101
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Trzeciecka A, Klossowski S, Bajor M, Zagozdzon R, Gaj P, Muchowicz A, Malinowska A, Czerwoniec A, Barankiewicz J, Domagala A, Chlebowska J, Prochorec-Sobieszek M, Winiarska M, Ostaszewski R, Gwizdalska I, Golab J, Nowis D, Firczuk M. Dimeric peroxiredoxins are druggable targets in human Burkitt lymphoma. Oncotarget 2016; 7:1717-31. [PMID: 26636537 PMCID: PMC4811492 DOI: 10.18632/oncotarget.6435] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 11/16/2015] [Indexed: 11/25/2022] Open
Abstract
Burkitt lymphoma is a fast-growing tumor derived from germinal center B cells. It is mainly treated with aggressive chemotherapy, therefore novel therapeutic approaches are needed due to treatment toxicity and developing resistance. Disturbance of red-ox homeostasis has recently emerged as an efficient antitumor strategy. Peroxiredoxins (PRDXs) are thioredoxin-family antioxidant enzymes that scavenge cellular peroxides and contribute to red-ox homeostasis. PRDXs are robustly expressed in various malignancies and critically involved in cell proliferation, differentiation and apoptosis. To elucidate potential role of PRDXs in lymphoma, we studied their expression level in B cell-derived primary lymphoma cells as well as in cell lines. We found that PRDX1 and PRDX2 are upregulated in tumor B cells as compared with normal counterparts. Concomitant knockdown of PRDX1 and PRDX2 significantly attenuated the growth rate of lymphoma cells. Furthermore, in human Burkitt lymphoma cell lines, we isolated dimeric 2-cysteine peroxiredoxins as targets for SK053, a novel thiol-specific small-molecule peptidomimetic with antitumor activity. We observed that treatment of lymphoma cells with SK053 triggers formation of covalent PRDX dimers, accumulation of intracellular reactive oxygen species, phosphorylation of ERK1/2 and AKT and leads to cell cycle arrest and apoptosis. Based on site-directed mutagenesis and modeling studies, we propose a mechanism of SK053-mediated PRDX crosslinking, involving double thioalkylation of active site cysteine residues. Altogether, our results suggest that peroxiredoxins are novel therapeutic targets in Burkitt lymphoma and provide the basis for new approaches to the treatment of this disease.
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Affiliation(s)
- Anna Trzeciecka
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Szymon Klossowski
- Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland
| | - Malgorzata Bajor
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Radoslaw Zagozdzon
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland.,Department of Bioinformatics, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Pawel Gaj
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | | | - Agata Malinowska
- Laboratory of Mass Spectrometry, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Anna Czerwoniec
- Bioinformatics Laboratory, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Poznan, Poland
| | - Joanna Barankiewicz
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland.,Department of Hematology and Transfusion Medicine, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Antoni Domagala
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Justyna Chlebowska
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland.,Laboratory of Experimental Medicine, Center of New Technologies, University of Warsaw, Warsaw, Poland
| | - Monika Prochorec-Sobieszek
- Department of Diagnostic Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland.,Department of Pathology, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | | | | | | | - Jakub Golab
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Dominika Nowis
- Laboratory of Experimental Medicine, Center of New Technologies, University of Warsaw, Warsaw, Poland.,Genomic Medicine, Medical University of Warsaw, Warsaw, Poland
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102
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Allan KM, Loberg MA, Chepngeno J, Hurtig JE, Tripathi S, Kang MG, Allotey JK, Widdershins AH, Pilat JM, Sizek HJ, Murphy WJ, Naticchia MR, David JB, Morano KA, West JD. Trapping redox partnerships in oxidant-sensitive proteins with a small, thiol-reactive cross-linker. Free Radic Biol Med 2016; 101:356-366. [PMID: 27816612 PMCID: PMC5154803 DOI: 10.1016/j.freeradbiomed.2016.10.506] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 10/14/2016] [Accepted: 10/27/2016] [Indexed: 12/15/2022]
Abstract
A broad range of redox-regulated proteins undergo reversible disulfide bond formation on oxidation-prone cysteine residues. Heightened reactivity of the thiol groups in these cysteines also increases susceptibility to modification by organic electrophiles, a property that can be exploited in the study of redox networks. Here, we explored whether divinyl sulfone (DVSF), a thiol-reactive bifunctional electrophile, cross-links oxidant-sensitive proteins to their putative redox partners in cells. To test this idea, previously identified oxidant targets involved in oxidant defense (namely, peroxiredoxins, methionine sulfoxide reductases, sulfiredoxin, and glutathione peroxidases), metabolism, and proteostasis were monitored for cross-link formation following treatment of Saccharomyces cerevisiae with DVSF. Several proteins screened, including multiple oxidant defense proteins, underwent intermolecular and/or intramolecular cross-linking in response to DVSF. Specific redox-active cysteines within a subset of DVSF targets were found to influence cross-linking; in addition, DVSF-mediated cross-linking of its targets was impaired in cells first exposed to oxidants. Since cross-linking appeared to involve redox-active cysteines in these proteins, we examined whether potential redox partners became cross-linked to them upon DVSF treatment. Specifically, we found that several substrates of thioredoxins were cross-linked to the cytosolic thioredoxin Trx2 in cells treated with DVSF. However, other DVSF targets, like the peroxiredoxin Ahp1, principally formed intra-protein cross-links upon DVSF treatment. Moreover, additional protein targets, including several known to undergo S-glutathionylation, were conjugated via DVSF to glutathione. Our results indicate that DVSF is of potential use as a chemical tool for irreversibly trapping and discovering thiol-based redox partnerships within cells.
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Affiliation(s)
- Kristin M Allan
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Matthew A Loberg
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Juliet Chepngeno
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Jennifer E Hurtig
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Susmit Tripathi
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Min Goo Kang
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Jonathan K Allotey
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Afton H Widdershins
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Jennifer M Pilat
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Herbert J Sizek
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Wesley J Murphy
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Matthew R Naticchia
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Joseph B David
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States
| | - Kevin A Morano
- Department of Microbiology & Molecular Genetics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - James D West
- Biochemistry & Molecular Biology Program, Departments of Biology and Chemistry, The College of Wooster, Wooster, OH, United States.
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103
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Identification of H7 as a novel peroxiredoxin I inhibitor to induce differentiation of leukemia cells. Oncotarget 2016; 7:3873-83. [PMID: 26716647 PMCID: PMC4826176 DOI: 10.18632/oncotarget.6763] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 11/28/2015] [Indexed: 01/02/2023] Open
Abstract
Identifying novel targets to enhance leukemia-cell differentiation is an urgent requirment. We have recently proposed that inhibiting the antioxidant enzyme peroxiredoxin I (Prdx I) may induce leukemia-cell differentiation. However, this concept remains to be confirmed. In this work, we identified H7 as a novel Prdx I inhibitor through virtual screening, in vitro activity assay, and surface plasmon resonance assay. Cellular thermal shift assay showed that H7 directly bound to Prdx I but not to Prdxs II–V in cells. H7 treatment also increased reactive oxygen species (ROS) level and cell differentiation in leukemia cells, as reflected by the upregulation of the cell surface differentiation marker CD11b/CD14 and the morphological maturation of cells. The differentiation-induction effect of H7 was further observed in some non-acute promyelocytic leukemia (APL) and primary leukemia cells apart from APL NB4 cells. Moreover, the ROS scavenger N-acetyl cysteine significantly reversed the H7-induced cell differentiation. We demonstrated as well that H7-induced cell differentiation was associated with the activation of the ROS-Erk1/2-C/EBPβ axis. Finally, we showed H7 treatment induced cell differentiation in an APL mouse model. All of these data confirmed that Prdx I was novel target for inducing leukemia-cell differentiation and that H7 was a novel lead compound for optimizing Prdx I inhibition.
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104
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Chow ML, Troussicot L, Martin M, Doumèche B, Guillière F, Lancelin JM. Predicting and Understanding the Enzymatic Inhibition of Human Peroxiredoxin 5 by 4-Substituted Pyrocatechols by Combining Funnel Metadynamics, Solution NMR, and Steady-State Kinetics. Biochemistry 2016; 55:3469-80. [PMID: 27239955 DOI: 10.1021/acs.biochem.6b00367] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Funnel metadynamics is a kind of computational simulation used to enhance the sampling of protein-ligand binding events in solution. By characterization of the binding interaction events, an estimated absolute binding free energy can be calculated. Nuclear magnetic resonance and funnel metadynamics were used to evaluate the binding of pyrocatechol derivatives (catechol, 4-methylcatechol, and 4-tert-butylcatechol) to human peroxiredoxin 5. Human peroxiredoxins are peroxidases involved in cellular peroxide homeostasis. Recently, overexpressed or suppressed peroxiredoxin levels have been linked to various diseases. Here, the catechol derivatives were found to be inhibitors against human peroxiredoxin 5 through a partial mixed type noncompetitive mechanism. Funnel metadynamics provided a microscopic model for interpreting the inhibition mechanism. Correlations were observed between the inhibition constants and the absolute binding free energy. Overall, this study showcases the fact that funnel metadynamics simulations can be employed as a preliminary approach to gain an in-depth understanding of potential enzyme inhibitors.
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Affiliation(s)
- Melissa L Chow
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université Lyon 1, ENS Lyon-5, rue de la Doua, F-69100 Villeurbanne, France
| | - Laura Troussicot
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université Lyon 1, ENS Lyon-5, rue de la Doua, F-69100 Villeurbanne, France
| | - Marie Martin
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université Lyon 1, ENS Lyon-5, rue de la Doua, F-69100 Villeurbanne, France
| | - Bastien Doumèche
- Université de Lyon, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, UMR 5246, Université Claude Bernard Lyon 1, CNRS, INSA, CPE-Lyon, 43 Bd du 11 novembre 1918, F-69622 Villeurbanne, France
| | - Florence Guillière
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université Lyon 1, ENS Lyon-5, rue de la Doua, F-69100 Villeurbanne, France
| | - Jean-Marc Lancelin
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université Lyon 1, ENS Lyon-5, rue de la Doua, F-69100 Villeurbanne, France
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105
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Guo YX, Lin ZM, Wang MJ, Dong YW, Niu HM, Young CYF, Lou HX, Yuan HQ. Jungermannenone A and B induce ROS- and cell cycle-dependent apoptosis in prostate cancer cells in vitro. Acta Pharmacol Sin 2016; 37:814-24. [PMID: 27133304 DOI: 10.1038/aps.2016.26] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 03/21/2016] [Indexed: 01/03/2023] Open
Abstract
AIM Jungermannenone A and B (JA, JB) are new ent-kaurane diterpenoids isolated from Chinese liverwort Jungermannia fauriana, which show anti-proliferation activities in cancer cells. In this study we investigated the mechanisms underlying the anticancer action of JA and JB in PC3 human prostate cancer cells in vitro. METHODS A panel of 9 human cancer cell lines was tested. Cell proliferation was assessed with a real-time cell analyzer and MTT assay. Cell apoptosis, cell cycle distribution and ROS levels were measured using cytometry. Mitochondrial damage was examined by transmission electron microscopy. DNA damage was detected with comet assay. Apoptotic, DNA damage- and cell cycle-related proteins were analyzed using Western blotting. The expression of DNA repair genes was measured with qRT-PCR. RESULTS Both JA and JB exerted potent anti-proliferative action against the 9 cancer cell lines, and PC3 cells were more sensitive with IC50 values of 1.34±0.09 and 4.93±0.20 μmol/L, respectively. JA (1.5 μmol/L) and JB (5 μmol/L) induced PC3 cell apoptosis, which was attenuated by the caspase inhibitor Z-VAD. Furthermore, both JA and JB caused mitochondrial damage and ROS accumulation in PC3 cells, whereas vitamin C blocked the ROS accumulation and attenuated the cytotoxicity of JA and JB. Moreover, both JA and JB induced DNA damage, accompanied by downregulated DNA repair proteins Ku70/Ku80 and RDA51. JA induced marked cell cycle arrest at the G0/G1 phase, which was related to c-Myc suppression, whereas JB enforced the cell cycle blockade in the G2/M phase, which associated with activation of the JNK signaling. CONCLUSION Both JA and JB induce prostate cancer apoptosis via ROS accumulation and induction of cell cycle arrest.
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106
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Target identification of natural and traditional medicines with quantitative chemical proteomics approaches. Pharmacol Ther 2016; 162:10-22. [DOI: 10.1016/j.pharmthera.2016.01.010] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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107
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Xu S, Luo S, Yao H, Cai H, Miao X, Wu F, Yang DH, Wu X, Xie W, Yao H, Chen ZS, Xu J. Probing the Anticancer Action of Oridonin with Fluorescent Analogues: Visualizing Subcellular Localization to Mitochondria. J Med Chem 2016; 59:5022-34. [PMID: 27089099 DOI: 10.1021/acs.jmedchem.6b00408] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oridonin (1) is a complex ent-kaurane diterpenoid exhibiting remarkable antitumor activity. However, the detailed mechanism or cellular target that underlies this activity has not yet been identified. Herein, we report an efficient approach for exploring the anticancer mechanism of oridonin through development of the potent fluorescent analogues. A series of novel fluorescent oridonin probes linked with coumarin moieties were designed, synthesized, and characterized. Fluorescence microscopy and confocal imaging studies suggested that fluorescent oridonin probe 17d was rapidly taken up into tumor cells and the mitochondrion was the main site of its accumulation. Moreover, we confirmed that cytochrome c played an important role in oridonin induced mitochondrion-mediated apoptosis and α,β-unsaturated ketone is the active moiety of oridonin, which is crucial to its uptake, localization, and cytotoxicity. Our results provide new insights on the molecular mechanism of oridonin and would be useful for its further development into an antitumor agent.
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Affiliation(s)
- Shengtao Xu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Shanshan Luo
- Department of Pharmacology, School of Pharmacy, Fudan University , Shanghai 201203, P. R. China
| | - Hong Yao
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Hao Cai
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Xiaoming Miao
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University , Tianjin 300071, P. R. China
| | - Fang Wu
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University , Shanghai 200240, P. R. China
| | - Dong-Hua Yang
- College of Pharmacy and Health Sciences, St. John's University , 8000 Utopia Parkway, Queens, New York, New York 11439, United States
| | - Xiaoming Wu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Weijia Xie
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, P. R. China
| | - Zhe-Sheng Chen
- College of Pharmacy and Health Sciences, St. John's University , 8000 Utopia Parkway, Queens, New York, New York 11439, United States
| | - Jinyi Xu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, P. R. China
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108
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Park MH, Jo M, Kim YR, Lee CK, Hong JT. Roles of peroxiredoxins in cancer, neurodegenerative diseases and inflammatory diseases. Pharmacol Ther 2016; 163:1-23. [PMID: 27130805 PMCID: PMC7112520 DOI: 10.1016/j.pharmthera.2016.03.018] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 03/22/2016] [Indexed: 12/29/2022]
Abstract
Peroxiredoxins (PRDXs) are antioxidant enzymes, known to catalyze peroxide reduction to balance cellular hydrogen peroxide (H2O2) levels, which are essential for cell signaling and metabolism and act as a regulator of redox signaling. Redox signaling is a critical component of cell signaling pathways that are involved in the regulation of cell growth, metabolism, hormone signaling, immune regulation and variety of other physiological functions. Early studies demonstrated that PRDXs regulates cell growth, metabolism and immune regulation and therefore involved in the pathologic regulator or protectant of several cancers, neurodegenerative diseases and inflammatory diseases. Oxidative stress and antioxidant systems are important regulators of redox signaling regulated diseases. In addition, thiol-based redox systems through peroxiredoxins have been demonstrated to regulate several redox-dependent process related diseases. In this review article, we will discuss recent findings regarding PRDXs in the development of diseases and further discuss therapeutic approaches targeting PRDXs. Moreover, we will suggest that PRDXs could be targets of several diseases and the therapeutic agents for targeting PRDXs may have potential beneficial effects for the treatment of cancers, neurodegenerative diseases and inflammatory diseases. Future research should open new avenues for the design of novel therapeutic approaches targeting PRDXs.
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Affiliation(s)
- Mi Hee Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31, Osongsaengmyeong 1-ro, Osong-eup, Cheongwon-gun, Chungbuk, Republic of Korea, 361-951
| | - MiRan Jo
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31, Osongsaengmyeong 1-ro, Osong-eup, Cheongwon-gun, Chungbuk, Republic of Korea, 361-951
| | - Yu Ri Kim
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31, Osongsaengmyeong 1-ro, Osong-eup, Cheongwon-gun, Chungbuk, Republic of Korea, 361-951
| | - Chong-Kil Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, 12 Gaesin-dong, Heungduk-gu, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31, Osongsaengmyeong 1-ro, Osong-eup, Cheongwon-gun, Chungbuk, Republic of Korea, 361-951.
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109
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Bai G, Hou YY, Jiang M, Gao J. Integrated Systems Biology and Chemical Biology Approach to Exploring Mechanisms of Traditional Chinese Medicines. CHINESE HERBAL MEDICINES 2016. [DOI: 10.1016/s1674-6384(16)60017-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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110
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Angelucci F, Miele AE, Ardini M, Boumis G, Saccoccia F, Bellelli A. Typical 2-Cys peroxiredoxins in human parasites: Several physiological roles for a potential chemotherapy target. Mol Biochem Parasitol 2016; 206:2-12. [PMID: 27002228 DOI: 10.1016/j.molbiopara.2016.03.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 03/16/2016] [Accepted: 03/17/2016] [Indexed: 01/07/2023]
Abstract
Peroxiredoxins (Prxs) are ubiquitary proteins able to play multiple physiological roles, that include thiol-dependent peroxidase, chaperone holdase, sensor of H2O2, regulator of H2O2-dependent signal cascades, and modulator of the immune response. Prxs have been found in a great number of human pathogens, both eukaryotes and prokaryotes. Gene knock-out studies demonstrated that Prxs are essential for the survival and virulence of at least some of the pathogens tested, making these proteins potential drug targets. However, the multiplicity of roles played by Prxs constitutes an unexpected obstacle to drug development. Indeed, selective inhibitors of some of the functions of Prxs are known (namely of the peroxidase and holdase functions) and are here reported. However, it is often unclear which function is the most relevant in each pathogen, hence which one is most desirable to inhibit. Indeed there are evidences that the main physiological role of Prxs may not be the same in different parasites. We here review which functions of Prxs have been demonstrated to be relevant in different human parasites, finding that the peroxidase and chaperone activities figure prominently, whereas other known functions of Prxs have rarely, if ever, been observed in parasites, or have largely escaped detection thus far.
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Affiliation(s)
- Francesco Angelucci
- Department of Health, Life and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Adriana Erica Miele
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, Rome, Italy
| | - Matteo Ardini
- Department of Health, Life and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Giovanna Boumis
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, Rome, Italy
| | - Fulvio Saccoccia
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, Rome, Italy
| | - Andrea Bellelli
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, Rome, Italy.
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111
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Yang YJ, Baek JY, Goo J, Shin Y, Park JK, Jang JY, Wang SB, Jeong W, Lee HJ, Um HD, Lee SK, Choi Y, Rhee SG, Chang TS. Effective Killing of Cancer Cells Through ROS-Mediated Mechanisms by AMRI-59 Targeting Peroxiredoxin I. Antioxid Redox Signal 2016; 24:453-69. [PMID: 26528922 DOI: 10.1089/ars.2014.6187] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
AIMS The intrinsic increase of reactive oxygen species (ROS) production in cancer cells after malignant transformation frequently induces redox adaptation, leading to enhanced antioxidant capacity. Peroxiredoxin I (PrxI), an enzyme responsible for eliminating hydrogen peroxide, has been found to be elevated in many types of cancer cells. Since overexpression of PrxI promoted cancer cells' survival and resistance to chemotherapy and radiotherapy, PrxI has been proposed as a therapeutic target for anticancer drugs. In this study, we aimed to investigate the anticancer efficacy of a small molecule inhibitor of PrxI. RESULTS By a high-throughput screening approach, we identified AMRI-59 as a potent inhibitor of PrxI. AMRI-59 increased cellular ROS, leading to the activation of both mitochondria- and apoptosis signal-regulated kinase-1-mediated signaling pathways, resulting in apoptosis of A549 human lung adenocarcinoma. AMRI-59 caused no significant changes in ROS level, proliferation, and apoptosis of PrxI-knockdown A549 cells by RNA interference. PrxI overexpression or N-acetylcysteine pretreatment abrogated AMRI-59-induced cytotoxicity in A549 cells. AMRI-59 rendered tumorigenic ovarian cells more susceptible to ROS-mediated death compared with nontumorigenic cells. Moreover, significant antitumor activity of AMRI-59 was observed in mouse tumor xenograft model implanted with A549 cells with no apparent acute toxicity. INNOVATION This study offers preclinical proof-of-concept for AMRI-59, a lead small molecule inhibitor of PrxI, as an anticancer agent. CONCLUSIONS Our results highlight a promising strategy for cancer therapy that preferentially eradicates cancer cells by targeting the PrxI-mediated redox-dependent survival pathways.
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Affiliation(s)
- Yeon Ju Yang
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea.,2 Brain Korea 21 PLUS Project for Medical Science, Yonsei University , Seoul, Republic of Korea
| | - Jin Young Baek
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea
| | - Jail Goo
- 3 College of Life Sciences and Biotechnology, Korea University , Seoul, Republic of Korea
| | - Yoonho Shin
- 4 College of Pharmacy, Seoul National University , Seoul, Republic of Korea
| | - Jong Kuk Park
- 5 Laboratory of Radiation Cancer Biology, Korea Institute of Radiological and Medical Sciences , Seoul, Republic of Korea
| | - Ji Yong Jang
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea
| | - Su Bin Wang
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea
| | - Woojin Jeong
- 6 Division of Life Sciences, Ewha Womans University , Seoul, Republic of Korea
| | - Hwa Jeong Lee
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea.,7 College of Pharmacy, Ewha Womans University , Seoul, Republic of Korea
| | - Hong-Duck Um
- 5 Laboratory of Radiation Cancer Biology, Korea Institute of Radiological and Medical Sciences , Seoul, Republic of Korea
| | - Sang Kook Lee
- 4 College of Pharmacy, Seoul National University , Seoul, Republic of Korea
| | - Yongseok Choi
- 3 College of Life Sciences and Biotechnology, Korea University , Seoul, Republic of Korea
| | - Sue Goo Rhee
- 8 Yonsei Biomedical Research Institute, Yonsei University College of Medicine , Seoul, Republic of Korea
| | - Tong-Shin Chang
- 1 Graduate School of Pharmaceutical Sciences, Ewha Womans University , Seoul, Republic of Korea.,7 College of Pharmacy, Ewha Womans University , Seoul, Republic of Korea
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112
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LG-362B targets PML-RARα and blocks ATRA resistance of acute promyelocytic leukemia. Leukemia 2016; 30:1465-74. [PMID: 27012866 DOI: 10.1038/leu.2016.50] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 01/11/2016] [Accepted: 02/23/2016] [Indexed: 12/25/2022]
Abstract
Acute promyelocytic leukemia (APL) is a M3 subtype of acute myeloid leukemia (AML). Promyelocytic leukemia (PML)-retinoic acid receptor α (RARα) translocation generally occurs in APL patients and makes APL unique both for diagnosis and treatment. However, some conventional drugs like all-transretinoic acid (ATRA) and arsenic trioxide (ATO), as the preferred ones for APL therapy, induce irreversible resistance and responsible for clinical failure of complete remission. Herein, we screened a library of novel chemical compounds with structural diversity and discovered a novel synthetic small compound, named LG-362B, specifically inhibited the proliferation of APL and induced apoptosis. Notably, the differentiation arrest was also relieved by LG-362B in cultured APL cells and APL mouse models. Moreover, LG-362B overcame the ATRA resistance on cellular differentiation and transplantable APL mice. These positive effects were driven by caspases-mediated degradation of PML-RARα when treated with LG-362B, making it specific to APL and reasonable for ATRA resistance relief. We propose that LG-362B would be a potential candidate agent for the treatment of the relapsed APL with ATRA resistance in the future.
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113
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Pham MQ, Iscache AL, Pham QL, Gairin JE. Cytotoxic, apoptotic, and sensitization properties ofent-kaurane-type diterpenoids fromCroton tonkinensisGagnep on human liver cancer HepG2 and Hep3b cell lines. Fundam Clin Pharmacol 2016; 30:137-46. [DOI: 10.1111/fcp.12176] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 12/16/2015] [Accepted: 12/23/2015] [Indexed: 11/27/2022]
Affiliation(s)
- Minh Quan Pham
- Faculté des Sciences Pharmaceutiques; UPS; UMR 152 Pharma-DEV; Université de Toulouse; Université Toulouse 3 35 Chemin des Maraîchers Toulouse Cedex 9 F-31062 France
- Institute of Natural Products Chemistry; Vietnam Academy of Science and Technology; Building 1H 18 Hoang Quoc Viet Hanoi Vietnam
| | - Anne Laure Iscache
- Plateau technique de cytométrie et tri cellulaire; UMR INSERM 1043-CNRS 5282- Université Toulouse 3; CHU Purpan BP3028 31024 Toulouse Cedex 3 France
| | - Quoc Long Pham
- Institute of Natural Products Chemistry; Vietnam Academy of Science and Technology; Building 1H 18 Hoang Quoc Viet Hanoi Vietnam
| | - Jean Edouard Gairin
- Faculté des Sciences Pharmaceutiques; UPS; UMR 152 Pharma-DEV; Université de Toulouse; Université Toulouse 3 35 Chemin des Maraîchers Toulouse Cedex 9 F-31062 France
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114
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Wu J, Bao BH, Shen Q, Zhang YC, Jiang Q, Li JX. Novel heterocyclic ring-fused oleanolic acid derivatives as osteoclast inhibitors for osteoporosis. MEDCHEMCOMM 2016. [DOI: 10.1039/c5md00482a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A series of novel oleanolic acid (OA) derivatives were synthesized via modifications of the A-ring and C28-amides of OA, and their anti-bone resorption activities were evaluated in vitro and in vivo.
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Affiliation(s)
- Jing Wu
- State Key Lab of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Bei-Hua Bao
- State Key Lab of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Qi Shen
- State Key Lab of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Yu-Chao Zhang
- State Key Lab of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Qing Jiang
- Medical School of Nanjing University
- Nanjing 210093
- China
| | - Jian-Xin Li
- State Key Lab of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
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115
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Hampton MB, O’Connor KM. Peroxiredoxins and the Regulation of Cell Death. Mol Cells 2016; 39:72-6. [PMID: 26810076 PMCID: PMC4749878 DOI: 10.14348/molcells.2016.2351] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 12/24/2015] [Indexed: 11/27/2022] Open
Abstract
Cell death pathways such as apoptosis can be activated in response to oxidative stress, enabling the disposal of damaged cells. In contrast, controlled intracellular redox events are proposed to be a significant event during apoptosis signaling, regardless of the initiating stimulus. In this scenario oxidants act as second messengers, mediating the post-translational modification of specific regulatory proteins. The exact mechanism of this signaling is unclear, but increased understanding offers the potential to promote or inhibit apoptosis through modulating the redox environment of cells. Peroxiredoxins are thiol peroxidases that remove hydroperoxides, and are also emerging as important players in cellular redox signaling. This review discusses the potential role of peroxiredoxins in the regulation of apoptosis, and also their ability to act as biomarkers of redox changes during the initiation and progression of cell death.
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Affiliation(s)
- Mark B. Hampton
- Centre for Free Radical Research, Department of Pathology, University of Otago, Christchurch 8140,
New Zealand
| | - Karina M. O’Connor
- Centre for Free Radical Research, Department of Pathology, University of Otago, Christchurch 8140,
New Zealand
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116
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Haem-activated promiscuous targeting of artemisinin in Plasmodium falciparum. Nat Commun 2015; 6:10111. [PMID: 26694030 PMCID: PMC4703832 DOI: 10.1038/ncomms10111] [Citation(s) in RCA: 400] [Impact Index Per Article: 44.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 11/04/2015] [Indexed: 12/17/2022] Open
Abstract
The mechanism of action of artemisinin and its derivatives, the most potent of the anti-malarial drugs, is not completely understood. Here we present an unbiased chemical proteomics analysis to directly explore this mechanism in Plasmodium falciparum. We use an alkyne-tagged artemisinin analogue coupled with biotin to identify 124 artemisinin covalent binding protein targets, many of which are involved in the essential biological processes of the parasite. Such a broad targeting spectrum disrupts the biochemical landscape of the parasite and causes its death. Furthermore, using alkyne-tagged artemisinin coupled with a fluorescent dye to monitor protein binding, we show that haem, rather than free ferrous iron, is predominantly responsible for artemisinin activation. The haem derives primarily from the parasite's haem biosynthesis pathway at the early ring stage and from haemoglobin digestion at the latter stages. Our results support a unifying model to explain the action and specificity of artemisinin in parasite killing. The mechanism of action of artemisinin, an antimalarial drug, is not well understood. Here, the authors use a labelled artemisinin analogue to show that the drug is mainly activated by haem and then binds covalently to over 120 proteins in the malaria parasite, affecting many of its cellular processes.
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117
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He T, Hatem E, Vernis L, Lei M, Huang ME. PRX1 knockdown potentiates vitamin K3 toxicity in cancer cells: a potential new therapeutic perspective for an old drug. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2015; 34:152. [PMID: 26689287 PMCID: PMC4687332 DOI: 10.1186/s13046-015-0270-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 12/11/2015] [Indexed: 12/23/2022]
Abstract
Background Many promising anticancer molecules are abandoned during the course from bench to bedside due to lack of clear-cut efficiency and/or severe side effects. Vitamin K3 (vitK3) is a synthetic naphthoquinone exhibiting significant in vitro and in vivo anticancer activity against multiple human cancers, and has therapeutic potential when combined with other anticancer molecules. The major mechanism for the anticancer activity of vitK3 is the generation of cytotoxic reactive oxygen species (ROS). We thus reasoned that a rational redox modulation of cancer cells could enhance vitK3 anticancer efficiency. Methods Cancer cell lines with peroxiredoxin 1 (PRX1) gene transiently or stably knocked-down and corresponding controls were exposed to vitK3 as well as a set of anticancer molecules, including vinblastine, taxol, doxorubicin, daunorubicin, actinomycin D and 5-fluorouracil. Cytotoxic effects and cell death events were evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT)-based assay, cell clonogenic assay, measurement of mitochondrial membrane potential and annexin V/propidium iodide double staining. Global ROS accumulation and compartment-specific H2O2 generation were determined respectively by a redox-sensitive chemical probe and H2O2-sensitive sensor HyPer. Oxidation of endogenous antioxidant proteins including TRX1, TRX2 and PRX3 was monitored by redox western blot. Results We observed that the PRX1 knockdown in HeLa and A549 cells conferred enhanced sensitivity to vitK3, reducing substantially the necessary doses to kill cancer cells. The same conditions (combination of vitK3 and PRX1 knockdown) caused little cytotoxicity in non-cancerous cells, suggesting a cancer-cell-selective property. Increased ROS accumulation had a crucial role in vitK3-induced cell death in PRX1 knockdown cells. The use of H2O2-specific sensors HyPer revealed that vitK3 lead to immediate accumulation of H2O2 in the cytosol, nucleus, and mitochondrial matrix. PRX1 silencing significantly up-regulated mRNA and protein levels of NRH:quinone oxidoreductase 2, which was partially responsible for vitK3-induced ROS accumulation and consequent cell death. Conclusion Our data suggest that PRX1 inactivation could represent an interesting strategy to enhance cancer cell sensitivity to vitK3, providing a potential new therapeutic perspective for this old molecule. Conceptually, a combination of drugs that modulate intracellular redox states and drugs that operate through the generation of ROS could be a new therapeutic strategy for cancer treatment.
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Affiliation(s)
- Tiantian He
- Centre National de la Recherche Scientifique, UMR3348 "Genotoxic Stress and Cancer", Centre Universitaire, Orsay, 91405, France. .,Institut Curie, Centre de Recherche, Orsay, 91405, France.
| | - Elie Hatem
- Centre National de la Recherche Scientifique, UMR3348 "Genotoxic Stress and Cancer", Centre Universitaire, Orsay, 91405, France. .,Institut Curie, Centre de Recherche, Orsay, 91405, France.
| | - Laurence Vernis
- Centre National de la Recherche Scientifique, UMR3348 "Genotoxic Stress and Cancer", Centre Universitaire, Orsay, 91405, France. .,Institut Curie, Centre de Recherche, Orsay, 91405, France.
| | - Ming Lei
- Northwest A&F University, College of Life Science, Key Laboratory of Agricultural Molecular Biology, Yangling, Shaanxi Province, 712100, China.
| | - Meng-Er Huang
- Centre National de la Recherche Scientifique, UMR3348 "Genotoxic Stress and Cancer", Centre Universitaire, Orsay, 91405, France. .,Institut Curie, Centre de Recherche, Orsay, 91405, France.
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118
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ent-Kauranoids isolated from Isodon eriocalyx var. laxiflora and their structure activity relationship analyses. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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119
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Natural products against hematological malignancies and identification of their targets. SCIENCE CHINA-LIFE SCIENCES 2015; 58:1191-201. [DOI: 10.1007/s11427-015-4922-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 08/16/2015] [Indexed: 01/14/2023]
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120
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Yang L, Yang C, Li C, Zhao Q, Liu L, Fang X, Chen XY. Recent advances in biosynthesis of bioactive compounds in traditional Chinese medicinal plants. Sci Bull (Beijing) 2015; 61:3-17. [PMID: 26844006 PMCID: PMC4722072 DOI: 10.1007/s11434-015-0929-2] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 10/15/2015] [Indexed: 10/27/2022]
Abstract
Plants synthesize and accumulate large amount of specialized (or secondary) metabolites also known as natural products, which provide a rich source for modern pharmacy. In China, plants have been used in traditional medicine for thousands of years. Recent development of molecular biology, genomics and functional genomics as well as high-throughput analytical chemical technologies has greatly promoted the research on medicinal plants. In this article, we review recent advances in the elucidation of biosynthesis of specialized metabolites in medicinal plants, including phenylpropanoids, terpenoids and alkaloids. These natural products may share a common upstream pathway to form a limited numbers of common precursors, but are characteristic in distinct modifications leading to highly variable structures. Although this review is focused on traditional Chinese medicine, other plants with a great medicinal interest or potential are also discussed. Understanding of their biosynthesis processes is critical for producing these highly value molecules at large scale and low cost in microbes and will benefit to not only human health but also plant resource conservation.
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Affiliation(s)
- Lei Yang
- Plant Science Research Center, Shanghai Chenshan Botanical Garden, Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai, 201602 China
| | - Changqing Yang
- National Key Laboratory of Plant Molecular Genetics and National Center for Plant Gene Research, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032 China
| | - Chenyi Li
- National Key Laboratory of Plant Molecular Genetics and National Center for Plant Gene Research, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032 China ; University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Qing Zhao
- National Key Laboratory of Plant Molecular Genetics and National Center for Plant Gene Research, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032 China
| | - Ling Liu
- Plant Science Research Center, Shanghai Chenshan Botanical Garden, Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai, 201602 China
| | - Xin Fang
- National Key Laboratory of Plant Molecular Genetics and National Center for Plant Gene Research, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032 China
| | - Xiao-Ya Chen
- Plant Science Research Center, Shanghai Chenshan Botanical Garden, Shanghai Key Laboratory of Plant Functional Genomics and Resources, Shanghai, 201602 China ; National Key Laboratory of Plant Molecular Genetics and National Center for Plant Gene Research, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200032 China
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121
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Shen SM, Guo M, Xiong Z, Yu Y, Zhao XY, Zhang FF, Chen GQ. AIF inhibits tumor metastasis by protecting PTEN from oxidation. EMBO Rep 2015; 16:1563-80. [PMID: 26415504 PMCID: PMC4641507 DOI: 10.15252/embr.201540536] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 08/26/2015] [Indexed: 12/27/2022] Open
Abstract
Apoptosis-inducing factor (AIF) exerts dual roles on cell death and survival, but its substrates as a putative oxidoreductase and roles in tumorigenesis remain elusive. Here, we report that AIF physically interacts with and inhibits the oxidation of phosphatase and tensin homolog on chromosome ten (PTEN), a tumor suppressor susceptible for oxidation-mediated inactivation. More intriguingly, we also identify PTEN as a mitochondrial protein and the ectopic expression of mitochondrial targeting sequence-carrying PTEN almost completely inhibits Akt phosphorylation in PTEN-deficient cells. AIF knockdown causes oxidation-mediated inactivation of the lipid phosphatase activity of PTEN, with ensuing activation of Akt kinase, phosphorylation of the Akt substrate GSK-3β, and activation of β-catenin signaling in cancer cells. Through its effect on β-catenin signaling, AIF inhibits epithelial–mesenchymal transition (EMT) and metastasis of cancer cells in vitro and in orthotopically implanted xenografts. Accordingly, the expression of AIF is correlated with the survival of human patients with cancers of multiple origins. These results identify PTEN as the substrate of AIF oxidoreductase and reveal a novel function for AIF in controlling tumor metastasis.
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Affiliation(s)
- Shao-Ming Shen
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Meng Guo
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Zhong Xiong
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Yun Yu
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Xu-Yun Zhao
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Fei-Fei Zhang
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Guo-Qiang Chen
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China Institute of Health Sciences, Shanghai Institutes for Biological Sciences of Chinese Academy of Sciences-SJTU-SM, Shanghai, China
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122
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Riehl PS, DePorre YC, Armaly AM, Groso EJ, Schindler CS. New avenues for the synthesis of ent-kaurene diterpenoids. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.116] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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123
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Zhang WB, Shao WB, Li FZ, Gong JX, Yang Z. Asymmetric Total Synthesis of (−)-Maoecrystal V. Chem Asian J 2015; 10:1874-80. [DOI: 10.1002/asia.201500564] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Indexed: 01/05/2023]
Affiliation(s)
- Wei-bin Zhang
- Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Wen-bin Shao
- Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Fu-zhuo Li
- Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Jian-xian Gong
- Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Zhen Yang
- Laboratory of Chemical Genomics; School of Chemical Biology and Biotechnology; Peking University Shenzhen Graduate School; Shenzhen 518055 China
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and; Beijing National Laboratory for Molecular Science (BNLMS); Peking-Tsinghua Center for Life Sciences; Peking University; Beijing 100871 China
- Key Laboratory of Marine Drugs; Chinese Ministry of Education; School of Medicine and Pharmacy; Ocean University of China; 5 Yushan Road Qingdao China
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124
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Siernicka M, Winiarska M, Bajor M, Firczuk M, Muchowicz A, Bobrowicz M, Fauriat C, Golab J, Olive D, Zagozdzon R. Adenanthin, a new inhibitor of thiol-dependent antioxidant enzymes, impairs the effector functions of human natural killer cells. Immunology 2015; 146:173-83. [PMID: 26094816 DOI: 10.1111/imm.12494] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 06/05/2015] [Accepted: 06/08/2015] [Indexed: 12/25/2022] Open
Abstract
Natural killer (NK) cells are considered critical components of the innate and adaptive immune responses. Deficiencies in NK cell activity are common, such as those that occur in cancer patients, and they can be responsible for dysfunctional immune surveillance. Persistent oxidative stress is intrinsic to many malignant tumours, and numerous studies have focused on the effects of reactive oxygen species on the anti-tumour activity of NK cells. Indeed, investigations in animal models have suggested that one of the most important thiol-dependent antioxidant enzymes, peroxiredoxin 1 (PRDX1), is essential for NK cell function. In this work, our analysis of the transcriptomic expression pattern of antioxidant enzymes in human NK cells has identified PRDX1 as the most prominently induced transcript out of the 18 transcripts evaluated in activated NK cells. The change in PRDX1 expression was followed by increased expression of two other enzymes from the PRDX-related antioxidant chain: thioredoxin and thioredoxin reductase. To study the role of thiol-dependent antioxidants in more detail, we applied a novel compound, adenanthin, to induce an abrupt dysfunction of the PRDX-related antioxidant chain in NK cells. In human primary NK cells, we observed profound alterations in spontaneous and antibody-dependent NK cell cytotoxicity against cancer cells, impaired degranulation, and a decreased expression of activation markers under these conditions. Collectively, our study pinpoints the unique role for the antioxidant activity of the PRDX-related enzymatic chain in human NK cell functions. Further understanding this phenomenon will prospectively lead to fine-tuning of the novel NK-targeted therapeutic approaches to human disease.
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Affiliation(s)
- Marta Siernicka
- Department of Immunology, Centre for Biostructure Research, Medical University of Warsaw, Warsaw, Poland.,Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Magdalena Winiarska
- Department of Immunology, Centre for Biostructure Research, Medical University of Warsaw, Warsaw, Poland
| | - Malgorzata Bajor
- Department of Immunology, Centre for Biostructure Research, Medical University of Warsaw, Warsaw, Poland
| | - Malgorzata Firczuk
- Department of Immunology, Centre for Biostructure Research, Medical University of Warsaw, Warsaw, Poland
| | - Angelika Muchowicz
- Department of Immunology, Centre for Biostructure Research, Medical University of Warsaw, Warsaw, Poland
| | - Malgorzata Bobrowicz
- Department of Immunology, Centre for Biostructure Research, Medical University of Warsaw, Warsaw, Poland.,Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Cyril Fauriat
- IBiSA Cancer Immunomonitoring Platform, Institut Paoli Calmettes, Inserm, U1068, CRCM, Institut Paoli-Calmettes, CNRS, UMR7258, Aix-Marseille Université, Marseille, France
| | - Jakub Golab
- Department of Immunology, Centre for Biostructure Research, Medical University of Warsaw, Warsaw, Poland
| | - Daniel Olive
- IBiSA Cancer Immunomonitoring Platform, Institut Paoli Calmettes, Inserm, U1068, CRCM, Institut Paoli-Calmettes, CNRS, UMR7258, Aix-Marseille Université, Marseille, France
| | - Radoslaw Zagozdzon
- Department of Immunology, Centre for Biostructure Research, Medical University of Warsaw, Warsaw, Poland.,Department of Bioinformatics, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
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125
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Novel anti-thrombotic agent for modulation of protein disulfide isomerase family member ERp57 for prophylactic therapy. Sci Rep 2015; 5:10353. [PMID: 26037049 PMCID: PMC4650696 DOI: 10.1038/srep10353] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Accepted: 04/09/2015] [Indexed: 12/12/2022] Open
Abstract
Protein disulfide isomerase (PDI) family members including PDI and ERp57 emerge as novel targets for anti-thrombotic treatments, but chemical agents with selectivity remain to be explored. We previously reported a novel derivative of danshensu (DSS), known as ADTM, displayed strong cardioprotective effects against oxidative stress-induced cellular injury in vitro and acute myocardial infarct in vivo. Herein, using chemical proteomics approach, we identified ERp57 as a major target of ADTM. ADTM displayed potent inhibitory effects on the redox activity of ERp57, inhibited the adenosine diphosphate (ADP)-induced expressions of P-selectin and αIIbβ3 integrin, and disrupted the interaction between ERp57 and αIIbβ3. In addition, ADTM inhibited both arachidonic acid (AA)-induced and ADP-induced platelet aggregation in vitro. Furthermore, ADTM significantly inhibited rat platelet aggregation and thrombus formation in vivo. Taken together, ADTM represents a promising candidate for anti-thrombotic therapy targeting ERp57.
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126
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Zhao Q, Ding Y, Deng Z, Lee OY, Gao P, Chen P, Rose RJ, Zhao H, Zhang Z, Tao XP, Heck AJR, Kao R, Yang D. Natural products triptolide, celastrol, and withaferin A inhibit the chaperone activity of peroxiredoxin I. Chem Sci 2015; 6:4124-4130. [PMID: 28717468 PMCID: PMC5497274 DOI: 10.1039/c5sc00633c] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 04/22/2015] [Indexed: 12/21/2022] Open
Abstract
The natural products triptolide, withaferin A and celastrol have been discovered to be novel Prx I chaperone inhibitors using synthetic chemical probes.
Peroxiredoxin I (Prx I) plays an important role in cancer development and inflammation. It is a dual-functional protein which acts as both an antioxidant enzyme and a molecular chaperone. While there have been intensive studies on its peroxidase activity, Prx I's chaperone activity remains elusive, likely due to the lack of chaperone inhibitors. Here we report that natural product triptolide selectively inhibits the chaperone activity of Prx I, but not its peroxidase activity. Through direct interaction with corresponding cysteines, triptolide triggers dissociation of high-molecular-weight oligomers of Prx I, and thereby inhibits its chaperone activity in a dose-dependent manner. We have also identified celastrol and withaferin A as novel Prx I chaperone inhibitors that are even more potent than triptolide in the chaperone activity assay. By revealing the exact molecular mechanisms of interaction and inhibition, the current study provides the first Prx I chaperone inhibitors as promising pharmacological tools for modulating and dissecting the chaperone function of Prx I.
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Affiliation(s)
- Qian Zhao
- Morningside Laboratory for Chemical Biology , Department of Chemistry , The University of Hong Kong , Hong Kong , China .
| | - Yu Ding
- School of Life Sciences , Fudan University , Shanghai , China
| | - Zhangshuang Deng
- Hubei Key Laboratory of Natural Product Research and Development , College of Biological and Pharmaceutical Sciences , China Three Gorges University , Yichang , China
| | - On-Yi Lee
- Morningside Laboratory for Chemical Biology , Department of Chemistry , The University of Hong Kong , Hong Kong , China .
| | - Peng Gao
- Department of Microbiology , The University of Hong Kong , Hong Kong , China
| | - Pin Chen
- Morningside Laboratory for Chemical Biology , Department of Chemistry , The University of Hong Kong , Hong Kong , China .
| | - Rebecca J Rose
- Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences , Utrecht University , Netherlands Proteomics Centre , The Netherlands
| | - Hong Zhao
- Department of Chemistry , The Chinese University of Hong Kong , Hong Kong , China
| | - Zhehao Zhang
- Morningside Laboratory for Chemical Biology , Department of Chemistry , The University of Hong Kong , Hong Kong , China .
| | - Xin-Pei Tao
- Morningside Laboratory for Chemical Biology , Department of Chemistry , The University of Hong Kong , Hong Kong , China .
| | - Albert J R Heck
- Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences , Utrecht University , Netherlands Proteomics Centre , The Netherlands
| | - Richard Kao
- Department of Microbiology , The University of Hong Kong , Hong Kong , China
| | - Dan Yang
- Morningside Laboratory for Chemical Biology , Department of Chemistry , The University of Hong Kong , Hong Kong , China .
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Lin Z, Guo Y, Gao Y, Wang S, Wang X, Xie Z, Niu H, Chang W, Liu L, Yuan H, Lou H. ent-Kaurane Diterpenoids from Chinese Liverworts and Their Antitumor Activities through Michael Addition As Detected in Situ by a Fluorescence Probe. J Med Chem 2015; 58:3944-56. [PMID: 25856683 DOI: 10.1021/acs.jmedchem.5b00208] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Zhaomin Lin
- Department
of Natural Products Chemistry, Key Laboratory of Chemical Biology
of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
| | - Yanxia Guo
- Department
of Biochemistry and Molecular Biology, School of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
| | - Yanhui Gao
- Department
of Natural Products Chemistry, Key Laboratory of Chemical Biology
of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
| | - Shuqi Wang
- Department
of Natural Products Chemistry, Key Laboratory of Chemical Biology
of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
| | - Xiaoning Wang
- Department
of Natural Products Chemistry, Key Laboratory of Chemical Biology
of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
| | - Zhiyu Xie
- Department
of Natural Products Chemistry, Key Laboratory of Chemical Biology
of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
| | - Huanmin Niu
- Department
of Biochemistry and Molecular Biology, School of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
| | - Wenqiang Chang
- Department
of Natural Products Chemistry, Key Laboratory of Chemical Biology
of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
| | - Lei Liu
- Department
of Natural Products Chemistry, Key Laboratory of Chemical Biology
of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
| | - Huiqing Yuan
- Department
of Biochemistry and Molecular Biology, School of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
| | - Hongxiang Lou
- Department
of Natural Products Chemistry, Key Laboratory of Chemical Biology
of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
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Cao Y, Wei W, Zhang N, Yu Q, Xu WB, Yu WJ, Chen GQ, Wu YL, Yan H. Oridonin stabilizes retinoic acid receptor alpha through ROS-activated NF-κB signaling. BMC Cancer 2015; 15:248. [PMID: 25886043 PMCID: PMC4403721 DOI: 10.1186/s12885-015-1219-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 03/19/2015] [Indexed: 12/22/2022] Open
Abstract
Background Retinoic acid receptor alpha (RARα) plays an essential role in the regulation of many biological processes, such as hematopoietic cell differentiation, while abnormal RARα function contributes to the pathogenesis of certain diseases including cancers, especially acute promyelocytic leukemia (APL). Recently, oridonin, a natural diterpenoid isolated from Rabdosia rubescens, was demonstrated to regulate RARα by increasing its protein level. However, the underlying molecular mechanism for this action has not been fully elucidated. Methods In the APL cell line, NB4, the effect of oridonin on RARα protein was analyzed by western blot and real-time quantitative RT-PCR analyses. Flow cytometry was performed to detect intracellular levels of reactive oxygen species (ROS). The association between nuclear factor-kappa B (NF-κB) signaling and the effect of oridonin was assessed using specific inhibitors, shRNA gene knockdown, and immunofluorescence assays. In addition, primary leukemia cells were treated with oridonin and analyzed by western blot in this study. Results RARα possesses transcriptional activity in the presence of its ligand, all-trans retinoic acid (ATRA). Oridonin remarkably stabilized the RARα protein, which retained transcriptional activity. Oridonin also moderately increased intracellular ROS levels, while pretreatment with the ROS scavenger, N-acetyl-l-cysteine (NAC), dramatically abrogated RARα stabilization by oridonin. More intriguingly, direct exposure to low concentrations of H2O2 also increased RARα protein but not mRNA levels, suggesting a role for ROS in oridonin stabilization of RARα protein. Further investigations showed that NAC antagonized oridonin-induced activation of NF-κB signaling, while the NF-κB signaling inhibitor, Bay 11–7082, effectively blocked the oridonin increase in RARα protein levels. In line with this, over-expression of IκΒα (A32/36), a super-repressor form of IκΒα, or NF-κB-p65 knockdown inhibited oridonin or H2O2-induced RARα stability. Finally, tumor necrosis factor alpha (TNFα), a classical activator of NF-κB signaling, modulated the stability of RARα protein. Conclusions Oridonin stabilizes RARα protein by increasing cellular ROS levels, which causes activation of the NF-κB signaling pathway.
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Affiliation(s)
- Yang Cao
- Department of Hematology, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.
| | - Wei Wei
- Department of Hematology, Xinhua Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.
| | - Nan Zhang
- Department of Hematology, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.
| | - Qing Yu
- Department of Hematology, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.
| | - Wen-Bin Xu
- Department of Hematology, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.
| | - Wen-Jun Yu
- Department of Hematology, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.
| | - Guo-Qiang Chen
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of National Ministry of Education, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.
| | - Ying-Li Wu
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of National Ministry of Education, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.
| | - Hua Yan
- Department of Hematology, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.
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Dong T, Li C, Wang X, Dian L, Zhang X, Li L, Chen S, Cao R, Li L, Huang N, He S, Lei X. Ainsliadimer A selectively inhibits IKKα/β by covalently binding a conserved cysteine. Nat Commun 2015; 6:6522. [PMID: 25813672 PMCID: PMC4389228 DOI: 10.1038/ncomms7522] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 02/04/2015] [Indexed: 01/08/2023] Open
Abstract
Aberrant activation of NF-κB is associated with the development of cancer and autoimmune and inflammatory diseases. IKKs are well recognized as key regulators in the NF-κB pathway and therefore represent attractive targets for intervention with small molecule inhibitors. Herein, we report that a complex natural product ainsliadimer A is a potent inhibitor of the NF-κB pathway. Ainsliadimer A selectively binds to the conserved cysteine 46 residue of IKKα/β and suppresses their activities through an allosteric effect, leading to the inhibition of both canonical and non-canonical NF-κB pathways. Remarkably, ainsliadimer A induces cell death of various cancer cells and represses in vivo tumour growth and endotoxin-mediated inflammatory responses. Ainsliadimer A is thus a natural product targeting the cysteine 46 of IKKα/β to block NF-κB signalling. Therefore, it has great potential for use in the development of anticancer and anti-inflammatory therapies. IKK is a key inducer of NF-κB, and has been targeted by several small molecule drugs. Here the authors show that a natural product from a Chinese medical herb inhibits NF-κB via covalent binding to a unique conserved region of IKK, and efficiently inhibits tumour growth and sepsis in mice.
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Affiliation(s)
- Ting Dong
- Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China.,National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Chao Li
- Beijing National Laboratory for Molecular Sciences, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Xing Wang
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, and Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215123, China
| | - Longyang Dian
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Xiuguo Zhang
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Lin Li
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - She Chen
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Ran Cao
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Li Li
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Niu Huang
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Sudan He
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, and Collaborative Innovation Center of Hematology, Soochow University, Suzhou 215123, China
| | - Xiaoguang Lei
- Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China.,National Institute of Biological Sciences (NIBS), Beijing 102206, China.,Beijing National Laboratory for Molecular Sciences, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
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130
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Ye BX, Deng X, Shao LD, Lu Y, Xiao R, Liu YJ, Jin Y, Xie YY, Zhao Y, Luo LF, Ma S, Gao M, Zhang LR, He J, Zhang WN, Chen Y, Xia CF, Deng M, Liu TX, Zhao QS, Chen SJ, Chen Z. Vibsanin B preferentially targets HSP90β, inhibits interstitial leukocyte migration, and ameliorates experimental autoimmune encephalomyelitis. THE JOURNAL OF IMMUNOLOGY 2015; 194:4489-97. [PMID: 25810397 DOI: 10.4049/jimmunol.1402798] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 02/24/2015] [Indexed: 01/16/2023]
Abstract
Interstitial leukocyte migration plays a critical role in inflammation and offers a therapeutic target for treating inflammation-associated diseases such as multiple sclerosis. Identifying small molecules to inhibit undesired leukocyte migration provides promise for the treatment of these disorders. In this study, we identified vibsanin B, a novel macrocyclic diterpenoid isolated from Viburnum odoratissimum Ker-Gawl, that inhibited zebrafish interstitial leukocyte migration using a transgenic zebrafish line (TG:zlyz-enhanced GFP). We found that vibsanin B preferentially binds to heat shock protein (HSP)90β. At the molecular level, inactivation of HSP90 can mimic vibsanin B's effect of inhibiting interstitial leukocyte migration. Furthermore, we demonstrated that vibsanin B ameliorates experimental autoimmune encephalomyelitis in mice with pathological manifestation of decreased leukocyte infiltration into their CNS. In summary, vibsanin B is a novel lead compound that preferentially targets HSP90β and inhibits interstitial leukocyte migration, offering a promising drug lead for treating inflammation-associated diseases.
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Affiliation(s)
- Bai-Xin Ye
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xu Deng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Li-Dong Shao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Ying Lu
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Run Xiao
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yi-Jie Liu
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yi Jin
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yin-Yin Xie
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yan Zhao
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Liu-Fei Luo
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Shun Ma
- State Key Laboratory of Cellular Stress Biology, Xiamen University, Xiamen 361102, China
| | - Ming Gao
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; and
| | - Lian-Ru Zhang
- State Key Laboratory of Cellular Stress Biology, Xiamen University, Xiamen 361102, China
| | - Juan He
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Wei-Na Zhang
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yi Chen
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Cheng-Feng Xia
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Min Deng
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Ting-Xi Liu
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Qin-Shi Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
| | - Sai-Juan Chen
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China;
| | - Zhu Chen
- State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China;
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Kang SW, Lee S, Lee EK. ROS and energy metabolism in cancer cells: alliance for fast growth. Arch Pharm Res 2015; 38:338-45. [PMID: 25599615 DOI: 10.1007/s12272-015-0550-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Accepted: 01/05/2015] [Indexed: 10/24/2022]
Abstract
In normal cells, the cellular reactive oxygen species (ROS) level is proportional to the activity of mitochondrial electron transport and tightly controlled by endogenous antioxidant system. However, energy metabolism and ROS homeostasis in cancer cells are much different from those in normal cells. For example, a majority of cellular glucose is metabolized through aerobic glycolysis ("Warburg effect") and the pentose phosphate pathway. Cancer cells harbor functional mitochondria, but many mutations in nuclear DNA-encoded mitochondrial genes and mitochondrial genome result in the mitochondrial metabolic reprogramming. The other characteristic of cancer cells is to maintain much higher ROS level than normal cells. Ironically, cancer cells overexpress the ROS-producing NADPH oxidase and the ROS-eliminating antioxidant enzymes, both of which enzyme systems share NADPH as a reducing power source. In this article, we review the complex connection between ROS and energy metabolisms in cancer cells.
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Affiliation(s)
- Sang Won Kang
- Department of Life Sciences, Research Center for Cell Homeostasis, Ewha Womans University, Seoul, 120-750, Republic of Korea,
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132
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Wang WG, Tang JW, Shi YM, Du X, Li XN, Wu HY, Jiang HY, Li Y, Pu JX, Sun HD. Laxiflorol A, the first example of 7,8:15,16-di-seco-15-nor-21-homo-ent-kauranoid from Isodon eriocalyx var. laxiflora. RSC Adv 2015. [DOI: 10.1039/c4ra12704h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Laxiflorol A (1), an unprecedented 7,8:15,16-di-seco-15-nor-21-homo-ent-kauranoid, and its precursor analogue, laxiflorol B (2), were isolated from the leaves of Isodon eriocalyx var. laxiflora.
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133
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Soethoudt M, Peskin AV, Dickerhof N, Paton LN, Pace PE, Winterbourn CC. Interaction of adenanthin with glutathione and thiol enzymes: selectivity for thioredoxin reductase and inhibition of peroxiredoxin recycling. Free Radic Biol Med 2014; 77:331-9. [PMID: 25289458 DOI: 10.1016/j.freeradbiomed.2014.09.025] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 09/19/2014] [Accepted: 09/19/2014] [Indexed: 01/17/2023]
Abstract
The diterpenoid, adenanthin, represses tumor growth and prolongs survival in mouse promyelocytic leukemia models (Liu et al., Nat. Chem. Biol. 8, 486, 2012). It was proposed that this was done by inactivating peroxiredoxins (Prxs) 1 and 2 through the formation of an adduct specifically on the resolving Cys residue. We confirmed that adenanthin underwent Michael addition to isolated Prx2, thereby inhibiting oxidation to a disulfide-linked dimer. However, contrary to the original report, both the peroxidatic and the resolving Cys residues could be derivatized. Glutathione also formed an adenanthin adduct, reacting with a second-order rate constant of 25±5 M(-1) s(-1). With 50 µM adenanthin, the peroxidatic and resolving Cys of Prx2 reacted with half-times of 7 and 40 min, respectively, compared with 10 min for GSH. When erythrocytes or Jurkat T cells were treated with adenanthin, we saw no evidence for a reaction with Prxs 1 or 2. Instead, adenanthin caused time- and concentration-dependent loss of GSH followed by dimerization of the Prxs. Prxs undergo continuous oxidation in cells and are normally recycled by thioredoxin reductase and thioredoxin. Our results indicate that Prx reduction was inhibited. We observed rapid inhibition of purified thioredoxin reductase (half-time 5 min with 2 µM adenanthin) and in cells, thioredoxin reductase was much more sensitive than GSH and loss of both preceded accumulation of oxidized Prxs. Thus, adenanthin is not a specific Prx inhibitor, and its reported antitumor and anti-inflammatory effects are more likely to involve more general inhibition of thioredoxin and/or glutathione redox pathways.
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Affiliation(s)
- Marjolein Soethoudt
- Centre for Free Radical Research, Department of Pathology, University of Otago Christchurch, Christchurch, New Zealand
| | - Alexander V Peskin
- Centre for Free Radical Research, Department of Pathology, University of Otago Christchurch, Christchurch, New Zealand
| | - Nina Dickerhof
- Centre for Free Radical Research, Department of Pathology, University of Otago Christchurch, Christchurch, New Zealand
| | - Louise N Paton
- Centre for Free Radical Research, Department of Pathology, University of Otago Christchurch, Christchurch, New Zealand
| | - Paul E Pace
- Centre for Free Radical Research, Department of Pathology, University of Otago Christchurch, Christchurch, New Zealand
| | - Christine C Winterbourn
- Centre for Free Radical Research, Department of Pathology, University of Otago Christchurch, Christchurch, New Zealand.
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Ye ZW, Zhang J, Townsend DM, Tew KD. Oxidative stress, redox regulation and diseases of cellular differentiation. Biochim Biophys Acta Gen Subj 2014; 1850:1607-21. [PMID: 25445706 DOI: 10.1016/j.bbagen.2014.11.010] [Citation(s) in RCA: 154] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 10/31/2014] [Accepted: 11/10/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND Within cells, there is a narrow concentration threshold that governs whether reactive oxygen species (ROS) induce toxicity or act as second messengers. SCOPE OF REVIEW We discuss current understanding of how ROS arise, facilitate cell signaling, cause toxicities and disease related to abnormal cell differentiation and those (primarily) sulfur based pathways that provide nucleophilicity to offset these effects. PRIMARY CONCLUSIONS Cellular redox homeostasis mediates a plethora of cellular pathways that determine life and death events. For example, ROS intersect with GSH based enzyme pathways to influence cell differentiation, a process integral to normal hematopoiesis, but also affecting a number of diverse cell differentiation related human diseases. Recent attempts to manage such pathologies have focused on intervening in some of these pathways, with the consequence that differentiation therapy targeting redox homeostasis has provided a platform for drug discovery and development. GENERAL SIGNIFICANCE The balance between electrophilic oxidative stress and protective biomolecular nucleophiles predisposes the evolution of modern life forms. Imbalances of the two can produce aberrant redox homeostasis with resultant pathologies. Understanding the pathways involved provides opportunities to consider interventional strategies. This article is part of a Special Issue entitled Redox regulation of differentiation and de-differentiation.
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Affiliation(s)
- Zhi-Wei Ye
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, 70 President St., DD410, Charleston, SC 29425, USA
| | - Jie Zhang
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, 70 President St., DD410, Charleston, SC 29425, USA
| | - Danyelle M Townsend
- Department of Pharmaceutical and Biomedical Sciences, Medical University of South Carolina, 274 Calhoun Street MSC 141, Charleston, SC 29425-1410, USA
| | - Kenneth D Tew
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, 70 President St., DD410, Charleston, SC 29425, USA.
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135
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Wang WG, Yan BC, Li XN, Du X, Wu HY, Zhan R, Li Y, Pu JX, Sun HD. 6,7-Seco-ent-kaurane-type diterpenoids from Isodon eriocalyx var. laxiflora. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.08.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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136
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Adenanthin targets peroxiredoxin I/II to kill hepatocellular carcinoma cells. Cell Death Dis 2014; 5:e1400. [PMID: 25188510 PMCID: PMC4540188 DOI: 10.1038/cddis.2014.345] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 06/01/2014] [Accepted: 07/10/2014] [Indexed: 12/19/2022]
Abstract
Adenanthin, a natural diterpenoid isolated from the leaves of Isodon adenanthus, has recently been reported to induce leukemic cell differentiation by targeting peroxiredoxins (Prx) I and II. On the other hand, increasing lines of evidence propose that these Prx proteins would become potential targets to screen drugs for the prevention and treatment of solid tumors. Therefore, it is of significance to explore the potential activities of adenanthin on solid tumor cells. Here, we demonstrate that Prx I protein is essential for the survival of hepatocellular carcinoma (HCC) cells, and adenanthin can kill these malignant liver cells in vitro and xenografts. We also show that the cell death-inducing activity of adenanthin on HCC cells is mediated by the increased reactive oxygen species (ROS) levels. Furthermore, the silencing of Prx I or Prx II significantly enhances the cytotoxic activity of adenanthin on HCC, whereas the ectopic expression of Prx I and Prx II but not their mutants of adenanthin-bound cysteines can rescue adenanthin-induced cytotoxicity in Prxs-silenced HCC cells. Taken together, our results propose that adenanthin targets Prx I/II to kill HCC cells and its therapeutic significance warrants to be further explored in HCC patients.
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137
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Song LL, Tu YY, Xia L, Wang WW, Wei W, Ma CM, Wen DH, Lei H, Xu HZ, Wu YL. Targeting catalase but not peroxiredoxins enhances arsenic trioxide-induced apoptosis in K562 cells. PLoS One 2014; 9:e104985. [PMID: 25115845 PMCID: PMC4130628 DOI: 10.1371/journal.pone.0104985] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 07/16/2014] [Indexed: 11/25/2022] Open
Abstract
Despite considerable efficacy of arsenic trioxide (As2O3) in acute promyelocytic leukemia (APL) treatment, other non-APL leukemias, such as chronic myeloid leukemia (CML), are less sensitive to As2O3 treatment. However, the underlying mechanism is not well understood. Here we show that relative As2O3-resistant K562 cells have significantly lower ROS levels than As2O3-sensitive NB4 cells. We compared the expression of several antioxidant enzymes in these two cell lines and found that peroxiredoxin 1/2/6 and catalase are expressed at high levels in K562 cells. We further investigated the possible role of peroxirdoxin 1/2/6 and catalase in determining the cellular sensitivity to As2O3. Interestingly, knockdown of peroxiredoxin 1/2/6 did not increase the susceptibility of K562 cells to As2O3. On the contrary, knockdown of catalase markedly enhanced As2O3-induced apoptosis. In addition, we provide evidence that overexpression of BCR/ABL cannot increase the expression of PRDX 1/2/6 and catalase. The current study reveals that the functional role of antioxidant enzymes is cellular context and treatment agents dependent; targeting catalase may represent a novel strategy to improve the efficacy of As2O3 in CML treatment.
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MESH Headings
- Antineoplastic Agents/pharmacology
- Apoptosis/drug effects
- Apoptosis/genetics
- Apoptosis/physiology
- Arsenic Trioxide
- Arsenicals/pharmacology
- Catalase/antagonists & inhibitors
- Catalase/genetics
- Catalase/metabolism
- Cell Line, Tumor
- Fusion Proteins, bcr-abl/genetics
- Fusion Proteins, bcr-abl/metabolism
- Gene Knockdown Techniques
- Humans
- K562 Cells
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Promyelocytic, Acute/drug therapy
- Leukemia, Promyelocytic, Acute/metabolism
- Leukemia, Promyelocytic, Acute/pathology
- Oxides/pharmacology
- Peroxiredoxins/antagonists & inhibitors
- Peroxiredoxins/genetics
- Peroxiredoxins/metabolism
- Reactive Oxygen Species/metabolism
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Affiliation(s)
- Li-Li Song
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yao-Yao Tu
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Xia
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei-Wei Wang
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Wei
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chun-Min Ma
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dong-Hua Wen
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hu Lei
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Han-Zhang Xu
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- * E-mail: (HX); (YW)
| | - Ying-Li Wu
- Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E-Institutes, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- * E-mail: (HX); (YW)
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138
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O'Leary PC, Terrile M, Bajor M, Gaj P, Hennessy BT, Mills GB, Zagozdzon A, O'Connor DP, Brennan DJ, Connor K, Li J, Gonzalez-Angulo AM, Sun HD, Pu JX, Pontén F, Uhlén M, Jirström K, Nowis DA, Crown JP, Zagozdzon R, Gallagher WM. Peroxiredoxin-1 protects estrogen receptor α from oxidative stress-induced suppression and is a protein biomarker of favorable prognosis in breast cancer. Breast Cancer Res 2014; 16:R79. [PMID: 25011585 PMCID: PMC4226972 DOI: 10.1186/bcr3691] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 07/01/2014] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION Peroxiredoxin-1 (PRDX1) is a multifunctional protein, acting as a hydrogen peroxide (H2O2) scavenger, molecular chaperone and immune modulator. Although differential PRDX1 expression has been described in many tumors, the potential role of PRDX1 in breast cancer remains highly ambiguous. Using a comprehensive antibody-based proteomics approach, we interrogated PRDX1 protein as a putative biomarker in estrogen receptor (ER)-positive breast cancer. METHODS An anti-PRDX1 antibody was validated in breast cancer cell lines using immunoblotting, immunohistochemistry and reverse phase protein array (RPPA) technology. PRDX1 protein expression was evaluated in two independent breast cancer cohorts, represented on a screening RPPA (n = 712) and a validation tissue microarray (n = 498). In vitro assays were performed exploring the functional contribution of PRDX1, with oxidative stress conditions mimicked via treatment with H2O2, peroxynitrite, or adenanthin, a PRDX1/2 inhibitor. RESULTS In ER-positive cases, high PRDX1 protein expression is a biomarker of improved prognosis across both cohorts. In the validation cohort, high PRDX1 expression was an independent predictor of improved relapse-free survival (hazard ratio (HR) = 0.62, 95% confidence interval (CI) = 0.40 to 0.96, P = 0.032), breast cancer-specific survival (HR = 0.44, 95% CI = 0.24 to 0.79, P = 0.006) and overall survival (HR = 0.61, 95% CI = 0.44 to 0.85, P = 0.004). RPPA screening of cancer signaling proteins showed that ERα protein was upregulated in PRDX1 high tumors. Exogenous H2O2 treatment decreased ERα protein levels in ER-positive cells. PRDX1 knockdown further sensitized cells to H2O2- and peroxynitrite-mediated effects, whilst PRDX1 overexpression protected against this response. Inhibition of PRDX1/2 antioxidant activity with adenanthin dramatically reduced ERα levels in breast cancer cells. CONCLUSIONS PRDX1 is shown to be an independent predictor of improved outcomes in ER-positive breast cancer. Through its antioxidant function, PRDX1 may prevent oxidative stress-mediated ERα loss, thereby potentially contributing to maintenance of an ER-positive phenotype in mammary tumors. These results for the first time imply a close connection between biological activity of PRDX1 and regulation of estrogen-mediated signaling in breast cancer.
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139
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A unified strategy for the synthesis of (−)-maoecrystal Z, (−)-trichorabdal A, and (−)-longikaurin E. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.071] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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140
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McFall-Ngai MJ. The importance of microbes in animal development: lessons from the squid-vibrio symbiosis. Annu Rev Microbiol 2014; 68:177-94. [PMID: 24995875 DOI: 10.1146/annurev-micro-091313-103654] [Citation(s) in RCA: 158] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Developmental biology is among the many subdisciplines of the life sciences being transformed by our increasing awareness of the role of coevolved microbial symbionts in health and disease. Most symbioses are horizontally acquired, i.e., they begin anew each generation. In such associations, the embryonic period prepares the animal to engage with the coevolved partner(s) with fidelity following birth or hatching. Once interactions are underway, the microbial partners drive maturation of tissues that are either directly associated with or distant from the symbiont populations. Animal alliances often involve complex microbial communities, such as those in the vertebrate gastrointestinal tract. A series of simpler-model systems is providing insight into the basic rules and principles that govern the establishment and maintenance of stable animal-microbe partnerships. This review focuses on what biologists have learned about the developmental trajectory of horizontally acquired symbioses through the study of the binary squid-vibrio model.
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141
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Oridonin induces NPM mutant protein translocation and apoptosis in NPM1c+ acute myeloid leukemia cells in vitro. Acta Pharmacol Sin 2014; 35:806-13. [PMID: 24902788 DOI: 10.1038/aps.2014.25] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Accepted: 03/24/2014] [Indexed: 12/24/2022] Open
Abstract
AIM Skewed cytoplasmic accumulation of NPM mutant protein (NPM1c+) is close related to leukemia pathogenesis. The aim of this study was to investigate whether oridonin, a diterpenoid isolated from the Chinese traditional medicine Rabdosia rubescens, was able to interfere with NPM1c+ protein trafficking and induce apoptosis in NPM1c+ acute myeloid leukemia cells in vitro. METHODS OCI-AML3 cell line harboring a NPM1 gene mutation was examined. Cell growth was detected by MTT assay. Cell apoptosis was evaluated using flow cytometry and Hoechst 33258 staining. The expression and subcellular localization of relevant proteins were detected by Western blot and immunofluorescent staining. The mRNA expression was detected by RT-PCR. RESULTS Oridonin (2-12 μmol/L) dose-dependently inhibited the viability of OCI-AML3 cells (the IC50 value was 3.27±0.23 μmol/L at 24 h). Moreover, oridonin induced OCI-AML3 cell apoptosis accompanied by activation of caspase-3 and nuclear translocation of NPM1c+ protein. Oridonin did not change the expression of Crm1 (the export receptor for nuclear export signal-containing proteins), but induced nuclear translocation of Crm1. Oridonin markedly increased the expression of nucleoporin98 (Nup98), which had an important role in Crm1-mediated nuclear protein export, and induced nuclear accumulation of Nup98. Furthermore, oridonin markedly increased the expression of p14arf and p53. CONCLUSION In NPM1c+ leukemia cells, oridonin induces NPM1c+ protein translocation into the nucleus possibly via nuclear accumulation of Crm1; the compound markedly increases p53 and p14arf expression, which may contribute to cell apoptosis.
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142
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Tanaka N, Tsuji E, Sakai K, Gonoi T, Kobayashi J. Hikiokoshins A-I, diterpenes from the leaves of Isodon japonicus. PHYTOCHEMISTRY 2014; 102:205-210. [PMID: 24702849 DOI: 10.1016/j.phytochem.2014.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 02/12/2014] [Accepted: 03/04/2014] [Indexed: 06/03/2023]
Abstract
Diterpenes, hikiokoshins A-I, and twelve known diterpenes were isolated from the leaves of Isodon japonicus (Burm. f.) H. Hara (Lamiaceae). The hikiokoshins A-I possess various skeletons such as ternifonane {hikiokoshin A}, ent-6,7:8,15-diseco-6,8-cyclokauran-7,20-olide {hikiokoshin B}, ent-6,7-secokauran-7,20-olide {hikiokoshin C}, and ent-7,20-epoxykaurane {hikiokoshins D-I}. Their structures were elucidated on the basis of spectroscopic analysis. Antimicrobial activities of hikiokoshins A and B were evaluated.
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Affiliation(s)
- Naonobu Tanaka
- Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Eri Tsuji
- Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Kanae Sakai
- Medicinal Mycology Research Center, Chiba University, Chiba 260-0856, Japan
| | - Tohru Gonoi
- Medicinal Mycology Research Center, Chiba University, Chiba 260-0856, Japan
| | - Jun'ichi Kobayashi
- Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan.
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143
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Muchowicz A, Firczuk M, Chlebowska J, Nowis D, Stachura J, Barankiewicz J, Trzeciecka A, Kłossowski S, Ostaszewski R, Zagożdżon R, Pu JX, Sun HD, Golab J. Adenanthin targets proteins involved in the regulation of disulphide bonds. Biochem Pharmacol 2014; 89:210-6. [PMID: 24630929 DOI: 10.1016/j.bcp.2014.02.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2013] [Revised: 02/26/2014] [Accepted: 02/27/2014] [Indexed: 11/30/2022]
Abstract
Adenanthin has been recently shown to inhibit the enzymatic activities of peroxiredoxins (Prdx) I and II through its functional α,β-unsaturated ketone group serving as a Michael acceptor. A similar group is found in SK053, a compound recently developed by our group to target the thioredoxin-thioredoxin reductase (Trx-TrxR) system. This work provides evidence that next to Prdx I and II adenanthin targets additional proteins including thioredoxin-thioredoxin reductase system as well as protein disulfide isomerase (PDI) that contain a characteristic structural motif, referred to as a thioredoxin fold. Adenanthin inhibits the activity of Trx-TR system and PDI in vitro in the insulin reduction assay and decreases the activity of Trx in cultured cells. Moreover, we identified Trx-1 as an adenanthin binding protein in cells incubated with biotinylated adenanthin as an affinity probe. The results of our studies indicate that adenanthin is a mechanism-selective, rather than an enzyme-specific inhibitor of enzymes containing readily accessible, nucleophilic cysteines. This observation might be of importance in considering potential therapeutic applications of adenanthin to include a range of diseases, where aberrant activity of Prdx, Trx-TrxR and PDI is involved in their pathogenesis.
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Affiliation(s)
- Angelika Muchowicz
- Department of Immunology, Center of Biostructure Research, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland
| | - Małgorzata Firczuk
- Department of Immunology, Center of Biostructure Research, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland
| | - Justyna Chlebowska
- Department of Immunology, Center of Biostructure Research, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland
| | - Dominika Nowis
- Department of Immunology, Center of Biostructure Research, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland; Genomic Medicine, Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland
| | - Joanna Stachura
- Department of Immunology, Center of Biostructure Research, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland
| | - Joanna Barankiewicz
- Department of Immunology, Center of Biostructure Research, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland
| | - Anna Trzeciecka
- Department of Immunology, Center of Biostructure Research, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland
| | - Szymon Kłossowski
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Ryszard Ostaszewski
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Radosław Zagożdżon
- Department of Immunology, Center of Biostructure Research, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland
| | - Jian-Xin Pu
- Kunming Institute of Botany, Chinese Academy of Science, Kunming, China
| | - Han-Dong Sun
- Kunming Institute of Botany, Chinese Academy of Science, Kunming, China.
| | - Jakub Golab
- Department of Immunology, Center of Biostructure Research, Medical University of Warsaw, Banacha 1A, 02-097 Warsaw, Poland; Institute of Physical Chemistry, Polish Academy of Sciences, Department 3, Warsaw, Poland.
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144
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Biological values of acupuncture and chinese herbal medicine: impact on the life science. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 2014:593921. [PMID: 24523824 PMCID: PMC3913290 DOI: 10.1155/2014/593921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 11/19/2013] [Indexed: 11/17/2022]
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145
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Wang J, Tan XF, Nguyen VS, Yang P, Zhou J, Gao M, Li Z, Lim TK, He Y, Ong CS, Lay Y, Zhang J, Zhu G, Lai SL, Ghosh D, Mok YK, Shen HM, Lin Q. A quantitative chemical proteomics approach to profile the specific cellular targets of andrographolide, a promising anticancer agent that suppresses tumor metastasis. Mol Cell Proteomics 2014; 13:876-86. [PMID: 24445406 DOI: 10.1074/mcp.m113.029793] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Drug target identification is a critical step toward understanding the mechanism of action of a drug, which can help one improve the drug's current therapeutic regime and expand the drug's therapeutic potential. However, current in vitro affinity-chromatography-based and in vivo activity-based protein profiling approaches generally face difficulties in discriminating specific drug targets from nonspecific ones. Here we describe a novel approach combining isobaric tags for relative and absolute quantitation with clickable activity-based protein profiling to specifically and comprehensively identify the protein targets of andrographolide (Andro), a natural product with known anti-inflammation and anti-cancer effects, in live cancer cells. We identified a spectrum of specific targets of Andro, which furthered our understanding of the mechanism of action of the drug. Our findings, validated through cell migration and invasion assays, showed that Andro has a potential novel application as a tumor metastasis inhibitor. Moreover, we have unveiled the target binding mechanism of Andro with a combination of drug analog synthesis, protein engineering, and mass-spectrometry-based approaches and determined the drug-binding sites of two protein targets, NF-κB and actin.
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Affiliation(s)
- Jigang Wang
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, 117543
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146
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Kawatani M, Osada H. Affinity-based target identification for bioactive small molecules. MEDCHEMCOMM 2014. [DOI: 10.1039/c3md00276d] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A variety of new approaches of affinity-based target identification for bioactive small molecules are being developed, facilitating drug development and understanding complicated biological processes.
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147
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Liu J, Mu C, Yue W, Li J, Ma B, Zhao L, Liu L, Chen Q, Yan C, Liu H, Hao X, Zhu Y. A diterpenoid derivate compound targets selenocysteine of thioredoxin reductases and induces Bax/Bak-independent apoptosis. Free Radic Biol Med 2013; 63:485-94. [PMID: 23732520 DOI: 10.1016/j.freeradbiomed.2013.05.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 05/23/2013] [Accepted: 05/24/2013] [Indexed: 02/02/2023]
Abstract
We have previously shown that the natural diterpenoid derivative S3 induced Bim upregulation and apoptosis in a Bax/Bak-independent manner. However, the exact molecular target(s) of S3 and the mechanism controlling Bim upregulation are still not clear. Here, we identify that S3 targets the selenoproteins TrxR1 and TrxR2 at the selenocysteine residue of the reactive center of the enzymes and inhibits their antioxidant activities. Consequently, cellular ROS is elevated, leading to the activation of FOXO3a, which contributes to Bim upregulation in Bax/Bak-deficient cells. Moreover, S3 retards tumor growth in subcutaneous xenograft tumors by inhibiting TrxR activity in vivo. Our studies delineate the signaling pathway controlling Bim upregulation, which results in Bax/Bak-independent apoptosis and provide evidence that the compounds can act as anticancer agents based on mammalian TrxRs inhibition.
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Affiliation(s)
- Jinhua Liu
- Tianjin Key Laboratory of Protein Science, College of Life Sciences, Nankai University, Tianjin 300071, China
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148
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Yin QQ, Liu CX, Wu YL, Wu SF, Wang Y, Zhang X, Hu XJ, Pu JX, Lu Y, Zhou HC, Wang HL, Nie H, Sun HD, Chen GQ. Preventive and Therapeutic Effects of Adenanthin on Experimental Autoimmune Encephalomyelitis by Inhibiting NF-κB Signaling. THE JOURNAL OF IMMUNOLOGY 2013; 191:2115-25. [DOI: 10.4049/jimmunol.1203546] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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149
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Yeoman JTS, Mak VW, Reisman SE. A Unified Strategy to ent-Kauranoid Natural Products: Total Syntheses of (−)-Trichorabdal A and (−)-Longikaurin E. J Am Chem Soc 2013; 135:11764-7. [DOI: 10.1021/ja406599a] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- John T. S. Yeoman
- The Warren and Katharine Schlinger Laboratory for Chemistry
and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
91125, United States
| | - Victor W. Mak
- The Warren and Katharine Schlinger Laboratory for Chemistry
and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
91125, United States
| | - Sarah E. Reisman
- The Warren and Katharine Schlinger Laboratory for Chemistry
and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
91125, United States
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150
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Zhan R, Li XN, Du X, Wang WG, Dong K, Su J, Li Y, Pu JX, Sun HD. Bioactive ent-kaurane diterpenoids from Isodon rosthornii. JOURNAL OF NATURAL PRODUCTS 2013; 76:1267-1277. [PMID: 23819871 DOI: 10.1021/np400190n] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Isorosthin A (1), the first 20-nor-enmein-type diterpenoid, and 15 new ent-kauranoids, isorosthins B-P (2-16), along with 22 known analogues were isolated from the aerial parts of Isodon rosthornii. The structures of 1-16 were elucidated by means of spectroscopic analysis. The relative configuration of 2 and the absolute configuration of 3 were determined by single-crystal X-ray diffraction. Cytotoxicity evaluation against five human tumor lines showed inhibitory effects by several of the compounds tested. Furthermore, 12 of the isolates exhibited inhibitory activity against nitric oxide production in LPS-activated RAW264.7 macrophages.
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MESH Headings
- Animals
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Crystallography, X-Ray
- Diterpenes, Kaurane/chemistry
- Diterpenes, Kaurane/isolation & purification
- Diterpenes, Kaurane/pharmacology
- Drug Screening Assays, Antitumor
- Drugs, Chinese Herbal/chemistry
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology
- Humans
- Isodon/chemistry
- Lipopolysaccharides/pharmacology
- Macrophages/drug effects
- Mice
- Molecular Conformation
- Molecular Structure
- Nitric Oxide/analysis
- Nuclear Magnetic Resonance, Biomolecular
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Affiliation(s)
- Rui Zhan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, People's Republic of China
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