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Irikura R, Nishizawa H, Nakajima K, Yamanaka M, Chen G, Tanaka K, Onodera M, Matsumoto M, Igarashi K. Ferroptosis model system by the re-expression of BACH1. J Biochem 2023; 174:239-252. [PMID: 37094356 DOI: 10.1093/jb/mvad036] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 04/19/2023] [Accepted: 04/19/2023] [Indexed: 04/26/2023] Open
Abstract
Ferroptosis is a regulated cell death induced by iron-dependent lipid peroxidation. The heme-responsive transcription factor BTB and CNC homology 1 (BACH1) promotes ferroptosis by repressing the transcription of genes involved in glutathione (GSH) synthesis and intracellular labile iron metabolism, which are key regulatory pathways in ferroptosis. We found that BACH1 re-expression in Bach1-/- immortalized mouse embryonic fibroblasts (iMEFs) can induce ferroptosis upon 2-mercaptoethanol removal, without any ferroptosis inducers. In these iMEFs, GSH synthesis was reduced, and intracellular labile iron levels were increased upon BACH1 re-expression. We used this system to investigate whether the major ferroptosis regulators glutathione peroxidase 4 (Gpx4) and apoptosis-inducing factor mitochondria-associated 2 (Aifm2), the gene for ferroptosis suppressor protein 1, are target genes of BACH1. Neither Gpx4 nor Aifm2 was regulated by BACH1 in the iMEFs. However, we found that BACH1 represses AIFM2 transcription in human pancreatic cancer cells. These results suggest that the ferroptosis regulators targeted by BACH1 may vary across different cell types and animal species. Furthermore, we confirmed that the ferroptosis induced by BACH1 re-expression exhibited a propagating effect. BACH1 re-expression represents a new strategy for inducing ferroptosis after GPX4 or system Xc- suppression and is expected to contribute to future ferroptosis research.
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Key Words
- BACH1 Abbreviations: AIFM2, apoptosis-inducing factor mitochondria-associated 2; ANOVA, analysis of variance; BACH1, BTB and CNC homology 1; Bach1−/− mice, Bach1 knockout mice; BTB, Broad complex, Tramtrack, Bric-a-brac domain; bZIP, basic leucine zipper; ChIP-seq, chromatin immunoprecipitation sequencing; CNC, Cap‘n’Collar region; DAPI, 4′,6-diamidino-2-phenylindole; DFX, deferasirox; DMSO, dimethyl sulfoxide; EMT, epithelial–mesenchymal transition; Ferr-1, ferrostatin-1; FINs, ferroptosis inducers; FSP1, Ferroptosis suppressor protein 1; Fth1, ferritin heavy chain 1; Ftl, ferritin light chain; GCL, glutamate-cysteine ligase; Gclc, GCL catalytic subunit; Gclm, GCL modifier subunit; GEO, Gene Expression Omnibus; GPX4, glutathione peroxidase 4; GSH, glutathione; HO-1 (Hmox1), heme oxygenase 1; iMEFs, immortalized MEFs; KuO, Kusabira Orange; MAFK, musculoaponeurotic fibrosarcoma oncogene homolog bZIP transcription factor K; mBACH1, Bach1 gene of Mus musculus; 2-ME, 2-mercaptoethanol; MEFs, mouse embryonic fibroblasts; NRF2, nuclear factor-erythroid 2-related factor 2; NSA, necrosulfonamide; PDAC, pancreatic ductal adenocarcinoma; PI, Propidium iodide; Ptgs2, prostaglandin-endoperoxide synthase 2; RSL3, (1S,3R)-RSL3; Slc40a1, solute carrier family 40 member 1; Slc7a11, solute carrier family 7 member 11; TFRC, transferrin receptor 1; Z-VAD.FMK, Benzyloxycarbonyl-Val-Ala-Asp (OMe) fluoromethylketone
- extracellular signal
- ferroptosis
- fibroblasts
- transcription
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Affiliation(s)
- Riko Irikura
- Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Hironari Nishizawa
- Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Kazuma Nakajima
- Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Mie Yamanaka
- Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
- Gladstone Institute of Neurological Disease, Gladstone Institutes, 1650 Owens Street, San Francisco, CA 94158, USA
| | - Guan Chen
- Department of Molecular Oncology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Kozo Tanaka
- Department of Molecular Oncology, Institute of Development, Aging and Cancer (IDAC), Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Masafumi Onodera
- Gene & Cell Therapy Promotion Center, National Center for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | - Mitsuyo Matsumoto
- Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
- Center for Regulatory Epigenome and Diseases, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Kazuhiko Igarashi
- Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
- Center for Regulatory Epigenome and Diseases, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
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Kato S. Lactoferrin inhibits the proliferation of IMR‑32 neuroblastoma cells even under X‑rays. MEDICINE INTERNATIONAL 2023; 3:33. [PMID: 37448769 PMCID: PMC10336960 DOI: 10.3892/mi.2023.93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023]
Abstract
Neuroblastoma is a typical solid tumor common in childhood. The present study investigated the inhibitory effects of lactoferrin on the proliferation of IMR-32 neuroblastoma cells, including under X-ray irradiation. In controlled in vitro assays, it was found that lactoferrin inhibited cell proliferation, accompanied by cell membrane disruption. Furthermore, intracellular reactive oxygen species generation increased in IMR-32 cells treated with lactoferrin, causing membrane lipid peroxidation and the leakage of lactate dehydrogenase. The IC50 values for cell proliferation were ~2.0 nM for doxorubicin, 2.7 mM for dibutyryl-cAMP and 45.9 µM for lactoferrin. X-ray irradiation at 1 Gy decreased cell proliferation to ~30%, which was not restored by lactoferrin. In the Fenton reaction system with iron chloride, lactoferrin increased hydroxyl radical (OH·) formation via H2O2, as confirmed by electron spin resonance spectra. On the whole, the findings of the present study indicate that lactoferrin, found abundantly in milk, may help prevent or treat neuroblastoma in infants with modest efficacy, and does not exert a protective effect against X-rays.
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Affiliation(s)
- Shinya Kato
- Radioisotope Experimental Facility, Advanced Science Research Promotion Center, Mie University, Tsu, Mie 514-8507, Japan
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Havaux M. Review of Lipid Biomarkers and Signals of Photooxidative Stress in Plants. Methods Mol Biol 2023; 2642:111-128. [PMID: 36944875 DOI: 10.1007/978-1-0716-3044-0_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
The degree of unsaturation of plant lipids is high, making them sensitive to oxidation. They thus constitute primary targets of reactive oxygen species and oxidative stress. Moreover, the hydroperoxides generated during lipid peroxidation decompose in a variety of secondary products which can propagate oxidative stress or trigger signaling mechanisms. Both primary and secondary products of lipid oxidation are helpful markers of oxidative stress in plants. This chapter describes a number of methods that have been developed to measure those biomarkers and signals, with special emphasis on the monitoring of photooxidative stress. Depending on their characteristics, those lipid markers provide information not only on the oxidation status of plant tissues but also on the origin of lipid peroxidation, the localization of the damage, or the type of reactive oxygen species involved.
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Affiliation(s)
- Michel Havaux
- Aix-Marseille University, CEA, CNRS, UMR7265, Bioscience and Biotechnology Institute of Aix-Marseille, CEA/Cadarache, Saint-Paul-lez-Durance, France.
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Zhao KC, Liu L, Chen XC, Yao YQ, Guo L, Lu Y, Zhao XL, Liu Y. Multiple-Functional Diphosphines: Synthesis, Characterization, and Application to Pd-Catalyzed Alkoxycarbonylation of Alkynes. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kai-Chun Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Lei Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Xiao-Chao Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Yin-Qing Yao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Lin Guo
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Yong Lu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Xiao-Li Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Ye Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
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5
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Fluorescence imaging for visualizing the bioactive molecules of lipid peroxidation within biological systems. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2021.116484] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Xiao X, Tian W, Imran M, Cao H, Zhao J. Controlling the triplet states and their application in external stimuli-responsive triplet-triplet-annihilation photon upconversion: from the perspective of excited state photochemistry. Chem Soc Rev 2021; 50:9686-9714. [PMID: 34263286 DOI: 10.1039/d1cs00162k] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The property of organic light-responsive materials is determined by their electronic excited states to a large extent, for instance, the radiative decay rate constants, redox potentials, and lifetimes. Tuning the excited state properties with external stimuli will lead to versatile functional materials; a representative example is the fluorescence molecular probes, in which the singlet excited states are controlled by the external stimuli, i.e., by interaction with the analytes. In comparison, controlling the triplet excited state with external stimuli has been rarely reported, although it is also crucial for the development of novel materials for targeted photodynamic therapy (PDT) reagents and phosphorescent molecular probes. The reported results show that the principles used in singlet excited state tuning are unable to be simply applied to the triplet excited state. In this review article, we summarized the recent results on controlling the triplet excited states by the external stimuli (chemical or light), and the application of the triplet state tuning in the chemical/light controllable triplet-triplet-annihilation upconversion (TTA UC). We discussed the methods for the control of the triplet states, as well as singlet excited state, for the purpose of controlling the TTA UC. Both successful and unsuccessful methods are discussed. This information is helpful for understanding the photophysical processes in which the triplet excited state is involved, and the development of novel external stimuli-responsive triplet photosensitizers.
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Affiliation(s)
- Xiao Xiao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling-Gong Road, Dalian 116024, P. R. China.
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7
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Kato S, Kuwata K. Pro-/anti-oxidative properties of dopamine on membrane lipid peroxidation upon X-ray irradiation. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2021.109518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Lipid peroxidation and the subsequent cell death transmitting from ferroptotic cells to neighboring cells. Cell Death Dis 2021; 12:332. [PMID: 33782392 PMCID: PMC8007748 DOI: 10.1038/s41419-021-03613-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 03/03/2021] [Accepted: 03/08/2021] [Indexed: 02/01/2023]
Abstract
Ferroptosis regulated cell death due to the iron-dependent accumulation of lipid peroxide. Ferroptosis is known to constitute the pathology of ischemic diseases, neurodegenerative diseases, and steatohepatitis and also works as a suppressing mechanism against cancer. However, how ferroptotic cells affect surrounding cells remains elusive. We herein report the transfer phenomenon of lipid peroxidation and cell death from ferroptotic cells to nearby cells that are not exposed to ferroptotic inducers (FINs). While primary mouse embryonic fibroblasts (MEFs) and NIH3T3 cells contained senescence-associated β-galactosidase (SA-β-gal)-positive cells, they were decreased upon induction of ferroptosis with FINs. The SA-β-gal decrease was inhibited by ferroptotic inhibitors and knockdown of Atg7, pointing to the involvement of lipid peroxidation and activated autophagosome formation during ferroptosis. A transfer of cell culture medium of cells treated with FINs, type 1 or 2, caused the reduction in SA-β-gal-positive cells in recipient cells that had not been exposed to FINs. Real-time imaging of Kusabira Orange-marked reporter MEFs cocultured with ferroptotic cells showed the generation of lipid peroxide and deaths of the reporter cells. These results indicate that lipid peroxidation and its aftereffects propagate from ferroptotic cells to surrounding cells, even when the surrounding cells are not exposed to FINs. Ferroptotic cells are not merely dying cells but also work as signal transmitters inducing a chain of further ferroptosis.
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Kumar A, Prasad A, Pospíšil P. Formation of α-tocopherol hydroperoxide and α-tocopheroxyl radical: relevance for photooxidative stress in Arabidopsis. Sci Rep 2020; 10:19646. [PMID: 33184329 PMCID: PMC7665033 DOI: 10.1038/s41598-020-75634-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 10/08/2020] [Indexed: 12/03/2022] Open
Abstract
Tocopherols, lipid-soluble antioxidants play a crucial role in the antioxidant defense system in higher plants. The antioxidant function of α-tocopherol has been widely studied; however, experimental data on the formation of its oxidation products is missing. In this study, we attempt to provide spectroscopic evidence on the detection of oxidation products of α-tocopherol formed by its interaction with singlet oxygen and lipid peroxyl radical. Singlet oxygen was formed using photosensitizer rose bengal and thylakoid membranes isolated from Arabidopsis thaliana. Singlet oxygen reacts with polyunsaturated fatty acid forming lipid hydroperoxide which is oxidized by ferric iron to lipid peroxyl radical. The addition of singlet oxygen to double bond carbon on the chromanol head of α-tocopherol forms α-tocopherol hydroperoxide detected using fluorescent probe swallow-tailed perylene derivative. The decomposition of α-tocopherol hydroperoxide forms α-tocopherol quinone. The hydrogen abstraction from α-tocopherol by lipid peroxyl radical forms α-tocopheroxyl radical detected by electron paramagnetic resonance. Quantification of lipid and protein hydroperoxide from the wild type and tocopherol deficient (vte1) mutant Arabidopsis leaves using a colorimetric ferrous oxidation-xylenol orange assay reveals that α-tocopherol prevents formation of both lipid and protein hydroperoxides at high light. Identification of oxidation products of α-tocopherol might contribute to a better understanding of the protective role of α-tocopherol in the prevention of oxidative damage in higher plants at high light.
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Affiliation(s)
- Aditya Kumar
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Ankush Prasad
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Pavel Pospíšil
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71, Olomouc, Czech Republic.
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10
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Singh P, Sharma P, Kaur N, Mittal LS, Kumar K. Perylene diimides: will they flourish as reaction-based probes? ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:3560-3574. [PMID: 32701085 DOI: 10.1039/d0ay00966k] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Perylene diimides (PDI) are a well-studied class of functional organic dyes, and in recent years, they have been accepted as promising scaffolds for the design of small molecule/polymer-based chromogenic and fluorogenic reaction-based-probes because of their strong absorption combined with high fluorescence quantum yield in organic solvents, low reduction potential, good electron-acceptor properties, and broad color range properties. Undoubtedly, the intrinsically poor solubility of PDI-based derivatives in water greatly hampers their exploitation as reaction-based probes; however, a vast array of functionalizations now offer design strategies that have resulted in >50% solubility of PDI derivatives in water. A chemodosimeter, wherein chemical transformation is achieved by specific reactions, affords naked-eye visibility, fast response time, sensitivity, ratiometric response, and low cost. The present review focuses on the progress of PDI-based chemodosimeters achieved so far since the inception of this member in the rylene diimide family. This comprehensive review may facilitate the development of more powerful chemodosimeters based on PDI for broad and exciting applications in the future.
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Affiliation(s)
- Prabhpreet Singh
- Department of Chemistry, UGC Centre for Advanced Studies, Guru Nanak Dev University, Amritsar 143005, India.
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Kuczynska P, Jemiola-Rzeminska M, Nowicka B, Jakubowska A, Strzalka W, Burda K, Strzalka K. The xanthophyll cycle in diatom Phaeodactylum tricornutum in response to light stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 152:125-137. [PMID: 32416342 DOI: 10.1016/j.plaphy.2020.04.043] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 04/27/2020] [Accepted: 04/30/2020] [Indexed: 05/11/2023]
Abstract
Chosen aspects of the functioning of diadinoxanthin cycle in a model diatom Phaeodactylum tricornutum grown under low light conditions (LL) and under high light conditions (HL), which cause activation of violaxanthin cycle, were examined. Heterogeneity of the kinetics of diadinoxanthin ↔ diatoxanthin conversions regulated by de-epoxidase/epoxidase enzymes was detected. Three different rates of diadinoxanthin de-epoxidation (τ > 20 min, 5 min > τ > 1.5 min and τ ≤ 1 min) were observed. Appearance and contribution of these phases depended on the light conditions and xanthophylls subpopulations in membranes. Moreover, diadinoxanthin de-epoxidation was postulated to occur in darkness and its rate was estimated to be almost two times faster (τ ≈ 14 min) than diatoxanthin-epoxidation in LL- and HL-grown diatoms collected after the dark phase of the photoperiod and exposed to very high light and subsequent darkness. The level of lipid hydroperoxides and the expression of genes encoding xanthophyll cycle enzymes was measured. Our observations suggest that isoforms of these enzymes may participate in carotenoid synthesis or be exclusively involved in xanthophyll conversions. Violaxanthin cycle pigments present in HL-acclimated diatoms change thermodynamic properties of thylakoid membranes. Zeaxanthin is known to localize preferentially in the inner part of the lipid bilayer and diatoxanthin in its outer part. The different localization of these pigments probably decide about their complementary action in protection of the membranes against reactive oxygen species.
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Affiliation(s)
- Paulina Kuczynska
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland
| | - Malgorzata Jemiola-Rzeminska
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland; Malopolska Centre of Biotechnology, Jagiellonian University, Gronostajowa 7A, 30-387, Krakow, Poland
| | - Beatrycze Nowicka
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland.
| | - Agata Jakubowska
- Department of Plant Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland
| | - Wojciech Strzalka
- Department of Plant Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland
| | - Kvetoslava Burda
- Faculty of Physics and Applied Computer Science, University of Science and Technology, Reymonta 19, 30-059, Krakow, Poland
| | - Kazimierz Strzalka
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland; Malopolska Centre of Biotechnology, Jagiellonian University, Gronostajowa 7A, 30-387, Krakow, Poland
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Prasad A, Sedlářová M, Balukova A, Rác M, Pospíšil P. Reactive Oxygen Species as a Response to Wounding: In Vivo Imaging in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2020; 10:1660. [PMID: 31998345 PMCID: PMC6962234 DOI: 10.3389/fpls.2019.01660] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 11/25/2019] [Indexed: 05/29/2023]
Abstract
Mechanical injury or wounding in plants can be attributed to abiotic or/and biotic causes. Subsequent defense responses are either local, i.e. within or in the close vicinity of affected tissue, or systemic, i.e. at distant plant organs. Stress stimuli activate a plethora of early and late reactions, from electric signals induced within seconds upon injury, oxidative burst within minutes, and slightly slower changes in hormone levels or expression of defense-related genes, to later cell wall reinforcement by polysaccharides deposition, or accumulation of proteinase inhibitors and hydrolytic enzymes. In the current study, we focused on the production of reactive oxygen species (ROS) in wounded Arabidopsis leaves. Based on fluorescence imaging, we provide experimental evidence that ROS [superoxide anion radical (O2 •-) and singlet oxygen (1O2)] are produced following wounding. As a consequence, oxidation of biomolecules is induced, predominantly of polyunsaturated fatty acid, which leads to the formation of reactive intermediate products and electronically excited species.
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Affiliation(s)
- Ankush Prasad
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czechia
| | - Michaela Sedlářová
- Department of Botany, Faculty of Science, Palacký University, Olomouc, Czechia
| | - Anastasiia Balukova
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czechia
| | - Marek Rác
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czechia
| | - Pavel Pospíšil
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czechia
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Ferretti U, Ciura J, Ksas B, Rác M, Sedlářová M, Kruk J, Havaux M, Pospíšil P. Chemical quenching of singlet oxygen by plastoquinols and their oxidation products in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 95:848-861. [PMID: 29901834 DOI: 10.1111/tpj.13993] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 03/29/2018] [Accepted: 05/29/2018] [Indexed: 05/27/2023]
Abstract
Prenylquinols (tocochromanols and plastoquinols) serve as efficient physical and chemical quenchers of singlet oxygen (1 O2 ) formed during high light stress in higher plants. Although quenching of 1 O2 by prenylquinols has been previously studied, direct evidence for chemical quenching of 1 O2 by plastoquinols and their oxidation products is limited in vivo. In the present study, the role of plastoquinol-9 (PQH2 -9) in chemical quenching of 1 O2 was studied in Arabidopsis thaliana lines overexpressing the SOLANESYL DIPHOSPHATE SYNTHASE 1 gene (SPS1oex) involved in PQH2 -9 and plastochromanol-8 biosynthesis. In this work, direct evidence for chemical quenching of 1 O2 by plastoquinols and their oxidation products is presented, which is obtained by microscopic techniques in vivo. Chemical quenching of 1 O2 was associated with consumption of PQH2 -9 and formation of its various oxidized forms. Oxidation of PQH2 -9 by 1 O2 leads to plastoquinone-9 (PQ-9), which is subsequently oxidized to hydroxyplastoquinone-9 [PQ(OH)-9]. We provide here evidence that oxidation of PQ(OH)-9 by 1 O2 results in the formation of trihydroxyplastoquinone-9 [PQ(OH)3 -9]. It is concluded here that PQH2 -9 serves as an efficient 1 O2 chemical quencher in Arabidopsis, and PQ(OH)3 -9 can be considered as a natural product of 1 O2 reaction with PQ(OH)-9. The understanding of the mechanisms underlying 1 O2 chemical quenching provides information on the role of plastoquinols and their oxidation products in the response of plants to photooxidative stress.
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Affiliation(s)
- Ursula Ferretti
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
| | - Joanna Ciura
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, 30-387, Poland
| | - Brigitte Ksas
- Laboratoire d'Écophysiologie Moléculaire des Plantes, CEA, CNRS, UMR 7265 BVME, Aix-Marseille Université, CEA/Cadarache, Saint-Paul-lez-Durance, F-13108, France
| | - Marek Rác
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
| | - Michaela Sedlářová
- Department of Botany, Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
| | - Jerzy Kruk
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, 30-387, Poland
| | - Michel Havaux
- Laboratoire d'Écophysiologie Moléculaire des Plantes, CEA, CNRS, UMR 7265 BVME, Aix-Marseille Université, CEA/Cadarache, Saint-Paul-lez-Durance, F-13108, France
| | - Pavel Pospíšil
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
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14
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Mishra R, Mushtaq Z, Regar R, Mallik B, Kumar V, Sankar J. Selective Imaging of Lipids in Adipocytes
by Using an Imidazolyl Derivative of Perylene Bisimide. Chembiochem 2018; 19:1386-1390. [DOI: 10.1002/cbic.201800134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Ruchika Mishra
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
| | - Zeeshan Mushtaq
- Department of Biological Sciences; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
| | - Ramprasad Regar
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
| | - Bhagaban Mallik
- Department of Biological Sciences; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
| | - Vimlesh Kumar
- Department of Biological Sciences; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
| | - Jeyaraman Sankar
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road Bhopal 462066 India
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15
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Kumar K, Bhargava G, Kumar S, Singh P. Controllable supramolecular self-assemblies (rods–wires–spheres) and ICT/PET based perylene probes for palladium detection in solution and the solid state. NEW J CHEM 2018. [DOI: 10.1039/c7nj03751a] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
AC-PDIshows solvent dependent self-assembly into nanowires, rods and spheres. It could be used for detection of Pd0in 50% HEPES buffer–DMSO (39 nM, UV-Vis; 45 nM, fluorescence) and the solid state (0.58 pg cm−2).
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Affiliation(s)
- Kapil Kumar
- Department of Chemistry
- UGC Centre for Advanced Studies
- Guru Nanak Dev University
- Amritsar 143 005
- India
| | - Gaurav Bhargava
- Department of Chemical Sciences
- IKG Punjab Technical University
- Kapurthala-144601
- India
| | - Subodh Kumar
- Department of Chemistry
- UGC Centre for Advanced Studies
- Guru Nanak Dev University
- Amritsar 143 005
- India
| | - Prabhpreet Singh
- Department of Chemistry
- UGC Centre for Advanced Studies
- Guru Nanak Dev University
- Amritsar 143 005
- India
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16
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Pathak V, Prasad A, Pospíšil P. Formation of singlet oxygen by decomposition of protein hydroperoxide in photosystem II. PLoS One 2017; 12:e0181732. [PMID: 28732060 PMCID: PMC5521840 DOI: 10.1371/journal.pone.0181732] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 07/06/2017] [Indexed: 11/18/2022] Open
Abstract
Singlet oxygen (1O2) is formed by triplet-triplet energy transfer from triplet chlorophyll to O2 via Type II photosensitization reaction in photosystem II (PSII). Formation of triplet chlorophyll is associated with the change in spin state of the excited electron and recombination of triplet radical pair in the PSII antenna complex and reaction center, respectively. Here, we have provided evidence for the formation of 1O2 by decomposition of protein hydroperoxide in PSII membranes deprived of Mn4O5Ca complex. Protein hydroperoxide is formed by protein oxidation initiated by highly oxidizing chlorophyll cation radical and hydroxyl radical formed by Type I photosensitization reaction. Under highly oxidizing conditions, protein hydroperoxide is oxidized to protein peroxyl radical which either cyclizes to dioxetane or recombines with another protein peroxyl radical to tetroxide. These highly unstable intermediates decompose to triplet carbonyls which transfer energy to O2 forming 1O2. Data presented in this study show for the first time that 1O2 is formed by decomposition of protein hydroperoxide in PSII membranes deprived of Mn4O5Ca complex.
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Affiliation(s)
- Vinay Pathak
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | - Ankush Prasad
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | - Pavel Pospíšil
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czech Republic
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17
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Kagan VE, Mao G, Qu F, Angeli JPF, Doll S, Croix CS, Dar HH, Liu B, Tyurin VA, Ritov VB, Kapralov AA, Amoscato AA, Jiang J, Anthonymuthu T, Mohammadyani D, Yang Q, Proneth B, Klein-Seetharaman J, Watkins S, Bahar I, Greenberger J, Mallampalli RK, Stockwell BR, Tyurina YY, Conrad M, Bayır H. Oxidized arachidonic and adrenic PEs navigate cells to ferroptosis. Nat Chem Biol 2017; 13:81-90. [PMID: 27842066 PMCID: PMC5506843 DOI: 10.1038/nchembio.2238] [Citation(s) in RCA: 1567] [Impact Index Per Article: 223.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 10/03/2016] [Indexed: 02/07/2023]
Abstract
Enigmatic lipid peroxidation products have been claimed as the proximate executioners of ferroptosis-a specialized death program triggered by insufficiency of glutathione peroxidase 4 (GPX4). Using quantitative redox lipidomics, reverse genetics, bioinformatics and systems biology, we discovered that ferroptosis involves a highly organized oxygenation center, wherein oxidation in endoplasmic-reticulum-associated compartments occurs on only one class of phospholipids (phosphatidylethanolamines (PEs)) and is specific toward two fatty acyls-arachidonoyl (AA) and adrenoyl (AdA). Suppression of AA or AdA esterification into PE by genetic or pharmacological inhibition of acyl-CoA synthase 4 (ACSL4) acts as a specific antiferroptotic rescue pathway. Lipoxygenase (LOX) generates doubly and triply-oxygenated (15-hydroperoxy)-diacylated PE species, which act as death signals, and tocopherols and tocotrienols (vitamin E) suppress LOX and protect against ferroptosis, suggesting a homeostatic physiological role for vitamin E. This oxidative PE death pathway may also represent a target for drug discovery.
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Affiliation(s)
- Valerian E. Kagan
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Germany
- Department of Chemistry, University of Pittsburgh, Germany
- Department of Radiation Oncology, University of Pittsburgh, Germany
| | - Gaowei Mao
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | - Feng Qu
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | | | - Sebastian Doll
- Department of Helmholtz Zentrum München, Institute of Developmental Genetics, Germany
| | | | - Haider Hussain Dar
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | - Bing Liu
- Department of Computational and Systems Biology, University of Pittsburgh, New York
| | - Vladimir A. Tyurin
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | - Vladimir B. Ritov
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | - Alexandr A. Kapralov
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | - Andrew A. Amoscato
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | - Jianfei Jiang
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | - Tamil Anthonymuthu
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | - Dariush Mohammadyani
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | - Qin Yang
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | - Bettina Proneth
- Department of Helmholtz Zentrum München, Institute of Developmental Genetics, Germany
| | | | - Simon Watkins
- Department of Cell Biology, University of Pittsburgh, New York
| | - Ivet Bahar
- Department of Computational and Systems Biology, University of Pittsburgh, New York
| | - Joel Greenberger
- Department of Radiation Oncology, University of Pittsburgh, Germany
| | | | - Brent R. Stockwell
- Department of Biological Sciences and Chemistry, Columbia University, New York
| | - Yulia Y. Tyurina
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
| | - Marcus Conrad
- Department of Helmholtz Zentrum München, Institute of Developmental Genetics, Germany
| | - Hülya Bayır
- Department of Environmental and Occupational Health, University of Pittsburgh, Germany
- Department of Critical Care Medicine, University of Pittsburgh, New York
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18
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Kathayat RS, Yang L, Sattasathuchana T, Zoppi L, Baldridge KK, Linden A, Finney NS. On the Origins of Nonradiative Excited State Relaxation in Aryl Sulfoxides Relevant to Fluorescent Chemosensing. J Am Chem Soc 2016; 138:15889-15895. [PMID: 27809511 DOI: 10.1021/jacs.6b00572] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We provide herein a mechanistic analysis of aryl sulfoxide excited state processes, inspired by our recent report of aryl sulfoxide based fluorescent chemosensors. The use of aryl sulfoxides as reporting elements in chemosensor development is a significant deviation from previous approaches, and thus warrants closer examination. We demonstrate that metal ion binding suppresses nonradiative excited state decay by blocking formation of a previously unrecognized charge transfer excited state, leading to fluorescence enhancement. This charge transfer state derives from the initially formed locally excited state followed by intramolecular charge transfer to form a sulfoxide radical cation/aryl radical anion pair. With the aid of computational studies, we map out ground and excited state potential energy surface details for aryl sulfoxides, and conclude that fluorescence enhancement is almost entirely the result of excited state effects. This work expands previous proposals that excited state pyramidal inversion is the major nonradiative decay pathway for aryl sulfoxides. We show that pyramidal inversion is indeed relevant, but that an additional and dominant nonradiative pathway must also exist. These conclusions have implications for the design of next generation sulfoxide based fluorescent chemosensors.
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Affiliation(s)
- Rahul S Kathayat
- Department of Chemistry, University of Zurich , Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Lijun Yang
- School of Pharmaceutical Science and Technology, Tianjin University , 92 Weijin Road, Nankai District, Tianjin, 300072, China
| | - Tosaporn Sattasathuchana
- Department of Chemistry, University of Zurich , Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Laura Zoppi
- Department of Chemistry, University of Zurich , Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Kim K Baldridge
- Department of Chemistry, University of Zurich , Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.,School of Pharmaceutical Science and Technology, Tianjin University , 92 Weijin Road, Nankai District, Tianjin, 300072, China
| | - Anthony Linden
- Department of Chemistry, University of Zurich , Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Nathaniel S Finney
- Department of Chemistry, University of Zurich , Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.,School of Pharmaceutical Science and Technology, Tianjin University , 92 Weijin Road, Nankai District, Tianjin, 300072, China
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19
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Noctor G, Mhamdi A, Foyer CH. Oxidative stress and antioxidative systems: recipes for successful data collection and interpretation. PLANT, CELL & ENVIRONMENT 2016; 39:1140-60. [PMID: 26864619 DOI: 10.1111/pce.12726] [Citation(s) in RCA: 177] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 01/25/2016] [Accepted: 01/31/2016] [Indexed: 05/18/2023]
Abstract
Oxidative stress and reactive oxygen species (ROS) are common to many fundamental responses of plants. Enormous and ever-growing interest has focused on this research area, leading to an extensive literature that documents the tremendous progress made in recent years. As in other areas of plant biology, advances have been greatly facilitated by developments in genomics-dependent technologies and the application of interdisciplinary techniques that generate information at multiple levels. At the same time, advances in understanding ROS are fundamentally reliant on the use of biochemical and cell biology techniques that are specific to the study of oxidative stress. It is therefore timely to revisit these approaches with the aim of providing a guide to convenient methods and assisting interested researchers in avoiding potential pitfalls. Our critical overview of currently popular methodologies includes a detailed discussion of approaches used to generate oxidative stress, measurements of ROS themselves, determination of major antioxidant metabolites, assays of antioxidative enzymes and marker transcripts for oxidative stress. We consider the applicability of metabolomics, proteomics and transcriptomics approaches and discuss markers such as damage to DNA and RNA. Our discussion of current methodologies is firmly anchored to future technological developments within this popular research field.
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Affiliation(s)
- Graham Noctor
- Institute of Plant Sciences Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Bâtiment 630, 91405, Orsay, France
- Institute of Plant Sciences Paris-Saclay IPS2, Paris Diderot, Sorbonne Paris-Cité, Bâtiment 630, 91405, Orsay, France
| | - Amna Mhamdi
- Institute of Plant Sciences Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Bâtiment 630, 91405, Orsay, France
- Institute of Plant Sciences Paris-Saclay IPS2, Paris Diderot, Sorbonne Paris-Cité, Bâtiment 630, 91405, Orsay, France
- Department of Plant Biotechnology and Bioinformatics, Ghent University, VIB, Department of Plant Systems Biology, Technologie Park 927, B-9052, Ghent, Belgium
| | - Christine H Foyer
- Centre for Plant Sciences, School of Biology and Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK
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20
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Biswas MS, Mano J. Lipid Peroxide-Derived Short-Chain Carbonyls Mediate Hydrogen Peroxide-Induced and Salt-Induced Programmed Cell Death in Plants. PLANT PHYSIOLOGY 2015; 168:885-98. [PMID: 26025050 PMCID: PMC4741343 DOI: 10.1104/pp.115.256834] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 05/24/2015] [Indexed: 05/18/2023]
Abstract
Lipid peroxide-derived toxic carbonyl compounds (oxylipin carbonyls), produced downstream of reactive oxygen species (ROS), were recently revealed to mediate abiotic stress-induced damage of plants. Here, we investigated how oxylipin carbonyls cause cell death. When tobacco (Nicotiana tabacum) Bright Yellow-2 (BY-2) cells were exposed to hydrogen peroxide, several species of short-chain oxylipin carbonyls [i.e. 4-hydroxy-(E)-2-nonenal and acrolein] accumulated and the cells underwent programmed cell death (PCD), as judged based on DNA fragmentation, an increase in terminal deoxynucleotidyl transferase dUTP nick end labeling-positive nuclei, and cytoplasm retraction. These oxylipin carbonyls caused PCD in BY-2 cells and roots of tobacco and Arabidopsis (Arabidopsis thaliana). To test the possibility that oxylipin carbonyls mediate an oxidative signal to cause PCD, we performed pharmacological and genetic experiments. Carnosine and hydralazine, having distinct chemistry for scavenging carbonyls, significantly suppressed the increase in oxylipin carbonyls and blocked PCD in BY-2 cells and Arabidopsis roots, but they did not affect the levels of ROS and lipid peroxides. A transgenic tobacco line that overproduces 2-alkenal reductase, an Arabidopsis enzyme to detoxify α,β-unsaturated carbonyls, suffered less PCD in root epidermis after hydrogen peroxide or salt treatment than did the wild type, whereas the ROS level increases due to the stress treatments were not different between the lines. From these results, we conclude that oxylipin carbonyls are involved in the PCD process in oxidatively stressed cells. Our comparison of the ability of distinct carbonyls to induce PCD in BY-2 cells revealed that acrolein and 4-hydroxy-(E)-2-nonenal are the most potent carbonyls. The physiological relevance and possible mechanisms of the carbonyl-induced PCD are discussed.
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Affiliation(s)
- Md Sanaullah Biswas
- United Graduate School of Agriculture, Tottori University, Tottori 680-8550, Japan (M.S.B., J.M.); andScience Research Center (J.M.) and Graduate School of Agriculture (J.M.), Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Jun'ichi Mano
- United Graduate School of Agriculture, Tottori University, Tottori 680-8550, Japan (M.S.B., J.M.); andScience Research Center (J.M.) and Graduate School of Agriculture (J.M.), Yamaguchi University, Yamaguchi 753-8515, Japan
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21
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Ali M, Dondaine L, Adolle A, Sampaio C, Chotard F, Richard P, Denat F, Bettaieb A, Le Gendre P, Laurens V, Goze C, Paul C, Bodio E. Anticancer Agents: Does a Phosphonium Behave Like a Gold(I) Phosphine Complex? Let a “Smart” Probe Answer! J Med Chem 2015; 58:4521-8. [DOI: 10.1021/acs.jmedchem.5b00480] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Moussa Ali
- Institut de Chimie Moléculaire de l’Université de Bourgogne, ICMUB UMR CNRS 6302, 9 Avenue Alain Savary, BP 47870, Dijon Cedex, 21078, France
| | - Lucile Dondaine
- École Pratique des Hautes Études, Paris, F-75014, France
- EA7269 EPHE-University of Burgundy, University of Burgundy, Dijon, F-21000, France
| | - Anais Adolle
- École Pratique des Hautes Études, Paris, F-75014, France
- EA7269 EPHE-University of Burgundy, University of Burgundy, Dijon, F-21000, France
| | - Carla Sampaio
- École Pratique des Hautes Études, Paris, F-75014, France
- EA7269 EPHE-University of Burgundy, University of Burgundy, Dijon, F-21000, France
| | - Florian Chotard
- Institut de Chimie Moléculaire de l’Université de Bourgogne, ICMUB UMR CNRS 6302, 9 Avenue Alain Savary, BP 47870, Dijon Cedex, 21078, France
| | - Philippe Richard
- Institut de Chimie Moléculaire de l’Université de Bourgogne, ICMUB UMR CNRS 6302, 9 Avenue Alain Savary, BP 47870, Dijon Cedex, 21078, France
| | - Franck Denat
- Institut de Chimie Moléculaire de l’Université de Bourgogne, ICMUB UMR CNRS 6302, 9 Avenue Alain Savary, BP 47870, Dijon Cedex, 21078, France
| | - Ali Bettaieb
- École Pratique des Hautes Études, Paris, F-75014, France
- EA7269 EPHE-University of Burgundy, University of Burgundy, Dijon, F-21000, France
| | - Pierre Le Gendre
- Institut de Chimie Moléculaire de l’Université de Bourgogne, ICMUB UMR CNRS 6302, 9 Avenue Alain Savary, BP 47870, Dijon Cedex, 21078, France
| | - Véronique Laurens
- École Pratique des Hautes Études, Paris, F-75014, France
- EA7269 EPHE-University of Burgundy, University of Burgundy, Dijon, F-21000, France
| | - Christine Goze
- Institut de Chimie Moléculaire de l’Université de Bourgogne, ICMUB UMR CNRS 6302, 9 Avenue Alain Savary, BP 47870, Dijon Cedex, 21078, France
| | - Catherine Paul
- École Pratique des Hautes Études, Paris, F-75014, France
- EA7269 EPHE-University of Burgundy, University of Burgundy, Dijon, F-21000, France
| | - Ewen Bodio
- Institut de Chimie Moléculaire de l’Université de Bourgogne, ICMUB UMR CNRS 6302, 9 Avenue Alain Savary, BP 47870, Dijon Cedex, 21078, France
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22
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Li B, Pratt DA. Methods for determining the efficacy of radical-trapping antioxidants. Free Radic Biol Med 2015; 82:187-202. [PMID: 25660993 DOI: 10.1016/j.freeradbiomed.2015.01.020] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/20/2015] [Accepted: 01/22/2015] [Indexed: 01/10/2023]
Abstract
Hydrocarbon autoxidation is the free radical chain reaction primarily responsible for the oxidative degradation of organic materials, including those that make up cells, tissues, and organs. The identification of compounds that slow this process (antioxidants) and the quantitation of their efficacies have long been goals of academic and industrial researchers. Antioxidants are generally divided into two types: preventive and radical-trapping (also commonly referred to as chain-breaking). Preventive antioxidants slow the rate of initiation of autoxidation, whereas radical-trapping antioxidants slow the rate of propagation by reacting with chain-propagating peroxyl radicals. The purpose of this review is to provide a comprehensive overview of different approaches to measure the kinetics of the reactions of radical-trapping antioxidants with peroxyl radicals, and their use to study the inhibition of hydrocarbon (lipid) autoxidation in homogeneous solution, as well as biphasic media (lipid bilayers) and cell culture. Direct and indirect approaches are presented and advantages and disadvantages of each are discussed in order to facilitate method selection for investigators seeking to address particular questions in this immensely popular field.
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Affiliation(s)
- Bo Li
- Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Derek A Pratt
- Department of Chemistry, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada.
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23
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Fluorinated perylene diimides: synthesis, electrochemical–photophysical properties, and cellular imaging. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.112] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Robb MJ, Newton B, Fors BP, Hawker CJ. One-Step Synthesis of Unsymmetrical N-Alkyl-N′-aryl Perylene Diimides. J Org Chem 2014; 79:6360-5. [DOI: 10.1021/jo500945k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Maxwell J. Robb
- Department of Chemistry
and Biochemistry,
Materials Department, and Materials Research Laboratory, University of California, Santa
Barbara, California 93106, United States
| | - Brandon Newton
- Department of Chemistry
and Biochemistry,
Materials Department, and Materials Research Laboratory, University of California, Santa
Barbara, California 93106, United States
| | - Brett P. Fors
- Department of Chemistry
and Biochemistry,
Materials Department, and Materials Research Laboratory, University of California, Santa
Barbara, California 93106, United States
| | - Craig J. Hawker
- Department of Chemistry
and Biochemistry,
Materials Department, and Materials Research Laboratory, University of California, Santa
Barbara, California 93106, United States
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25
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Lin Y, Chapman R, Stevens MM. Label-free multimodal protease detection based on protein/perylene dye coassembly and enzyme-triggered disassembly. Anal Chem 2014; 86:6410-7. [PMID: 24914622 DOI: 10.1021/ac500777r] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The development of novel assays for protease sensing plays an important role in clinical diagnostics and therapeutics. Herein, we report a supramolecular platform for label-free protease detection, based on protein/dye self-assembly and enzyme-triggered disassembly. In a typical case, coassembly of protamine sulfate and perylene dye via electrostatic attractions and π-π interactions caused significant colorimetric and fluorescent responses. Subsequent addition of trypsin was found to cleave the amide bonds of protein, triggering the dissociation of protein/dye aggregates and the release of perylene dyes. The enzyme-triggered disassembly was transduced into multiple readouts including absorption, fluorescence, and polarization, which were exploited for trypsin detection and inhibitor testing. This assay was also used for turn-on fluorescence detection of cathepsin B, an enzyme known to be overexpressed in mammalian cancer cells. The integration of supramolecular self-assembly into enzyme detection in this work has provided a novel label-free biosensing platform which is highly sensitive with multimodal readouts. The relative simplicity of the approach avoids the need for time-consuming substrate synthesis, and is also amenable to naked eye detection.
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Affiliation(s)
- Yiyang Lin
- Department of Materials, Department of Bioengineering, and Institute for Biomedical Engineering, Imperial College London , Exhibition Road, London SW7 2AZ, United Kingdom
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26
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Wang Y, Zhang L, Zhang G, Wu Y, Wu S, Yu J, Wang L. A new colorimetric and fluorescent bifunctional probe for Cu2+ and F− ions based on perylene bisimide derivatives. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.137] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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27
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Xue M, Li J, Peng J, Bai Y, Zhang G, Xiao W, Lai G. Effect of triarylphosphane ligands on the rhodium-catalyzed hydrosilylation of alkene. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3092] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Mei Xue
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 310012 China
| | - Jiayun Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 310012 China
| | - Jiajian Peng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 310012 China
| | - Ying Bai
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 310012 China
| | - Guodong Zhang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 310012 China
| | - Wenjun Xiao
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 310012 China
| | - Guoqiao Lai
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 310012 China
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28
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Tsuru H, Shibaguchi H, Kuroki M, Yamashita Y, Kuroki M. Tumor growth inhibition by sonodynamic therapy using a novel sonosensitizer. Free Radic Biol Med 2012; 53:464-72. [PMID: 22588110 DOI: 10.1016/j.freeradbiomed.2012.04.025] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 03/05/2012] [Accepted: 04/21/2012] [Indexed: 12/26/2022]
Abstract
Sonodynamic therapy (SDT) with low-intensity ultrasound combined with a sonosensitizer may be a promising approach to cancer therapy. Use of ultrasound has the advantage of being noninvasive, with deep-penetration properties, and convenient because of the low or no sensitivity of sonosensitizers to light. In this study, SDT with a novel sonosensitizer (a porphyrin derivative) was evaluated in vitro and in vivo. Ultrasound irradiation with a sonosensitizer elicited potent sonotoxicity in vitro without the danger of phototoxicity. The sonotoxic effect was mediated by reactive oxygen species (ROS) and was reduced by ROS scavengers. Cell membrane lipid peroxidation increased significantly just after ultrasound irradiation with a sonosensitizer, but there was no increase in apoptosis. In an in vivo mouse xenograft model, SDT with a sonosensitizer markedly inhibited tumor cell growth. The skin hypersensitivity after light exposure was not observed in a sonosensitizer-treatment group, consistent with the in vitro findings. These results suggest that ROS generated by SDT with a sensitizer can damage tumor cells, resulting in necrosis and prevention of tumor growth. This noninvasive treatment with no adverse effects such as skin sensitivity is therefore promising for therapy of cancers located deep within patients.
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Affiliation(s)
- Hirofumi Tsuru
- Department of Biochemistry, Faculty of Medicine, Fukuoka University, Jonan-ku, Fukuoka, Japan
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29
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Shinohara N, Tsuduki T, Ito J, Honma T, Kijima R, Sugawara S, Arai T, Yamasaki M, Ikezaki A, Yokoyama M, Nishiyama K, Nakagawa K, Miyazawa T, Ikeda I. Jacaric acid, a linolenic acid isomer with a conjugated triene system, has a strong antitumor effect in vitro and in vivo. Biochim Biophys Acta Mol Cell Biol Lipids 2012; 1821:980-8. [PMID: 22521763 DOI: 10.1016/j.bbalip.2012.04.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 03/05/2012] [Accepted: 04/02/2012] [Indexed: 10/28/2022]
Abstract
In this study, we compared the cytotoxic effects of natural conjugated linolenic acids (CLnAs) on human adenocarcinoma cells (DLD-1) in vitro, with the goal of finding CLnA isomers with strong cytotoxic effects. The antitumor effect of the CLnA with the strongest cytotoxic effect was then examined in mice. The results showed that all CLnA isomers have strong cytotoxic effects on DLD-1 cells, with jacaric acid (JA) having the strongest effect. Examination of the mechanism of cell death showed that CLnAs induce apoptosis in DLD-1 cells via lipid peroxidation. The intracellular levels of incorporated CLnAs were measured to examine the reason for differences in cytotoxic effects. These results showed that JA was taken into cells efficiently. Collectively, these results suggest that the cytotoxic effect of CLnAs is dependent on intracellular incorporation and induction of apoptosis via lipid peroxidation. JA also had a strong preventive antitumor effect in vivo in nude mice into which DLD-1 cells were transplanted. These results suggest that JA can be used as a dietary constituent for prevention of cancer.
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Affiliation(s)
- Nahoko Shinohara
- Laboratory of Food and Biomolecular Science, Graduate School of Agriculture, Tohoku University, Japan
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30
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Sun J, Wang M, Xu P, Zhang S, Shi Z. Synthesis of Water-Soluble Perylene Dicarboximide Derivatives Containing Pyridine Oxide Groups. SYNTHETIC COMMUN 2012. [DOI: 10.1080/00397911.2010.540731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Juanjuan Sun
- a Department of Chemistry , Shandong Normal University , Jinan , P. R. China
| | - Ming Wang
- a Department of Chemistry , Shandong Normal University , Jinan , P. R. China
| | - Ping Xu
- a Department of Chemistry , Shandong Normal University , Jinan , P. R. China
| | - Shuai Zhang
- a Department of Chemistry , Shandong Normal University , Jinan , P. R. China
| | - Zhiqiang Shi
- a Department of Chemistry , Shandong Normal University , Jinan , P. R. China
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31
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Hanthorn JJ, Haidasz E, Gebhardt P, Pratt DA. A versatile fluorescence approach to kinetic studies of hydrocarbon autoxidations and their inhibition by radical-trapping antioxidants. Chem Commun (Camb) 2012; 48:10141-3. [DOI: 10.1039/c2cc35214a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Yamanaka K, Saito Y, Sakiyama J, Ohuchi Y, Oseto F, Noguchi N. A novel fluorescent probe with high sensitivity and selective detection of lipid hydroperoxides in cells. RSC Adv 2012. [DOI: 10.1039/c2ra20816d] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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33
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Khorobrykh SA, Khorobrykh AA, Yanykin DV, Ivanov BN, Klimov VV, Mano J. Photoproduction of Catalase-Insensitive Peroxides on the Donor Side of Manganese-Depleted Photosystem II: Evidence with a Specific Fluorescent Probe. Biochemistry 2011; 50:10658-65. [DOI: 10.1021/bi200945v] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Sergey A. Khorobrykh
- Institute
of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
- Science Research Center, Yamaguchi University, Yoshida 1677-1, Yamaguchi 753-8515, Japan
| | - Andrei A. Khorobrykh
- Institute
of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
| | - Denis V. Yanykin
- Institute
of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
| | - Boris N. Ivanov
- Institute
of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
| | - Vyacheslav V. Klimov
- Institute
of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
| | - Jun’ichi Mano
- Science Research Center, Yamaguchi University, Yoshida 1677-1, Yamaguchi 753-8515, Japan
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35
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Perylene bisimide as a versatile fluorescent tool for environmental and biological analysis: A review. Talanta 2011; 85:1233-7. [DOI: 10.1016/j.talanta.2011.06.010] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2011] [Revised: 06/06/2011] [Accepted: 06/07/2011] [Indexed: 11/19/2022]
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36
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Sato SB, Sato S, Kawamoto J, Kurihara T. Differential roles of internal and terminal double bonds in docosahexaenoic acid: Comparative study of cytotoxicity of polyunsaturated fatty acids to HT-29 human colorectal tumor cell line. Prostaglandins Leukot Essent Fatty Acids 2011; 84:31-7. [PMID: 20952172 DOI: 10.1016/j.plefa.2010.09.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2010] [Revised: 09/27/2010] [Accepted: 09/28/2010] [Indexed: 10/18/2022]
Abstract
The role of the double bonds in docosahexaenoic acid (22:6(Δ4,7,10,13,16,19); DHA) in cytotoxic lipid peroxidation was studied in a superoxide dismutase-defective human colorectal tumor cell line, HT-29. In a conventional culture, DHA and other polyunsaturated fatty acids (PUFAs) were found to induce acute lipid peroxidation and subsequent cell death. PUFAs that lack one or both the terminal double bonds (Δ19 and Δ4) but share Δ7,10,13,16 such as 22:5(Δ7,10,13,16,19), 22:5(Δ4,7,10,13,16), and 22:4(Δ7,10,13,16) were more effective than DHA. Lipid peroxidation and cell death were completely inhibited, except by 22:4(Δ7,10,13,16) when radical-mediated reactions were suppressed by culturing cells in 2% O(2) in the presence of vitamin E. DHA and C22:5 PUFAs but not 22:4(Δ7,10,13,16) were efficiently incorporated in phosphatidylinositol, regardless of the culturing conditions. These and other results suggested that the internal unsaturations Δ7,10,13,16 were sensitive to lipid peroxidation, whereas the terminal ones Δ19 and Δ4 appeared to be involved in assimilation into phospholipids.
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Affiliation(s)
- Satoshi B Sato
- Research Center for Low Temperature and Material Sciences, Kyoto University, Kyoto 606-8501, Japan.
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Ikemura M, Nishikawa M, Hyoudou K, Kobayashi Y, Yamashita F, Hashida M. Improvement of Insulin Resistance by Removal of Systemic Hydrogen Peroxide by PEGylated Catalase in Obese Mice. Mol Pharm 2010; 7:2069-76. [DOI: 10.1021/mp100110c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Mai Ikemura
- Department of Drug Delivery Research and Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, and Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Makiya Nishikawa
- Department of Drug Delivery Research and Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, and Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kenji Hyoudou
- Department of Drug Delivery Research and Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, and Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yuki Kobayashi
- Department of Drug Delivery Research and Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, and Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Fumiyoshi Yamashita
- Department of Drug Delivery Research and Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, and Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Mitsuru Hashida
- Department of Drug Delivery Research and Department of Biopharmaceutics and Drug Metabolism, Graduate School of Pharmaceutical Sciences, and Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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38
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Shioji K, Oyama Y, Okuma K, Nakagawa H. Synthesis and properties of fluorescence probe for detection of peroxides in mitochondria. Bioorg Med Chem Lett 2010; 20:3911-5. [PMID: 20605449 DOI: 10.1016/j.bmcl.2010.05.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2009] [Revised: 04/25/2010] [Accepted: 05/08/2010] [Indexed: 10/19/2022]
Abstract
In this study, a new type of fluorescence probe, diphenylpyrenylphosphine-conjugated alkyltriphenylphosphonium iodide which was accumulated in mitochondria, has been synthesized. This probe was detected peroxide in living cell. Comparison of the reactivity toward several peroxide indicated that the probe was existed in mitochondrial membrane. Using this probe, generation of peroxide in mitochondria of living cell was successfully visualized.
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Affiliation(s)
- Kosei Shioji
- Department of Chemistry, Fukuoka University, Jonan-Ku, Japan.
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39
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Soh N. Design and Development of Chemical Fluorescent Probes for the Detection of Biomolecules. BUNSEKI KAGAKU 2010. [DOI: 10.2116/bunsekikagaku.59.771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Nobuaki Soh
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
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40
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Wu X, Yin C, Shi Z, Xu M, Zhang J, Sun J. A novel substitution reaction of perylene bisimides with Ph2PLi at the α-position. NEW J CHEM 2010. [DOI: 10.1039/b9nj00364a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Maki T, Soh N, Fukaminato T, Nakajima H, Nakano K, Imato T. Perylenebisimide-linked nitroxide for the detection of hydroxyl radicals. Anal Chim Acta 2009; 639:78-82. [DOI: 10.1016/j.aca.2009.02.044] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Revised: 02/23/2009] [Accepted: 02/24/2009] [Indexed: 10/21/2022]
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42
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Ito F, Ariyoshi T, Soh N, Kakiuchi T, Inoue T, Imato T, Nagamura T. Dynamic Behavior of a Fluorescent Probe, a Swallow-tailed Perylene Derivative for Detecting Hydroperoxides. CHEM LETT 2008. [DOI: 10.1246/cl.2008.1202] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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43
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Leriche P, Aillerie D, Roquet S, Allain M, Cravino A, Frère P, Roncali J. 3D-conjugated systems based on oligothiophenes and phosphorus nodes. Org Biomol Chem 2008; 6:3202-7. [PMID: 18698481 DOI: 10.1039/b806169f] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
3D-conjugated systems based on oligothiophene segments grafted on a phosphorus or on a phosphine oxide node have been synthesized. Under Stille coupling conditions, bromide terminated thienyl phosphine derivatives undergo a breaking of the phosphorus-carbon bond attributed to a ligand exchange with the Pd catalyst. The electronic properties of the new compounds have been analyzed by UV-vis and fluorescence spectroscopy and cyclic voltammetry.
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Affiliation(s)
- Philippe Leriche
- University of Angers, CNRS, CIMA, 2 Bd Lavoisier, 49045, Angers, France.
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