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Marek V, Potey A, Réaux-Le-Goazigo A, Reboussin E, Charbonnier A, Villette T, Baudouin C, Rostène W, Denoyer A, Mélik Parsadaniantz S. Blue light exposure in vitro causes toxicity to trigeminal neurons and glia through increased superoxide and hydrogen peroxide generation. Free Radic Biol Med 2019; 131:27-39. [PMID: 30496813 DOI: 10.1016/j.freeradbiomed.2018.11.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/22/2018] [Accepted: 11/22/2018] [Indexed: 01/08/2023]
Abstract
Today the noxiousness of blue light from natural and particularly artificial (fluorescent tubes, LED panels, visual displays) sources is actively discussed in the context of various ocular diseases. Many of them have an important neurologic component and are associated with ocular pain. This neuropathic signal is provided by nociceptive neurons from trigeminal ganglia. However, the phototoxicity of blue light on trigeminal neurons has not been explored so far. The aim of the present in vitro study was to investigate the cytotoxic impact of various wavebands of visible light (410-630 nm) on primary cell culture of mouse trigeminal neural and glial cells. Three-hour exposure to narrow wavebands of blue light centered at 410, 440 and 480 nm of average 1.1 mW/cm2 irradiance provoked cell death, altered cell morphology and induced oxidative stress and inflammation. These effects were not observed for other tested visible wavebands. We observed that neurons and glial cells processed the light signal in different manner, in terms of resulting superoxide and hydrogen peroxide generation, inflammatory biomarkers expression and phototoxic mitochondrial damage. We analyzed the pathways of photic signal reception, and we proposed that, in trigeminal cells, in addition to widely known mitochondria-mediated light absorption, light could be received by means of non-visual opsins, melanopsin (opn4) and neuropsin (opn5). We also investigated the mechanisms underlying the observed phototoxicity, further suggesting an important role of the endoplasmic reticulum in neuronal transmission of blue-light-toxic message. Taken together, our results give some insight into circuit of tangled pain and photosensitivity frequently observed in patients consulting for these ocular symptoms.
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Affiliation(s)
- V Marek
- R&D, Essilor International, Paris, France; Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France.
| | - A Potey
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | | | - E Reboussin
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | - A Charbonnier
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | - T Villette
- R&D, Essilor International, Paris, France
| | - C Baudouin
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France; Centre Hospitalier Nationale d'Ophtalmologie des Quinze-Vingts, Paris, France; Versailles-Saint-Quentin-en-Yvelines Université, Versailles, France
| | - W Rostène
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | - A Denoyer
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France; Centre Hospitalier Nationale d'Ophtalmologie des Quinze-Vingts, Paris, France; CHU Robert Debré, Université Reims Champagne-Ardenne, Reims, France
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Xu H, Wang X, Wang W. Functional suppression of macrophages derived from THP-1 cells by environmentally-relevant concentrations of arsenite. Comp Biochem Physiol C Toxicol Pharmacol 2018; 214:36-42. [PMID: 30189257 DOI: 10.1016/j.cbpc.2018.08.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 08/27/2018] [Accepted: 08/31/2018] [Indexed: 01/16/2023]
Abstract
Environmental exposure to arsenic is known to induce immunotoxicity. Macrophages are the professional phagocytes that are important in the immune system. In this study, we utilized the macrophages derived from the THP-1 human monocyte cell line as the experimental model to study the functional suppression induced by arsenite (As+3), one of the most prevalent forms of inorganic arsenic, at environmentally-relevant concentrations. Apoptosis was observed in the THP-1 derived macrophages treated with 500 nM As+3 for 18 h. Suppression of phagocytosis was induced by 18 h As+3 treatment starting from 100 nM. Suppressive effects on the production of two pro-inflammatory cytokines, IL-1β and TNF-α, were also found with the treatment of low to moderate doses of As+3 in lipopolysaccharides-stimulated THP-1 derived macrophages. The nitric oxide production was also inhibited by As+3 treatments, which was negatively correlated with the production of superoxide. Collectively, the results from the study demonstrated that environmentally-relevant concentrations of As+3 induced cytotoxicity and suppressed the major cellular functions in THP-1 derived macrophages. The macrophages were showed to be relatively sensitive to As+3, and could be the essential target of the toxicity induced by environmental arsenic exposures.
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Affiliation(s)
- Huan Xu
- East China University of Science and Technology, School of Pharmacy, Department of Pharmaceutical Sciences, Shanghai 200237, China; East China University of Science and Technology, State Key Laboratory of Bioreactor Engineering, Shanghai 200237, China.
| | - Xiaolei Wang
- East China University of Science and Technology, School of Pharmacy, Department of Pharmaceutical Sciences, Shanghai 200237, China
| | - Wei Wang
- East China University of Science and Technology, School of Pharmacy, Department of Pharmaceutical Sciences, Shanghai 200237, China; East China University of Science and Technology, State Key Laboratory of Bioreactor Engineering, Shanghai 200237, China; University of New Mexico, Department of Chemistry and Chemical Biology, Albuquerque, NM 87131, USA.
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3
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Tête A, Gallais I, Imran M, Chevanne M, Liamin M, Sparfel L, Bucher S, Burel A, Podechard N, Appenzeller BMR, Fromenty B, Grova N, Sergent O, Lagadic-Gossmann D. Mechanisms involved in the death of steatotic WIF-B9 hepatocytes co-exposed to benzo[a]pyrene and ethanol: a possible key role for xenobiotic metabolism and nitric oxide. Free Radic Biol Med 2018; 129:323-337. [PMID: 30268890 DOI: 10.1016/j.freeradbiomed.2018.09.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 09/20/2018] [Accepted: 09/26/2018] [Indexed: 12/15/2022]
Abstract
We previously demonstrated that co-exposing pre-steatotic hepatocytes to benzo[a]pyrene (B[a]P), a carcinogenic environmental pollutant, and ethanol, favored cell death. Here, the intracellular mechanisms underlying this toxicity were studied. Steatotic WIF-B9 hepatocytes, obtained by a 48h-supplementation with fatty acids, were then exposed to B[a]P/ethanol (10 nM/5 mM, respectively) for 5 days. Nitric oxide (NO) was demonstrated to be a pivotal player in the cell death caused by the co-exposure in steatotic hepatocytes. Indeed, by scavenging NO, CPTIO treatment of co-exposed steatotic cells prevented not only the increase in DNA damage and cell death, but also the decrease in the activity of CYP1, major cytochrome P450s of B[a]P metabolism. This would then lead to an elevation of B[a]P levels, thus possibly suggesting a long-lasting stimulation of the transcription factor AhR. Besides, as NO can react with superoxide anion to produce peroxynitrite, a highly oxidative compound, the use of FeTPPS to inhibit its formation indicated its participation in DNA damage and cell death, further highlighting the important role of NO. Finally, a possible key role for AhR was pointed out by using its antagonist, CH-223191. Indeed it prevented the elevation of ADH activity, known to participate to the ethanol production of ROS, notably superoxide anion. The transcription factor, NFκB, known to be activated by ROS, was shown to be involved in the increase in iNOS expression. Altogether, these data strongly suggested cooperative mechanistic interactions between B[a]P via AhR and ethanol via ROS production, to favor cell death in the context of prior steatosis.
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Affiliation(s)
- Arnaud Tête
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Isabelle Gallais
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Muhammad Imran
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Martine Chevanne
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Marie Liamin
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Lydie Sparfel
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Simon Bucher
- Univ Rennes, Inserm, Inra, Institut NUMECAN (Nutrition Metabolisms and Cancer) - UMR_S 1241, UMR_A 1341, F-35000 Rennes, France
| | - Agnès Burel
- Univ Rennes, Biosit - UMS 3480, US_S 018, F-35000 Rennes, France
| | - Normand Podechard
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Brice M R Appenzeller
- HBRU, Luxembourg Institute of Health, 29, rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg
| | - Bernard Fromenty
- Univ Rennes, Inserm, Inra, Institut NUMECAN (Nutrition Metabolisms and Cancer) - UMR_S 1241, UMR_A 1341, F-35000 Rennes, France
| | - Nathalie Grova
- HBRU, Luxembourg Institute of Health, 29, rue Henri Koch, L-4354 Esch-sur-Alzette, Luxembourg
| | - Odile Sergent
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - Dominique Lagadic-Gossmann
- Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France.
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Aldhaheri SR, Jeelani R, Kohan-Ghadr HR, Khan SN, Mikhael S, Washington C, Morris RT, Abu-Soud HM. Dimercapto-1-propanesulfonic acid (DMPS) induces metaphase II mouse oocyte deterioration. Free Radic Biol Med 2017; 112:445-451. [PMID: 28844937 DOI: 10.1016/j.freeradbiomed.2017.08.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/16/2017] [Accepted: 08/18/2017] [Indexed: 12/21/2022]
Abstract
In light of the recent lead contamination of the water in Flint, Michigan and its potential adverse outcomes, much research and media attention has turned towards the safety profile of commonly used chelators. Dimercapto-1-propanesulfonic acid (DMPS) typically used in the treatment of lead, mercury and arsenic poisoning also displays a high affinity towards transition metals such as zinc and copper, essential for biological functioning. It is given in series of dosages (0.2-0.4g/day) over a long period, and has the ability to enter cells. In this work, we investigated the mechanism through which increasing concentrations of DMPS alter oocyte quality as judged by changes in microtubule morphology (MT) and chromosomal alignment (CH) of metaphase II mice oocyte. The oocytes were directly exposed to increasing concentration of DMPS (10, 25, 50, 100 and 300μM) for four hours (time of peak plasma concentration after administration) and reactive oxygen species (mainly hydroxyl radical and superoxide) and zinc content were measured. This data showed DMPS plays an important role in deterioration of oocyte quality through a mechanism involving zinc deficiency and enhancement of reactive oxygen species a major contributor to oocyte damage. Our current work, for the first time, demonstrates the possibility of DMPS to negatively impact fertility. This finding can not only help in counseling reproductive age patients undergoing such treatment but also in the development of potential therapies to alleviate oxidative damage and preserve fertility in people receiving heavy metal chelators.
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Affiliation(s)
- Sarah R Aldhaheri
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Roohi Jeelani
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Hamid-Reza Kohan-Ghadr
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Sana N Khan
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Sasha Mikhael
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Christina Washington
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Robert T Morris
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA; Karmanos Cancer Institute, Detroit, MI 48201, USA
| | - Husam M Abu-Soud
- Department of Obstetrics and Gynecology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, Detroit, MI 48201, USA; Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, Detroit, MI 48201, USA.
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Cheng PW, Lin YT, Ho WY, Lu PJ, Chen HH, Lai CC, Sun GC, Yeh TC, Hsiao M, Tseng CJ, Liu CP. Fructose induced neurogenic hypertension mediated by overactivation of p38 MAPK to impair insulin signaling transduction caused central insulin resistance. Free Radic Biol Med 2017; 112:298-307. [PMID: 28754499 DOI: 10.1016/j.freeradbiomed.2017.07.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 07/20/2017] [Accepted: 07/22/2017] [Indexed: 10/19/2022]
Abstract
Type 2 diabetes are at a high risk of complications related to hypertension, and reports have indicated that insulin levels may be associated with blood pressure (BP). Fructose intake has recently been reported to promote insulin resistance and superoxide formation. The aim of this study is to investigate whether fructose intake can enhance superoxide generation and impair insulin signaling in the NTS and subsequently elevate BP in rats with fructose-induced hypertension. Treatment with fructose for 4 weeks increased the BP, serum fasting insulin, glucose, homeostatic model assessment-insulin resistance, and triglyceride levels and reduced the serum direct high-density lipoprotein level in the fructose group. The Tempol treatment recovered the fructose-induced decrease in nitric oxide production in the NTS. Immunoblotting and immunofluorescence analyses further showed that fructose increased the p38- and fructose-induced phosphorylation of insulin receptor substrate 1 (IRS1S307) and suppressed AktS473 and neuronal nitric oxide synthase phosphorylation. Similarly, fructose was able to impair insulin sensitivity and increase insulin levels in the NTS. Fructose intake also increased the production of superoxide in the NTS. The results of this study suggest that fructose might induce central insulin resistance and elevate BP by enhancing superoxide production and activating p38 phosphorylation in the NTS.
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Affiliation(s)
- Pei-Wen Cheng
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Yuh-Ing Junior College of Health Care & Management, Kaohsiung, Taiwan
| | - Yu-Te Lin
- Section of Neurology, Kaohsiung Veterans General Hospital, Taiwan; Center for Geriatrics and Gerontology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Wen-Yu Ho
- Division of General Internal Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Taiwan
| | - Pei-Jung Lu
- Institute of Clinical Medicine, National Cheng-Kung University, Tainan, Taiwan
| | - Hsin-Hung Chen
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Chi-Cheng Lai
- Department of Internal Medicine, Division of Cardiology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Gwo-Ching Sun
- Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tung-Chen Yeh
- Department of Internal Medicine, Division of Cardiology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Michael Hsiao
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Ching-Jiunn Tseng
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Pharmacology, National Defense Medical Center, Taipei, Taiwan
| | - Chun-Peng Liu
- Department of Administration, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Section of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
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Asghar W, Shafiee H, Velasco V, Sah VR, Guo S, El Assal R, Inci F, Rajagopalan A, Jahangir M, Anchan RM, Mutter GL, Ozkan M, Ozkan CS, Demirci U. Toxicology Study of Single-walled Carbon Nanotubes and Reduced Graphene Oxide in Human Sperm. Sci Rep 2016; 6:30270. [PMID: 27538480 PMCID: PMC4990966 DOI: 10.1038/srep30270] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 06/24/2016] [Indexed: 12/25/2022] Open
Abstract
Carbon-based nanomaterials such as single-walled carbon nanotubes and reduced graphene oxide are currently being evaluated for biomedical applications including in vivo drug delivery and tumor imaging. Several reports have studied the toxicity of carbon nanomaterials, but their effects on human male reproduction have not been fully examined. Additionally, it is not clear whether the nanomaterial exposure has any effect on sperm sorting procedures used in clinical settings. Here, we show that the presence of functionalized single walled carbon nanotubes (SWCNT-COOH) and reduced graphene oxide at concentrations of 1-25 μg/mL do not affect sperm viability. However, SWCNT-COOH generate significant reactive superoxide species at a higher concentration (25 μg/mL), while reduced graphene oxide does not initiate reactive species in human sperm. Further, we demonstrate that exposure to these nanomaterials does not hinder the sperm sorting process, and microfluidic sorting systems can select the sperm that show low oxidative stress post-exposure.
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Affiliation(s)
- Waseem Asghar
- Demirci BAMM Labs, Department of Radiology, Canary Center at Stanford for Cancer Early Detection, School of Medicine, Stanford University, Palo Alto 94304, CA
- Department of Computer Engineering & Electrical Engineering and Computer Science, Florida Atlantic University, Boca Raton 33432, FL
| | - Hadi Shafiee
- Demirci BAMM Labs, Division of Biomedical Engineering, Renal Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge 02139, MA
| | - Vanessa Velasco
- Demirci BAMM Labs, Division of Biomedical Engineering, Renal Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge 02139, MA
- Mechanical Engineering Department, University of Louisville, Louisville 40292, KY
| | - Vasu R. Sah
- Demirci BAMM Labs, Division of Biomedical Engineering, Renal Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge 02139, MA
| | - Shirui Guo
- Department of Electrical Engineering, University of California, Riverside 92521, CA
| | - Rami El Assal
- Demirci BAMM Labs, Department of Radiology, Canary Center at Stanford for Cancer Early Detection, School of Medicine, Stanford University, Palo Alto 94304, CA
| | - Fatih Inci
- Demirci BAMM Labs, Department of Radiology, Canary Center at Stanford for Cancer Early Detection, School of Medicine, Stanford University, Palo Alto 94304, CA
| | - Adhithi Rajagopalan
- Demirci BAMM Labs, Division of Biomedical Engineering, Renal Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge 02139, MA
| | - Muntasir Jahangir
- Demirci BAMM Labs, Division of Biomedical Engineering, Renal Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge 02139, MA
| | - Raymond M. Anchan
- Center for Infertility and Reproductive Surgery, Department of Obstetrics Gynecology and Reproductive Biology, Brigham and Women’s Hospital, Harvard Medical School, Boston 02115, MA
| | - George L. Mutter
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston 02115, MA
| | - Mihrimah Ozkan
- Department of Electrical Engineering, University of California, Riverside 92521, CA
| | - Cengiz S. Ozkan
- Department of Mechanical Engineering, University of California, Riverside 92521, CA
| | - Utkan Demirci
- Demirci BAMM Labs, Department of Radiology, Canary Center at Stanford for Cancer Early Detection, School of Medicine, Stanford University, Palo Alto 94304, CA
- Demirci BAMM Labs, Division of Biomedical Engineering, Renal Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge 02139, MA
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Pawar NN, Badgujar PC, Sharma LP, Telang AG, Singh KP. Oxidative impairment and histopathological alterations in kidney and brain of mice following subacute lambda-cyhalothrin exposure. Toxicol Ind Health 2016; 33:277-286. [PMID: 26989158 DOI: 10.1177/0748233715627736] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Lambda cyhalothrin (LCT), a broad-spectrum type II (α-cyano) synthetic pyrethroid pesticide, is widely employed in various agricultural and animal husbandry practices for the control of pests. Acute and chronic exposure to LCT can elicit several adverse effects including oxidative stress. With the objective to investigate nephrotoxicity and neurotoxicity of LCT in mice, we evaluated oxidative stress parameters and histological changes in the kidney and brain of LCT exposed mice. Swiss albino mice were divided randomly into four groups ( n = 6 per group) as: (A) corn oil/vehicle control; (B) 0.5 mg/kg body weight (b.w.) LCT; (C) 1 mg/kg b.w. LCT; (D) 2 mg/kg b.w. LCT. Mice were treated orally for 28 days. LCT exposure significantly increased serum urea nitrogen, creatinine and urea levels. LCT exposure also increased lipid peroxidation, superoxide anion generation, nitrite level and decreased the level of reduced glutathione. The activities of superoxide dismutase, catalase and glutathione- S-transferase were depleted significantly in both kidney and brain. Histological examination revealed marked histopathological changes in the kidney and brain of mice that were more pronounced at high dose of LCT. Thus, results of the present study indicate that 28 days oral exposure of LCT causes oxidative damage to the kidney and brain of mice which in turn could be responsible for nephrotoxicity and neurotoxicity. Nevertheless, further detailed studies are required to prove these effects especially after long-term exposure.
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Affiliation(s)
- Nitin Nanasaheb Pawar
- 1 Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, India
| | - Prarabdh Chandrakant Badgujar
- 1 Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, India
- 2 Department of Food Science and Technology, Food Toxicology Section, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonipat, Haryana, India
| | - Laxman Prasad Sharma
- 1 Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, India
| | - Avinash Gopal Telang
- 3 Toxicology Laboratory, Centre for Animal Disease Research and Diagnosis, Indian Veterinary Research Institute, Izatnagar, India
| | - Karam P Singh
- 4 Pathology Laboratory, Centre for Animal Disease Research and Diagnosis, Indian Veterinary Research Institute, Izatnagar, India
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Zhang J, Li X, Zhou L, Wang L, Zhou Q, Huang X. Analysis of effects of a new environmental pollutant, bisphenol A, on antioxidant systems in soybean roots at different growth stages. Sci Rep 2016; 6:23782. [PMID: 27030053 PMCID: PMC4815016 DOI: 10.1038/srep23782] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 03/14/2016] [Indexed: 12/28/2022] Open
Abstract
Bisphenol A (BPA) is an important industrial raw material. Because of its widespread use and increasing release into environment, BPA has become a new environmental pollutant. Previous studies about BPA's effects in plants focus on a certain growth stage. However, the plant's response to pollutants varies at different growth stages. Therefore, in this work, BPA's effects in soybean roots at different growth stages were investigated by determining the reactive oxygen species levels, membrane lipid fatty acid composition, membrane lipid peroxidation, and antioxidant systems. The results showed that low-dose BPA exposure slightly caused membrane lipid peroxidation but didn't activate antioxidant systems at the seedling stage, and this exposure did not affect above process at other growth stages; high-dose BPA increased reactive oxygen species levels and then caused membrane lipid peroxidation at all growth stages although it activated antioxidant systems, and these effects were weaker with prolonging the growth stages. The recovery degree after withdrawal of BPA exposure was negatively related to BPA dose, but was positively related to growth stage. Taken together, the effects of BPA on antioxidant systems in soybean roots were associated with BPA exposure dose and soybean growth stage.
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Affiliation(s)
- Jiazhi Zhang
- State Key Laboratory of Food Science and Technology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
- Jiangsu Coorperative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xingyi Li
- State Key Laboratory of Food Science and Technology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
- Jiangsu Coorperative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Li Zhou
- State Key Laboratory of Food Science and Technology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
- Jiangsu Coorperative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Lihong Wang
- State Key Laboratory of Food Science and Technology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
- Jiangsu Coorperative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Qing Zhou
- State Key Laboratory of Food Science and Technology, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
- Jiangsu Coorperative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xiaohua Huang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210046, China
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9
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Kopylchuk GP, Voloshchuk OM. Peculiarities of the free radical processes in rat liver mitochondria under toxic hepatitis on the background of alimentary protein deficiency. Ukr Biochem J 2016; 88:66-72. [PMID: 29227606 DOI: 10.15407/ubj88.02.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The rate of superoxide anion radical, hydroxyl radical and hydrogen peroxide generation, the level
of oxidative modification of mitochondrial proteins in the liver of rats with toxic hepatitis was investigated on
the background of alimentary protein deficiency. We did not find significant increases of the intensity of free
radical processes in liver mitochondria of rats maintained on the protein-deficient ration. The most significant
intensification of free radical processes in liver mitochondria is observed under the conditions of toxic hepatitis,
induced on the background of alimentary protein deprivation. Under these conditions the aggravation of
all studied forms of reactive oxygen species generation was observed in liver mitochondria. The generation
rates were increased as follows: O2 – by 1.7 times, Н2О2 – by 1.5 times, •ОН – practically double on the background
of accumulation of oxidized mitochondria-derived proteins. The established changes in thiol groups’
redox status of respiratory chain proteins insoluble in 0.05 M sodium-phosphate buffer (pH 11.5), and changes
of their carbonyl derivatives content may be considered as one of the regulatory factors of mitochondrial
energy-generating function.
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10
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Rodiño-Janeiro BK, Paradela-Dobarro B, Raposeiras-Roubín S, González-Peteiro M, González-Juanatey JR, Álvarez E. Glycated human serum albumin induces NF-κB activation and endothelial nitric oxide synthase uncoupling in human umbilical vein endothelial cells. J Diabetes Complications 2015; 29:984-92. [PMID: 26297216 DOI: 10.1016/j.jdiacomp.2015.07.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 07/10/2015] [Accepted: 07/11/2015] [Indexed: 11/28/2022]
Abstract
AIMS Non-enzymatic glycated proteins could mediate diabetes vascular complications, but the molecular mechanisms are unknown. Our objective was to find new targets involved in the glycated human serum albumin (gHSA)-enhanced extracellular reactive oxygen species (ROS) production in human endothelial cells. METHODS & RESULTS Some nuclear factors and phosphorylation cascades were analysed. gHSA activated nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), which up-regulated NOX4 and P22PHOX and enhanced ROS production. Pharmacological inhibition of NF-κB reversed gHSA-enhanced NOX4 expression and decreased gHSA-induced ROS production in extra- and intracellular spaces. The inhibition of activator protein-1 (AP-1) induced a rise in NOX4 and P22PHOX subunit expression and a down-regulation of endothelial nitric oxide synthase (eNOS). AP-1 inhibition also enhanced extracellular ROS production in the presence of serum albumin, but not with gHSA. These results were explained by the eNOS uncoupling induced by gHSA, also demonstrated in this study. Phosphatidylinositol 3-kinase or mitogen-activated protein kinase kinase 1/2 did not show to be involved in gHSA-induced ROS production. CONCLUSIONS All together, the results suggested that gHSA-enhanced ROS production in endothelium is mediated by: 1) NF-κB activation and subsequence up-regulation of NADPH oxidase, 2) eNOS uncoupling. AP-1, although is not directly affected by gHSA, is another target for regulating NADPH oxidase and eNOS expression in endothelial cells.
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Affiliation(s)
- Bruno K Rodiño-Janeiro
- Departamento de Medicina, Universidad de Santiago de Compostela; Servicio de Cardiología, Complejo Hospitalario Universitario de Santiago de Compostela and Instituto de Investigación Sanitaria de Santiago (IDIS), 15706 A Coruña, Spain
| | - Beatriz Paradela-Dobarro
- Departamento de Medicina, Universidad de Santiago de Compostela; Servicio de Cardiología, Complejo Hospitalario Universitario de Santiago de Compostela and Instituto de Investigación Sanitaria de Santiago (IDIS), 15706 A Coruña, Spain
| | - Sergio Raposeiras-Roubín
- Departamento de Medicina, Universidad de Santiago de Compostela; Servicio de Cardiología, Complejo Hospitalario Universitario de Santiago de Compostela and Instituto de Investigación Sanitaria de Santiago (IDIS), 15706 A Coruña, Spain
| | - Mercedes González-Peteiro
- Unidad de Medicina Materno-Fetal, Servicio de Obstetricia, Complejo Hospitalario Universitario de Santiago de Compostela, 15706 A Coruña, Spain
| | - José R González-Juanatey
- Departamento de Medicina, Universidad de Santiago de Compostela; Servicio de Cardiología, Complejo Hospitalario Universitario de Santiago de Compostela and Instituto de Investigación Sanitaria de Santiago (IDIS), 15706 A Coruña, Spain
| | - Ezequiel Álvarez
- Departamento de Medicina, Universidad de Santiago de Compostela; Servicio de Cardiología, Complejo Hospitalario Universitario de Santiago de Compostela and Instituto de Investigación Sanitaria de Santiago (IDIS), 15706 A Coruña, Spain.
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11
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Furukawa T, Sakamoto N, Suzuki M, Kimura M, Nagasawa H, Sakuda S. Precocene II, a Trichothecene Production Inhibitor, Binds to Voltage-Dependent Anion Channel and Increases the Superoxide Level in Mitochondria of Fusarium graminearum. PLoS One 2015; 10:e0135031. [PMID: 26248339 PMCID: PMC4527739 DOI: 10.1371/journal.pone.0135031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 07/16/2015] [Indexed: 02/07/2023] Open
Abstract
Precocene II, a constituent of essential oils, shows antijuvenile hormone activity in insects and inhibits trichothecene production in fungi. We investigated the molecular mechanism by which precocene II inhibits trichothecene production in Fusarium graminearum, the main causal agent of Fusarium head blight and trichothecene contamination in grains. Voltage-dependent anion channel (VDAC), a mitochondrial outer membrane protein, was identified as the precocene II-binding protein by an affinity magnetic bead method. Precocene II increased the superoxide level in mitochondria as well as the amount of oxidized mitochondrial proteins. Ascorbic acid, glutathione, and α-tocopherol promoted trichothecene production by the fungus. These antioxidants compensated for the inhibitory activity of precocene II on trichothecene production. These results suggest that the binding of precocene II to VDAC may cause high superoxide levels in mitochondria, which leads to stopping of trichothecene production.
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Affiliation(s)
- Tomohiro Furukawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Naoko Sakamoto
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Michio Suzuki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Makoto Kimura
- Department of Biological Mechanisms and Functions, Graduate School of Bioagricultural Sciences, Nagoya University, Aichi, Japan
| | - Hiromichi Nagasawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Shohei Sakuda
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- * E-mail:
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12
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Georges E, Lian J, Laberge R. A tamoxifen derivative, N,N-diethyl-2-[4-(phenylmethyl) phenoxy] ethanamine, selectively targets P-glycoprotein-positive multidrug resistant Chinese hamster cells. Biochem Pharmacol 2014; 90:107-14. [PMID: 24821111 DOI: 10.1016/j.bcp.2014.04.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/30/2014] [Accepted: 04/30/2014] [Indexed: 02/07/2023]
Abstract
DPPE, a tamoxifen derivative with antihistamine activity, was previously shown to potentiate the toxicity of chemotherapeutic drugs. Recently, a Phase III clinical study using doxorubicin with DPPE demonstrated significant increase in the overall survival of breast cancer patients. In this study we examined the effects of DPPE alone on the growth of drug sensitive and P-gp positive CHO cell line. Our results demonstrate DPPE is selectively toxic to P-gp positive cells and the sensitivity to DPPE alone correlated with the levels of P-gp expression. Moreover, in MDR cells, DPPE-induced apoptosis was significantly reduced with Bcl2 overexpression and in the presence of P-gp ATPase inhibitor, PSC833. Furthermore, knockdown of P-gp expression in MDR cells with P-gp-siRNA reversed DPPE sensitivity and increased their sensitivity to doxorubicin and taxol but not to cisplatin. The addition of DPPE to membrane fractions led to dose-dependent increase in P-gp ATPase that was inhibited with PSC833. Moreover, incubation of P-gp positive cells with DPPE led to a significant increase in superoxide levels and a drop in cellular ATP and GSH pools that were reversible with inhibitors of P-gp ATPase. The combined presence of DPPE and the mitochondria electron transport complex III inhibitor, antimycin A, synergized in their effects on the growth of MDR cells but had no effect on the growth of parental drug sensitive cells. Collectively, the results of this study provide a possible mechanism that may be relevant to the clinical results of DPPE in breast cancer trial and demonstrates DPPE as P-gp collateral sensitivity drug.
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Affiliation(s)
- Elias Georges
- Institute of Parasitology, McGill University, Macdonald Campus, Ste. Anne de Bellevue (Montreal), Quebec, Canada H9X-3V9.
| | - Jing Lian
- Institute of Parasitology, McGill University, Macdonald Campus, Ste. Anne de Bellevue (Montreal), Quebec, Canada H9X-3V9
| | - Remi Laberge
- Institute of Parasitology, McGill University, Macdonald Campus, Ste. Anne de Bellevue (Montreal), Quebec, Canada H9X-3V9
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Yamaguchi M, Kashiwakura I. Role of reactive oxygen species in the radiation response of human hematopoietic stem/progenitor cells. PLoS One 2013; 8:e70503. [PMID: 23936220 PMCID: PMC3723682 DOI: 10.1371/journal.pone.0070503] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Accepted: 06/20/2013] [Indexed: 01/10/2023] Open
Abstract
Hematopoietic stem/progenitor cells (HSPCs), which are present in small numbers in hematopoietic tissues, can differentiate into all hematopoietic lineages and self-renew to maintain their undifferentiated phenotype. HSPCs are extremely sensitive to oxidative stressors such as anti-cancer agents, radiation, and the extensive accumulation of reactive oxygen species (ROS). The quiescence and stemness of HSPCs are maintained by the regulation of mitochondrial biogenesis, ROS, and energy homeostasis in a special microenvironment called the stem cell niche. The present study evaluated the relationship between the production of intracellular ROS and mitochondrial function during the proliferation and differentiation of X-irradiated CD34+ cells prepared from human placental/umbilical cord blood HSPCs. Highly purified CD34+ HSPCs exposed to X-rays were cultured in liquid and semi-solid medium supplemented with hematopoietic cytokines. X-irradiated CD34+ HSPCs treated with hematopoietic cytokines, which promote their proliferation and differentiation, exhibited dramatically suppressed cell growth and clonogenic potential. The amount of intracellular ROS in X-irradiated CD34+ HSPCs was significantly higher than that in non-irradiated cells during the culture period. However, neither the intracellular mitochondrial content nor the mitochondrial superoxide production was elevated in X-irradiated CD34+ HSPCs compared with non-irradiated cells. Radiation-induced gamma-H2AX expression was observed immediately following exposure to 4 Gy of X-rays and gradually decreased during the culture period. This study reveals that X-irradiation can increase persistent intracellular ROS in human CD34+ HSPCs, which may not result from mitochondrial ROS due to mitochondrial dysfunction, and indicates that substantial DNA double-strand breakage can critically reduce the stem cell function.
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Affiliation(s)
- Masaru Yamaguchi
- Department of Radiological Life Sciences, Hirosaki University Graduate School of Health Sciences, Hirosaki, Aomori, Japan
| | - Ikuo Kashiwakura
- Department of Radiological Life Sciences, Hirosaki University Graduate School of Health Sciences, Hirosaki, Aomori, Japan
- * E-mail:
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14
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Duarte J, Andriambeloson E, Diebolt M, Andriantsitohaina R. Wine polyphenols stimulate superoxide anion production to promote calcium signaling and endothelial-dependent vasodilatation. Physiol Res 2004; 53:595-602. [PMID: 15588126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023] Open
Abstract
The present study was aimed to evaluate the mechanisms involved in the vasorelaxant effects of red wine polyphenol compounds (RWPC) in small mesenteric rat arteries. RWPC produce relaxation in small mesenteric arteries. This relaxant effect was abolished by endothelial denudation, NO-synthase blockade with L-NAME and partial depolarization with KCl or L-NAME plus KCl. Incubation with the reactive oxygen species scavenger, superoxide dismutase (SOD) plus catalase, or inhibition of NAD(P)H-dependent oxidoreductases with diphenyleneiodonium also inhibited RWPC induced vascular relaxation. Application of RWPC elicited a transient increase in intracellular calcium concentration ([Ca2+]i) in bovine aortic endothelial cells (BAEC), which was attenuated by a mixture of SOD and catalase. Incubation of BAEC with RWPC increased the SOD inhibitable production of O2-. These results suggest the involvement of O2- in the [Ca2+]i increase evoked by RWPC, leading to the activation of enzymes involved in the release of endothelial relaxant factors and subsequent vasodilatation of resistance arteries.
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Affiliation(s)
- J Duarte
- Laboratoire de Pharmacologie et Physico-Chimie des Interactions Cellulaires et Moléculaires, Université Pasteur de Strasbourg, CNRS, Faculté de Pharmacie, Illkirch, France
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Yamashita K, Lu H, Lu J, Chen G, Yokoyama T, Sagara Y, Manabe M, Kodama H. Effect of three triterpenoids, lupeol, betulin, and betulinic acid on the stimulus-induced superoxide generation and tyrosyl phosphorylation of proteins in human neutrophils. Clin Chim Acta 2002; 325:91-6. [PMID: 12367771 DOI: 10.1016/s0009-8981(02)00252-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND The roots of Anemone raddeana are used in Chinese folk medicine for curing rheumatism and neuralgia. METHODS The three triterpenoids lupeol, betulin and betulinic acid were isolated from ethanol extracts of the roots of A. raddeana. The effect of these triterpenoids on superoxide generation and tyrosyl phosphorylation of proteins in human neutrophils was investigated. RESULTS The superoxide generation induced by N-formyl-methionyl-leucyl-phenylalanine (fMLP) was significantly suppressed by betulin and lupeol depending on the concentration of the triterpenoids. The suppressive effect of betulinic acid was low. The phorbol 12-myristate 13-acetate (PMA)-induced superoxide generation was suppressed by betulin in a concentration-dependent manner, but not by lupeol and betulinic acid. In contrast, the superoxide generation induced by arachidonic acid (AA) was suppressed by lupeol, while betulin and betulinic acid weakly enhanced the AA-induced superoxide generation. Lupeol and betulin suppressed tyrosyl phosphorylation of a 45.0-kDa protein in fMLP-treated human neutrophils in parallel to the suppression of fMLP-induced superoxide generation, but betulinic acid did not. Lupeol, betulin and betulinic acid showed no hemolytic effect even at a concentration of 500 micromol/l. CONCLUSIONS Lupeol and betulin suppress superoxide generation by preventing tyrosyl phosphorylation of a 45.0-kDa protein in human neutrophils, and may have pharmaceutical applications.
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Affiliation(s)
- Koichi Yamashita
- Department of Anesthesiology and Resuscitology, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi 783-8505, Japan
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Abstract
The peptides for-Met-Ser-Phe-OMe 1, for-Met-Cys-Phe-OMe 2, for-Met-Lys-Phe-OMe 3, and for-Met-Tyr-Phe-OMe 4 were synthesized in order to investigate the importance of a hydrophilic side-chain on the residue at position 2 on biological activities of human neutrophils. Our results seem to highlight that this type of substitution does not facilitate good chemotaxis, although it elicits both superoxide anion production and particularly lysozyme release, in some cases even more potent than the parent fMLP-OMe, if the hydrophilicity is associated with steric hindrance.
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Affiliation(s)
- G Cavicchioni
- Department of Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy.
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