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Moreli JB, Santos MRD, Calderon IDMP, Hebeda CB, Farsky SHP, Bevilacqua E, Oliani SM. The Role of Annexin A1 in DNA Damage Response in Placental Cells: Impact on Gestational Diabetes Mellitus. Int J Mol Sci 2023; 24:10155. [PMID: 37373303 DOI: 10.3390/ijms241210155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
The functions of annexin A1 (ANXA1), which is expressed on membranes and in cytoplasmic granules, have been fully described. Nonetheless, the role of this protein in protecting against DNA damage in the nucleus is still emerging and requires further investigation. Here, we investigated the involvement of ANXA1 in the DNA damage response in placental cells. Placenta was collected from ANXA1 knockout mice (AnxA1-/-) and pregnant women with gestational diabetes mellitus (GDM). The placental morphology and ANXA1 expression, which are related to the modulation of cellular response markers in the presence of DNA damage, were analyzed. The total area of AnxA1-/- placenta was smaller due to a reduced labyrinth zone, enhanced DNA damage, and impaired base excision repair (BER) enzymes, which resulted in the induction of apoptosis in the labyrinthine and junctional layers. The placentas of pregnant women with GDM showed reduced expression of AnxA1 in the villous compartment, increased DNA damage, apoptosis, and a reduction of enzymes involved in the BER pathway. Our translational data provide valuable insights into the possible involvement of ANXA1 in the response of placental cells to oxidative DNA damage and represent an advancement in investigations into the mechanisms involved in placental biology.
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Affiliation(s)
- Jusciele Brogin Moreli
- Post-Graduation in Structural and Functional Biology, Federal University of São Paulo (UNIFESP), São Paulo 04023-062, Brazil
- Faceres School of Medicine (FACERES), São José do Rio Preto 15090-305, Brazil
| | - Mayk Ricardo Dos Santos
- Department of Biology, School of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto 15054-000, Brazil
| | - Iracema de Mattos Paranhos Calderon
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, Brazil
| | - Cristina Bichels Hebeda
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of Sao Paulo (USP), São Paulo 05508-000, Brazil
| | - Sandra Helena Poliselli Farsky
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of Sao Paulo (USP), São Paulo 05508-000, Brazil
| | - Estela Bevilacqua
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo 05508-000, Brazil
| | - Sonia Maria Oliani
- Post-Graduation in Structural and Functional Biology, Federal University of São Paulo (UNIFESP), São Paulo 04023-062, Brazil
- Department of Biology, School of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto 15054-000, Brazil
- Advanced Research Center in Medicine (CEPAM), União das Faculdades dos Grandes Lagos (Unilago), São José do Rio Preto 15030-070, Brazil
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Hebeda CB, Savioli AC, Scharf P, de Paula-Silva M, Gil CD, Farsky SHP, Sandri S. Neutrophil depletion in the pre-implantation phase impairs pregnancy index, placenta and fetus development. Front Immunol 2022; 13:969336. [PMID: 36248911 PMCID: PMC9558710 DOI: 10.3389/fimmu.2022.969336] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Maternal neutrophils cells are players in gestational tolerance and fetus delivery. Nonetheless, their actions in each phase of the pregnancy are unknown. We here investigated the role of maternal neutrophil depletion before the blastocyst implantation phase and outcomes in the pregnancy index, placenta, and fetus development. Neutrophils were pharmacologically depleted by i.p. injection of anti-Gr1 (anti-neutrophils; 200 µg) 24 hours after plug visualization in allogeneic-mated C57BL/6/BALB/c mice. Depletion of peripheral neutrophils lasted until 48 hours after anti-Gr1 injection (gestational day 1.5-3.5). On gestational day 5.5, neutrophil depletion impaired the blastocyst implantation, as 50% of pregnant mice presented reduced implantation sites. On gestational day 18.5, neutrophil depletion reduced the pregnancy rate and index, altered the placenta disposition in the uterine horns, and modified the structure of the placenta, detected by reduced junctional zone, associated with decreased numbers of giant trophoblast cells, spongiotrophoblast. Reduced number of placenta cells labeled for vascular endothelial growth factor (VEGF), platelet-endothelial cell adhesion molecule (PECAM-1), and intercellular cell adhesion molecule (ICAM-1), important markers of angiogenesis and adhesiveness, were detected in neutrophil depleted mice. Furthermore, neutrophil depletion promoted a higher frequency of monocytes, natural killers, and T regulatory cells, and lower frequency of cytotoxic T cells in the blood, and abnormal development of offspring. Associated data obtained herein highlight the pivotal role of neutrophils actions in the early stages of pregnancy, and address further investigations on the imbricating signaling evoked by neutrophils in the trophoblastic interaction with uterine epithelium.
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Affiliation(s)
- Cristina Bichels Hebeda
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, SP, São Paulo, Brazil
- Núcleo de Pesquisa em Ciências Médicas, Fundação Universidade para o Desenvolvimento do Alto Vale do Itajaí – UNIDAVI, Rio do Sul, SC, Brazil
| | - Anna Carolina Savioli
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, SP, São Paulo, Brazil
| | - Pablo Scharf
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, SP, São Paulo, Brazil
| | - Marina de Paula-Silva
- Center for Stem Cells and Regenerative Medicine, King’s College London, London, United Kingdom
| | - Cristiane Damas Gil
- Department of Morphology and Genetics, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Sandra Helena Poliselli Farsky
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, SP, São Paulo, Brazil
| | - Silvana Sandri
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, SP, São Paulo, Brazil
- *Correspondence: Silvana Sandri,
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Andrade FDO, Furtado KS, Heidor R, Sandri S, Hebeda CB, Miranda MLP, Fernandes LHG, Yamamoto RC, Horst MA, Farsky SHP, Moreno FS. Antiangiogenic effects of the chemopreventive agent tributyrin, a butyric acid prodrug, during the promotion phase of hepatocarcinogenesis. Carcinogenesis 2020; 40:979-988. [PMID: 30590392 DOI: 10.1093/carcin/bgy190] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 12/04/2018] [Accepted: 12/21/2018] [Indexed: 12/19/2022] Open
Abstract
Agents that inhibit angiogenic factors may prevent the development of hepatocellular carcinoma (HCC). Thus, the objective of this study was to kinetically evaluate the antiangiogenic activity of tributyrin (TB), a butyric acid prodrug, in the promotion stage of hepatocarcinogenesis. For this purpose, the resistant hepatocyte (RH) model was used for induction of preneoplastic lesions in Wistar rats. During the promotion phase, the animals received TB or maltodextrin (MD) as control daily. The rats were killed at three time-points (P1, P2 and P3). Increased expression of Vegfa and Vegfr2 was observed during promotion phase of hepatocarcinogenesis, which was not reversed by TB treatment. However, TB treatment reduced the expression of cluster of differentiation (CD) 34-positive vessels at P3 and α-smooth muscle actin (α-SMA)-positive vessels at P2 compared with MD. Enhanced levels of hypoxia inducible factor-1α (HIF-1α) and phosphorylated extracellular signal-regulated kinases (pERK) were detected at P3 when compared with P1 and P2 in the MD treatment. TB treatment reduced the levels of HIF-1α and pERK at P3 relative to the MD control. Experiments with human umbilical vein endothelial cells (HUVEC) showed that sodium butyrate (NaBu) inhibited cell migration and tube formation, confirming the antiangiogenic activity of its prodrug TB. In conclusion, antiangiogenic activity of TB is an early event that already occurs in preneoplastic livers, reinforcing its potential chemopreventive effects against HCC.
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Affiliation(s)
- Fabia de Oliveira Andrade
- Laboratory of Diet, Nutrition and Cancer, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil
| | - Kelly Silva Furtado
- Laboratory of Diet, Nutrition and Cancer, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil
| | - Renato Heidor
- Laboratory of Diet, Nutrition and Cancer, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil
| | - Silvana Sandri
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Cristina Bichels Hebeda
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Mayara Lilian Paulino Miranda
- Laboratory of Diet, Nutrition and Cancer, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil
| | - Laura Helena Gasparini Fernandes
- Laboratory of Diet, Nutrition and Cancer, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil
| | - Roberto Carvalho Yamamoto
- Laboratory of Diet, Nutrition and Cancer, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil
| | - Maria Aderuza Horst
- Laboratory of Diet, Nutrition and Cancer, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil
| | - Sandra Helena Poliselli Farsky
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Fernando Salvador Moreno
- Laboratory of Diet, Nutrition and Cancer, Department of Food and Experimental Nutrition, University of São Paulo, São Paulo, Brazil
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Sandri S, Hebeda CB, Loiola RA, Calgaroto S, Uchiyama MK, Araki K, Frank LA, Paese K, Guterres SS, Pohlmann AR, Farsky SHP. Direct effects of poly(ε-caprolactone) lipid-core nanocapsules on human immune cells. Nanomedicine (Lond) 2019; 14:1429-1442. [DOI: 10.2217/nnm-2018-0484] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Aim: Poly(ε-caprolactone) lipid-core nanocapsules (LNCs) are efficient drug carriers and drug-free LNCs display therapeutic effects, inhibiting tumor growth and neutrophil activities. Herein, we investigated the direct actions of LNCs on human immune cells, to guide their therapeutic application. Materials & methods: LNC’s uptake, cytokine release, cell migration, proliferation and intracellular pathways under inflammatory stimulation were investigated. Results & conclusion: LNCs quickly penetrated leukocytes without cytotoxicity; inhibited mitogen-induced lymphocyte proliferation, cytokine release and leukocyte migration under inflammatory stimulation, which were associated with inhibition of the MAP kinase pathway and intracellular calcium influx. Hence, we showed LNCs as a down-regulatory agent on immune cells, suggesting that either the particles themselves or their application as a drug carrier can halt non-desired inflammatory processes.
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Affiliation(s)
- Silvana Sandri
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, Brazil
| | - Cristina Bichels Hebeda
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, Brazil
| | - Rodrigo Azevedo Loiola
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, Brazil
| | - Selma Calgaroto
- Department of Organic Chemistry, Postgraduate Program in Chemistry, Institute of Chemistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Mayara Klimuk Uchiyama
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Brazil
| | - Koiti Araki
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Brazil
| | - Luiza Abrahão Frank
- Department of Production and Control of Pharmaceutics; Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Brazil
| | - Karina Paese
- Department of Organic Chemistry, Postgraduate Program in Chemistry, Institute of Chemistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- Department of Production and Control of Pharmaceutics; Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Brazil
| | - Silvia Stanisçuaski Guterres
- Department of Production and Control of Pharmaceutics; Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Brazil
| | - Adriana Raffin Pohlmann
- Department of Organic Chemistry, Postgraduate Program in Chemistry, Institute of Chemistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- Department of Production and Control of Pharmaceutics; Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Brazil
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Rodrigues da Silva M, Schapochnik A, Peres Leal M, Esteves J, Bichels Hebeda C, Sandri S, Pavani C, Ratto Tempestini Horliana AC, Farsky SHP, Lino-dos-Santos-Franco A. Beneficial effects of ascorbic acid to treat lung fibrosis induced by paraquat. PLoS One 2018; 13:e0205535. [PMID: 30395570 PMCID: PMC6218022 DOI: 10.1371/journal.pone.0205535] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [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: 08/01/2018] [Accepted: 09/20/2018] [Indexed: 01/08/2023] Open
Abstract
Paraquat (PQ) is one of the most widely employed herbicides that is used worldwide and it causes severe toxic effects in humans and animals. A PQ exposition can lead to pulmonary fibrosis (PF) and the mechanisms seem to be linked to oxidative stress, although other pathways have been suggested. Antioxidants can be useful as a therapy, although interventions with this kind of system are still controversial. Hence, this study has investigated the role of ascorbic acid (vitamin C) post-treatment on PQ-induced PF in male C57/BL6 mice. Pulmonary fibrosis was induced by a single PQ injection (10mg/kg; i.p.). The control group received a PQ vehicle. Seven days after the PQ or vehicle injections, the mice received vitamin C (150 mg/kg, ip, once a day) or the vehicle, over the following 7 days. Twenty-four hours after the last dose of vitamin C or the vehicle, the mice were euthanized and their bronchoalveolar lavage fluid (BALF) and their lungs were collected. The data obtained showed that vitamin C reduced the cellular recruitment, the secretion of IL-17 –a cytokine involved in neutrophils migration, TGF-β–a pro-fibrotic mediator and the collagen deposition. Moreover, vitamin C elevated the superoxide dismutase (SOD) and catalase levels, both antioxidant enzymes, but it did not alter the tracheal contractile response that was evoked by methacholine. Therefore, the researchers have highlighted the mechanisms of vitamin C as being non-invasive and have suggested it as a promising tool to treat lung fibrosis when it is induced by a PQ intoxication.
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Affiliation(s)
- Marcia Rodrigues da Silva
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Adriana Schapochnik
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Mayara Peres Leal
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Janete Esteves
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Cristina Bichels Hebeda
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Silvana Sandri
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil, Brazil
| | - Christiane Pavani
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | | | - Sandra H. P. Farsky
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil, Brazil
| | - Adriana Lino-dos-Santos-Franco
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
- * E-mail:
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6
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Schapochnik A, da Silva MR, Leal MP, Esteves J, Hebeda CB, Sandri S, de Fátima Teixeira da Silva D, Farsky SHP, Marcos RL, Lino-Dos-Santos-Franco A. Vitamin D treatment abrogates the inflammatory response in paraquat-induced lung fibrosis. Toxicol Appl Pharmacol 2018; 355:60-67. [PMID: 29944852 DOI: 10.1016/j.taap.2018.06.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/21/2018] [Accepted: 06/22/2018] [Indexed: 12/31/2022]
Abstract
A high incidence of intentional or accidental paraquat (PQ) ingestion is related to irreversible lung fibrosis and no effective therapy is currently available. Vitamin D has emerged with promising results as an immunomodulatory molecule when abrogating the inflammatory responses of lung diseases. Therefore, we have investigated the role of vitamin D treatments on PQ-induced lung fibrosis in male C57/BL6 mice. Lung fibrosis was induced by a single injection of PQ (10 mg/kg; i.p.). The control group received PQ vehicle. Seven days later, after the PQ injection or the vehicle injection, the mice received vitamin D (5 μg/kg, i.p., once a day) or vehicle, for a further 7 days. Twenty-four hours after the last dose of vitamin D or the vehicle, the analysis were performed. The vitamin D treatments reduced the number of leukocytes in their BALF and they decreased the IL-6, IL-17, TGF-beta and MMP-9 levels and the abrogated collagenase deposits in their lung tissues. Conversely, the vitamin D treatments increased the resolvin D levels in their BALF. Moreover, their tracheal contractility was also significantly reduced by the vitamin D treatments. Altogether, the data that was obtained showed a promising use of vitamin D, in treating the lung fibrosis that had been induced by the PQ intoxications. This may improve its prognostic use for a non-invasive and low cost therapy.
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Affiliation(s)
- Adriana Schapochnik
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Marcia Rodrigues da Silva
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Mayara Peres Leal
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Janete Esteves
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Cristina Bichels Hebeda
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Silvana Sandri
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Sandra Helena Poliseli Farsky
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Rodrigo Labat Marcos
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Adriana Lino-Dos-Santos-Franco
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil.
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Hebeda CB, Pinedo FJ, Bolonheis SM, Ferreira ZF, Muscará MN, Teixeira SA, Farsky SHP. Intracellular mechanisms of hydroquinone toxicity on endotoxin-activated neutrophils. Arch Toxicol 2012; 86:1773-81. [PMID: 22717997 DOI: 10.1007/s00204-012-0886-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Accepted: 05/30/2012] [Indexed: 11/28/2022]
Abstract
Circulating neutrophils promptly react to different substances in the blood and orchestrate the beginning of the innate inflammatory response. We have shown that in vivo exposure to hydroquinone (HQ), the most oxidative compound of cigarette smoke and a toxic benzene metabolite, affects circulating neutrophils, making them unresponsive to a subsequent bacterial infection. In order to understand the action of toxic molecular mechanisms on neutrophil functions, in vitro HQ actions on pro-inflammatory mediator secretions evoked by Escherichia coli lipopolysaccharide (LPS) were investigated. Neutrophils from male Wistar rats were cultured with vehicle or HQ (5 or 10 μM; 2 h) and subsequently incubated with LPS (5 μg/ml; 18 h). Hydroquinone treatment impaired LPS-induced nitric oxide (NO), tumour necrosis factor α (TNF-α), interleukin (IL)-1β and IL-6 secretions by neutrophils. The toxic effect was not dependent on cell death, reduced expression of the LPS receptor or toll-like receptor-4 (TLR-4) or cell priming, as HQ did not induce reactive oxygen species generation or β(2)integrin membrane expression. The action of toxic mechanisms on cytokine secretion was dependent on reduced gene synthesis, which may be due to decreased nuclear factor κB (NF-κB) nuclear translocation. Conversely, this intracellular pathway was not involved in impaired NO production because HQ treatments only affected inducible nitric oxide synthase protein expression and activity, suggesting posttranscriptional and/or posttranslational mechanisms of action. Altogether, our data show that HQ alters the action of different LPS-activated pathways on neutrophils, which may contribute to the impaired triggering of the host innate immune reaction detected during in vivo HQ exposure.
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Affiliation(s)
- Cristina Bichels Hebeda
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, Sao Paulo, SP, Brazil
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Shimada ALB, Ribeiro ALT, Bolonheis SM, Ferraz-de-Paula V, Hebeda CB, Farsky SHP. In vivo hydroquinone exposure impairs MCP-1 secretion and monocyte recruitment into the inflamed lung. Toxicology 2012; 296:20-6. [PMID: 22465845 DOI: 10.1016/j.tox.2012.02.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Revised: 02/04/2012] [Accepted: 02/24/2012] [Indexed: 01/13/2023]
Abstract
Alveolar macrophages (AMs) are important cells in the resolution of the inflammatory process and they come into direct contact with inhaled pollutants. Hydroquinone (HQ) is an environmental pollutant and a component of cigarette smoke that causes immunosuppressive effects. In the present work, we showed that mice exposed to low levels of aerosolized HQ (25 ppm; 1 h/day/5 days) presented impaired mononuclear cell migration to the lipopolysaccharide (LPS)-inflamed lung. This may have been due to reduced monocyte chemoattractant protein-1 (MCP-1) secretion into bronchoalveolar lavage fluid (BALF), and it was not related to alterations to mononuclear cell mobilization into the blood or adhesion molecules expression on mononuclear cell membranes. Corroborating the actions of HQ on MCP-1 secretion, reduced MCP-1 concentrations were also found in the supernatant of ex vivo AM and tracheal tissue collected from HQ-exposed mice. A direct action of HQ on MCP-1 secretion, resulting from impaired gene synthesis, was verified by in vitro incubation of naive AMs or tracheal tissue with HQ. The role of reduced levels of MCP-1 in the BALF on monocyte migration was analysed in the human monocytic lineage THP-1 in in vitro chemotaxis assays, which showed that the reduced concentrations of MCP-1 found in the BALF or cell supernatants from HQ-exposed mice impaired cell migration. Considering the fact that MCP-1 presents a broad spectrum of actions on pathophysiological conditions and that resident mononuclear cells are involved in lung tissue homeostasis and in immune host defence, the mechanism of HQ toxicity presented herein might be relevant to the genesis of infectious lung diseases in smokers and in inhabitants of polluted areas.
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Affiliation(s)
- Ana Lúcia Borges Shimada
- Laboratory of Experimental Toxicology, Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Brazil
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Hebeda CB, Pinedo FJ, Vinolo MAR, Curi R, Farsky SHP. Hydroquinone Stimulates Inflammatory Functions in Microvascular Endothelial Cells via NF-κB Nuclear Activation. Basic Clin Pharmacol Toxicol 2011; 109:372-80. [DOI: 10.1111/j.1742-7843.2011.00739.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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10
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Hebeda CB, Bolonheis SM, Nakasato A, Belinati K, Souza PDC, Gouvea DR, Lopes NP, Farsky SHP. Effects of chlorogenic acid on neutrophil locomotion functions in response to inflammatory stimulus. J Ethnopharmacol 2011; 135:261-269. [PMID: 21414398 DOI: 10.1016/j.jep.2011.02.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 02/17/2011] [Accepted: 02/27/2011] [Indexed: 05/30/2023]
Abstract
AIM OF THE STUDY Species of Lychnophora are used in Brazilian folk medicine as analgesic and anti-inflammatory agents. Chlorogenic acid (CGA) and their analogues are important components of polar extracts of these species, as well in several European and Asian medicinal plants. Some of these phenolic compounds display anti-inflammatory effects. In this paper we report the isolation of CGA from Lychnophora salicifolia and its effects on functions involved in neutrophils locomotion. MATERIALS AND METHODS LC-MS(n) data confirmed the presence of CGA in the plant. Actions of CGA were investigated on neutrophils obtained from peritoneal cavity of Wistar rats (4h after 1% oyster glycogen solution injection; 10 ml), and incubated with vehicle or with 50, 100 or 1000 μM CGA in presence of lipopolysaccharide from Escherichia coli (LPS, 5 μg/ml). Nitric oxide (NO; Griess reaction); prostaglandin E(2) (PGE(2)), interleukin-1β (IL-1β) and tumor necrosis factor-α [TNF-α; enzyme-linked immunosorbent assay (EIA)]; protein (flow cytometry) and gene (RT-PCR) expression of L-selectin, β(2)integrin and platelet-endothelial cell adhesion molecule-1 (PECAM-1) were quantified. In vitro neutrophil adhesion to primary culture of microvascular endothelial cell (PMEC) and neutrophil migration in response to formyl-methionil-leucil-phenilalanine (fMLP, 10(-8)M, Boyden chamber) was determined. RESULTS CGA treatment did not modify the secretion of inflammatory mediators, but inhibited L-selectin cleavage and reduced β(2) integrin, independently from its mRNA synthesis, and reduced membrane PECAM-1 expression; inhibited neutrophil adhesion and neutrophil migration induced by fMLP. CONCLUSIONS Based on these findings, we highlight the direct inhibitory actions of CGA on adhesive and locomotion properties of neutrophils, which may contribute to its anti-inflammatory effects and help to explain the use of Lychnophora salicifolia as an anti-inflammatory agent.
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Affiliation(s)
- C B Hebeda
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, Brazil
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Hebeda CB, Teixeira SA, Tamura EK, Muscará MN, de Mello SBV, Markus RP, Farsky SHP. Nitric oxide modulates lipopolysaccharide-induced endothelial platelet endothelial cell adhesion molecule expression via interleukin-10. Clin Exp Immunol 2011; 165:172-9. [PMID: 21564091 DOI: 10.1111/j.1365-2249.2011.04396.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
We have shown previously that nitric oxide (NO) controls platelet endothelial cell adhesion molecule (PECAM-1) expression on both neutrophils and endothelial cells under physiological conditions. Here, the molecular mechanism by which NO regulates lipopolysaccharide (LPS)-induced endothelial PECAM-1 expression and the role of interleukin (IL)-10 on this control was investigated. For this purpose, N-(G)-nitro-L-arginine methyl ester (L-NAME; 20 mg/kg/day for 14 days dissolved in drinking water) was used to inhibit both constitutive (cNOS) and inducible nitric oxide (iNOS) synthase activities in LPS-stimulated Wistar rats (5 mg/kg, intraperitoneally). This treatment resulted in reduced levels of serum NO. Under this condition, circulating levels of IL-10 was enhanced, secreted mainly by circulating lymphocytes, dependent on transcriptional activation, and endothelial PECAM-1 expression was reduced independently on reduced gene synthesis. The connection between NO, IL-10 and PECAM-1 expression was examined by incubating LPS-stimulated (1 µg/ml) cultured endothelial cells obtained from naive rats with supernatant of LPS-stimulated lymphocytes, which were obtained from blood of control or L-NAME-treated rats. Supernatant of LPS-stimulated lymphocytes obtained from L-NAME-treated rats, which contained higher levels of IL-10, reduced LPS-induced PECAM-1 expression by endothelial cells, and this reduction was reversed by adding the anti-IL-10 monoclonal antibody. Therefore, an association between NO, IL-10 and PECAM-1 was found and may represent a novel mechanism by which NO controls endothelial cell functions.
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Affiliation(s)
- C B Hebeda
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, Brazil
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de Oliveira APL, Lino-Dos-Santos-Franco A, Hamasato EK, Quinteiro-Filho W, Hebeda CB, Damazo AS, Farsky SHP, Tavares-de-Lima W, Palermo-Neto J. Amphetamine modulates cellular recruitment and airway reactivity in a rat model of allergic lung inflammation. Toxicol Lett 2010; 200:117-23. [PMID: 21093552 DOI: 10.1016/j.toxlet.2010.11.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Revised: 11/08/2010] [Accepted: 11/10/2010] [Indexed: 10/18/2022]
Abstract
Asthma is characterized by pulmonary cellular infiltration, vascular exudation and airway hyperresponsiveness. Several drugs that modify central nervous system (CNS) activity can modulate the course of asthma. Amphetamine (AMPH) is a highly abused drug that presents potent stimulating effects on the CNS and has been shown to induce behavioral, biochemical and immunological effects. The purpose of this study was to investigate the effects of AMPH on pulmonary cellular influx, vascular permeability and airway reactivity. AMPH effects on adhesion molecule expression, IL-10 and IL-4 release and mast cell degranulation were also studied. Male Wistar rats were sensitized with ovalbumin (OVA) plus alum via subcutaneous injection. One week later, the rats received another injection of OVA-alum (booster). Two weeks after this booster, the rats were subjected to AMPH treatment 12 h prior to the OVA airway challenge. In rats treated with AMPH, the OVA challenge reduced cell recruitment into the lung, the vascular permeability and the cellular expression of ICAM-1 and Mac-1. Additionally, elevated levels of IL-10 and IL-4 were found in samples of lung explants from allergic rats. AMPH treatment, in comparison, increased IL-10 levels but reduced those of IL-4 in the lung explants. Moreover, the tracheal responsiveness to methacholine (MCh), as well as to an in vitro OVA challenge, was reduced by AMPH treatment, and levels of PCA titers were not modified by the drug. Our findings suggest that single AMPH treatment down-regulates several parameters of lung inflammation, such as cellular migration, vascular permeability and tracheal responsiveness. These results also indicate that AMPH actions on allergic lung inflammation include endothelium-leukocyte interaction mechanisms, cytokine release and mast cell degranulation.
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Hebeda CB, Macedo SM, Cavalcanti DM, Ferreira JM, Souza GT, Almeida SR, Farsky S. In vivo hydroquinone (HQ) exposure impairs macrophage function and lung allergic inflammation. Toxicol Lett 2009. [DOI: 10.1016/j.toxlet.2009.06.664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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