distribution by blocking PARP-1.
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Affiliation(s)
- Yongdong Song
- Department of Otolaryngology-Head and Neck Surgery, Shangdong Provincial Hospital Affiliated to Shandong University, Jinan, PR China
- Shandong Provincial Key Laboratory of Otology, Jinan, PR China
| | - Zhaomin Fan
- Department of Otolaryngology-Head and Neck Surgery, Shangdong Provincial Hospital Affiliated to Shandong University, Jinan, PR China
| | - Xiaohui Bai
- Shandong Provincial Key Laboratory of Otology, Jinan, PR China
- Institute of Eye and ENT, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, PR China
| | - Wenwen Liu
- Shandong Provincial Key Laboratory of Otology, Jinan, PR China
- Institute of Eye and ENT, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, PR China
| | - Yuechen Han
- Department of Otolaryngology-Head and Neck Surgery, Shangdong Provincial Hospital Affiliated to Shandong University, Jinan, PR China
| | - Lei Xu
- Department of Otolaryngology-Head and Neck Surgery, Shangdong Provincial Hospital Affiliated to Shandong University, Jinan, PR China
| | - Mingming Wang
- Department of Otolaryngology-Head and Neck Surgery, Shangdong Provincial Hospital Affiliated to Shandong University, Jinan, PR China
| | - Jianfeng Li
- Shandong Provincial Key Laboratory of Otology, Jinan, PR China
- Institute of Eye and ENT, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, PR China
| | - Qingyin Zheng
- Department of Otolaryngology-Head and Neck Surgery, Case Western Reserve University, Cleveland, OH, USA
| | - Daogong Zhang
- Department of Otolaryngology-Head and Neck Surgery, Shangdong Provincial Hospital Affiliated to Shandong University, Jinan, PR China
| | - Haibo Wang
- Department of Otolaryngology-Head and Neck Surgery, Shangdong Provincial Hospital Affiliated to Shandong University, Jinan, PR China
- Shandong Provincial Key Laboratory of Otology, Jinan, PR China
- Institute of Eye and ENT, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, PR China
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Blue Light Action on Mitochondria Leads to Cell Death by Necroptosis. Neurochem Res 2016; 41:2324-35. [DOI: 10.1007/s11064-016-1946-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 03/28/2016] [Accepted: 05/03/2016] [Indexed: 10/21/2022]
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Ogura T, Tanaka Y, Tamaki H, Harada M. Docetaxel induces Bcl-2- and pro-apoptotic caspase-independent death of human prostate cancer DU145 cells. Int J Oncol 2016; 48:2330-8. [PMID: 27082738 PMCID: PMC4864052 DOI: 10.3892/ijo.2016.3482] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 03/18/2016] [Indexed: 01/18/2023] Open
Abstract
Docetaxel is a useful chemotherapeutic agent for the first-line treatment of hormone-refractory prostate cancer. Abnormal expression of Bcl-2 is commonly found in cancer cells, which increases their anti-apoptotic potency and chemo-resistance. We investigated the effects of Bcl-2 expression status on the susceptibility of DU145 cells, an androgen-independent human prostate cancer cell line, to docetaxel and other anticancer agents. A panel of Bcl-2-expressing DU145 cell lines was established. Bcl-2 expression levels were unrelated to the susceptibility of DU145 cells to docetaxel. The sensitivity of DU145 cells to cisplatin fluctuated, and the sensitivity to tumor necrosis factor (TNF)-α was decreased by Bcl-2 overexpression. In a xenograft mouse model, overexpression of Bcl-2 drastically decreased the sensitivity of DU145 cells to cisplatin and TNF-α; however, there was no change in the response to docetaxel. Fluorescent microscopy revealed that Bcl-2-overexpression had no effect on the docetaxel-induced death of DU145 cells, but significantly decreased DU145 cell death induced by cisplatin or TNF-α. Interestingly, docetaxel hardly induced caspase-3/7 activation in control or Bcl-2-overexpressing DU145 cells, but did at a low level in LNCaP cells, another prostate cancer cell line. Moreover, in contrast to LNCaP cells, the reduced viabilities of docetaxel-treated control and Bcl-2-overexpressing DU145 cells were not restored by the addition of either a Bid inhibitor or a panel of pro-apoptotic caspase inhibitors. These findings indicate that the antitumor effects of docetaxel on DU145 cells are independent of both Bcl-2 and pro-apoptotic caspases.
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Affiliation(s)
- Takeharu Ogura
- Biological Research Department, Sawai Pharmaceutical Co., Ltd., Osaka, Japan
| | - Yoshiyuki Tanaka
- Biological Research Department, Sawai Pharmaceutical Co., Ltd., Osaka, Japan
| | - Hiroki Tamaki
- Department of Pharmacy, Shimane University Hospital, Shimane, Japan
| | - Mamoru Harada
- Department of Immunology, Shimane University Faculty of Medicine, Shimane, Japan
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Cytoprotective Effects of Oleanolic Acid in Human Umbilical Vascular Endothelial Cells is Mediated Via UCP2/ROS/Cytochrome C/AIF Pathway. J Cardiovasc Pharmacol 2016; 67:344-50. [DOI: 10.1097/fjc.0000000000000360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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74
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Zhao H, Wang C, Lu B, Zhou Z, Jin Y, Wang Z, Zheng L, Liu K, Luo T, Zhu D, Chi G, Luo Y, Ge P. Pristimerin triggers AIF-dependent programmed necrosis in glioma cells via activation of JNK. Cancer Lett 2016; 374:136-148. [PMID: 26854718 DOI: 10.1016/j.canlet.2016.01.055] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 12/25/2015] [Accepted: 01/31/2016] [Indexed: 01/01/2023]
Abstract
Programmed necrosis is established as a new form of programmed cell death and is emerging as a new strategy of treatment for cancers. Pristimerin is a natural chemical with anti-tumor effect despite the fact that its mechanism remains poorly understood. In this study, we used glioma cell lines and mice model of xenograft glioma to investigate the effect of pristimerin on glioma and its underlying mechanism. We found that pristimerin inhibited the viabilities of glioma cells in vitro and the growth of xenograft gliomas in vivo, which was accompanied by upregulation of JNK and phosphor-JNK, nuclear accumulation of AIF, and elevation in the ratio of Bax/Bcl-2. In vitro studies showed that pristimerin induced necrosis in glioma cells, as well as mitochondrial depolarization, overproduction of ROS and reduction of GSH. Ablation of AIF level with SiRNA mitigated pristimerin-induced nuclear accumulation of AIF and prevented necrosis in glioma cells. Moreover, pharmacological inhibition of JNK with SP600125 or knockdown of its level with SiRNA reversed mitochondrial depolarization attenuated the elevation of Bax/Bcl-2 and suppressed nuclear accumulation of AIF. Further, inhibition of ROS with NAC not only rescued glioma cell necrosis but also suppressed JNK activation, mitigated Bax/Bcl-2 ratio, maintained mitochondrial membrane potential, and inhibited AIF translocation into nucleus. Therefore, we demonstrated first in this study that pristimerin triggered AIF-dependent necroptosis in glioma cells via induction of mitochondrial dysfunction by activation of JNK through overproduction of ROS. These results suggest that pristimerin has potential therapeutic effects on glioma.
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Affiliation(s)
- Hongwei Zhao
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, China
| | - Chen Wang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, China
| | - Bin Lu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, China
| | - Zijian Zhou
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, China
| | - Yong Jin
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, China
| | - Zongqi Wang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, China
| | - Linjie Zheng
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, China
| | - Kai Liu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, China
| | - Tianfei Luo
- Research Center of Neuroscience, First Hospital of Jilin University, Changchun 130021, China; Department of Neurology, First Hospital of Jilin University, Changchun 130021, China
| | - Dong Zhu
- Department of Orthopaedics, First Hospital of Jilin University, Changchun 130021, China
| | - Guangfan Chi
- Department of Orthopaedics, First Hospital of Jilin University, Changchun 130021, China; Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, China
| | - Yinan Luo
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, China; Research Center of Neuroscience, First Hospital of Jilin University, Changchun 130021, China
| | - Pengfei Ge
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, China; Research Center of Neuroscience, First Hospital of Jilin University, Changchun 130021, China.
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Hoque A, Hossain MI, Ameen SS, Ang CS, Williamson N, Ng DCH, Chueh AC, Roulston C, Cheng HC. A beacon of hope in stroke therapy-Blockade of pathologically activated cellular events in excitotoxic neuronal death as potential neuroprotective strategies. Pharmacol Ther 2016; 160:159-79. [PMID: 26899498 DOI: 10.1016/j.pharmthera.2016.02.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Excitotoxicity, a pathological process caused by over-stimulation of ionotropic glutamate receptors, is a major cause of neuronal loss in acute and chronic neurological conditions such as ischaemic stroke, Alzheimer's and Huntington's diseases. Effective neuroprotective drugs to reduce excitotoxic neuronal loss in patients suffering from these neurological conditions are urgently needed. One avenue to achieve this goal is to clearly define the intracellular events mediating the neurotoxic signals originating from the over-stimulated glutamate receptors in neurons. In this review, we first focus on the key cellular events directing neuronal death but not involved in normal physiological processes in the neurotoxic signalling pathways. These events, referred to as pathologically activated events, are potential targets for the development of neuroprotectant therapeutics. Inhibitors blocking some of the known pathologically activated cellular events have been proven to be effective in reducing stroke-induced brain damage in animal models. Notable examples are inhibitors suppressing the ion channel activity of neurotoxic glutamate receptors and those disrupting interactions of specific cellular proteins occurring only in neurons undergoing excitotoxic cell death. Among them, Tat-NR2B9c and memantine are clinically effective in reducing brain damage caused by some acute and chronic neurological conditions. Our second focus is evaluation of the suitability of the other inhibitors for use as neuroprotective therapeutics. We also discuss the experimental approaches suitable for bridging our knowledge gap in our current understanding of the excitotoxic signalling mechanism in neurons and discovery of new pathologically activated cellular events as potential targets for neuroprotection.
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Affiliation(s)
- Ashfaqul Hoque
- Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - M Iqbal Hossain
- Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - S Sadia Ameen
- Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Ching-Seng Ang
- Bio21 Institute, University of Melbourne, Parkville, VIC 3010, Australia
| | | | - Dominic C H Ng
- Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, VIC 3010, Australia; School of Biomedical Science, University of Queensland, St. Lucia, QLD, Australia
| | - Anderly C Chueh
- ACRF Chemical Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3052, Australia
| | - Carli Roulston
- Department of Medicine, St. Vincent's Hospital, University of Melbourne, Fitzroy, VIC 3065, Australia
| | - Heung-Chin Cheng
- Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, VIC 3010, Australia.
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Riahi-Chebbi I, Haoues M, Essafi M, Zakraoui O, Fattouch S, Karoui H, Essafi-Benkhadir K. Quince peel polyphenolic extract blocks human colon adenocarcinoma LS174 cell growth and potentiates 5-fluorouracil efficacy. Cancer Cell Int 2016; 16:1. [PMID: 26839513 PMCID: PMC4736700 DOI: 10.1186/s12935-016-0276-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Accepted: 01/26/2016] [Indexed: 01/01/2023] Open
Abstract
Background Development of alternative cancer-specific drugs would be of paramount importance to overcome toxicity toward normal tissues and tumor resistance. Here, we investigated the potential anti-tumoral effect of peel (Peph) and pulp polyphenolic extracts from the Tunisian quince Cydonia oblonga Miller on both no-tumorigenic cells NIH 3T3 Fibroblasts and HEK 293 cells and human colon adenocarcinoma LS174 cells. Methods Cell proliferation and cytotoxicity were measured with MTT and LDH assays respectively. Cell cycle distribution and the apoptosis levels were assessed by flow cytometry. Intracellular reactive oxygen species (ROS) levels were determined using the fluorescent probe CM-H2DCFDA. Western blot was used to further characterize cell death and analyze the signaling pathways affected by Peph treatment. The expression level of VEGF-A was evaluated by real time quantitative PCR and further verified by quantifying the secreted cytokines by enzyme-linked immunosorbent assay. Results We found that Peph extract displayed the highest anti-proliferative effect specifically on LS174 cells. However, each Peph phenolic compound alone did not exhibit any anti-proliferative activity, suggesting a synergistic effect of phenolic molecules. Such effect was associated with a cell cycle arrest in the G1/S phase, a caspase-independent apoptosis and an increase of the ROS production. Peph extract inhibited the pro-survival signaling pathway NFκB and suppressed the expression of various cellular markers known to be involved in cell cycling (cyclin D1) and angiogenesis (Vascular Endothelial Growth Factor, VEGF). Interestingly, the combination Peph extract and 5-FU exerted synergistic inhibitory effect on cell viability. Conclusion These data propose the quince Peph extract as a promising cost effective non toxic drug to employ alone or in combination with conventional anti-colorectal cancer. Moreover, quince rich regimen may prevent the development and the progress of colon cancer. Electronic supplementary material The online version of this article (doi:10.1186/s12935-016-0276-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ichrak Riahi-Chebbi
- Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée Aux Maladies Infectieuses (LR11IPT04), Institut Pasteur de Tunis, 13 Place Pasteur, BP 74, 1002 Tunis-Belvédère, Tunisia ; Université de Tunis El Manar, 1068 Tunis, Tunisia
| | - Meriam Haoues
- Laboratoire de Recherche sur la Transmission, le Contrôle et l'Immunobiologie des Infections (LR11IPT02), Institut Pasteur de Tunis, 1002 Tunis, Tunisia ; Université de Tunis El Manar, 1068 Tunis, Tunisia
| | - Makram Essafi
- Laboratoire de Recherche sur la Transmission, le Contrôle et l'Immunobiologie des Infections (LR11IPT02), Institut Pasteur de Tunis, 1002 Tunis, Tunisia ; Université de Tunis El Manar, 1068 Tunis, Tunisia
| | - Ons Zakraoui
- Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée Aux Maladies Infectieuses (LR11IPT04), Institut Pasteur de Tunis, 13 Place Pasteur, BP 74, 1002 Tunis-Belvédère, Tunisia ; Université de Tunis El Manar, 1068 Tunis, Tunisia
| | - Sami Fattouch
- Institut National des Sciences Appliquées et de Technologie (INSAT), Université de Carthage, Tunis, Tunisia
| | - Habib Karoui
- Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée Aux Maladies Infectieuses (LR11IPT04), Institut Pasteur de Tunis, 13 Place Pasteur, BP 74, 1002 Tunis-Belvédère, Tunisia ; Université de Tunis El Manar, 1068 Tunis, Tunisia
| | - Khadija Essafi-Benkhadir
- Laboratoire d'Epidémiologie Moléculaire et de Pathologie Expérimentale Appliquée Aux Maladies Infectieuses (LR11IPT04), Institut Pasteur de Tunis, 13 Place Pasteur, BP 74, 1002 Tunis-Belvédère, Tunisia ; Université de Tunis El Manar, 1068 Tunis, Tunisia
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Nassour J, Martien S, Martin N, Deruy E, Tomellini E, Malaquin N, Bouali F, Sabatier L, Wernert N, Pinte S, Gilson E, Pourtier A, Pluquet O, Abbadie C. Defective DNA single-strand break repair is responsible for senescence and neoplastic escape of epithelial cells. Nat Commun 2016; 7:10399. [PMID: 26822533 PMCID: PMC4740115 DOI: 10.1038/ncomms10399] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 12/08/2015] [Indexed: 12/22/2022] Open
Abstract
The main characteristic of senescence is its stability which relies on the persistence of DNA damage. We show that unlike fibroblasts, senescent epithelial cells do not activate an ATM-or ATR-dependent DNA damage response (DDR), but accumulate oxidative-stress-induced DNA single-strand breaks (SSBs). These breaks remain unrepaired because of a decrease in PARP1 expression and activity. This leads to the formation of abnormally large and persistent XRCC1 foci that engage a signalling cascade involving the p38MAPK and leading to p16 upregulation and cell cycle arrest. Importantly, the default in SSB repair also leads to the emergence of post-senescent transformed and mutated precancerous cells. In human-aged skin, XRCC1 foci accumulate in the epidermal cells in correlation with a decline of PARP1, whereas DDR foci accumulate mainly in dermal fibroblasts. These findings point SSBs as a DNA damage encountered by epithelial cells with aging which could fuel the very first steps of carcinogenesis.
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Affiliation(s)
- Joe Nassour
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161 - M3T - Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France
| | - Sébastien Martien
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161 - M3T - Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France
| | - Nathalie Martin
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161 - M3T - Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France
| | - Emeric Deruy
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161 - M3T - Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France
| | - Elisa Tomellini
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161 - M3T - Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France
| | - Nicolas Malaquin
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161 - M3T - Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France
| | - Fatima Bouali
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161 - M3T - Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France
| | - Laure Sabatier
- Commissariat à l'Energie Atomique (CEA), Laboratoire de Radiobiologie et Oncologie (LRO), 18 route du Panorama - BP6, 92265 Fontenay-aux-Roses 53011, France
| | - Nicolas Wernert
- Institute of Pathology, University of Bonn, 53011 Bonn, Germany
| | - Sébastien Pinte
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161 - M3T - Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France.,Institute for Research on Cancer and Aging, Nice (IRCAN), University of Nice Sophia Antipolis, CNRS, UMR7284, INSERM U108, Faculty of Medecine of Nice; CHU of Nice, Nice, France
| | - Eric Gilson
- Institute for Research on Cancer and Aging, Nice (IRCAN), University of Nice Sophia Antipolis, CNRS, UMR7284, INSERM U108, Faculty of Medecine of Nice; CHU of Nice, Nice, France
| | - Albin Pourtier
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161 - M3T - Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France
| | - Olivier Pluquet
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161 - M3T - Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France
| | - Corinne Abbadie
- Univ. Lille, CNRS, Institut Pasteur de Lille, UMR 8161 - M3T - Mechanisms of Tumorigenesis and Targeted Therapies, F-59000 Lille, France
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Tower J. Programmed cell death in aging. Ageing Res Rev 2015; 23:90-100. [PMID: 25862945 DOI: 10.1016/j.arr.2015.04.002] [Citation(s) in RCA: 247] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 03/15/2015] [Accepted: 04/01/2015] [Indexed: 02/08/2023]
Abstract
Programmed cell death (PCD) pathways, including apoptosis and regulated necrosis, are required for normal cell turnover and tissue homeostasis. Mis-regulation of PCD is increasingly implicated in aging and aging-related disease. During aging the cell turnover rate declines for several highly-mitotic tissues. Aging-associated disruptions in systemic and inter-cell signaling combined with cell-autonomous damage and mitochondrial malfunction result in increased PCD in some cell types, and decreased PCD in other cell types. Increased PCD during aging is implicated in immune system decline, skeletal muscle wasting (sarcopenia), loss of cells in the heart, and neurodegenerative disease. In contrast, cancer cells and senescent cells are resistant to PCD, enabling them to increase in abundance during aging. PCD pathways limit life span in fungi, but whether PCD pathways normally limit adult metazoan life span is not yet clear. PCD is regulated by a balance of negative and positive factors, including the mitochondria, which are particularly subject to aging-associated malfunction.
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Morgan MJ, Liu ZG. Programmed cell death with a necrotic-like phenotype. Biomol Concepts 2015; 4:259-75. [PMID: 25436579 DOI: 10.1515/bmc-2012-0056] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 02/27/2013] [Indexed: 12/19/2022] Open
Abstract
Programmed cell death is the process by which an individual cell in a multicellular organism commits cellular 'suicide' to provide a long-term benefit to the organism. Thus, programmed cell death is important for physiological processes such as development, cellular homeostasis, and immunity. Importantly, in this process, the cell is not eliminated in response to random events but in response to an intricate and genetically defined set of internal cellular molecular events or 'program'. Although the apoptotic process is generally very well understood, programmed cell death that occurs with a necrotic-like phenotype has been much less studied, and it is only within the past few years that the necrotic program has begun to be elucidated. Originally, programmed necrosis was somewhat dismissed as a nonphysiological phenomenon that occurs in vitro. Recent in vivo studies, however, suggest that regulated necrosis is an authentic classification of cell death that is important in mammalian development and other physiological processes, and programmed necrosis is now considered a significant therapeutic target in major pathological processes as well. Although the RIP1-RIP3-dependent necrosome complex is recognized as being essential for the execution of many instances of programmed necrosis, other downstream and related necrotic molecules and pathways are now being characterized. One of the current challenges is understanding how and under what conditions these pathways are linked together.
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Nisin ZP, a Bacteriocin and Food Preservative, Inhibits Head and Neck Cancer Tumorigenesis and Prolongs Survival. PLoS One 2015; 10:e0131008. [PMID: 26132406 PMCID: PMC4489501 DOI: 10.1371/journal.pone.0131008] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 05/26/2015] [Indexed: 01/14/2023] Open
Abstract
The use of small antimicrobial peptides or bacteriocins, like nisin, to treat cancer is a new approach that holds great promise. Nisin exemplifies this new approach because it has been used safely in humans for many years as a food preservative, and recent laboratory studies support its anti-tumor potential in head and neck cancer. Previously, we showed that nisin (2.5%, low content) has antitumor potential in head and neck squamous cell carcinoma (HNSCC) in vitro and in vivo. The current studies explored a naturally occurring variant of nisin (nisin ZP; 95%, high content) for its antitumor effects in vitro and in vivo. Nisin ZP induced the greatest level of apoptosis in HNSCC cells compared to low content nisin. HNSCC cells treated with increasing concentrations of nisin ZP exhibited increasing levels of apoptosis and decreasing levels of cell proliferation, clonogenic capacity, and sphere formation. Nisin ZP induced apoptosis through a calpain-dependent pathway in HNSCC cells but not in human oral keratinocytes. Nisin ZP also induced apoptosis dose-dependently in human umbilical vein endothelial cells (HUVEC) with concomitant decreases in vascular sprout formation in vitro and reduced intratumoral microvessel density in vivo. Nisin ZP reduced tumorigenesis in vivo and long-term treatment with nisin ZP extended survival. In addition, nisin treated mice exhibited normal organ histology with no evidence of inflammation, fibrosis or necrosis. In summary, nisin ZP exhibits greater antitumor effects than low content nisin, and thus has the potential to serve as a novel therapeutic for HNSCC.
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81
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Kondrikov D, Fulton D, Dong Z, Su Y. Heat Shock Protein 70 Prevents Hyperoxia-Induced Disruption of Lung Endothelial Barrier via Caspase-Dependent and AIF-Dependent Pathways. PLoS One 2015; 10:e0129343. [PMID: 26066050 PMCID: PMC4465980 DOI: 10.1371/journal.pone.0129343] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 05/07/2015] [Indexed: 12/03/2022] Open
Abstract
Exposure of pulmonary artery endothelial cells (PAECs) to hyperoxia results in a compromise in endothelial monolayer integrity, an increase in caspase-3 activity, and nuclear translocation of apoptosis-inducing factor (AIF), a marker of caspase-independent apoptosis. In an endeavor to identify proteins involved in hyperoxic endothelial injury, we found that the protein expression of heat-shock protein 70 (Hsp70) was increased in hyperoxic PAECs. The hyperoxia-induced Hsp70 protein expression is from hspA1B gene. Neither inhibition nor overexpression of Hsp70 affected the first phase barrier disruption of endothelial monolayer. Nevertheless, inhibition of Hsp70 by using the Hsp70 inhibitor KNK437 or knock down Hsp70 using siRNA exaggerated and overexpression of Hsp70 prevented the second phase disruption of lung endothelial integrity. Moreover, inhibition of Hsp70 exacerbated and overexpression of Hsp70 prevented hyperoxia-induced apoptosis, caspase-3 activation, and increase in nuclear AIF protein level in PAECs. Furthermore, we found that Hsp70 interacted with AIF in the cytosol in hyperoxic PAECs. Inhibition of Hsp70/AIF association by KNK437 correlated with increased nuclear AIF level and apoptosis in KNK437-treated PAECs. Finally, the ROS scavenger NAC prevented the hyperoxia-induced increase in Hsp70 expression and reduced the interaction of Hsp70 with AIF in hyperoxic PAECs. Together, these data indicate that increased expression of Hsp70 plays a protective role against hyperoxia-induced lung endothelial barrier disruption through caspase-dependent and AIF-dependent apoptotic pathways. Association of Hsp70 with AIF prevents AIF nuclear translocation, contributing to the protective effect of Hsp70 on hyperoxia-induced endothelial apoptosis. The hyperoxia-induced increase in Hsp70 expression and Hsp70/AIF interaction is contributed to ROS formation.
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Affiliation(s)
- Dmitry Kondrikov
- Department of Pharmacology & Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, United States of America
| | - David Fulton
- Department of Pharmacology & Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, United States of America
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, United States of America
| | - Zheng Dong
- Department of Cell Biology and Anatomy, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, United States of America
- Research Service, Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia 30912, United States of America
| | - Yunchao Su
- Department of Pharmacology & Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, United States of America
- Department of Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, United States of America
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, United States of America
- Research Service, Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia 30912, United States of America
- * E-mail:
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82
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Zong L, Guan J, Ealy M, Zhang Q, Wang D, Wang H, Zhao Y, Shen Z, Campbell CA, Wang F, Yang J, Sun W, Lan L, Ding D, Xie L, Qi Y, Lou X, Huang X, Shi Q, Chang S, Xiong W, Yin Z, Yu N, Zhao H, Wang J, Wang J, Salvi RJ, Petit C, Smith RJH, Wang Q. Mutations in apoptosis-inducing factor cause X-linked recessive auditory neuropathy spectrum disorder. J Med Genet 2015; 52:523-31. [PMID: 25986071 PMCID: PMC4518735 DOI: 10.1136/jmedgenet-2014-102961] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 04/21/2015] [Indexed: 01/09/2023]
Abstract
Background Auditory neuropathy spectrum disorder (ANSD) is a form of hearing loss in which auditory signal transmission from the inner ear to the auditory nerve and brain stem is distorted, giving rise to speech perception difficulties beyond that expected for the observed degree of hearing loss. For many cases of ANSD, the underlying molecular pathology and the site of lesion remain unclear. The X-linked form of the condition, AUNX1, has been mapped to Xq23-q27.3, although the causative gene has yet to be identified. Methods We performed whole-exome sequencing on DNA samples from the AUNX1 family and another small phenotypically similar but unrelated ANSD family. Results We identified two missense mutations in AIFM1 in these families: c.1352G>A (p.R451Q) in the AUNX1 family and c.1030C>T (p.L344F) in the second ANSD family. Mutation screening in a large cohort of 3 additional unrelated families and 93 sporadic cases with ANSD identified 9 more missense mutations in AIFM1. Bioinformatics analysis and expression studies support this gene as being causative of ANSD. Conclusions Variants in AIFM1 gene are a common cause of familial and sporadic ANSD and provide insight into the expanded spectrum of AIFM1-associated diseases. The finding of cochlear nerve hypoplasia in some patients was AIFM1-related ANSD implies that MRI may be of value in localising the site of lesion and suggests that cochlea implantation in these patients may have limited success.
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Affiliation(s)
- Liang Zong
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Jing Guan
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Megan Ealy
- Molecular Otolaryngology and Renal Research Laboratories and the Department of Otolaryngology-Head and Neck Surgery, University of Iowa, Iowa City, Iowa, USA Department of Otolaryngology-Head & Neck Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Qiujing Zhang
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Dayong Wang
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Hongyang Wang
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Yali Zhao
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China Beijing Institute of Otorhinolaryngology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Zhirong Shen
- National Institute of Biological Sciences, Beijing, China
| | - Colleen A Campbell
- Molecular Otolaryngology and Renal Research Laboratories and the Department of Otolaryngology-Head and Neck Surgery, University of Iowa, Iowa City, Iowa, USA
| | - Fengchao Wang
- National Institute of Biological Sciences, Beijing, China
| | - Ju Yang
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Wei Sun
- Department of Communicative Disorders & Sciences, Center for Hearing and Deafness, University at Buffalo, Buffalo, New York, USA
| | - Lan Lan
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Dalian Ding
- Department of Communicative Disorders & Sciences, Center for Hearing and Deafness, University at Buffalo, Buffalo, New York, USA
| | - Linyi Xie
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Yue Qi
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Xin Lou
- Department of Radiology, PLA General Hospital, Beijing, China
| | - Xusheng Huang
- Department of Neurology, PLA General Hospital, Beijing, China
| | - Qiang Shi
- Department of Neurology, PLA General Hospital, Beijing, China
| | - Suhua Chang
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Wenping Xiong
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Zifang Yin
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Ning Yu
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | - Hui Zhao
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
| | | | - Jing Wang
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Richard J Salvi
- Department of Communicative Disorders & Sciences, Center for Hearing and Deafness, University at Buffalo, Buffalo, New York, USA
| | - Christine Petit
- Unité de Génétique et Physiologie de l'Audition, Institut Pasteur, Collège de France, Paris, France
| | - Richard J H Smith
- Molecular Otolaryngology and Renal Research Laboratories and the Department of Otolaryngology-Head and Neck Surgery, University of Iowa, Iowa City, Iowa, USA
| | - Qiuju Wang
- Department of Otolaryngology-Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing, China
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Abstract
Human cells respond to DNA damage with an acute and transient burst in production of poly(ADP-ribose), a posttranslational modification that expedites damage repair and plays a pivotal role in cell fate decisions. Poly(ADP-ribose) polymerases (PARPs) and glycohydrolase (PARG) are the key set of enzymes that orchestrate the rise and fall in cellular levels of poly(ADP-ribose). In this perspective, we focus on recent structural and mechanistic insights into the enzymes involved in poly(ADP-ribose) production and turnover, and we highlight important questions that remain to be answered.
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Wu X, Deng G, Li M, Li Y, Ma C, Wang Y, Liu X. Wnt/β-catenin signaling reduces Bacillus Calmette-Guerin-induced macrophage necrosis through a ROS -mediated PARP/AIF-dependent pathway. BMC Immunol 2015; 16:16. [PMID: 25887795 PMCID: PMC4394565 DOI: 10.1186/s12865-015-0080-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 02/25/2015] [Indexed: 01/12/2023] Open
Abstract
Background Necrosis of alveolar macrophages following Mycobacterium tuberculosis infection has been demonstrated to play a vital role in the pathogenesis of tuberculosis. Our previous study demonstrated that Wnt/β-catenin signaling was able to promote mycobacteria-infected cell apoptosis by a caspase-dependent pathway. However, the functionality of this signaling in the necrosis of macrophage following mycobacterial infection remains largely unknown. Methods Murine macrophage RAW264.7 cells were infected with Bacillus Calmette-Guerin (BCG) in the presence of Wnt/β-catenin signaling. The necrotic cell death was determined by cytometric assay and electronic microscopy; the productions of reactive oxygen species (ROS) and reduced glutathione (GSH) were measured by a cytometric analysis and an enzyme-linked immunosorbent assay, respectively; and the activity of poly (ADP-ribose) polymerase 1 (PARP-1)/apoptosis inhibition factor (AIF) signaling was examined by an immunoblotting assay. Results The BCG can induce RAW264.7 macrophage cells necrosis in a dose- and time-dependent manner along with an accumulation of reactive oxygen species (ROS). Intriguingly, an enhancement of Wnt/β-catenin signaling shows an ability to reduce the mycobacteria-induced macrophage necrosis. Mechanistically, the activation of Wnt/β-catenin signaling is capable of inhibiting the necrotic cell death in BCG-infected RAW264.7 cells through a mechanism by which the Wnt signaling scavenges intracellular ROS accumulation and increases cellular GSH concentration. In addition, immunoblotting analysis further reveals that Wnt/β-catenin signaling is capable of inhibiting the ROS-mediated cell necrosis in part through a PARP-1/AIF- dependent pathway. Conclusions An activation of Wnt/β-catenin signaling can inhibit BCG-induced macrophage necrosis by increasing the production of GSH and scavenging ROS in part through a mechanism of repression of PARP-1/AIF signaling pathway. This finding may thus provide an insight into the underlying mechanism of alveolar macrophage cell death in response to mycobacterial infection.
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Affiliation(s)
- Xiaoling Wu
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western China, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China. .,College of Life Science, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China.
| | - Guangcun Deng
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western China, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China. .,College of Life Science, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China.
| | - Min Li
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western China, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China. .,College of Life Science, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China.
| | - Yong Li
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western China, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China. .,College of Life Science, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China.
| | - Chunyan Ma
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western China, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China. .,College of Life Science, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China.
| | - Yujiong Wang
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western China, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China. .,College of Life Science, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China.
| | - Xiaoming Liu
- Key Laboratory of Ministry of Education for Conservation and Utilization of Special Biological Resources in the Western China, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China. .,College of Life Science, Ningxia University, 539 W Helanshan Road, Xixia District, Yinchuan, Ningxia, 750021, China. .,Ningxia key laboratory of clinical and pathogenic microbiology, the General Hospital of Ningxia Medical University, 804 S. Shengli Street, Yinchuan, Ningxia, 750004, China.
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85
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Bollino D, Balan I, Aurelian L. Valproic acid induces neuronal cell death through a novel calpain-dependent necroptosis pathway. J Neurochem 2015; 133:174-86. [PMID: 25581256 DOI: 10.1111/jnc.13029] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 12/24/2014] [Accepted: 01/05/2015] [Indexed: 02/06/2023]
Abstract
A growing body of evidence indicates that valproic acid (VPA), a histone deacetylase inhibitor used to treat epilepsy and mood disorders, has histone deacetylase-related and -unrelated neurotoxic activity, the mechanism of which is still poorly understood. We report that VPA induces neuronal cell death through an atypical calpain-dependent necroptosis pathway that initiates with downstream activation of c-Jun N-terminal kinase 1 (JNK1) and increased expression of receptor-interacting protein 1 (RIP-1) and is accompanied by cleavage and mitochondrial release/nuclear translocation of apoptosis-inducing factor, mitochondrial release of Smac/DIABLO, and inhibition of the anti-apoptotic protein X-linked inhibitor of apoptosis (XIAP). Coinciding with apoptosis-inducing factor nuclear translocation, VPA induces phosphorylation of the necroptosis-associated histone H2A family member H2AX, which is known to contribute to lethal DNA degradation. These signals are inhibited in neuronal cells that express constitutively activated MEK/ERK and/or PI3-K/Akt survival pathways, allowing them to resist VPA-induced cell death. The data indicate that VPA has neurotoxic activity and identify a novel calpain-dependent necroptosis pathway that includes JNK1 activation and RIP-1 expression. A growing body of evidence indicates that valproic acid (VPA) has neurotoxic activity, the mechanism of which is still poorly understood. We report, for the first time, that VPA activates a previously unrecognized calpain-dependent necroptosis cascade that initiates with JNK1 activation and involves AIF cleavage/nuclear translocation and H2AX phosphorylation as well as an altered Smac/DIABLO to XIAP balance.
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Affiliation(s)
- Dominique Bollino
- Department of Pharmacology, University of Maryland, Baltimore, Maryland, USA
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86
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Zheng CY, Lam SK, Li YY, Ho JCM. Arsenic trioxide-induced cytotoxicity in small cell lung cancer via altered redox homeostasis and mitochondrial integrity. Int J Oncol 2015; 46:1067-78. [PMID: 25572414 DOI: 10.3892/ijo.2015.2826] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Accepted: 11/04/2014] [Indexed: 11/06/2022] Open
Abstract
Arsenic trioxide (ATO) has demonstrated anticancer activity in different malignancies, especially acute promyelocytic leukemia, with a wide array of putative mechanisms. In this study, we aimed to elucidate the activity and mechanisms of ATO in small cell lung cancer (SCLC). A panel of SCLC cell lines (H841, DMS79, H526, H69 and H187) was employed to demonstrate the activity of ATO. Cell viability, apoptosis and mitochondrial membrane depolarization were assessed. Western blotting was performed to determine the alteration of pro-apoptotic and anti-apoptotic mediators. Reactive oxygen species (ROS) (hydrogen peroxide and superoxide) and intracellular glutathione (GSH) were measured. Antioxidants, N-acetyl-L-cysteine (NAC) and butylated hydroxyanisole (BHA), were applied to restore GSH content and reduce production of ROS. All SCLC cell lines were relatively sensitive to ATO with IC50 values below 10 µM. ATO induced cell death mainly through apoptosis in H841 cells in a dose-dependent manner. Hydrogen peroxide was the major ROS in SCLC cells induced by ATO. Along with GSH depletion and Bcl-2 downregulation, mitochondrial membrane permeabilization was enhanced, followed by release of AIF and SMAC from mitochondria to initiate different cell death pathways. NAC reversed cell death and molecular changes induced by ATO via restoring GSH and reducing ROS content. BHA inhibited hydrogen peroxide production completely and partially restored GSH content accounting for partial reversal of cell inhibition and mitochondrial dysfunction. Nonetheless, ATO reduced both reduced and oxidized form of thioredoxin 1 (Trx1) with no effect on Trx1 redox potential. ATO led to cell death in SCLC mainly through mitochondrial dysfunction, resulting from altered cellular redox homeostasis, namely, hydrogen peroxide generation, GSH depletion and Trx1 downregulation.
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Affiliation(s)
- Chun-Yan Zheng
- Division of Respiratory Medicine, Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, SAR, P.R. China
| | - Sze-Kwan Lam
- Division of Respiratory Medicine, Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, SAR, P.R. China
| | - Yuan-Yuan Li
- Division of Respiratory Medicine, Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, SAR, P.R. China
| | - James Chung-Man Ho
- Division of Respiratory Medicine, Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, SAR, P.R. China
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87
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Kondrikov D, Gross C, Black SM, Su Y. Novel peptide for attenuation of hyperoxia-induced disruption of lung endothelial barrier and pulmonary edema via modulating peroxynitrite formation. J Biol Chem 2014; 289:33355-63. [PMID: 25315770 DOI: 10.1074/jbc.m114.585356] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Pulmonary damages of oxygen toxicity include vascular leakage and pulmonary edema. We have previously reported that hyperoxia increases the formation of NO and peroxynitrite in lung endothelial cells via increased interaction of endothelial nitric oxide (eNOS) with β-actin. A peptide (P326TAT) with amino acid sequence corresponding to the actin binding region of eNOS residues 326-333 has been shown to reduce the hyperoxia-induced formation of NO and peroxynitrite in lung endothelial cells. In the present study, we found that exposure of pulmonary artery endothelial cells to hyperoxia (95% oxygen and 5% CO2) for 48 h resulted in disruption of monolayer barrier integrity in two phases, and apoptosis occurred in the second phase. NOS inhibitor N(G)-nitro-L-arginine methyl ester attenuated the endothelial barrier disruption in both phases. Peroxynitrite scavenger uric acid did not affect the first phase but ameliorated the second phase of endothelial barrier disruption and apoptosis. P326TAT inhibited hyperoxia-induced disruption of monolayer barrier integrity in two phases and apoptosis in the second phase. More importantly, injection of P326TAT attenuated vascular leakage, pulmonary edema, and endothelial apoptosis in the lungs of mice exposed to hyperoxia. P326TAT also significantly reduced the increase in eNOS-β-actin association and protein tyrosine nitration. Together, these results indicate that peptide P326TAT ameliorates barrier dysfunction of hyperoxic lung endothelial monolayer and attenuates eNOS-β-actin association, peroxynitrite formation, endothelial apoptosis, and pulmonary edema in lungs of hyperoxic mice. P326TAT can be a novel therapeutic agent to treat or prevent acute lung injury in oxygen toxicity.
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Affiliation(s)
| | | | | | - Yunchao Su
- From the the Departments of Pharmacology and Toxicology and Vascular Biology Center, and Medicine, Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Georgia Regents University, Augusta, Georgia 30912
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88
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Zhang Z, Liang X, Gao L, Ma H, Liu X, Pan Y, Yan W, Shan H, Wang Z, Chen YH, Ma C. TIPE1 induces apoptosis by negatively regulating Rac1 activation in hepatocellular carcinoma cells. Oncogene 2014; 34:2566-74. [PMID: 25043299 DOI: 10.1038/onc.2014.208] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 04/29/2014] [Accepted: 05/21/2014] [Indexed: 12/29/2022]
Abstract
TIPE1 (tumor necrosis factor-α-induced protein 8-like 1 or TNFAIP8L1) is a newly identified member of the TIPE (TNFAIP8) family, which play roles in regulating cell death. However, the biologic functions of TIPE1 in physiologic and pathologic conditions are largely unknown. Here, we report the roles of TIPE1 in hepatocellular carcinoma (HCC). Evaluated by immunohistochemical staining, HCC tissues showed significantly downregulated TIPE1 expression compared with adjacent non-tumor tissues, which positively correlated with tumor pathologic grades and patient survival. Using a homograft tumor model in Balb/c mice, we discovered that TIPE1 significantly diminished the growth and tumor weight of murine liver cancer homografts. Consistently, TIPE1 inhibited both cell growth and colony formation ability of cultured HCC cell lines, which was further identified to be due to TIPE1-inducing apoptosis in a caspase-independent, necrostatin-1 (Nec-1)-insensitive manner. Furthermore, mechanistic investigations revealed that TIPE1 interacted with Rac1, and inhibited the activation of Rac1 and its downstream p65 and c-Jun N-terminal kinase pathway. Moreover, overexpression of constitutively active Rac1 partially rescued the apoptosis induced by TIPE1, and Rac1 knockdown significantly restored the deregulated cell growth induced by TIPE1 small interfering RNA. Our findings revealed that TIPE1 induced apoptosis in HCC cells by negatively regulating Rac1 pathway, and loss of TIPE1 might be a new prognostic indicator for HCC patients.
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Affiliation(s)
- Z Zhang
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Shandong, People's Republic of China
| | - X Liang
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Shandong, People's Republic of China
| | - L Gao
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Shandong, People's Republic of China
| | - H Ma
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Shandong, People's Republic of China
| | - X Liu
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Shandong, People's Republic of China
| | - Y Pan
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Shandong, People's Republic of China
| | - W Yan
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Shandong, People's Republic of China
| | - H Shan
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Shandong, People's Republic of China
| | - Z Wang
- Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Y H Chen
- Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - C Ma
- Key Laboratory for Experimental Teratology of Ministry of Education and Department of Immunology, Shandong University School of Medicine, Shandong, People's Republic of China
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89
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Chen C, Hyun TK, Han X, Feng Z, Li Y, Liu X, Liu J. Coexpression within Integrated Mitochondrial Pathways Reveals Different Networks in Normal and Chemically Treated Transcriptomes. Int J Genomics 2014; 2014:452891. [PMID: 25089262 PMCID: PMC4095669 DOI: 10.1155/2014/452891] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Revised: 04/13/2014] [Accepted: 05/05/2014] [Indexed: 12/12/2022] Open
Abstract
As energy producers, mitochondria play a pivotal role in multiple cellular processes. Although several lines of evidence suggest that differential expression of mitochondrial respiratory complexes (MRCs) has a significant impact on mitochondrial function, the role of integrated MRCs in the whole coexpression network has yet to be revealed. In this study, we construct coexpression networks based on microarray datasets from different tissues and chemical treatments to explore the role of integrated MRCs in the coexpression network and the effects of different chemicals on the mitochondrial network. By grouping MRCs as one seed target, the hypergeometric distribution allowed us to identify genes that are significantly coexpress with whole MRCs. Coexpression among 46 MRC genes (approximately 78% of MRC genes tested) was significant in the normal tissue transcriptome dataset. These MRC genes are coexpressed with genes involved in the categories "muscle system process," "metabolic process," and "neurodegenerative disease pathways," whereas, in the chemically treated tissues, coexpression of these genes mostly disappeared. These results indicate that chemical stimuli alter the normal coexpression network of MRC genes. Taken together, the datasets obtained from the different coexpression networks are informative about mitochondrial biogenesis and should contribute to understanding the side effects of drugs on mitochondrial function.
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Affiliation(s)
- Cong Chen
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Tae Kyung Hyun
- Division of Applied Life Science (Brain Korea 21-World Class University Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Xiao Han
- Division of Applied Life Science (Brain Korea 21-World Class University Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Zhihui Feng
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yuan Li
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiaolong Liu
- The Liver Center of Fujian Province, Fujian Medical University, Fuzhou 350025, China
| | - Jiankang Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
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90
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Xu S, Yang Y, Han S, Wu Z. ZIP1 and zinc inhibits fluoride-induced apoptosis in MC3T3-E1 cells. Biol Trace Elem Res 2014; 159:399-409. [PMID: 24752969 DOI: 10.1007/s12011-014-9935-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 03/04/2014] [Indexed: 12/01/2022]
Abstract
Excess fluoride intake could induce apoptosis in the cells. As an essential micronutrient and cytoprotectant, zinc is involved in many types of apoptosis. Here, we studied the effects of zinc and ZIP1 on fluoride-induced apoptosis in mouse MC3T3-E1 cells and examined the underlying molecular mechanisms. Our study found that fluoride not only inhibited cell proliferation and increased the intracellular reactive oxygen species (ROS) but also induced cell apoptosis. Whereas pretreatment with zinc significantly attenuated fluoride-induced ROS production and partly protected cells against fluoride-induced apoptosis through MAPK/ERK signaling pathway. Our study also found that fluoride upregulated the expression of ZIP1 in a time-dependent manner. Moreover, overexpression of ZIP1 also inhibited fluoride-induced apoptosis by activation of PI3K/Akt pathway. This cytoprotective effect of zinc and ZIP1 may be new factors that affect the physiological activity of fluoride and need study further.
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Affiliation(s)
- Shihong Xu
- Department of Orthopaedics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, People's Republic of China
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91
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Alam S, Bowser BS, Israr M, Conway MJ, Meyers C. Adeno-associated virus type 2 infection of nude mouse human breast cancer xenograft induces necrotic death and inhibits tumor growth. Cancer Biol Ther 2014; 15:1013-28. [PMID: 24834917 DOI: 10.4161/cbt.29172] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
We have previously reported that infection with the non-pathogenic, tumor suppressive, wild-type adeno-associated virus type 2 (AAV2) inhibited proliferation of breast cancer-derived lines representing both weakly invasive (MCF-7 and MDA-MB-468), as well as aggressive (MDA-MB-231) cancer types. AAV2-induced death occurred via targeting pathways of apoptosis and necrosis. In contrast, normal human mammary epithelial cells were unaffected upon AAV2 infection. The current study characterizes AAV2 infection and subsequent death of the highly aggressive, triple-negative (ER(-)/PR(-)/HER2(-)) MDA-MB-435 cell line derived from metastatic human breast carcinoma. Monolayer MDA-MB-435 cultures infected with AAV2 underwent complete apoptotic cell death characterized by activation of caspases -7, -8, and -9 and PARP cleavage. Death was further correlated with active AAV2 genome replication and differential expression of viral non-structural proteins Rep78 and Rep52. Cell death coincided with increased entry into S and G 2 phases, upregulated expression of the proliferation markers Ki-67 and the monomeric form of c-Myc. Expression of the p16(INK4), p27(KIP1), p21(WAF1), and p53 tumor suppressors was downregulated, indicating marked S phase progression, but sharply contrasted with hypo-phosphorylated pRb. In parallel, MDA-MB-435 breast tumor xenografts which received intratumoral injections of AAV2 were growth retarded, displayed extensive areas of necrosis, and stained positively for c-Myc as well as cleaved caspase-8. Therefore, AAV2 induced death of MDA-MB-435 xenografts was modulated through activation of caspase-regulated death pathways in relation to signals for cell cycle controls. Our findings provide foundational studies for development of novel AAV2 based therapeutics for treating aggressive, triple-negative breast cancer types.
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Affiliation(s)
- Samina Alam
- Department of Microbiology and Immunology; The Pennsylvania State University College of Medicine; Hershey, PA USA
| | - Brian S Bowser
- Department of Microbiology and Immunology; The Pennsylvania State University College of Medicine; Hershey, PA USA
| | - Mohd Israr
- Department of Microbiology and Immunology; The Pennsylvania State University College of Medicine; Hershey, PA USA
| | - Michael J Conway
- Department of Microbiology and Immunology; The Pennsylvania State University College of Medicine; Hershey, PA USA
| | - Craig Meyers
- Department of Microbiology and Immunology; The Pennsylvania State University College of Medicine; Hershey, PA USA
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92
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Park EJ, Min KJ, Lee TJ, Yoo YH, Kim YS, Kwon TK. β-Lapachone induces programmed necrosis through the RIP1-PARP-AIF-dependent pathway in human hepatocellular carcinoma SK-Hep1 cells. Cell Death Dis 2014; 5:e1230. [PMID: 24832602 PMCID: PMC4047891 DOI: 10.1038/cddis.2014.202] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 04/01/2014] [Accepted: 04/08/2014] [Indexed: 12/13/2022]
Abstract
β-Lapachone activates multiple cell death mechanisms including apoptosis, autophagy and necrotic cell death in cancer cells. In this study, we investigated β-lapachone-induced cell death and the underlying mechanisms in human hepatocellular carcinoma SK-Hep1 cells. β-Lapachone markedly induced cell death without caspase activation. β-Lapachone increased PI uptake and HMGB-1 release to extracellular space, which are markers of necrotic cell death. Necrostatin-1 (a RIP1 kinase inhibitor) markedly inhibited β-lapachone-induced cell death and HMGB-1 release. In addition, β-lapachone activated poly (ADP-ribosyl) polymerase-1(PARP-1) and promoted AIF release, and DPQ (a PARP-1 specific inhibitor) or AIF siRNA blocked β-lapachone-induced cell death. Furthermore, necrostatin-1 blocked PARP-1 activation and cytosolic AIF translocation. We also found that β-lapachone-induced reactive oxygen species (ROS) production has an important role in the activation of the RIP1-PARP1-AIF pathway. Finally, β-lapachone-induced cell death was inhibited by dicoumarol (a NQO-1 inhibitor), and NQO1 expression was correlated with sensitivity to β-lapachone. Taken together, our results demonstrate that β-lapachone induces programmed necrosis through the NQO1-dependent ROS-mediated RIP1-PARP1-AIF pathway.
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Affiliation(s)
- E J Park
- Department of Immunology, School of Medicine, Keimyung University, Daegu, Korea
| | - K-j Min
- Department of Immunology, School of Medicine, Keimyung University, Daegu, Korea
| | - T-J Lee
- Department of Anatomy, College of Medicine, Yeungnam University, Daegu, Korea
| | - Y H Yoo
- Department of Anatomy and Cell Biology and Mitochondria Hub Regulation Center, Dong-A University College of Medicine, Busan, Korea
| | - Y-S Kim
- Department of Biochemistry, Ajou University School of Medicine, San 5, Wonchon-dong, Yeongtong-gu, Suwon, Korea
| | - T K Kwon
- Department of Immunology, School of Medicine, Keimyung University, Daegu, Korea
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93
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Jantas D, Greda A, Golda S, Korostynski M, Grygier B, Roman A, Pilc A, Lason W. Neuroprotective effects of metabotropic glutamate receptor group II and III activators against MPP(+)-induced cell death in human neuroblastoma SH-SY5Y cells: the impact of cell differentiation state. Neuropharmacology 2014; 83:36-53. [PMID: 24713472 DOI: 10.1016/j.neuropharm.2014.03.019] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 02/25/2014] [Accepted: 03/31/2014] [Indexed: 12/31/2022]
Abstract
Recent studies have documented that metabotropic glutamate receptors from group II and III (mGluR II/III) are a potential target in the symptomatic treatment of Parkinson's disease (PD), however, the neuroprotective effects of particular mGluR II/III subtypes in relation to PD pathology are recognized only partially. In the present study, we investigated the effect of various mGluR II/III activators in the in vitro model of PD using human neuroblastoma SH-SY5Y cell line and mitochondrial neurotoxin MPP(+). We demonstrated that all tested mGluR ligands: mGluR II agonist - LY354740, mGluR III agonist - ACPT-I, mGluR4 PAM - VU0361737, mGluR8 agonist - (S)-3,4-DCPG, mGluR8 PAM - AZ12216052 and mGluR7 allosteric agonist - AMN082 were protective against MPP(+)-evoked cell damage in undifferentiated (UN-) SH-SY5Y cells with the highest neuroprotection mediated by mGluR8-specific agents. However, in retinoic acid- differentiated (RA-) SH-SY5Y cells we found protection mediated only by mGluR8 activators. We also demonstrated the cell proliferation stimulating effect for mGluR4 and mGluR8 PAMs. Next, we showed that the protection mediated by mGluR II/III activators in UN-SH-SY5Y was not accompanied by the modulation of caspase-3 activity, however, a decrease in the number of apoptotic nuclei was found. Finally, we showed that the inhibitor of necroptosis, necrostatin-1 blocked the mGluR III-mediated protection. Altogether our comparative in vitro data add a further proof to neuroprotective effects of mGluR agonists or PAMs and point to mGluR8 as a promising target for neuroprotective interventions in PD. The results also suggest the participation of necroptosis-related molecular pathways in neuroprotective effects of mGluR III activation.
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Affiliation(s)
- D Jantas
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Smetna 12 Street, PL 31-343 Krakow, Poland.
| | - A Greda
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Smetna 12 Street, PL 31-343 Krakow, Poland
| | - S Golda
- Department of Molecular Neuropharmacology, Institute of Pharmacology, Polish Academy of Sciences, Smetna 12 Street, PL 31-343 Krakow, Poland
| | - M Korostynski
- Department of Molecular Neuropharmacology, Institute of Pharmacology, Polish Academy of Sciences, Smetna 12 Street, PL 31-343 Krakow, Poland
| | - B Grygier
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Smetna 12 Street, PL 31-343 Krakow, Poland
| | - A Roman
- Department of Brain Biochemistry, Institute of Pharmacology, Polish Academy of Sciences, Smetna 12 Street, PL 31-343 Krakow, Poland
| | - A Pilc
- Department of Neurobiology, Institute of Pharmacology, Polish Academy of Sciences, Smetna 12 Street, PL 31-343 Krakow, Poland
| | - W Lason
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Sciences, Smetna 12 Street, PL 31-343 Krakow, Poland
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Leprêtre C, Tchakarska G, Blibech H, Lebon C, Torriglia A. Apoptosis-inducing factor (AIF) and leukocyte elastase inhibitor/L-DNase II (LEI/LDNaseII), can interact to conduct caspase-independent cell death. Apoptosis 2014; 18:1048-59. [PMID: 23673989 DOI: 10.1007/s10495-013-0862-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Programmed cell death is an important factor in tissue homeostasis. Lot of work has been performed to characterize the caspase-dependent cell death. Caspase-independent cell death, although important in many physiological situations, is less investigated. In this work we show that two caspase-independent effectors of cell death, namely apoptosis-inducing factor and leukocyte elastase inhibitor derived DNase II interact and can cooperate to induce cell death. These results contribute to the knowledge of molecular pathways of cell death, an important issue in the development of new therapeutic strategies for the treatment of cancer or neurodegenerative diseases.
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Affiliation(s)
- Chloé Leprêtre
- Centre de Recherches des Cordeliers, INSERM, UMR S 872, 15, rue de L'école de médecine, 75006, Paris, France
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95
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Zhou H, Xu M, Gao Y, Deng Z, Cao H, Zhang W, Wang Q, Zhang B, Song G, Zhan Y, Hu T. Matrine induces caspase-independent program cell death in hepatocellular carcinoma through bid-mediated nuclear translocation of apoptosis inducing factor. Mol Cancer 2014; 13:59. [PMID: 24628719 PMCID: PMC4007561 DOI: 10.1186/1476-4598-13-59] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 03/10/2014] [Indexed: 12/14/2022] Open
Abstract
Matrine, a clinical drug in China, has been used to treat viral hepatitis, cardiac arrhythmia and skin inflammations. Matrine also exhibits chemotherapeutic potential through its ability to trigger cancer cell death. However, the mechanisms involved are still largely unknown. The objective of this study was to investigate the major determinant for the cell death induced by matrine in human hepatocellular carcinoma. We use human hepatocellular carcinoma cell line HepG2 and human hepatocellular carcinoma xenograft in nude mice as models to study the action of matrine in hepatocellular cancers. We found that caspase-dependent and -independent Program Cell Death (PCD) occurred in matrine-treated HepG2 cells, accompanied by the decreasing of mitochondrial transmembrane potential and the increasing ROS production. Further studies showed that AIF released from the mitochondria to the nucleus, and silencing of AIF reduced the caspase-independent PCD induced by matrine. What’s more, AIF nuclear translocation, and the subsequent cell death as well, was prevented by Bid inhibitor BI-6C9, Bid-targeted siRNA and ROS scavenger Tiron. In the in vivo study, matrine significantly attenuated tumor growth with AIF release from mitochondria into nucleus in nude mice. These data imply that matrine potently induce caspase-independent PCD in HepG2 cells through Bid-mediated AIF translocation.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Gang Song
- Cancer Research Center, Xiamen University Medical college, Xiamen 361102, China.
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96
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Kuang C, Golden KL, Simon CR, Damrath J, Buttitta L, Gamble CE, Lee CY. A novel fizzy/Cdc20-dependent mechanism suppresses necrosis in neural stem cells. Development 2014; 141:1453-64. [PMID: 24598157 DOI: 10.1242/dev.104786] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Cancer stem cells likely survive chemotherapy or radiotherapy by acquiring mutations that inactivate the endogenous apoptotic machinery or by cycling slowly. Thus, knowledge about the mechanisms linking the activation of an alternative cell death modality and the cell cycle machinery could have a transformative impact on the development of new cancer therapies, but the mechanisms remain completely unknown. We investigated the regulation of alternative cell death in Drosophila larval brain neural stem cells (neuroblasts) in which apoptosis is normally repressed. From a screen, we identified two novel loss-of-function alleles of the Cdc20/fizzy (fzy) gene that lead to premature brain neuroblast loss without perturbing cell proliferation in other diploid cell types. Fzy is an evolutionarily conserved regulator of anaphase promoting complex/cyclosome (APC/C). Neuroblasts carrying the novel fzy allele or exhibiting reduced APC/C function display hallmarks of necrosis. By contrast, neuroblasts overexpressing the non-degradable form of canonical APC/C substrates required for cell cycle progression undergo mitotic catastrophe. These data strongly suggest that Fzy can elicit a novel pro-survival function of APC/C by suppressing necrosis. Neuroblasts experiencing catastrophic cellular stress, or overexpressing p53, lose Fzy expression and undergo necrosis. Co-expression of fzy suppresses the death of these neuroblasts. Consequently, attenuation of the Fzy-dependent survival mechanism functions downstream of catastrophic cellular stress and p53 to eliminate neuroblasts by necrosis. Strategies that target the Fzy-dependent survival mechanism might lead to the discovery of new treatments or complement the pre-existing therapies to eliminate apoptosis-resistant cancer stem cells by necrosis.
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Affiliation(s)
- Chaoyuan Kuang
- Program in Cellular and Molecular Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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97
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Jin ML, Park SY, Kim YH, Oh JI, Lee SJ, Park G. The neuroprotective effects of cordycepin inhibit glutamate-induced oxidative and ER stress-associated apoptosis in hippocampal HT22 cells. Neurotoxicology 2014; 41:102-11. [PMID: 24486958 DOI: 10.1016/j.neuro.2014.01.005] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 01/21/2014] [Accepted: 01/21/2014] [Indexed: 01/01/2023]
Abstract
Glutamate toxicity increases the formation of reactive oxygen species (ROS) and intracellular calcium levels, resulting in neuronal dysfunction, neurodegenerative disorders, and death. Cordycepin is a derivative of the nucleoside adenosine, and is believed to exert neuroprotective effects against glutamate-induced oxidative toxicity in HT22 neuronal cells. Excessive glutamate induces oxidative and endoplasmic reticulum (ER) stress, gradually increasing ER-related pro-apoptotic transcription factor C/EBP homologous protein (CHOP) expression, and eventually up-regulating expression of the pro-apoptotic factor Bax. Cordycepin inhibits CHOP and Bax expressions, as well as p-ERK, p-JNK, and p-p38, all of which are involved in oxidative or ER stress-induced apoptosis. In addition, the increased production of ROS from excessive glutamate leads to elevation of mitochondrial membrane potential (MMP), a hallmark of mitochondrial dysfunction. Cordycepin retains MMP and reduces the elevated levels of ROS and Ca(2+) induced by glutamate. Caspases are crucial mediators involved in mitochondrial apoptosis, and while glutamate disrupts mitochondrial function, it does not change expression levels of caspase 3 and caspase 9. Similarly, cordycepin has no effect on caspase 3 and caspase 9 expressions; however, it decreases the expression of ER stress-specific caspase 12, which plays a key role in the initiation of ER stress-induced apoptosis. Finally, we found that the anti-apoptotic effects of cordycepin are partially dependent on activation of the adenosine A1 receptor, whereas an antagonist selectively attenuated the neuroprotective effects of cordycepin. Collectively, these results suggest that cordycepin could be a potential future therapeutic agent for neuronal disorders.
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Affiliation(s)
- Mei Ling Jin
- Department of Microbiology, Pusan National University, Busan, Republic of Korea
| | - Sun Young Park
- Bio-IT Fusion Technology Research Institute, Pusan National University, Busan, Republic of Korea
| | - Young Hun Kim
- Bio-IT Fusion Technology Research Institute, Pusan National University, Busan, Republic of Korea
| | - Jeong-Il Oh
- Department of Microbiology, Pusan National University, Busan, Republic of Korea
| | - Sang Joon Lee
- Department of Microbiology, Pusan National University, Busan, Republic of Korea
| | - Geuntae Park
- Bio-IT Fusion Technology Research Institute, Pusan National University, Busan, Republic of Korea; Institute for Research & Industry Cooperation, Pusan National University, Busan, Republic of Korea.
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98
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Coffin AB, Williamson KL, Mamiya A, Raible DW, Rubel EW. Profiling drug-induced cell death pathways in the zebrafish lateral line. Apoptosis 2014; 18:393-408. [PMID: 23413197 DOI: 10.1007/s10495-013-0816-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Programmed cell death (PCD) is an important process in development and disease, as it allows the body to rid itself of unwanted or damaged cells. However, PCD pathways can also be activated in otherwise healthy cells. One such case occurs in sensory hair cells of the inner ear following exposure to ototoxic drugs, resulting in hearing loss and/or balance disorders. The intracellular pathways that determine if hair cells die or survive following this or other ototoxic challenges are incompletely understood. We use the larval zebrafish lateral line, an external hair cell-bearing sensory system, as a platform for profiling cell death pathways activated in response to ototoxic stimuli. In this report the importance of each pathway was assessed by screening a custom cell death inhibitor library for instances when pathway inhibition protected hair cells from the aminoglycosides neomycin or gentamicin, or the chemotherapy agent cisplatin. This screen revealed that each ototoxin likely activated a distinct subset of possible cell death pathways. For example, the proteasome inhibitor Z-LLF-CHO protected hair cells from either aminoglycoside or from cisplatin, while D-methionine, an antioxidant, protected hair cells from gentamicin or cisplatin but not from neomycin toxicity. The calpain inhibitor leupeptin primarily protected hair cells from neomycin, as did a Bax channel blocker. Neither caspase inhibition nor protein synthesis inhibition altered the progression of hair cell death. Taken together, these results suggest that ototoxin-treated hair cells die via multiple processes that form an interactive network of cell death signaling cascades.
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Affiliation(s)
- Allison B Coffin
- Virginia Merrill Bloedel Hearing Research Center, University of Washington, Box 357923, Seattle, WA 98195, USA.
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99
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Sipieter F, Ladik M, Vandenabeele P, Riquet F. Shining light on cell death processes - a novel biosensor for necroptosis, a newly described cell death program. Biotechnol J 2014; 9:224-40. [DOI: 10.1002/biot.201300200] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 10/03/2013] [Accepted: 11/20/2013] [Indexed: 12/24/2022]
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100
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Nomura M, Ueno A, Saga K, Fukuzawa M, Kaneda Y. Accumulation of cytosolic calcium induces necroptotic cell death in human neuroblastoma. Cancer Res 2013; 74:1056-66. [PMID: 24371227 DOI: 10.1158/0008-5472.can-13-1283] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Necrosis has been studied extensively since the early days of medicine, with some patterns of necrosis found to be programmed like apoptotic cell death. However, mechanisms of programmed necrosis (necroptosis) are yet to be fully elucidated. In this study, we investigated how the hemagglutinating virus of Japan-envelope (HVJ-E) induces necrosis in mouse xenografts of human neuroblastoma cells. HVJ-E-induced necrosis in this system was found to depend on phosphorylation of the death receptor kinase receptor interacting protein kinase 1 (RIP1) and on the production of reactive oxygen species. This process was interpreted as necroptosis, based on its suppression by the small molecule necrostatin-1, and it did not involve the TNF-α receptor pathway. We also demonstrated that increased concentrations of cytoplasmic calcium triggered necroptosis by activating calcium-calmodulin kinase (CaMK) II. Finally, we determined that RIP1 phosphorylation was mediated by CaMK II activation. Together, our results define an upstream pathway for the activation of necroptosis in neuroblastoma cells, with potential therapeutic implications.
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Affiliation(s)
- Motonari Nomura
- Authors' Affiliations: Division of Gene Therapy Science and Department of Pediatric Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
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