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Yokoyama C, Sueyoshi Y, Ema M, Mori Y, Takaishi K, Hisatomi H. Induction of oxidative stress by anticancer drugs in the presence and absence of cells. Oncol Lett 2017; 14:6066-6070. [PMID: 29113247 DOI: 10.3892/ol.2017.6931] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 02/13/2017] [Indexed: 01/09/2023] Open
Abstract
Reactive oxygen species (ROS) are generated in the cell through multiple mechanisms. Intracellular ROS are rapidly detoxified by various enzymatic and non-enzymatic mechanisms; however, disruption of the oxidant-antioxidant balance causes oxidative stress and elicits cell damage. The oxidative stress induced by chemotherapy is known to cause side effects in patients with cancer. However, few studies have examined whether anticancer drugs induce oxidative stress in cancer cells. Furthermore, the precise mechanism by which anticancer drugs induce the generation of ROS remains unclear. In the present study, to investigate whether anticancer drugs induce oxidative stress, DLD-1 human colorectal cancer cells were treated with 20 different anticancer drugs and then stained with CellROX® ROS detection reagent. Furthermore, an oxygen radical absorbance capacity assay in the presence of copper was performed to estimate the oxidative activities of the anticancer drugs in the absence of cells. The data of the present study using assay methods in the presence and absence of cells suggest that nimustine, actinomycin D, doxorubicin, mitomycin C, mitoxantrone, carmofur, gemcitabine, mercaptopurine, camptothecin, paclitaxel, vinblastine, and vinorelbine are able to induce oxidative stress.
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Affiliation(s)
- Chikako Yokoyama
- Department of Biochemical Engineering, Graduate School of Science and Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan.,Laboratory of Cellular and Molecular Biochemistry, Department of Materials and Life Sciences, Seikei University, Musashino, Tokyo 180-8633, Japan
| | - Yuto Sueyoshi
- Laboratory of Cellular and Molecular Biochemistry, Department of Materials and Life Sciences, Seikei University, Musashino, Tokyo 180-8633, Japan
| | - Mika Ema
- Laboratory of Cellular and Molecular Biochemistry, Department of Materials and Life Sciences, Seikei University, Musashino, Tokyo 180-8633, Japan
| | - Yumi Mori
- Laboratory of Cellular and Molecular Biochemistry, Department of Materials and Life Sciences, Seikei University, Musashino, Tokyo 180-8633, Japan
| | - Kazuto Takaishi
- Graduate School of Natural Science and Technology, Okayama University, Okayama, Okayama 700-8530, Japan
| | - Hisashi Hisatomi
- Laboratory of Cellular and Molecular Biochemistry, Department of Materials and Life Sciences, Seikei University, Musashino, Tokyo 180-8633, Japan
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FTY720 Induces Autophagy-Associated Apoptosis in Human Oral Squamous Carcinoma Cells, in Part, through a Reactive Oxygen Species/Mcl-1-Dependent Mechanism. Sci Rep 2017; 7:5600. [PMID: 28717222 PMCID: PMC5514089 DOI: 10.1038/s41598-017-06047-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 06/07/2017] [Indexed: 11/14/2022] Open
Abstract
In this study, we interrogated the mechanism by which the immunosuppressant FTY720 mediates anticancer effects in oral squamous cell carcinoma (OSCC) cells. FTY720 differentially suppressed the viability of the OSCC cell lines SCC4, SCC25, and SCC2095 with IC50 values of 6.1, 6.3, and 4.5 μM, respectively. This antiproliferative effect was attributable to the ability of FTY720 to induce caspase-dependent apoptosis. Mechanistic evidence suggests that FTY720-induced apoptosis was associated with its ability to inhibit Akt-NF-κB signaling, to facilitate the proteasomal degradation of the antiapoptotic protein Mcl-1, and to increase reactive oxygen species (ROS) generation. Both overexpression of Mcl-1 and inhibition of ROS partially protected cells from FTY720-induced caspase-9 activation, PARP cleavage and cytotoxicity. In addition, FTY720 induced autophagy in OSCC cells, as manifested by LC3B-II conversion, decreased p62 expression, and accumulation of autophagosomes. Inhibition of autophagy by bafilomycin A1 protected cells from FTY720-induced apoptosis. Together, these findings suggest an intricate interplay between autophagy and apoptosis in mediating the tumor-suppressive effect in OSCC cells, which underlies the translational potential of FTY720 in fostering new therapeutic strategies for OSCC.
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Redox Regulating Enzymes and Connected MicroRNA Regulators Have Prognostic Value in Classical Hodgkin Lymphomas. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:2696071. [PMID: 28377796 PMCID: PMC5362709 DOI: 10.1155/2017/2696071] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 02/09/2017] [Indexed: 12/28/2022]
Abstract
There are no previous studies assessing the microRNAs that regulate antioxidant enzymes in Hodgkin lymphomas (HLs). We determined the mRNA levels of redox regulating enzymes peroxiredoxins (PRDXs) I–III, manganese superoxide dismutase (MnSOD), nuclear factor erythroid-derived 2-like 2 (Nrf2), and Kelch-like ECH-associated protein 1 (Keap1) from a carefully collected set of 41 classical HL patients before receiving any treatments. The levels of redoxmiRs, miRNAs known to regulate the above-mentioned enzymes, were also assessed, along with CD3, CD20, and CD30 protein expression. RNAs were isolated from freshly frozen lymph node samples and the expression levels were analyzed by qPCR. mir23b correlated inversely with CD3 and CD20 expressions (p = 0.00076; r = −0.523 and p = 0.0012; r = −0.507) and miR144 with CD3, CD20, and CD30 (p = 0.030; r = −0.352, p = 0.041; r = −0.333 and p = 0.0032; r = −0.47, resp.). High MnSOD mRNA levels associated with poor HL-specific outcome in the patients with advanced disease (p = 0.045) and high miR-122 levels associated with worse HL-specific survival in the whole patient population (p = 0.015). When standardized according to the CD30 expression, high miR212 and miR510 predicted worse relapse-free survival (p = 0.049 and p = 0.0058, resp.). In conclusion, several redoxmiRs and redox regulating enzyme mRNA levels associate with aggressive disease outcome and may also produce prognostic information in classical HL.
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54
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Akçakaya H, Tok S, Dal F, Cinar SA, Nurten R. β-carotene treatment alters the cellular death process in oxidative stress-induced K562 cells. Cell Biol Int 2017; 41:309-319. [PMID: 28035721 DOI: 10.1002/cbin.10727] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 12/24/2016] [Indexed: 11/09/2022]
Abstract
Oxidizing agents (e.g., H2 O2 ) cause structural and functional disruptions of molecules by affecting lipids, proteins, and nucleic acids. As a result, cellular mechanisms related to disrupted macro molecules are affected and cell death is induced. Oxidative damage can be prevented at a certain point by antioxidants or the damage can be reversed. In this work, we studied the cellular response against oxidative stress induced by H2 O2 and antioxidant-oxidant (β-carotene-H2 O2 ) interactions in terms of time, concentration, and treatment method (pre-, co-, and post) in K562 cells. We showed that co- or post-treatment with β-carotene did not protect cells from the damage of oxidative stress furthermore co- and post-β-carotene-treated oxidative stress induced cells showed similar results with only H2 O2 treated cells. However, β-carotene pre-treatment prevented oxidative damage induced by H2 O2 at concentrations lower than 1,000 μM compared with only H2 O2 -treated and co- and post-β-carotene-treated oxidative stress-induced cells in terms of studied cellular parameters (mitochondrial membrane potential [Δψm ], cell cycle and apoptosis). Prevention effect of β-carotene pre-treatment was lost at concentrations higher than 1,000 μM H2 O2 (2-10 mM). These findings suggest that β-carotene pre-treatment alters the effects of oxidative damage induced by H2 O2 and cell death processes in K562 cells.
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Affiliation(s)
- Handan Akçakaya
- Department of Biophysics, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Sabiha Tok
- Department of Biophysics, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Fulya Dal
- Department of Biophysics, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Suzan Adin Cinar
- Department of Immunology, Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Rustem Nurten
- Department of Biophysics, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
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Ortiz T, Villanueva-Paz M, Díaz-Parrado E, Illanes M, Fernández-Rodríguez A, Sánchez-Alcázar JA, de Miguel M. Amitriptyline down-regulates coenzyme Q10 biosynthesis in lung cancer cells. Eur J Pharmacol 2017; 797:75-82. [DOI: 10.1016/j.ejphar.2017.01.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 01/11/2017] [Accepted: 01/13/2017] [Indexed: 12/14/2022]
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Gao M, Yu F, Lv C, Choo J, Chen L. Fluorescent chemical probes for accurate tumor diagnosis and targeting therapy. Chem Soc Rev 2017; 46:2237-2271. [DOI: 10.1039/c6cs00908e] [Citation(s) in RCA: 527] [Impact Index Per Article: 75.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review focuses on small molecular ligand-targeted fluorescent imaging probes and fluorescent theranostics, including their design strategies and applications in clinical tumor treatment.
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Affiliation(s)
- Min Gao
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Yantai Institute of Coastal Zone Research
- Chinese Academy of Sciences
- Yantai 264003
- China
| | - Fabiao Yu
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Yantai Institute of Coastal Zone Research
- Chinese Academy of Sciences
- Yantai 264003
- China
| | - Changjun Lv
- Department of Respiratory Medicine
- Affiliated Hospital of Binzhou Medical University
- Binzhou 256603
- China
| | - Jaebum Choo
- Department of Bionano Engineering
- Hanyang University
- Ansan 426-791
- South Korea
| | - Lingxin Chen
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Yantai Institute of Coastal Zone Research
- Chinese Academy of Sciences
- Yantai 264003
- China
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Multiple myeloma cells' capacity to decompose H 2O 2 determines lenalidomide sensitivity. Blood 2016; 129:991-1007. [PMID: 28028022 DOI: 10.1182/blood-2016-09-738872] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 12/12/2016] [Indexed: 12/18/2022] Open
Abstract
Lenalidomide is an immunomodulatory drug (IMiDs) with clinical efficacy in multiple myeloma (MM) and other late B-cell neoplasms. Although cereblon (CRBN) is an essential requirement for IMiD action, the complete molecular and biochemical mechanisms responsible for lenalidomide-mediated sensitivity or resistance remain unknown. Here, we report that IMiDs work primarily via inhibition of peroxidase-mediated intracellular H2O2 decomposition in MM cells. MM cells with lower H2O2-decomposition capacity were more vulnerable to lenalidomide-induced H2O2 accumulation and associated cytotoxicity. CRBN-dependent degradation of IKZF1 and IKZF3 was a consequence of H2O2-mediated oxidative stress. Lenalidomide increased intracellular H2O2 levels by inhibiting thioredoxin reductase (TrxR) in cells expressing CRBN, causing accumulation of immunoglobulin light-chain dimers, significantly increasing endoplasmic reticulum stress and inducing cytotoxicity by activation of BH3-only protein Bim in MM. Other direct inhibitors of TrxR and thioredoxin (Trx) caused similar cytotoxicity, but in a CRBN-independent fashion. Our findings could help identify patients most likely to benefit from IMiDs and suggest direct TrxR or Trx inhibitors for MM therapy.
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58
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de Lima Junior EA, Yamashita AS, Pimentel GD, De Sousa LGO, Santos RVT, Gonçalves CL, Streck EL, de Lira FS, Rosa Neto JC. Doxorubicin caused severe hyperglycaemia and insulin resistance, mediated by inhibition in AMPk signalling in skeletal muscle. J Cachexia Sarcopenia Muscle 2016; 7:615-625. [PMID: 27239415 PMCID: PMC4863825 DOI: 10.1002/jcsm.12104] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 12/01/2015] [Accepted: 01/11/2016] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Cancer is considered the second leading cause of death in the world, and for the treatment of this disease, pharmacological intervention strategies are frequently based on chemotherapy. Doxorubicin (DOX) is one of the most widely used chemotherapeutic agents in clinical practice for treating a number of solid tumours. The treatment with DOX mimics some effects of cancer cachexia, such as anorexia, asthenia, decreases in fat and skeletal muscle mass and fatigue. We observed that treatment with DOX increased the systemic insulin resistance and caused a massive increase in glucose levels in serum. Skeletal muscle is a major tissue responsible for glucose uptake, and the positive role of AMPk protein (AMP-activated protein kinase) in GLUT-4 (Glucose Transporter type 4) translocation, is well established. With this, our aim was to assess the insulin sensitivity after treatment with DOX and involvement of AMPk signalling in skeletal muscle in this process. METHODS We used Wistar rats which received a single dose of doxorubicin (DOX group) or saline (CT group) intraperitoneally at a dose of 15 mg/kg b.w. The expression of proteins involved in insulin sensitivity, glucose uptake, inflammation, and activity of electron transport chain was assessed in extensor digitorum longus muscle, as well as the histological evaluation. In vitro assays were performed in L6 myocytes to assess glucose uptake after treatment with DOX. Agonist of AMPk [5-aminoimidazole-4-carboxamide (AICAR)] and the antioxidant n-acetyl cysteine were used in L6 cells to evaluate its effect on glucose uptake and cell viability. RESULTS The animals showed a significant insulin resistance, hyperglycaemia, and hyperinsulinemia. A decrease in the expression of AMKP and GLUT-4 was observed in the extensor digitorum longus muscle. Also in L6 cells, DOX leads to a decrease in glucose uptake, which is reversed with AICAR. CONCLUSIONS DOX leads to conditions similar to cachexia, with severe glucose intolerance both in vivo and in vitro. The decrease of AMPk activity of the protein is modulated negatively with DOX, and treatment with agonist of AMPk (AICAR) has proved to be a possible therapeutic target, which is able to recover glucose sensitivity in skeletal muscle.
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Affiliation(s)
- Edson Alves de Lima Junior
- Departamento de Biologia Celular e do Desenvolvimento Instituto de Ciências Biomédicas I Avenida Lineu Prestes 1524, Cidade Universitária 05508-900 São Paulo SP Brazil
| | - Alex Shimura Yamashita
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biomédicas Universidade de São Paulo São Paulo SP Brazil
| | - Gustavo Duarte Pimentel
- Laboratório de Investigação em Nutrição Clínica e Esportiva(Labince), Faculdade de Nutrição (FANUT) Universidade Federal de Goiás (UFG) Goiânia Goiás Brasil
| | - Luís G O De Sousa
- Department of Neurobiology, Physiology and Behavior University of California Davis Davis CA 95616 USA
| | | | - Cinara Ludvig Gonçalves
- Laboratório de Fisiopatologia Experimental Universidade do Extremo Sul Catarinense, Av. Universitária, 1105 Criciúma 88806-000 SC Brazil
| | - Emilio Luiz Streck
- Laboratório de Fisiopatologia Experimental Universidade do Extremo Sul Catarinense, Av. Universitária, 1105 Criciúma 88806-000 SC Brazil
| | - Fábio Santos de Lira
- Exercise and Immunometabolism Research Group, Department of Physical Education Universidade Estadual Paulista, UNESP Rua Roberto Simonsen, 305 19060-900 Presidente Prudente São Paulo Brazil
| | - Jose Cesar Rosa Neto
- Departamento de Biologia Celular e do Desenvolvimento Instituto de Ciências Biomédicas I Avenida Lineu Prestes 1524, Cidade Universitária 05508-900 São Paulo SP Brazil
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Jiang QW, Cheng KJ, Mei XL, Qiu JG, Zhang WJ, Xue YQ, Qin WM, Yang Y, Zheng DW, Chen Y, Wei MN, Zhang X, Lv M, Chen MW, Wei X, Shi Z. Synergistic anticancer effects of triptolide and celastrol, two main compounds from thunder god vine. Oncotarget 2016; 6:32790-804. [PMID: 26447544 PMCID: PMC4741730 DOI: 10.18632/oncotarget.5411] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 09/25/2015] [Indexed: 02/07/2023] Open
Abstract
Triptolide and celastrol are two main active compounds isolated from Thunder God Vine with the potent anticancer activity. However, the anticancer effect of triptolide in combination with celastrol is still unknown. In the present study, we demonstrated that the combination of triptolide with celastrol synergistically induced cell growth inhibition, cell cycle arrest at G2/M phase and apoptosis with the increased intracellular ROS accumulation in cancer cells. Pretreatment with ROS scavenger N-acetyl-L-cysteine dramatically blocked the apoptosis induced by co-treatment with triptolide and celastrol. Treatment with celastrol alone led to the decreased expressions of HSP90 client proteins including survivin, AKT, EGFR, which was enhanced by the addition of triptolide. Additionally, the celastrol-induced expression of HSP70 and HSP27 was abrogated by triptolide. In the nude mice with xenograft tumors, the lower-dose combination of triptolide with celastrol significantly inhibited the growth of tumors without obvious toxicity. Overall, triptolide in combination with celastrol showed outstanding synergistic anticancer effect in vitro and in vivo, suggesting that this beneficial combination may offer a promising treatment option for cancer patients.
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Affiliation(s)
- Qi-Wei Jiang
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Ke-Jun Cheng
- Chemical Biology Center, Lishui Institute of Agricultural Sciences, Lishui, Zhejiang, China.,National First-Class Key Discipline for Traditional Chinese Medicine of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Xiao-Long Mei
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Jian-Ge Qiu
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Wen-Ji Zhang
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - You-Qiu Xue
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Wu-Ming Qin
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Yang Yang
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Di-Wei Zheng
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Yao Chen
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Meng-Ning Wei
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Xu Zhang
- National First-Class Key Discipline for Traditional Chinese Medicine of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Min Lv
- Institute of Materia Medica, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Mei-Wan Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Xing Wei
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Zhi Shi
- Department of Cell Biology & Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
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Villanueva-Paz M, Cordero MD, Pavón AD, Vega BC, Cotán D, De la Mata M, Oropesa-Ávila M, Alcocer-Gomez E, de Lavera I, Garrido-Maraver J, Carrascosa J, Zaderenko AP, Muntané J, de Miguel M, Sánchez-Alcázar JA. Amitriptyline induces mitophagy that precedes apoptosis in human HepG2 cells. Genes Cancer 2016; 7:260-277. [PMID: 27738496 PMCID: PMC5059116 DOI: 10.18632/genesandcancer.114] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Systemic treatments for hepatocellular carcinoma (HCC) have been largely unsuccessful. This study investigated the antitumoral activity of Amitriptyline, a tricyclic antidepressant, in hepatoma cells. Amitriptyline-induced toxicity involved early mitophagy activation that subsequently switched to apoptosis. Amitriptyline induced mitochondria dysfunction and oxidative stress in HepG2 cells. Amitriptyline specifically inhibited mitochondrial complex III activity that is associated with decreased mitochondrial membrane potential (∆Ψm) and increased reactive oxygen species (ROS) production. Transmission electron microscopy (TEM) studies revealed structurally abnormal mitochondria that were engulfed by double-membrane structures resembling autophagosomes. Consistent with mitophagy activation, fluorescence microscopy analysis showed mitochondrial Parkin recruitment and colocalization of mitochondria with autophagosome protein markers. Pharmacological or genetic inhibition of autophagy exacerbated the deleterious effects of Amitriptyline on hepatoma cells and led to increased apoptosis. These results suggest that mitophagy acts as an initial adaptive mechanism of cell survival. However persistent mitochondrial damage induced extensive and lethal mitophagy, autophagy stress and autophagolysome permeabilization leading eventually to cell death by apoptosis. Amitriptyline also induced cell death in hepatoma cells lines with mutated p53 and non-sense p53 mutation. Our results support the hypothesis that Amitriptyline-induced mitochondrial dysfunction can be a useful therapeutic strategy for HCC treatment, especially in tumors showing p53 mutations and/or resistant to genotoxic treatments.
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Affiliation(s)
- Marina Villanueva-Paz
- Centro Andaluz de Biología de Desarrollo (CABD), Universidad Pablo de Olavide/CSIC/, Sevilla, Spain
| | - Mario D Cordero
- Facultad de Odontología, Universidad de Sevilla, Sevilla, Spain
| | - Ana Delgado Pavón
- Centro Andaluz de Biología de Desarrollo (CABD), Universidad Pablo de Olavide/CSIC/, Sevilla, Spain
| | - Beatriz Castejón Vega
- Centro Andaluz de Biología de Desarrollo (CABD), Universidad Pablo de Olavide/CSIC/, Sevilla, Spain
| | - David Cotán
- Centro Andaluz de Biología de Desarrollo (CABD), Universidad Pablo de Olavide/CSIC/, Sevilla, Spain
| | - Mario De la Mata
- Centro Andaluz de Biología de Desarrollo (CABD), Universidad Pablo de Olavide/CSIC/, Sevilla, Spain
| | - Manuel Oropesa-Ávila
- Centro Andaluz de Biología de Desarrollo (CABD), Universidad Pablo de Olavide/CSIC/, Sevilla, Spain
| | - Elizabet Alcocer-Gomez
- Centro Andaluz de Biología de Desarrollo (CABD), Universidad Pablo de Olavide/CSIC/, Sevilla, Spain
| | - Isabel de Lavera
- Centro Andaluz de Biología de Desarrollo (CABD), Universidad Pablo de Olavide/CSIC/, Sevilla, Spain
| | - Juan Garrido-Maraver
- Centro Andaluz de Biología de Desarrollo (CABD), Universidad Pablo de Olavide/CSIC/, Sevilla, Spain
| | - José Carrascosa
- Centro Andaluz de Biología de Desarrollo (CABD), Universidad Pablo de Olavide/CSIC/, Sevilla, Spain
| | - Ana Paula Zaderenko
- Sistemas Físicos, Químicos y Naturales-Universidad Pablo de Olavide, Sevilla, Spain
| | - Jordi Muntané
- Departmento de Cirugía General y Aparato Digestivo, Hospital Universitario Virgen del Rocío/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Manuel de Miguel
- Departamento de Citología e Histología Normal y Patológica, Facultad de Medicina, Universidad de Sevilla, Sevilla, Spain
| | - José Antonio Sánchez-Alcázar
- Centro Andaluz de Biología de Desarrollo (CABD), Universidad Pablo de Olavide/CSIC/, Sevilla, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), ISCIII, Madrid, Spain
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Cabrera J, Saavedra E, del Rosario H, Perdomo J, Loro JF, Cifuente DA, Tonn CE, García C, Quintana J, Estévez F. Gardenin B-induced cell death in human leukemia cells involves multiple caspases but is independent of the generation of reactive oxygen species. Chem Biol Interact 2016; 256:220-7. [DOI: 10.1016/j.cbi.2016.07.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/05/2016] [Accepted: 07/12/2016] [Indexed: 12/27/2022]
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Zhou Y, Yu Q, Qin X, Bhavsar D, Yang L, Chen Q, Zheng W, Chen L, Liu J. Improving the Anticancer Efficacy of Laminin Receptor-Specific Therapeutic Ruthenium Nanoparticles (RuBB-Loaded EGCG-RuNPs) via ROS-Dependent Apoptosis in SMMC-7721 Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:15000-12. [PMID: 26018505 DOI: 10.1021/acsami.5b02261] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Functionalization can promote the uptake of nanoparticles into cancer cells via receptor-mediated endocytosis, enabling them to exert their therapeutic effects. In this paper, epigallocatechin gallate (EGCG), which has a high binding affinity to 67 kDa laminin receptor (67LR) overexpressed in HCC cells, was employed in the present study to functionalized ruthenium nanoparticles (RuNPs) loaded with luminescent ruthenium complexes to achieve antiliver cancer efficacy. [Ru(bpy)2(4-B)] (ClO4)2·2H2O (RuBB)-loaded EGCG-RuNPs (bpy = 2,2'-bipyridine) showed small particle size with narrow distribution, better stability, and high selectivity between liver cancer and normal cells. The internalization of RuBB-loaded EGCG-RuNPs was inhibited by 67LR-blocking antibody or laminin, suggesting that 67LR-mediated endocytosis played an important role in the uptake into HCC cells. Moreover, transmission electron microscopy and confocal microscopic images showed that RuBB-loaded EGCG-RuNPs accumulated in the cytoplasm of SMMC-7721 cells. Furthermore, our results indicated that the EGCG-functionalized nanoparticles displayed enhanced anticancer effects in a target-specific manner. Concentrations of RuBB-loaded EGCG-RuNPs, nontoxic in normal L-02 cells, showed direct reactive oxygen species-dependent cytotoxic, pro-apoptotic, and anti-invasive effects in SMMC-7721 cells. Furthermore, in vivo animal study demonstrated that RuBB-loaded EGCG-RuNPs possessed high antitumor efficacy on tumor-bearing nude mice. It is encouraging to conclude that the multifunctional RuNPs may form the basis of new strategies on the treatment of liver cancer and other malignancies.
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Affiliation(s)
- Yanhui Zhou
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Qianqian Yu
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Xiuying Qin
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Dhairya Bhavsar
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Licong Yang
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Qingchang Chen
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Wenjing Zheng
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Lanmei Chen
- Department of Chemistry, Jinan University , Guangzhou 510632, China
| | - Jie Liu
- Department of Chemistry, Jinan University , Guangzhou 510632, China
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Chen XX, Xie FF, Zhu XJ, Lin F, Pan SS, Gong LH, Qiu JG, Zhang WJ, Jiang QW, Mei XL, Xue YQ, Qin WM, Shi Z, Yan XJ. Cyclin-dependent kinase inhibitor dinaciclib potently synergizes with cisplatin in preclinical models of ovarian cancer. Oncotarget 2016; 6:14926-39. [PMID: 25962959 PMCID: PMC4558126 DOI: 10.18632/oncotarget.3717] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 03/05/2015] [Indexed: 11/25/2022] Open
Abstract
Ovarian cancer is one of the most lethal of woman cancers, and its clinical therapeutic outcome currently is unsatisfied. Dinaciclib, a novel small molecule inhibitor of CDK1, CDK2, CDK5 and CDK9, is assessed in clinical trials for the treatment of several types of cancers. In this study, we investigated the anticancer effects and mechanisms of dinaciclib alone or combined with cisplatin in ovarian cancer. Dinaciclib alone actively induced cell growth inhibition, cell cycle arrest and apoptosis with the increased intracellular ROS levels, which were accompanied by obvious alterations of related proteins such as CDKs, Cyclins, Mcl-1, XIAP and survivin. Pretreatment with N-acety-L-cysteine significantly blocked ROS generation but only partially rescued apoptosis triggered by dinaciclib. Moreover, the combination of dinaciclib with cisplatin synergistically promoted cell cycle arrest and apoptosis, and inhibited the subcutaneous xenograft growth of ovarian cancer in nude mice. Altogether, dinaciclib potently synergizes with cisplatin in preclinical models of ovarian cancer, indicating this beneficial combinational therapy may be a promising strategy for treatment of ovarian cancer.
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Affiliation(s)
- Xiu-Xiu Chen
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Feng-Feng Xie
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiu-Jie Zhu
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Feng Lin
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shi-Shi Pan
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Li-Hua Gong
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jian-Ge Qiu
- Department of Cell Biology and Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Wen-Ji Zhang
- Department of Cell Biology and Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Qi-Wei Jiang
- Department of Cell Biology and Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Xiao-Long Mei
- Department of Cell Biology and Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - You-Qiu Xue
- Department of Cell Biology and Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Wu-Ming Qin
- Department of Cell Biology and Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Zhi Shi
- Department of Cell Biology and Institute of Biomedicine, National Engineering Research Center of Genetic Medicine, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China
| | - Xiao-Jian Yan
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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64
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Rombo R, Weiher H, Schmidt-Wolf IGH. Effect of chaetocin on renal cell carcinoma cells and cytokine-induced killer cells. GERMAN MEDICAL SCIENCE : GMS E-JOURNAL 2016; 14:Doc04. [PMID: 27141211 PMCID: PMC4836455 DOI: 10.3205/000231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 03/10/2016] [Indexed: 01/28/2023]
Abstract
We examined the cytotoxic effects of chaetocin on clear cell renal cell carcinoma (ccRCC) cells and the possibility to combine the effects of chaetocin with the effects of cytokine-induced killer cells (CIK) assayed by MTT assay and FACS analysis. Chaetocin is a thiodioxopiperazine produced by fungi belonging to the chaetomiaceae family. In 2007, it was first reported that chaetocin shows potent and selective ex vivo anti-cancer activity by inducing reactive oxygen species. CIK cells are generated from CD3+/CD56- T lymphocytes with double negative CD4-/CD8- phenotype that are isolated from human blood. The addition of distinct interleukins and antibodies results in the generation of CIK cells that are able to specifically target and destroy renal carcinoma cells. The results of this research state that the anti-ccRCC activity of chaetocin is weak and does not show a high grade of selectivity on clear cell renal cell carcinoma cells. Although the CIK cells show a high grade of selective anti-ccRCC activity, this effect could not be improved by the addition of chaetocin. So chaetocin seems to be no suitable agent for specific targeting ccRCC cells or for the combination therapy with CIK cells in renal cancer.
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Affiliation(s)
- Roman Rombo
- Center for Integrated Oncology (CIO), University of Bonn, Bonn, Germany; Hochschule Bonn-Rhein-Sieg, Rheinbach, Germany
| | - Hans Weiher
- Hochschule Bonn-Rhein-Sieg, Rheinbach, Germany
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Abstract
AbstractBuckwheat (Fagopyrum esculentum Moench, F. tataricum Gaertner) groats and flour have been established globally as nutritional foods because of their high levels of proteins, polyphenols and minerals. In some regions, buckwheat herb is used as a functional food. In the present study, reports of in vitro studies, preclinical and clinical trials dealing with the effect of buckwheat and its metabolites were reviewed. There are numerous reports of potential health benefits of consuming buckwheat, which may be in the form of food, dietary supplements, home remedies or possibly pharmaceutical drugs; however, adverse effects, including those resulting from contamination, must be considered. There are reports of antioxidative activity of buckwheat, which contains high levels of rutin and quercetin. On the other hand, both cytotoxic and antigenotoxic effects have been shown. Reduction of hyperlipidaemia, reduction of blood pressure and improved weight regulation have been suggested. Consuming buckwheat may have a beneficial effect on diabetes, since lower postprandial blood glucose and insulin response have been reported. In addition, buckwheat metabolites, such as rutin, may have intrinsic protective effects in preserving insulin signalling. Rutin has also been suggested to have potential therapeutic applications for the treatment of Alzheimer’s disease. The literature indicates that buckwheat is safe to consume and may have various beneficial effects on human health.
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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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Fest S, Soldati R, Christiansen NM, Zenclussen ML, Kilz J, Berger E, Starke S, Lode HN, Engel C, Zenclussen AC, Christiansen H. Targeting of heme oxygenase-1 as a novel immune regulator of neuroblastoma. Int J Cancer 2015; 138:2030-42. [PMID: 26595750 DOI: 10.1002/ijc.29933] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 11/06/2015] [Indexed: 12/31/2022]
Abstract
Heme oxygenase (HO)-1 catalyzes the degradation of cytotoxic heme into biliverdin and blocks antitumor immune responses, thus protecting cancer against host defense. Whether this scenario also applies to neuroblastoma (NB), the most common extracranial solid childhood tumor, is not known. Here, we demonstrate for the first time a prognostic relevance of HO-1 expression in samples from NB patients and show that targeting of HO-1 prevents both cancer resistance against cellular stress and immune escape in the syngeneic NXS2 A/J mouse model of NB. High HO-1 RNA expression in NB tissues emerged as unfavorable prognostic marker, in particular for patients older than 18 months as indicated by univariate as well as multivariate survival probability analyses including disease stage and MYCN status. On the basis of this observation we aimed to target HO-1 by systemic as well as tumor-specific zinc protoporphyrin-mediated HO-1 suppression in a syngeneic immunocompetent NB mouse model. This resulted in 50% reduction of primary tumor growth and a suppression of spontaneous liver metastases. Importantly, HO-1 inhibition abrogated immune cell paralysis affecting CD4 and CD8 T-effector cells. This in turn reverted HO-1-dependent immune escape mechanisms in NB by increasing NB apoptosis and improved DC maturation. In summary, HO-1 emerges as a novel immune regulator in NB and emerges as a promising target for the development of therapeutic approaches.
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Affiliation(s)
- Stefan Fest
- Laboratory of Pediatric Immunotherapy, Department of Pediatrics, Medical Faculty, Otto-von-Guericke-University of Magdeburg, Magdeburg, Germany.,Department of Pediatric Oncology, University of Leipzig, Leipzig, Germany
| | - Rocio Soldati
- Laboratory of Pediatric Immunotherapy, Department of Pediatrics, Medical Faculty, Otto-von-Guericke-University of Magdeburg, Magdeburg, Germany.,Department of Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke-University of Magdeburg, Magdeburg, Germany
| | | | - Maria L Zenclussen
- Department of Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke-University of Magdeburg, Magdeburg, Germany
| | - Jana Kilz
- Laboratory of Pediatric Immunotherapy, Department of Pediatrics, Medical Faculty, Otto-von-Guericke-University of Magdeburg, Magdeburg, Germany.,Department of Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke-University of Magdeburg, Magdeburg, Germany
| | - Elisa Berger
- Laboratory of Pediatric Immunotherapy, Department of Pediatrics, Medical Faculty, Otto-von-Guericke-University of Magdeburg, Magdeburg, Germany.,Department of Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke-University of Magdeburg, Magdeburg, Germany
| | - Sven Starke
- Department of Pediatric Oncology, University of Leipzig, Leipzig, Germany
| | - Holger N Lode
- Department of Pediatrics and Pediatric Hematology/Oncology, University Medicine Greifswald, Greifswald, Germany
| | - Christoph Engel
- Institute for Medical Informatics, Statistics and Epidemiology (IMISE), University of Leipzig, Leipzig, Germany
| | - Ana C Zenclussen
- Department of Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke-University of Magdeburg, Magdeburg, Germany
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Mut-Salud N, Álvarez PJ, Garrido JM, Carrasco E, Aránega A, Rodríguez-Serrano F. Antioxidant Intake and Antitumor Therapy: Toward Nutritional Recommendations for Optimal Results. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:6719534. [PMID: 26682013 PMCID: PMC4670692 DOI: 10.1155/2016/6719534] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 08/12/2015] [Indexed: 02/07/2023]
Abstract
The role of the induction of oxidative stress as the mechanism of action of many antitumor drugs is acquiring an increasing interest. In such cases, the antitumor therapy success may be conditioned by the antioxidants present in our own body, which can be synthesized de novo (endogenous) or incorporated through the diet and nutritional supplements (exogenous). In this paper, we have reviewed different aspects of antioxidants, including their classification, natural sources, importance in diet, consumption of nutritional supplements, and the impact of antioxidants on health. Moreover, we have focused especially on the study of the interaction between antioxidants and antitumor therapy, considering both radiotherapy and chemotherapy. In this regard, we found that the convenience of administration of antioxidants during cancer treatment still remains a very controversial issue. In general terms, antioxidants could promote or suppress the effectiveness of antitumor treatment and even protect healthy tissues against damage induced by oxidative stress. The effects may depend on many factors discussed in the paper. These factors should be taken into consideration in order to achieve precise nutritional recommendations for patients. The evidence at the moment suggests that the supplementation or restriction of exogenous antioxidants during cancer treatment, as appropriate, could contribute to improving its efficiency.
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Affiliation(s)
- Nuria Mut-Salud
- Institute of Biopathology and Regenerative Medicine, University of Granada, 18071 Granada, Spain
| | - Pablo Juan Álvarez
- Institute of Biopathology and Regenerative Medicine, University of Granada, 18071 Granada, Spain
| | - Jose Manuel Garrido
- Department of Cardiovascular Surgery, Virgen de las Nieves Hospital, 18014 Granada, Spain
| | - Esther Carrasco
- Institute of Biopathology and Regenerative Medicine, University of Granada, 18071 Granada, Spain
| | - Antonia Aránega
- Institute of Biopathology and Regenerative Medicine, University of Granada, 18071 Granada, Spain
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69
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González-Bártulos M, Aceves-Luquero C, Qualai J, Cussó O, Martínez MA, Fernández de Mattos S, Menéndez JA, Villalonga P, Costas M, Ribas X, Massaguer A. Pro-Oxidant Activity of Amine-Pyridine-Based Iron Complexes Efficiently Kills Cancer and Cancer Stem-Like Cells. PLoS One 2015; 10:e0137800. [PMID: 26368127 PMCID: PMC4569415 DOI: 10.1371/journal.pone.0137800] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 08/21/2015] [Indexed: 12/22/2022] Open
Abstract
Differential redox homeostasis in normal and malignant cells suggests that pro-oxidant-induced upregulation of cellular reactive oxygen species (ROS) should selectively target cancer cells without compromising the viability of untransformed cells. Consequently, a pro-oxidant deviation well-tolerated by nonmalignant cells might rapidly reach a cell-death threshold in malignant cells already at a high setpoint of constitutive oxidative stress. To test this hypothesis, we took advantage of a selected number of amine-pyridine-based Fe(II) complexes that operate as efficient and robust oxidation catalysts of organic substrates upon reaction with peroxides. Five of these Fe(II)-complexes and the corresponding aminopyridine ligands were selected to evaluate their anticancer properties. We found that the iron complexes failed to display any relevant activity, while the corresponding ligands exhibited significant antiproliferative activity. Among the ligands, none of which were hemolytic, compounds 1, 2 and 5 were cytotoxic in the low micromolar range against a panel of molecularly diverse human cancer cell lines. Importantly, the cytotoxic activity profile of some compounds remained unaltered in epithelial-to-mesenchymal (EMT)-induced stable populations of cancer stem-like cells, which acquired resistance to the well-known ROS inducer doxorubicin. Compounds 1, 2 and 5 inhibited the clonogenicity of cancer cells and induced apoptotic cell death accompanied by caspase 3/7 activation. Flow cytometry analyses indicated that ligands were strong inducers of oxidative stress, leading to a 7-fold increase in intracellular ROS levels. ROS induction was associated with their ability to bind intracellular iron and generate active coordination complexes inside of cells. In contrast, extracellular complexation of iron inhibited the activity of the ligands. Iron complexes showed a high proficiency to cleave DNA through oxidative-dependent mechanisms, suggesting a likely mechanism of cytotoxicity. In summary, we report that, upon chelation of intracellular iron, the pro-oxidant activity of amine-pyrimidine-based iron complexes efficiently kills cancer and cancer stem-like cells, thus providing functional evidence for an efficient family of redox-directed anti-cancer metallodrugs.
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Affiliation(s)
- Marta González-Bártulos
- Department of Biology, University of Girona, Girona, Catalunya, Spain
- Institut de Química Computacional i Catàlisi (IQCC), University of Girona, Girona, Catalunya, Spain
| | - Clara Aceves-Luquero
- Departament de Biologia Fonamental and Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, Illes Balears, Spain
| | - Jamal Qualai
- Department of Chemistry, University of Girona, Girona, Catalunya, Spain
| | - Olaf Cussó
- Department of Chemistry, University of Girona, Girona, Catalunya, Spain
- Institut de Química Computacional i Catàlisi (IQCC), University of Girona, Girona, Catalunya, Spain
| | - Mª Angeles Martínez
- Department of Biology, University of Girona, Girona, Catalunya, Spain
- Department of Chemistry, University of Girona, Girona, Catalunya, Spain
| | - Silvia Fernández de Mattos
- Departament de Biologia Fonamental and Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, Illes Balears, Spain
| | - Javier A. Menéndez
- Translational Research Laboratory, Catalan Institute of Oncology (ICO), Girona, Catalunya, Spain
- Girona Biomedical Research Institute (IDIBGI), Girona, Catalunya, Spain
- * E-mail: (AM); (XR); (MC); (JAM)
| | - Priam Villalonga
- Departament de Biologia Fonamental and Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, Illes Balears, Spain
| | - Miquel Costas
- Department of Chemistry, University of Girona, Girona, Catalunya, Spain
- Institut de Química Computacional i Catàlisi (IQCC), University of Girona, Girona, Catalunya, Spain
- * E-mail: (AM); (XR); (MC); (JAM)
| | - Xavi Ribas
- Department of Chemistry, University of Girona, Girona, Catalunya, Spain
- Institut de Química Computacional i Catàlisi (IQCC), University of Girona, Girona, Catalunya, Spain
- * E-mail: (AM); (XR); (MC); (JAM)
| | - Anna Massaguer
- Department of Biology, University of Girona, Girona, Catalunya, Spain
- * E-mail: (AM); (XR); (MC); (JAM)
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70
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Sajadimajd S, Yazdanparast R. Differential behaviors of trastuzumab-sensitive and -resistant SKBR3 cells treated with menadione reveal the involvement of Notch1/Akt/FOXO1 signaling elements. Mol Cell Biochem 2015; 408:89-102. [DOI: 10.1007/s11010-015-2485-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 06/18/2015] [Indexed: 01/05/2023]
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71
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Hsia KT, Liu CJ, Mar K, Lin LH, Lin CS, Cheng MF, Lee HS, Chiu SY. Impact of apurinic/apyrimidinic endonuclease 1/redox factor-1 on treatment response and survival in oral squamous cell carcinoma. Head Neck 2015; 38:550-9. [PMID: 25482590 DOI: 10.1002/hed.23927] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2014] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Apurinic/apyrimidinic endonuclease 1/redox factor-1 (APE1/Ref-1) is a multifunctional protein involved in DNA repair and redox signaling. The purpose of this study was to investigate the relationship between APE1/Ref-1 expression and clinicopathological features, survival, and treatment response in patients with oral squamous cell carcinoma (OSCC) and cell lines. METHODS APE1/Ref-1 expression in OSCC was evaluated by immunohistochemistry, and its relationship to patient outcomes and treatment response was assessed statistically. The effects of stable short hairpin (sh)RNA-mediated knockdown of APE1/Ref-1 on cell survival, migration, and chemoradiation sensitivity were determined in OSCC cell lines. RESULTS APE1/Ref-1 immunostaining was correlated with positive lymph node status, and higher APE1/Ref-1 expression was significantly associated with poor prognosis and reduced treatment response. Consistent with the clinical studies, APE1/Ref-1 expression in OSCC cell lines was implicated in the regulation of migration and cisplatin-induced apoptosis. CONCLUSION Elevated APE1/Ref-1 expression may be used to predict poor survival and may confer chemoresistance in OSCC.
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Affiliation(s)
- Kan-Tai Hsia
- Institute of Oral Biology, School of Dentistry, National Yang-Ming University, Taipei, Taiwan
| | - Chung-Ji Liu
- Institute of Oral Biology, School of Dentistry, National Yang-Ming University, Taipei, Taiwan.,Department of Oral and Maxillofacial Surgery, Taipei Mackay Memorial Hospital, Taipei, Taiwan
| | - Kwei Mar
- Department of Dentistry, Zhongxiao Branch, Taipei City Hospital, Taipei, Taiwan
| | - Li-Han Lin
- Institute of Oral Biology, School of Dentistry, National Yang-Ming University, Taipei, Taiwan
| | - Chun-Shu Lin
- Department of Radiation Oncology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Ming-Fang Cheng
- Institute of Oral Biology, School of Dentistry, National Yang-Ming University, Taipei, Taiwan.,Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,Division of Histological and Clinical Pathology, Hualien Armed Forced General Hospital, Hualien, Taiwan
| | - Herng-Sheng Lee
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Shang-Yi Chiu
- Institute of Oral Biology, School of Dentistry, National Yang-Ming University, Taipei, Taiwan
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Kim SH, Kang YJ, Sung B, Kim DH, Lim HS, Kim HR, Kim SJ, Yoon JH, Moon HR, Chung HY, Kim ND. MHY-449, a novel dihydrobenzofuro[4,5-b][1,8]naphthyridin-6-one derivative, mediates oxidative stress-induced apoptosis in AGS human gastric cancer cells. Oncol Rep 2015; 34:288-94. [PMID: 25998412 DOI: 10.3892/or.2015.3984] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 04/02/2015] [Indexed: 11/06/2022] Open
Abstract
MHY-449 is a novel dihydrobenzofuro[4,5-b][1,8]naphthyridin-6-one derivative designed and synthesized as a potential anticancer agent. The present study aimed to examine the anticancer activity and underlying mechanism of MHY-449. The cell viability assay performed in AGS human gastric carcinoma cells demonstrated that MHY-449 inhibited cell proliferation in a concentration-dependent manner. MHY-449 induced AGS cell death via apoptosis. The underlying molecular mechanism of MHY-449-mediated apoptosis was also investigated. MHY-449 promoted the upregulation of Fas and Fas-ligand, and activation of caspase-8, suggesting the involvement of a Fas-mediated extrinsic pathway in MHY-449-induced apoptosis. In addition, it was found that MHY-449-induced apoptosis was accompanied by the upregulation of Bax, p21(WAF1/CIP1), p27(KIP1), and p53 and suppression of Bcl-2. MHY-449 exposure activated the caspase cascade and subsequent poly(ADP-ribose) polymerase (PARP) cleavage. Furthermore, the pan-caspase inhibitor, Z-VAD-FMK, significantly attenuated MHY-449-induced apoptosis, indicating that the apoptosis was caspase-dependent. Moreover, the apoptogenic effect of MHY-449 was reactive oxygen species (ROS)-dependent. This result was confirmed by the induction of ROS by MHY-449 and by evidence that the scavenging of ROS by N-acetyl-L-cysteine inhibited MHY-449-induced cell death. Taken together, these results demonstrated that MHY-449 triggers apoptosis via caspase activation and ROS production. This result provides a novel mechanistic explanation and a basis for developing this compound as a novel candidate for human cancer therapy.
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Affiliation(s)
- Seon Hee Kim
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Yong Jung Kang
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Bokyung Sung
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Dong Hwan Kim
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Hyun Sook Lim
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Hye Rim Kim
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Seong Jin Kim
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Jeong-Hyun Yoon
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Hyung Ryong Moon
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Hae Young Chung
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
| | - Nam Deuk Kim
- College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Busan 609-735, Republic of Korea
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Kuusisto MEL, Haapasaari KM, Turpeenniemi-Hujanen T, Jantunen E, Soini Y, Peroja P, Bloigu R, Karihtala P, Kuittinen O. High intensity of cytoplasmic peroxiredoxin VI expression is associated with adverse outcome in diffuse large B-cell lymphoma independently of International Prognostic Index. J Clin Pathol 2015; 68:552-6. [PMID: 25935550 DOI: 10.1136/jclinpath-2014-202771] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Accepted: 03/18/2015] [Indexed: 11/03/2022]
Abstract
AIMS Diffuse large B-cell lymphoma (DLBCL) is an aggressive and potentially fatal disease. Prediction of risk of relapse is based on clinical markers. There is a need for more accurate biomarkers to select patients for more aggressive first-line treatments. Peroxiredoxins (Prxs) are a family of potent antioxidant proteins. Their prognostic role in DLBCL is unknown. METHODS Altogether, 103 diagnostic biopsy samples from patients with DLBCL were immunohistochemically stained for Prxs I, II, III, V and VI. RESULTS Strong Prx VI expression was associated with the presence of B-symptoms. There were no other significant associations with traditional risk factors. Five-year disease-specific survival was 68.6% in patients with high cytoplasmic Prx VI intensity vs 97.0% in those with low intensity. In multivariate analysis, high Prx VI expression (HR 12.846, 95% CI 1.722 to 95.807, p=0.013) was an independent risk factor of lymphoma-associated death not related to International Prognostic Index score (HR 2.514, 95% CI 1.040 to 6.073, p=0.041). CONCLUSIONS High intensity of cytoplasmic Prx VI expression in pretreatment DLBCL samples predicts worse outcome in patients with DLBCL. Whether Prx VI is associated with chemoresistance, and therefore a poorer outcome, needs to be evaluated. If Prx VI is a predictive marker and it proves causality, it would be crucial to study Prx VI ability to become a target enzyme for treatment.
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Affiliation(s)
- Milla Elvi Linnea Kuusisto
- Department of Oncology and Radiotherapy, University of Oulu, Medical Research Center and Oulu University Hospital, Oulu, Finland
| | | | - Taina Turpeenniemi-Hujanen
- Department of Oncology and Radiotherapy, University of Oulu, Medical Research Center and Oulu University Hospital, Oulu, Finland
| | - Esa Jantunen
- Department of Internal Medicine, Institute of Clinical Medicine, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
| | - Ylermi Soini
- Department of Pathology, University of Eastern Finland and Kuopio University Hospital, Cancer Center of Eastern Finland, Kuopio, Finland
| | - Pekka Peroja
- Department of Oncology and Radiotherapy, University of Oulu, Medical Research Center and Oulu University Hospital, Oulu, Finland
| | - Risto Bloigu
- Medical Informatics and Statistics Research Group, University of Oulu, Oulu, Finland
| | - Peeter Karihtala
- Department of Oncology and Radiotherapy, University of Oulu, Medical Research Center and Oulu University Hospital, Oulu, Finland
| | - Outi Kuittinen
- Department of Oncology and Radiotherapy, University of Oulu, Medical Research Center and Oulu University Hospital, Oulu, Finland
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Li Y, Wu Y, Cui X, Wang Z. NFκB/p65 activation is involved in regulation of rBTI-induced glucocorticoid receptor expression in MCF-7 cell lines. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.03.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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High-dose intravenous vitamin C combined with cytotoxic chemotherapy in patients with advanced cancer: a phase I-II clinical trial. PLoS One 2015; 10:e0120228. [PMID: 25848948 PMCID: PMC4388666 DOI: 10.1371/journal.pone.0120228] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 01/27/2015] [Indexed: 12/17/2022] Open
Abstract
Background Biological and some clinical evidence suggest that high-dose intravenous vitamin C (IVC) could increase the effectiveness of cancer chemotherapy. IVC is widely used by integrative and complementary cancer therapists, but rigorous data are lacking as to its safety and which cancers and chemotherapy regimens would be the most promising to investigate in detail. Methods and Findings We carried out a phase I-II safety, tolerability, pharmacokinetic and efficacy trial of IVC combined with chemotherapy in patients whose treating oncologist judged that standard-of-care or off-label chemotherapy offered less than a 33% likelihood of a meaningful response. We documented adverse events and toxicity associated with IVC infusions, determined pre- and post-chemotherapy vitamin C and oxalic acid pharmacokinetic profiles, and monitored objective clinical responses, mood and quality of life. Fourteen patients were enrolled. IVC was safe and generally well tolerated, although some patients experienced transient adverse events during or after IVC infusions. The pre- and post-chemotherapy pharmacokinetic profiles suggested that tissue uptake of vitamin C increases after chemotherapy, with no increase in urinary oxalic acid excretion. Three patients with different types of cancer experienced unexpected transient stable disease, increased energy and functional improvement. Conclusions Despite IVC’s biological and clinical plausibility, career cancer investigators currently ignore it while integrative cancer therapists use it widely but without reporting the kind of clinical data that is normally gathered in cancer drug development. The present study neither proves nor disproves IVC’s value in cancer therapy, but it provides practical information, and indicates a feasible way to evaluate this plausible but unproven therapy in an academic environment that is currently uninterested in it. If carried out in sufficient numbers, simple studies like this one could identify specific clusters of cancer type, chemotherapy regimen and IVC in which exceptional responses occur frequently enough to justify appropriately focused clinical trials. Trial Registration ClinicalTrials.gov NCT01050621
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Fico A, Alfano D, Valentino A, Vasta V, Cavalcanti E, Travali S, Patriarca EJ, Caputo E. c-Myc modulation: a key role in melanoma drug response. Cancer Biol Ther 2015; 16:1375-86. [PMID: 25835050 DOI: 10.1080/15384047.2015.1030546] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Understanding molecular mechanisms involved in melanoma resistance to drugs is a big challenge. Experimental evidences suggested a correlation between mutational status in B-RAF and melanoma cell susceptibility to drugs, such as paclitaxel, doxorubicin and temozolomide, which generate an accumulation of hydrogen peroxide (H2O2) in the cells. We investigated the survival phenotype and the protein level of c-myc, a B-RAF target molecule, in melanoma cells, carrying a different mutational status in B-RAF, upon paclitaxel, doxorubicin and H2O2 treatment. For the first time, we reported c-myc modulation is critical for melanoma drug response. It appeared drug-specific and post-transcriptionally driven through PP2A; in correlation, cell pre-treatment with okadaic acid (OA), a specific PP2A inhibitor, as well as PP2A silencing of melanoma cells, was able to increase melanoma cell drug-sensitivity and c-myc protein level. This is relevant for designing efficacious therapeutic strategies in melanoma.
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Affiliation(s)
- Annalisa Fico
- a Institute of Genetics and Biophysics; A Buzzati-Traverso ; Naples , Italy.,d These authors equally contributed to this work
| | - Daniela Alfano
- a Institute of Genetics and Biophysics; A Buzzati-Traverso ; Naples , Italy.,d These authors equally contributed to this work
| | - Anna Valentino
- a Institute of Genetics and Biophysics; A Buzzati-Traverso ; Naples , Italy
| | - Valeria Vasta
- b Università degli Studi di Catania; Dipartimento di Scienze Bio-Mediche ; Catania , Italy
| | | | - Salvatore Travali
- b Università degli Studi di Catania; Dipartimento di Scienze Bio-Mediche ; Catania , Italy
| | | | - Emilia Caputo
- a Institute of Genetics and Biophysics; A Buzzati-Traverso ; Naples , Italy.,b Università degli Studi di Catania; Dipartimento di Scienze Bio-Mediche ; Catania , Italy
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Sukumari-Ramesh S, Prasad N, Alleyne CH, Vender JR, Dhandapani KM. Overexpression of Nrf2 attenuates Carmustine-induced cytotoxicity in U87MG human glioma cells. BMC Cancer 2015; 15:118. [PMID: 25851054 PMCID: PMC4365816 DOI: 10.1186/s12885-015-1134-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 02/24/2015] [Indexed: 01/07/2023] Open
Abstract
Background Malignant glioma is one of the most devastating tumors in adults with poor patient prognosis. Notably, glioma often exhibits resistance to conventional chemotherapeutic approaches, complicating patient treatments. However, the molecular mediators involved in tumor chemoresistance remain poorly defined, creating a barrier to the successful management of glioma. In the present study, we hypothesized that the antioxidant transcription factor, Nrf2 (nuclear factor erythroid-derived 2 like 2), attenuates glioma cytotoxicity to Carmustine (BCNU), a widely used chemotherapeutic agent known to modulate cellular oxidative balance. Methods To test the hypothesis, we employed human malignant glioma cell line, U87MG and overexpression of Nrf2 in glioma cells was achieved using both pharmacological and genetic approaches. Results Notably, induction of Nrf2 was associated with increased expression of heme oxygenase-1 (HO-1), a stress inducible enzyme involved in anti-oxidant defense. In addition, over expression of Nrf2 in U87MG cells significantly attenuated the cytotoxicity of Carmustine as evidenced by both cellular viability assay and flow cytometry analysis. Consistent with this, antioxidants such as glutathione and N-acetyl cysteine significantly reduced Carmustine mediated glioma cytotoxicity. Conclusions Taken together, these data strongly implicate an unexplored role of Nrf2 in glioma resistance to Carmustine and raise the possible use of Nrf2 inhibitors as adjunct to Carmustine for the treatment of malignant glioma. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1134-z) contains supplementary material, which is available to authorized users.
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Responses of solid tumor cells in DMEM to reactive oxygen species generated by non-thermal plasma and chemically induced ROS systems. Sci Rep 2015; 5:8587. [PMID: 25715710 PMCID: PMC4341198 DOI: 10.1038/srep08587] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 01/27/2015] [Indexed: 02/08/2023] Open
Abstract
In this study, we assessed the role of different reactive oxygen species (ROS) generated by soft jet plasma and chemical-induced ROS systems with regard to cell death in T98G, A549, HEK293 and MRC5 cell lines. For a comparison with plasma, we generated superoxide anion (O2−), hydroxyl radical (HO·), and hydrogen peroxide (H2O2) with chemicals inside an in vitro cell culture. Our data revealed that plasma decreased the viability and intracellular ATP values of cells and increased the apoptotic population via a caspase activation mechanism. Plasma altered the mitochondrial membrane potential and eventually up-regulated the mRNA expression levels of BAX, BAK1 and H2AX gene but simultaneously down-regulated the levels of Bcl-2 in solid tumor cells. Moreover, a western blot analysis confirmed that plasma also altered phosphorylated ERK1/2/MAPK protein levels. At the same time, using ROS scavengers with plasma, we observed that scavengers of HO· (mannitol) and H2O2 (catalase and sodium pyruvate) attenuated the activity of plasma on cells to a large extent. In contrast, radicals generated by specific chemical systems enhanced cell death drastically in cancer as well as normal cell lines in a dose-dependent fashion but not specific with regard to the cell type as compared to plasma.
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79
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Krüger M, Pabst AM, Al-Nawas B, Horke S, Moergel M. Paraoxonase-2 (PON2) protects oral squamous cell cancer cells against irradiation-induced apoptosis. J Cancer Res Clin Oncol 2015; 141:1757-66. [DOI: 10.1007/s00432-015-1941-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Accepted: 02/16/2015] [Indexed: 12/14/2022]
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80
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Morikawa Y, Kezuka C, Endo S, Ikari A, Soda M, Yamamura K, Toyooka N, El-Kabbani O, Hara A, Matsunaga T. Acquisition of doxorubicin resistance facilitates migrating and invasive potentials of gastric cancer MKN45 cells through up-regulating aldo-keto reductase 1B10. Chem Biol Interact 2015; 230:30-9. [PMID: 25686905 DOI: 10.1016/j.cbi.2015.02.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 02/02/2015] [Accepted: 02/06/2015] [Indexed: 12/12/2022]
Abstract
Continuous exposure to doxorubicin (DOX) accelerates hyposensitivity to the drug-elicited lethality of gastric cells, with increased risks of the recurrence and serious cardiovascular side effects. However, the detailed mechanisms underlying the reduction of DOX sensitivity remain unclear. In this study, we generated a DOX-resistant variant upon continuously treating human gastric cancer MKN45 cells with incremental concentrations of the drug, and investigated whether the gain of DOX resistance influences gene expression of four aldo-keto reductases (AKRs: 1B10, 1C1, 1C2 and 1C3). RT-PCR analysis revealed that among the enzymes AKR1B10 is most highly up-regulated during the chemoresistance induction. The up-regulation of AKR1B10 was confirmed by analyses of Western blotting and enzyme activity. The DOX sensitivity of MKN45 cells was reduced and elevated by overexpression and inhibition of AKR1B10, respectively. Compared to the parental MKN45 cells, the DOX-resistant cells had higher migrating and invasive abilities, which were significantly suppressed by addition of AKR1B10 inhibitors. Zymographic and real-time PCR analyses also revealed significant increases in secretion and expression of matrix metalloproteinase (MMP) 2 associated with DOX resistance. Moreover, the overexpression of AKR1B10 in the parental cells remarkably facilitated malignant progression (elevation of migrating and invasive potentials) and MMP2 secretion, which were lowered by the AKR1B10 inhibitors. These results suggest that AKR1B10 is a DOX-resistance gene in the gastric cancer cells, and is responsible for elevating the migrating and invasive potentials of the cells through induction of MMP2.
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Affiliation(s)
- Yoshifumi Morikawa
- Laboratory of Biochemistry, Gifu Pharmaceutical University, Gifu 501-1196, Japan
| | - Chihiro Kezuka
- Laboratory of Biochemistry, Gifu Pharmaceutical University, Gifu 501-1196, Japan
| | - Satoshi Endo
- Laboratory of Biochemistry, Gifu Pharmaceutical University, Gifu 501-1196, Japan
| | - Akira Ikari
- Laboratory of Biochemistry, Gifu Pharmaceutical University, Gifu 501-1196, Japan
| | - Midori Soda
- Laboratory of Clinical Pharmacy, School of Pharmacy, Aichi Gakuin University, Nagoya 464-8650, Japan
| | - Keiko Yamamura
- Laboratory of Clinical Pharmacy, School of Pharmacy, Aichi Gakuin University, Nagoya 464-8650, Japan
| | - Naoki Toyooka
- Graduate School of Science and Technology for Research, University of Toyama, Toyama 930-8555, Japan
| | - Ossama El-Kabbani
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Akira Hara
- Faculty of Engineering, Gifu University, Gifu 501-1193, Japan
| | - Toshiyuki Matsunaga
- Laboratory of Biochemistry, Gifu Pharmaceutical University, Gifu 501-1196, Japan.
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Noble M, Mayer-Pröschel M, Li Z, Dong T, Cui W, Pröschel C, Ambeskovic I, Dietrich J, Han R, Yang YM, Folts C, Stripay J, Chen HY, Stevens BM. Redox biology in normal cells and cancer: restoring function of the redox/Fyn/c-Cbl pathway in cancer cells offers new approaches to cancer treatment. Free Radic Biol Med 2015; 79:300-23. [PMID: 25481740 PMCID: PMC10173888 DOI: 10.1016/j.freeradbiomed.2014.10.860] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 10/29/2014] [Accepted: 10/30/2014] [Indexed: 12/12/2022]
Abstract
This review discusses a unique discovery path starting with novel findings on redox regulation of precursor cell and signaling pathway function and identification of a new mechanism by which relatively small changes in redox status can control entire signaling networks that regulate self-renewal, differentiation, and survival. The pathway central to this work, the redox/Fyn/c-Cbl (RFC) pathway, converts small increases in oxidative status to pan-activation of the c-Cbl ubiquitin ligase, which controls multiple receptors and other proteins of central importance in precursor cell and cancer cell function. Integration of work on the RFC pathway with attempts to understand how treatment with systemic chemotherapy causes neurological problems led to the discovery that glioblastomas (GBMs) and basal-like breast cancers (BLBCs) inhibit c-Cbl function through altered utilization of the cytoskeletal regulators Cool-1/βpix and Cdc42, respectively. Inhibition of these proteins to restore normal c-Cbl function suppresses cancer cell division, increases sensitivity to chemotherapy, disrupts tumor-initiating cell (TIC) activity in GBMs and BLBCs, controls multiple critical TIC regulators, and also allows targeting of non-TICs. Moreover, these manipulations do not increase chemosensitivity or suppress division of nontransformed cells. Restoration of normal c-Cbl function also allows more effective harnessing of estrogen receptor-α (ERα)-independent activities of tamoxifen to activate the RFC pathway and target ERα-negative cancer cells. Our work thus provides a discovery strategy that reveals mechanisms and therapeutic targets that cannot be deduced by standard genetics analyses, which fail to reveal the metabolic information, isoform shifts, protein activation, protein complexes, and protein degradation critical to our discoveries.
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Affiliation(s)
- Mark Noble
- Department of Biomedical Genetics and University of Rochester Stem Cell and Regenerative Medicine Institute, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Margot Mayer-Pröschel
- Department of Biomedical Genetics and University of Rochester Stem Cell and Regenerative Medicine Institute, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Zaibo Li
- Department of Pathology, Ohio State University Wexner Medical Center, 410W 10th Avenue, E403 Doan Hall, Columbus, OH 43210-1240, USA.
| | - Tiefei Dong
- University of Michigan Tech Transfer, 1600 Huron Pkwy, 2nd Floor, Building 520, Ann Arbor, MI 48109-2590, USA.
| | - Wanchang Cui
- Department of Radiation Oncology, University of Maryland School of Medicine,10 South Pine Street, MSTF Room 600, Baltimore, MD 21201, USA.
| | - Christoph Pröschel
- Department of Biomedical Genetics and University of Rochester Stem Cell and Regenerative Medicine Institute, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Ibro Ambeskovic
- Department of Biomedical Genetics and University of Rochester Stem Cell and Regenerative Medicine Institute, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Joerg Dietrich
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Yawkey 9E, Boston, MA 02114, USA.
| | - Ruolan Han
- Department of Biomedical Genetics and University of Rochester Stem Cell and Regenerative Medicine Institute, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Yin Miranda Yang
- Department of Biomedical Genetics and University of Rochester Stem Cell and Regenerative Medicine Institute, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Christopher Folts
- Department of Biomedical Genetics and University of Rochester Stem Cell and Regenerative Medicine Institute, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Jennifer Stripay
- Department of Biomedical Genetics and University of Rochester Stem Cell and Regenerative Medicine Institute, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Hsing-Yu Chen
- Harvard Medical School, Department of Cell Biology 240 Longwood Avenue Building C1, Room 513B Boston, MA 02115, USA.
| | - Brett M Stevens
- University of Colorado School of Medicine, Division of Hematology, 12700 E. 19th Avenue, Campus Box F754-AMCA, Aurora, CO 80045, USA.
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Ding Y, Zhu W, Sun R, Yuan G, Zhang D, Fan Y, Sun J. Diphenylene iodonium interferes with cell cycle progression and induces apoptosis by modulating NAD(P)H oxidase/ROS/cell cycle regulatory pathways in Burkitt's lymphoma cells. Oncol Rep 2015; 33:1434-42. [PMID: 25591797 DOI: 10.3892/or.2015.3726] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Accepted: 12/23/2014] [Indexed: 11/06/2022] Open
Abstract
Infection with Epstein-Barr virus (EBV) and its encoded latent membrane protein 1 (LMP1) play oncogenic roles in Burkitt's lymphoma (BL). Flow cytometry was used to measure cellular reactive oxygen species (ROS) concentrations, and cellular lactate generation and diphenylene iodonium (DPI) cytotoxicity were determined by analyzing lactate concentrations and cell viability. We also measured NAD(P)H oxidase (NOX) activity. Reverse transcriptase PCR and qPCR assays were used to analyze LMP1 levels, and protein expression was measured by immunoblotting. In the present study, EBV was able to induce NOX activity and ROS generation in the BL cells. Inhibition of NOX activity by DPI suppressed ROS levels and elevated lactate levels. DPI treatment first resulted in a G2-M phase cell cycle arrest and then induced significant apoptosis. Immunoblot analysis demonstrated that DPI suppressed the expression of c-Myc and Cdc25A within 6 h, which may have caused the cell cycle arrest. Collectively, these findings indicate a close relationship between EBV infection and NOX activation, permitting a deeper understanding of ROS inhibition in cell cycle regulation and providing a novel therapeutic target for BL treatment.
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Affiliation(s)
- Ya Ding
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, P.R. China
| | - Wenjun Zhu
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, P.R. China
| | - Rui Sun
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, P.R. China
| | - Gang Yuan
- First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P.R. China
| | - Dongsheng Zhang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, P.R. China
| | - Yuhua Fan
- First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P.R. China
| | - Jian Sun
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, P.R. China
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Fan LL, Li WH. Mechanism underlying exogenous nitric oxide induced gastric cancer SGC-7901 cell apoptosis. Shijie Huaren Xiaohua Zazhi 2015; 23:8-15. [DOI: 10.11569/wcjd.v23.i1.8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the potential mechanism of exogenous nitric oxide (NO) induced apoptosis of moderately differentiated gastric cancer cells (SGC-7901).
METHODS: SGC-7901 cells were treated with different concentrations of sodium nitroprusside (SNP), which was used as the donor of exogenous NO. The survival rate of cells was detected by MTT assay. Cells were divided into four groups: a blank control group, a reactive oxygen species (ROS) inhibitor (N-acetyl-L-cysteine, NAC) group, an SNP group and an NAC + SNP group. Apoptotic cell morphology and apoptosis rate were evaluated by fluorescence microscopy. Levels of ROS were determined by fluorescent chemiluminescence. Protein levels of Cu/Zn-superoxide dismutase (Cu/Zn-SOD) were detected by Western blot analysis.
RESULTS: SNP induced apoptosis of SGC-7901 cells in a dose- and time-dependent manner. There were no significant differences in cell apoptosis rate or ROS level between the NAC group and blank control group (P >0.05). Compared to the blank control group, cell apoptosis rate and ROS were significantly increased in the SNP group and NAC + SNP group (P < 0.05). Cell apoptosis rate and ROS level were significantly increased in the SNP group compared to the NAC + SNP group (P < 0.05). SNP decreased Cu/Zn-SOD protein expression in SGC-7901 cells.
CONCLUSION: Exogenous NO can up-regulate ROS level in gastric cells by inhibiting Cu/Zn-SOD protein expression, which may be related to the mechanism by which NO induces apoptosis of gastric cancer cells.
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Matsunaga T, Kezuka C, Morikawa Y, Suzuki A, Endo S, Iguchi K, Miura T, Nishinaka T, Terada T, El-Kabbani O, Hara A, Ikari A. Up-Regulation of Carbonyl Reductase 1 Renders Development of Doxorubicin Resistance in Human Gastrointestinal Cancers. Biol Pharm Bull 2015; 38:1309-19. [DOI: 10.1248/bpb.b15-00176] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
| | - Chihiro Kezuka
- Laboratory of Biochemistry, Gifu Pharmaceutical University
| | | | - Ayaka Suzuki
- Laboratory of Biochemistry, Gifu Pharmaceutical University
| | - Satoshi Endo
- Laboratory of Biochemistry, Gifu Pharmaceutical University
| | - Kazuhiro Iguchi
- Laboratory of Community Pharmacy, Gifu Pharmaceutical University
| | - Takeshi Miura
- Laboratory of Biochemistry, Faculty of Pharmacy, Osaka Ohtani University
| | - Toru Nishinaka
- Laboratory of Biochemistry, Faculty of Pharmacy, Osaka Ohtani University
| | - Tomoyuki Terada
- Laboratory of Biochemistry, Faculty of Pharmacy, Osaka Ohtani University
| | | | | | - Akira Ikari
- Laboratory of Biochemistry, Gifu Pharmaceutical University
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He PX, Zhang J, Che YS, He QJ, Chen Y, Ding J. G226, a new epipolythiodioxopiperazine derivative, triggers DNA damage and apoptosis in human cancer cells in vitro via ROS generation. Acta Pharmacol Sin 2014; 35:1546-55. [PMID: 25468822 DOI: 10.1038/aps.2014.105] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 08/29/2014] [Indexed: 01/01/2023] Open
Abstract
AIM G226 is a novel derivative of epipolythiodioxopiperazines with potent inhibitory activity against cancer cells. Here, we sought to identify potential targets involved in the anti-cancer activity of G226. METHODS Cell proliferation assay was conducted in a panel of 12 human cancer cell lines. The activities of topoisomerase I (Topo I) and Topo II were studied using supercoiled pBR322 DNA relaxation and kDNA decatenation assays. ROS production was assessed with probes DCFH-DA and H&E. Western blot analysis and flow cytometry were used to examine DNA damage, apoptosis and cell cycle changes. RESULTS G226 displayed potent cytotoxicity in the 12 human cancer cell lines with a mean IC50 value of 92.7 nmol/L. This compound (1-100 μmol/L) selectively inhibited the activity of Topo II, and elevated the expression of phosphorylated-H2AX in a dose-dependent manner. In Topo II-deficient HL60/MX2 cells, however, G226-induced DNA damage, apoptosis and cytotoxicity were only partially reduced, suggesting that Topo II was not essential for the anti-tumor effects of G226. Furthermore, G226 (0.125-2 μmol/L) dose-dependently elevated the intracellular levels of H2O2 and in the cancer cells, and pretreatment with GSH, NAC or DTT not only blocked G226-induced intracellular accumulation of ROS, but also abrogated G226-mediated phosphorylation of H2AX, apoptosis and cytotoxicity. CONCLUSION G226-mediated ROS production contributes to the anti-cancer activity of this compound.
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Chromosomal instability causes sensitivity to metabolic stress. Oncogene 2014; 34:4044-55. [PMID: 25347746 DOI: 10.1038/onc.2014.344] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 08/31/2014] [Accepted: 09/15/2014] [Indexed: 02/07/2023]
Abstract
Chromosomal INstability (CIN), a hallmark of cancer, refers to cells with an increased rate of gain or loss of whole chromosomes or chromosome parts. CIN is linked to the progression of tumors with poor clinical outcomes such as drug resistance. CIN can give tumors the diversity to resist therapy, but it comes at the cost of significant stress to tumor cells. To tolerate this, cancer cells must modify their energy use to provide adaptation against genetic changes as well as to promote their survival and growth. In this study, we have demonstrated that CIN induction causes sensitivity to metabolic stress. We show that mild metabolic disruption that does not affect normal cells, can lead to high levels of oxidative stress and subsequent cell death in CIN cells because they are already managing elevated stress levels. Altered metabolism is a differential characteristic of cancer cells, so our identification of key regulators that can exploit these changes to cause cell death may provide cancer-specific potential drug targets, especially for advanced cancers that exhibit CIN.
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87
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Kim EJ, Bhuniya S, Lee H, Kim HM, Cheong C, Maiti S, Hong KS, Kim JS. An Activatable Prodrug for the Treatment of Metastatic Tumors. J Am Chem Soc 2014; 136:13888-94. [DOI: 10.1021/ja5077684] [Citation(s) in RCA: 189] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Eun-Joong Kim
- Division of MR Research, Korea Basic Science Institute, Cheongju 363-883, Korea
| | | | - Hyunseung Lee
- Division of MR Research, Korea Basic Science Institute, Cheongju 363-883, Korea
| | - Hyun Min Kim
- Division of MR Research, Korea Basic Science Institute, Cheongju 363-883, Korea
| | - Chaejoon Cheong
- Division of MR Research, Korea Basic Science Institute, Cheongju 363-883, Korea
- Department of Bio-analytical Science, University of Science & Technology, Daejeon 305-350, Korea
| | - Sukhendu Maiti
- Department
of Chemistry, Korea University, Seoul 136-701, Korea
| | - Kwan Soo Hong
- Division of MR Research, Korea Basic Science Institute, Cheongju 363-883, Korea
- Department of Bio-analytical Science, University of Science & Technology, Daejeon 305-350, Korea
| | - Jong Seung Kim
- Department
of Chemistry, Korea University, Seoul 136-701, Korea
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88
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Puiggròs F, Salvadó MJ, Bladé C, Arola L. Differential modulation of apoptotic processes by proanthocyanidins as a dietary strategy for delaying chronic pathologies. Crit Rev Food Sci Nutr 2014; 54:277-91. [PMID: 24188302 DOI: 10.1080/10408398.2011.565456] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Apoptosis is a biological process necessary for maintaining cellular homeostasis. Several diseases can result if it is deregulated. For example, inhibition of apoptotic signaling pathways is linked to the survival of pathological cells, which contributes to cancer, whereas excessive apoptosis is linked to neurodegenerative diseases, partially via oxidative stress. The activation or restoration of apoptosis via extrinsic or intrinsic pathways combined with cell signaling pathways triggered by reactive oxygen specises (ROS) formation is considered a key strategy by which bioactive foods can exert their health effects. Proanthocyanidins, a class of flavonoids naturally found in fruits, vegetables, and beverages, have attracted a great deal of attention not only because they are strong antioxidants but also because they appear to exert a different modulation of apoptosis, stimulating apoptosis in damaged cells, thus preventing cancer or reducing apoptosis in healthy cells, and as a result, preserving the integrity of normal cells and protecting against neurodegenerative diseases. Therefore, proanthocyanidins could provide a defense against apoptosis induced by oxidative stress or directly inhibit apoptosis, and they could also provide a promising treatment for a variety of diseases. Emerging data suggest that proanthocyanidins, especially those that humans can be persuaded to consume, may be used to prevent and manage cancer and mental disorders.
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Affiliation(s)
- Francesc Puiggròs
- a Nutrigenomics Group, Department of Biochemistry and Biotechnology , Universitat Rovira i Virgili , Tarragona , Spain
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89
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Li Y, Duan S, Jia H, Bai C, Zhang L, Wang Z. Flavonoids from tartary buckwheat induce G2/M cell cycle arrest and apoptosis in human hepatoma HepG2 cells. Acta Biochim Biophys Sin (Shanghai) 2014; 46:460-70. [PMID: 24760952 DOI: 10.1093/abbs/gmu023] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The cytotoxicity and antioxidant activity on human hepatoma cell line HepG2 of three flavonoids homogenous compounds from tartary buckwheat seeds and bran, namely quercetin, isoquercetin, and rutin, were investigated. The total antioxidant competency detection results indicated that the antioxidant capacity of quercetin was the strongest in a biological response system. A [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay showed that quercetin exhibited the strongest cytotoxic effects against the HepG2 cell line. Flow cytometric analysis indicated that quercetin significantly increased the production of reactive oxygen species, and led to the G2/M phase arrest accompanied by an increase of apoptotic cell death after 48 h of incubation. Quercetin-induced cell apoptosis was shown to involve p53 and p21 up-regulation, Cyclin D1, Cdk2, and Cdk7 down-regulation. These results suggested that the induction of G2/M arrest, apoptosis, and cell death by quercetin may associate with increased expression of p53 and p21, decrease of Cyclin D1, Cdk2, and Cdk7 levels, and generation of reactive oxygen species in cells. This study will help to better understand and fully utilize medicinal resources of plant flavonoids.
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Affiliation(s)
- Yuying Li
- Key laboratory of Chemical Biology and Molecular Engineering of the Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Shizhao Duan
- Key laboratory of Chemical Biology and Molecular Engineering of the Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Haiyan Jia
- Key laboratory of Chemical Biology and Molecular Engineering of the Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Chongzhi Bai
- Shanxi Provincial Institute of Traditional Chinese Medicine, Taiyuan 030012, China
| | - Liwei Zhang
- Key laboratory of Chemical Biology and Molecular Engineering of the Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Zhuanhua Wang
- Key laboratory of Chemical Biology and Molecular Engineering of the Ministry of Education, Shanxi University, Taiyuan 030006, China
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90
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Gong LH, Chen XX, Wang H, Jiang QW, Pan SS, Qiu JG, Mei XL, Xue YQ, Qin WM, Zheng FY, Shi Z, Yan XJ. Piperlongumine induces apoptosis and synergizes with cisplatin or paclitaxel in human ovarian cancer cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:906804. [PMID: 24895529 PMCID: PMC4034765 DOI: 10.1155/2014/906804] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 04/01/2014] [Accepted: 04/03/2014] [Indexed: 01/14/2023]
Abstract
Piperlongumine (PL), a natural alkaloid from Piper longum L., possesses the highly selective and effective anticancer property. However, the effect of PL on ovarian cancer cells is still unknown. In this study, we firstly demonstrate that PL selectively inhibited cell growth of human ovarian cancer cells. Furthermore, PL notably induced cell apoptosis, G2/M phase arrest, and accumulation of the intracellular reactive oxidative species (ROS) in a dose- and time-dependent manner. Pretreatment with antioxidant N-acety-L-cysteine could totally reverse the PL-induced ROS accumulation and cell apoptosis. In addition, low dose of PL/cisplatin or paclitaxel combination therapies had a synergistic antigrowth effect on human ovarian cancer cells. Collectively, our study provides new therapeutic potential of PL on human ovarian cancer.
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Affiliation(s)
- Li-Hua Gong
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical College, Shangcai Village South, Ouhai District, Wenzhou, Zhejiang 325000, China
| | - Xiu-Xiu Chen
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical College, Shangcai Village South, Ouhai District, Wenzhou, Zhejiang 325000, China
| | - Huan Wang
- Department of Gynecology, The Third Affiliated Hospital of Sun-Yat Sen University, Guangzhou, Guangdong 510632, China
| | - Qi-Wei Jiang
- Department of Cell Biology and Institute of Biomedicine, College of Life Science and Technology, Jinan University, Room 708, The 2nd Engineer and Scientific Building, 601 Huangpu RoadWest, Guangzhou, Guangdong 510632, China
| | - Shi-Shi Pan
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical College, Shangcai Village South, Ouhai District, Wenzhou, Zhejiang 325000, China
| | - Jian-Ge Qiu
- Department of Cell Biology and Institute of Biomedicine, College of Life Science and Technology, Jinan University, Room 708, The 2nd Engineer and Scientific Building, 601 Huangpu RoadWest, Guangzhou, Guangdong 510632, China
| | - Xiao-Long Mei
- Department of Cell Biology and Institute of Biomedicine, College of Life Science and Technology, Jinan University, Room 708, The 2nd Engineer and Scientific Building, 601 Huangpu RoadWest, Guangzhou, Guangdong 510632, China
| | - You-Qiu Xue
- Department of Cell Biology and Institute of Biomedicine, College of Life Science and Technology, Jinan University, Room 708, The 2nd Engineer and Scientific Building, 601 Huangpu RoadWest, Guangzhou, Guangdong 510632, China
| | - Wu-Ming Qin
- Department of Cell Biology and Institute of Biomedicine, College of Life Science and Technology, Jinan University, Room 708, The 2nd Engineer and Scientific Building, 601 Huangpu RoadWest, Guangzhou, Guangdong 510632, China
| | - Fei-Yun Zheng
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical College, Shangcai Village South, Ouhai District, Wenzhou, Zhejiang 325000, China
| | - Zhi Shi
- Department of Cell Biology and Institute of Biomedicine, College of Life Science and Technology, Jinan University, Room 708, The 2nd Engineer and Scientific Building, 601 Huangpu RoadWest, Guangzhou, Guangdong 510632, China
| | - Xiao-Jian Yan
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical College, Shangcai Village South, Ouhai District, Wenzhou, Zhejiang 325000, China
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91
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Bur H, Haapasaari KM, Turpeenniemi-Hujanen T, Kuittinen O, Auvinen P, Marin K, Koivunen P, Sormunen R, Soini Y, Karihtala P. Oxidative stress markers and mitochondrial antioxidant enzyme expression are increased in aggressive Hodgkin lymphomas. Histopathology 2014; 65:319-27. [PMID: 24698430 DOI: 10.1111/his.12389] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 02/05/2014] [Indexed: 12/11/2022]
Abstract
AIMS Hodgkin lymphoma treatments are largely based on the generation of reactive oxygen species, but increased expression of antioxidant enzymes may contribute to chemoresistance. The aims of this study were: to define the extent and prognostic value of oxidative stress marker and antioxidant enzyme expression in Hodgkin lymphomas; and to investigate a potential association between antioxidant enzymes and chemoresistance. METHODS AND RESULTS We immunohistochemically assessed expression of peroxiredoxin (Prx) II, Prx III, Prx V, Prx VI, manganese superoxide dismutase (MnSOD), 8-hydroxydeoxyguanosine (8-OHdG) and nitrotyrosine in 99 cases of uniformly treated Hodgkin lymphoma. Localization of 8-OHdG was assessed using transmission electron microscopy, which demonstrated expression in the cytosol and mitochondria. 8-OHdG expression in Reed-Sternberg (RS) cells was associated with advanced stage (P = 0.006) and a lower International Prognostic Score (P = 0.004). Prx III expression in reactive cellular infiltrate was associated with advanced stage (P = 0.002) and B-symptoms (P = 0.0006). Strong cytoplasmic Prx V immunostaining was associated with a low rate of complete response to chemotherapy (P = 0.043). MnSOD immunostaining in RS cells was related to advanced stage (P = 0.031) and to poorer relapse-free survival (RFS) (P = 0.033). Low 8-OHdG expression in the nuclei of RS cells was a predictor of poorer RFS (P = 0.038). Both 8-OHdG and MnSOD were also significant RFS predictors in multivariate analysis. CONCLUSIONS Our results suggest that significant oxidative stress exists in Hodgkin lymphomas, both in RS cells and in reactive cellular infiltrates. Mitochondrial antioxidant enzymes are induced in the most aggressive forms of the disease, and they may play some part in chemoresistance.
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Affiliation(s)
- Hamid Bur
- Department of Oncology and Radiotherapy, Oulu University Hospital and University of Oulu, Oulu, Finland
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92
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Wang H, Ye Y, Yu ZL. Proteomic and functional analyses demonstrate the involvement of oxidative stress in the anticancer activities of oridonin in HepG2 cells. Oncol Rep 2014; 31:2165-72. [PMID: 24627081 DOI: 10.3892/or.2014.3081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Accepted: 02/27/2014] [Indexed: 11/06/2022] Open
Abstract
Oridonin exhibits a curative effect on liver carcinoma in patients and experimental animals. In the present study, we performed proteomic and functional analyses to explore the mechanism involved in the anticancer activity of oridonin. Oridonin treatment for 24 h resulted in a dose-dependent decrease in cell viability with an IC50 value of 37.90 µM. Treatment with 40 µM oridonin for 24 h induced apoptosis as typical apoptotic nuclear alterations were observed following DAPI staining. Using a 2-DE-based proteomic approach, 3 upregulated oxidative stress markers, Hsp70-1, Hop and Prdx2, were identified in the HepG2 cells treated with 40 µM oridonin for 24 h. A pattern of alteration in Hsp70-1 was verified by western blotting. The mRNA expression patterns of Hsp70-1 and Hop as determined by qPCR were comparable to their protein expression patterns. Further investigations showed that oridonin treatment for 24 h resulted in reactive oxygen species (ROS) generation, and ROS scavenger N-acetylcysteine (NAC) completely inhibited ROS production and restored cell viability, suggesting that oxidative stress contributed to oridonin-induced HepG2 cell death. Western blot analysis of oxidative stress pathway-related proteins demonstrated that oridonin treatment increased p-JNK, p-p38 and p-p53, and decreased Bcl-2 protein expression levels, promoted cytochrome c release, decreased mitochondrial membrane potential, and activated caspase-9 and caspase-3. Furthermore, knockdown of Hsp70-1 expression with specific shRNA significantly decreased the viability of the cells treated with oridonin, suggesting a protective role of Hsp70-1 in oridonin-mediated oxidative stress. The results of the present study provide evidence for a link between oxidative stress and oridonin-induced apoptosis in HepG2 cells.
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Affiliation(s)
- Hui Wang
- Guangdong Provincial Key Laboratory of Biotechnology Candidate Drug Research, School of Life Science and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Yan Ye
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, SAR, P.R. China
| | - Zhi-Ling Yu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, SAR, P.R. China
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93
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Evans MK, Tovmasyan A, Batinic-Haberle I, Devi GR. Mn porphyrin in combination with ascorbate acts as a pro-oxidant and mediates caspase-independent cancer cell death. Free Radic Biol Med 2014; 68:302-14. [PMID: 24334253 PMCID: PMC4404036 DOI: 10.1016/j.freeradbiomed.2013.11.031] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 11/01/2013] [Accepted: 11/06/2013] [Indexed: 01/13/2023]
Abstract
Resistance to therapy-mediated apoptosis in inflammatory breast cancer, an aggressive and distinct subtype of breast cancer, was recently attributed to increased superoxide dismutase (SOD) expression, glutathione (GSH) content, and decreased accumulation of reactive species. In this study, we demonstrate the unique ability of two Mn(III) N-substituted pyridylporphyrin (MnP)-based SOD mimics (MnTE-2-PyP(5+) and MnTnBuOE-2-PyP(5+)) to catalyze oxidation of ascorbate, leading to the production of excessive levels of peroxide, and in turn cell death. The accumulation of peroxide, as a consequence of MnP+ascorbate treatment, was fully reversed by the administration of exogenous catalase, showing that hydrogen peroxide is essential for cell death. Cell death as a consequence of the action of MnP+ascorbate corresponded to decreases in GSH levels, prosurvival signaling (p-NF-κB, p-ERK1/2), and in expression of X-linked inhibitor of apoptosis protein, the most potent caspase inhibitor. Although markers of classical apoptosis were observed, including PARP cleavage and annexin V staining, administration of a pan-caspase inhibitor, Q-VD-OPh, did not reverse the observed cytotoxicity. MnP+ascorbate-treated cells showed nuclear translocation of apoptosis-inducing factor, suggesting the possibility of a mechanism of caspase-independent cell death. Pharmacological ascorbate has already shown promise in recently completed phase I clinical trials, in which its oxidation and subsequent peroxide formation was catalyzed by endogenous metalloproteins. The catalysis of ascorbate oxidation by an optimized metal-based catalyst (such as MnP) carries a large therapeutic potential as an anticancer agent by itself or in combination with other modalities such as radio- and chemotherapy.
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Affiliation(s)
- Myron K Evans
- Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA; Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC 27710, USA
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC 27710, USA; Duke Cancer Institute, Duke University Medical Center, Durham, NC 27710, USA.
| | - Gayathri R Devi
- Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA; Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Duke Cancer Institute, Duke University Medical Center, Durham, NC 27710, USA.
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94
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Zinc Protoporphyrin Polymeric Nanoparticles: Potent Heme Oxygenase Inhibitor for Cancer Therapy. Pharm Res 2014; 31:2124-39. [DOI: 10.1007/s11095-014-1313-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 01/23/2014] [Indexed: 10/25/2022]
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95
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Thews O, Riemann A, Nowak M, Gekle M. Impact of hypoxia-related tumor acidosis on cytotoxicity of different chemotherapeutic drugs in vitro and in vivo. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 812:51-58. [PMID: 24729214 DOI: 10.1007/978-1-4939-0620-8_7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Extracellular acidosis in tumors leads to an activation of the p-glycoprotein (Pgp) drug transporter. In the present study the cytotoxicity of different chemotherapeutic drugs and its dependence on the Pgp activity during acidosis were analyzed in vitro and in vivo. Treating R3327-AT1, Pgp-positive tumor cells at pH 7.4 with daunorubicin, cisplatin or docetaxel led to marked apoptosis induction and cell death. Under acidic (pH 6.6) conditions cytotoxicity of daunorubicin or docetaxel was significantly reduced whereas cisplatin-induced cell death was almost pH-independent. Inhibiting Pgp with verapamil reversed the acidosis-induced chemoresistance against daunorubicin and docetaxel. The Pgp expression was unaffected by pH. In vivo the cytotoxicity of daunorubicin and docetaxel was also pH dependent. When acidifying the tumors by forcing glycolytic metabolism, apoptosis induction decreased significantly indicating a reduced chemosensitivity. The cytotoxic effect of cisplatin in vivo was unaffected by the tumor pH. Since daunorubicin and docetaxel (but not cisplatin) are substrates of the Pgp, these results underline the influence of the tumor acidosis on the Pgp-mediated chemoresistance which can be counteracted by inhibition of the drug transporter.
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Affiliation(s)
- Oliver Thews
- Julius-Bernstein-Institute of Physiology, University of Halle, Halle (Saale), Germany.
| | - Anne Riemann
- Julius-Bernstein-Institute of Physiology, University of Halle, Halle (Saale), Germany
| | - Martin Nowak
- Institute of Physiology and Pathophysiology, University of Mainz, Mainz, Germany
| | - Michael Gekle
- Julius-Bernstein-Institute of Physiology, University of Halle, Halle (Saale), Germany
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96
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Li Y, Wu Y, Guan Y, Wang Z, Zhang L. Hydroxysafflor yellow A induces apoptosis in MCF-7 cells by blocking NFκB/p65 pathway and disrupting mitochondrial transmembrane potential. RSC Adv 2014. [DOI: 10.1039/c4ra07417c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The molecular mechanisms and the possible effects of hydroxysafflor yellow A (HSYA) on the induction of apoptosis in the human breast cancer MCF-7 cells were investigated.
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Affiliation(s)
- YuYing Li
- Key Laboratory for Chemical Biology and Molecular Engineering of Ministry of Education
- Shanxi University
- Taiyuan, China
| | - Yanzi Wu
- Key Laboratory for Chemical Biology and Molecular Engineering of Ministry of Education
- Shanxi University
- Taiyuan, China
| | - Yingying Guan
- Key Laboratory for Chemical Biology and Molecular Engineering of Ministry of Education
- Shanxi University
- Taiyuan, China
| | - ZhuanHua Wang
- Key Laboratory for Chemical Biology and Molecular Engineering of Ministry of Education
- Shanxi University
- Taiyuan, China
| | - Liwei Zhang
- Key Laboratory for Chemical Biology and Molecular Engineering of Ministry of Education
- Shanxi University
- Taiyuan, China
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97
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Iida N, Dzutsev A, Stewart CA, Smith L, Bouladoux N, Weingarten RA, Molina DA, Salcedo R, Back T, Cramer S, Dai RM, Kiu H, Cardone M, Naik S, Patri AK, Wang E, Marincola FM, Frank KM, Belkaid Y, Trinchieri G, Goldszmid RS. Commensal bacteria control cancer response to therapy by modulating the tumor microenvironment. Science 2013; 342:967-70. [PMID: 24264989 DOI: 10.1126/science.1240527] [Citation(s) in RCA: 1511] [Impact Index Per Article: 137.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The gut microbiota influences both local and systemic inflammation. Inflammation contributes to development, progression, and treatment of cancer, but it remains unclear whether commensal bacteria affect inflammation in the sterile tumor microenvironment. Here, we show that disruption of the microbiota impairs the response of subcutaneous tumors to CpG-oligonucleotide immunotherapy and platinum chemotherapy. In antibiotics-treated or germ-free mice, tumor-infiltrating myeloid-derived cells responded poorly to therapy, resulting in lower cytokine production and tumor necrosis after CpG-oligonucleotide treatment and deficient production of reactive oxygen species and cytotoxicity after chemotherapy. Thus, optimal responses to cancer therapy require an intact commensal microbiota that mediates its effects by modulating myeloid-derived cell functions in the tumor microenvironment. These findings underscore the importance of the microbiota in the outcome of disease treatment.
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Affiliation(s)
- Noriho Iida
- Cancer and Inflammation Program, National Cancer Institute, Frederick, MD 21702, USA
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98
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Middleton RP, Nelson R, Li Q, Blanton A, Labuda JA, Vitt J, Inpanbutr N. 1,25-Dihydroxyvitamin D3and its analogues increase catalase at the mRNA, protein and activity level in a canine transitional carcinoma cell line. Vet Comp Oncol 2013; 13:452-63. [DOI: 10.1111/vco.12066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
| | - R. Nelson
- Nestlé Purina Research; St. Louis MO 63164 USA
| | - Q. Li
- Nestlé Purina Research; St. Louis MO 63164 USA
| | - A. Blanton
- Department of Veterinary Biosciences; The Ohio State University; Columbus OH 43210 USA
| | | | - J. Vitt
- Department of Veterinary Biosciences; The Ohio State University; Columbus OH 43210 USA
| | - N. Inpanbutr
- Department of Veterinary Biosciences; The Ohio State University; Columbus OH 43210 USA
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99
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Djukic TI, Savic-Radojevic AR, Pekmezovic TD, Matic MG, Pljesa-Ercegovac MS, Coric VM, Radic TM, Suvakov SR, Krivic BN, Dragicevic DP, Simic TP. Glutathione S-transferase T1, O1 and O2 polymorphisms are associated with survival in muscle invasive bladder cancer patients. PLoS One 2013; 8:e74724. [PMID: 24040330 PMCID: PMC3770566 DOI: 10.1371/journal.pone.0074724] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 08/02/2013] [Indexed: 11/26/2022] Open
Abstract
Objective To examine the association of six glutathione transferase (GST) gene polymorphisms (GSTT1, GSTP1/rs1695, GSTO1/rs4925, GSTO2/rs156697, GSTM1, GSTA1/rs3957357) with the survival of patients with muscle invasive bladder cancer and the genotype modifying effect on chemotherapy. Patients and Methods A total of 105 patients with muscle invasive bladder cancer were included in the study. The follow-up lasted 5 years. The effect of GSTs polymorphisms on predicting mortality was analyzed by the Cox proportional hazard models, while Kaplan-Meier analysis was performed to assess differences in survival. Results GSTT1 active, GSTO1 Asp140Asp or GSTO2 Asp142Asp genotypes were independent predictors of a higher risk of death among bladder cancer patients (HR = 2.5, P = 0.028; HR = 2.9, P = 0.022; HR = 3.9, P = 0.001; respectively) and significantly influenced the overall survival. There was no association between GSTP1, GSTM1 and GSTA1 gene variants with overall mortality. Only GSTO2 polymorphism showed a significant effect on the survival in the subgroup of patients who received chemotherapy (P = 0.006). Conclusion GSTT1 active genotype and GSTO1 Asp140Asp and GSTO2 Asp142Asp genotypes may have a prognostic/pharmacogenomic role in patients with muscle invasive bladder cancer.
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Affiliation(s)
- Tatjana I. Djukic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ana R. Savic-Radojevic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tatjana D. Pekmezovic
- Institute of Epidemiology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Marija G. Matic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Marija S. Pljesa-Ercegovac
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Vesna M. Coric
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tanja M. Radic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Sonja R. Suvakov
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | | | - Dejan P. Dragicevic
- Clinic of Urology, Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tatjana P. Simic
- Institute of Medical and Clinical Biochemistry, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- * E-mail:
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100
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Alili L, Sack M, von Montfort C, Giri S, Das S, Carroll KS, Zanger K, Seal S, Brenneisen P. Downregulation of tumor growth and invasion by redox-active nanoparticles. Antioxid Redox Signal 2013; 19. [PMID: 23198807 PMCID: PMC3752511 DOI: 10.1089/ars.2012.4831] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
AIMS Melanoma is the most aggressive type of malignant skin cancer derived from uncontrolled proliferation of melanocytes. Melanoma cells possess a high potential to metastasize, and the prognosis for advanced melanoma is rather poor due to its strong resistance to conventional chemotherapeutics. Nanomaterials are at the cutting edge of the rapidly developing area of nanomedicine. The potential of nanoparticles for use as carrier in cancer drug delivery is infinite with novel applications constantly being tested. The noncarrier use of cerium oxide nanoparticles (CNPs) is a novel and promising approach, as those particles per se show an anticancer activity via their oxygen vacancy-mediated chemical reactivity. RESULTS In this study, the question was addressed of whether the use of CNPs might be a valuable tool to counteract the invasive capacity and metastasis of melanoma cells in the future. Therefore, the effect of those nanoparticles on human melanoma cells was investigated in vitro and in vivo. Concentrations of polymer-coated CNPs being nontoxic for stromal cells showed a cytotoxic, proapoptotic, and anti-invasive capacity on melanoma cells. In vivo xenograft studies with immunodeficient nude mice showed a decrease of tumor weight and volume after treatment with CNPs. INNOVATION In summary, the redox-active CNPs have selective pro-oxidative and antioxidative properties, and this study is the first to show that CNPs prevent tumor growth in vivo. CONCLUSION The application of redox-active CNPs may form the basis of new paradigms in the treatment and prevention of cancers.
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Affiliation(s)
- Lirija Alili
- Medical Faculty, Institute of Biochemistry & Molecular Biology I, Heinrich-Heine-University, 40225 Duesseldorf, Germany.
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