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Gu C, Liu Z, Li Y, Yi M, Wang S, Fan X, Sun D, Zhang C, Yan X, Wu G. Endogenous FGF1 Deficiency Aggravates Doxorubicin-Induced Hepatotoxicity. TOXICS 2023; 11:925. [PMID: 37999577 PMCID: PMC10674342 DOI: 10.3390/toxics11110925] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/29/2023] [Accepted: 11/03/2023] [Indexed: 11/25/2023]
Abstract
Doxorubicin (DOX) is a broad-spectrum antineoplastic agent that widely used in clinic. However, its application is largely limited by its toxicity in multiple organs. Fibroblast growth factor 1 (FGF1) showed protective potential in various liver diseases, but the role of endogenous FGF1 in DOX-induced liver damage is currently unknown. Both wild-type (WT) and FGF1 knockout (FGF1-KO) mice were treated with DOX. DOX induced loss of body weight and liver weight and elevation of ALT and AST in WT mice, which were aggravated by FGF1 deletion. FGF1 deletion exacerbated hepatic oxidative stress mirrored by further elevated 3-nitrosative modification of multiple proteins and malondialdehyde content. These were accompanied by blunted compensatively antioxidative responses indicated by impaired upregulation of nuclear factor erythroid 2-related factor 2 and its downstream antioxidant gene expression. The aggravated oxidative stress was coincided with exacerbated cell apoptosis in DOX-treated FGF1-KO mice reflected by further increased TUNEL positive cell staining and BCL-2-associated X expression and caspase 3 cleavage. These detrimental changes in DOX-treated FGF1-KO mice were associated with worsened intestinal fibrosis and increased upregulation fibrotic marker connective tissue growth factor and α-smooth muscle actin expression. However, DOX-induced hepatic inflammatory responses were not further affected by FGF1 deletion. These results demonstrate that endogenous FGF1 deficiency aggravates DOX-induced liver damage and FGF1 is a potential therapeutic target for treatment of DOX-associated hepatoxicity.
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Affiliation(s)
- Chunjie Gu
- The Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Zijuan Liu
- The Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Yingjian Li
- The Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Mei Yi
- The Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Simeng Wang
- The Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
- Department of Clinical Translational Research, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325200, China
| | - Xia Fan
- The Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Da Sun
- Institute of Life Sciences, Wenzhou University, Wenzhou 325200, China
| | - Chi Zhang
- The Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
- Department of Clinical Translational Research, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325200, China
| | - Xiaoqing Yan
- The Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Guicheng Wu
- Department of Hepatology, Chongqing University Three Gorges Hospital, Chongqing 404000, China
- Chongqing Municipality Clinical Research Center for Endocrine and Metabolic Diseases, Chongqing 400015, China
- School of Medicine, Chongqing University, Chongqing 400030, China
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2
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Demir M, Altinoz E, Koca O, Elbe H, Onal MO, Bicer Y, Karayakali M. Antioxidant and anti-inflammatory potential of crocin on the doxorubicin mediated hepatotoxicity in Wistar rats. Tissue Cell 2023; 84:102182. [PMID: 37523948 DOI: 10.1016/j.tice.2023.102182] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/18/2023] [Accepted: 07/25/2023] [Indexed: 08/02/2023]
Abstract
Doxorubicin (DXR) is widely used in cancer treatment. However, it has not yet been possible to prevent the side effects of DXR. The aim of this study was to investigate the hepatoprotective effect of crocin against DXR used in cancer treatment. For this reason; forty Wistar rats (male-250-300 g) were allocated into four groups (n = 10/group): Control, Crocin, DXR and DXR+Crocin. Control and Crocin groups were administered saline and crocin (40 mg/kg, i.p) for 15 days, respectively. DXR group, cumulative dose 12 mg/kg DXR, was administered for 12 days via 48 h intervals in six injections (2 mg/kg each, i.p). DXR+Crocin group, crocin (40 mg/kg-i.p) was administered for 15 days, and DXR was given as in the DXR group. The results revealed that serum liver markers (alanine transaminase (ALT), aspartate transaminase (AST), and alkaline phosphatase (ALP) increased significantly after DXR administration but recovered after crocin therapy. In addition, lipid peroxidation (MDA), and inflammatory cytokine (TNF-α) increased after DXR application and the antioxidative defense system (GSH, SOD, CAT) significantly decreased and re-achieved by crocin treatment. Our results conclude that crocin treatment was related to ameliorated hepatocellular architecture and reduced hepatic oxidative stress and inflammation in rats with DXR-induced hepatotoxicity.
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Affiliation(s)
- M Demir
- Department of Physiology, Faculty of Medicine, Karabuk University, Karabuk, Turkey.
| | - E Altinoz
- Department of Medical Biochemistry, Faculty of Medicine, Karabuk University, Karabuk, Turkey
| | - O Koca
- Department of Biochemistry, Karabuk University Education and Research Hospital, Karabuk, Turkey
| | - H Elbe
- Department of Histology and Embryology, Faculty of Medicine, Mugla Sıtkı Kocman University, Mugla, Turkey
| | - M O Onal
- Department of Histology and Embryology, Faculty of Medicine, Mugla Sıtkı Kocman University, Mugla, Turkey
| | - Y Bicer
- Department of Medical Biochemistry, Faculty of Medicine, Karabuk University, Karabuk, Turkey
| | - M Karayakali
- Department of Medical Biochemistry, Faculty of Medicine, Karabuk University, Karabuk, Turkey
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Dada FA, Oyeleye SI, Adefegha SA, Babatola LJ, Adebayo A. Evaluation of different almond ( Terminalia catappa) extracts against oxidative stress induced by cyclosporine in brain and liver of rats. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2021; 18:727-735. [PMID: 33852232 DOI: 10.1515/jcim-2020-0193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 09/21/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVES This study was designed to evaluate the ameliorative effect of almond (Terminalia catappa) leaf (ALE) and stem bark (ABE) extracts on the enzyme activities and oxidative stress markers in the brain and liver tissues of cyclosporine-A (CsA) stressed male albino rats. METHODS Eighty-eight adult male rats weighing between 200 and 220 g were randomly distributed to into 11 groups (n=8) and different doses (100 and 200 mg/kg bwt.) of ALE and ABE were administered through oral gavages to the normal rats and 50 mg/kg/bwt/day CsA-stressed, while normal control rats was given a saline solution (p.o), and the treatment lasted for 14 days. Blood plasma, liver and brain tissues were prepared for biochemical analysis. RESULTS Neuronal [acetylcholinesterase (AChE) and butrylcholinesterase (BChE) and arginase] enzyme activities and thiobarbituric acid reactive species (TBARS) level, plasma aspartate transferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALP) activities, liver non-protein thiol (NPSH) level were analyzed. The results revealed that, the administration of CsA induced a significant increase in neuronal AChE, BChE, arginase, TBARS level, but decreased nitric oxide (NO) level. CsA also increased ALT, AST, and ALP activities in the blood plasma of CsA stress rats compared to normal control, but were significantly reversed respectively (p<0.001) upon treatment with the ALE and ABE dose-dependently. CONCLUSIONS The study revealed that ALE and ABE could prevent neuronal dysfunction and liver toxicity induced by CsA administration, however, higher dose (200 mg/kg) of the studied extracts appears to be more potent.
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Affiliation(s)
- Felix Abayomi Dada
- Science Laboratory Technology Department (Biochemistry Unit), Federal Polytechnic Ede, Ede, Osun State, Nigeria
| | - Sunday Idowu Oyeleye
- Functional Foods and Nutraceuticals Research Laboratory, Biochemistry Department, Federal University of Technology, Akure, Nigeria
- Department of Biomedical Technology, Federal University of Technology, Akure, Nigeria
| | - Stephen Adeniyi Adefegha
- Functional Foods and Nutraceuticals Research Laboratory, Biochemistry Department, Federal University of Technology, Akure, Nigeria
| | - Leye Jonathan Babatola
- Department of Chemical Sciences, Joseph Ayo Babalola University, Ikeji Arakeji, Osun State, Nigeria
| | - Adeniyi Adebayo
- Department of Chemical Sciences, Joseph Ayo Babalola University, Ikeji Arakeji, Osun State, Nigeria
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Owumi SE, Lewu DO, Arunsi UO, Oyelere AK. Luteolin attenuates doxorubicin-induced derangements of liver and kidney by reducing oxidative and inflammatory stress to suppress apoptosis. Hum Exp Toxicol 2021; 40:1656-1672. [PMID: 33827303 DOI: 10.1177/09603271211006171] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Doxorubicin is an effective anti-neoplastic agent; the reported toxicities of DOX limit its use. Luteolin is a polyphenolic phytochemical that exhibits beneficial biological effects via several mechanisms. We investigate luteolin protective effects on hepatorenal toxicity associated with doxorubicin treatment in rats. For 2 weeks, randomly assigned rat cohorts were treated as follows: control, luteolin (100 mg/kg; per os), doxorubicin alone (2mg/kg; by intraperitoneal injection), co-treated cohorts received luteolin (50 and 100 mg/kg) in addition to doxorubicin. Treatment with doxorubicin alone significantly (p < 0.05) increased biomarkers of hepatorenal toxicities in the serum. Doxorubicin also reduced relative organ weights, antioxidant capacity, and anti-inflammatory cytokine interleukine-10. Doxorubicin also increased reactive oxygen and nitrogen species, lipid peroxidation, pro-inflammatory-interleukin-1β and tumour necrosis factor-α-cytokine, and apoptotic caspases-3 and -9). Morphological damage accompanied these biochemical alterations in the rat's liver and kidney treated with doxorubicin alone. Luteolin co-treatment dose-dependently abated doxorubicin-mediated toxic responses, improved antioxidant capacity and interleukine-10 level. Luteolin reduced (p < 0.05) lipid peroxidation, caspases-3 and -9 activities and marginally improved rats' survivability. Similarly, luteolin co-treated rats exhibited improvement in hepatorenal pathological lesions observed in rats treated with doxorubicin alone. In summary, luteolin co-treatment blocked doxorubicin-mediated hepatorenal injuries linked with pro-oxidative, inflammatory, and apoptotic mechanisms. Therefore, luteolin can act as a chemoprotective agent in abating toxicities associated with doxorubicin usage and improve its therapeutic efficacy.
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Affiliation(s)
- S E Owumi
- Cancer Research and Molecular Biology Laboratories, Department of Biochemistry, 113092College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - D O Lewu
- Cancer Research and Molecular Biology Laboratories, Department of Biochemistry, 113092College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - U O Arunsi
- School of Medicine, Cancer Immunology and Biotechnology, Department of Biosciences, University of Nottingham, UK
| | - A K Oyelere
- School of Chemistry and Biochemistry, Parker H. Petit Institute for Bioengineering and Bioscience, 1372Georgia Institute of Technology, Atlanta, GA, USA
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Prša P, Karademir B, Biçim G, Mahmoud H, Dahan I, Yalçın AS, Mahajna J, Milisav I. The potential use of natural products to negate hepatic, renal and neuronal toxicity induced by cancer therapeutics. Biochem Pharmacol 2020; 173:113551. [DOI: 10.1016/j.bcp.2019.06.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 06/06/2019] [Indexed: 12/16/2022]
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Mecheri A, Benabderrahmane W, Amrani A, Boubekri N, Benayache F, Benayache S, Zama D. Hepatoprotective Effects of Algerian Crataegus oxyacantha Leaves. Recent Pat Food Nutr Agric 2018; 10:70-75. [PMID: 30058501 DOI: 10.2174/2212798410666180730095456] [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: 03/27/2018] [Revised: 07/18/2018] [Accepted: 07/19/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Hawthorn (C. oxyacantha), a common edible plant, is widely used for the preparation of a different foodstuff and is also used in traditional medicine to treat heart problems and gastrointestinal ailments. Recently, a few patents of Crataegus preparation for protective effects (prevention of cardiovascular and hepatic diseases) have been developed. OBJECTIVE The current study aimed to explore the antioxidant and hepatoprotective effects of nbutanol extract of Crataegus oxyacantha leaves in acute liver damage induced by Doxorubicin (DOX). METHODS Crataegus oxyacantha (100 mg/kg body weight) or vitamin E as a standard antioxidant (100 mg/kg body weight) were administered orally to female rats for 10 days, in the presence or absence of hepatotoxicity induced by a single intraperitoneal (i.p.) injection of DOX (15 mg/kg on the 8th day). On day 11, blood and liver samples were analyzed for biomarker levels and histopathological changes. Liver homogenates were used for determination of oxidative stress parameters that include Malondialdehyde (MDA), Glutathione (GSH) level and Glutathione Peroxidase (GPx) activity. RESULTS Treatment with n-butanol extract of C. oxyacantha leaves significantly improved the altered liver enzyme activities and oxidative stress markers. The histopathological observations confirm the results of biochemical parameters. CONCLUSION The obtained results support the traditional use of C. oxyacantha to cure gastrointestinal ailments and highlighted its possible use in the food and pharmaceutical industries as a source of natural antioxidant.
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Affiliation(s)
- Amira Mecheri
- Departement de Biologie Animale, Faculte des Sciences de la Nature et de la Vie, Universite Freres Mentouri Constantine 1, Route d'Ain El Bey, 25000 Constantine, Algeria
| | - Wassila Benabderrahmane
- Unite de Recherche Valorisation des Ressources Naturelles, Molecules Bioactives, Analyses Physicochimiques et Biologiques (VARENBIOMOL), Universite Freres Mentouri Constantine 1, Route d'Ain El Bey, 25000 Constantine, Algeria
| | - Amel Amrani
- Departement de Biologie Animale, Faculte des Sciences de la Nature et de la Vie, Universite Freres Mentouri Constantine 1, Route d'Ain El Bey, 25000 Constantine, Algeria.,Unite de Recherche Valorisation des Ressources Naturelles, Molecules Bioactives, Analyses Physicochimiques et Biologiques (VARENBIOMOL), Universite Freres Mentouri Constantine 1, Route d'Ain El Bey, 25000 Constantine, Algeria
| | - Nassima Boubekri
- Departement de Biologie Animale, Faculte des Sciences de la Nature et de la Vie, Universite Freres Mentouri Constantine 1, Route d'Ain El Bey, 25000 Constantine, Algeria.,Unite de Recherche Valorisation des Ressources Naturelles, Molecules Bioactives, Analyses Physicochimiques et Biologiques (VARENBIOMOL), Universite Freres Mentouri Constantine 1, Route d'Ain El Bey, 25000 Constantine, Algeria
| | - Fadila Benayache
- Unite de Recherche Valorisation des Ressources Naturelles, Molecules Bioactives, Analyses Physicochimiques et Biologiques (VARENBIOMOL), Universite Freres Mentouri Constantine 1, Route d'Ain El Bey, 25000 Constantine, Algeria
| | - Samir Benayache
- Unite de Recherche Valorisation des Ressources Naturelles, Molecules Bioactives, Analyses Physicochimiques et Biologiques (VARENBIOMOL), Universite Freres Mentouri Constantine 1, Route d'Ain El Bey, 25000 Constantine, Algeria
| | - Djamila Zama
- Departement de Biologie Animale, Faculte des Sciences de la Nature et de la Vie, Universite Freres Mentouri Constantine 1, Route d'Ain El Bey, 25000 Constantine, Algeria.,Unite de Recherche Valorisation des Ressources Naturelles, Molecules Bioactives, Analyses Physicochimiques et Biologiques (VARENBIOMOL), Universite Freres Mentouri Constantine 1, Route d'Ain El Bey, 25000 Constantine, Algeria
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Chen Q, Tang H, Zha Z, Yin H, Wang Y, Wang Y, Li H, Yue L. β-d-glucan from Antrodia Camphorata ameliorates LPS-induced inflammation and ROS production in human hepatocytes. Int J Biol Macromol 2017. [DOI: 10.1016/j.ijbiomac.2017.05.191] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Ganesan K, Jayachandran M, Xu B. A critical review on hepatoprotective effects of bioactive food components. Crit Rev Food Sci Nutr 2017; 58:1165-1229. [DOI: 10.1080/10408398.2016.1244154] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kumar Ganesan
- Program of Food Science and Technology, Beijing Normal University–Hong Kong Baptist University United International College, Zhuhai, China
| | - Muthukumaran Jayachandran
- Program of Food Science and Technology, Beijing Normal University–Hong Kong Baptist University United International College, Zhuhai, China
| | - Baojun Xu
- Program of Food Science and Technology, Beijing Normal University–Hong Kong Baptist University United International College, Zhuhai, China
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Mustafa HN, El Awdan SA, Hegazy GA, Abdel Jaleel GA. Prophylactic role of coenzyme Q10 and Cynara scolymus L on doxorubicin-induced toxicity in rats: Biochemical and immunohistochemical study. Indian J Pharmacol 2016; 47:649-56. [PMID: 26729958 PMCID: PMC4689020 DOI: 10.4103/0253-7613.169588] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Objective: The study aims to evaluate the protective effects of coenzyme Q10 (CoQ10) and Cynara scolymus L (CS) on doxorubicin (dox)-induced toxicity. Materials and Methods: Sixty male rats were divided into six groups. Group 1 as a control. Group 2 received dox (10 mg/kg) intraperitoneally. Group 3 received CoQ10 (200 mg/kg). Group 4 received CS (500 mg/kg). Group 5 received CoQ10 (200 mg/kg) and dox (10 mg/kg). Group 6 received CS (500 mg/kg) and dox (10 mg/kg). The rats were then evaluated biochemically and immunohistochemically. Results: Dox produced a significant deterioration of hepatic and renal functional parameters. Moreover, an upsurge of oxidative stress and nitrosative stress markers. The expression of alpha-smooth muscle actin (α-SMA) was increased and proliferating cell nuclear antigen (PCNA) expression was decreased. Administration of CoQ10 and CS resulted in a significant improvement of hepatic and renal functional parameters, and an improvement of both α-SMA and PCNA. Conclusion: It is concluded that pretreatment with CoQ10 and CS is associated with up-regulation of favorable protective enzymes and down-regulation of oxidative stress. That can be advised as a supplement to dox-treated patients.
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Affiliation(s)
- Hesham N Mustafa
- Department of Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sally A El Awdan
- Department of Pharmacology, National Research Center, Cairo, Egypt
| | - Gehan A Hegazy
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia; Department of Medical Biochemistry, National Research Center, Cairo, Egypt
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Koşar PA, Nazıroğlu M, Övey İS, Çiğ B. Synergic Effects of Doxorubicin and Melatonin on Apoptosis and Mitochondrial Oxidative Stress in MCF-7 Breast Cancer Cells: Involvement of TRPV1 Channels. J Membr Biol 2015; 249:129-40. [PMID: 26525975 DOI: 10.1007/s00232-015-9855-0] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Accepted: 10/14/2015] [Indexed: 01/21/2023]
Abstract
Transient receptor transient receptor potential vanilloid 1 (TRPV1) is a Ca(2+)-permeable channel gated by oxidative stress and capsaicin (CAP) and modulated by melatonin (MEL) and capsazepine (CPZ). A combination of doxorubicin (DOX) and MEL may offer a potential therapy for breast cancer by exerting antitumor and anti-apoptotic effects and modulating Ca(2+) influx and TRPV1 activity. We aimed to investigate the effects of MEL and DOX on the oxidative toxicity of MCF-7 human breast cancer cells, in addition to the activity of the TRPV1 channel and apoptosis. The MCF-7 cells were divided into the following six treatment groups: control, incubated with MEL (0.3 mM), incubated with 0.5 μM DOX, incubated with 1 μM DOX, incubated with MEL + 0.5 μM DOX, or incubated with MEL + 1 μM DOX. The intracellular free Ca(2+) concentration was higher in the DOX groups than in the control, and the concentration was decreased by MEL. The intracellular free Ca(2+) concentration was further increased by treatment with the TRPV1 channel activator CAP (0.01 mM), and it was decreased by the CPZ (0.1 mM). The intracellular production of reactive oxygen species, mitochondrial membrane depolarization, apoptosis level, procaspase 9 and PARP activities, and caspase 3 and caspase 9 activities were higher in the DOX and MEL groups than in the control. Apoptosis and the activity of caspase 9 were further increased in the DOX plus MEL groups. Taken together, the findings indicate that MEL supported the effects of DOX by activation of TRPV1 and apoptosis, as well as by inducing MCF-7 cell death. As the apoptosis and caspase activity of cancer cells increase because of their elevated metabolism, MEL may be useful in supporting their apoptotic capacity.
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Affiliation(s)
- Pınar Aslan Koşar
- Department of Medical Biology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Mustafa Nazıroğlu
- Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey.
- Neuroscience Research Center, Suleyman Demirel University, Isparta, Turkey.
- Department of Neuroscience, Health Science Institute, Suleyman Demirel University, Isparta, Turkey.
| | - İshak Suat Övey
- Neuroscience Research Center, Suleyman Demirel University, Isparta, Turkey
- Department of Neuroscience, Health Science Institute, Suleyman Demirel University, Isparta, Turkey
| | - Bilal Çiğ
- Neuroscience Research Center, Suleyman Demirel University, Isparta, Turkey
- Department of Neuroscience, Health Science Institute, Suleyman Demirel University, Isparta, Turkey
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Li S, Tan HY, Wang N, Zhang ZJ, Lao L, Wong CW, Feng Y. The Role of Oxidative Stress and Antioxidants in Liver Diseases. Int J Mol Sci 2015; 16:26087-124. [PMID: 26540040 PMCID: PMC4661801 DOI: 10.3390/ijms161125942] [Citation(s) in RCA: 921] [Impact Index Per Article: 102.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 09/20/2015] [Accepted: 10/19/2015] [Indexed: 12/15/2022] Open
Abstract
A complex antioxidant system has been developed in mammals to relieve oxidative stress. However, excessive reactive species derived from oxygen and nitrogen may still lead to oxidative damage to tissue and organs. Oxidative stress has been considered as a conjoint pathological mechanism, and it contributes to initiation and progression of liver injury. A lot of risk factors, including alcohol, drugs, environmental pollutants and irradiation, may induce oxidative stress in liver, which in turn results in severe liver diseases, such as alcoholic liver disease and non-alcoholic steatohepatitis. Application of antioxidants signifies a rational curative strategy to prevent and cure liver diseases involving oxidative stress. Although conclusions drawn from clinical studies remain uncertain, animal studies have revealed the promising in vivo therapeutic effect of antioxidants on liver diseases. Natural antioxidants contained in edible or medicinal plants often possess strong antioxidant and free radical scavenging abilities as well as anti-inflammatory action, which are also supposed to be the basis of other bioactivities and health benefits. In this review, PubMed was extensively searched for literature research. The keywords for searching oxidative stress were free radicals, reactive oxygen, nitrogen species, anti-oxidative therapy, Chinese medicines, natural products, antioxidants and liver diseases. The literature, including ours, with studies on oxidative stress and anti-oxidative therapy in liver diseases were the focus. Various factors that cause oxidative stress in liver and effects of antioxidants in the prevention and treatment of liver diseases were summarized, questioned, and discussed.
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Affiliation(s)
- Sha Li
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Hor-Yue Tan
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Ning Wang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Zhang-Jin Zhang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Lixing Lao
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Chi-Woon Wong
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Yibin Feng
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
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New benzimidazole acridine derivative induces human colon cancer cell apoptosis in vitro via the ROS-JNK signaling pathway. Acta Pharmacol Sin 2015; 36:1074-84. [PMID: 26235743 DOI: 10.1038/aps.2015.44] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 04/20/2015] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the mechanisms underlying anticancer action of the benzimidazole acridine derivative N-{(1H-benzo[d]imidazol-2-yl)methyl}-2-butylacridin-9-amine(8m) against human colon cancer cells in vitro. METHODS Human colon cancer cell lines SW480 and HCT116 were incubated in the presence of 8m, and then the cell proliferation and apoptosis were measured. The expression of apoptotic/signaling genes and proteins was detected using RT-PCR and Western blotting. ROS generation and mitochondrial membrane depolarization were visualized with fluorescence microscopy. RESULTS 8m dose-dependently suppressed the proliferation of SW480 and HCT116 cells with IC50 values of 6.77 and 3.33 μmol/L, respectively. 8m induced apoptosis of HCT116 cells, accompanied by down-regulation of Bcl-2, up-regulation of death receptor-5 (DR5), truncation of Bid, cleavage of PARP, and activation of caspases (including caspase-8 and caspase-9 as well as the downstream caspases-3 and caspase-7). Moreover, 8m selectively activated JNK and p38 without affecting ERK in HCT116 cells. Knockout of JNK1, but not p38, attenuated 8m-induced apoptosis. In addition, 8m induced ROS production and mitochondrial membrane depolarization in HCT116 cells. Pretreatment with the antioxidants N-acetyl cysteine or glutathione attenuated 8m-induced apoptosis and JNK activation in HCT116 cells. CONCLUSION The new benzimidazole acridine derivative, 8m exerts anticancer activity against human colon cancer cells in vitro by inducing both intrinsic and extrinsic apoptosis pathways via the ROS-JNK1 pathway.
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Abstract
The amino acids histidine and n-acetylcysteine have many biological activities such as antioxidant effect. The present study investigated the effects of histidine and n-acetylcysteine on the heart lesions induced by doxorubicin (DOX) in rats. Forty-eight male Wistar rats were divided into two major groups treated intraperitoneally (i.p.) with normal saline and 4 mg/kg of DOX, respectively. Each group was further divided into four subgroups that were treated with separate and combined i.p. injections of histidine and n-acetylcysteine (NAC) at a same dose of 40 mg/kg. Electrocardiography (ECG) was recorded using lead II. The heart lesions were evaluated by light microscopy. Serum levels of creatine phosphokinase and lactate dehydrogenase and heart tissue malondialdehyde levels were measured. Histidine and especially NAC at a same dose of 40 mg/kg recovered ECG changes, improved heart lesions and prevented biochemical changes induced by DOX. Co-administration of histidine and NAC showed better responses when compared with them used alone. The results of the present study showed protective effects for histidine and NAC on the heart. Reduction in free radical-induced toxic effects may be involved in cardioprotective properties of histidine and NAC.
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14
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Dirks-Naylor AJ, Kouzi SA, Bero JD, Tran NTK, Yang S, Mabolo R. Effects of acute doxorubicin treatment on hepatic proteome lysine acetylation status and the apoptotic environment. World J Biol Chem 2014; 5:377-386. [PMID: 25225604 PMCID: PMC4160530 DOI: 10.4331/wjbc.v5.i3.377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 04/02/2014] [Accepted: 06/27/2014] [Indexed: 02/05/2023] Open
Abstract
AIM: To determine if doxorubicin (Dox) alters hepatic proteome acetylation status and if acetylation status was associated with an apoptotic environment.
METHODS: Doxorubicin (20 mg/kg; Sigma, Saint Louis, MO; n = 8) or NaCl (0.9%; n = 7) was administered as an intraperitoneal injection to male F344 rats, 6-wk of age. Once animals were treated with Dox or saline, all animals were fasted until sacrifice 24 h later.
RESULTS: Dox treatment decreased proteome lysine acetylation likely due to a decrease in histone acetyltransferase activity. Proteome deacetylation may likely not be associated with a proapoptotic environment. Dox did not increase caspase-9, -8, or -3 activation nor poly (adenosine diphosphate-ribose) polymerase-1 cleavage. Dox did stimulate caspase-12 activation, however, it likely did not play a role in apoptosis induction.
CONCLUSION: Early effects of Dox involve hepatic proteome lysine deacetylation and caspase-12 activation under these experimental conditions.
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15
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Duan X, Liu D, Xing X, Li J, Zhao S, Nie H, Zhang Y, Sun G, Li B. Tert-butylhydroquinone as a phenolic activator of Nrf2 antagonizes arsenic-induced oxidative cytotoxicity but promotes arsenic methylation and detoxication in human hepatocyte cell line. Biol Trace Elem Res 2014; 160:294-302. [PMID: 24970285 DOI: 10.1007/s12011-014-0042-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 06/09/2014] [Indexed: 01/23/2023]
Abstract
Oxidative stress plays crucial roles in exerting a variety of damages upon arsenic exposure. Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) is a master transcriptional regulator protecting cells and tissues from oxidative injuries. The objective of this study was to test whether tert-butylhydroquinone (tBHQ), a well-known synthetic Nrf2 inducer, could protect human hepatocytes against arsenic-induced cytotoxicity and oxidative injuries. Our results showed that 5 and 25 μmol/l tBHQ pretreatment suppressed the arsenic-induced hepatocellular cytotoxicity, reactive oxygen species generation, and hepatic lipid peroxidation, while relieved the arsenic-induced disturbances of intracellular glutathione balance. In addition, we also observed that tBHQ treatment promoted the arsenic biomethylation process and upregulated Nrf2-regulated downstream heme oxygenase-1 and NADPH: quinine oxidoreductase 1 mRNA expressions. Collectively, we suspected that Nrf2 signaling pathway may be involved in the protective effects of tBHQ against arsenic invasion in hepatocytes. These data suggest that phenolic Nrf2 inducers, such as tBHQ, represent novel therapeutic or dietary candidates for the population at high risk of arsenic poisoning.
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Affiliation(s)
- Xiaoxu Duan
- Department of Occupational and Environmental Health, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, 92 North 2nd Road, Heping District, Shenyang, 110001, China
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16
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Wang B, Ma Y, Kong X, Ding X, Gu H, Chu T, Ying W. NAD(+) administration decreases doxorubicin-induced liver damage of mice by enhancing antioxidation capacity and decreasing DNA damage. Chem Biol Interact 2014; 212:65-71. [PMID: 24491677 DOI: 10.1016/j.cbi.2014.01.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Revised: 01/16/2014] [Accepted: 01/24/2014] [Indexed: 10/25/2022]
Abstract
One of the major obstacles for cancer treatment is the toxic side effects of anti-cancer drugs. Doxorubicin (DOX) is one of the most widely used anti-cancer drugs, which produces significant toxic side effects on the heart and such organs as the liver. Because NAD(+) can decrease cellular or tissue damage under multiple conditions, we hypothesized that NAD(+) administration may decrease DOX-induced hepatotoxicity. In this study we tested this hypothesis by using a mouse model, showing that NAD(+) administration can significantly attenuate DOX-induced increase in serum glutamate oxaloacetate transaminase activity and decrease in liver weight. The NAD(+) administration also attenuated the DOX-induced increases in the levels of double-strand DNA (dsDNA) damage, TUNEL signals, and active caspase-3. Furthermore, our data has suggested that the NAD(+) administration could produce protective effects at least partially by restoring the antioxidation capacity of the liver, because NAD(+) administration can attenuate the decreases in both the GSH levels and the glutathione reductase activity of the DOX-treated liver, which could play a significant role in the DOX-induced hepatotoxicity. This finding has provided the first evidence indicating that NAD(+) is capable of increasing the antioxidation capacity of tissues. Collectively, our study has found that NAD(+) can significantly decrease DOX-induced liver damage at least partially by enhancing antioxidation capacity and decreasing dsDNA damage. Because it can also selectively decrease tumor cell survival, NAD(+) may have significant merits over antioxidants for applying jointly with DOX to decrease the toxic side effects of DOX.
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Affiliation(s)
- Ban Wang
- Med-X Research Institute and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, PR China
| | - Yingxin Ma
- Med-X Research Institute and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, PR China
| | - Xiaoni Kong
- Med-X Research Institute and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, PR China
| | - Xianting Ding
- Med-X Research Institute and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, PR China
| | - Hongchen Gu
- Med-X Research Institute and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, PR China
| | - Tianqing Chu
- Respiratory Department, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, PR China.
| | - Weihai Ying
- Med-X Research Institute and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, PR China.
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17
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Uygur R, Aktas C, Tulubas F, Uygur E, Kanter M, Erboga M, Caglar V, Topcu B, Ozen OA. Protective effects of fish omega-3 fatty acids on doxorubicin-induced testicular apoptosis and oxidative damage in rats. Andrologia 2013; 46:917-26. [DOI: 10.1111/and.12173] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/19/2013] [Indexed: 11/29/2022] Open
Affiliation(s)
- R. Uygur
- Faculty of Medicine; Department of Anatomy; Namik Kemal University; Tekirdag Turkey
| | - C. Aktas
- Faculty of Medicine; Department of Histology and Embryology; Namik Kemal University; Tekirdag Turkey
| | - F. Tulubas
- Faculty of Medicine; Department of Biochemistry; Namik Kemal University; Tekirdag Turkey
| | - E. Uygur
- Vocational School of Health Services; Namik Kemal University; Tekirdag Turkey
| | - M. Kanter
- Faculty of Medicine; Department of Histology and Embryology; Istanbul Medeniyet University; Istanbul Turkey
| | - M. Erboga
- Faculty of Medicine; Department of Histology and Embryology; Namik Kemal University; Tekirdag Turkey
| | - V. Caglar
- Faculty of Medicine; Department of Anatomy; Namik Kemal University; Tekirdag Turkey
| | - B. Topcu
- Faculty of Medicine; Department of Biostatistics; Namik Kemal University; Tekirdag Turkey
| | - O. A. Ozen
- Faculty of Medicine; Department of Anatomy; Namik Kemal University; Tekirdag Turkey
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18
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Lee IC, Kim SH, Baek HS, Moon C, Bae CS, Kim SH, Yun WK, Nam KH, Kim HC, Kim JC. Melatonin improves adriamycin-induced hepatic oxidative damage in rats. Mol Cell Toxicol 2013. [DOI: 10.1007/s13273-013-0033-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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19
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Singh M, Odeniyi DT, Apostolov EO, Savenka A, Fite T, Wangila GW, Walker RB, Basnakian AG. Protective effect of zinc-N-acetylcysteine on the rat kidney during cold storage. Am J Physiol Renal Physiol 2013; 305:F1022-30. [PMID: 23825076 DOI: 10.1152/ajprenal.00532.2012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Cold storage of kidneys before transplantation is problematic because of the limited survival time of the allografts. In this study, zinc-N-acetylcysteine (ZnNAC) was shown to be a potent endonuclease inhibitor and antioxidant, and it was tested as a potential additive to a cold storage solution for kidney preservation. Exposure of normal rat kidney NRK-52E cells to ZnNAC resulted in zinc delivery to the cells as determined by TFL-Zn fluorophore and partial protection of the cells against injury by cold storage in University of Wisconsin solution (UWS) as measured by propidium iodide assay. Ex vivo, rat kidneys demonstrated time- and temperature-dependent DNA fragmentation as assessed by TUNEL assay, indicating irreversible cell death. DNA fragmentation was faster in the medulla than in the cortex, and tubules were affected more than glomeruli. Perfusion of rat kidneys with cold ZnNAC solution in UWS significantly inhibited cell death both in the cortex and medulla at concentrations of 0.3-30 mM compared with UWS alone, with a maximum effect at 1-10 mM ZnNAC. Cold storage of the kidney significantly increased quantities of cleaved caspase-3 and endonuclease G (EndoG) in the tissue, which were abolished by 10 mM ZnNAC, indicating its ability to suppress both caspase-dependent and -independent cell death. Therefore, supplementation of UWS with ZnNAC can decrease DNA fragmentation and protect kidney allografts from cell death due to cold storage.
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Affiliation(s)
- Mandeep Singh
- Dept. of Pharmacology and Toxicology, Univ. of Arkansas for Medical Sciences, 4301 W. Markham, no. 638, Little Rock, AR 72205.
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20
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Xu SW, Yao HD, Zhang J, Zhang ZW, Wang JT, Zhang JL, Jiang ZH. The oxidative damage and disbalance of calcium homeostasis in brain of chicken induced by selenium deficiency. Biol Trace Elem Res 2013. [PMID: 23188678 DOI: 10.1007/s12011-012-9552-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Dietary selenium (Se) deficiency can influence the function of the brain. Our objective was to investigate the effects of Se deficiency on oxidative damage and calcium (Ca) homeostasis in brain of chicken. In the present study, 1-day-old chickens were fed either a commercial diet (as control group) with 0.15 mg/kg Se or a Se-deficient diet (as L group) with 0.033 mg/kg Se for 75 days. Then, brain injury biomarkers were examined, including histological analysis, ultrastructure assay, and apoptosis assay. We also examined the effect of Se deficiency on the Se-containing antioxidative enzyme glutathione peroxidase (GSH-Px), the level of glutathione (GSH), and the Ca homeostasis in brain of chicken. The results showed that the levels of Se and GSH and activity of GSH-Px are seriously reduced by 33.8-96 % (P < 0.001), 24.51-27.84 % (P < 0.001), and 20.70-64.24 % (P < 0.01), respectively. In the present study, we also perform histological analysis and ultrastructure assay and find that Se deficiency caused disorganized histological structure, damage to the mitochondria, fusion of nuclear membrane and nucleus shrinkage, higher apoptosis rate (P < 0.001), and increase of Ca homeostasis (P < 0.05 or P < 0.01 or P < 0.001) in the brain of chicken. In conclusion, the results demonstrated that Se deficiency induced oxidative damage and disbalance of Ca homeostasis in the brain of chicken. Similar to mammals, chickens brain is also extremely susceptible to oxidative damage and selenium deficiency.
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Affiliation(s)
- Shi-Wen Xu
- Department of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China.
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21
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Brum G, Carbone T, Still E, Correia V, Szulak K, Calianese D, Best C, Cammarata G, Higgins K, Ji F, Di W, Wan Y. N-acetylcysteine potentiates doxorubicin-induced ATM and p53 activation in ovarian cancer cells. Int J Oncol 2012; 42:211-8. [PMID: 23128467 PMCID: PMC3583638 DOI: 10.3892/ijo.2012.1680] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Accepted: 09/07/2012] [Indexed: 11/27/2022] Open
Abstract
Doxorubicin has been used clinically to treat various types of cancer, and yet the molecular mode of actions of doxorubicin remains to be fully unraveled. In this study, we investigated the effect of doxorubicin on cultured ovarian cancer cells (CaOV3). MTT assay data showed that doxorubicin inhibits cell proliferation in a time- and dose-dependent manner. Phagokinetic cell motility assay data indicated that doxorubicin inhibits both basal level and EGF-induced cell migration in CaOV3 cells. Confocal microscopic data revealed that doxorubicin induces reorganization of cytoskeletal proteins including actin, tubulin and vimentin. Doxorubicin induces phosphorylation of p53 at Ser15 and 20, acetylation of p53 and ATM activation. Doxorubicin also induces phosphorylation of histone H2AX at Ser139. Interestingly, doxorubicin also inhibits mTOR activity, measured by phosphorylation of S6 ribosomal protein. Pretreatment of CaOV3 cells with antioxidant N-acetylcysteine (NAC), but not pyrrolidine dithiocarbamate (PDTC) potentiates doxorubicin-induced phosphorylation of p53 and ATM. Collectively, we conclude that doxorubicin induces ATM/p53 activation leading to reorganization of cytoskeletal networks, inhibition of mTOR activity, and inhibition of cell proliferation and migration. Our data also suggest that removal of oxidants by antioxidants such as NAC may enhance the efficacy of doxorubicin in vivo.
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Affiliation(s)
- Gabriella Brum
- Department of Biology, Providence College, Providence, RI 02918, USA
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22
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Ozcelik D, Uzun H, Nazıroglu M. N-acetylcysteine attenuates copper overload-induced oxidative injury in brain of rat. Biol Trace Elem Res 2012; 147:292-8. [PMID: 22246790 DOI: 10.1007/s12011-012-9320-1] [Citation(s) in RCA: 207] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Accepted: 01/02/2012] [Indexed: 11/26/2022]
Abstract
Copper is an integral part of many important enzymes involved in a number of vital biological processes. Even though it is essential to life, at elevated tissue concentrations, copper can become toxic to cells. Recent studies have reported oxidative damage due to copper in various tissues. Considering the vulnerability of the brain to oxidative stress, this study was undertaken to explore possible beneficial antioxidant effects of N-acetylcysteine on oxidative stress induced by copper overload in brain tissue of rats. Thirty-two Wistar rats were equally divided into four groups. The first group was used as control. The second, third, and fourth groups were given 1 g/L copper in their drinking water for 1 month. At the end of this period, the group 2 rats were sacrificed. During the next 2 weeks, the rats in group 3 were injected intraperitoneally with physiological saline and those in group 4 with 20 mg/kg intraperitoneal injections of N-acetylcysteine. In group 2 the lipid peroxidation and nitric oxide levels were increased in the brain cortex while the activities of superoxide dismutase and catalase and the concentration of glutathione were decreased. In rats treated with N-acetylcysteine, lipid peroxidation decreased and the activities of antioxidant enzyme improved in the brain cortex. In conclusion, treatment with N-acetylcysteine modulated the antioxidant redox system and reduced brain oxidative stress induced by copper.
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Affiliation(s)
- Dervis Ozcelik
- Department of Biophysics, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey.
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23
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Effects of Selenium on Calcium Signaling and Apoptosis in Rat Dorsal Root Ganglion Neurons Induced by Oxidative Stress. Neurochem Res 2012; 37:1631-8. [DOI: 10.1007/s11064-012-0758-5] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 03/08/2012] [Accepted: 03/16/2012] [Indexed: 01/12/2023]
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24
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Viñas G, Puig T, Porta R. [Oxidative stress in patients with cancer: two sides of the same coin]. Med Clin (Barc) 2012; 139:171-5. [PMID: 22266084 DOI: 10.1016/j.medcli.2011.11.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 11/07/2011] [Accepted: 11/17/2011] [Indexed: 11/16/2022]
Abstract
Oxidative stress is a biochemical condition of imbalance between free radicals and antioxidant defence mechanisms. Cancer is an inducing oxidative stress disease. Metabolic changes in neoplastic cells, tumor infiltration by inflammatory cells, malnutrition and specific cancer treatment contribute to high levels of oxidative stress in cancer patients. The toxic effects of oxidative stress on normal cells could be counteracted by use of antioxidants, even though they may abrogate the harmful effects of oxidative stress on tumor cells and prevent apoptosis. Thus, currently, there is not enough scientific evidence to support the use of antioxidants in patients with cancer.
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Affiliation(s)
- Gemma Viñas
- Servicio de Oncología Médica, Instituto Catalán de Oncología, Girona, España
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25
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The role of reactive oxygen species in WP 631-induced death of human ovarian cancer cells: A comparison with the effect of doxorubicin. Toxicol In Vitro 2011; 25:1712-20. [DOI: 10.1016/j.tiv.2011.08.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 08/17/2011] [Accepted: 08/18/2011] [Indexed: 12/30/2022]
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