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Vaishampayan P, Lee Y. Redox-active vitamin C suppresses human osteosarcoma growth by triggering intracellular ROS-iron-calcium signaling crosstalk and mitochondrial dysfunction. Redox Biol 2024; 75:103288. [PMID: 39083898 DOI: 10.1016/j.redox.2024.103288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Accepted: 07/26/2024] [Indexed: 08/02/2024] Open
Abstract
Pharmacological vitamin C (VC) has gained attention for its pro-oxidant characteristics and selective ability to induce cancer cell death. However, defining its role in cancer has been challenging due to its complex redox properties. In this study, using a human osteosarcoma (OS) model, we show that the redox-active property of VC is critical for inducing non-apoptotic cancer cell death via intracellular reactive oxygen species (ROS)-iron-calcium crosstalk and mitochondrial dysfunction. In both 2D and 3D OS cell culture models, only the oxidizable form of VC demonstrated potent dose-dependent cytotoxicity, while non-oxidizable and oxidized VC derivatives had minimal effects. Live-cell imaging showed that only oxidizable VC caused a surge in cytotoxic ROS, dependent on iron rather than copper. Inhibitors of ferroptosis, a form of iron-dependent cell death, along with classical apoptosis inhibitors, were unable to completely counteract the cytotoxic effects induced by VC. Further pharmacological and genetic inhibition analyses showed that VC triggers calcium release through inositol 1,4,5-trisphosphate receptors (IP3Rs), leading to mitochondrial ROS production and eventual cell death. RNA sequencing revealed down-regulation of genes involved in the mitochondrial electron transport chain and oxidative phosphorylation upon pharmacological VC treatment. Consistently, high-dose VC reduced mitochondrial membrane potential, oxidative phosphorylation, and ATP levels, with ATP reconstitution rescuing VC-induced cytotoxicity. In vivo OS xenograft studies demonstrated reduced tumor growth with high-dose VC administration, concomitant with the altered expression of mitochondrial ATP synthase (MT-ATP). These findings emphasize VC's potential clinical utility in osteosarcoma treatment by inducing mitochondrial metabolic dysfunction through a vicious intracellular ROS-iron-calcium cycle.
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Affiliation(s)
- Prajakta Vaishampayan
- Department of Translational Medicine and Physiology, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, 99202, USA
| | - Yool Lee
- Department of Translational Medicine and Physiology, Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, 99202, USA; Department of Integrative Physiology and Neuroscience, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164, USA; Sleep and Performance Research Center, Washington State University, Spokane, WA, 99202, USA; Steve Gleason Institute for Neuroscience, Washington State University, Spokane, WA, 99202, USA.
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2
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Kozarski M, Klaus A, Špirović-Trifunović B, Miletić S, Lazić V, Žižak Ž, Vunduk J. Bioprospecting of Selected Species of Polypore Fungi from the Western Balkans. Molecules 2024; 29:314. [PMID: 38257227 PMCID: PMC10819588 DOI: 10.3390/molecules29020314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/27/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Growing mushrooms means meeting challenges while aiming for sustainability and circularity. Wherever the producer is located, commercial strains are the same originating from several producers. Customized strains adapted to local conditions are urgently needed. Before introducing new species to the strain development pipeline, the chemical characterization and biological activity of wild ones need to be assessed. Accordingly, the mycoceutical potential of five polypore mushroom species from Serbia was evaluated including: secondary metabolite composition, oxidative damage prevention, anti-tyrosinase, and anti-angiotensin converting enzyme (ACE). The phenolic pattern was comparable in all samples, but the amounts of specific chemicals varied. Hydroxybenzoic acids were the primary components. All samples had varying quantities of ascorbic acid, carotene, and lycopene, and showed a pronounced inhibition of lipid peroxidation (LPx) and ability to scavenge HO•. Extracts were more potent tyrosinase inhibitors but unsuccessful when faced with ACE. Fomitopsis pinicola had the strongest anti-tumor efficacy while Ganoderma lucidum demonstrated strong selectivity in anti-tumor effect in comparison to normal cells. The evaluated species provided a solid foundation for commercial development while keeping local ecology in mind.
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Affiliation(s)
- Maja Kozarski
- Institute for Food Technology and Biochemistry, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (M.K.); (A.K.); (V.L.)
| | - Anita Klaus
- Institute for Food Technology and Biochemistry, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (M.K.); (A.K.); (V.L.)
| | - Bojana Špirović-Trifunović
- Institute for Phytomedicine, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia;
| | - Srdjan Miletić
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia;
| | - Vesna Lazić
- Institute for Food Technology and Biochemistry, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (M.K.); (A.K.); (V.L.)
| | - Željko Žižak
- Institute of Oncology and Radiology of Serbia, Paterova 14, 11000 Belgrade, Serbia;
| | - Jovana Vunduk
- Institute of General and Physical Chemistry, Studentski trg 12/V, 11158 Belgrade, Serbia
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3
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González-Arostegui LG, Cerón JJ, Gök G, Neselioglu S, Erel O, Rubio CP. Validation of assays for measurement of oxidant compounds in saliva of pigs: Thiobarbituric acid reactive substances (TBARS), carbonyl, and reactive oxygen species (ROS). Res Vet Sci 2023; 165:105069. [PMID: 37951004 DOI: 10.1016/j.rvsc.2023.105069] [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: 06/28/2023] [Revised: 10/06/2023] [Accepted: 10/14/2023] [Indexed: 11/13/2023]
Abstract
Thiobarbituric acid reactive substances (TBARS), carbonyls and reactive oxygen species (ROS) are oxidant compounds that can provide useful information on the oxidative status. Pigs can be affected by oxidative stress in different situations including physiological conditions such as lactation and also in different diseases, and the measurement of these three analytes in saliva could be potentially useful as biomarkers of the redox status in this species. Assays for the measurement of TBARS and carbonyls by spectrophotometry and ROS by luminol-based chemiluminescence in pigs' saliva were analytically validated and were applied in saliva of pigs after an in vitro incubation with different doses of ascorbic acid (AA). All the assays showed a satisfactory analytical precision and accuracy. The 240 h-incubation of saliva samples with 60 mM of AA induced to an increased TBARS and carbonyls production. TBARS, carbonyls and ROS can be estimated in saliva of pigs by the assays validated in this report. In addition, these assays can detect changes in the concentration of these analytes associated to incubation of saliva samples with AA.
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Affiliation(s)
- L G González-Arostegui
- Interlab-UMU, Regional Campus of International Excellence "Mare Nostrum" University of Murcia, Murcia 30100, Spain
| | - J J Cerón
- Interlab-UMU, Regional Campus of International Excellence "Mare Nostrum" University of Murcia, Murcia 30100, Spain
| | - G Gök
- Deparment of Biochemistry, Faculty of Medicine, Ankara Yildrim Bezayit University, Ankara City Hospital, Ankara 06800, Turkey
| | - S Neselioglu
- Deparment of Biochemistry, Faculty of Medicine, Ankara Yildrim Bezayit University, Ankara City Hospital, Ankara 06800, Turkey
| | - O Erel
- Deparment of Biochemistry, Faculty of Medicine, Ankara Yildrim Bezayit University, Ankara City Hospital, Ankara 06800, Turkey
| | - C P Rubio
- Interlab-UMU, Regional Campus of International Excellence "Mare Nostrum" University of Murcia, Murcia 30100, Spain; Department of Animal and Food Science, School of Veterinary Science, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona 08193, Spain.
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4
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Wang N, Ali A, Liu Z, Chi H, Lv Z, Zhao X, Zhang Z, Hao H, Zhang Y, Rahman FU. Monofunctional dimetallic Ru(η6-arene) complexes inhibit NOTCH1 signaling pathway and synergistically enhance anticancer effect in combination with cisplatin or vitamin C. Eur J Med Chem 2023; 258:115536. [PMID: 37295260 DOI: 10.1016/j.ejmech.2023.115536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/16/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023]
Abstract
ONS donor ligands L1-L4 were utilized in the preparation of monofunctional dimetallic Ru(η6-arene) complexes (C1-C4). These ONS donor ligand based novel tricoordinated Ru(II) complexes bearing η6-arene co-ligand were prepared for the first time. The current methodology resulted in excellent isolated yields and these complexes were characterized in detail by different spectroscopic and spectrometric techniques. The structures of C1-C2 and C4 were characterized in solid state by single crystal X-ray analysis. The in vitro anticancer analyses showed these novel complexes suppressed the growth of breast (MCF-7), liver (HepG2) and lung (A549) cancer cells. C2 suppressed the growth of these cells in dose-dependent manner revealed form the MTT and crystal violet cell viability assays. Moreover, C2 was observed the most potent complex that was used further in detailed mechanistic analyses in cancer cells. C2 showed good cytotoxic activity at 10 μM dose level as compared to cisplatin or oxaliplatin in these cancer cells. We observed morphological changes in cancer cells upon treatment with C2. Moreover, C2 suppressed the invasion and migration ability of cancer cells. C2 induced cellular senescence to retard cell growth and suppressed the formation of cancer stem cells. Importantly, C2 showed synergistic anticancer effect in combination with cisplatin and Vitamin C to further inhibit cell growth which suggested the potential role of C2 in cancer therapy. Mechanistically, C2 inhibited NOTCH1 dependent signaling pathway to suppress cancer cell invasion, migration and cancer stem cells formation. Thus, these data suggested potential role of C2 in cancer therapy by targeting NOTCH1-dependent signaling to suppress tumorigenesis. The results obtained in this study for these novel monofunctional dimetallic Ru(η6-arene) complexes showed their high anticancer potency and this study will pave to further cytotoxicity exploration on this class of complexes.
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Affiliation(s)
- Na Wang
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, People's Republic of China
| | - Amjad Ali
- Institute of Integrative Biosciences, CECOS University of IT and Emerging Sciences, Peshawar, KPK, Pakistan; Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, People's Republic of China
| | - Zongwei Liu
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, People's Republic of China
| | - Huiqin Chi
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, People's Republic of China
| | - Zhimin Lv
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, People's Republic of China
| | - Xing Zhao
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, People's Republic of China
| | - Zeqing Zhang
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, People's Republic of China
| | - Huifang Hao
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, People's Republic of China; School of Life Sciences, Inner Mongolia University, Hohhot, 010021, People's Republic of China
| | - Yongmin Zhang
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, People's Republic of China; Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, UMR 8232, 4 Place Jussieu, 75005, Paris, France.
| | - Faiz-Ur Rahman
- Inner Mongolia University Research Center for Glycochemistry of Characteristic Medicinal Resources, Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, People's Republic of China.
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5
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Roy AC, Prasad A, Priya K, Das P, Singh S, Ghosh C, Ghosh I. Anticancer effect of antioxidant-rich methanolic extract of Rauvolfia serpentina (L.) Benth. ex Kurz leaves in HepG2 and HeLa cells: A mechanistic insight. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2023. [DOI: 10.1016/j.bcab.2023.102674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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6
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Kim JH, Hwang S, Lee JH, Im SS, Son J. Vitamin C Suppresses Pancreatic Carcinogenesis through the Inhibition of Both Glucose Metabolism and Wnt Signaling. Int J Mol Sci 2022; 23:ijms232012249. [PMID: 36293106 PMCID: PMC9603812 DOI: 10.3390/ijms232012249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/11/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
Abstract
Cumulative studies have indicated that high-dose vitamin C has antitumor effects against a variety of cancers. However, the molecular mechanisms underlying these inhibitory effects against tumorigenesis and metastasis, particularly in relation to pancreatic cancer, are unclear. Here, we report that vitamin C at high concentrations impairs the growth and survival of pancreatic ductal adenocarcinoma (PDAC) cells by inhibiting glucose metabolism. Vitamin C was also found to trigger apoptosis in a caspase-independent manner. We further demonstrate that it suppresses the invasion and metastasis of PDAC cells by inhibiting the Wnt/β-catenin-mediated epithelial-mesenchymal transition (EMT). Taken together, our results suggest that vitamin C has therapeutic effects against pancreatic cancer.
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Affiliation(s)
- Ji Hye Kim
- Department of Biomedical Sciences, Asan Medical Center, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Sein Hwang
- Department of Biomedical Sciences, Asan Medical Center, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Ji-Hye Lee
- Department of Biomedical Sciences, Asan Medical Center, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Se Seul Im
- Department of Biomedical Sciences, Asan Medical Center, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Jaekyoung Son
- Department of Biomedical Sciences, Asan Medical Center, AMIST, University of Ulsan College of Medicine, Seoul 05505, Korea
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7
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Yi YY, Zhang SB, Chen H, Xu HW, Wang SJ. Ascorbic acid promotes nucleus pulposus cell regeneration by regulating proliferation during intervertebral disc degeneration. J Nutr Biochem 2022; 108:109099. [PMID: 35779794 DOI: 10.1016/j.jnutbio.2022.109099] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 03/07/2022] [Accepted: 06/08/2022] [Indexed: 11/18/2022]
Abstract
Intervertebral disc degeneration (IVDD) affects human health. Ascorbic acid (AA) deficiency is a major factor that contributes to the development of degenerative disc disease in the elderly. Here, as a novel treatment with promising applications, we demonstrate that AA treatment inhibited senescence and maintained the proliferation of nucleus pulposus (NP) cells during long-term culture. AA-treated NP cells and acupuncture-treated rat models exhibited degenerative resistance during cell passaging and AA increased cell proliferation and decreased time-related senescence. Interestingly, Kyoto Encyclopedia of Genes and Genomes pathway mapping revealed five top enriched pathways and four pathways were associated with the aldehyde dehydrogenase (ALDH) enzyme family, especially proliferation-related ALDH1A3. Collectively, our findings demonstrate that ALDH1A3 expression was increased by AA treatment, which counteracted degeneration in NP cells over time and rejuvenated maintenance of proliferation in NP cells, which has a promising therapeutic implications in IVDD.
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Affiliation(s)
- Yu-Yang Yi
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Shu-Bao Zhang
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Hao Chen
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Hao-Wei Xu
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Shan-Jin Wang
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China; Department of orthopedic, East Hospital, Ji'an Hospital, Jinggangshan University School of Medicine, Jiangxi, China.
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8
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Shen L, Li J, Liu Q, Das M, Song W, Zhang X, Tiruthani K, Dorosheva O, Hu H, Lai SK, Liu R, Huang L. Nano-trapping CXCL13 reduces regulatory B cells in tumor microenvironment and inhibits tumor growth. J Control Release 2022; 343:303-313. [DOI: 10.1016/j.jconrel.2022.01.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 01/11/2023]
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9
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Kim S, Lee H, Lim JW, Kim H. Astaxanthin induces NADPH oxidase activation and receptor‑interacting protein kinase 1‑mediated necroptosis in gastric cancer AGS cells. Mol Med Rep 2021; 24:837. [PMID: 34608499 PMCID: PMC8503742 DOI: 10.3892/mmr.2021.12477] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/22/2021] [Indexed: 12/13/2022] Open
Abstract
Astaxanthin (ASX), a red-colored xanthophyll carotenoid, functions as an antioxidant or pro-oxidant. ASX displays anticancer effects by reducing or increasing oxidative stress. Reactive oxygen species (ROS) promote cancer cell death by necroptosis mediated by receptor-interacting protein kinase 1 (RIP1) and RIP3. NADPH oxidase is a major source of ROS that may promote necroptosis in some cancer cells. The present study aimed to investigate whether ASX induces necroptosis by increasing NADPH oxidase activity and ROS levels in gastric cancer AGS cells. AGS cells were treated with ASX with or without ML171 (NADPH oxidase 1 specific inhibitor), N-acetyl cysteine (NAC; antioxidant), z-VAD (pan-caspase inhibitor) or Necrostatin-1 (Nec-1; a specific inhibitor of RIP1). As a result, ASX increased NADPH oxidase activity, ROS levels and cell death, and these effects were suppressed by ML171 and NAC. Furthermore, ASX induced RIP1 and RIP3 activation, ultimately inducing mixed lineage kinase domain-like protein (MLKL) activation, lactate dehydrogenase (LDH) release and cell death. Moreover, the ASX-induced decrease in cell viability was reversed by Nec-1 treatment and RIP1 siRNA transfection, but not by z-VAD. ASX did not increase the ratio of apoptotic Bax/anti-apoptotic Bcl-2, the number of Annexin V-positive cells, or caspase-9 activation, which are apoptosis indices. In conclusion, ASX induced necroptotic cell death by increasing NADPH oxidase activity, ROS levels, LDH release and the number of propidium iodide-positive cells, as well as activating necroptosis-regulating proteins, RIP1/RIP3/MLKL, in gastric cancer AGS cells. The results of this study demonstrated the necroptotic effect of ASX on gastric cancer AGS cells, which required NADPH oxidase activation and RIP1/RIP3/MLKL signaling in vitro.
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Affiliation(s)
- Sori Kim
- Department of Food and Nutrition, Brain Korea 21 FOUR Project, College of Human Ecology, Yonsei University, Seoul 03722, Republic of Korea
| | - Hanbit Lee
- Department of Food and Nutrition, Brain Korea 21 FOUR Project, College of Human Ecology, Yonsei University, Seoul 03722, Republic of Korea
| | - Joo Weon Lim
- Department of Food and Nutrition, Brain Korea 21 FOUR Project, College of Human Ecology, Yonsei University, Seoul 03722, Republic of Korea
| | - Hyeyoung Kim
- Department of Food and Nutrition, Brain Korea 21 FOUR Project, College of Human Ecology, Yonsei University, Seoul 03722, Republic of Korea
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Kalbkhani F, Pirnejad A, Sam S, Sam MR. The Safe Soluble Compound Dehydroascorbic Acid Inhibits Various Upstream and Downstream Effectors of PI3K and KRAS Signaling Pathways in Undruggable PIK3CA/KRAS-Mutant Colorectal Cancer Stem-Like Cells. Nutr Cancer 2020; 73:2654-2664. [PMID: 33283545 DOI: 10.1080/01635581.2020.1856387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Efforts to develop effective drugs targeting PI3K and KRAS signaling pathways in PIK3CA/KRAS-mutant colorectal cancer stem cells (CRCSCs) remain challenging. Finding safe compounds that can easily enter CRCSCs with the ability to target metastasis-driver gene CXCR4 and pluripotency network genes as key upstream and downstream effectors of both PI3K and KRAS signaling pathways may provide promising results. PIK3CA/KRAS-mutant CRCSCs display high expression of glucose transporters (GLUTs) on their cell membrane and a glycolytic phenotype providing an opportunity to deliver antiglycolytic compounds into these cells via the GLUTs. CRC patients with low levels of vitamin C in their plasma show a shorter survival suggesting the ability of this vitamin at the physiologic levels for caspase-3 activation and apoptosis in CRCSCs. Vitamin C in an oxidized form (L-dehydroascorbic acid; L-DHA) with antiglycolytic activity can be taken up into CRC cells via the GLUTs. This may provide selective toxicity on CRCSCs and affect CXCR4 and stemness markers genes expression in these cells. To this end, we treated PIK3CA/KRAS-mutant LS174T cells with high glycolytic activity as an attractive model for CRCSCs with L-DHA equal to the pharmacological levels of vitamin C in human plasma, after which cell numbers, metabolic activity, proliferation-rate, CXCR4 and pluripotency network genes expression, caspase-3 activity with apoptosis were evaluated. 48 h post-treatment with 100- to 1000 µM L-DHA, cell numbers were decreased and measured to be 70-47% control. L-DHA with selective toxicity on LS174T cells diminished metabolic activity and cell proliferation-rate to 1.4-0.8 (Control OD = 1.5) and 92-54.5% respectively with no toxicity on PBMCs. L-DHA decreased CXCR4, Bmi-1, Sox-2 and Oct-4 expression to 45%, 85%, 45% and 48% control respectively followed by caspase-3 reactivation by 2.5 to 4.9-fold increases and induction of apoptosis ranging from 0.5% to 58.3% for 100- to 1000 µM L-DHA. According to our data, CRC stem-like cells were highly sensitive to L-DHA in in-vitro. L-DHA selectively targeted LS174T cells and successfully reactivated caspase-3 and apoptosis in these cells. CXCR4, stemness marker genes and metabolic activity appear to be promising targets of L-DHA. Our results may provide a new therapeutic approach to target selectively GLUT-overexpressing PIK3CA/KRAS-mutant CRCSCs using L-DHA with no toxicity on normal cells.
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Affiliation(s)
- Fahimeh Kalbkhani
- Department of Cellular and Molecular Biotechnology, Institute of Biotechnology, Urmia University, Urmia, Iran
| | - Ali Pirnejad
- Department of Pathology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Sohrab Sam
- Department of Biotechnology, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
| | - Mohammad Reza Sam
- Department of Cellular and Molecular Biotechnology, Institute of Biotechnology, Urmia University, Urmia, Iran.,Department of Pathology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.,Department of Biotechnology, Artemia and Aquaculture Research Institute, Urmia University, Urmia, Iran
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Scarano A, Sbarbati A, Amore R, Iorio EL, Ferraro G, Amuso D. A New Treatment for Local Adiposity with Ascorbic Acid and Ascorbyl-Palmitate Solution: Clinical and Histological Study. Aesthetic Plast Surg 2020; 44:1604-1612. [PMID: 32803279 PMCID: PMC7508743 DOI: 10.1007/s00266-020-01865-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 06/30/2020] [Indexed: 12/24/2022]
Abstract
Background Localized adiposity (AL) is the accumulation of subcutaneous adipose tissue, placed in definite anatomic areas, building up an alteration of the body silhouette. The aim of the present clinical and histological study is to assess the effectiveness of an injectable solution containing sodium salt of ascorbic acid 0.24% and surfactant agent at 0.020% ascorbyl-palmitate (SAP) for treating local adiposity. Methods Eighty healthy female adult patients were selected, suffering from local adiposity in the abdominal region. The patients underwent a cycle of 6 sessions, with biweekly treatments, without the addition of any active ingredient. Direct infiltration of pharmacologically active SAP solutions into the adipose tissue with a long needle, very similar to the needles used for spinal anesthesia, was performed. This procedure is quick and painless (does not require any anesthesia) with moderate infiltration speed. Results All the patients treated showed good results with good satisfaction of the circumferential reductions. Before treatment: Waist (cm) 78.8 ± 10.6 and hip 93.6 ± 9.0 with WHR 0.84 ± 0.07. After treatment: Waist (cm) 70.8 ± 9.6 and hip 92.6 ± 8.0 with WHR 0.76 ± 0.06. Indeed, signs of adipocyte apoptosis were observed in subcutaneous skin after injection of SAP. Conclusion The results showed in the present study suggest that the SAP utilized induces apoptosis of adipocytes and could be of use as a safe and effective method with which to eliminate subcutaneous abdominal fat. Level of Evidence IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
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12
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Li Z, He P, Luo G, Shi X, Yuan G, Zhang B, Seidl C, Gewies A, Wang Y, Zou Y, Long Y, Yue D, Zhang X. Increased Tumoral Microenvironmental pH Improves Cytotoxic Effect of Pharmacologic Ascorbic Acid in Castration-Resistant Prostate Cancer Cells. Front Pharmacol 2020; 11:570939. [PMID: 33071784 PMCID: PMC7538777 DOI: 10.3389/fphar.2020.570939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 08/31/2020] [Indexed: 01/23/2023] Open
Abstract
Background The anticancer potential of pharmacologic ascorbic acid (AA) has been detected in a number of cancer cells. However, in vivo study suggested a strongly reduced cytotoxic activity of AA. It was known that pH could be a critical influencing factor for multiple anticancer treatments. In this study, we explored the influence of pH on the cytotoxicity of ascorbic acid. We employed castration-resistant prostate cancer (CRPC) cell lines PC3 and DU145 to observe the therapeutic effect of AA on PCa cells that were cultured with different pH in vitro. We also analyzed the influence of pH and extracellular oxidation on cytotoxicity of AA in cancer cells using reactive oxygen species (ROS) assay, cellular uptake of AA, and NADPH assay. Male BALB/c nude mice bearing prostate carcinoma xenografts (PC3 or DU145) were used to assess treatment response to AA with or without bicarbonate in vivo. The cellular uptake of AA in PCa xenografts was detected using positron emission tomography (PET). Small animal PET/CT scans were performed on mice after the administration of 6-deoxy-6-[18F] fluoro-L-ascorbic acid (18F-DFA). Results Our in vitro studies demonstrate that acidic pH attenuates the cytotoxic activity of pharmacologic ascorbic acid by inhibiting AA uptake in PCa cells. Additionally, we found that the cancer cell-selective toxicity of AA depends on ROS. In vivo, combination of AA and bicarbonate could provide a significant better therapeutic outcome in comparison with controls or AA single treated mice. 18F-DFA PET imaging illustrated that the treatment with NaHCO3 could significantly increase the AA uptake in tumor. Conclusions The alkalinity of tumor microenvironment plays an important role in anticancer efficiency of AA in CRPC. 18F-DFA PET/CT imaging could predict the therapeutic response of PCa animal model through illustration of tumoral uptake of AA. 18F-DFA might be a potential PET tracer in clinical diagnosis and treatment for CRPC.
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Affiliation(s)
- Zhoulei Li
- Department of Nuclear Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Peng He
- Department of Nuclear Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ganhua Luo
- Department of Nuclear Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xinchong Shi
- Department of Nuclear Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Gang Yuan
- Department of Geriatrics, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Bing Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Christof Seidl
- Department of Nuclear Medicine, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Andreas Gewies
- Institute of Molecular Toxicology and Pharmacology, German Research Center for Environmental Health, Munich, Germany
| | - Yue Wang
- Department of Nuclear Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yuan Zou
- Sichuan Key Laboratory of Medical Imaging & Ultrasound Medical Center, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yali Long
- Department of Nuclear Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Dianchao Yue
- Department of Nuclear Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xiangsong Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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Panner Selvam MK, Agarwal A, Henkel R, Finelli R, Robert KA, Iovine C, Baskaran S. The effect of oxidative and reductive stress on semen parameters and functions of physiologically normal human spermatozoa. Free Radic Biol Med 2020; 152:375-385. [PMID: 32165282 DOI: 10.1016/j.freeradbiomed.2020.03.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/02/2020] [Accepted: 03/07/2020] [Indexed: 12/15/2022]
Abstract
Both oxidative stress (OS) and reductive stress (RS) are the two extreme facets of redox imbalance that can have deleterious effects on sperm function. However, there is a lack of information on the physiological range of oxidation-reduction potential (ORP). The aim of this study was to investigate the effect of OS and RS on functions and associated molecular changes in normal spermatozoa in order to establish the physiological range of ORP. In the current study, total and progressive motility remained unchanged in spermatozoa exposed to ORP values 0.33 and 0.72 mV/106 sperm/mL. However, a significant (P < 0.05) decline in total and progressive motility were observed at ORP values 1.48, 2.75, -11.24, -9.76 and -9.35 mV/106 sperm/mL. Sperm vitality also decreased significantly (P < 0.0001) at 2.75, -11.24 and -9.76 mV/106 sperm/mL. Spermatozoa exposed to ORP levels 2.75 and -11.24 mV/106 sperm/mL showed a significant (P < 0.01) decrease in mitochondrial membrane potential. Intracellular reactive oxygen species (iROS) production increased (P < 0.05) in spermatozoa exposed to ORP levels of 1.48 and 2.75 mV/106 sperm/mL, while iROS decreased (P < 0.05) at ORP levels -9.76 and -11.24 mV/106 sperm/mL. No significant change in sperm DNA fragmentation was noted in sperm exposed to OS/RS and the values were below the reference range (<19.25%). Western blot analysis revealed decreased expression of CV-ATPA, CIII-UQCRC2 and CIV-MTCO1 proteins at 60 and 120 min (P < 0.05) in both OS and RS conditions. This is the first study to report physiological range of ORP (between -9.76 and 1.48 mV/106 sperm/mL) and to elucidate the role of altered expression of oxidative phosphorylation (OXPHOS) complexes proteins in mediating detrimental effects of oxidative and reductive conditions on sperm functions. A decreased expression of OXPHOS proteins and associated mitochondrial dysfunction contributes to decreased sperm motility and vitality under oxidative and reductive stress.
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Affiliation(s)
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA; Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
| | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Kathy Amy Robert
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Concetta Iovine
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA; Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
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14
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Choi YK, Kang JI, Han S, Kim YR, Jo J, Kang YW, Choo DR, Hyun JW, Koh YS, Yoo ES, Kang HK. L-Ascorbic Acid Inhibits Breast Cancer Growth by Inducing IRE/JNK/CHOP-Related Endoplasmic Reticulum Stress-Mediated p62/SQSTM1 Accumulation in the Nucleus. Nutrients 2020; 12:nu12051351. [PMID: 32397306 PMCID: PMC7284633 DOI: 10.3390/nu12051351] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/24/2020] [Accepted: 05/02/2020] [Indexed: 12/11/2022] Open
Abstract
Anticancer effects of L-ascorbic acid (Vitamin C, L-AA) have been reported in various types of cancers. L-AA intake reduces breast cancer recurrence and mortality; however, the role of L-AA in the treatment of breast cancer remains poorly understood. In this study, we investigated the effect and mechanism action of L-AA on breast cancer growth. L-AA inhibited the growth of breast cancer cells by inducing apoptotic cell death at the evaluated treatment concentrations without affecting normal cells. Moreover, L-AA induces autophagosome formation via regulation of mammalian target of rapamycin (mTOR), Beclin1, and autophagy-related genes (ATGs) and increased autophagic flux. Notably, we observed that L-AA increased p62/SQSTM1 (sequestosome 1) protein levels. Accumulation of p62 protein in cancer cells in response to stress has been reported, but its role in cancer regulation remains controversial. Here, we demonstrated that L-AA-induced p62 accumulation is related to L-AA-induced breast cancer growth inhibition. Furthermore, L-AA induced endoplasmic reticulum (ER) stress via the IRE–JNK–CHOP (inositol-requiring endonuclease–c-Jun N-terminal kinase–C/EBP homologous protein) signaling pathways, which increased the nuclear levels of p62/SQSTM1. These findings provide evidence that L-AA-induced ER stress could be crucial for p62 accumulation-dependent cell death, and L-AA can be useful in breast cancer treatment.
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Affiliation(s)
- Youn Kyung Choi
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Jung-Il Kang
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Sanghoon Han
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Young Ree Kim
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Jaemin Jo
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Yong Woo Kang
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Do Ryeon Choo
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Jin Won Hyun
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University; 102 Jejudaehakno, Jeju 63243, Korea
| | - Young Sang Koh
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University; 102 Jejudaehakno, Jeju 63243, Korea
| | - Eun-Sook Yoo
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University; 102 Jejudaehakno, Jeju 63243, Korea
| | - Hee-Kyoung Kang
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University; 102 Jejudaehakno, Jeju 63243, Korea
- Correspondence: ; Tel.:+82-10-6214-5464
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15
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Zhang J, Deng Y, Khoo BL. Fasting to enhance Cancer treatment in models: the next steps. J Biomed Sci 2020; 27:58. [PMID: 32370764 PMCID: PMC7201989 DOI: 10.1186/s12929-020-00651-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 04/22/2020] [Indexed: 02/06/2023] Open
Abstract
Short-term fasting (STF) is a technique to reduce nutrient intake for a specific period. Since metabolism plays a pivotal role in tumor progression, it can be hypothesized that STF can improve the efficacy of chemotherapy. Recent studies have demonstrated the efficacy of STF in cell and animal tumor models. However, large-scale clinical trials must be conducted to verify the safety and effectiveness of these diets. In this review, we re-examine the concept of how metabolism affects pathophysiological pathways. Next, we provided a comprehensive discussion of the specific mechanisms of STF on tumor progression, derived through studies carried out with tumor models. There are currently at least four active clinical trials on fasting and cancer treatment. Based on these studies, we highlight the potential caveats of fasting in clinical applications, including the onset of metabolic syndrome and other metabolic complications during chemotherapy, with a particular focus on the regulation of the epithelial to mesenchymal pathway and cancer heterogeneity. We further discuss the advantages and disadvantages of the current state-of-art tumor models for assessing the impact of STF on cancer treatment. Finally, we explored upcoming fasting strategies that could complement existing chemotherapy and immunotherapy strategies to enable personalized medicine. Overall, these studies have the potential for breakthroughs in cancer management.
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Affiliation(s)
- Jing Zhang
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong
| | - Yanlin Deng
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong
| | - Bee Luan Khoo
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong.
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Romana-Souza B, Silva-Xavier W, Monte-Alto-Costa A. Topical application of a commercially available formulation of vitamin C stabilized by vitamin E and ferulic acid reduces tissue viability and protein synthesis in ex vivo human normal skin. J Cosmet Dermatol 2020; 19:2965-2973. [PMID: 32307865 DOI: 10.1111/jocd.13413] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/22/2020] [Accepted: 03/23/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND Aqueous formulations of vitamin C stabilized by vitamin E and ferulic acid at low pH effectively protect skin against reactive oxygen species-induced damage. However, the effects of these formulations on human skin have not clearly been described. The aim of this study was to investigate whether topical application of two commercially available formulations of vitamin C alter human skin using an ex vivo model. METHODS Human skin explants were topically treated on alternate days with commercially available formulation 1 (15% vitamin C) at 100% (without dilution), 50%, or 10% diluted in saline or formulation 2 (20% vitamin C) at 100% (without dilution), 50%, or 10% diluted in saline. Only saline was applied to control skin explants. RESULTS Topical formulation 1 at 100%, 50%, or 10%, but not formulation 2 at 100%, 50%, or 10%, reduced the viability of ex vivo human skin compared to the control after 7, 10, and 13 days. In addition, compared to the control, ex vivo human skin treated with formulation 1 at 50%, but not formulation 2 at 50%, also decreased mRNA levels of actin and ribosomal protein L10 and gene expression of extracellular matrix components after 10 days. Furthermore, after 10 days, topical application of formulation 1 at 50%, but not formulation 2 at 50%, decreased the protein expression of proliferating cellular nuclear antigen, lysyl oxidase, β-actin, and glyceraldehyde-3-phosphate dehydrogenase compared to the control. CONCLUSIONS Topical formulation 1, but not formulation 2, may reduce the viability of and protein synthesis in ex vivo human skin. Those effects might be due to action of vehicle of formulation 1 on ex vivo human skin.
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Affiliation(s)
- Bruna Romana-Souza
- Laboratory of Tissue Repair, Department of Histology and Embryology, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Welker Silva-Xavier
- Laboratory of Tissue Repair, Department of Histology and Embryology, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Andréa Monte-Alto-Costa
- Laboratory of Tissue Repair, Department of Histology and Embryology, State University of Rio de Janeiro, Rio de Janeiro, Brazil
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Ghavami G, Sardari S. Synergistic Effect of Vitamin C with Cisplatin for Inhibiting Proliferation of Gastric Cancer Cells. IRANIAN BIOMEDICAL JOURNAL 2019. [PMID: 31677606 PMCID: PMC6984712 DOI: 10.29252/ibj.24.2.119] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Background: Ascorbic acid, known as vitamin C, has been used in combination with a number of cytotoxic agents in vitro and in vivo with contradictory results on its effectiveness. It is believed that vitamin C can sensitize different cancer cells to common therapy strategies such as chemotherapy and radiotherapy. During current research, the combination effect of vitamin C with cisplatin was evaluated against gastric cancer cells. Methods: MTT-based proliferation assay, CI method, and flow cytometry technique were employed for the assessment of cell cycle and determination of apoptosis/necrosis on the AGS cell line. Results: Co-treatment of gastric cancer cells with vitamin C in its IC50 dose in addition to cisplatin in both IC50 (10 µg/ml) and five times less (2 µg/ml) doses could increase the cytotoxicity effect of cisplatin in a synergistic manner. Moreover, the pointed co-treatment approach could induce the cell count in sub-G0 phase while reducing it in the G0/G1, G2/M, and S phases. Further findings showed that the combined dose of vitamin C and cisplatin could increase the percentage of apoptotic and necrotic cells in comparison with a single dose of cisplatin. Conclusion: This study introduces a possible approach for the treatment of gastric cancer with more potency and less amount of administered cisplatin to induce toxicity.
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Affiliation(s)
- Ghazaleh Ghavami
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Soroush Sardari
- Drug Design and Bioinformatics Unit, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
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18
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New potential biomarker for stratification of patients for pharmacological vitamin C in adjuvant settings of cancer therapy. Redox Biol 2019; 28:101357. [PMID: 31678721 PMCID: PMC6920102 DOI: 10.1016/j.redox.2019.101357] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/17/2019] [Accepted: 10/21/2019] [Indexed: 12/31/2022] Open
Abstract
Our graphical review expands the analysis of cancer vulnerabilities for high dose vitamin C, based on several facts, illustrating the cytotoxic potential of the ascorbate free radical (AFR) via impairment of mitochondrial respiration and the mechanisms of its elimination in mammals by the membrane-bound NADH:cytochrome b5 oxidoreductase 3 (Cyb5R3). We propose that vitamin C can function in “protective mode” or “destructive mode” affecting cellular homeostasis, depending on the intracellular “steady-state” concentration of AFR and differential expression/activity of Cyb5R3 in cancerous and normal cells. Thus, a specific anti-cancer effect can be achieved at high doses of vitamin C therapy. The review is intended for a wide audience of readers – from students to specialists in the field. The ascorbate radical could impair mitochondrial respiration via cytochrome c reduction. The ascorbate radical could mediate the imbalance of the coenzyme Q “pool” in cancer cells. The selective cytotoxicity of vitamin C in cancer could be mediated by Cyb5R3/VDAC1. Low/normal doses of vitamin C act in a “protective mode” for normal/cancer cells. High doses of vitamin C act in a “destructive mode” for cancer cells only.
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19
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Chen XY, Chen Y, Qu CJ, Pan ZH, Qin Y, Zhang X, Liu WJ, Li DF, Zheng Q. Vitamin C induces human melanoma A375 cell apoptosis via Bax- and Bcl-2-mediated mitochondrial pathways. Oncol Lett 2019; 18:3880-3886. [PMID: 31516599 DOI: 10.3892/ol.2019.10686] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 06/13/2019] [Indexed: 12/19/2022] Open
Abstract
Melanoma is the most malignant type of skin cancer and is resistant to numerous chemotherapeutic and radiotherapy-based treatment approaches due to the activation of rapid and reversible pro-survival signaling pathways. As a result, patients will often present with a poor prognosis. Therefore, novel preventive methods and treatments are urgently required for patients with melanoma. Vitamin C (also known as L-ascorbic acid) is a water-soluble vitamin that is widely used as a dietary additive and has been demonstrated to exhibit anti-cancer properties. In the present study, the effects of vitamin C in human melanoma A375 cells, and the mechanisms underlying these effects were investigated. Vitamin C potently suppressed human melanoma A375 cell proliferation by inducing apoptosis in A375 cells. Induction of apoptosis was related to caspase-9 and caspase-3 activation and the mitochondrial membrane potential of A375 cells significantly decreased in the presence of vitamin C. Furthermore, vitamin C induced apoptosis in A375 cells by activating the Bax- and Bcl-2-mediated mitochondrial pathway. These results indicate that vitamin C may be a potentially useful clinical anti-tumor drug for treating patients with melanoma.
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Affiliation(s)
- Xiao-Yu Chen
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Ying Chen
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Chuan-Jun Qu
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Zhao-Hai Pan
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Yao Qin
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Xin Zhang
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Wen-Jing Liu
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - De-Fang Li
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Qiusheng Zheng
- School of Integrated Traditional Chinese and Western Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China.,Key Laboratory of Xinjiang Endemic Phytomedicine Resources of Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, Xinjiang 832002, P.R. China
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20
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Anti-bacterial susceptibility profiling of Weissella confusa DD_A7 against the multidrug-resistant ESBL-positive E. coli. Microb Pathog 2019; 128:119-130. [DOI: 10.1016/j.micpath.2018.12.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 11/19/2018] [Accepted: 12/28/2018] [Indexed: 01/27/2023]
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Nanostructured Dihydroartemisinin Plus Epirubicin Liposomes Enhance Treatment Efficacy of Breast Cancer by Inducing Autophagy and Apoptosis. NANOMATERIALS 2018; 8:nano8100804. [PMID: 30304783 PMCID: PMC6215314 DOI: 10.3390/nano8100804] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/04/2018] [Accepted: 10/05/2018] [Indexed: 02/07/2023]
Abstract
The heterogeneity of breast cancer and the development of drug resistance are the relapse reasons of disease after chemotherapy. To address this issue, a combined therapeutic strategy was developed by building the nanostructured dihydroartemisinin plus epirubicin liposomes. Investigations were performed on human breast cancer cells in vitro and xenografts in nude mice. The results indicated that dihydroartemisinin could significantly enhance the efficacy of epirubicin in killing different breast cancer cells in vitro and in vivo. We found that the combined use of dihydroartemisinin with epirubicin could efficiently inhibit the activity of Bcl-2, facilitate release of Beclin 1, and further activate Bax. Besides, Bax activated apoptosis which led to the type I programmed death of breast cancer cells while Beclin 1 initiated the excessive autophagy that resulted in the type II programmed death of breast cancer cells. In addition, the nanostructured dihydroartemisinin plus epirubicin liposomes prolonged circulation of drugs, and were beneficial for simultaneously delivering drugs into breast cancer tissues. Hence, the nanostructured dihydroartemisinin plus epirubicin liposomes could provide a new therapeutic strategy for treatment of breast cancer.
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Yang Y, Lu X, Liu Q, Dai Y, Zhu X, Wen Y, Xu J, Lu Y, Zhao D, Chen X, Li N. Palmitoyl ascorbate and doxorubicin co-encapsulated liposome for synergistic anticancer therapy. Eur J Pharm Sci 2017; 105:219-229. [PMID: 28526602 DOI: 10.1016/j.ejps.2017.05.038] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 04/22/2017] [Accepted: 05/16/2017] [Indexed: 01/12/2023]
Abstract
Combination therapy with two drugs and nanoparticle-based drug delivery systems are widely applied to reduce the adverse effects of traditional treatment by chemotherapeutic drugs. Palmitoyl ascorbate (PA) as a lipophilic derivative of ascorbic acid shows the advantages in cancer treatment. The aim of the study was to prepare a doxorubicin (DOX) and PA co-loaded liposome to synergistically treat tumor and effectively alleviate the toxicity caused by DOX. The effects were evaluated by in vitro and in vivo studies. The liposomes (weight ratio of DOX to PA=1:20, DOX1/PA20-LPs) exhibited the strongest synergistic effects, combination index was 0.38, 0.56, and 0.05 in MCF-7, HepG2, and A549 cells, respectively. In vitro cellular uptake study, the intercellular concentration of DOX in DOX1/PA20-LPs was 2.5-fold greater than DOX loaded liposome, and DOX1/PA20-LPs was taken in not only by macropinocytosis, but also by clathrin-mediated endocytosis. Intracellular distribution experiment showed that DOX1/PA20-LPs efficiently concentrated in the nucleus. In vivo studies indicated that co-encapsulated liposome not only showed the strongest antitumor ability by tumor growth suppression, but also significantly enhanced the safety by the change of body weight and reduced damages to other tissues (evidenced by histopathology study). These results indicated that DOX and PA co-delivery liposome successfully enhanced the anticancer efficacy and mitigated the toxicities of DOX, which displayed potential for clinical application with enhanced safety and efficacy.
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Affiliation(s)
- Yue Yang
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, Jiangsu Province 211198, China
| | - Xiaoyu Lu
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, Jiangsu Province 211198, China
| | - Qi Liu
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, Jiangsu Province 211198, China
| | - Yu Dai
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, Jiangsu Province 211198, China
| | - Xiaojie Zhu
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, Jiangsu Province 211198, China
| | - Yanli Wen
- Department of Pharmacy, Tianjin Medical University Cancer Institute & Hospital, Tianjin 300060, China
| | - Jiaqiu Xu
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, Jiangsu Province 210009, China
| | - Yang Lu
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, Jiangsu Province 211198, China
| | - Di Zhao
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, Jiangsu Province 211198, China
| | - Xijing Chen
- Clinical Pharmacokinetics Laboratory, China Pharmaceutical University, Nanjing, Jiangsu Province 211198, China.
| | - Ning Li
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, Jiangsu Province 210009, China.
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Zubair H, Azim S, Ahmad A, Khan MA, Patel GK, Singh S, Singh AP. Cancer Chemoprevention by Phytochemicals: Nature's Healing Touch. Molecules 2017; 22:molecules22030395. [PMID: 28273819 PMCID: PMC6155418 DOI: 10.3390/molecules22030395] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 02/27/2017] [Accepted: 02/28/2017] [Indexed: 12/28/2022] Open
Abstract
Phytochemicals are an important part of traditional medicine and have been investigated in detail for possible inclusion in modern medicine as well. These compounds often serve as the backbone for the synthesis of novel therapeutic agents. For many years, phytochemicals have demonstrated encouraging activity against various human cancer models in pre-clinical assays. Here, we discuss select phytochemicals—curcumin, epigallocatechin-3-gallate (EGCG), resveratrol, plumbagin and honokiol—in the context of their reported effects on the processes of inflammation and oxidative stress, which play a key role in tumorigenesis. We also discuss the emerging evidence on modulation of tumor microenvironment by these phytochemicals which can possibly define their cancer-specific action. Finally, we provide recent updates on how low bioavailability, a major concern with phytochemicals, is being circumvented and the general efficacy being improved, by synthesis of novel chemical analogs and nanoformulations.
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Affiliation(s)
- Haseeb Zubair
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA.
| | - Shafquat Azim
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA.
| | - Aamir Ahmad
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA.
| | - Mohammad Aslam Khan
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA.
| | - Girijesh Kumar Patel
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA.
| | - Seema Singh
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA.
- Department of Molecular Biology and Biochemistry, College of Medicine, University of South Alabama, Mobile, AL 36688, USA.
| | - Ajay Pratap Singh
- Department of Oncologic Sciences, Mitchell Cancer Institute, University of South Alabama, Mobile, AL 36604, USA.
- Department of Molecular Biology and Biochemistry, College of Medicine, University of South Alabama, Mobile, AL 36688, USA.
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