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Levy MA, Tian J, Gandelman M, Cheng H, Tsapekos M, Crego SR, Maddela R, Sinnott R. A Multivitamin Mixture Protects against Oxidative Stress-Mediated Telomere Shortening. J Diet Suppl 2023; 21:53-70. [PMID: 36847305 DOI: 10.1080/19390211.2023.2179153] [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] [Indexed: 03/01/2023]
Abstract
Telomeres are nucleotide repeat sequences located at the end of chromosomes that protect them from degradation and maintain chromosomal stability. Telomeres shorten with each cell division; hence telomere length is associated with aging and longevity. Numerous lifestyle factors have been identified that impact the rate of telomere shortening; high vitamin consumption has been associated with longer telomere length, whereas oxidative stress is associated with telomere shortening. In this paper, we sought to determine if a multivitamin mixture containing both vitamins and a blend of polyphenolic compounds, could reduce telomere shortening consequent to an oxidative stress (10 uM H2O2 for 8 weeks) in a primary fibroblast cell culture model. Under conditions of oxidative stress, the median and 20th percentile telomere length were significantly greater (p < 0.05), and the percentage of critically short telomeres (<3000 bp) was significantly less (p < 0.05) in cells treated with the multivitamin mixture at 4, 15 and 60 ug/ml compared to control (0 ug/ml). Median and 20th percentile telomere shortening rate was also reduced under the same conditions (p < 0.05). Taken together, these findings demonstrate that the multivitamin mixture protects against oxidative stress-mediated telomere shortening in cell culture, findings which may have implications in human health.
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Affiliation(s)
- Mark A Levy
- Department of Research and Development, USANA Health Science, Inc., Salt Lake City, Utah, USA
| | - Junqiang Tian
- Department of Research and Development, USANA Health Science, Inc., Salt Lake City, Utah, USA
| | - Mandi Gandelman
- Department of Neurology, University of Utah, Salt Lake City, Utah, USA
| | - Haojie Cheng
- Department of Research and Development, USANA Health Science, Inc., Salt Lake City, Utah, USA
| | | | | | - Rolando Maddela
- Department of Research and Development, USANA Health Science, Inc., Salt Lake City, Utah, USA
| | - Robert Sinnott
- Department of Research and Development, USANA Health Science, Inc., Salt Lake City, Utah, USA
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Silva Fernandes A, Hollanda Véras J, Silva LS, Puga SC, Luiz Cardoso Bailão EF, de Oliveira MG, Cardoso CG, Carneiro CC, Costa Santos SD, Chen-Chen L. Pedunculagin isolated from Plinia cauliflora seeds exhibits genotoxic, antigenotoxic and cytotoxic effects in bacteria and human lymphocytes. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2022; 85:353-363. [PMID: 34875975 DOI: 10.1080/15287394.2021.2009947] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Pedunculagin (PD), an ellagitannin found in different plant species, possesses several pharmaceutical properties, including antitumor, antioxidant, gastroprotective, hepatoprotective, and anti-inflammatory properties. However, the effects of PD alone on DNA remain to be determined. The aim of this study was to investigate the potential cytotoxic, genotoxic, and antigenotoxic activities of PD isolated from Plinia cauliflora seeds using in silico and in vitro assays. To elucidate the biological activities of PD, in silico tools indicative of antioxidant, antineoplastic, and chemopreventive activities of PD were used. Subsequently, the mutagenic/antimutagenic effects of PD were later assessed using bacteria with the Ames test, and the cytotoxic, genotoxic, and antigenotoxic effects utilizing human lymphocytes as evidenced by trypan blue exclusion test and CometChip assay. In silico analysis indicated potential antioxidant, chemopreventive, free radical scavenger, and cytostatic activities of PD. In the Ames test, PD was found to be not mutagenic; however, this plant component protected DNA against damage-mediated by mutagens 4-nitroquinoline-1-oxide and sodium azide. Regarding human lymphocytes, PD alone was cytotoxic and genotoxic; however, it also reduced DNA damage induced by doxorubicin at co- and post-treatment. In conclusion, PD showed genotoxic, antigenotoxic and cytotoxic effects in human lymphocytes and antimutagenic effects in bacteria.
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Affiliation(s)
- Amanda Silva Fernandes
- Laboratory of Radiobiology and Mutagenesis, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Jefferson Hollanda Véras
- Laboratory of Radiobiology and Mutagenesis, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Luana Santos Silva
- Laboratory of Radiobiology and Mutagenesis, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Sara Cristina Puga
- Laboratory of Radiobiology and Mutagenesis, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | | | | | - Clever Gomes Cardoso
- Laboratory of Radiobiology and Mutagenesis, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Cristiene Costa Carneiro
- Laboratory of Radiobiology and Mutagenesis, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | | | - Lee Chen-Chen
- Laboratory of Radiobiology and Mutagenesis, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
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Rocha JD, da Silva Ferreira J, Vieira Silva JG, Silva Fernandes A, Hollanda Véras J, Madureira de Almeida L, Magalhães Teles A, Luiz Borges L, Chen-Chen L, Luiz Cardoso Bailão EF. In vitro hematotoxicity of Vernonanthura polyanthes leaf aqueous extract and its fractions. Drug Chem Toxicol 2020; 45:1026-1034. [PMID: 32757868 DOI: 10.1080/01480545.2020.1802481] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Vernonanthura polyanthes, popularly known as 'assa-peixe', is widely used in Brazil for therapeutic purpose mainly to treat respiratory tract problems. However, few studies investigated its chemical safety. In this way, we first obtained the V. polyanthes leaf aqueous extract (VpLAE) and three fractions (aqueous; n-butanol, n-BF; and ethyl acetate), and we chemically characterized this material. Then, the cytogenotoxic potential of the VpLAE and its fractions was investigated against human erythrocytes and lymphocytes using Trypan blue exclusion test of cell viability and CometChip. The phytochemical screening of V. polyanthes leaf revealed the presence of total phenolic compounds, flavonoids, tannins, coumarins, terpenic compounds, and cardioactive heterosides. n-BF presented the highest total phenolic, flavonoids, and tannins contents and, consequently, the highest antioxidant activity, according to the DPPH free radical scavenging method. Although the VpLAE and its fractions did not cause death of erythrocytes, the cells acquired an echinocytic form. Regarding lymphocytes, VpLAE and its fractions presented cytotoxicity and genotoxicity. When VpLAE or its fractions were co-treated with doxorubicin (DXR), a recognized cytotoxic drug, we observed an enhancement of DXR cytotoxicity against lymphocytes, but the DXR genotoxicity decreased around 15%. Since the VpLAE and its fractions increased the DXR cytotoxicity and decreased its genotoxicity, further studies should be conducted for the development of an adjuvant drug from this extract to reduce the side effects of chemotherapy. Moreover, the indiscriminate use of 'assa-peixe' by local people should be discouraged.
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Affiliation(s)
- Jamira Dias Rocha
- Laboratório de Biotecnologia, Universidade Estadual de Goiás, Câmpus Henrique Santillo, Anápolis, Brazil
| | - Janaina da Silva Ferreira
- Laboratório de Biotecnologia, Universidade Estadual de Goiás, Câmpus Henrique Santillo, Anápolis, Brazil
| | | | - Amanda Silva Fernandes
- Departmento de Genética, Laboratório de Radiobiologia e Mutagênese, Instituto de Ciências Biológicas I, Universidade Federal de Goiás, Goiânia, Brazil
| | - Jefferson Hollanda Véras
- Departmento de Genética, Laboratório de Radiobiologia e Mutagênese, Instituto de Ciências Biológicas I, Universidade Federal de Goiás, Goiânia, Brazil
| | | | - Aristônio Magalhães Teles
- Departamento de Botânica, Instituto de Ciências Biológicas I, Universidade Federal de Goiás, Goiânia, Brazil
| | - Leonardo Luiz Borges
- Laboratório de Biotecnologia, Universidade Estadual de Goiás, Câmpus Henrique Santillo, Anápolis, Brazil
| | - Lee Chen-Chen
- Departmento de Genética, Laboratório de Radiobiologia e Mutagênese, Instituto de Ciências Biológicas I, Universidade Federal de Goiás, Goiânia, Brazil
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Bhuyan T, Dutta D, Bhattacharjee M, Singh AK, Ghosh SS, Bandyopadhyay D. Acoustic Propulsion of Vitamin C Loaded Teabots for Targeted Oxidative Stress and Amyloid Therapeutics. ACS APPLIED BIO MATERIALS 2019; 2:4571-4582. [DOI: 10.1021/acsabm.9b00677] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Tamanna Bhuyan
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Deepanjalee Dutta
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Mitradip Bhattacharjee
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Amit Kumar Singh
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Siddhartha Sankar Ghosh
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Dipankar Bandyopadhyay
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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He MT, Lee AY, Park CH, Cho EJ. Protective effect of Cordyceps militaris against hydrogen peroxide-induced oxidative stress in vitro. Nutr Res Pract 2019; 13:279-285. [PMID: 31388403 PMCID: PMC6669067 DOI: 10.4162/nrp.2019.13.4.279] [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: 09/05/2018] [Revised: 11/08/2018] [Accepted: 05/14/2019] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND/OBJECTIVES Excessive production of reactive oxygen species (ROS) such as hydroxyl (·OH), nitric oxide (NO), and hydrogen peroxide (H2O2) is reported to induce oxidative stress. ROS generated by oxidative stress can potentially damage glial cells in the nervous system. Cordyceps militaris (CM), a kind of natural herb widely found in East Asia. In this study, we investigated the free radical scavenging activity of the CM extract and its neuroprotective effects in H2O2-induced C6 glial cells. MATERIALS/METHODS The ethanol extract of CM (100-1,000 µg/mL) was used to measure DPPH, ·OH, and NO radical scavenging activities. In addition, hydrogen peroxide (H2O2)-induced C6 glial cells were treated with CM at 0.5-2.5 µg/mL for measurement of cell viability, ROS production, and protein expression resulting from oxidative stress. RESULTS The CM extract showed high scavenging activities against DPPH, ·OH, and NO radicals at concentration of 1,000 µg/mL. Treatment of CM with H2O2-induced oxidative stress in C6 glial cells significantly increased cell viability, and decreased ROS production. Cyclooxygenase-2 and inducible nitric oxide synthase protein expression was down-regulated in CM-treated groups. In addition, the protein expression level of phospho-p38 mitogen-activated protein kinase (p-p38 MAPK), phospho-c-Jun N-terminal kinase (p-JNK), and phospho-extracellular regulated protein kinases (p-ERK) in H2O2-induced C6 glial cells was down-regulated upon CM administration. CONCLUSION CM exhibited radical scavenging activity and protective effect against H2O2 as indicated by the increased cell viability, decreased ROS production, down-regulation of inflammation-related proteins as well as p-p38, p-JNK, and p-ERK protein levels. Therefore, we suggest that CM could play the protective role from oxidative stress in glial cells.
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Affiliation(s)
- Mei Tong He
- Department of Food Science and Nutrition, Pusan National University, Busandaehak-ro 63 beon-gil 2, geumjeong-gu, Busan 46241, Korea
| | - Ah Young Lee
- Department of Food Science, Gyeongnam National University of Science and Technology, Jinju 52725, Korea
| | - Chan Hum Park
- Department of Medicinal Crop Research, National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong 27709, Korea
| | - Eun Ju Cho
- Department of Food Science and Nutrition, Pusan National University, Busandaehak-ro 63 beon-gil 2, geumjeong-gu, Busan 46241, Korea
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Guesmi F, Bellamine H, Landoulsi A. Hydrogen peroxide-induced oxidative stress, acetylcholinesterase inhibition, and mediated brain injury attenuated by Thymus algeriensis. Appl Physiol Nutr Metab 2018; 43:1275-1281. [PMID: 29800528 DOI: 10.1139/apnm-2018-0107] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The aim of the current study was to evaluate acetylcholinesterase (AChE) inhibition, antioxidant enzyme activities, and malondialdehyde (MDA) levels induced by hydrophobic fractions of Thymus algeriensis (HFTS) growing in Tunisia. The results showed that hydrogen peroxide (H2O2), an oxidative stress inducer, acts by decreasing the body mass and brain mass of rats. Moreover, we found higher MDA levels in the group treated with H2O2 (P < 0.05) and a significantly lower activity of catalase, glutathione peroxidase, glutathione S-transferase, and superoxide dismutase, as well as a reduction in reduced glutathione activity in the brain tissues of H2O2-treated rats when compared with those of the control group (P < 0.05); however, rats that received HFTS with H2O2 experienced a decrease in MDA levels in the brain. In contrast, HFTS demonstrated neuroprotective effects in rat brain. Overall, exposure to HFTS prior to H2O2 induced a marked dose-dependent increase in reactive oxygen species scavenger levels (P < 0.05) accompanied by a statistically significant decrease in MDA levels (P < 0.05) when compared with no exposure. Notably, the activity of AChE was affected by exposure to natural compounds; levels were significantly lower in HFTS-treated rats and in those treated with the combination of HFTS and a low or high dose of H2O2. Furthermore, histopathological analysis showed that brain injuries occurred with high doses of H2O2 administered alone or with a low dose of HFTS, whereas a high dose of essential oil markedly alleviated neurone degeneration. The results suggest that HFTS alleviates neuroinflammation by acting as an AChE inhibitor and attenuates H2O2-induced brain toxicity.
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Affiliation(s)
- Fatma Guesmi
- a Laboratory of Biochemistry and Molecular Biology, Faculty of Sciences of Bizerte, University of Carthage, Tunis, Tunisia
| | - Houda Bellamine
- b Service of Anatomo-Pathology of Menzel Bourguiba, Bizerte, Tunisia
| | - Ahmed Landoulsi
- a Laboratory of Biochemistry and Molecular Biology, Faculty of Sciences of Bizerte, University of Carthage, Tunis, Tunisia
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Multifaceted remodeling by vitamin C boosts sensitivity of Mycobacterium tuberculosis subpopulations to combination treatment by anti-tubercular drugs. Redox Biol 2018; 15:452-466. [PMID: 29413958 PMCID: PMC5975079 DOI: 10.1016/j.redox.2017.12.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 12/28/2017] [Accepted: 12/30/2017] [Indexed: 12/03/2022] Open
Abstract
Bacterial dormancy is a major impediment to the eradication of tuberculosis (TB), because currently used drugs primarily target actively replicating bacteria. Therefore, decoding of the critical survival pathways in dormant tubercle bacilli is a research priority to formulate new approaches for killing these bacteria. Employing a network-based gene expression analysis approach, we demonstrate that redox active vitamin C (vit C) triggers a multifaceted and robust adaptation response in Mycobacterium tuberculosis (Mtb) involving ~ 67% of the genome. Vit C-adapted bacteria display well-described features of dormancy, including growth stasis and progression to a viable but non-culturable (VBNC) state, loss of acid-fastness and reduction in length, dissipation of reductive stress through triglyceride (TAG) accumulation, protective response to oxidative stress, and tolerance to first line TB drugs. VBNC bacteria are reactivatable upon removal of vit C and they recover drug susceptibility properties. Vit C synergizes with pyrazinamide, a unique TB drug with sterilizing activity, to kill dormant and replicating bacteria, negating any tolerance to rifampicin and isoniazid in combination treatment in both in-vitro and intracellular infection models. Finally, the vit C multi-stress redox models described here also offer a unique opportunity for concurrent screening of compounds/combinations active against heterogeneous subpopulations of Mtb. These findings suggest a novel strategy of vit C adjunctive therapy by modulating bacterial physiology for enhanced efficacy of combination chemotherapy with existing drugs, and also possible synergies to guide new therapeutic combinations towards accelerating TB treatment. Vitamin C induces dormancy and reversible VBNC state in M. tuberculosis. Dormancy is achieved through a well-coordinated multifaceted bacterial response. Vitamin C synergy with pyrazinamide negates bacterial tolerance to other TB drugs. Vitamin C adjunctive therapy is a potential strategy for shortening chemotherapy. Vitamin C-based models are novel screening platforms for new compounds/combinations.
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Aprotosoaie AC, Zavastin DE, Mihai CT, Voichita G, Gherghel D, Silion M, Trifan A, Miron A. Antioxidant and antigenotoxic potential of Ramaria largentii Marr & D. E. Stuntz, a wild edible mushroom collected from Northeast Romania. Food Chem Toxicol 2017; 108:429-437. [PMID: 28174115 DOI: 10.1016/j.fct.2017.02.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 02/02/2017] [Accepted: 02/04/2017] [Indexed: 01/28/2023]
Abstract
Ramaria largentii Marr & D. E. Stuntz (orange coral mushroom) is a wild edible mushroom whose chemical composition and bioactivity have not been investigated. Herein, we present a study on the phenolic constituents, antioxidant and antigenotoxic effects of a hydromethanolic extract of the fruiting bodies. Total phenolic content, estimated by Folin-Ciocalteu assay, was found to be 42.33 ± 0.18 mg GAE/g. Protocatechuic and vanillic acids were detected by HPLC-DAD-ESI-MS. The extract showed good free radical scavenging and reducing capacities (EC50 = 64.3 ± 0.2 and 61.54 ± 0.46 μg/mL, respectively). In normal Vero cells, the extract (100, 200 and 300 μg/mL) showed no genotoxic potential and moreover, almost completely protected DNA against H2O2-induced damage (2.09-7.91% tail DNA) (24 and 48 h pre-treatment). Taken together, the results of our study show that Ramaria largentii extract is devoid of genotoxicity and has a remarkable DNA protective activity against H2O2-induced damage.
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Affiliation(s)
- Ana Clara Aprotosoaie
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Universitatii Str. 16, 700115 Iasi, Romania.
| | - Daniela Elena Zavastin
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Universitatii Str. 16, 700115 Iasi, Romania.
| | - Cosmin-Teodor Mihai
- Interdisciplinary Research Department-Field Science, Alexandru Ioan Cuza University of Iasi, Carol I Bd. 20A, 700506 Iasi, Romania; National Institute of Research and Development for Biological Sciences/Biological Research Institute, Lascar Catargi Str. 47, 700107 Iasi, Romania.
| | - Gabriela Voichita
- National Institute of Research and Development for Biological Sciences/Biological Research Institute, Lascar Catargi Str. 47, 700107 Iasi, Romania.
| | - Daniela Gherghel
- National Institute of Research and Development for Biological Sciences/Biological Research Institute, Lascar Catargi Str. 47, 700107 Iasi, Romania.
| | - Mihaela Silion
- Institute of Macromolecular Chemistry Petru Poni, Grigore Ghica Voda Al. 41A, 700487 Iasi, Romania.
| | - Adriana Trifan
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Universitatii Str. 16, 700115 Iasi, Romania.
| | - Anca Miron
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Universitatii Str. 16, 700115 Iasi, Romania.
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Differential Response of Two Human Breast Cancer Cell Lines to the Phenolic Extract from Flaxseed Oil. Molecules 2016; 21:319. [PMID: 27005599 PMCID: PMC6274312 DOI: 10.3390/molecules21030319] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Revised: 02/26/2016] [Accepted: 03/02/2016] [Indexed: 12/16/2022] Open
Abstract
Many studies have evidenced that the phenolic components from flaxseed (FS) oil have potential health benefits. The effect of the phenolic extract from FS oil has been evaluated on two human breast cancer cell lines, MCF7 and MDA-MB231, and on the human non-cancerous breast cell line, MCF10A, by SRB assay, cellular death, cell cycle, cell signaling, lipid peroxidation and expression of some key genes. We have evidenced that the extract shows anti-proliferative activity on MCF7 cells by inducing cellular apoptosis, increase of the percentage of cells in G0/G1 phase and of lipid peroxidation, activation of the H2AX signaling pathway, and upregulation of a six gene signature. On the other hand, on the MDA-MB2131 cells we verified only an anti-proliferative activity, a weak lipid peroxidation, the activation of the PI3K signaling pathway and an up-regulation of four genes. Overall these data suggest that the extract has both cytotoxic and pro-oxidant effects only on MCF7 cells, and can act as a metabolic probe, inducing differences in the gene expression. For this purpose, we have performed an interactomic analysis, highlighting the existing associations. From this approach, we show that the phenotypic difference between the two cell lines can be explained through their differential response to the phenolic extract.
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Amelioration of oxidative stress in bio-membranes and macromolecules by non-toxic dye from Morinda tinctoria (Roxb.) roots. Food Chem Toxicol 2012; 50:2062-9. [DOI: 10.1016/j.fct.2012.03.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Revised: 02/17/2012] [Accepted: 03/07/2012] [Indexed: 01/25/2023]
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