1
|
Popov AL, Kolmanovich DD, Chukavin NN, Zelepukin IV, Tikhonowski GV, Pastukhov AI, Popov AA, Shemyakov AE, Klimentov SM, Ryabov VA, Deyev SM, Zavestovskaya IN, Kabashin AV. Boron Nanoparticle-Enhanced Proton Therapy: Molecular Mechanisms of Tumor Cell Sensitization. Molecules 2024; 29:3936. [PMID: 39203014 PMCID: PMC11357428 DOI: 10.3390/molecules29163936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Revised: 08/15/2024] [Accepted: 08/16/2024] [Indexed: 09/03/2024] Open
Abstract
Boron-enhanced proton therapy has recently appeared as a promising approach to increase the efficiency of proton therapy on tumor cells, and this modality can further be improved by the use of boron nanoparticles (B NPs) as local sensitizers to achieve enhanced and targeted therapeutic outcomes. However, the mechanisms of tumor cell elimination under boron-enhanced proton therapy still require clarification. Here, we explore possible molecular mechanisms responsible for the enhancement of therapeutic outcomes under boron NP-enhanced proton therapy. Spherical B NPs with a mode size of 25 nm were prepared by methods of pulsed laser ablation in water, followed by their coating by polyethylene glycol to improve their colloidal stability in buffers. Then, we assessed the efficiency of B NPs as sensitizers of cancer cell killing under irradiation with a 160.5 MeV proton beam. Our experiments showed that the combined effect of B NPs and proton irradiation induces an increased level of superoxide anion radical generation, which leads to the depolarization of mitochondria, a drop in their membrane mitochondrial potential, and the development of apoptosis. A comprehensive gene expression analysis (via RT-PCR) confirmed increased overexpression of 52 genes (out of 87 studied) involved in the cell redox status and oxidative stress, compared to 12 genes in the cells irradiated without B NPs. Other possible mechanisms responsible for the B NPs-induced radiosensitizing effect, including one related to the generation of alpha particles, are discussed. The obtained results give a better insight into the processes involved in the boron-induced enhancement of proton therapy and enable one to optimize parameters of proton therapy in order to maximize therapeutic outcomes.
Collapse
Affiliation(s)
- Anton L. Popov
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky Prospect 53, Moscow 119991, Russia; (A.L.P.); (D.D.K.); (A.E.S.); (V.A.R.)
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 3 Institutskaya St., Pushchino 142290, Russia;
| | - Danil D. Kolmanovich
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky Prospect 53, Moscow 119991, Russia; (A.L.P.); (D.D.K.); (A.E.S.); (V.A.R.)
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 3 Institutskaya St., Pushchino 142290, Russia;
| | - Nikita N. Chukavin
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 3 Institutskaya St., Pushchino 142290, Russia;
| | - Ivan V. Zelepukin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 117997, Russia; (I.V.Z.); (S.M.D.)
- Department of Medicinal Chemistry, Uppsala University, 75310 Uppsala, Sweden
| | - Gleb V. Tikhonowski
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Kashirskoe Shosse 31, Moscow 115409, Russia; (G.V.T.); (A.A.P.); (S.M.K.)
| | | | - Anton A. Popov
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Kashirskoe Shosse 31, Moscow 115409, Russia; (G.V.T.); (A.A.P.); (S.M.K.)
| | - Alexander E. Shemyakov
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky Prospect 53, Moscow 119991, Russia; (A.L.P.); (D.D.K.); (A.E.S.); (V.A.R.)
| | - Sergey M. Klimentov
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Kashirskoe Shosse 31, Moscow 115409, Russia; (G.V.T.); (A.A.P.); (S.M.K.)
| | - Vladimir A. Ryabov
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky Prospect 53, Moscow 119991, Russia; (A.L.P.); (D.D.K.); (A.E.S.); (V.A.R.)
| | - Sergey M. Deyev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 117997, Russia; (I.V.Z.); (S.M.D.)
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Kashirskoe Shosse 31, Moscow 115409, Russia; (G.V.T.); (A.A.P.); (S.M.K.)
- National Research Center “Kurchatov Institute”, Academician Kurchatov Square 1, Moscow 123182, Russia
- “Biomarker” Research Laboratory, Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Russia
- Institute of Molecular Theranostics, Sechenov University, Moscow 119991, Russia
| | - Irina N. Zavestovskaya
- P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninsky Prospect 53, Moscow 119991, Russia; (A.L.P.); (D.D.K.); (A.E.S.); (V.A.R.)
- Institute of Engineering Physics for Biomedicine (PhysBio), National Research Nuclear University MEPhI, Kashirskoe Shosse 31, Moscow 115409, Russia; (G.V.T.); (A.A.P.); (S.M.K.)
- National Research Center “Kurchatov Institute”, Academician Kurchatov Square 1, Moscow 123182, Russia
| | | |
Collapse
|
2
|
Nagano S, Unuma K, Aki T, Uemura K. N-acetylcysteine alleviates arsenic trioxide-induced reductions in hepatic catalase gene expression both in vitro and in vivo. Leg Med (Tokyo) 2024; 69:102458. [PMID: 38781725 DOI: 10.1016/j.legalmed.2024.102458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024]
Abstract
Arsenic trioxide (ATO), one of the oldest and most frequently used poisons, is well-known in forensic science for inducing hepatotoxicity. The regulation of peroxisomal antioxidative enzyme catalase (CAT) involves intricate mechanisms at both transcriptional and post-transcriptional levels. However, the molecular mechanisms underlying the regulation of CAT gene expression in hepatic cells remain elusive. Furthermore, the regulation of CAT gene expression evident in animals administered with ATO in vivo is not well-explored, although several studies have revealed ATO-induced reductions in CAT enzymatic activity in rat livers. In this study, we revealed ATO-dependent reductions in CAT gene expression in both rat liver and Huh-7 human hepatoma cells. Our results indicate that the decline in CAT enzymatic activity can be attributed, at least in part, to the downregulation of its gene expression. The ATO-induced reduction in CAT expression was concurrent with the reduction in peroxisome proliferator-activated receptor-gamma (PPARγ) coactivator (PGC)-1α and inactivation of PPARγ, both considered as positive regulators of CAT gene expression. Moreover, antioxidant N-acetylcysteine (NAC) demonstrated the capability to alleviate the downregulation of CAT gene expression both in vivo and in vitro. Additionally, NAC played a role in alleviating ATO-induced hepatotoxicity, potentially by mitigating the transcriptional downregulation of the CAT gene. Altogether, these results indicate that ATO exerts toxicity by inhibiting the antioxidant defense mechanism, which may be useful for forensic diagnosis of arsenic poisoning and clinical treatment of mitigating ATO-induced hepatotoxicity.
Collapse
Affiliation(s)
- Shutaro Nagano
- Department of Forensic Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kana Unuma
- Department of Forensic Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
| | - Toshihiko Aki
- Department of Forensic Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Koichi Uemura
- Department of Forensic Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| |
Collapse
|
3
|
Bacci M, Lorito N, Smiriglia A, Subbiani A, Bonechi F, Comito G, Morriset L, El Botty R, Benelli M, López-Velazco JI, Caffarel MM, Urruticoechea A, Sflomos G, Malorni L, Corsini M, Ippolito L, Giannoni E, Meattini I, Matafora V, Havas K, Bachi A, Chiarugi P, Marangoni E, Morandi A. Acetyl-CoA carboxylase 1 controls a lipid droplet-peroxisome axis and is a vulnerability of endocrine-resistant ER + breast cancer. Sci Transl Med 2024; 16:eadf9874. [PMID: 38416843 DOI: 10.1126/scitranslmed.adf9874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/30/2024] [Indexed: 03/01/2024]
Abstract
Targeting aromatase deprives ER+ breast cancers of estrogens and is an effective therapeutic approach for these tumors. However, drug resistance is an unmet clinical need. Lipidomic analysis of long-term estrogen-deprived (LTED) ER+ breast cancer cells, a model of aromatase inhibitor resistance, revealed enhanced intracellular lipid storage. Functional metabolic analysis showed that lipid droplets together with peroxisomes, which we showed to be enriched and active in the LTED cells, controlled redox homeostasis and conferred metabolic adaptability to the resistant tumors. This reprogramming was controlled by acetyl-CoA-carboxylase-1 (ACC1), whose targeting selectively impaired LTED survival. However, the addition of branched- and very long-chain fatty acids reverted ACC1 inhibition, a process that was mediated by peroxisome function and redox homeostasis. The therapeutic relevance of these findings was validated in aromatase inhibitor-treated patient-derived samples. Last, targeting ACC1 reduced tumor growth of resistant patient-derived xenografts, thus identifying a targetable hub to combat the acquisition of estrogen independence in ER+ breast cancers.
Collapse
Affiliation(s)
- Marina Bacci
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Nicla Lorito
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Alfredo Smiriglia
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Angela Subbiani
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Francesca Bonechi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Giuseppina Comito
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Ludivine Morriset
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005 Paris, France
| | - Rania El Botty
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005 Paris, France
| | - Matteo Benelli
- Department of Medical Oncology, Azienda USL Toscana Centro, Hospital of Prato, Via Suor Niccolina Infermiera 20, 59100 Prato, Italy
| | - Joanna I López-Velazco
- Biodonostia Health Research Institute, Paseo Dr Begiristain s/n, 20014 San Sebastian, Spain
| | - Maria M Caffarel
- Biodonostia Health Research Institute, Paseo Dr Begiristain s/n, 20014 San Sebastian, Spain
- Ikerbasque, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
| | - Ander Urruticoechea
- Biodonostia Health Research Institute, Paseo Dr Begiristain s/n, 20014 San Sebastian, Spain
- Gipuzkoa Cancer Unit, OSI Donostialdea-Onkologikoa Foundation, Paseo Dr Begiristain 121, 20014 San Sebastian, Spain
| | - George Sflomos
- Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Luca Malorni
- Department of Medical Oncology, Azienda USL Toscana Centro, Hospital of Prato, Via Suor Niccolina Infermiera 20, 59100 Prato, Italy
| | - Michela Corsini
- Department of Molecular and Translational Medicine, University of Brescia, Via Branze 39, 25123 Brescia, Italy
| | - Luigi Ippolito
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Elisa Giannoni
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Icro Meattini
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
- Radiation Oncology Unit, Oncology Department, Azienda Ospedaliero Universitaria Careggi, Largo Brambilla 3, 50134 Florence, Italy
| | - Vittoria Matafora
- IFOM ETS-AIRC Institute of Molecular Oncology, Via Adamello 16, 20139 Milan, Italy
| | - Kristina Havas
- IFOM ETS-AIRC Institute of Molecular Oncology, Via Adamello 16, 20139 Milan, Italy
| | - Angela Bachi
- IFOM ETS-AIRC Institute of Molecular Oncology, Via Adamello 16, 20139 Milan, Italy
| | - Paola Chiarugi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Elisabetta Marangoni
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005 Paris, France
| | - Andrea Morandi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| |
Collapse
|
4
|
Wang M, Liu J, Liao X, Yi Y, Xue Y, Yang L, Cheng H, Liu P. The SGK3-Catalase antioxidant signaling axis drives cervical cancer growth and therapy resistance. Redox Biol 2023; 67:102931. [PMID: 37866161 PMCID: PMC10623367 DOI: 10.1016/j.redox.2023.102931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/05/2023] [Accepted: 10/10/2023] [Indexed: 10/24/2023] Open
Abstract
Cancer cells frequently exhibit aberrant redox homeostasis and adaptation to oxidative stress. Hence abrogation of redox adaptation in cancer cells can be exploited for therapeutic benefit. Here we report SGK3 functions as an anti-oxidative factor to promote cell growth and drug resistance in cervical cancers harboring PIK3CA helical domain mutations. Mechanistically, SGK3 is activated upon oxidative stress and exerts anti-ROS activity by stabilizing and activating the antioxidant enzyme catalase. SGK3 interacts with and phosphorylates catalase, promoting its tetrameric state and activity. Meanwhile, SGK3 phosphorylates GSK3β and protects catalase from GSK3β-β-TrCP mediated ubiquitination and proteasomal degradation. Furthermore, SGK3 inhibition not only potentiates CDK4/6 inhibitor Palbociclib-mediated cytotoxicity, but also overcomes cisplatin resistance through ROS-mediated mechanisms. These data uncover the role of SGK3 in maintaining redox homeostasis and suggest that the SGK3-catalase antioxidant signaling axis may be therapeutically targeted to improve treatment efficacy for cervical cancers carrying PIK3CA helical domain mutations.
Collapse
Affiliation(s)
- Min Wang
- Cancer Institute, The Second Hospital of Dalian Medical University, Dalian Key Laboratory of Molecular Targeted Cancer Therapy, Dalian, China
| | - Jiannan Liu
- Cancer Institute, The Second Hospital of Dalian Medical University, Dalian Key Laboratory of Molecular Targeted Cancer Therapy, Dalian, China
| | - Xingming Liao
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, Liaoning Province, China
| | - Yasong Yi
- Cancer Institute, The Second Hospital of Dalian Medical University, Dalian Key Laboratory of Molecular Targeted Cancer Therapy, Dalian, China
| | - Yijue Xue
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, Liaoning Province, China
| | - Ling Yang
- School of Pharmacy, Zunyi Medical University, Zunyi, China; Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China; Department of Pharmacology, Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, China.
| | - Hailing Cheng
- Cancer Institute, The Second Hospital of Dalian Medical University, Dalian Key Laboratory of Molecular Targeted Cancer Therapy, Dalian, China.
| | - Pixu Liu
- Cancer Institute, The Second Hospital of Dalian Medical University, Dalian Key Laboratory of Molecular Targeted Cancer Therapy, Dalian, China; Institute of Cancer Stem Cell, Dalian Medical University, Dalian, Liaoning Province, China; Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China.
| |
Collapse
|
5
|
Gunaseelan D, Ali MSBN, Albert A, Prabhakaran R, Beno DL, Nagarethinam B. Biochemical and molecular anticancer approaches for Boerhaavia diffusa root extracts in oral cancer. J Cancer Res Ther 2022; 18:S244-S252. [PMID: 36510972 DOI: 10.4103/jcrt.jcrt_932_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background Boerhaavia diffusa is a medicinal herb with anti-inflammatory, antiproliferative, anticancer, and immunomodulatory properties, found across India. Aim and Objectives The present study is designed to investigate the therapeutic potential for B. diffusa root extracts in oral cancer cell line. Materials and Methods The aqueous and methanolic extracts of B. diffusa were prepared using Soxhlet apparatus. In order to determine the phytochemical constituents of B. diffusa, the extracts were subjected to gas chromatography-mass spectrometry analysis. The antioxidant potential of B. diffusa extracts was assessed by 2,2-Diphenyl-picrylhydrazyl, ferric ion-reducing antioxidant power, catalase and peroxidase assays. The effective concentration of B. diffusa root on cell viability was analyzed by [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay. The ability of B. diffusa root extracts to modify the cell-cycle phases was performed by FACS analysis. The apoptotic inducing potential of B. diffusa in oral cancer cells was confirmed by acridine orange-ethidium bromide and 4',6-diamidino-2-phenylindole staining. The protein profile of apoptotic processes was validated by the Western blot analysis; docking studies were also performed. Results We observed that antioxidant activity was higher in B. diffusa methanolic extract compared with aqueous extract. The results showed that the methanolic and aqueous extracts of B. diffusa exhibited significant cytotoxic effect with IC50 value of 36 μg/ml and 30 μg/ml, respectively. The apoptotic DNA fragmentation and the apoptotic inducing potential in KB oral cancer cell line were higher for the methanolic extract compared with the aqueous extract. These results were also confirmed by in-silico analysis. Conclusion The results indicate that extracts obtained from the roots of B. diffusa inhibit the progression of oral cancer. These compounds of pharmacological importance can be either used alone or in combination with other drugs to treat oral cancer.
Collapse
Affiliation(s)
- Dharani Gunaseelan
- Department of Chemistry and Biosciences, Srinivasa Ramanujan Center, SASTRA Deemed University, Kumbakonam, Tamil Nadu, India
| | | | - Abhishek Albert
- Department of Biochemistry, Cancer Biology Unit, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu, India
| | - Rajkumar Prabhakaran
- Department of Biochemistry, Cancer Biology Unit, School of Biological Sciences, Madurai Kamaraj University, Madurai, Tamil Nadu, India
| | - Daniel Lysias Beno
- Department of Histopathology, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
| | - Baskaran Nagarethinam
- Department of Chemistry and Biosciences, Srinivasa Ramanujan Center, SASTRA Deemed University, Kumbakonam; Department of Technology Dissemination, Indian Institute of Food Processing Technology, Thanjavur, Tamil Nadu, India
| |
Collapse
|
6
|
Abstract
Significance: Vitamin C (ascorbate), in regard to its effectiveness against malignancies, has had a controversial history in cancer treatment. It has been shown that in vitro and in vivo anticancer efficacy of ascorbate relies on its pro-oxidant effect mainly from an increased generation of reactive oxygen species (ROS). A growing understanding of its anticancer activities and pharmacokinetic properties has prompted scientists to re-evaluate the significance of ascorbate in cancer treatment. Recent Advances: A recent resurge in ascorbate research emerged after discovering that, at high doses, ascorbate preferentially kills Kirsten-Ras (K-ras)- and B-raf oncogene (BRAF)-mutant cancer cells. In addition, some of the main hallmarks of cancer cells, such as redox homeostasis and oxygen-sensing regulation (through inhibition of hypoxia-inducible factor-1 alpha [HIF-1α] activity), are affected by vitamin C. Critical Issues: Currently, there is no clear consensus from the literature in regard to the beneficial effects of antioxidants. Results from both human and animal studies provide no clear evidence about the benefit of antioxidant treatment in preventing or suppressing cancer development. Since pro-oxidants may affect both normal and tumor cells, the extremely low toxicity of ascorbate represents a main advantage. This guarantees the safe inclusion of ascorbate in clinical protocols to treat cancer patients. Future Directions: Current research could focus on elucidating the wide array of reactions between ascorbate and reactive species, namely ROS, reactive nitrogen species as well as reactive sulfide species, and their intracellular molecular targets. Unraveling these mechanisms could allow researchers to assess what could be the optimal combination of ascorbate with standard treatments.
Collapse
Affiliation(s)
- Christophe Glorieux
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, P. R. China
| | - Pedro Buc Calderon
- Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Iquique, Chile.,Research Group in Metabolism and Nutrition, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| |
Collapse
|
7
|
Galasso M, Gambino S, Romanelli MG, Donadelli M, Scupoli MT. Browsing the oldest antioxidant enzyme: catalase and its multiple regulation in cancer. Free Radic Biol Med 2021; 172:264-272. [PMID: 34129927 DOI: 10.1016/j.freeradbiomed.2021.06.010] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/31/2021] [Accepted: 06/11/2021] [Indexed: 01/17/2023]
Abstract
Aerobic organisms possess numerous antioxidant enzymatic families, including catalases, superoxide dismutases (SODs), peroxiredoxins (PRDXs), and glutathione peroxidases (GPXs), which work cooperatively to protect cells from an excess of reactive oxygen species (ROS) derived from endogenous metabolism or external microenvironment. Catalase, as well as other antioxidant enzymes, plays an important dichotomous role in cancer. Therefore, therapies aimed at either reverting the increased or further escalating catalase levels could be effective, depending on the metabolic landscape and on the redox status of cancer cells. This dichotomous role of catalase in cancers highlights the importance to deepen comprehensively the role and the regulation of this crucial antioxidant enzyme. The present review highlights the role of catalase in cancer and provides a comprehensive description of the molecular mechanisms associated with the multiple levels of catalase regulation.
Collapse
Affiliation(s)
- Marilisa Galasso
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy; Department of Medicine, University of Verona, Verona, Italy
| | - Simona Gambino
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Maria Grazia Romanelli
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Massimo Donadelli
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
| | - Maria Teresa Scupoli
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy; Research Center LURM -Interdepartmental Laboratory of Medical Research, University of Verona, Verona, Italy.
| |
Collapse
|
8
|
Alsherbiny MA, Bhuyan DJ, Radwan I, Chang D, Li CG. Metabolomic Identification of Anticancer Metabolites of Australian Propolis and Proteomic Elucidation of Its Synergistic Mechanisms with Doxorubicin in the MCF7 Cells. Int J Mol Sci 2021; 22:ijms22157840. [PMID: 34360606 PMCID: PMC8346082 DOI: 10.3390/ijms22157840] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 12/11/2022] Open
Abstract
The combination of natural products with standard chemotherapeutic agents offers a promising strategy to enhance the efficacy or reduce the side effects of standard chemotherapy. Doxorubicin (DOX), a standard drug for breast cancer, has several disadvantages, including severe side effects and the development of drug resistance. Recently, we reported the potential bioactive markers of Australian propolis extract (AP-1) and their broad spectrum of pharmacological activities. In the present study, we explored the synergistic interactions between AP-1 and DOX in the MCF7 breast adenocarcinoma cells using different synergy quantitation models. Biochemometric and metabolomics-driven analysis was performed to identify the potential anticancer metabolites in AP-1. The molecular mechanisms of synergy were studied by analysing the apoptotic profile via flow cytometry, apoptotic proteome array and measuring the oxidative status of the MCF7 cells treated with the most synergistic combination. Furthermore, label-free quantification proteomics analysis was performed to decipher the underlying synergistic mechanisms. Five prenylated stilbenes were identified as the key metabolites in the most active AP-1 fraction. Strong synergy was observed when AP-1 was combined with DOX in the ratio of 100:0.29 (w/w) as validated by different synergy quantitation models implemented. AP-1 significantly enhanced the inhibitory effect of DOX against MCF7 cell proliferation in a dose-dependent manner with significant inhibition of the reactive oxygen species (p < 0.0001) compared to DOX alone. AP-1 enabled the reversal of DOX-mediated necrosis to programmed cell death, which may be advantageous to decline DOX-related side effects. AP-1 also significantly enhanced the apoptotic effect of DOX after 24 h of treatment with significant upregulation of catalase, HTRA2/Omi, FADD together with DR5 and DR4 TRAIL-mediated apoptosis (p < 0.05), contributing to the antiproliferative activity of AP-1. Significant upregulation of pro-apoptotic p27, PON2 and catalase with downregulated anti-apoptotic XIAP, HSP60 and HIF-1α, and increased antioxidant proteins (catalase and PON2) may be associated with the improved apoptosis and oxidative status of the synergistic combination-treated MCF7 cells compared to the mono treatments. Shotgun proteomics identified 21 significantly dysregulated proteins in the synergistic combination-treated cells versus the mono treatments. These proteins were involved in the TP53/ATM-regulated non-homologous end-joining pathway and double-strand breaks repairs, recruiting the overexpressed BRCA1 and suppressed RIF1 encoded proteins. The overexpression of UPF2 was noticed in the synergistic combination treatment, which could assist in overcoming doxorubicin resistance-associated long non-coding RNA and metastasis of the MCF7 cells. In conclusion, we identified the significant synergy and highlighted the key molecular pathways in the interaction between AP-1 and DOX in the MCF7 cells together with the AP-1 anticancer metabolites. Further in vivo and clinical studies are warranted on this synergistic combination.
Collapse
Affiliation(s)
- Muhammad A. Alsherbiny
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia;
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
- Correspondence: (M.A.A.); (D.J.B.); (C.-G.L.)
| | - Deep J. Bhuyan
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia;
- Correspondence: (M.A.A.); (D.J.B.); (C.-G.L.)
| | - Ibrahim Radwan
- Faculty of Science and Technology, University of Canberra, Canberra, ACT 2617, Australia;
| | - Dennis Chang
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia;
| | - Chun-Guang Li
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia;
- Correspondence: (M.A.A.); (D.J.B.); (C.-G.L.)
| |
Collapse
|
9
|
Autophagy attenuates high glucose-induced oxidative injury to lens epithelial cells. Biosci Rep 2021; 40:222411. [PMID: 32186721 PMCID: PMC7109002 DOI: 10.1042/bsr20193006] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 02/24/2020] [Accepted: 03/17/2020] [Indexed: 01/06/2023] Open
Abstract
Purpose: Autophagic dysfunction and abnormal oxidative stress are associated with cataract. The purpose of the present study was to investigate the changes of cellular autophagy and oxidative stress and their association in lens epithelial cells (LECs) upon exposure to high glucose. Methods: Autophagy and oxidative stress-related changes were detected in streptozotocin-induced Type 1 diabetic mice and normal mouse LECs incubated in high glucose conditions. Rapamycin at a concentration of 100 nm/l or 50 μM chloroquine was combined for analysis of the relationship between autophagy and oxidative stress. The morphology of LECs during autophagy was observed by transmission electron microscopy. The expressions of autophagy markers (LC3B and p62) were identified, as well as the key factors of oxidative stress (SOD2 and CAT) and mitochondrial reactive oxygen species (ROS) generation. Results: Transmission electron microscopy indicated an altered autophagy activity in diabetic mouse lens tissues with larger autophagosomes and multiple mitochondria. Regarding the expressions, LC3B was elevated, p62 was decreased first and then increased, and SOD2 and CAT were increased before a decrease during 4 months of follow-up in diabetic mice and 72 h of culture under high glucose for mouse LECs. Furthermore, rapamycin promoted the expressions of autophagy markers but alleviated those of oxidative stress markers, whereas chloroquine antagonized autophagy but enhanced oxidative stress by elevating ROS generation in LECs exposed to high glucose. Conclusions: The changes in autophagy and oxidative stress were fluctuating in the mouse LECs under constant high glucose conditions. Autophagy might attenuate high glucose-induced oxidative injury to LECs.
Collapse
|
10
|
Calixto MRP, Rech D, Dos Santos VL, Madeira TB, Nixdorf SL, Fagundes TR, Davis RAH, Bastos FF, Bastos-Neto JDC, Bastos VLFDC, Zanandrea AC, de Lima JR, Victorino VJ, Panis C. Chimarrão consumption and prognostic factors in breast cancer: Correlation with antioxidants and blood caffeine levels. Phytother Res 2021; 35:888-897. [PMID: 32924205 DOI: 10.1002/ptr.6836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 06/29/2020] [Accepted: 07/18/2020] [Indexed: 12/24/2022]
Abstract
Breast cancer is the second most common malignancy among women. Ilex paraguariensis A. St. Hil, known as yerba mate, is widely consumed in southern Brazil as a hot infusion drink known as chimarrão. This herb has a complex chemical composition and is rich in antioxidants, which may interfere in the course of chronic inflammatory diseases as breast cancer. This study investigated the impact of chimarrão consumption on the clinicopathological profile of women with breast cancer attended at Francisco Beltrão Cancer Hospital, Paraná, Brazil. Blood antioxidants and caffeine profiles were assessed. Decreases in reduced glutathione and metallothionein levels, and increase in catalase activity were observed among breast cancer patients that were chimarrão consumers. The levels of circulating caffeine in breast cancer patients with luminal A tumors were higher than those in patients with luminal B and HER-2 subtypes. Furthermore, overweight patients presented higher caffeine levels than the eutrophic ones. It was found positive associations between chimarrão intake and high body mass index, and chimarrão intake and menopause at diagnosis. Altogether, these findings suggest that chimarrão consumption affects the blood antioxidants of breast cancer patients, and that the caffeine present in this mixture may favor the development of tumor of good prognosis. HIGHLIGHTS: Chimarrão consumption may affect the course of chronic inflammatory diseases, as breast cancer. Chimarrão intake changed blood antioxidants in breast cancer patients who were current consumers when compared to the non-consumers ones. High levels of caffeine were detected in patients bearing luminal A tumors, suggesting a protective role.
Collapse
Affiliation(s)
- Maria Rachel Pedrazzoli Calixto
- Laboratório de Biologia de Tumores, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil
- Programa de Pós-graduação em Ciências Aplicadas à Saúde, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil
| | - Daniel Rech
- Laboratório de Biologia de Tumores, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil
- Programa de Pós-graduação em Ciências Aplicadas à Saúde, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil
- Hospital de Câncer de Francisco Beltrão (Ceonc), Francisco Beltrão-Paraná, Brazil
| | - Vanessa L Dos Santos
- Laboratório de Biologia de Tumores, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil
| | - Tiago Bervelieri Madeira
- Laboratório de Espectrometria de Massas, Departamento de Química, Universidade Estadual de Londrina, Londrina-Paraná, Brazil
| | - Suzana Lucy Nixdorf
- Laboratório de Espectrometria de Massas, Departamento de Química, Universidade Estadual de Londrina, Londrina-Paraná, Brazil
| | - Tatiane Renata Fagundes
- Programa de Pós-graduação em Patologia Experimental, Universidade Estadual de Londrina, Londrina-Paraná, Brazil
| | - Rachel Ann Hauser Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, Brazil
| | - Frederico Freire Bastos
- Universidade EStadual do Rio de Janeiro (UERJ), Instituto de Biologia Roberto Alcântara Gomes, Departamento de Bioquímica, Rio de Janeiro, RJ, Brazil
| | - Jayme da Cunha Bastos-Neto
- Universidade EStadual do Rio de Janeiro (UERJ), Instituto de Biologia Roberto Alcântara Gomes, Departamento de Bioquímica, Rio de Janeiro, RJ, Brazil
| | - Vera Lucia Freire da Cunha Bastos
- Universidade EStadual do Rio de Janeiro (UERJ), Instituto de Biologia Roberto Alcântara Gomes, Departamento de Bioquímica, Rio de Janeiro, RJ, Brazil
| | - Ana Carolina Zanandrea
- Universidade EStadual do Rio de Janeiro (UERJ), Instituto de Biologia Roberto Alcântara Gomes, Departamento de Bioquímica, Rio de Janeiro, RJ, Brazil
| | - Josivan Ribeiro de Lima
- Universidade EStadual do Rio de Janeiro (UERJ), Instituto de Biologia Roberto Alcântara Gomes, Departamento de Bioquímica, Rio de Janeiro, RJ, Brazil
| | - Vanessa Jacob Victorino
- Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro (IFRJ), Campus Engenheiro Paulo de Frontin, Rio de Janeiro, Brazil
| | - Carolina Panis
- Laboratório de Biologia de Tumores, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil
- Programa de Pós-graduação em Ciências Aplicadas à Saúde, Centro de Ciências da Saúde, Universidade Estadual do Oeste do Paraná (Unioeste), Francisco Beltrão-Paraná, Brazil
| |
Collapse
|
11
|
Kadioglu O, Saeed M, Mahmoud N, Azawi S, Mrasek K, Liehr T, Efferth T. Identification of potential novel drug resistance mechanisms by genomic and transcriptomic profiling of colon cancer cells with p53 deletion. Arch Toxicol 2021; 95:959-974. [PMID: 33515271 PMCID: PMC7904745 DOI: 10.1007/s00204-021-02979-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 01/04/2021] [Indexed: 12/25/2022]
Abstract
TP53 (p53) is a pivotal player in tumor suppression with fifty percent of all invasive tumors displaying mutations in the TP53 gene. In the present study, we characterized colon cancer cells (HCT116 p53 −/−) with TP53 deletion, a sub-line derived from HCT116-p53 +/+ cells. RNA sequencing and network analyses were performed to identify novel drug resistance mechanisms. Chromosomal aberrations were identified by multicolor fluorescence in situ hybridization (mFISH) and array comparative genomic hybridization (aCGH). Numerous genes were overexpressed in HCT116 p53 −/− cells: RND3/RhoE (235.6-fold up-regulated), DCLK1 (60.2-fold up-regulated), LBH (31.9-fold up-regulated), MYB (28.9-fold up-regulated), TACSTD2 (110.1-fold down-regulated), NRIP1 (81.5-fold down-regulated) and HLA-DMB (69.7-fold down-regulated) are among the identified genes with potential influence on multidrug resistance (MDR) and they are associated with cancer progression and tumorigenesis, according to previously published studies. Probably due to TP53 deletion, disturbances in DNA repair and apoptosis are leading to aberrancies in cellular and organismal organization, ultimately increasing tumorigenesis and cancer progression potential. With NFκB, PI3K and HSP70, being at the center of merged protein network, and TH1-2 pathways, being among the influenced pathways, it can be speculated that the inflammatory pathway contributes to a resistance phenotype together with cell cycle regulation and heat-shock response. HCT116-p53 −/− cells have more chromosomal aberrations, gains and losses in copy numbers than HCT116-p53 +/+ cells. In conclusion, numerous genomic aberrations, which might be associated with yet unknown drug resistance mechanisms, were identified. This may have important implications for future treatment strategies.
Collapse
Affiliation(s)
- Onat Kadioglu
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany
| | - Mohamed Saeed
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany
| | - Nuha Mahmoud
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany
| | - Shaymaa Azawi
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Jena, Germany
| | - Kristin Mrasek
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Jena, Germany
| | - Thomas Liehr
- Institute of Human Genetics, Jena University Hospital, Friedrich Schiller University, Jena, Germany
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany.
| |
Collapse
|
12
|
Dysregulation of Catalase by a Sulphamoylated Estradiol Analogue Culminates in Antimitotic Activity and Cell Death Induction in Breast Cancer Cell Lines. Molecules 2021; 26:molecules26030622. [PMID: 33504098 PMCID: PMC7866153 DOI: 10.3390/molecules26030622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/13/2021] [Accepted: 01/20/2021] [Indexed: 11/18/2022] Open
Abstract
Recent findings revealed that 2-ethyl-17-oxoestra-1,3,5(10)-trien-3-yl sulfamate (ESE-one) induces antiproliferative activity and cell rounding dependent on the generation of superoxide anion, hydrogen peroxide and peroxyl radical. In the current study, the role of these reactive oxygen species was assessed in the activity exerted by ESE-one on cell cycle progression, mitochondrial membrane potential and cell death induction in breast tumorigenic cells. The influence of ESE-one was also investigated on superoxide dismutase and catalase activity. ESE-one induced a time-dependent accumulation of cells in the G1 phase and G2/M phase that is partially impaired by tiron and trolox and N,N′-dimethylthiourea suggesting that superoxide anion, hydrogen peroxide and peroxyl radical are required for these effects exerted by ESE-one. Flow cytometry data in MCF-7 cells demonstrated that tiron decreased depolarization of the membrane potential in ESE-one exposed cells, indicating that superoxide anion plays a role in the depolarization effects induced by ESE-one. Spectrophotometry data showed that ESE-one decreased catalase activity in both cell lines. This study contributes towards pertinent information regarding the effects of an in silico-designed sulfamoylated compound on antioxidant enzymes leading to aberrant quantities of specific reactive oxygen species resulting in antimitotic activity culminating in the induction of cell death in breast cancer cell lines.
Collapse
|
13
|
Catalase immunoexpression in colorectal lesions. GASTROENTEROLOGY REVIEW 2020; 15:330-337. [PMID: 33777273 PMCID: PMC7988832 DOI: 10.5114/pg.2020.101562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 11/26/2019] [Indexed: 11/17/2022]
Abstract
Introduction It is generally accepted that the gastrointestinal tract, and especially the colon, is constantly exposed to reactive oxygen species (ROS) that may be responsible for the appearance of genetic mutations. To keep a steady-state control over ROS production-detoxification, organisms have evolved a defensive system. Nevertheless, many reports have described decreased level of antioxidant enzymes, especially catalase (CAT), in cancer tissues. Aim In this work we try to assess the immunohistochemical expression of CAT protein in colorectal adenoma and adenocarcinoma samples. Material and methods This study was performed on resected specimens obtained from 122 patients who had undergone surgical resection for colorectal cancer, and from 120 patients who had undergone colonoscopy. Paraffin- embedded, 4 µm-thick tissue sections were stained for rabbit polyclonal anti CAT antibody obtained from GeneTex (cat. no. GTX110704). Results In adenoma strong immunoexpression was detected mainly in infiltrating mononuclear cells within lamina propria. High expression of CAT was significantly associated with grade of dysplasia (high grade vs. low grade, p = 0.037). In adenocarcinoma samples, the high level of CAT immunoexpression was significantly correlated with histological grade of tumour (G1 vs. G2 vs. G3, p = 0.001) and depth of invasion (T1 vs. T2 vs. T3 vs. T4, p = 0.003). Conclusions Development of colorectal cancer is associated with increased expression of CAT in the stage of adenoma and decreased expression in the stage of adenocarcinoma.
Collapse
|
14
|
Robinson R, Srinivasan M, Shanmugam A, Ward A, Ganapathy V, Bloom J, Sharma A, Sharma S. Interleukin-6 trans-signaling inhibition prevents oxidative stress in a mouse model of early diabetic retinopathy. Redox Biol 2020; 34:101574. [PMID: 32422539 PMCID: PMC7231846 DOI: 10.1016/j.redox.2020.101574] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/09/2020] [Accepted: 05/10/2020] [Indexed: 02/07/2023] Open
Abstract
Purpose Diabetic retinopathy (DR), a microvascular complication of diabetes, is the leading cause of visual disability and blindness in diabetic patients. Chronic hyperglycemia leads to increased oxidative stress and inflammation in the retina, resulting in microvascular damage. Our recent in vitro studies have demonstrated that inhibition of interleukin-6 (IL-6) trans-signaling significantly reduces oxidative stress in retinal endothelial cells. The purpose of this study was to further explore the relationship between IL-6 trans-signaling and oxidative stress using a streptozotocin (STZ) induced mouse model of early diabetic retinopathy. Methods Diabetes was induced in eight week-old male C57BL/6J mice using STZ injections. sgp130Fc (mouse sgp130Fc protein) treatment was used for inhibition of IL-6 trans-signaling. Studies were conducted to evaluate the effects of IL-6 trans-signaling on oxidative balance at the systemic and retinal level. Results Decreased antioxidant capacity and increased oxidative stress was observed in diabetic mice, which returned to near-normal levels with sgp130Fc treatment. Similarly, superoxide levels, lipid peroxidation, and markers of oxidative DNA damage were increased in the diabetic retina, and these effects were abrogated by sgp130Fc treatment. Inhibition of IL-6 trans-signaling also restored normal expression of catalase and endothelial nitric oxide synthase in mouse retinas. Conclusions Inhibition of IL-6 trans-signaling significantly reduces diabetes-induced oxidative damage at the systemic level and in the retina. These findings provide further evidence for the role of IL-6 trans-signaling in diabetes-mediated oxidative stress. Decreased antioxidant capacity and increased oxidative stress in mice with DR. Inhibition of L-6 trans-signaling restores catalase and eNOS in the retina. Inhibition of IL-6 trans-signaling reduces retinal oxidative damage.
Collapse
Affiliation(s)
- Rebekah Robinson
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Mukund Srinivasan
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Arul Shanmugam
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Alexander Ward
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Veena Ganapathy
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Justin Bloom
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Ashok Sharma
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA; Culver Vision Discovery Institute, Medical College of Georgia, Augusta University, Augusta, GA, USA; Department of Population Health Sciences, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Shruti Sharma
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA, USA; Culver Vision Discovery Institute, Medical College of Georgia, Augusta University, Augusta, GA, USA; Department of Ophthalmology, Medical College of Georgia, Augusta University, Augusta, GA, USA.
| |
Collapse
|
15
|
Forcados GE, Sallau AB, Muhammad A, Erukainure OL, James DB. Vitex doniana Leaves Extract Ameliorates Alterations Associated with 7, 12-Dimethyl Benz[a]Anthracene-Induced Mammary Damage in Female Wistar Rats. Nutr Cancer 2020; 73:98-112. [PMID: 32223342 DOI: 10.1080/01635581.2020.1743866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Vitex doniana leaves are used traditionally in West Africa for the treatment of swellings and cancer. We investigated if Vitex doniana leaves extract could ameliorate 7, 12-dimethylbenz[a]anthracene (DMBA)-induced mammary damage. Female Wistar rats aged 52 ± 2 day were administered 80 mg/kg DMBA. After monitoring for 150 day, rats were administered 0, 50, 100, 200 mg/kg Vitex doniana and 20 mg/kg Tamoxifen for 14 day. Serum estrogen receptor-α, IL-1β and TNF -α levels were determined using ELISA kits. Oxidative stress markers in mammary tissue homogenates were determined using standard spectrophotometric methods. Histopathological examination was done using hematoxylin and eosin staining and cyclooxygenase-2 (COX-2) expression using immunohistochemistry. Liquid chromatography-mass spectrometry was used to determine components present in the extract. Although tumors were not observed, significantly (p < 0.05) lower estrogen receptor-α, malondialdehyde, IL-1β and TNF -α levels, significantly (p < 0.05) higher glutathione and catalase activity, attenuation of malignant epithelial hyperplasia and mild COX-2 expression were observed in rats administered Vitex doniana when compared to DMBA-induced untreated control. Liquid chromatography-mass spectrometry analysis of the V. doniana extract revealed the presence of 4,5-dihydroxy-7-methoxy-6-methylflavone and vanillylamine, which are compounds with reported antioxidant and anti-inflammatory effects. Collectively, treatment with Vitex doniana ameliorated some derangement observed in DMBA-induced rats.
Collapse
Affiliation(s)
| | | | - Aliyu Muhammad
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Ochuko Lucky Erukainure
- Nutrition and Toxicology Division, Federal Institute of Industrial Research, Oshodi, Lagos, Nigeria.,Department of Pharmacology, University of the Free State, Bloemfontein, South Africa
| | - Dorcas Bolanle James
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
| |
Collapse
|
16
|
Glorieux C, Buc Calderon P. Cancer Cell Sensitivity to Redox-Cycling Quinones is Influenced by NAD(P)H: Quinone Oxidoreductase 1 Polymorphism. Antioxidants (Basel) 2019; 8:antiox8090369. [PMID: 31480790 PMCID: PMC6770057 DOI: 10.3390/antiox8090369] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 08/25/2019] [Accepted: 08/28/2019] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Cancer cell sensitivity to drugs may be associated with disturbed antioxidant enzymes expression. We investigated mechanisms of resistance by using oxidative stress-resistant MCF-7 breast cancer cells (Resox cells). Since nicotinamide adenine dinucleotide phosphate (NAD(P)H): quinone oxidoreductase-1 (NQO1) is modified in tumors and oxidative stress-resistant cells, we studied its role in cells exposed to β-lapachone, menadione, and doxorubicin. METHODS Normal mammary epithelial 250MK, MCF-7, and Resox cells were employed. NQO1 expression and enzyme activity were determined by quantitative polymerase chain reaction (RT-PCR), immunoblotting, and biochemical assays. Dicoumarol and gene silencing (siRNA) were used to modulate NQO1 expression and to assess its potential drug-detoxifying role. MTT (3-(4,5-dimethylthia-zolyl-2)-2,5-diphenyltetrazolium bromide) or clonogenic assays were used to investigate cytotoxicity. NQO1 variants, NQO1*1 (wt), and NQO1*2 (C609T), were obtained by transfecting NQO1-null MDA-MB-231 cell line. RESULTS Resox cells have higher NQO1 expression than MCF-7 cells. In 250MK cells its expression was low but enzyme activity was higher suggesting a variant NQO1 form in MCF-7 cells. MCF-7 and Resox cells are heterozygous NQO1*1 (wt)/ NQO1*2 (C609T). Both NQO1 polymorphism and NQO1 overexpression are main determinants for cell resistance during oxidative stress. NQO1 overexpression increases cell sensitivity to β-lapachone whereas NQO1*2 polymorphism triggers quinone-based chemotherapies-sensitivity. CONCLUSIONS NQO1 influences cancer cells redox metabolism and their sensitivity to drugs. We suggest that determining NQO1 polymorphism may be important when considering the use of quinone-based chemotherapeutic drugs.
Collapse
Affiliation(s)
- Christophe Glorieux
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Pedro Buc Calderon
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium.
- Facultad de Ciencias de la Salud, Universidad Arturo Prat, Iquique 1110939, Chile.
| |
Collapse
|
17
|
Calendula arvensis L. as an anti-cancer agent against breast cancer cell lines. Mol Biol Rep 2019; 46:2187-2196. [PMID: 30756331 DOI: 10.1007/s11033-019-04672-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 02/05/2019] [Indexed: 10/27/2022]
Abstract
Calendula arvensis L. is used in traditional folk medicine for the treatment of several diseases. Leaves, stems, and flowers of C. arvensis were extracted using a Soxhlet extractor with different solvents (i.e., hexane, chloroform, ethyl acetate, and methanol). The ethyl acetate extract of C. arvensis flowers (CAF EtOAC) had cytotoxic activity against MCF-7 and MDA-MB-231 breast cancer cells, with IC50 values of 70 and 78 µg/mL, respectively. Microscopic examination revealed concentration-dependent cell shrinkage, cell detachment, nuclear fragmentation, and chromatin condensation. The CAF EtOAC inhibited the migration of cultured cells in a scratch wounding assay, indicating a possible defense against metastasis. The same extract also caused apoptosis by downregulating Bcl-2 and upregulating Bax and caspase 3/7 activity. Phytochemical analyses revealed the presence of phenols and flavonoids, and gas chromatography-mass spectroscopy (GC-MS) revealed a high content of linolenic acid in the extract. Based on our data, the CAF EtOAC may provide active ingredients for the development of novel chemotherapeutics for breast cancer therapy.
Collapse
|
18
|
Oxidant stress induction and signalling in xenografted (human breast cancer-tissues) plus estradiol treated or N-ethyl-N-nitrosourea treated female rats via altered estrogen sulfotransferase (rSULT1E1) expressions and SOD1/catalase regulations. Mol Biol Rep 2018; 45:2571-2584. [PMID: 30315444 DOI: 10.1007/s11033-018-4425-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 10/05/2018] [Indexed: 12/16/2022]
Abstract
N-ethyl-N-nitrosourea (ENU) is highly used in rodent models of tumerogenesis/carcinogenesis. Xenografting human-cancer tissues/cells with estradiol (E2) treatment is also used to generate rodent-models of gynaecological cancers. The altered metabolic-redox environment leading to establishment of pre-tumorigenesis condition and their mechanism are less studied. Here, female Wister rats were treated with these drugs at their pre-tumerogenic dosage (one group ENU single intra-peritoneal dose of 90 mg/kg b.w. and another group were implanted with human breast tumor (stage-IIIB) and fed with 2.5 mg of 17β-estradiol once in a week for 4 months). After 4 months, animals were sacrificed; their serum and liver tissues were tested. A brief comparison was made with a rat model (regarded as positive control) of toxicity induced by mutagenic environmental pollutant arsenic (0.6 ppm daily/4 weeks). The increase in serum alkaline phosphatase and glutamate-pyruvate transaminase suggests the possible organ toxicity is favoured by the increase in hepatic/systemic free radicals and oxidative stress in all drug application models. But the increase in the serum E2 level as noted in the ELISA data with impairment in the hepatic estrogen sulfotransferase (SULT1E1) protein expression (immuno-blot data) were noticed with interfered hepatic free-thiols only in ENU and xenograft-E2 group compared to arsenic group. It is also evident in the in vitro result from E2/GSH/NAC added hepatic slices with altered antioxidant regulations. Moreover, impairment in hepatic SOD1, catalase and glutathiole peroxidase activities (PAGEzymographic data), especially in the ENU-treated group makes them more vulnerable to the oxidative threat in creating pre-tumerogenic microenvironment. This is evident in the result of their higher DNA-damage and histological abnormalities. The Bioinformatics study revealed an important role of rSULT1E1 in the regulations of E2 metabolism. This study is important for the exploration of the pre-tumerogenic condition by ENU and E2 by impairing SULT1E1 expression and E2 regulations via oxidant-stress signalling. The finding may help to find new therapeutic-targets to treat gynaecological-cancers more effectively.
Collapse
|
19
|
Pietrzak J, Spickett CM, Płoszaj T, Virág L, Robaszkiewicz A. PARP1 promoter links cell cycle progression with adaptation to oxidative environment. Redox Biol 2018; 18:1-5. [PMID: 29886395 PMCID: PMC5991907 DOI: 10.1016/j.redox.2018.05.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/30/2018] [Accepted: 05/31/2018] [Indexed: 01/01/2023] Open
Abstract
Although electrophiles are considered as detrimental to cells, accumulating recent evidence indicates that proliferating non-cancerous and particularly cancerous cells utilize these agents for pro-survival and cell cycle promoting signaling. Hence, the redox shift to mild oxidant release must be balanced by multiple defense mechanisms. Our latest findings demonstrate that cell cycle progression, which dictates oxidant level in stress-free conditions, determines PARP1 transcription. Growth modulating factors regulate CDK4/6-RBs-E2Fs axis. In cells arrested in G1 and G0, RB1-E2F1 and RBL2-E2F4 dimers recruit chromatin remodelers such as HDAC1, SWI/SNF and PRC2 to condense chromatin and turn off transcription. Release of retinoblastoma-based repressive complexes from E2F-dependent gene promoters in response to cell transition to S phase enables transcription of PARP1. This enzyme contributes to repair of oxidative DNA damage by supporting several strand break repair pathways and nucleotide or base excision repair pathways, as well as acting as a co-activator of transcription factors such as NRF2 and HIF1a, which control expression of antioxidant enzymes involved in removal of electrophiles and secondary metabolites. Furthermore, PARP1 is indispensible for transcription of the pro-survival kinases MAP2K6, ERK1/2 and AKT1, and for maintaining MAPK activity by suppressing transcription of the MAPK inhibitor, MPK1. In summary, cell cycle controlled PARP1 transcription helps cells to adapt to a pro-oxidant redox shift.
Collapse
Affiliation(s)
- Julita Pietrzak
- Department of General Biophysics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland
| | - Corinne M Spickett
- School of Life & Health Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK
| | - Tomasz Płoszaj
- Department of Molecular Biology, Medical University of Lodz, Narutowicza 60, 90-136 Lodz, Poland
| | - László Virág
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; MTA-DE Cell Biology and Signaling Research Group, Debrecen, Hungary
| | - Agnieszka Robaszkiewicz
- Department of General Biophysics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| |
Collapse
|
20
|
Catalase and nonalcoholic fatty liver disease. Pflugers Arch 2018; 470:1721-1737. [PMID: 30120555 DOI: 10.1007/s00424-018-2195-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 08/01/2018] [Accepted: 08/06/2018] [Indexed: 02/06/2023]
Abstract
Obesity and insulin resistance are considered the main causes of nonalcoholic fatty liver disease (NAFLD), and oxidative stress accelerates the progression of NAFLD. Free fatty acids, which are elevated in the liver by obesity or insulin resistance, lead to incomplete oxidation in the mitochondria, peroxisomes, and microsomes, leading to the production of reactive oxygen species (ROS). Among the ROS generated, H2O2 is mainly produced in peroxisomes and decomposed by catalase. However, when the H2O2 concentration increases because of decreased expression or activity of catalase, it migrates to cytosol and other organelles, causing cell injury and participating in the Fenton reaction, resulting in serious oxidative stress. To date, numerous studies have been shown to inhibit the pathogenesis of NAFLD, but treatment for this disease mainly depends on weight loss and exercise. Various molecules such as vitamin E, metformin, liraglutide, and resveratrol have been proposed as therapeutic agents, but further verification of the dose setting, clinical application, and side effects is needed. Reducing oxidative stress may be a fundamental method for improving not only the progression of NAFLD but also obesity and insulin resistance. However, the relationship between NAFLD progression and antioxidants, particularly catalase, which is most commonly expressed in the liver, remains unclear. Therefore, this review summarizes the role of catalase, focusing on its potential therapeutic effects in NAFLD progression.
Collapse
|
21
|
Glucose-regulated protein of 94 kDa contributes to the development of an aggressive phenotype in breast cancer cells. Biomed Pharmacother 2018; 105:115-120. [PMID: 29852388 DOI: 10.1016/j.biopha.2018.05.106] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/18/2018] [Accepted: 05/18/2018] [Indexed: 12/28/2022] Open
Abstract
Grp94 plays an essential role in protein assembly. We previously suggested that Grp94 overexpression is involved in tumor aggressiveness. However, the underlying mechanisms remain unknown. Since many tumors display high Grp94 levels, we investigated the effects of tumor microenvironment on the regulation of this chaperone expression. First, we found out that hypoxia did not change Grp94 expression in the human tumor cell lines MCF-7 (breast cancer) and HepG2 (liver cancer). Second, glucose deprivation significantly increased Grp94 protein levels. Subsequently, we focused in the putative role of Grp94 in the acquisition of an aggressive phenotype by cancer cells. Using a more aggressive cancer cell model (MDA-MB-231 breast tumor cells), we found out that Grp94 knockdown using siRNA decreased the invasive capacity of cancer cells. Moreover, cells with decreased Grp94 levels displayed an enhanced sensitivity of tumor cells to doxorubicin, a standard drug in the treatment of breast cancer. Taken together, our results suggest that the expression of Grp94 is linked to tumor aggressiveness. Therefore, targeting Grp94 could be an effective way to inhibit tumor growth improving chemotherapy outcome.
Collapse
|
22
|
Li C, Liu Y, Fu Y, Huang T, Kang L, Li C. The antiproliferative activity of di-2-pyridylketone dithiocarbamate is partly attributed to catalase inhibition: detailing the interaction by spectroscopic methods. MOLECULAR BIOSYSTEMS 2018; 13:1817-1826. [PMID: 28714505 DOI: 10.1039/c7mb00032d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The bioactivity of drugs is attributed to their interaction with biological molecules, embodied in either their direct or indirect influence on enzyme activity and conformation. Di-2-pyridylketone hydrazine dithiocarbamate (DpdtC) exhibits significant antitumor activity in our preliminary study. We speculated that its activity may partly stem from enzyme inhibition due to strong metal chelating ability. To this end, we assessed its effect on catalase from erythrocytes and found evidence of inhibition, which was further confirmed by ROS determination in vivo. Thus, detailing the interaction between the agent and catalase via spectroscopic methods and molecular docking was required to obtain information on both the dynamics and thermodynamic parameters. The Lineweaver-Burk plot implied an uncompetitive pattern between DpdtC and catalase from beef liver, and IC50 = ∼7 μM. The thermodynamic parameters from fluorescence quenching measurements indicated that DpdtC could bind to catalase with moderate affinity (Ka = approximately 104 M-1). CD spectra revealed that DpdtC could significantly disrupt the secondary structure of catalase. Docking studies indicated that DpdtC bound to a flexible region of catalase, involving hydrogen bonds and salt bond; this was consistent with thermodynamic results from spectral investigations. Our data clearly showed that catalase inhibition of DpdtC was not due to direct chelation of iron from heme (killing), but through an allosteric effect. Thus, it can be concluded that the antiproliferative activity of DpdtC is partially attributed to its catalase inhibition.
Collapse
Affiliation(s)
- Cuiping Li
- Department of Molecular Biology & Biochemistry, Xinxiang Medical University, Xinxiang, Henan 453003, P. R. China.
| | | | | | | | | | | |
Collapse
|
23
|
Glorieux C, Calderon PB. Catalase down-regulation in cancer cells exposed to arsenic trioxide is involved in their increased sensitivity to a pro-oxidant treatment. Cancer Cell Int 2018; 18:24. [PMID: 29467594 PMCID: PMC5819285 DOI: 10.1186/s12935-018-0524-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 02/16/2018] [Indexed: 11/21/2022] Open
Abstract
Background Pro-oxidant drugs have been proposed for treating certain cancers but the resistance developed by cancer cells to oxidative stress limits its potential use in clinics. To understand the mechanisms underlying resistance to oxidative stress, we found that the chronic exposure to an H2O2-generating system (ascorbate/menadione, Asc/Men) or catalase overexpression (CAT3 cells) increased the resistance of cancer cells to oxidative stress, likely by increasing the antioxidant status of cancer cells. Methods Modulation of catalase expression was performed by either protein overexpression or protein down-regulation using siRNA against catalase and aminotriazole as pharmacological inhibitor. The former approach was done by transfecting cells with a plasmid construct containing human catalase cDNA (CAT3 cells, derived from MCF-7 breast cancer cell line) or by generating resistant cells through chronic exposure to an oxidant injury (Resox cells). Cell survival was monitored by using the MTT reduction assay and further calculation of IC50 values. Protein expression was done by Western blots procedures. The formation of reactive oxygen species was performed by flow cytometry. The transcriptional activity of human catalase promoter was assessed by using transfected cells with a plasmid containing the − 1518/+ 16 promoter domain. Results Using Resox and CAT3 cells (derived from MCF-7 breast cancer cell line) as models for cancer resistance to pro-oxidative treatment, we found that arsenic trioxide (ATO) remarkably sensitized Resox and CAT3 cells to Asc/Men treatment. Since catalase is a key antioxidant enzyme involved in detoxifying Asc/Men (as shown by siRNA-mediated catalase knockdown) that is overexpressed in resistant cells, we hypothesized that ATO might regulate the expression levels of catalase. Consistently, catalase protein level is decreased in Resox cells when incubated with ATO likely by a decreased transcriptional activity of the catalase promoter. Conclusions Our findings support the proposal that ATO should be administered in combination with pro-oxidant drugs to enhance cancer cell death in solid tumors.
Collapse
Affiliation(s)
- Christophe Glorieux
- 1Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain, MNUT 7309, LDRI, UCL Avenue E. Mounier 73, 1200 Brussels, Belgium.,3Present Address: State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510275 China
| | - Pedro Buc Calderon
- 1Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université catholique de Louvain, MNUT 7309, LDRI, UCL Avenue E. Mounier 73, 1200 Brussels, Belgium.,2Facultad de Ciencias de la Salud, Universidad Arturo Prat, 1100000 Iquique, Chile
| |
Collapse
|
24
|
Evaluation of Potential Mechanisms Controlling the Catalase Expression in Breast Cancer Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018. [PMID: 29535798 PMCID: PMC5829333 DOI: 10.1155/2018/5351967] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Development of cancer cell resistance against prooxidant drugs limits its potential clinical use. MCF-7 breast cancer cells chronically exposed to ascorbate/menadione became resistant (Resox cells) by increasing mainly catalase activity. Since catalase appears as an anticancer target, the elucidation of mechanisms regulating its expression is an important issue. In MCF-7 and Resox cells, karyotype analysis showed that chromosome 11 is not altered compared to healthy mammary epithelial cells. The genomic gain of catalase locus observed in MCF-7 and Resox cells cannot explain the differential catalase expression. Since ROS cause DNA lesions, the activation of DNA damage signaling pathways may influence catalase expression. However, none of the related proteins (i.e., p53, ChK) was activated in Resox cells compared to MCF-7. The c-abl kinase may lead to catalase protein degradation via posttranslational modifications, but neither ubiquitination nor phosphorylation of catalase was detected after catalase immunoprecipitation. Catalase mRNA levels did not decrease after actinomycin D treatment in both cell lines. DNMT inhibitor (5-aza-2′-deoxycytidine) increased catalase protein level in MCF-7 and its resistance to prooxidant drugs. In line with our previous report, chromatin remodeling appears as the main regulator of catalase expression in breast cancer after chronic exposure to an oxidative stress.
Collapse
|
25
|
Cornelius N, Wardman JH, Hargreaves IP, Neergheen V, Bie AS, Tümer Z, Nielsen JE, Nielsen TT. Evidence of oxidative stress and mitochondrial dysfunction in spinocerebellar ataxia type 2 (SCA2) patient fibroblasts: Effect of coenzyme Q10 supplementation on these parameters. Mitochondrion 2017; 34:103-114. [PMID: 28263872 DOI: 10.1016/j.mito.2017.03.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 02/11/2017] [Accepted: 03/01/2017] [Indexed: 02/05/2023]
Abstract
Spinocerebellar ataxia type 2 (SCA2) is a rare neurodegenerative disorder caused by a CAG repeat expansion in the ataxin-2 gene. We show increased oxidative stress, abnormalities in the antioxidant system, changes in complexes involved in oxidative phosphorylation and changes in mitochondrial morphology in SCA2 patient fibroblasts compared to controls, and we show that treatment with CoQ10 can partially reverse these changes. Together, our results suggest that oxidative stress and mitochondrial dysfunction may be contributory factors to the pathophysiology of SCA2 and that therapeutic strategies involving manipulation of the antioxidant system could prove to be of clinical benefit.
Collapse
Affiliation(s)
- Nanna Cornelius
- Neurogenetics Research Laboratory, Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark
| | - Jonathan H Wardman
- Neurogenetics Research Laboratory, Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark
| | - Iain P Hargreaves
- Pharmacy and Biomolecular Sciences, James Parsons Building, John Moore's University, Liverpool L3 3AF, United Kingdom
| | - Viruna Neergheen
- Neurometabolic Unit, National Hospital for Neurology and Neurosurgery, Queen Square, London, United Kingdom
| | - Anne Sigaard Bie
- Neurogenetics Research Laboratory, Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark
| | - Zeynep Tümer
- Applied Human Molecular Genetics, Kennedy Center, Department of Clinical Genetics, Rigshospitalet, Glostrup, University of Copenhagen, Denmark
| | - Jørgen E Nielsen
- Neurogenetics Research Laboratory, Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark; Danish Dementia Research Centre, Neurogenetics Clinic, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark; Section of Neurogenetics, Department of Cellular and Molecular Medicine, The Panum Institute, University of Copenhagen, Denmark.
| | - Troels T Nielsen
- Neurogenetics Research Laboratory, Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark
| |
Collapse
|
26
|
Ramsaha S, Neergheen-Bhujun VS, Verma S, Kumar A, Bharty RK, Chaudhary AK, Sharma P, Singh RK, Huzar Futty Beejan P, Kyung-Sun K, Bahorun T. Modulation of hepatocarcinogenesis in N-methyl-N-nitrosourea treated Balb/c mice by mushroom extracts. Food Funct 2016; 7:594-609. [PMID: 26574664 DOI: 10.1039/c5fo00870k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The hepatoprotective potential of edible mushrooms from Mauritius, namely Pleurotus sajor-caju and Agaricus bisporus was evaluated using an N-methyl-N-nitrosourea (MNU)-induced hepatocarcinogenesis Balb/c mice model. Mushroom extracts restored normal weight in MNU treated mice over a 3 month supplementation period. Blood parameter analyses indicated a clear modulation of hemoglobin concentration, leukocyte, platelet, lymphocyte, neutrophil, monocyte and eosinophil counts in MNU-induced mice (p < 0.05). Mushroom extract supplementation effectively reduced oxidative damage in MNU-primed mice, which was marked by a significant decrease in the extent of lipid peroxidation (p < 0.05) and a concomitant increase in the enzymatic antioxidant levels, primarily catalase, superoxide dismutase, glutathione reductase and peroxidase, and FRAP values (p < 0.05). DNA protective effects of the extracts were confirmed by Raman spectroscopy, where, the MNU-DNA interaction, as evidenced by an intense peak at 1254 cm(-1), was normalized. The findings demonstrate hepatoprotective, immunomodulatory and anti-carcinogenic effects and suggest the use of mushrooms as potential dietary prophylactics in cancer chemoprevention.
Collapse
Affiliation(s)
- Srishti Ramsaha
- Department of Health Sciences, Faculty of Science, University of Mauritius, Réduit, Republic of Mauritius. and ANDI Centre of Excellence for Biomedical and Biomaterials Research, CBBR, Building, MSIRI, University of Mauritius, Réduit, Republic of Mauritius.
| | - Vidushi S Neergheen-Bhujun
- Department of Health Sciences, Faculty of Science, University of Mauritius, Réduit, Republic of Mauritius. and ANDI Centre of Excellence for Biomedical and Biomaterials Research, CBBR, Building, MSIRI, University of Mauritius, Réduit, Republic of Mauritius.
| | - Shalini Verma
- Institute of Biosciences and Biotechnology, Chhatrapati Shahuji Maharaj University, Kanpur, Uttar Pradesh, India
| | - Ashok Kumar
- Deen Dayal Upadhyay Gorakhpur University, Gorakhpur, Uttar Pradesh, India
| | - Rahul Kumar Bharty
- Institute of Biosciences and Biotechnology, Chhatrapati Shahuji Maharaj University, Kanpur, Uttar Pradesh, India
| | - Amit Kumar Chaudhary
- Institute of Biosciences and Biotechnology, Chhatrapati Shahuji Maharaj University, Kanpur, Uttar Pradesh, India
| | - Poornima Sharma
- Department of Physics, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Ranjan Kumar Singh
- Department of Physics, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Priya Huzar Futty Beejan
- Mushroom Unit, Food and Agricultural Research and Extension Institute, La Brasserie, Republic of Mauritius
| | - Kang Kyung-Sun
- Department of Veterinary Public Health, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Theeshan Bahorun
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, CBBR, Building, MSIRI, University of Mauritius, Réduit, Republic of Mauritius.
| |
Collapse
|
27
|
Glorieux C, Sandoval JM, Fattaccioli A, Dejeans N, Garbe JC, Dieu M, Verrax J, Renard P, Huang P, Calderon PB. Chromatin remodeling regulates catalase expression during cancer cells adaptation to chronic oxidative stress. Free Radic Biol Med 2016; 99:436-450. [PMID: 27591797 DOI: 10.1016/j.freeradbiomed.2016.08.031] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 08/27/2016] [Accepted: 08/28/2016] [Indexed: 12/31/2022]
Abstract
Regulation of ROS metabolism plays a major role in cellular adaptation to oxidative stress in cancer cells, but the molecular mechanism that regulates catalase, a key antioxidant enzyme responsible for conversion of hydrogen peroxide to water and oxygen, remains to be elucidated. Therefore, we investigated the transcriptional regulatory mechanism controlling catalase expression in three human mammary cell lines: the normal mammary epithelial 250MK primary cells, the breast adenocarcinoma MCF-7 cells and an experimental model of MCF-7 cells resistant against oxidative stress resulting from chronic exposure to H2O2 (Resox), in which catalase was overexpressed. Here we identify a novel promoter region responsible for the regulation of catalase expression at -1518/-1226 locus and the key molecules that interact with this promoter and affect catalase transcription. We show that the AP-1 family member JunB and retinoic acid receptor alpha (RARα) mediate catalase transcriptional activation and repression, respectively, by controlling chromatin remodeling through a histone deacetylases-dependent mechanism. This regulatory mechanism plays an important role in redox adaptation to chronic exposure to H2O2 in breast cancer cells. Our study suggests that cancer adaptation to oxidative stress may be regulated by transcriptional factors through chromatin remodeling, and reveals a potential new mechanism to target cancer cells.
Collapse
Affiliation(s)
- Christophe Glorieux
- Université catholique de Louvain, Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, 1200 Brussels, Belgium; Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, 510275 Guangzhou, China.
| | - Juan Marcelo Sandoval
- Université catholique de Louvain, Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, 1200 Brussels, Belgium; Facultad de Ciencias de la Salud, Universidad Arturo Prat, 1100000 Iquique, Chile
| | - Antoine Fattaccioli
- Laboratory of Biochemistry and Cell Biology (URBC), NAmur Research Institute for LIfe Sciences (NARILIS), University of Namur, 5000 Namur, Belgium
| | - Nicolas Dejeans
- Université catholique de Louvain, Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, 1200 Brussels, Belgium
| | - James C Garbe
- Biological Systems and Engineering, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Marc Dieu
- Mass Spectrometry University of Namur (MaSUN), University of Namur, 5000 Namur, Belgium
| | - Julien Verrax
- Université catholique de Louvain, Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, 1200 Brussels, Belgium
| | - Patricia Renard
- Laboratory of Biochemistry and Cell Biology (URBC), NAmur Research Institute for LIfe Sciences (NARILIS), University of Namur, 5000 Namur, Belgium
| | - Peng Huang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, 510275 Guangzhou, China; Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Pedro Buc Calderon
- Université catholique de Louvain, Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, 1200 Brussels, Belgium; Facultad de Ciencias de la Salud, Universidad Arturo Prat, 1100000 Iquique, Chile.
| |
Collapse
|
28
|
de Aquino PF, Carvalho PC, Nogueira FCS, da Fonseca CO, de Souza Silva JCT, Carvalho MDGDC, Domont GB, Zanchin NIT, Fischer JDSDG. A Time-Based and Intratumoral Proteomic Assessment of a Recurrent Glioblastoma Multiforme. Front Oncol 2016; 6:183. [PMID: 27597932 PMCID: PMC4992702 DOI: 10.3389/fonc.2016.00183] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 08/02/2016] [Indexed: 12/17/2022] Open
Abstract
Tumors consist of cells in different stages of transformation with molecular and cellular heterogeneity. By far, heterogeneity is the hallmark of glioblastoma multiforme (GBM), the most malignant and aggressive type of glioma. Most proteomic studies aim in comparing tumors from different patients, but here we dive into exploring the intratumoral proteome diversity of a single GBM. For this, we profiled tumor fragments from the profound region of the same patient’s GBM but obtained from two surgeries a year’s time apart. Our analysis also included GBM‘s fragments from different anatomical regions. Our quantitative proteomic strategy employed 4-plex iTRAQ peptide labeling followed by a four-step strong cation chromatographic separation; each fraction was then analyzed by reversed-phase nano-chromatography coupled on-line with an Orbitrap-Velos mass spectrometer. Unsupervised clustering grouped the proteomic profiles into four major distinct groups and showed that most changes were related to the tumor’s anatomical region. Nevertheless, we report differentially abundant proteins from GBM’s fragments of the same region but obtained 1 year apart. We discuss several key proteins (e.g., S100A9) and enriched pathways linked with GBM such as the Ras pathway, RHO GTPases activate PKNs, and those related to apoptosis, to name a few. As far as we know, this is the only report that compares GBM fragments proteomic profiles from the same patient. Ultimately, our results fuel the forefront of scientific discussion on the importance in exploring the richness of subproteomes within a single tissue sample for a better understanding of the disease, as each tumor is unique.
Collapse
Affiliation(s)
- Priscila F de Aquino
- Laboratory of Microbial Diversity from Amazon with Importance for Health, Instituto Leônidas e Maria Deane, Fiocruz , Manaus, Amazonas , Brazil
| | - Paulo Costa Carvalho
- Laboratory for Proteomics and Protein Engineering, Carlos Chagas Institute, Fiocruz, Curitiba, Paraná, Brazil; Laboratory of Toxinology, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Fábio C S Nogueira
- Laboratory for Protein Chemistry, Chemistry Institute, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Clovis Orlando da Fonseca
- Department of General and Specialized Surgery, Antonio Pedro University Hospital, Fluminense Federal University , Rio de Janeiro , Brazil
| | | | - Maria da Gloria da Costa Carvalho
- Laboratory of Molecular Pathology, Department of Pathology, University Hospital Clementino Fraga Filho, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Gilberto B Domont
- Laboratory for Protein Chemistry, Chemistry Institute, Federal University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Nilson I T Zanchin
- Laboratory for Proteomics and Protein Engineering, Carlos Chagas Institute, Fiocruz , Curitiba, Paraná , Brazil
| | | |
Collapse
|
29
|
Overexpression of NAD(P)H:quinone oxidoreductase 1 (NQO1) and genomic gain of the NQO1 locus modulates breast cancer cell sensitivity to quinones. Life Sci 2015; 145:57-65. [PMID: 26687450 DOI: 10.1016/j.lfs.2015.12.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 11/04/2015] [Accepted: 12/07/2015] [Indexed: 01/28/2023]
Abstract
AIMS Alterations in the expression of antioxidant enzymes are associated with changes in cancer cell sensitivity to chemotherapeutic drugs (menadione and β-lapachone). Mechanisms of acquisition of resistance to pro-oxidant drugs were investigated using a model of oxidative stress-resistant MCF-7 breast cancer cells (Resox cells). MAIN METHODS FISH experiments were performed in tumor biopsy and breast cancer cells to characterize the pattern of the NQO1 gene. SNP-arrays were conducted to detect chromosomal imbalances. Finally, the importance of NQO1 overexpression in the putative acquisition of either drug resistance or an increased sensitivity to quinones by cancer cells was investigated by immunoblotting and cytotoxicity assays. KEY FINDINGS Genomic gain of the chromosomal band 16q22 was detected in Resox cells compared to parental breast cancer MCF-7 cells and normal human mammary epithelial 250MK cells. This genomic gain was associated with amplification of the NQO1 gene in one tumor biopsy as well as in breast cancer cell lines. Using different breast cell models, we found that NQO1 overexpression was a main determinant for a potential chemotherapy resistance or an increased sensitivity to quinone-bearing compounds. SIGNIFICANCE Because NQO1 is frequently modified in tumors at genomic and transcriptomic levels, the impact of NQO1 modulation on breast cancer cell sensitivity places NQO1 as a potential link between cancer redox alterations and resistance to chemotherapy. Thus, the NQO1 gene copy number and NQO1 activity should be considered when quinone-bearing molecules are being utilized as potential drugs against breast tumors.
Collapse
|
30
|
Madajewski B, Boatman MA, Chakrabarti G, Boothman DA, Bey EA. Depleting Tumor-NQO1 Potentiates Anoikis and Inhibits Growth of NSCLC. Mol Cancer Res 2015; 14:14-25. [PMID: 26553038 DOI: 10.1158/1541-7786.mcr-15-0207-t] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 11/01/2015] [Indexed: 12/20/2022]
Abstract
UNLABELLED The fundamental role that NAD(P)H/quinone oxidoreductase 1 (NQO1) plays, in normal cells, as a cytoprotective enzyme guarding against stress induced by reactive oxygen species (ROS) is well documented. However, what is not known is whether the observed overexpression of NQO1 in neoplastic cells contributes to their survival. The current study discovered that depleting NQO1 expression in A549 and H292 lung adenocarcinoma cells caused an increase in ROS formation, inhibited anchorage-independent growth, increased anoikis sensitization, and decreased three-dimensional tumor spheroid invasion. These in vivo data further implicate tumor-NQO1 expression in a protumor survival role, because its depletion suppressed cell proliferation and decreased lung tumor xenograft growth. Finally, these data reveal an exploitable link between tumor-NQO1 expression and the survival of lung tumors because NQO1 depletion significantly decreased the percentage of ALDH((high)) cancer cells within the tumor population. IMPLICATIONS Loss of tumor-NQO1 expression inhibits tumor growth and suggests that novel therapeutics directed at tumor-NQO1 may have clinical benefit.
Collapse
Affiliation(s)
- Brian Madajewski
- Department of Pharmaceutical Sciences, Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, West Virginia 26506
| | - Michael A Boatman
- Department of Pharmaceutical Sciences, Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, West Virginia 26506
| | - Gaurab Chakrabarti
- Department of Pharmacology, Laboratory of Molecular Cell Stress Responses, Program in Cell Stress and Cancer Nanomedicine, Simmons Cancer Center, UT Southwestern Medical Center at Dallas, TX 75390-8807
| | - David A Boothman
- Department of Pharmacology, Laboratory of Molecular Cell Stress Responses, Program in Cell Stress and Cancer Nanomedicine, Simmons Cancer Center, UT Southwestern Medical Center at Dallas, TX 75390-8807
| | - Erik A Bey
- Department of Pharmaceutical Sciences, Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, West Virginia 26506
| |
Collapse
|
31
|
Glorieux C, Zamocky M, Sandoval JM, Verrax J, Calderon PB. Regulation of catalase expression in healthy and cancerous cells. Free Radic Biol Med 2015; 87:84-97. [PMID: 26117330 DOI: 10.1016/j.freeradbiomed.2015.06.017] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 06/08/2015] [Accepted: 06/10/2015] [Indexed: 11/28/2022]
Abstract
Catalase is an important antioxidant enzyme that dismutates hydrogen peroxide into water and molecular oxygen. The catalase gene has all the characteristics of a housekeeping gene (no TATA box, no initiator element sequence, high GC content in promoter) and a core promoter that is highly conserved among species. We demonstrate in this review that within this core promoter, the presence of DNA binding sites for transcription factors, such as NF-Y and Sp1, plays an essential role in the positive regulation of catalase expression. Additional transcription factors, such as FoxO3a, are also involved in this regulatory process. There is strong evidence that the protein Akt/PKB in the PI3K signaling pathway plays a major role in the expression of catalase by modulating the activity of FoxO3a. Over the past decade, other transcription factors (PPARγ, Oct-1, etc.), as well as genetic, epigenetic, and posttranscriptional processes, have emerged as crucial contributors to the regulation of catalase expression. Altered expression levels of catalase have been reported in cancer tissues compared to their normal counterparts. Deciphering the molecular mechanisms that regulate catalase expression could, therefore, be of crucial importance for the future development of pro-oxidant cancer chemotherapy.
Collapse
Affiliation(s)
- Christophe Glorieux
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Marcel Zamocky
- Division of Biochemistry, Department of Chemistry, University of Natural Resources and Life Sciences (BOKU), A-1190 Vienna, Austria; Institute of Molecular Biology, Slovak Academy of Sciences, SK-84551 Bratislava, Slovakia
| | - Juan Marcelo Sandoval
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Julien Verrax
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Pedro Buc Calderon
- Toxicology and Cancer Biology Research Group, Louvain Drug Research Institute, Université catholique de Louvain, 1200 Brussels, Belgium; Facultad de Ciencias de la Salud, Universidad Arturo Prat, 1100000 Iquique, Chile.
| |
Collapse
|
32
|
Madi A, Bransburg-Zabary S, Maayan-Metzger A, Dar G, Ben-Jacob E, Cohen IR. Tumor-associated and disease-associated autoantibody repertoires in healthy colostrum and maternal and newborn cord sera. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2015; 194:5272-81. [PMID: 25917091 PMCID: PMC4432729 DOI: 10.4049/jimmunol.1402771] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 03/31/2015] [Indexed: 02/07/2023]
Abstract
In this work, we studied autoantibody repertoires and Ig isotypes in 71 mothers and their 104 healthy newborns (including twins and triplets delivered term or premature). Newborns receive maternal IgG Abs via the placenta before birth, but developing infants must produce their own IgM and IgA Abs. We used an Ag microarray analysis to detect binding to a selection of 295 self-Ags, compared with 27 standard foreign Ags. The magnitude of binding to specific self-Ags was found to be not less than that to the foreign Ags. As expected, each newborn shared with its mother a similar IgG repertoire-manifest as early as the 24th week of gestation. IgM and IgA autoantibody repertoires in cord sera were highly correlated among the newborns and differed from their mothers' repertoires; the latter differed in sera and milk. The autoantibodies bound to self-Ags known to be associated with tumors and to autoimmune diseases. Thus, autoantibody repertoires in healthy humans--the immunological homunculus--arise congenitally, differ in maternal milk and sera, and mark the potential of the immune system to attack tumors, beneficially, or healthy tissues, harmfully; regulation of the tissue site, the dynamics, and the response phenotype of homuncular autoimmunity very likely affects health.
Collapse
Affiliation(s)
- Asaf Madi
- Faculty of Medicine, Tel Aviv University, 69978 Tel Aviv, Israel; School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv, Israel; Department of Neonatology, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, 5262100 Ramat Gan, Israel
| | - Sharron Bransburg-Zabary
- Faculty of Medicine, Tel Aviv University, 69978 Tel Aviv, Israel; School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv, Israel
| | - Ayala Maayan-Metzger
- Faculty of Medicine, Tel Aviv University, 69978 Tel Aviv, Israel; Department of Neonatology, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, 5262100 Ramat Gan, Israel
| | - Gittit Dar
- School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv, Israel
| | - Eshel Ben-Jacob
- School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv, Israel; Center for Theoretical Biological Physics, Rice University, Houston, TX 77005; and
| | - Irun R Cohen
- Department of Immunology, Weizmann Institute of Science, Rehovot 76100, Israel
| |
Collapse
|
33
|
Shah MH, Liu GS, Thompson EW, Dusting GJ, Peshavariya HM. Differential effects of superoxide dismutase and superoxide dismutase/catalase mimetics on human breast cancer cells. Breast Cancer Res Treat 2015; 150:523-34. [PMID: 25794772 DOI: 10.1007/s10549-015-3329-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 03/03/2015] [Indexed: 01/02/2023]
Abstract
Reactive oxygen species (ROS) such as superoxide and hydrogen peroxide (H2O2) have been implicated in development and progression of breast cancer. In the present study, we have evaluated the effects of the superoxide dismutase (SOD) mimetic MnTmPyP and the SOD/catalase mimetic EUK 134 on superoxide and H2O2 formation as well as proliferation, adhesion, and migration of MCF-7 and MDA-MB-231 cells. Superoxide and H2O2 production was examined using dihydroethidium and Amplex red assays, respectively. Cell viability and adhesion were measured using a tetrazolium-based MTT assay. Cell proliferation was determined using trypan blue assay. Cell cycle progression was analyzed using flow cytometry. Clonal expansion of a single cell was performed using a colony formation assay. Cell migration was measured using transwell migration assay. Dual luciferase assay was used to determine NF-κB reporter activity. EUK 134 effectively reduced both superoxide and H2O2, whereas MnTmPyP removed superoxide but enhanced H2O2 formation. EUK 134 effectively attenuated viability, proliferation, clonal expansion, adhesion, and migration of MCF-7 and MDA-MB-231 cells. In contrast, MnTmPyP only reduced clonal expansion of MCF-7 and MDA-MB-231 cells but had no effect on adhesion and cell cycle progression. Tumor necrosis factor-alpha-induced NF-κB activity was reduced by EUK 134, whereas MnTmPyP enhanced this activity. These data indicate that the SOD mimetic MnTmPyP and the SOD/catalase mimetic EUK 134 exert differential effects on breast cancer cell growth. Inhibition of H2O2 signaling using EUK 134-like compound might be a promising approach to breast cancer therapy.
Collapse
Affiliation(s)
- Manisha H Shah
- Victorian Breast Cancer Research, Invasion and Metastasis Unit, St. Vincent's Institute of Medical Research, 41 Victoria Parade, Fitzroy, VIC, 3065, Australia,
| | | | | | | | | |
Collapse
|
34
|
Catalase C-262T polymorphism and risk of prostate cancer: evidence from meta-analysis. Gene 2015; 558:265-70. [PMID: 25576221 DOI: 10.1016/j.gene.2015.01.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 01/01/2015] [Accepted: 01/02/2015] [Indexed: 11/20/2022]
Abstract
Catalase is an important endogenous antioxidant enzyme that detoxifies hydrogen peroxide to oxygen and water, thus limiting the deleterious effects of reactive oxygen species. Several studies investigated the role of the Catalase (CAT) C-262T gene polymorphism on the risk of prostate cancer (PCa), but get conflicting results. We performed a meta-analysis based on five studies, to determine whether Catalase C-262T polymorphism contributes to the risk of prostate cancer using odds ratios (OR) with 95% confidence intervals (CI). On the whole, our evidence indicates that CAT C-262T polymorphism significantly increases PCa risk in the allele comparison model (OR=1.094, 95% CI=1.015-1.178, P=0.018). In the stratified analysis by ethnicity, the same results are found among Caucasians (allele model, OR=1.090, 95% CI=1.009-1.177, P=0.028, dominant model, OR=1.108, 95% CI=1.023-1.201, P=0.012, recessive model, OR=1.379, 95% CI=1.158-1.641, P=0.000, homozygous model, OR=1.429, 95% CI=1.196-1.707, P=0.000, and heterozygote model, OR=1.224, 95% CI=1.020-1.469, P=0.030). In conclusion, this meta-analysis suggests a positive correlation between Catalase C-262T polymorphism and the development of PCa.
Collapse
|
35
|
Das F, Ghosh-Choudhury N, Dey N, Bera A, Mariappan MM, Kasinath BS, Ghosh Choudhury G. High glucose forces a positive feedback loop connecting Akt kinase and FoxO1 transcription factor to activate mTORC1 kinase for mesangial cell hypertrophy and matrix protein expression. J Biol Chem 2014; 289:32703-16. [PMID: 25288788 DOI: 10.1074/jbc.m114.605196] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
High glucose-induced Akt acts as a signaling hub for mesangial cell hypertrophy and matrix expansion, which are recognized as cardinal signatures for the development of diabetic nephropathy. How mesangial cells sustain the activated state of Akt is not clearly understood. Here we show Akt-dependent phosphorylation of the transcription factor FoxO1 by high glucose. Phosphorylation-deficient, constitutively active FoxO1 inhibited the high glucose-induced phosphorylation of Akt to suppress the phosphorylation/inactivation of PRAS40 and mTORC1 activity. In contrast, dominant negative FoxO1 increased the phosphorylation of Akt, resulting in increased mTORC1 activity similar to high glucose treatment. Notably, FoxO1 regulates high glucose-induced protein synthesis, hypertrophy, and expression of fibronectin and PAI-1. High glucose paves the way for complications of diabetic nephropathy through the production of reactive oxygen species (ROS). We considered whether the FoxO1 target antioxidant enzyme catalase contributes to sustained activation of Akt. High glucose-inactivated FoxO1 decreases the expression of catalase to increase the production of ROS. Moreover, we show that catalase blocks high glucose-stimulated Akt phosphorylation to attenuate the inactivation of FoxO1 and PRAS40, resulting in the inhibition of mTORC1 and mesangial cell hypertrophy and fibronectin and PAI-1 expression. Finally, using kidney cortices from type 1 diabetic OVE26 mice, we show that increased FoxO1 phosphorylation is associated with decreased catalase expression and increased fibronectin and PAI-1 expression. Together, our results provide the first evidence for the presence of a positive feedback loop for the sustained activation of Akt involving inactivated FoxO1 and a decrease in catalase expression, leading to increased ROS and mesangial cell hypertrophy and matrix protein expression.
Collapse
Affiliation(s)
| | - Nandini Ghosh-Choudhury
- Pathology, University of Texas Health Science Center at San Antonio, San Antonio, Texas 78229 From the Veterans Affairs Research and Geriatric Research and
| | | | | | | | - Balakuntalam S Kasinath
- the Departments of Medicine and From the Veterans Affairs Research and Geriatric Research and
| | - Goutam Ghosh Choudhury
- the Departments of Medicine and From the Veterans Affairs Research and Geriatric Research and Education and Clinical Center, South Texas Veterans Health Care System, San Antonio, Texas 78229 and
| |
Collapse
|
36
|
Do MT, Kim HG, Choi JH, Jeong HG. Metformin induces microRNA-34a to downregulate the Sirt1/Pgc-1α/Nrf2 pathway, leading to increased susceptibility of wild-type p53 cancer cells to oxidative stress and therapeutic agents. Free Radic Biol Med 2014; 74:21-34. [PMID: 24970682 DOI: 10.1016/j.freeradbiomed.2014.06.010] [Citation(s) in RCA: 134] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 06/10/2014] [Accepted: 06/14/2014] [Indexed: 01/09/2023]
Abstract
Sirtuin 1 (Sirt1) plays an important role in cellular redox balance and resistance to oxidative stress. Sirt1 exhibits oncogenic properties in wild-type p53 cancer cells, whereas it acts as a tumor suppressor in p53-mutated cancer cells. Here, we investigated the effects of metformin on Sirt1 expression in several cancer cell lines. Using human cancer cell lines that exhibit differential expression of p53, we found that metformin reduced Sirt1 protein levels in cancer cells bearing wild-type p53, but did not affect Sirt1 protein levels in cancer cell lines harboring mutant forms of p53. Metformin-induced p53 protein levels in wild-type p53 cancer cells resulted in upregulation of microRNA (miR)-34a. The use of a miR-34a inhibitor confirmed that metformin-induced miR-34a was required for Sirt1 downregulation. Metformin suppressed peroxisome proliferator-activated receptor γ (PPARγ) coactivator-1α (Pgc-1α) expression and its downstream target Nrf2 in MCF-7 cells. Genetic tools demonstrated that the reduction of Sirt1 and Pgc-1α by metformin caused Nrf2 downregulation via suppression of PPARγ transcriptional activity. Metformin reduced heme oxygenase-1 and superoxide dismutase 2 but upregulated catalase expression in MCF-7 cells. Metformin-treated MCF-7 cells had no increase in basal levels of reactive oxygen species but were more susceptible to oxidative stress. Furthermore, upregulation of death receptor 5 by metformin-mediated Sirt1 downregulation enhanced the sensitivity of wild-type p53 cancer cells to TRAIL-induced apoptosis. Our results demonstrated that metformin induces miR-34a to suppress the Sirt1/Pgc-1α/Nrf2 pathway and increases susceptibility of wild-type p53 cancer cells to oxidative stress and TRAIL-induced apoptosis.
Collapse
Affiliation(s)
- Minh Truong Do
- Department of Toxicology, College of Pharmacy, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Hyung Gyun Kim
- Department of Toxicology, College of Pharmacy, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Jae Ho Choi
- Department of Toxicology, College of Pharmacy, Chungnam National University, Daejeon 305-764, Republic of Korea
| | - Hye Gwang Jeong
- Department of Toxicology, College of Pharmacy, Chungnam National University, Daejeon 305-764, Republic of Korea.
| |
Collapse
|