551
|
Flavone inhibits migration through DLC1/RhoA pathway by decreasing ROS generation in breast cancer cells. In Vitro Cell Dev Biol Anim 2016; 52:589-97. [DOI: 10.1007/s11626-016-0010-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 02/11/2016] [Indexed: 12/14/2022]
|
552
|
Meda F, Gauron C, Rampon C, Teillon J, Volovitch M, Vriz S. Nerves Control Redox Levels in Mature Tissues Through Schwann Cells and Hedgehog Signaling. Antioxid Redox Signal 2016; 24:299-311. [PMID: 26442784 PMCID: PMC4761803 DOI: 10.1089/ars.2015.6380] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AIMS Recent advances in redox biology have emphasized the role of hydrogen peroxide (H2O2) in the modulation of signaling pathways and revealed that H2O2 plays a role in cellular remodeling in adults. Thus, an understanding of the mechanisms that control H2O2 levels in mature tissue would be of great interest. RESULTS We used a denervation strategy to demonstrate that sensory neurons are responsible for controlling H2O2 levels under normal conditions and after being lesioned. Moreover, we demonstrate that severed nerves respond to appendage amputation via the induction of Hedgehog signaling and that this signaling is responsible for H2O2 production in the wounded epidermis. Finally, we show that H2O2 and nerve growth are regulated via reciprocal action in adults. INNOVATION AND CONCLUSION These data support a new paradigm for the regulation of tissue homeostasis: H2O2 attracts nerves and nerves control H2O2 levels in a positive feedback loop. This finding suggests that the peripheral nerve redox environment could be a target for manipulating cell plasticity in adults.
Collapse
Affiliation(s)
- Francesca Meda
- 1 Centre Interdisciplinaire de Recherche en Biologie (CIRB) CNRS UMR 7241/INSERM U1050/Collège de France , Paris, France .,2 École Normale Supérieure, Institute of Biology at the Ecole Normale Supérieure (IBENS) , CNRS UMR8197, INSERM U1024, Paris, France .,3 PSL Research University , Paris, France
| | - Carole Gauron
- 1 Centre Interdisciplinaire de Recherche en Biologie (CIRB) CNRS UMR 7241/INSERM U1050/Collège de France , Paris, France .,3 PSL Research University , Paris, France
| | - Christine Rampon
- 1 Centre Interdisciplinaire de Recherche en Biologie (CIRB) CNRS UMR 7241/INSERM U1050/Collège de France , Paris, France .,3 PSL Research University , Paris, France .,4 Biology Department, Université Paris Diderot , Sorbonne Paris Cité, Paris Cedex 13, France
| | - Jérémie Teillon
- 1 Centre Interdisciplinaire de Recherche en Biologie (CIRB) CNRS UMR 7241/INSERM U1050/Collège de France , Paris, France .,3 PSL Research University , Paris, France
| | - Michel Volovitch
- 1 Centre Interdisciplinaire de Recherche en Biologie (CIRB) CNRS UMR 7241/INSERM U1050/Collège de France , Paris, France .,2 École Normale Supérieure, Institute of Biology at the Ecole Normale Supérieure (IBENS) , CNRS UMR8197, INSERM U1024, Paris, France .,3 PSL Research University , Paris, France
| | - Sophie Vriz
- 1 Centre Interdisciplinaire de Recherche en Biologie (CIRB) CNRS UMR 7241/INSERM U1050/Collège de France , Paris, France .,3 PSL Research University , Paris, France .,4 Biology Department, Université Paris Diderot , Sorbonne Paris Cité, Paris Cedex 13, France
| |
Collapse
|
553
|
Mailloux RJ, Craig Ayre D, Christian SL. Induction of mitochondrial reactive oxygen species production by GSH mediated S-glutathionylation of 2-oxoglutarate dehydrogenase. Redox Biol 2016; 8:285-97. [PMID: 26928132 PMCID: PMC4776629 DOI: 10.1016/j.redox.2016.02.002] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 02/01/2016] [Accepted: 02/07/2016] [Indexed: 12/18/2022] Open
Abstract
2-Oxoglutarate dehydrogenase (Ogdh) is an important mitochondria redox sensor that can undergo S-glutathionylation following an increase in H2O2 levels. Although S-glutathionylation is required to protect Ogdh from irreversible oxidation while simultaneously modulating its activity it remains unknown if glutathione can also modulate reactive oxygen species (ROS) production by the complex. We report that reduced (GSH) and oxidized (GSSG) glutathione control O2∙-/H2O2 formation by Ogdh through protein S-glutathionylation reactions. GSSG (1 mM) induced a modest decrease in Ogdh activity which was associated with a significant decrease in O2∙-/H2O2 formation. GSH had the opposite effect, amplifying O2∙-/H2O2 formation by Ogdh. Incubation of purified Ogdh in 2.5 mM GSH led to significant increase in O2∙-/H2O2 formation which also lowered NADH production. Inclusion of enzymatically active glutaredoxin-2 (Grx2) in reaction mixtures reversed the GSH-mediated amplification of O2∙-/H2O2 formation. Similarly pre-incubation of permeabilized liver mitochondria from mouse depleted of GSH showed an approximately ~3.5-fold increase in Ogdh-mediated O2∙-/H2O2 production that was matched by a significant decrease in NADH formation which could be reversed by Grx2. Taken together, our results demonstrate GSH and GSSG modulate ROS production by Ogdh through S-glutathionylation of different subunits. This is also the first demonstration that GSH can work in the opposite direction in mitochondria-amplifying ROS formation instead of quenching it. We propose that this regulatory mechanism is required to modulate ROS emission from Ogdh in response to variations in glutathione redox buffering capacity. ROS formation by Ogdh is controlled by glutathione. GSH amplifies ROS production by Ogdh. Ogdh is S-glutathionylated by GSH. Grx2 deglutathionylates Ogdh.
Collapse
Affiliation(s)
- Ryan J Mailloux
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada.
| | - D Craig Ayre
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - Sherri L Christian
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| |
Collapse
|
554
|
Surai P, Fisinin V. 25. Antioxidant system regulation: from vitamins to vitagenes. HANDBOOK OF CHOLESTEROL 2016. [DOI: 10.3920/978-90-8686-821-6_25] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- P.F. Surai
- Feed-Food Ltd., 53 Dongola Road, KA7 3BN Ayr, UK
- Trakia University, Studentski Grad, Stara Zagora 6000, Bulgaria
- Szent Istvan University, Godollo 2103, Hungary
- Sumy National Agrarian University, Kirova Street 160, Sumy 40021, Ukraine
- Odessa National Academy of Food Technologies, Kanatna Street 112, Odessa 65000, Ukraine
| | - V.I. Fisinin
- All Russian Institute of Poultry Husbandry, Ptitzegradskaya Street 10, Sergiev Posad, Moscow region 141311, Russia
| |
Collapse
|
555
|
Greene AS, Hajduk SL. Trypanosome Lytic Factor-1 Initiates Oxidation-stimulated Osmotic Lysis of Trypanosoma brucei brucei. J Biol Chem 2016; 291:3063-75. [PMID: 26645690 PMCID: PMC4742767 DOI: 10.1074/jbc.m115.680371] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 11/12/2015] [Indexed: 01/18/2023] Open
Abstract
Human innate immunity against the veterinary pathogen Trypanosoma brucei brucei is conferred by trypanosome lytic factors (TLFs), against which human-infective T. brucei gambiense and T. brucei rhodesiense have evolved resistance. TLF-1 is a subclass of high density lipoprotein particles defined by two primate-specific apolipoproteins: the ion channel-forming toxin ApoL1 (apolipoprotein L1) and the hemoglobin (Hb) scavenger Hpr (haptoglobin-related protein). The role of oxidative stress in the TLF-1 lytic mechanism has been controversial. Here we show that oxidative processes are involved in TLF-1 killing of T. brucei brucei. The lipophilic antioxidant N,N'-diphenyl-p-phenylenediamine protected TLF-1-treated T. brucei brucei from lysis. Conversely, lysis of TLF-1-treated T. brucei brucei was increased by the addition of peroxides or thiol-conjugating agents. Previously, the Hpr-Hb complex was postulated to be a source of free radicals during TLF-1 lysis. However, we found that the iron-containing heme of the Hpr-Hb complex was not involved in TLF-1 lysis. Furthermore, neither high concentrations of transferrin nor knock-out of cytosolic lipid peroxidases prevented TLF-1 lysis. Instead, purified ApoL1 was sufficient to induce lysis, and ApoL1 lysis was inhibited by the antioxidant DPPD. Swelling of TLF-1-treated T. brucei brucei was reminiscent of swelling under hypotonic stress. Moreover, TLF-1-treated T. brucei brucei became rapidly susceptible to hypotonic lysis. T. brucei brucei cells exposed to peroxides or thiol-binding agents were also sensitized to hypotonic lysis in the absence of TLF-1. We postulate that ApoL1 initiates osmotic stress at the plasma membrane, which sensitizes T. brucei brucei to oxidation-stimulated osmotic lysis.
Collapse
Affiliation(s)
- Amy Styer Greene
- From the Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia 30602
| | - Stephen L Hajduk
- From the Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia 30602
| |
Collapse
|
556
|
Richmond CA, Shah MS, Carlone DL, Breault DT. Factors regulating quiescent stem cells: insights from the intestine and other self-renewing tissues. J Physiol 2016; 594:4805-13. [PMID: 26670741 DOI: 10.1113/jp271653] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Accepted: 12/10/2015] [Indexed: 01/06/2023] Open
Abstract
Long-lived and self-renewing adult stem cells (SCs) are essential for homeostasis in a wide range of tissues and can include both rapidly cycling and quiescent (q)SC populations. Rapidly cycling SCs function principally during normal tissue maintenance and are highly sensitive to stress, whereas qSCs exit from their quiescent state in response to homeostatic imbalance and regenerative pressure. The regulatory mechanisms underlying the quiescent state include factors essential for cell cycle control, stress response and survival pathways, developmental signalling pathways, and post-transcriptional modulation. Here, we review these regulatory mechanisms citing observations from the intestine and other self-renewing tissues.
Collapse
|
557
|
Surai PF, Fisinin VI, Karadas F. Antioxidant systems in chick embryo development. Part 1. Vitamin E, carotenoids and selenium. ACTA ACUST UNITED AC 2016; 2:1-11. [PMID: 29767100 PMCID: PMC5941026 DOI: 10.1016/j.aninu.2016.01.001] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 01/02/2016] [Accepted: 01/04/2016] [Indexed: 01/20/2023]
Abstract
Chick viability is known to be an important factor determining profitability of the poultry industry. Chick embryo tissues contain a high proportion of highly polyunsaturated fatty acids in the lipid fraction and therefore need antioxidant defence. The antioxidant system of the developing embryo and newly hatched chick includes the antioxidant enzymes (superoxide dismutase, glutathione peroxidase, catalase), water-soluble antioxidants (ascorbic acid, taurine, carnitine, glutathione, etc.), fat-soluble antioxidants (vitamin E, carotenoids, coenzyme Q) as well as selenium (Se). In fact, the high levels of endogenous antioxidants within the egg and embryonic tissues can clearly serve as a major adaptive mechanism for the protection of the tissue during the oxidative stress experienced at hatching. It has been shown that among different nutrients in the maternal diet which could significantly affect chick embryo development and their viability in the early posthatch life, natural antioxidants have been suggested to play a central role. Our data indicate that increased supplementation of the maternal diet can substantially increase concentrations of vitamin E, carotenoids (especially canthaxanthin) and Se in developing chick tissues and significantly decrease susceptibility to lipid peroxidation being effective nutritional tools to deal with various commercial stresses in poultry production.
Collapse
Affiliation(s)
- Peter F Surai
- Trakia University, Stara Zagora 6000, Bulgaria.,Szent Istvan University, Gödöllo H-2103, Hungary.,Sumy National Agrarian University, Sumy 40021, Ukraine.,Odessa National Academy of Food Technology, Odessa 65039, Ukraine.,Russian Academy of Science, Moscow 119991, Russia
| | - Vladimir I Fisinin
- Russian Academy of Science, Moscow 119991, Russia.,All-Russian Institute of Poultry Husbandry, Sergiev Posad 141311, Russia
| | - Filiz Karadas
- Department of Animal Science, Faculty of Agriculture, University of Yuzuncu Yil, Van 65080, Turkey
| |
Collapse
|
558
|
Mittra B, Laranjeira-Silva MF, Perrone Bezerra de Menezes J, Jensen J, Michailowsky V, Andrews NW. A Trypanosomatid Iron Transporter that Regulates Mitochondrial Function Is Required for Leishmania amazonensis Virulence. PLoS Pathog 2016; 12:e1005340. [PMID: 26741360 PMCID: PMC4704735 DOI: 10.1371/journal.ppat.1005340] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 11/22/2015] [Indexed: 11/20/2022] Open
Abstract
Iron, an essential co-factor of respiratory chain proteins, is critical for mitochondrial function and maintenance of its redox balance. We previously reported a role for iron uptake in differentiation of Leishmania amazonensis into virulent amastigotes, by a mechanism that involves reactive oxygen species (ROS) production and is independent of the classical pH and temperature cues. Iron import into mitochondria was proposed to be essential for this process, but evidence supporting this hypothesis was lacking because the Leishmania mitochondrial iron transporter was unknown. Here we describe MIT1, a homolog of the mitochondrial iron importer genes mrs3 (yeast) and mitoferrin-1 (human) that is highly conserved among trypanosomatids. MIT1 expression was essential for the survival of Trypanosoma brucei procyclic but not bloodstream forms, which lack functional respiratory complexes. L. amazonensis LMIT1 null mutants could not be generated, suggesting that this mitochondrial iron importer is essential for promastigote viability. Promastigotes lacking one LMIT1 allele (LMIT1/Δlmit1) showed growth defects and were more susceptible to ROS toxicity, consistent with the role of iron as the essential co-factor of trypanosomatid mitochondrial superoxide dismutases. LMIT1/Δlmit1 metacyclic promastigotes were unable to replicate as intracellular amastigotes after infecting macrophages or cause cutaneous lesions in mice. When induced to differentiate axenically into amastigotes, LMIT1/Δlmit1 showed strong defects in iron content and function of mitochondria, were unable to upregulate the ROS-regulatory enzyme FeSOD, and showed mitochondrial changes suggestive of redox imbalance. Our results demonstrate the importance of mitochondrial iron uptake in trypanosomatid parasites, and highlight the role of LMIT1 in the iron-regulated process that orchestrates differentiation of L. amazonensis into infective amastigotes. Leishmaniasis is a serious parasitic disease that affects 12 million people worldwide, with clinical manifestations ranging from self-healing cutaneous lesions to deadly visceralizing disease. A vaccine is not available, and new and less toxic drugs against this protozoan parasite are urgently needed. Following introduction into vertebrate hosts during a sand fly blood meal, Leishmania parasites undergo extensive changes in morphology and metabolism that are critical for adaptation to life inside host macrophages and replication as amastigotes. Earlier studies identified major events that occur during amastigote differentiation, but the signaling mechanism initiating this process remained poorly understood. Previously we demonstrated a novel role for the reactive oxygen species (ROS) H2O2 in initiating amastigote differentiation, a process proposed to be dependent on iron availability inside the parasite’s mitochondria. In this study we identify LMIT1, a Leishmania transmembrane protein that functions as a mitochondrial iron transporter and is conserved in other trypanosomatid protozoan parasites. Reduced LMIT1 expression impairs mitochondrial function in the infective amastigote stage, abolishing parasite virulence. Our findings identify LMIT1 as a promising new drug target, and support the conclusion that iron-dependent ROS signals generated in the mitochondria regulate differentiation of virulent Leishmania amastigotes.
Collapse
Affiliation(s)
- Bidyottam Mittra
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, United States of America
| | | | - Juliana Perrone Bezerra de Menezes
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, United States of America
- Laboratório de Patologia e Biointervenção, CPqGM, FIOCRUZ, Candeal, Salvador, Bahia, Brazil
| | - Jennifer Jensen
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, United States of America
| | - Vladimir Michailowsky
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, United States of America
- Faculdade de Medicina, Setor Parasitologia, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
| | - Norma W. Andrews
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, United States of America
- * E-mail:
| |
Collapse
|
559
|
Reactive Oxygen Species and Targeted Therapy for Pancreatic Cancer. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:1616781. [PMID: 26881012 PMCID: PMC4735911 DOI: 10.1155/2016/1616781] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 11/28/2015] [Accepted: 12/07/2015] [Indexed: 01/03/2023]
Abstract
Pancreatic cancer is the fourth leading cause of cancer-related death in the United States. Reactive oxygen species (ROS) are generally increased in pancreatic cancer cells compared with normal cells. ROS plays a vital role in various cellular biological activities including proliferation, growth, apoptosis, and invasion. Besides, ROS participates in tumor microenvironment orchestration. The role of ROS is a doubled-edged sword in pancreatic cancer. The dual roles of ROS depend on the concentration. ROS facilitates carcinogenesis and cancer progression with mild-to-moderate elevated levels, while excessive ROS damages cancer cells dramatically and leads to cell death. Based on the recent knowledge, either promoting ROS generation to increase the concentration of ROS with extremely high levels or enhancing ROS scavenging ability to decrease ROS levels may benefit the treatment of pancreatic cancer. However, when faced with oxidative stress, the antioxidant programs of cancer cells have been activated to help cancer cells to survive in the adverse condition. Furthermore, ROS signaling and antioxidant programs play the vital roles in the progression of pancreatic cancer and in the response to cancer treatment. Eventually, it may be the novel target for various strategies and drugs to modulate ROS levels in pancreatic cancer therapy.
Collapse
|
560
|
Kesarwala AH, Krishna MC, Mitchell JB. Oxidative stress in oral diseases. Oral Dis 2016; 22:9-18. [PMID: 25417961 PMCID: PMC4442080 DOI: 10.1111/odi.12300] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 11/14/2014] [Accepted: 11/14/2014] [Indexed: 01/10/2023]
Abstract
Oxidative species, including reactive oxygen species (ROS), are components of normal cellular metabolism and are required for intracellular processes as varied as proliferation, signal transduction, and apoptosis. In the situation of chronic oxidative stress, however, ROS contribute to various pathophysiologies and are involved in multiple stages of carcinogenesis. In head and neck cancers specifically, many common risk factors contribute to carcinogenesis via ROS-based mechanisms, including tobacco, areca quid, alcohol, and viruses. Given their widespread influence on the process of carcinogenesis, ROS and their related pathways are attractive targets for intervention. The effects of radiation therapy, a central component of treatment for nearly all head and neck cancers, can also be altered via interfering with oxidative pathways. These pathways are also relevant to the development of many benign oral diseases. In this review, we outline how ROS contribute to pathophysiology with a focus toward head and neck cancers and benign oral diseases, describing potential targets and pathways for intervention that exploit the role of oxidative species in these pathologic processes.
Collapse
Affiliation(s)
- Aparna H. Kesarwala
- Radiation Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - Murali C. Krishna
- Radiation Biology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| | - James B. Mitchell
- Radiation Biology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892
| |
Collapse
|
561
|
Saxena I, Srikanth S, Chen Z. Cross Talk between H2O2 and Interacting Signal Molecules under Plant Stress Response. FRONTIERS IN PLANT SCIENCE 2016; 7:570. [PMID: 27200043 DOI: 10.3389/fpls.2016.00570/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 04/13/2016] [Indexed: 05/20/2023]
Abstract
It is well established that oxidative stress is an important cause of cellular damage. During stress conditions, plants have evolved regulatory mechanisms to adapt to various environmental stresses. One of the consequences of stress is an increase in the cellular concentration of reactive oxygen species, which is subsequently converted to H2O2. H2O2 is continuously produced as the byproduct of oxidative plant aerobic metabolism. Organelles with a high oxidizing metabolic activity or with an intense rate of electron flow, such as chloroplasts, mitochondria, or peroxisomes are major sources of H2O2 production. H2O2 acts as a versatile molecule because of its dual role in cells. Under normal conditions, H2O2 immerges as an important factor during many biological processes. It has been established that it acts as a secondary messenger in signal transduction networks. In this review, we discuss potential roles of H2O2 and other signaling molecules during various stress responses.
Collapse
Affiliation(s)
- Ina Saxena
- Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University Singapore, Singapore
| | - Sandhya Srikanth
- Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University Singapore, Singapore
| | - Zhong Chen
- Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University Singapore, Singapore
| |
Collapse
|
562
|
Li P, Wu M, Wang J, Sui Y, Liu S, Shi D. NAC selectively inhibit cancer telomerase activity: A higher redox homeostasis threshold exists in cancer cells. Redox Biol 2015; 8:91-7. [PMID: 26771767 PMCID: PMC5022045 DOI: 10.1016/j.redox.2015.12.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 11/30/2015] [Accepted: 12/06/2015] [Indexed: 01/12/2023] Open
Abstract
Telomerase activity controls telomere length, and this plays an important role in stem cells, aging and tumors. Antioxidant was shown to protect telomerase activity in normal cells but inhibit that in cancer cells, but the underlying mechanism is elusive. Here we found that 7721 hepatoma cells held a higher redox homeostasis threshold than L02 normal liver cells which caused 7721 cells to have a higher demand for ROS; MnSOD over-expression in 7721 decreased endogenous reactive oxygen species (ROS) and inhibited telomerase activity; Akt phosphorylation inhibitor and NAC both inhibited 7721 telomerase activity. The over-elimination of ROS by NAC resulted in the inhibition of Akt pathway. Our results suggest that ROS is involved in the regulation of cancer telomerase activity through Akt pathway. The different intracellular redox homeostasis and antioxidant system in normal cells and tumor cells may be the cause of the opposite effect on telomerase activity in response to NAC treatment. Our results provide a theoretical base of using antioxidants selectively inhibit cancer telomerase activity. Findings of the present study may provide insights into novel approaches for cancer treatment. This study explains why antioxidants selectively inhibit cancer telomerase activity. Cancer cells have higher redox homeostasis threshold than normal cells. ROS is involved in the regulation of cancer telomerase activity through Akt pathway.
Collapse
Affiliation(s)
- Pengying Li
- Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University, Free Radical Regulation and Application Research Center of Fudan University, Shanghai 200032, People's Republic of China
| | - Meilin Wu
- Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University, Free Radical Regulation and Application Research Center of Fudan University, Shanghai 200032, People's Republic of China
| | - Jing Wang
- Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University, Free Radical Regulation and Application Research Center of Fudan University, Shanghai 200032, People's Republic of China
| | - Yilun Sui
- Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University, Free Radical Regulation and Application Research Center of Fudan University, Shanghai 200032, People's Republic of China
| | - Shanlin Liu
- Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University, Free Radical Regulation and Application Research Center of Fudan University, Shanghai 200032, People's Republic of China
| | - Dongyun Shi
- Department of Biochemistry and Molecular Biology, Shanghai Medical College of Fudan University, Free Radical Regulation and Application Research Center of Fudan University, Shanghai 200032, People's Republic of China.
| |
Collapse
|
563
|
Li S, Chen G, Wu M, Zhang J, Wu S. Restraining of reactive oxygen species promotes invasion ofListeria monocytogenesinto glia cells. FEMS Microbiol Lett 2015; 363:fnv228. [DOI: 10.1093/femsle/fnv228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2015] [Indexed: 12/15/2022] Open
|
564
|
Tomar D, Prajapati P, Lavie J, Singh K, Lakshmi S, Bhatelia K, Roy M, Singh R, Bénard G, Singh R. TRIM4; a novel mitochondrial interacting RING E3 ligase, sensitizes the cells to hydrogen peroxide (H2O2) induced cell death. Free Radic Biol Med 2015; 89:1036-48. [PMID: 26524401 DOI: 10.1016/j.freeradbiomed.2015.10.425] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Revised: 10/27/2015] [Accepted: 10/28/2015] [Indexed: 10/22/2022]
Abstract
The emerging evidences suggest that posttranslational modification of target protein by ubiquitin (Ub) not only regulate its turnover through ubiquitin proteasome system (UPS) but is a critical regulator of various signaling pathways. During ubiquitination, E3 ligase recognizes the target protein and determines the topology of ubiquitin chains. In current study, we studied the role of TRIM4, a member of the TRIM/RBCC protein family of RING E3 ligase, in regulation of hydrogen peroxide (H2O2) induced cell death. TRIM4 is expressed differentially in human tissues and expressed in most of the analyzed human cancer cell lines. The subcellular localization studies showed that TRIM4 forms distinct cytoplasmic speckle like structures which transiently interacts with mitochondria. The expression of TRIM4 induces mitochondrial aggregation and increased level of mitochondrial ROS in the presence of H2O2. It sensitizes the cells to H2O2 induced death whereas knockdown reversed the effect. TRIM4 potentiates the loss of mitochondrial transmembrane potential and cytochrome c release in the presence of H2O2. The analysis of TRIM4 interacting proteins showed its interaction with peroxiredoxin 1 (PRX1), including other proteins involved in regulation of mitochondrial and redox homeostasis. TRIM4 interaction with PRX1 is critical for the regulation of H2O2 induced cell death. Collectively, the evidences in the current study suggest the role of TRIM4 in regulation of oxidative stress induced cell death.
Collapse
Affiliation(s)
- Dhanendra Tomar
- Department of Cell Biology, School of Biological Sciences and Biotechnology, Indian Institute of Advanced Research, Gandhinagar, India; Université de Bordeaux, Laboratoire Maladie Rares: Genetique et metabolisme, Hopital Pellegrin, 33076 Bordeaux, France
| | - Paresh Prajapati
- Department of Biochemistry, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, Gujarat, India
| | - Julie Lavie
- Université de Bordeaux, Laboratoire Maladie Rares: Genetique et metabolisme, Hopital Pellegrin, 33076 Bordeaux, France
| | - Kritarth Singh
- Department of Biochemistry, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, Gujarat, India
| | - Sripada Lakshmi
- Department of Biochemistry, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, Gujarat, India
| | - Khyati Bhatelia
- Department of Biochemistry, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, Gujarat, India
| | - Milton Roy
- Department of Biochemistry, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, Gujarat, India
| | - Rochika Singh
- Department of Cell Biology, School of Biological Sciences and Biotechnology, Indian Institute of Advanced Research, Gandhinagar, India
| | - Giovanni Bénard
- Université de Bordeaux, Laboratoire Maladie Rares: Genetique et metabolisme, Hopital Pellegrin, 33076 Bordeaux, France.
| | - Rajesh Singh
- Department of Biochemistry, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, Gujarat, India.
| |
Collapse
|
565
|
Xie WY, Zhou XD, Li Q, Chen LX, Ran DH. Acid-induced autophagy protects human lung cancer cells from apoptosis by activating ER stress. Exp Cell Res 2015; 339:270-9. [DOI: 10.1016/j.yexcr.2015.11.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Revised: 10/22/2015] [Accepted: 11/06/2015] [Indexed: 02/04/2023]
|
566
|
Cobbina SJ, Xu H, Zhao T, Mao G, Zhou Z, Wu X, Liu H, Zou Y, Wu X, Yang L. A multivariate assessment of innate immune-related gene expressions due to exposure to low concentration individual and mixtures of four kinds of heavy metals on zebrafish (Danio rerio) embryos. FISH & SHELLFISH IMMUNOLOGY 2015; 47:1032-1042. [PMID: 26549173 DOI: 10.1016/j.fsi.2015.11.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 10/30/2015] [Accepted: 11/02/2015] [Indexed: 06/05/2023]
Abstract
Concerns over the potential health effects of mixtures of low concentration heavy metals on living organisms keep growing by the day. However, the toxicity of low concentration metal mixtures on the immune system of fish species has rarely been investigated. In this study, the zebrafish model was employed to investigate the effect on innate immune and antioxidant-related gene expressions, on exposure to environmentally relevant concentrations of individual and mixtures of Pb (0.01 mg/L), Hg (0.001 mg/L), As (0.01 mg/L) and Cd (0.005 mg/L). Messenger-RNA (mRNA) levels of IL1β, TNF-α, IFNγ, Mx, Lyz, C3B and CXCL-Clc which are closely associated with the innate immune system were affected after exposing zebrafish embryos to metals for 120 h post fertilization (hpf). Individual and mixtures of metals exhibited different potentials to modulate innate-immune gene transcription. IL1β genes were significantly up regulated on exposure to Pb + As (2.01-fold) and inhibited on exposure to Pb + Hg + Cd (0.13-fold). TNF-α was significantly inhibited on exposure to As (0.40-fold) and Pb + As (0.32-fold) compared to control. Metal mixtures generally up regulated IFNγ compared to individual metals. Additionally, antioxidant genes were affected, as CAT and GPx gene expressions generally increased, whiles Mn-SOD and Zn/Cu-SOD reduced. Multivariate analysis showed that exposure to individual metals greatly influenced modulation of innate immune genes; whiles metal mixtures influenced antioxidant gene expressions. This suggests that beside oxidative stress, there may be other pathways influencing gene expressions of innate immune and antioxidant-related genes. Low concentration heavy metals also affect expression of development-related (wnt8a and vegf) genes. Altogether, the results of this study clearly demonstrate that low concentration individual and mixtures of metals in aquatic systems will greatly influence the immune system. It is indicative that mechanisms associated with toxicity of metal mixtures is complex, however, further studies to elucidate them are ongoing in our research laboratory.
Collapse
Affiliation(s)
- Samuel Jerry Cobbina
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Hai Xu
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Ting Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China
| | - Guanghua Mao
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Zhaoxiang Zhou
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China
| | - Xueshan Wu
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China
| | - Hongyang Liu
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Yanmin Zou
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China
| | - Xiangyang Wu
- School of the Environment and Safety Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, Jiangsu, China.
| | - Liuqing Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Rd. 301, Zhenjiang 212013, China.
| |
Collapse
|
567
|
Cao B, Chai C, Zhao S. Protective effect of Edaravone against hypoxia-induced cytotoxicity in osteoblasts MC3T3-E1 cells. IUBMB Life 2015; 67:928-33. [PMID: 26596678 DOI: 10.1002/iub.1436] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 08/24/2015] [Indexed: 12/17/2022]
Abstract
Edaravone is a newly developed clinical medicine for the treatment of acute cerebral infarction. Reduced blood supply to bones (hypoxia) has been involved in the pathological development of osteoporosis. In this study, we investigated the effect of Edaravone and its latent mechanism on hypoxia-induced cell toxicity in MC3T3-E1 cells. Cell viability was determined by the 3-(4,5-dimethyl-thiazol-2yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. Intracellular reactive oxygen species (ROS) and nitric oxide (NO) were determined by the fluorescence dyes 2',7'-dichlorofluorescein diacetate (DCFH-DA) and 4-amino-5-methylamino-2',7'-difluorofluorescein diacetate (DAF-FM DA), respectively. mRNA and proteins were determined by real-time polymerase chain reaction and Western blot analysis, respectively. Edaravone significantly restored the hypoxia-induced reduction of MC3T3-E1 cell viability and inhibited lactate dehydrogenase release. In addition, we found that Edaravone inhibits the generation of ROS and NO. Hoechst staining results indicated that the nuclear condensation characteristic of apoptosis was increased in MC3T3-E1 cells after hypoxia exposure, which was significantly suppressed by Edaravone treatment. Mechanistically, we found that Edaravone markedly reduced the expression of cleaved caspase-3 and blunted the release of cytochrome c. These findings strongly suggested that Edaravone suppresses hypoxia-induced cytotoxicity in MC3T3-E1 cells. The pleiotropic effects of Edaravone on hypoxia exposure in osteoblasts suggest potential antiosteoporosis mechanisms of Edaravone.
Collapse
Affiliation(s)
- Bo Cao
- Emergency Department, Weifang Medical School Affiliated Hospital, Weifang City, Shandong Province, China
| | - Chunxiang Chai
- Emergency Department, Weifang Medical School Affiliated Hospital, Weifang City, Shandong Province, China
| | - Sishun Zhao
- Emergency Department, Weifang Medical School Affiliated Hospital, Weifang City, Shandong Province, China
| |
Collapse
|
568
|
Redox Modulating NRF2: A Potential Mediator of Cancer Stem Cell Resistance. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:2428153. [PMID: 26682001 PMCID: PMC4670665 DOI: 10.1155/2016/2428153] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 07/27/2015] [Indexed: 12/17/2022]
Abstract
Tumors contain a distinct small subpopulation of cells that possess stem cell-like characteristics. These cells have been called cancer stem cells (CSCs) and are thought to be responsible for anticancer drug resistance and tumor relapse after therapy. Emerging evidence indicates that CSCs share many properties, such as self-renewal and quiescence, with normal stem cells. In particular, CSCs and normal stem cells retain low levels of reactive oxygen species (ROS), which can contribute to stem cell maintenance and resistance to stressful tumor environments. Current literatures demonstrate that the activation of ataxia telangiectasia mutated (ATM) and forkhead box O3 (FoxO3) is associated with the maintenance of low ROS levels in normal stem cells such as hematopoietic stem cells. However, the importance of ROS signaling in CSC biology remains poorly understood. Recent studies demonstrate that nuclear factor-erythroid 2-related factor 2 (NRF2), a master regulator of the cellular antioxidant defense system, is involved in the maintenance of quiescence, survival, and stress resistance of CSCs. Here, we review the recent findings on the roles of NRF2 in maintenance of the redox state and multidrug resistance in CSCs, focusing on how NRF2-mediated ROS modulation influences the growth and resistance of CSCs.
Collapse
|
569
|
Driessen MD, Mues S, Vennemann A, Hellack B, Bannuscher A, Vimalakanthan V, Riebeling C, Ossig R, Wiemann M, Schnekenburger J, Kuhlbusch TAJ, Renard B, Luch A, Haase A. Proteomic analysis of protein carbonylation: a useful tool to unravel nanoparticle toxicity mechanisms. Part Fibre Toxicol 2015; 12:36. [PMID: 26525058 PMCID: PMC4630844 DOI: 10.1186/s12989-015-0108-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 10/07/2015] [Indexed: 02/07/2023] Open
Abstract
Background Oxidative stress, a commonly used paradigm to explain nanoparticle (NP)-induced toxicity, results from an imbalance between reactive oxygen species (ROS) generation and detoxification. As one consequence, protein carbonyl levels may become enhanced. Thus, the qualitative and quantitative description of protein carbonylation may be used to characterize how biological systems respond to oxidative stress induced by NPs. Methods We investigated a representative panel of 24 NPs including functionalized amorphous silica (6), zirconium dioxide (4), silver (4), titanium dioxide (3), zinc oxide (2), multiwalled carbon nanotubes (3), barium sulfate and boehmite. Surface reactivities of all NPs were studied in a cell-free system by electron spin resonance (ESR). NRK-52E cells were treated with all NPs, analyzed for viability (WST-1 assay) and intracellular ROS production (DCFDA assay). Carbonylated proteins were assessed by 1D and/or 2D immunoblotting and identified by matrix assisted laser desorption time-of-flight mass spectrometry (MALDI-TOF/TOF). In parallel, tissue homogenates from rat lungs intratracheally instilled with silver NPs were studied. Results Eleven NPs induced elevated levels of carbonylated proteins. This was in good agreement with the surface reactivity of the NPs as obtained by ESR and the reduction in cell viability as assessed by WST-1 assay. By contrast, results obtained by DCFDA assay were deviating. Each NP induced an individual pattern of protein carbonyls on 2D immunoblots. Affected proteins comprised cytoskeletal components, proteins being involved in stress response, or cytoplasmic enzymes of central metabolic pathways such as glycolysis and gluconeogenesis. Furthermore, induction of carbonyls upon silver NP treatment was also verified in rat lung tissue homogenates. Conclusions Analysis of protein carbonylation is a versatile and sensitive method to describe NP-induced oxidative stress and, therefore, can be used to identify NPs of concern. Furthermore, detailed information about compromised proteins may aid in classifying NPs according to their mode of action. Electronic supplementary material The online version of this article (doi:10.1186/s12989-015-0108-2) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Marc D Driessen
- Department of Chemicals and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
| | - Sarah Mues
- Biomedical Technology Center, Westfälische Wilhelms-University, Münster, Germany.
| | | | - Bryan Hellack
- Institute of Energy and Environmental Technology (IUTA) e.V., Air Quality & Sustainable Nanotechnology, Duisburg, Germany.
| | - Anne Bannuscher
- Department of Chemicals and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
| | - Vishalini Vimalakanthan
- Department of Chemicals and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany. .,Robert-Koch-Institut (RKI), Junior Research Group Bioinformatics, Berlin, Germany.
| | - Christian Riebeling
- Department of Chemicals and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
| | - Rainer Ossig
- Biomedical Technology Center, Westfälische Wilhelms-University, Münster, Germany.
| | - Martin Wiemann
- IBE R&D gGmbH, Institute for Lung Health, Münster, Germany.
| | | | - Thomas A J Kuhlbusch
- Institute of Energy and Environmental Technology (IUTA) e.V., Air Quality & Sustainable Nanotechnology, Duisburg, Germany. .,Center for Nanointegration CENIDE, University of Duisburg-Essen, Duisburg, Germany.
| | - Bernhard Renard
- Robert-Koch-Institut (RKI), Junior Research Group Bioinformatics, Berlin, Germany.
| | - Andreas Luch
- Department of Chemicals and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
| | - Andrea Haase
- Department of Chemicals and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany.
| |
Collapse
|
570
|
Zug R, Hammerstein P. Wolbachia and the insect immune system: what reactive oxygen species can tell us about the mechanisms of Wolbachia-host interactions. Front Microbiol 2015; 6:1201. [PMID: 26579107 PMCID: PMC4621438 DOI: 10.3389/fmicb.2015.01201] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 10/15/2015] [Indexed: 01/06/2023] Open
Abstract
Wolbachia are intracellular bacteria that infect a vast range of arthropod species, making them one of the most prevalent endosymbionts in the world. Wolbachia's stunning evolutionary success is mostly due to their reproductive parasitism but also to mutualistic effects such as increased host fecundity or protection against pathogens. However, the mechanisms underlying Wolbachia phenotypes, both parasitic and mutualistic, are only poorly understood. Moreover, it is unclear how the insect immune system is involved in these phenotypes and why it is not more successful in eliminating the bacteria. Here we argue that reactive oxygen species (ROS) are likely to be key in elucidating these issues. ROS are essential players in the insect immune system, and Wolbachia infection can affect ROS levels in the host. Based on recent findings, we elaborate a hypothesis that considers the different effects of Wolbachia on the oxidative environment in novel vs. native hosts. We propose that newly introduced Wolbachia trigger an immune response and cause oxidative stress, whereas in coevolved symbioses, infection is not associated with oxidative stress, but rather with restored redox homeostasis. Redox homeostasis can be restored in different ways, depending on whether Wolbachia or the host is in charge. This hypothesis offers a mechanistic explanation for several of the observed Wolbachia phenotypes.
Collapse
Affiliation(s)
- Roman Zug
- Institute for Theoretical Biology, Humboldt-Universität zu Berlin, Berlin, Germany
| | | |
Collapse
|
571
|
Kaya A, Lee BC, Gladyshev VN. Regulation of protein function by reversible methionine oxidation and the role of selenoprotein MsrB1. Antioxid Redox Signal 2015; 23:814-22. [PMID: 26181576 PMCID: PMC4589106 DOI: 10.1089/ars.2015.6385] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
SIGNIFICANCE Protein structure and function can be regulated via post-translational modifications by numerous enzymatic and nonenzymatic mechanisms. Regulation involving oxidation of sulfur-containing residues emerged as a key mechanism of redox control. Unraveling the participants and principles of such regulation is necessary for understanding the biological significance of redox control of cellular processes. RECENT ADVANCES Reversible oxidation of methionine residues by monooxygenases of the Mical family and subsequent reduction of methionine sulfoxides by a selenocysteine-containing methionine sulfoxide reductase B1 (MsrB1) was found to control the assembly and disassembly of actin in mammals, and the Mical/MsrB pair similarly regulates actin in fruit flies. This finding has opened up new avenues for understanding the use of stereospecific methionine oxidation in regulating cellular processes and the roles of MsrB1 and Micals in regulation of actin dynamics. CRITICAL ISSUES So far, Micals have been the only known partners of MsrB1, and actin is the only target. It is important to identify additional substrates of Micals and characterize other Mical-like enzymes. FUTURE DIRECTIONS Oxidation of methionine, reviewed here, is an emerging but not well-established mechanism. Studies suggest that methionine oxidation is a form of oxidative damage of proteins, a modification that alters protein structure or function, a tool in redox signaling, and a mechanism that controls protein function. Understanding the functional impact of reversible oxidation of methionine will require identification of targets, substrates, and regulators of Micals and Msrs. Linking the biological processes, in which these proteins participate, might also lead to insights into disease conditions, which involve regulation of actin by Micals and Msrs.
Collapse
Affiliation(s)
- Alaattin Kaya
- 1 Division of Genetics, Department of Medicine, Brigham and Women's Hospital , Harvard Medical School, Boston, Massachusetts
| | - Byung Cheon Lee
- 2 College of Life Sciences and Biotechnology, Korea University , Seoul, South Korea
| | - Vadim N Gladyshev
- 1 Division of Genetics, Department of Medicine, Brigham and Women's Hospital , Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
572
|
Abstract
Store-operated calcium channels (SOCs) are a major pathway for calcium signaling in virtually all metozoan cells and serve a wide variety of functions ranging from gene expression, motility, and secretion to tissue and organ development and the immune response. SOCs are activated by the depletion of Ca(2+) from the endoplasmic reticulum (ER), triggered physiologically through stimulation of a diverse set of surface receptors. Over 15 years after the first characterization of SOCs through electrophysiology, the identification of the STIM proteins as ER Ca(2+) sensors and the Orai proteins as store-operated channels has enabled rapid progress in understanding the unique mechanism of store-operate calcium entry (SOCE). Depletion of Ca(2+) from the ER causes STIM to accumulate at ER-plasma membrane (PM) junctions where it traps and activates Orai channels diffusing in the closely apposed PM. Mutagenesis studies combined with recent structural insights about STIM and Orai proteins are now beginning to reveal the molecular underpinnings of these choreographic events. This review describes the major experimental advances underlying our current understanding of how ER Ca(2+) depletion is coupled to the activation of SOCs. Particular emphasis is placed on the molecular mechanisms of STIM and Orai activation, Orai channel properties, modulation of STIM and Orai function, pharmacological inhibitors of SOCE, and the functions of STIM and Orai in physiology and disease.
Collapse
Affiliation(s)
- Murali Prakriya
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California
| | - Richard S Lewis
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California
| |
Collapse
|
573
|
Carmona-Ribeiro AM, Prieto T, Nantes IL. Nanostructures for peroxidases. Front Mol Biosci 2015; 2:50. [PMID: 26389124 PMCID: PMC4558528 DOI: 10.3389/fmolb.2015.00050] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 08/19/2015] [Indexed: 11/13/2022] Open
Abstract
Peroxidases are enzymes catalyzing redox reactions that cleave peroxides. Their active redox centers have heme, cysteine thiols, selenium, manganese, and other chemical moieties. Peroxidases and their mimetic systems have several technological and biomedical applications such as environment protection, energy production, bioremediation, sensors and immunoassays design, and drug delivery devices. The combination of peroxidases or systems with peroxidase-like activity with nanostructures such as nanoparticles, nanotubes, thin films, liposomes, micelles, nanoflowers, nanorods and others is often an efficient strategy to improve catalytic activity, targeting, and reusability.
Collapse
Affiliation(s)
- Ana M Carmona-Ribeiro
- Biocolloids Laboratory, Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo São Paulo, Brazil
| | - Tatiana Prieto
- NanoBioMav, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC Santo André, Brazil
| | - Iseli L Nantes
- NanoBioMav, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC Santo André, Brazil
| |
Collapse
|
574
|
Nobre L, Wise D, Ron D, Volmer R. Modulation of Innate Immune Signalling by Lipid-Mediated MAVS Transmembrane Domain Oligomerization. PLoS One 2015; 10:e0136883. [PMID: 26317833 PMCID: PMC4552940 DOI: 10.1371/journal.pone.0136883] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 08/10/2015] [Indexed: 11/26/2022] Open
Abstract
RIG-I-like receptors detect viral RNA in infected cells and promote oligomerization of the outer mitochondrial membrane protein MAVS to induce innate immunity to viral infection through type I interferon production. Mitochondrial reactive oxygen species (mROS) have been shown to enhance anti-viral MAVS signalling, but the mechanisms have remained obscure. Using a biochemical oligomerization-reporter fused to the transmembrane domain of MAVS, we found that mROS inducers promoted lipid-dependent MAVS transmembrane domain oligomerization in the plane of the outer mitochondrial membrane. These events were mirrored by Sendai virus infection, which similarly induced lipid peroxidation and promoted lipid-dependent MAVS transmembrane domain oligomerization. Our observations point to a role for mROS-induced changes in lipid bilayer properties in modulating antiviral innate signalling by favouring the oligomerization of MAVS transmembrane domain in the outer-mitochondrial membrane.
Collapse
Affiliation(s)
- Luis Nobre
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
- Wellcome Trust MRC Institute of Metabolic Science, Cambridge, United Kingdom
- NIHR Cambridge Biomedical Research Centre, Cambridge, United Kingdom
| | - Daniel Wise
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
- Wellcome Trust MRC Institute of Metabolic Science, Cambridge, United Kingdom
- NIHR Cambridge Biomedical Research Centre, Cambridge, United Kingdom
| | - David Ron
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
- Wellcome Trust MRC Institute of Metabolic Science, Cambridge, United Kingdom
- NIHR Cambridge Biomedical Research Centre, Cambridge, United Kingdom
| | - Romain Volmer
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
- Wellcome Trust MRC Institute of Metabolic Science, Cambridge, United Kingdom
- NIHR Cambridge Biomedical Research Centre, Cambridge, United Kingdom
- Université de Toulouse, INP, ENVT, UMR1225, IHAP, F-31076 Toulouse, France
- INRA, UMR1225, IHAP, F-31076 Toulouse, France
- * E-mail:
| |
Collapse
|
575
|
Silva BJC, Seca AML, Barreto MDC, Pinto DCGA. Recent Breakthroughs in the Antioxidant and Anti-Inflammatory Effects of Morella and Myrica Species. Int J Mol Sci 2015; 16:17160-80. [PMID: 26225964 PMCID: PMC4581187 DOI: 10.3390/ijms160817160] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 07/13/2015] [Accepted: 07/14/2015] [Indexed: 01/01/2023] Open
Abstract
Oxidative stress is one of the risk factors for the development of several chronic diseases, such as diabetes, cancer, cardiovascular and neurodegenerative diseases. Antioxidants are therefore highly sought and can be seen as a type of preventive medicine against several diseases. Myrica and Morella genus (Myricaceae) are taxonomically very close and their species are trees or shrubs with edible fruits that exhibit relevant uses in traditional medicine, for instance in Chinese or Japanese folk medicine they are used to treat diarrhea, digestive problems, headache, burns and skin diseases. Nearly 36 compounds were isolated from different morphological parts of Myrica and/or Morella species and their antioxidant and anti-inflammatory activities evaluated. Thirteen of these compounds exhibit greater effects than the positive controls used. Adenodimerin A was the most active compound reported (in a 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay EC50= 7.9 ± 0.3 µM). These results are just one aspect of the antioxidant and anti-inflammatory evaluations reported regarding Myrica and Morella species, so a comprehensive overview on the current status, highlighting the antioxidant health promoting effect of these species, their key antioxidant compounds as well as the compounds with protective effects against oxidative stress related diseases such as inflammation, is relevant.
Collapse
Affiliation(s)
- Bruno J C Silva
- Department of Technological Science and Development, University of Azores, Ponta Delgada 9501-801, Portugal.
| | - Ana M L Seca
- Department of Technological Science and Development, University of Azores, Ponta Delgada 9501-801, Portugal.
- Department of Chemistry & Química Orgânica Produtos Naturais and Agroalimentares, University of Aveiro, Aveiro 3810-193, Portugal.
| | - Maria do Carmo Barreto
- Department of Technological Science and Development, University of Azores, Ponta Delgada 9501-801, Portugal.
- Centro Investigação Recursos Naturais, University of Azores, Ponta Delgada 9501-801, Portugal.
| | - Diana C G A Pinto
- Department of Chemistry & Química Orgânica Produtos Naturais and Agroalimentares, University of Aveiro, Aveiro 3810-193, Portugal.
| |
Collapse
|
576
|
Kruiswijk F, Labuschagne CF, Vousden KH. p53 in survival, death and metabolic health: a lifeguard with a licence to kill. Nat Rev Mol Cell Biol 2015; 16:393-405. [PMID: 26122615 DOI: 10.1038/nrm4007] [Citation(s) in RCA: 776] [Impact Index Per Article: 86.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The function of p53 as a tumour suppressor has been attributed to its ability to promote cell death or permanently inhibit cell proliferation. However, in recent years, it has become clear that p53 can also contribute to cell survival. p53 regulates various metabolic pathways, helping to balance glycolysis and oxidative phosphorylation, limiting the production of reactive oxygen species, and contributing to the ability of cells to adapt to and survive mild metabolic stresses. Although these activities may be integrated into the tumour suppressive functions of p53, deregulation of some elements of the p53-induced response might also provide tumours with a survival advantage.
Collapse
Affiliation(s)
- Flore Kruiswijk
- 1] Cancer Research UK Beatson Institute, Switchback Road, Glasgow G61 1BD, UK. [2]
| | | | - Karen H Vousden
- Cancer Research UK Beatson Institute, Switchback Road, Glasgow G61 1BD, UK
| |
Collapse
|
577
|
Lorendeau D, Christen S, Rinaldi G, Fendt SM. Metabolic control of signalling pathways and metabolic auto-regulation. Biol Cell 2015; 107:251-72. [DOI: 10.1111/boc.201500015] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 04/20/2015] [Indexed: 02/06/2023]
Affiliation(s)
- Doriane Lorendeau
- Vesalius Research Center; VIB; Leuven 3000 Belgium
- Department of Oncology; KU Leuven; Leuven 3000 Belgium
| | - Stefan Christen
- Vesalius Research Center; VIB; Leuven 3000 Belgium
- Department of Oncology; KU Leuven; Leuven 3000 Belgium
| | - Gianmarco Rinaldi
- Vesalius Research Center; VIB; Leuven 3000 Belgium
- Department of Oncology; KU Leuven; Leuven 3000 Belgium
| | - Sarah-Maria Fendt
- Vesalius Research Center; VIB; Leuven 3000 Belgium
- Department of Oncology; KU Leuven; Leuven 3000 Belgium
| |
Collapse
|
578
|
Regulation of thrombosis and vascular function by protein methionine oxidation. Blood 2015; 125:3851-9. [PMID: 25900980 DOI: 10.1182/blood-2015-01-544676] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 04/14/2015] [Indexed: 02/07/2023] Open
Abstract
Redox biology is fundamental to both normal cellular homeostasis and pathological states associated with excessive oxidative stress. Reactive oxygen species function not only as signaling molecules but also as redox regulators of protein function. In the vascular system, redox reactions help regulate key physiologic responses such as cell adhesion, vasoconstriction, platelet aggregation, angiogenesis, inflammatory gene expression, and apoptosis. During pathologic states, altered redox balance can cause vascular cell dysfunction and affect the equilibrium between procoagulant and anticoagulant systems, contributing to thrombotic vascular disease. This review focuses on the emerging role of a specific reversible redox reaction, protein methionine oxidation, in vascular disease and thrombosis. A growing number of cardiovascular and hemostatic proteins are recognized to undergo reversible methionine oxidation, in which methionine residues are posttranslationally oxidized to methionine sulfoxide. Protein methionine oxidation can be reversed by the action of stereospecific enzymes known as methionine sulfoxide reductases. Calcium/calmodulin-dependent protein kinase II is a prototypical methionine redox sensor that responds to changes in the intracellular redox state via reversible oxidation of tandem methionine residues in its regulatory domain. Several other proteins with oxidation-sensitive methionine residues, including apolipoprotein A-I, thrombomodulin, and von Willebrand factor, may contribute to vascular disease and thrombosis.
Collapse
|
579
|
Coenzyme Q10 inhibits the aging of mesenchymal stem cells induced by D-galactose through Akt/mTOR signaling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:867293. [PMID: 25789082 PMCID: PMC4348608 DOI: 10.1155/2015/867293] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 01/24/2015] [Accepted: 02/02/2015] [Indexed: 12/14/2022]
Abstract
Increasing evidences indicate that reactive oxygen species are the main factor promoting stem cell aging. Recent studies have demonstrated that coenzyme Q10 (CoQ10) plays a positive role in organ and cellular aging. However, the potential for CoQ10 to protect stem cell aging has not been fully evaluated, and the mechanisms of cell senescence inhibited by CoQ10 are still poorly understood. Our previous study had indicated that D-galactose (D-gal) can remarkably induce mesenchymal stem cell (MSC) aging through promoting intracellular ROS generation. In this study, we showed that CoQ10 could significantly inhibit MSC aging induced by D-gal. Moreover, in the CoQ10 group, the expression of p-Akt and p-mTOR was clearly reduced compared with that in the D-gal group. However, after Akt activating by CA-Akt plasmid, the senescence-cell number in the CoQ10 group was significantly higher than that in the control group. These results indicated that CoQ10 could inhibit D-gal-induced MSC aging through the Akt/mTOR signaling.
Collapse
|
580
|
Ge C, Wang H, Zhang B, Yao J, Li X, Feng W, Zhou P, Wang Y, Fang J. A thiol–thiosulfonate reaction providing a novel strategy for turn-on thiol sensing. Chem Commun (Camb) 2015; 51:14913-6. [DOI: 10.1039/c5cc05390k] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A thiosulfonate scaffold was applied to design selective and turn-on thiol probes for the first time.
Collapse
Affiliation(s)
- Chunpo Ge
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Hao Wang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Baoxin Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Juan Yao
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Xinming Li
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Weimin Feng
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Panpan Zhou
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Yawen Wang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| | - Jianguo Fang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- China
| |
Collapse
|