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Zhu Z, Chen Z, Sakurai T, Chiba H, Hui SP. Adverse Effects of Chrysene on Human Hepatocytes via Inducement of Oxidative Stress and Dysregulation of Xenobiotic Metabolism. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.2023200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Zijian Zhu
- Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Zhen Chen
- Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | | | - Hitoshi Chiba
- Department of Nutrition, Sapporo University of Health Sciences, Sapporo, Japan
| | - Shu-Ping Hui
- Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
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2
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Gu J, Li X, Yang G, Chen H, Sun T. Investigation of the Interaction of Chrysene and Bovine Serum Albumin by Multispectroscopic Method. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2020.1718718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Jiali Gu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning, China
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, Liaoning, China
| | - Xumei Li
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, Liaoning, China
| | - Gang Yang
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, Liaoning, China
| | - Hong Chen
- College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, Liaoning, China
| | - Ting Sun
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang, Liaoning, China
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3
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Li T, Wei Z, Kuang H. UPLC-orbitrap-MS-based metabolic profiling of HaCaT cells exposed to withanolides extracted from Datura metel.L: Insights from an untargeted metabolomics. J Pharm Biomed Anal 2021; 199:113979. [PMID: 33845385 DOI: 10.1016/j.jpba.2021.113979] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/12/2021] [Accepted: 02/12/2021] [Indexed: 01/25/2023]
Abstract
In recent decades, more and more attention to the withanolides extracted from Datura metel.L has been paid due to their anti-psoriatic effects. Withanolides have also been reported to exhibit anti-inflammatory and anti-proliferative properties. Thus, withanolides have been considered as a promising candidate of anti-psoriatic drug. The aim of this study was to investigated the metabolic network of HaCaT cells after exposure to withanolides to identify anti-psoriatic mechanism induced by withanolides on skin cells. In this experiment, our results demonstrated that exposure to withanolides at concentrations beyond 50 μg/mL inhibited cell proliferation and induced cell apoptosis in a dose-dependent manner. In addition, withanolides-induced reactive oxygen species (ROS) generation and mitochondrial depolarization in HaCaT cells. In this research, ultra-high performance liquid chromatography coupled with orbitrap mass spectrometry (UPLC-orbitrap-MS) method was applied to profile metabolite changes in HaCaT cells exposed to withanolides. In total, significant variations in 38 differential metabolites were identified between withanolides exposure and untreated groups. The exposure of HaCaT cells to withanolides at the dose of 200 μg/mL for 24 h was revealed by the disturbance of energy metabolism, amino acid metabolism, lipid metabolism and nucleic acid metabolism. UPLC-orbitrap-MS-based cell metabolomics provided a comprehensive method for the identification of withanolides' anti-psoriasis mechanisms in vitro. And above metabolic disorders also reflected potential therapeutic targets for treating psoriasis.
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Affiliation(s)
- Tingting Li
- Guangxi University of Science and Technology, 257 Liu-shi Road, Liuzhou, 545005, China; Heilongjiang University of Traditional Chinese Medicine, Heping Road 24, Harbin, 150040, China.
| | - Zheng Wei
- Ganzhou City People's Hospital, 18 Mei-guan Avenue, Ganzhou, 341000, China.
| | - Haixue Kuang
- Heilongjiang University of Traditional Chinese Medicine, Heping Road 24, Harbin, 150040, China.
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4
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Orhan C, Tuzcu M, Gencoglu H, Sahin E, Sahin N, Ozercan IH, Namjoshi T, Srivastava V, Morde A, Rai D, Padigaru M, Sahin K. Different Doses of β-Cryptoxanthin May Secure the Retina from Photooxidative Injury Resulted from Common LED Sources. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6672525. [PMID: 33628377 PMCID: PMC7895591 DOI: 10.1155/2021/6672525] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/27/2021] [Accepted: 02/01/2021] [Indexed: 01/01/2023]
Abstract
Retinal damage associated with loss of photoreceptors is a hallmark of eye diseases such as age-related macular degeneration (AMD) and diabetic retinopathy. Potent nutritional antioxidants were previously shown to abate the degenerative process in AMD. β-Cryptoxanthin (BCX) is an essential dietary carotenoid with antioxidant, anti-inflammatory, and provitamin A activity. It is a potential candidate for developing intervention strategies to delay the development/progression of AMD. In the current study, the effect of a novel, highly purified BCX oral formulation on the rat retinal damage model was evaluated. Rats were fed with BCX for four weeks at the doses of 2 and 4 mg/kg body weight in the form of highly bioavailable oil suspension, followed by retinal damage by exposing to the bright light-emitting diode (LED) light (750 lux) for 48 hrs. Animals were sacrificed after 48 hours, and eyes and blood samples were collected and analyzed. BCX supplementations (2 and 4 mg/kg) showed improvements in the visual condition as demonstrated by histopathology of the retina and measured parameters such as total retinal thickness and outer nuclear layer thickness. BCX supplementation helped reduce the burden of oxidative stress as seen by decreased serum and retinal tissue levels of malondialdehyde (MDA) and restored the antioxidant enzyme activities in BCX groups. Further, BCX supplementation modulated inflammatory markers (IL-1β, IL-6, and NF-κB), apoptotic proteins (Bax, Bcl-2, caspase 3), growth proteins and factors (GAP43, VEGF), glial and neuronal proteins (GFAP, NCAM), and heme oxygenase-1 (HO-1), along with the mitochondrial stress markers (ATF4, ATF6, Grp78, Grp94) in the rat retinal tissue. This study indicates that oral supplementation of BCX exerts a protective effect on light-induced retinal damage in the rats via reducing oxidative stress and inflammation, also protected against mitochondrial DNA damage and cellular death.
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Affiliation(s)
- Cemal Orhan
- Department of Animal Nutrition, Faculty of Veterinary Science, Firat University, Elazig 23119, Turkey
| | - Mehmet Tuzcu
- Division of Biology, Faculty of Science, Firat University, Elazig 23119, Turkey
| | - Hasan Gencoglu
- Division of Biology, Faculty of Science, Firat University, Elazig 23119, Turkey
| | - Emre Sahin
- Department of Animal Nutrition, Faculty of Veterinary Science, Firat University, Elazig 23119, Turkey
| | - Nurhan Sahin
- Department of Animal Nutrition, Faculty of Veterinary Science, Firat University, Elazig 23119, Turkey
| | | | - Tejas Namjoshi
- OmniActive Health Technologies, Biotechnology Park, Pune 411057, India
| | | | - Abhijeet Morde
- OmniActive Health Technologies, Wagle Estate, Thane 400604, India
| | - Deshanie Rai
- OmniActive Health Technologies Inc, Morristown, NJ 07960, USA
| | | | - Kazim Sahin
- Department of Animal Nutrition, Faculty of Veterinary Science, Firat University, Elazig 23119, Turkey
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5
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Ding Z, Yi Y, Wang W, Zhang Q. Atmospheric degradation of chrysene initiated by OH radical: A quantum chemical investigation. CHEMOSPHERE 2021; 263:128267. [PMID: 33297211 DOI: 10.1016/j.chemosphere.2020.128267] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/27/2020] [Accepted: 09/02/2020] [Indexed: 06/12/2023]
Abstract
Chrysene, a four-ring polycyclic aromatic hydrocarbon (PAH), is recalcitrant to biodegradation and persistent in the environment due to its low water solubility. Here, we investigated the atmospheric degradation process of chrysene initiated by OH radical in the presence of O2 and NOX using quantum chemical calculations. The reaction mechanisms were elucidated by density functional theory (DFT) at M06-2X/6-311++G(3df,2p)//M06-2X/6-311+G(d,p) level, and the kinetics calculations were conducted with Rice-Ramsperger-Kassel-Marcus (RRKM) theory. The results show that the oxidation products of atmospheric chrysene are oxygenated PAHs (OPAHs) and nitro-PAHs (NPAHs), including nitro-chrysene, hydroxychrysene, hydroxychrysenone, 11-benzo[a]fluorenone and dialdehydes. Most of the products have deleterious effects on the environment and human beings due to their acute toxicity, carcinogenicity and mutagenicity. The overall rate constant for the reaction of chrysene with OH radical is 4.48 × 10-11 cm3 molecule-1 s-1 and the atmospheric lifetime of chrysene determined by OH radical is 6.4 h. The present work provided a comprehensive understanding on the degradation mechanisms and kinetics of chrysene, which could help to clarify its atmospheric fate and environmental risks.
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Affiliation(s)
- Zhezheng Ding
- Environment Research Institute, Shandong University, Qingdao, 266237, PR China
| | - Yayi Yi
- Environment Research Institute, Shandong University, Qingdao, 266237, PR China
| | - Wenxing Wang
- Environment Research Institute, Shandong University, Qingdao, 266237, PR China
| | - Qingzhu Zhang
- Environment Research Institute, Shandong University, Qingdao, 266237, PR China.
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6
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Nisar MF, Yousaf M, Saleem M, Khalid H, Niaz K, Yaqub M, Waqas MY, Ahmed A, Abaid-Ullah M, Chen J, Chen C, Rengasamy KRR, Wan C(C. Development of Iron Sequester Antioxidant Quercetin@ZnO Nanoparticles with Photoprotective Effects on UVA-Irradiated HaCaT Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6072631. [PMID: 34484566 PMCID: PMC8413031 DOI: 10.1155/2021/6072631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 08/12/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Solar ultraviolet radiation A (UVA, 320-400 nm) is a significant risk factor leading to various human skin conditions such as premature aging or photoaging. This condition is enhanced by UVA-mediated iron release from cellular iron proteins affecting huge populations across the globe. PURPOSE Quercetin-loaded zinc oxide nanoparticles (quercetin@ZnO NPs) were prepared to examine its cellular iron sequestration ability to prevent the production of reactive oxygen species (ROS) and inflammatory responses in HaCaT cells. METHODS Quercetin@ZnO NPs were synthesized through a homogenous precipitation method, and the functional groups were characterized by Fourier transform infrared (FTIR) spectroscopy, whereas scanning electron microscopy (SEM) described the morphologies of NPs. MTT and qRT-PCR assays were used to examine cell viability and the expression levels of various inflammatory cytokines. The cyclic voltammetry (CV) was employed to evaluate the redox potential of quercetin-Fe3+/quercetin-Fe2+ complexes. RESULTS The material characterization results supported the loading of quercetin molecules on ZnO NPs. The CV and redox potential assays gave Fe-binding capability of quercetin at 0.15 mM and 0.3 mM of Fe(NO3)3. Cytotoxicity assays using quercetin@ZnO NPs with human HaCaT cells showed no cytotoxic effects and help regain cell viability loss following UVA (150 kJ/m2). CONCLUSION Quercetin@ZnO NPs showed that efficient quercetin release action is UV-controlled, and the released quercetin molecules have excellent antioxidant, anti-inflammatory, and iron sequestration potential. Quercetin@ZnO NPs have superior biocompatibility to provide UVA protection and medication at once for antiphotoaging therapeutics.
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Affiliation(s)
- Muhammad Farrukh Nisar
- 1Jiangxi Key Laboratory for Post-Harvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables in Jiangxi Province, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
- 2Department of Physiology and Biochemistry, Cholistan University of Veterinary and Animal Sciences (CUVAS), Bahawalpur, Punjab 63100, Pakistan
- 3Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang, 330045 Jiangxi, China
| | - Maryam Yousaf
- 4Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
- 5Department of Chemistry, Faculty of Sciences, University of Kotli, Azad Jammu and Kashmir, Pakistan
| | - Muhammad Saleem
- 5Department of Chemistry, Faculty of Sciences, University of Kotli, Azad Jammu and Kashmir, Pakistan
- 6Institute of Advance Study, Shenzhen University, Nanshan District, Shenzhen, Guangdong 518060, China
| | - Hamad Khalid
- 4Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
| | - Kamal Niaz
- 7Department of Pharmacology and Toxicology, CUVAS, Bahawalpur, Punjab 63100, Pakistan
| | - Mustansara Yaqub
- 4Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
| | - Muhammad Yasir Waqas
- 2Department of Physiology and Biochemistry, Cholistan University of Veterinary and Animal Sciences (CUVAS), Bahawalpur, Punjab 63100, Pakistan
| | - Arsalan Ahmed
- 4Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
| | - Muhammad Abaid-Ullah
- 8Department of Life Sciences, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan, Pakistan
| | - Jinyin Chen
- 1Jiangxi Key Laboratory for Post-Harvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables in Jiangxi Province, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
- 9College of Materials and Chemical Engineering, Pingxiang University, Pingxiang 337055, China
| | - Chuying Chen
- 1Jiangxi Key Laboratory for Post-Harvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables in Jiangxi Province, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
| | - Kannan R. R. Rengasamy
- 10Green Biotechnologies Research Centre of Excellence, University of Limpopo, Private Bag X1106, Polokwane Sovenga 0727, South Africa
| | - Chunpeng (Craig) Wan
- 1Jiangxi Key Laboratory for Post-Harvest Technology and Nondestructive Testing of Fruits & Vegetables, Collaborative Innovation Center of Post-Harvest Key Technology and Quality Safety of Fruits and Vegetables in Jiangxi Province, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China
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7
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Gao Y, Zhou X, Zhou Y, Zhang W, Zhao L. Chrysene accelerates the proceeding of chronic obstructive pulmonary disease with the aggravation of inflammation and apoptosis in cigarette smoke exposed mice. Hum Exp Toxicol 2020; 40:1031-1044. [PMID: 33345606 DOI: 10.1177/0960327120979343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Chrysene, one of the basic polycyclic aromatic hydrocarbons (PAHs), has been reported to make damages to human health and living environment. Chronic obstructive pulmonary disease (COPD) is a progressive disorder with high morbidity and mortality. To investigate the role of chrysene in the development of COPD, male C57BL/6 mice were exposed to the cigarette smoke (CS) followed with the administration of chrysene. Morphological analyses indicated that chrysene caused earlier and severer pathological changes in CS-exposed mice. Besides, CS-exposed mice with chrysene treatment showed obvious collagen deposition, elevated α-smooth muscle actin (α-SMA) expression and reduced E-cadherin abundance at earlier stage, which suggested the acceleration and aggravation of pulmonary fibrosis. Moreover, quantification of leukocytes and pro-inflammatory cytokines in bronchoalveolar lavage fluid (BALF) and lung tissues implied that chrysene significantly exacerbated the proceeding of inflammation in CS-exposed mice. Furthermore, significantly increased apoptotic rates, augmented expressions of apoptotic related proteins and highly expressed TRPV1 were determined in CS-exposed mice with chrysene treatment, which indicated the association between COPD pathogenesis and TRPV1 channel. In summary, our findings elucidate that chrysene accelerates the development of COPD in a murine model with new molecular mechanisms.
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Affiliation(s)
- Yuan Gao
- Department of Pulmonary and Critical Care Medicine, 85024Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Xinjia Zhou
- Department of Otolaryngology Head and Neck Surgery, 85024Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yan Zhou
- Department of Pulmonary and Critical Care Medicine, 85024Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Wei Zhang
- Department of Pulmonary and Critical Care Medicine, 85024Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Li Zhao
- Department of Pulmonary and Critical Care Medicine, 85024Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
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8
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Malkova A, Borska L, Smejkalova J, Hamakova K, Kremlacek J, Svadlakova T, Borsky P, Holmannova D, Fiala Z. Genotoxic effect of simultaneous therapeutic exposure to polycyclic aromatic hydrocarbons and UV radiation. J Appl Toxicol 2020; 41:907-914. [PMID: 33015835 DOI: 10.1002/jat.4074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/07/2020] [Accepted: 09/07/2020] [Indexed: 11/12/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) and ultraviolet radiation (UV) represent genotoxic factors that commonly occur in the living and working environment. The dermal form of exposure represents a significant part of the total load of dangerous chemical and physical environmental factors to which an organism is subjected. However, simultaneous dermal exposures to PAHs (pharmaceutical crude coal tar [CCT]) and UV (UVA and UVB) also have therapeutic uses. A typical example is Goeckerman therapy (GT) for psoriasis. The question of the therapeutic efficacy of GT and the related level of genotoxic danger is still under discussion. The aim of the present study was to compare four GT variants (G1-G4) in terms of efficacy and acceptable genotoxic hazard. Efficacy was expressed by the psoriasis area of severity index (PASI) score, genotoxic hazard by chromosomal aberration in peripheral lymphocytes. The lowest risk of genotoxic hazard and the lowest efficiency was observed in G1 variant (3% of the CCT and UVA + UVB). The efficacy of G2 (4% CCT and UVA + UVB), G3 (4% CCT and UVB), and G4 variants (5% CCT and UVA + UVB) was comparable. The highest risk of genotoxic hazard was found in the G3 variant. In the terms of sufficient efficacy and acceptable genotoxic hazard, a combination of 4% or 5% of CCT and UVA and UVB seems to be acceptable (variants G2 and G4).
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Affiliation(s)
- Andrea Malkova
- Institute of Hygiene and Preventive Medicine, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Lenka Borska
- Institute of Pathological Physiology, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Jindra Smejkalova
- Institute of Hygiene and Preventive Medicine, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Kvetoslava Hamakova
- Clinic of Dermatology and Venereology, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Jan Kremlacek
- Institute of Pathological Physiology, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic.,Institute of Biophysics, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Tereza Svadlakova
- Institute of Hygiene and Preventive Medicine, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic.,Institute of Clinical Immunology and Allergology, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Pavel Borsky
- Institute of Hygiene and Preventive Medicine, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Drahomira Holmannova
- Institute of Hygiene and Preventive Medicine, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Zdenek Fiala
- Institute of Hygiene and Preventive Medicine, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
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Arekhi M, Terry LG, John GF, Al-Khayat JA, Castillo AB, Vethamony P, Clement TP. Field and laboratory investigation of tarmat deposits found on Ras Rakan Island and northern beaches of Qatar. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 735:139516. [PMID: 32492568 DOI: 10.1016/j.scitotenv.2020.139516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 05/15/2020] [Accepted: 05/16/2020] [Indexed: 06/11/2023]
Abstract
Beaches of Ras Rakan Island, located off the northern tip of Qatar, are extensively contaminated by highly weathered tarmat deposits. The focus of this study is to determine the possible source of the contamination and complete a preliminary assessment of its potential environmental impacts. The field data collected at this site indicated that the tarmat residues contained highly weathered, black, asphalt-like material and the contamination problem was widespread. Based on these field observations, the following two hypotheses were formulated: (1) the tarmats must have formed from the residual oil deposited by a relatively large, regional-scale oil spill event, and (2) the oil spill must be relatively old. As part of this study, we collected tarmat residues from several beaches located along the northern region of Qatar Peninsula. We found the hopane fingerprints of these tarmat samples were identical to the fingerprints of the samples collected from Ras Rakan Island. These results together with our physical field observational data validated our hypothesis that the oil spill should have been a regional-scale event. Furthermore, we compared the measured hopane fingerprints of our field samples with fingerprints of reference crude oils from Qatar, Saudi Arabia, and Basrah (located close to Kuwait border), and with the literature-derived hopane fingerprints of Kuwaiti and Iranian crude oils. This analysis indicated that the hopane fingerprints of the tarmat samples closely matched the Kuwaiti and Basrah crude oil fingerprints. Since there were no known oil spills of Basrah crude in this region, the highly weathered, asphalt-looking tarmats should have most likely formed from the 1991 Gulf War oil spill, an old oil spill. The concentrations of parent and alkylated PAHs in the tarmat samples were also quantified to provide a preliminary assessment of potential environmental risks posed by these tarmats to Qatar's coastal ecosystem.
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Affiliation(s)
- Marieh Arekhi
- Department of Civil, Construction and Environmental Engineering, University of Alabama, Tuscaloosa, AL, USA
| | - Leigh G Terry
- Department of Civil, Construction and Environmental Engineering, University of Alabama, Tuscaloosa, AL, USA
| | - Gerald F John
- Department of Science and Technology, Bryant University, RI, USA
| | | | | | | | - T Prabhakar Clement
- Department of Civil, Construction and Environmental Engineering, University of Alabama, Tuscaloosa, AL, USA.
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10
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Putz AM, Ianăși C, Dudás Z, Coricovac D, Watz C(F, Len A, Almásy L, Sacarescu L, Dehelean C. SiO 2-PVA-Fe(acac) 3 Hybrid Based Superparamagnetic Nanocomposites for Nanomedicine: Morpho-textural Evaluation and In Vitro Cytotoxicity Assay. Molecules 2020; 25:molecules25030653. [PMID: 32033018 PMCID: PMC7038086 DOI: 10.3390/molecules25030653] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/31/2020] [Accepted: 02/01/2020] [Indexed: 12/29/2022] Open
Abstract
A facile sol-gel route has been applied to synthesize hybrid silica-PVA-iron oxide nanocomposite materials. A step-by-step calcination (processing temperatures up to 400 °C) was applied in order to oxidize the organics together with the iron precursor. Transmission electron microscopy, X-ray diffraction, small angle neutron scattering, and nitrogen porosimetry were used to determine the temperature-induced morpho-textural modifications. In vitro cytotoxicity assay was conducted by monitoring the cell viability by the means of MTT assay to qualify the materials as MRI contrast agents or as drug carriers. Two cell lines were considered: the HaCaT (human keratinocyte cell line) and the A375 tumour cell line of human melanoma. Five concentrations of 10 µg/mL, 30 µg/mL, 50 µg/mL, 100 µg/mL, and 200 µg/mL were tested, while using DMSO (dimethylsulfoxid) and PBS (phosphate saline buffer) as solvents. The HaCaT and A375 cell lines were exposed to the prepared agent suspensions for 24 h. In the case of DMSO (dimethyl sulfoxide) suspensions, the effect on human keratinocytes migration and proliferation were also evaluated. The results indicate that only the concentrations of 100 μg/mL and 200 μg/mL of the nanocomposite in DMSO induced a slight decrease in the HaCaT cell viability. The PBS based in vitro assay showed that the nanocomposite did not present toxicity on the HaCaT cells, even at high doses (200 μg/mL agent).
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Affiliation(s)
- Ana-Maria Putz
- ”Coriolan Dragulescu” Institute of Chemistry, Romanian Academy, Mihai Viteazul Bd., No. 24, 300223 Timişoara, Romania; (A.-M.P.); (C.I.)
| | - Cătălin Ianăși
- ”Coriolan Dragulescu” Institute of Chemistry, Romanian Academy, Mihai Viteazul Bd., No. 24, 300223 Timişoara, Romania; (A.-M.P.); (C.I.)
| | - Zoltán Dudás
- Wigner Research Centre for Physics, POB 49 1525 Budapest, Hungary
- Correspondence:
| | - Dorina Coricovac
- Pharmacy II Department, Faculty of Pharmacy, “Victor Babes ¸” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (D.C.)
| | - Claudia (Farcas) Watz
- Pharmacy II Department, Faculty of Pharmacy, “Victor Babes ¸” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (D.C.)
| | - Adél Len
- Centre for Energy Research, Konkoly-Thege 29-33, 1121 Budapest, Hungary;
- University of Pécs, Faculty of Engineering and Information technology, Boszorkány St. 2, 7624 Pécs, Hungary
| | - László Almásy
- Wigner Research Centre for Physics, POB 49 1525 Budapest, Hungary
| | - Liviu Sacarescu
- Institute of Macromolecular Chemistry “Petru Poni”, Aleea Grigore Ghica Voda, nr. 41A 700487 Iasi, Romania;
| | - Cristina Dehelean
- Pharmacy II Department, Faculty of Pharmacy, “Victor Babes ¸” University of Medicine and Pharmacy, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania; (D.C.)
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11
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Takahashi Y, Iwamoto T, Suzuki Y, Kajiwara Y, Hatono M, Tsukioki T, Kawada K, Kochi M, Ikeda H, Shien T, Taira N, Matsuoka J, Doihara H, Toyooka S. Evaluation of Therapeutic Target Gene Expression Based on Residual Cancer Burden Classification After Neoadjuvant Chemotherapy for HER2-Negative Breast Cancer. Clin Breast Cancer 2019; 20:117-124.e4. [PMID: 31570267 DOI: 10.1016/j.clbc.2019.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 07/17/2019] [Accepted: 07/18/2019] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Patients with residual disease usually have a poor prognosis after neoadjuvant chemotherapy for breast cancer. The aim of this study was to explore therapeutic targets and potential additional adjuvant treatments for patients with residual disease after standard neoadjuvant chemotherapy. PATIENTS AND METHODS We retrieved publicly available complementary DNA microarray data from 399 human epidermal growth factor receptor 2 (HER2)-negative primary breast cancer samples from patients who underwent standard neoadjuvant chemotherapy. We analyzed the messenger RNA (mRNA) expression levels of key breast cancer markers and therapeutic target genes according to residual cancer burden (RCB) classification: RCB-0/I, RCB-II, and RCB-III. RESULTS Among hormone receptor-positive samples, there were more luminal A tumors by PAM50 (Prediction Analysis of Microarray 50 [Prosigna], aka Prosigna Breast Cancer Prognostic Gene Signature Assay) in RCB-III than in RCB-0/I and RCB-II (P < .01). The mRNA expressions of ESR1 and PGR were significantly higher, and that of MKI67 was lower in RCB-II and RCB-III than in RCB-0/I. The mRNA expression of cyclin D1 was up-regulated in RCB-III and that of CDKN2A was down-regulated in RCB-III (P = .027 and < .01). Among triple-negative (TN) samples, RCB-III had higher clinical stage and more lymph node-positive samples than RCB-0/1 and RCB-II (P < .01). In both subtypes, VEGF-C expression was significantly higher in RCB-III than in RCB-0/I and RCB-II. CONCLUSION In hormone receptor-positive breast cancer, biological features such as luminal A were associated with RCB; this trend was not observed in TN breast cancer. Further, some targeted therapies should be tested as new strategies after standard neoadjuvant chemotherapy in future clinical trials.
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Affiliation(s)
- Yuko Takahashi
- Department of General Thoracic Surgery and Breast and Endocrinological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Takayuki Iwamoto
- Departments of Breast and Endocrine Surgery, Okayama University Hospital, Okayama, Japan.
| | - Yoko Suzuki
- Departments of Breast and Endocrine Surgery, Okayama University Hospital, Okayama, Japan
| | - Yukiko Kajiwara
- Departments of Breast and Endocrine Surgery, Okayama University Hospital, Okayama, Japan
| | - Minami Hatono
- Department of General Thoracic Surgery and Breast and Endocrinological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Takahiro Tsukioki
- Department of General Thoracic Surgery and Breast and Endocrinological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kengo Kawada
- Department of General Thoracic Surgery and Breast and Endocrinological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Mariko Kochi
- Departments of Breast and Endocrine Surgery, Okayama University Hospital, Okayama, Japan
| | - Hirokuni Ikeda
- Department of General Thoracic Surgery and Breast and Endocrinological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Tadahiko Shien
- Department of General Thoracic Surgery and Breast and Endocrinological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Naruto Taira
- Department of General Thoracic Surgery and Breast and Endocrinological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Junji Matsuoka
- Departments of Palliative and Supportive Medicine, Okayama University Hospital, Okayama, Japan
| | - Hiroyoshi Doihara
- Department of General Thoracic Surgery and Breast and Endocrinological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Shinichi Toyooka
- Department of General Thoracic Surgery and Breast and Endocrinological Surgery, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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Alzahrani FM, Katubi KMS, Ali D, Alarifi S. Apoptotic and DNA-damaging effects of yttria-stabilized zirconia nanoparticles on human skin epithelial cells. Int J Nanomedicine 2019; 14:7003-7016. [PMID: 31564862 PMCID: PMC6733180 DOI: 10.2147/ijn.s212255] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 07/25/2019] [Indexed: 12/22/2022] Open
Abstract
Background Yttria-stabilized zirconia (Y2O3/ZrO2) nanoparticles are one of the important nanoparticles extensively used in manufacturing of plastics, textiles, catalyst, etc. Still, the cytotoxic and apoptotic effects of yttria-stabilized zirconia nanoparticles have not been well identified on human skin keratinocyte (HaCaT) cells. Therefore, in this study, we have designed to examine the cytotoxic potential of yttria-stabilized zirconia nanoparticles in HaCaT cells. Methods Prior to treatment, the yttria-stabilized zirconia nanoparticles were characterized by using different advanced instruments viz. dynamic light scattering (DLS), scanning electron microscope (SEM) and transmission electron microscope (TEM). Cell viability of HaCaT cells was measured by using MTS and NRU assays and viability of cells was reduced in a dose- and time-dependent manner. Results Reduction in the viability of cells was correlated with the rise of reactive oxygen species generation, increased caspase-3, mitochondria membrane potential and evidence of DNA strand breakage. These were consistent with the possibility that mitochondria damage can play a significant role in the cytotoxic response. Moreover, the activity of oxidative enzymes such as lipid peroxide (LPO) was increased and glutathione was reduced in HaCaT cells exposed with yttria-stabilized zirconia nanoparticles. It is also important to indicate that HaCaT cells appear to be more susceptible to yttria-stabilized zirconia nanoparticles exposure after 24 hrs. Conclusion This result provides a dose- and time-dependent apoptosis and genotoxicity of yttria-stabilized zirconia nanoparticles in HaCaT cells.
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Affiliation(s)
- Fatimah Mohammed Alzahrani
- Chemistry Department, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | | | - Daoud Ali
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saud Alarifi
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
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Dubey D, Srivastav AK, Singh J, Chopra D, Qureshi S, Kushwaha HN, Singh N, Ray RS. Photoexcited triclosan induced DNA damage and oxidative stress via p38 MAP kinase signaling involving type I radicals under sunlight/UVB exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 174:270-282. [PMID: 30844667 DOI: 10.1016/j.ecoenv.2019.02.065] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/14/2019] [Accepted: 02/20/2019] [Indexed: 06/09/2023]
Abstract
Triclosan (TCS) is an antimicrobial preservative used in personal care products. Here, we have studied the phototoxicity, photogenotoxicity of TCS and its molecular mechanism involving p38 mitogen activated protein kinase (MAPK) pathway under UVB/sunlight exposure. We found that TCS showed photodegradation and photoproducts formation under UVB/sunlight. In silico study suggests that photosensitized TCS loses its preservative property due to the formation of its photoproducts. Photosensitized TCS induces significant O2•-, •OH generation and lipid peroxidation via type-I photochemical reaction mechanism under UVB/sunlight exposure. We performed intracellular study of TCS on human skin keratinocytes (HaCaT cell-line) under the ambient intensity of UVB (0.6 mW/cm2) and sunlight exposure. Significant intracellular ROS generation was observed through DCFH2-DA/DHE assays along with a significant reduction in cell viability through MTT and NRU assays in photosensitized TCS. Photosensitized TCS also induces endoplasmic reticulum (ER) stress as shown through ER-tracker/DAPI staining and Ca2+ release. It further induced cell cycle arrest through the sub-G1 phase augmentation and caused lysosomal/mitochondrial destabilization. Photogenotoxicity was shown through significant tail DNA, micronuclei and cyclobutane pyrimidine dimers (CPDs) formations. Cell signaling mechanism implicated upregulated expression of cleaved Caspase-3, Bax, phospho-p38, phospho-JNK and cytochrome C, thereby downregulated Bcl-2 expressions. Results advocate that TCS induces phototoxic effects via type I mediated photodynamic mechanism and activation of MAPK pathway. We conclude that photoexcited TCS may be deleterious to human health at the ambient environmental intensities of sunlight reaching at the earth's surface. Therefore, it may be replaced by alternative safe preservative.
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Affiliation(s)
- Divya Dubey
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; School of Dental Sciences, Department of Biochemistry, Babu Banarasi Das University, BBD City, Faizabad Road, Lucknow 226028, Uttar Pradesh, India
| | - Ajeet K Srivastav
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; School of Dental Sciences, Department of Biochemistry, Babu Banarasi Das University, BBD City, Faizabad Road, Lucknow 226028, Uttar Pradesh, India; Aryan Essentials Private Limited (Brand Name-Wikka), Mahatma Gandhi Road, Ghitorni, New Delhi 110030, India
| | - Jyoti Singh
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Deepti Chopra
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; School of Dental Sciences, Department of Biochemistry, Babu Banarasi Das University, BBD City, Faizabad Road, Lucknow 226028, Uttar Pradesh, India
| | - Saba Qureshi
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Hari Narayan Kushwaha
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Nivedita Singh
- Department of Bioinformatics, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Ratan Singh Ray
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India.
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Wang YL, Wang LZ, Sun JD, Li XR, Wang Z, Sun LR. [Effect of ultraviolet irradiation on the proliferation of acute promyelocytic leukemia cells under hypoxic conditions and related mechanisms]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2019; 21:491-496. [PMID: 31104669 PMCID: PMC7389421 DOI: 10.7499/j.issn.1008-8830.2019.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To study the effect of 280 nm-LED ultraviolet irradiation on the proliferation of acute promyelocytic leukemia (APL) HL-60 cells under hypoxic conditions and related mechanism. METHODS HL-60 cells in the logarithmic growth phase were selected and divided into control, hypoxia, ultraviolet and hypoxia+ultraviolet groups. The cells in the hypoxia group were treated with cobalt chloride (with a final concentration of 150 μmol/L), those in the ultraviolet group were irradiated by 280 nm-LED ultraviolet with an energy intensity of 30 J/m2, and those in the hypoxia+ultraviolet group were treated with cobalt chloride and then irradiated by 280 nm-LED ultraviolet. After 48 hours of treatment, the cells were placed under an invert microscope to observe cell morphology. CCK-8 assay was used to measure the inhibition rate of cell proliferation. Annexin V-FITC/PI double staining flow cytometry was used to evaluate cell apoptosis. Quantitative real-time PCR was used to measure the mRNA expression of Bcl-2. Each experiment above was repeated three times independently. RESULTS Compared with the control group, the experimental groups showed shrinkage, decreased brightness, and disordered arrangement of cells, and the number of cells decreased over the time of culture. There were significant differences in the inhibition rate of cell proliferation and cell apoptosis rate among the groups (P<0.01), and the hypoxia+ultraviolet group showed the strongest inhibition of cell proliferation and induction of cell apoptosis, followed by the ultraviolet group and the hypoxia group. Compared with the control group, the other three groups had a gradual reduction in the mRNA expression of Bcl-2, and the hypoxia+ultraviolet group had a significantly greater reduction than the hypoxia and ultraviolet groups (P<0.01). CONCLUSIONS Both hypoxia and ultraviolet irradiation can inhibit the proliferation of HL-60 cells and induce cell apoptosis, and ultraviolet irradiation has a better effect on proliferation inhibition and cell apoptosis under hypoxic conditions than under normoxic conditions, possibly by downregulating the mRNA expression of Bcl-2.
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Affiliation(s)
- Yi-Lin Wang
- Department of Pediatrics, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China.
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Ali D, Tripathi A, Al Ali H, Shahi Y, Mishra KK, Alarifi S, Alkahtane AA, Manohardas S. ROS-dependent Bax/Bcl2 and caspase 3 pathway-mediated apoptosis induced by zineb in human keratinocyte cells. Onco Targets Ther 2018; 11:489-497. [PMID: 29416349 PMCID: PMC5788927 DOI: 10.2147/ott.s140358] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
There are a large number of agricultural workers who are exposed to pesticides through skin and inhalation. The best approach to identify altered molecular pathways during dermal exposure to pesticides is relevant to risk-associated concern about skin safety. In this study, we investigated the cytotoxic effect of zineb, a fungicide, in human keratinocyte (HaCaT) cells. HaCaT cells were treated with zineb (1–40 µg/mL) for 24 hours. Cellular and molecular mechanisms of cell toxicity were investigated through MTT and neutral red-uptake assays. Zineb reduced viability of HaCaT cells and induced apoptosis in a concentration-dependent manner. Zineb increased levels of Bax and caspase 3 and inhibited the level of Bcl2, which subsequently induced apoptosis via the Bax/Bcl2 and caspase pathway. Therefore, zineb could have induced apoptosis through the mitochondrial pathway in HaCaT cells. Our study suggests that zineb is cytotoxic to HaCaT cells via the induction of apoptosis and oxidative stress in vitro.
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Affiliation(s)
- Daoud Ali
- Department of Zoology, Science College, King Saud University, Riyadh, Saudi Arabia
| | | | - Hussain Al Ali
- Centre of Excellence for Genomics, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | | | | | - Saud Alarifi
- Department of Zoology, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Abdullah A Alkahtane
- Department of Zoology, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Salem Manohardas
- Department of Zoology, Science College, King Saud University, Riyadh, Saudi Arabia
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Verma A, Kushwaha HN, Srivastava AK, Srivastava S, Jamal N, Srivastava K, Ray RS. Piperine attenuates UV-R induced cell damage in human keratinocytes via NF-kB, Bax/Bcl-2 pathway: An application for photoprotection. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 172:139-148. [PMID: 28550736 DOI: 10.1016/j.jphotobiol.2017.05.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 05/13/2017] [Accepted: 05/14/2017] [Indexed: 11/29/2022]
Abstract
Chronic ultraviolet radiation (UV-R) exposure causes skin disorders like erythema, edema, hyperpigmentation, photoaging and photocarcinogenesis. Recent research trends of researchers have focused more attention on the identification and use of photo stable natural agents with photoprotective properties. Piperine (PIP), as a plant alkaloid, is an important constituent present in black pepper (Piper nigrum), used widely in ayurvedic and other traditional medicines and has broad pharmacological properties. The study was planned to photoprotective efficacy of PIP in human keratinocyte (HaCaT) cell line. We have assessed the UV-R induced activation of transcription factor NF-κB in coordination with cell death modulators (Bax/Bcl-2 and p21). The LC-MS/MS analysis revealed that PIP was photostable under UV-A/UV-B exposure. PIP (10μg/ml) attenuates the UV-R (A and B) induced phototoxicity of keratinocyte cell line through the restoration of cell viability, inhibition of ROS, and malondialdehyde generation. Further, PIP inhibited UV-R mediated DNA damage, prevented micronuclei formation, and reduced sub-G1 phase in cell cycle, which supported against photogenotoxicity. This study revealed that PIP pretreatment strongly suppressed UV-R induced photodamages. Molecular docking studies suggest that PIP binds at the active site of NF-κB, and thus, preventing its translocation to nucleus. In addition, transcriptional and translational analysis advocate the increased expression of NF-κB and concomitant decrease in IkB-α expression under UV-R exposed cells, favouring the apoptosis via Bax/Bcl-2 and p21 pathways. However, PIP induced expression of IkB-α suppress the NF-κB activity which resulted in suppression of apoptotic marker genes and proteins that involved in photoprotection. Therefore, we suggest the applicability of photostable PIP as photoprotective agent for human use.
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Affiliation(s)
- Ankit Verma
- Photobiology Laboratory, System Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Department of Radiodiagnosis, King George's Medical University, Lucknow, Uttar Pradesh 226003, India; Department of Radiotherapy, King George's Medical University, Lucknow, Uttar Pradesh 226003, India
| | - Hari N Kushwaha
- Photobiology Laboratory, System Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Ajeet K Srivastava
- Photobiology Laboratory, System Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Saumya Srivastava
- Environmental Information System Centre, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India
| | - Naseem Jamal
- Department of Radiodiagnosis, King George's Medical University, Lucknow, Uttar Pradesh 226003, India
| | - Kriti Srivastava
- Department of Radiotherapy, King George's Medical University, Lucknow, Uttar Pradesh 226003, India
| | - Ratan Singh Ray
- Photobiology Laboratory, System Toxicology and Health Risk Assessment Group, Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India.
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Li D, Lin B, Yusuf N, Burns EM, Yu X, Luo D, Min W. Proteomic Analysis and Functional Studies of Baicalin on Proteins Associated with Skin Cancer. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2017; 45:599-614. [PMID: 28385077 DOI: 10.1142/s0192415x17500355] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Abundant evidence supports the key role of ultraviolet radiation (UVR) in skin cancer development. The human skin, especially the epidermal layer, is the main defense against UV radiation. Baicalin is a major bioactive component of Scutellaria baicalensis Georgi, a plant which has been found to exhibit antitumor activity. The anticarcinogenic mechanism of baicalin is not completely understood. We have reported that baicalin inhibited UVB-induced photo-damage and apoptosis in HaCaT cells (human skin keratinocytes). The aim of the present study is to investigate the cellular gene targets responsible for baicalin’s antitumor activity by performing two-dimensional electrophoresis liquid chromatography-mass spectrometry/mass spectrometry (2-DE LC-MS/MS) with HaCaT cells following UVB and baicalin exposure. Two-DE for protein separation was performed, followed by matrix-assisted laser desorption/ionization mass spectrometry and database searches. Nucleophosmin (NPM)-specific siRNA was designed and synthesized, and the small interfering RNA was transfected into skin squamous cancer A431 cells to knockdown the NPM expression. Proliferation and cell cycle status were assessed by CCK8 and flow cytometric analyses, respectively. We have identified 38 protein spots that are differentially expressed in HaCaT cells exposed to baicalin and/or UVB irradiation These proteins are involved in detoxification, proliferation, metabolism, cytoskeleton and motility. In particular, we found several proteins that have been linked to tumor progression and resistance, such as NPM. Baicalin treatment reduced the cellular proliferation rate and induced arrest during the S-phase of the cell cycle in A431 cells. NPM1 silencing significantly enhanced the effect of baicalin. Our data indicated that baicalin results in the significant inhibition of tumor growth in the A431 cell line, which may be associated with the regulation of the NPM gene expression.
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Affiliation(s)
- Dan Li
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Bingjiang Lin
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Nabiha Yusuf
- Department of Dermatology and Skin Diseases Research Center, University of Alabama at Birmingham, AL, USA
| | - Erin M. Burns
- Department of Dermatology and Skin Diseases Research Center, University of Alabama at Birmingham, AL, USA
| | - Xiuqin Yu
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Dan Luo
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Wei Min
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, P.R. China
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Kuanpradit C, Jaisin Y, Jungudomjaroen S, Akter Mitu S, Puttikamonkul S, Sobhon P, Cummins SF. Attenuation of UV-B exposure-induced inflammation by abalone hypobranchial gland and gill extracts. Int J Mol Med 2017; 39:1083-1090. [PMID: 28358420 PMCID: PMC5403342 DOI: 10.3892/ijmm.2017.2939] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Accepted: 02/02/2017] [Indexed: 11/06/2022] Open
Abstract
Exposure to solar ultraviolet B (UV-B) is a known causative factor for many skin complications such as wrinkles, black spots, shedding and inflammation. Within the wavelengths 280–320 nm, UV-B can penetrate to the epidermal level. This investigation aimed to test whether extracts from the tropical abalone [Haliotis asinina (H. asinina)] mucus-secreting tissues, the hypobranchial gland (HBG) and gills, were able to attenuate the inflammatory process, using the human keratinocyte HaCaT cell line. Cytotoxicity of abalone tissue extracts was determined using an AlamarBlue viability assay. Results showed that HaCaT cells could survive when incubated in crude HBG and gill extracts at concentrations between <11.8 and <16.9 μg/ml, respectively. Subsequently, cell viability was compared between cultured HaCaT cells exposed to serial doses of UV-B from 1 to 11 (x10) mJ/cm2 and containing 4 different concentrations of abalone extract from both the HBG and gill (0, 0.1, 2.5, 5 μg/ml). A significant increase in cell viability was observed (P<0.001) following treatment with 2.5 and 5 μg/ml extract. Without extract, cell viability was significantly reduced upon exposure to UV-B at 4 mJ/cm2. Three morphological changes were observed in HaCaT cells following UV-B exposure, including i) condensation of cytoplasm; ii) shrunken cells and plasma membrane bubbling; and iii) condensation of chromatin material. A calcein AM-propidium iodide live-dead assay showed that cells could survive cytoplasmic condensation, yet cell death occurred when damage also included membrane bubbling and chromatin changes. Western blot analysis of HaCaT cell COX-2, p38, phospho-p38, SPK/JNK and phospho-SPK/JNK following exposure to >2.5 μg/ml extract showed a significant decrease in intensity for COX-2, phospho-p38 and phospho-SPK/JNK. The present study demonstrated that abalone extracts from the HGB and gill can attenuate inflammatory proteins triggered by UV-B. Hence, the contents of abalone extract, including cellmetabolites and peptides, may provide new agents for skin anti-inflammation, preventing damage due to UV-B.
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Affiliation(s)
| | - Yamaratee Jaisin
- Faculty of Medicine, Srinakharinwirot University, Bangkok 10110, Thailand
| | | | - Shahida Akter Mitu
- Genecology Research Center, Faculty of Science, Health and Education, University of the Sunshine Coast, Maroochydore, DC, QLD 4558, Australia
| | | | - Prasert Sobhon
- Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Scott F Cummins
- Genecology Research Center, Faculty of Science, Health and Education, University of the Sunshine Coast, Maroochydore, DC, QLD 4558, Australia
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Igbiri S, Udowelle NA, Ekhator OC, Asomugha RN, Igweze ZN, Orisakwe OE. Polycyclic Aromatic Hydrocarbons In Edible Mushrooms from Niger Delta, Nigeria: Carcinogenic and Non-Carcinogenic Health Risk Assessment. Asian Pac J Cancer Prev 2017; 18:437-447. [PMID: 28345827 PMCID: PMC5454740 DOI: 10.22034/apjcp.2017.18.2.437] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
In the oil-rich Niger Delta, hydrocarbon pollution and oil spillages, gas flaring and sundry anthropogenic activities constitute sources of polycyclic aromatic hydrocarbons (PAHs), with food contamination playing a major role in human exposure. In this study we assessed PAH levels in wild and cultivated edible mushroom species consumed by the general population from the oil producing Niger Delta, Nigeria. The concentrations of USEPA-16 PAHs were determined by gas chromatography and carcinogenic and non-carcinogenic health risks were calculated. The concentrations of USEPA-16 PAHs ranged from 0.02 mg/kg – 3.37 mg/kg. The dietary intake of carcinogenic and non-carcinogenic USEPA-16 PAHs (Naphthalene, Acenaphthylene, Acenaphthene, Anthracene, Phenanthrene, Flourene, Flouranthene, Pyrene, Benzo[a]Anthracene, Chrysene, Benzo[a]Pyrene, Benzo[b]Flouranthene, Benzo[K]Flouranthene, Benzo[g, h, i]Perylene, Dibenz[a, h]Anthracene and Ideno[1,2,3-cd]Pyrene) for adults, adolescents and seniors ranged from 0.00 – 0.05 mg/kg/day, 0.00 – 0.06 mg/kg/day and 0.00 – 0.07 mg/kg/day. The BaPeq ranged from 0.02 – 2.76 with margin of exposure MOE values of BaP ranging from 3,500,000 to 700,000, 3,500,000 and 3,500,000 to 7,000,000 for adults, adolescents and seniors indicating very insignificant health risk. The incremental lifetime cancer risk was within the safe range of 1.56x10-8 – 1.73x10-6 with the highest calculated risk found for wild Pleurotus ostreatus mushroom species from the study area.
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Affiliation(s)
- Sorbari Igbiri
- Department of Experimental Pharmacology and Toxicology, Faculty of Pharmacy, University of Port-Harcourt, Rivers State, Nigeria.
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Ali D, Alarifi S, Alkahtani S, AlKahtane AA, Almalik A. Cerium Oxide Nanoparticles Induce Oxidative Stress and Genotoxicity in Human Skin Melanoma Cells. Cell Biochem Biophys 2016; 71:1643-51. [PMID: 25395198 DOI: 10.1007/s12013-014-0386-6] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Extensive applications of cerium oxide (CeO2) nanoparticles require a better understanding of their possible effects on human health. However, data demonstrating the effect of CeO2 nanoparticles on the human skin melanoma cell remain scanty. In the current study, we determined the mechanism through which CeO2 nanoparticles (APS <25 nm) induce toxicity in human skin melanoma cells (A375). The MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] and neutral red uptake assays showed concentration and time-dependent cytotoxicity of CeO2 nanoparticles in A375 cells. CeO2 nanoparticles significantly induced the generation reactive oxygen species (ROS) and malondialdehyde, superoxide dismutase, and decreased glutathione levels in A375 cells. It was also observed that the CeO2 nanoparticles induced chromosomal condensation and caspase-3 activity. CeO2 nanoparticles exposed cells revealed the formation of DNA double-strand breakage as measured by percent tail DNA and olive tail moment through comet assay. The decline of cell viability, production of ROS, and DNA damage in A375 cells specifies that CeO2 nanoparticles have less capable to induce cyto and genotoxicity.
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Affiliation(s)
- Daoud Ali
- Department of Zoology, College of Science, King Saud University, BOX 2454, Riyadh, 11451, Saudi Arabia.
| | - Saud Alarifi
- Department of Zoology, College of Science, King Saud University, BOX 2454, Riyadh, 11451, Saudi Arabia
| | - Saad Alkahtani
- Department of Zoology, College of Science, King Saud University, BOX 2454, Riyadh, 11451, Saudi Arabia
| | - Abdullah A AlKahtane
- Department of Zoology, College of Science, King Saud University, BOX 2454, Riyadh, 11451, Saudi Arabia
| | - Abdulaziz Almalik
- King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
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Differential cellular metabolite alterations in HaCaT cells caused by exposure to the aryl hydrocarbon receptor-binding polycyclic aromatic hydrocarbons chrysene, benzo[ a]pyrene and dibenzo[ a,l]pyrene. Toxicol Rep 2016; 3:763-773. [PMID: 28959603 PMCID: PMC5616077 DOI: 10.1016/j.toxrep.2016.09.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/22/2016] [Accepted: 09/09/2016] [Indexed: 01/02/2023] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous in the human environment. Since they are present in crude oilfractions used for the production of rubber and plastics, consumers may come into direct dermal contacts with these compounds (e.g., via tool handles) on a daily basis. Some individual PAHs are identified as genotoxic mutagens thereby prompting particular toxicological and environmental concern. Among this group, benzo[a]pyrene (BAP) constitutes a model carcinogen which is also used as reference compound for risk assessment purposes. It acts as a strong agonist of the aryl hydrocarbon receptor (AHR) and becomes metabolically activated toward mutagenic and carcinogenic intermediates by cytochrome P450-dependent monooxygenases (CYPs). While BAP has been exhaustively characterized with regard to its toxicological properties, there is much less information available for other PAHs. We treated an AHR-proficient immortal human keratinocyte cell line (i.e., HaCaT) with three selected PAHs: BAP, chrysene (CRY) and dibenzo[a,l]pyrene (DALP). Compound-mediated alterations of endogenous metabolites were investigated by an LC–MS/MS-based targeted approach. To examine AHR-dependent changes of the measured metabolites, AHR-deficient HaCaT knockdown cells (AHR-KD) were used for comparison. Our results reveal that 24 metabolites are sufficient to separate the PAH-exposed cells from untreated controls by application of a multivariate model. Alterations in the metabolomics profiles caused by each PAH show influences on the energy and lipid metabolism of the cells indicating reduced tricarboxylic acid (TCA) cycle activity and β-oxidation. Up-regulation of sphingomyelin levels after exposure to BAP and DALP point to pro-apoptotic processes caused by these two potent PAHs. Our results suggest that in vitro metabolomics can serve as tool to develop bioassays for application in hazard assessment.
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Key Words
- AAs, amino acids
- ACs, acyl carnitines
- AHR, aryl hydrocarbon receptor
- Aryl hydrocarbon receptor
- BAP, benzo[a]pyrene
- BAs, biogenic amines
- CRY, chrysene
- DALP, dibenzo[a,l]pyrene
- Keratinocytes
- LPCs, lysophosphatidylcholines
- Metabolomics
- PAHs, polycyclic aromatic hydrocarbons
- PCs, phosphatidylcholines
- Polycyclic aromatic hydrocarbons
- SMs, sphingomyelines
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Goyal S, Amar SK, Srivastav AK, Chopra D, Pal MK, Arjaria N, Ray RS. ROS mediated crosstalk between endoplasmic reticulum and mitochondria by Phloxine B under environmental UV irradiation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 161:284-94. [PMID: 27288659 DOI: 10.1016/j.jphotobiol.2016.05.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 05/16/2016] [Accepted: 05/31/2016] [Indexed: 11/25/2022]
Abstract
Phloxine B (PhB) is a most commonly used dye in cosmetic products throughout the world. It shows an absorption in visible and ultraviolet radiations. PhB was photodegraded within 4h of UV exposure. It generates reactive oxygen species (ROS) photochemically and intracellularly. Photosensitized PhB caused dose dependent cell viability reduction of human keratinocyte cell line (HaCaT) which was measured through MTT (75.4%) and NRU (77.3%) assays. It also induces cell cycle arrest and DNA damage. Photosensitized PhB induces Ca(2+) release from endoplasmic reticulum (ER). It causes the upregulation of ER stress marker genes ATF6 (1.79 fold) and CHOP (1.93 fold) at transcription levels. The similar response of ATF6 (3.6 fold) and CHOP (2.38 fold) proteins was recorded at translation levels. CHOP targeted the mitochondria and reduced the mitochondrial membrane potential analyzed through JC-1 staining. It further increases Bax/Bcl2 ratio (3.58 fold) and promotes the release of cytochrome c, finally leads to caspase-dependent apoptosis. Upregulation of APAF1 (1.79 fold) in PhB treated cells under UV B exposure supports the mitochondrial-mediated apoptotic cell death. The results support the involvement of ER and mitochondria in ROS mediated PhB phototoxicity. Therefore, the use of PhB in cosmetic products may be deleterious to users during sunlight exposure.
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Affiliation(s)
- Shruti Goyal
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR - Indian Institute of Toxicology Research (CSIR-IITR), M.G. Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), CSIR - IITR, Lucknow 226001, India
| | - Saroj Kumar Amar
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR - Indian Institute of Toxicology Research (CSIR-IITR), M.G. Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), CSIR - IITR, Lucknow 226001, India; Division of Forensic Science, School of Basic and Applied Science, Galgotias University, Uttar Pradesh, India
| | - Ajeet Kumar Srivastav
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR - Indian Institute of Toxicology Research (CSIR-IITR), M.G. Marg, Lucknow 226001, Uttar Pradesh, India
| | - Deepti Chopra
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR - Indian Institute of Toxicology Research (CSIR-IITR), M.G. Marg, Lucknow 226001, Uttar Pradesh, India
| | - Manish Kumar Pal
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR - Indian Institute of Toxicology Research (CSIR-IITR), M.G. Marg, Lucknow 226001, Uttar Pradesh, India
| | - Nidhi Arjaria
- Central Instrumentation Facility (TEM), CSIR - Indian Institute of Toxicology Research (CSIR-IITR), M.G. Marg, Lucknow 226001, Uttar Pradesh, India
| | - Ratan Singh Ray
- Photobiology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR - Indian Institute of Toxicology Research (CSIR-IITR), M.G. Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), CSIR - IITR, Lucknow 226001, India.
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Goyal S, Amar SK, Dwivedi A, Mujtaba SF, Kushwaha HN, Chopra D, Pal MK, Singh D, Chaturvedi RK, Ray RS. Photosensitized 2-amino-3-hydroxypyridine-induced mitochondrial apoptosis via Smac/DIABLO in human skin cells. Toxicol Appl Pharmacol 2016; 297:12-21. [DOI: 10.1016/j.taap.2016.02.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 02/12/2016] [Accepted: 02/25/2016] [Indexed: 01/21/2023]
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Xie D, Sun Y, Wang L, Li X, Zang C, Zhi Y, Sun L. Ultraviolet light-emitting diode irradiation-induced cell death in HL-60 human leukemia cells in vitro. Mol Med Rep 2016; 13:2506-10. [PMID: 26820261 PMCID: PMC4768973 DOI: 10.3892/mmr.2016.4812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 12/15/2015] [Indexed: 01/12/2023] Open
Abstract
Ultraviolet (UV) radiation is considered to be a potent cell-damaging agent in various cell lineages; however, the effect of UV light‑emitting diode (LED) irradiation on human cells remains unclear. The aim of the present study was to examine the effect of UV LED irradiation emitting at 280 nm on cultured HL‑60 human leukemia cells, and to explore the underlying mechanisms. HL‑60 cells were irradiated with UV LED (8, 15, 30 and 60 J/m2) and incubated for 2 h after irradiation. The rates of cell proliferation and apoptosis, the cell cycle profiles and the mRNA expression of B‑cell lymphoma 2 (Bcl‑2) were detected using cell counting kit‑8, multicaspase assays, propidium iodide staining and reverse transcription‑quantitative polymerase chain reaction, respectively. The results showed that UV LED irradiation (8‑60 J/m2) inhibited the proliferation of HL‑60 cells in a dose‑dependent manner. UV LED at 8‑30 J/m2 induced dose‑dependent apoptosis and G0/G1 cell cycle arrest, and inhibited the expression of Bcl‑2 mRNA, while UV LED at 60 J/m2 induced necrosis. In conclusion, 280 nm UV LED irradiation inhibits proliferation and induces apoptosis and necrosis in cultured HL‑60 cells. In addition, the cell cycle arrest at the G0/G1 phase and the downregulation of Bcl‑2 mRNA expression were shown to be involved in UV LED-induced apoptosis.
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Affiliation(s)
- Dong Xie
- Department of Pediatric Hematology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Yan Sun
- Department of Pediatric Hematology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Lingzhen Wang
- Department of Pediatric Hematology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Xiaoling Li
- Department of Pediatrics, People's Hospital of Linyi, Linyi, Shandong 276000, P.R. China
| | - Chuannong Zang
- Department of Pediatrics, Central Hospital of Wendeng, Weihai, Shandong 264400, P.R. China
| | - Yunlai Zhi
- Department of Pediatric Surgery, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Lirong Sun
- Department of Pediatric Hematology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
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Photoprotective efficiency of PLGA-curcumin nanoparticles versus curcumin through the involvement of ERK/AKT pathway under ambient UV-R exposure in HaCaT cell line. Biomaterials 2016; 84:25-41. [PMID: 26803409 DOI: 10.1016/j.biomaterials.2016.01.018] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 12/21/2015] [Accepted: 01/01/2016] [Indexed: 11/23/2022]
Abstract
Curcumin (Cur) has been demonstrated to have wide pharmacological window including anti-oxidant and anti-inflammatory properties. However, phototoxicity under sunlight exposure and poor biological availability limits its applicability. We have synthesized biodegradable and non-toxic polymer-poly (lactic-co-glycolic) acid (PLGA) encapsulated formulation of curcumin (PLGA-Cur-NPs) of 150 nm size range. Photochemically free curcumin generates ROS, lipid peroxidation and induces significant UVA and UVB mediated impaired mitochondrial functions leading to apoptosis/necrosis and cell injury in two different origin cell lines viz., mouse fibroblasts-NIH-3T3 and human keratinocytes-HaCaT as compared to PLGA-Cur-NPs. Molecular docking studies suggested that intact curcumin from nanoparticles, bind with BAX in BIM SAHB site and attenuate it to undergo apoptosis while upregulating anti-apoptotic genes like BCL2. Real time studies and western blot analysis with specific phosphorylation inhibitor of ERK1 and AKT1/2/3 confirm the involvement of ERK/AKT signaling molecules to trigger the survival cascade in case of PLGA-Cur-NPs. Our finding demonstrates that low level sustained release of curcumin from PLGA-Cur-NPs could be a promising way to protect the adverse biological interactions of photo-degradation products of curcumin upon the exposure of UVA and UVB. Hence, the applicability of PLGA-Cur-NPs could be suggested as prolonged radical scavenging ingredient in curcumin containing products.
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27
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Ali H, Dixit S, Ali D, Alkahtane AA, Alarifi S, Ali BA, Alkahtani S. Isolation and evaluation of biological efficacy of quercetol in human hepatic carcinoma cells. DRUG DESIGN DEVELOPMENT AND THERAPY 2016; 10:155-62. [PMID: 26792982 PMCID: PMC4708241 DOI: 10.2147/dddt.s95275] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Quercetol is a polyphenolic molecule present in vegetables and fruits, and is beneficial to human and animal health. The current work aimed to test cytotoxic and apoptotic effects of quercetol on HepG2 cells. Quercetol was isolated from Ocimum sanctum and characterized by gas chromatography–tandom mass spectrometry (GC-MS/MS), nuclear magnetic resonance spectroscopy, and Fourier transform infrared spectroscopy. Quercetol (50–600 μg/mL) was examined for cytotoxic activity by tetrazolium salt and neutral red uptake tests and comet assay for genotoxicity, using HepG2 cells, over 24 hours. Data from 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide and neutral red uptake tests demonstrated quercetol-induced cytotoxicity in HepG2 cells in a concentration-dependent manner. With 4′,6-diamidino-2-phenylindole staining, a significant induction of chromosomal condensation was observed at 300 μg/mL of quercetol. DNA fragmentation analysis showed that quercetol produced cell death in HepG2 cells in a concentration-dependent manner. Thus, our study suggests that an environmentally relevant concentration of quercetol, which was a chemically standardized extract from O. sanctum, induced cell death and DNA damage in HepG2 cells.
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Affiliation(s)
- Huma Ali
- Department of Chemistry, Maulana Azad National Institute of Technology, Bhopal, Madhya Pradesh, India
| | - Savita Dixit
- Department of Chemistry, Maulana Azad National Institute of Technology, Bhopal, Madhya Pradesh, India
| | - Daoud Ali
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abdullah A Alkahtane
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saud Alarifi
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Bahy A Ali
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia; Department of Nucleic Acids Research, Genetic Engineering and Biotechnology Research Institute, City Science Research and Technology Application, Alexandria, Egypt
| | - Saad Alkahtani
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
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Alarifi S, Ali D. Mechanisms of Multi-walled Carbon Nanotubes-Induced Oxidative Stress and Genotoxicity in Mouse Fibroblast Cells. Int J Toxicol 2015; 34:258-65. [PMID: 25998517 DOI: 10.1177/1091581815584799] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The extensive production and wide application of carbon nanotubes have made investigations of its toxic potentials necessary. In the present study, we explored the underlying mechanism through which multi-walled carbon nanotubes (MWCNTs) induce toxicity in mouse fibroblast cells (L929). 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and neutral red uptake viability assays were used to examine mechanisms of cytotoxicity. Dose and time-dependent cytotoxicity was observed in L929 cells. The MWCNTs significantly increased the generation of reactive oxygen species, lipid peroxidation, superoxide dismutase, and decreased glutathione. It was observed that the MWCNTs induced caspase 3 activity. The highest DNA strand breakage was detected by comet assay at 300 µg/mL of MWCNTs. Thus, the data indicate that MWCNTs induced cytotoxicity and apoptosis in L929 cells via oxidative stress.
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Affiliation(s)
- Saud Alarifi
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia Saud Alarifi and Daoud Ali contributed equally to this work
| | - Daoud Ali
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia Saud Alarifi and Daoud Ali contributed equally to this work
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29
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Lucas RM, Norval M, Neale RE, Young AR, de Gruijl FR, Takizawa Y, van der Leun JC. The consequences for human health of stratospheric ozone depletion in association with other environmental factors. Photochem Photobiol Sci 2015; 14:53-87. [DOI: 10.1039/c4pp90033b] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Ozone depletion, climate and human health.
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Affiliation(s)
- R. M. Lucas
- National Centre for Epidemiology and Population Health
- The Australian National University
- Canberra 2601
- Australia
- Telethon Kids Institute
| | - M. Norval
- Biomedical Sciences
- University of Edinburgh Medical School
- Edinburgh EH8 9AG
- UK
| | - R. E. Neale
- QIMR Berghofer Medical Research Institute
- Brisbane 4029
- Australia
| | - A. R. Young
- King's College London (KCL)
- St John's Institute of Dermatology
- London SE1 9RT
- UK
| | - F. R. de Gruijl
- Department of Dermatology
- Leiden University Medical Centre
- NL-2300 RC Leiden
- The Netherlands
| | - Y. Takizawa
- Akita University Graduate School of Medicine
- Akita Prefecture
- Japan
- National Institute for Minamata Diseases
- Kumamoto Prefecture
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30
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Mujtaba SF, Dwivedi A, Yadav N, Ch R, Kushwaha HN, Mudiam MKR, Singh G, Ray RS. Superoxide mediated photomodification and DNA damage induced apoptosis by Benz(a)anthracene via mitochondrial mediated pathway. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 142:92-102. [PMID: 25528193 DOI: 10.1016/j.jphotobiol.2014.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 11/08/2014] [Accepted: 11/24/2014] [Indexed: 11/18/2022]
Abstract
Benz(a)anthracene (BA) is an ubiquitous environmental pollutant of polycyclic aromatic hydrocarbon's (PAHs) family. We showed superoxide (O2(-)) catalyzed BA photo modification and apoptosis in HaCaT keratinocytes under sunlight exposure. O2(-) generation was confirmed by quenching through superoxide dismutase (SOD). BA induced photocytotoxicity were investigated through MTT and NRU assay. We proposed DNA insults such as single and double strand breakage and CPDs formation which results in cell cycle arrest and apoptosis by photosensitized BA. BA induced apoptosis was caspase dependent and occurred through a mitochondrial pathway. Reduction of mitochondrial membrane potential, translocation of Bax to mitochondria and cytochrome c release favors involvement of mitochondria in BA phototoxicity. AO/EB double staining and TEM analysis also support apoptotic cell death. We propose a p21 regulated apoptosis via expression of Bax, and cleaved PARP under sunlight exposure. Thus, we conclude that it is imperative to avoid solar radiation during peak hr (between 11A.M. and 3P.M.) when the amount of solar radiation is high, in the light of DNA damage which may lead to mutation or skin cancer through photosensitized BA under sunlight exposure. Concomitantly, investigation is urgently required for the photosafety of BA photoproducts reaching in the environment through photomodification.
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Affiliation(s)
- Syed Faiz Mujtaba
- Photobiology Division, CSIR - Indian Institute of Toxicology Research, India; College of Pharmacy, Faculty of Pharmaceutical Sciences, Pt. B.D.S University of Health Sciences, Rohtak, Haryana, India
| | - Ashish Dwivedi
- Photobiology Division, CSIR - Indian Institute of Toxicology Research, India
| | - Neera Yadav
- Photobiology Division, CSIR - Indian Institute of Toxicology Research, India; College of Pharmacy, Faculty of Pharmaceutical Sciences, Pt. B.D.S University of Health Sciences, Rohtak, Haryana, India
| | - Ratnasekhar Ch
- Analytical Chemistry, CSIR - Indian Institute of Toxicology Research, Post Box No. 80, M.G. Marg, Lucknow 226001, Uttar Pradesh, India
| | | | - Mohana K R Mudiam
- Analytical Chemistry, CSIR - Indian Institute of Toxicology Research, Post Box No. 80, M.G. Marg, Lucknow 226001, Uttar Pradesh, India
| | - Gajendra Singh
- College of Pharmacy, Faculty of Pharmaceutical Sciences, Pt. B.D.S University of Health Sciences, Rohtak, Haryana, India
| | - Ratan S Ray
- Photobiology Division, CSIR - Indian Institute of Toxicology Research, India.
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Kim KC, Piao MJ, Zheng J, Yao CW, Cha JW, Kumara MHSR, Han X, Kang HK, Lee NH, Hyun JW. Fucodiphlorethol G Purified from Ecklonia cava Suppresses Ultraviolet B Radiation-Induced Oxidative Stress and Cellular Damage. Biomol Ther (Seoul) 2014; 22:301-7. [PMID: 25143808 PMCID: PMC4131532 DOI: 10.4062/biomolther.2014.044] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/02/2014] [Accepted: 06/11/2014] [Indexed: 12/04/2022] Open
Abstract
Fucodiphlorethol G (6’-[2,4-dihydroxy-6-(2,4,6-trihydroxyphenoxy)phenoxy]biphenyl-2,2’,4,4’,6-pentol) is a compound purified from Ecklonia cava, a brown alga that is widely distributed offshore of Jeju Island. This study investigated the protective effects of fucodiphlorethol G against oxidative damage-mediated apoptosis induced by ultraviolet B (UVB) irradiation. Fucodiphlorethol G attenuated the generation of 2, 2-diphenyl-1-picrylhydrazyl radicals and intracellular reactive oxygen species in response to UVB irradiation. Fucodiphlorethol G suppressed the inhibition of human keratinocyte growth by UVB irradiation. Additionally, the wavelength of light absorbed by fucodiphlorethol G was close to the UVB spectrum. Fucodiphlorethol G reduced UVB radiation-induced 8-isoprostane generation and DNA fragmentation in human keratinocytes. Moreover, fucodiphlorethol G reduced UVB radiation-induced loss of mitochondrial membrane potential, generation of apoptotic cells, and active caspase-9 expression. Taken together, fucodiphlorethol G protected human keratinocytes against UVB radiation-induced cell damage and apoptosis by absorbing UVB radiation and scavenging reactive oxygen species.
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Affiliation(s)
- Ki Cheon Kim
- School of Medicine and Institute for Nuclear Science and Technology
| | - Mei Jing Piao
- School of Medicine and Institute for Nuclear Science and Technology
| | - Jian Zheng
- School of Medicine and Institute for Nuclear Science and Technology
| | - Cheng Wen Yao
- School of Medicine and Institute for Nuclear Science and Technology
| | - Ji Won Cha
- School of Medicine and Institute for Nuclear Science and Technology
| | | | - Xia Han
- School of Medicine and Institute for Nuclear Science and Technology
| | - Hee Kyoung Kang
- School of Medicine and Institute for Nuclear Science and Technology
| | - Nam Ho Lee
- Department of Chemistry, College of Natural Sciences, Jeju National University, Jeju 690-756, Republic of Korea
| | - Jin Won Hyun
- School of Medicine and Institute for Nuclear Science and Technology
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Photosensitized mefloquine induces ROS-mediated DNA damage and apoptosis in keratinocytes under ambient UVB and sunlight exposure. Cell Biol Toxicol 2014; 30:253-68. [PMID: 25034908 DOI: 10.1007/s10565-014-9280-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 06/12/2014] [Indexed: 10/25/2022]
Abstract
The present study illustrates the photosensitizing behavior of mefloquine (MQ) in human skin keratinocytes under ambient doses of UVB and sunlight exposure. Photochemically, MQ generated reactive oxygen species superoxide radical, hydroxyl radical, and singlet oxygen through type I and type II photodynamic reactions, respectively, which caused photooxidative damage to DNA and formed localized DNA lesions cyclobutane pyrimidine dimers. Photosensitized MQ reduced the viability of keratinocytes to 25 %. Significant level of intracellular reactive oxygen species (ROS) generation was estimated through fluorescence probe DCF-H2. Increased apoptotic cells were evident through AO/EB staining and phosphatidyl serine translocation in cell membrane. Single-stranded DNA damage was marked through single-cell gel electrophoresis. Mitochondrial membrane depolarization and lysosomal destabilization were evident. Upregulation of Bax and p21 and downregulation of Bcl-2 genes and corresponding protein levels supported apoptotic cell death of keratinocyte cells. Cyclobutane pyrimidine dimers (CPDs) were confirmed through immunofluorescence. In addition, hallmarks of apoptosis and G2/M phase cell cycle arrest were confirmed through flow cytometry analysis. Our findings suggest that MQ may damage DNA and produce DNA lesions which may induce differential biological responses in the skin on brief exposure to UVB and sunlight.
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33
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Single-walled carbon nanotubes induce cytotoxicity and DNA damage via reactive oxygen species in human hepatocarcinoma cells. In Vitro Cell Dev Biol Anim 2014; 50:714-22. [DOI: 10.1007/s11626-014-9760-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 04/07/2014] [Indexed: 10/25/2022]
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34
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Ray RS, Mujtaba SF, Dwivedi A, Yadav N, Verma A, Kushwaha HN, Amar SK, Goel S, Chopra D. Singlet oxygen mediated DNA damage induced phototoxicity by ketoprofen resulting in mitochondrial depolarization and lysosomal destabilization. Toxicology 2013; 314:229-37. [DOI: 10.1016/j.tox.2013.10.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 10/03/2013] [Accepted: 10/04/2013] [Indexed: 01/10/2023]
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35
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Liu D, Hu H, Lin Z, Chen D, Zhu Y, Hou S, Shi X. Quercetin deformable liposome: Preparation and efficacy against ultraviolet B induced skin damages in vitro and in vivo. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2013; 127:8-17. [DOI: 10.1016/j.jphotobiol.2013.07.014] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 07/10/2013] [Accepted: 07/11/2013] [Indexed: 10/26/2022]
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Mujtaba SF, Dwivedi A, Yadav N, Ray RS, Singh G. Singlet oxygen mediated apoptosis by anthrone involving lysosomes and mitochondria at ambient UV exposure. JOURNAL OF HAZARDOUS MATERIALS 2013; 252-253:258-271. [PMID: 23542321 DOI: 10.1016/j.jhazmat.2013.02.055] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 02/15/2013] [Accepted: 02/20/2013] [Indexed: 06/02/2023]
Abstract
Anthrone a tricyclic aromatic hydrocarbon which is toxic environmental pollutant comes in the environment through photooxidation of anthracene. We have studied the photomodification of anthrone under environmental conditions. Anthrone generates reactive oxygen species (ROS) like (1)O2 through Type-II photodynamic reaction. Significant intracellular ROS generation was measured through dichlorohydrofluorescein fluorescence intensity. The generation of (1)O2 was further substantiated by using specific quencher like sodium azide. UV induced photodegradation of 2-deoxyguanosine and photoperoxidation of linoleic acid accorded the involvement of (1)O2 in the manifestation of anthrone phototoxicity. Phototoxicity of anthrone was done on human keratinocytes (HaCaT) through 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide and neutral red uptake assays. Anthrone induced cell cycle arrest (G2/M-phase) and DNA damage in a concentration dependent manner. We found apoptosis as a pattern of cell death which was confirmed through sub-G1 fraction, morphological changes, caspase-3 activation, acridine orange/ethidium bromide staining and phosphatidylserine translocation. Mitochondrial depolarization and lysosomal destabilization was parallel to apoptotic process. Our RT-PCR results strongly supports our view point of apoptotic cell death through up-regulation of pro-apoptotic genes p21 and Bax, and down regulation of anti-apoptotic gene Bcl2. Therefore, much attention should be paid to concomitant exposure of anthrone and UV-R for its total environmental impact.
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Affiliation(s)
- Syed Faiz Mujtaba
- Photobiology Division, CSIR, Indian Institute of Toxicology Research, Post Box No 80, MG Marg, Lucknow 226001, Uttar Pradesh, India
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Yadav N, Dwivedi A, Mujtaba SF, Kushwaha HN, Singh SK, Ray RS. Ambient UVA-Induced Expression of p53 and Apoptosis in Human Skin Melanoma A375 Cell Line by Quinine. Photochem Photobiol 2013; 89:655-64. [DOI: 10.1111/php.12047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Accepted: 01/08/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Neera Yadav
- Photobiology Division; CSIR-Indian Institute of Toxicology Research; Lucknow; India
| | - Ashish Dwivedi
- Photobiology Division; CSIR-Indian Institute of Toxicology Research; Lucknow; India
| | - Syed Faiz Mujtaba
- Photobiology Division; CSIR-Indian Institute of Toxicology Research; Lucknow; India
| | - Hari Narayan Kushwaha
- Pharmacokinetics and Metabolism Division; CSIR-Central Drug Research Institute; Chhattar Manzil Palace; Lucknow; India
| | - Shio Kumar Singh
- Pharmacokinetics and Metabolism Division; CSIR-Central Drug Research Institute; Chhattar Manzil Palace; Lucknow; India
| | - Ratan Singh Ray
- Photobiology Division; CSIR-Indian Institute of Toxicology Research; Lucknow; India
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An ethanol extract derived from Bonnemaisonia hamifera scavenges ultraviolet B (UVB) radiation-induced reactive oxygen species and attenuates UVB-induced cell damage in human keratinocytes. Mar Drugs 2012; 10:2826-45. [PMID: 23242204 PMCID: PMC3528129 DOI: 10.3390/md10122826] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 11/30/2012] [Accepted: 12/05/2012] [Indexed: 01/24/2023] Open
Abstract
The present study investigated the photoprotective properties of an ethanol extract derived from the red alga Bonnemaisonia hamifera against ultraviolet B (UVB)-induced cell damage in human HaCaT keratinocytes. The Bonnemaisonia hamifera ethanol extract (BHE) scavenged the superoxide anion generated by the xanthine/xanthine oxidase system and the hydroxyl radical generated by the Fenton reaction (FeSO4 + H2O2), both of which were detected by using electron spin resonance spectrometry. In addition, BHE exhibited scavenging activity against the 1,1-diphenyl-2-picrylhydrazyl radical and intracellular reactive oxygen species (ROS) that were induced by either hydrogen peroxide or UVB radiation. BHE reduced UVB-induced apoptosis, as shown by decreased apoptotic body formation and DNA fragmentation. BHE also attenuated DNA damage and the elevated levels of 8-isoprostane and protein carbonyls resulting from UVB-mediated oxidative stress. Furthermore, BHE absorbed electromagnetic radiation in the UVB range (280–320 nm). These results suggest that BHE protects human HaCaT keratinocytes against UVB-induced oxidative damage by scavenging ROS and absorbing UVB photons, thereby reducing injury to cellular components.
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Kim KC, Piao MJ, Cho SJ, Lee NH, Hyun JW. Phloroglucinol protects human keratinocytes from ultraviolet B radiation by attenuating oxidative stress. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2012; 28:322-31. [DOI: 10.1111/phpp.12010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ki Cheon Kim
- School of Medicine and Applied Radiological Science Research Institute; Jeju National University; Jeju; Korea
| | - Mei Jing Piao
- School of Medicine and Applied Radiological Science Research Institute; Jeju National University; Jeju; Korea
| | - Suk Ju Cho
- School of Medicine and Applied Radiological Science Research Institute; Jeju National University; Jeju; Korea
| | - Nam Ho Lee
- Department of Chemistry, College of Natural Sciences; Jeju National University; Jeju; Korea
| | - Jin Won Hyun
- School of Medicine and Applied Radiological Science Research Institute; Jeju National University; Jeju; Korea
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