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Stipp MC, Kulik JD, Corso CR, Galindo CM, Adami ER, Evangelista AG, Luciano FB, Winnischofer SMB, Cadena SMSC, Sassaki GL, Acco A. Influence of red wine polysaccharides on cytochrome P450 enzymes and inflammatory parameters in tumor models. Int J Biol Macromol 2023; 240:124385. [PMID: 37060983 DOI: 10.1016/j.ijbiomac.2023.124385] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/17/2023]
Abstract
The soluble fraction of polysaccharides from cabernet franc red wine (SFP) previously showed antitumoral effects by modulating the immune system. The present study tested the hypothesis that the SFP can regulate CYPs in vitro in HepG2 cells and in vivo in Walker-256 tumor-bearing rats. The SFP was used in the following protocols: (i) solid tumor, (ii) liquid tumor, and (iii) chemopreventive solid tumor. The SFP reduced solid tumor growth in both solid tumor protocols but did not inhibit liquid tumor development. The SFP reduced total CYP levels in the solid and liquid tumor protocols and reduced the gene expression of Cyp1a1 and Cyp2e1 in rats and CYP1A2 in HepG2 cells. An increase of N-acetylglucosaminidase activity was observed in all SFP-treated rats, and TNF-α levels increased in the solid tumor protocol in the vehicle, SFP, and vincristine (positive control) groups. The chemopreventive solid tumor protocol did not modify CYP levels in the liver or intestine or N-acetylglucosaminidase and myeloperoxidase activity in the liver. The in vitro digestion and nuclear magnetic resonance analyses suggested that SFP was minimally modified in the gastrointestinal system. In conclusion, SFP inhibited CYPs both in vivo and in vitro, likely as a result of its immunoinflammatory actions.
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Affiliation(s)
| | - Juliana Danna Kulik
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, Brazil
| | - Claudia Rita Corso
- Department of Pharmacology, Federal University of Paraná, Curitiba, Brazil
| | | | | | | | | | | | | | - Guilherme Lanzi Sassaki
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, Brazil
| | - Alexandra Acco
- Department of Pharmacology, Federal University of Paraná, Curitiba, Brazil.
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2
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Rossi IV, Nunes MAF, Sabatke B, Ribas HT, Winnischofer SMB, Ramos ASP, Inal JM, Ramirez MI. An induced population of Trypanosoma cruzi epimastigotes more resistant to complement lysis promotes a phenotype with greater differentiation, invasiveness, and release of extracellular vesicles. Front Cell Infect Microbiol 2022; 12:1046681. [PMID: 36590580 PMCID: PMC9795005 DOI: 10.3389/fcimb.2022.1046681] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 11/24/2022] [Indexed: 12/23/2022] Open
Abstract
Introduction Chagas disease is a neglected tropical disease caused by Trypanosoma cruzi, which uses blood-feeding triatomine bugs as a vector to finally infect mammalian hosts. Upon entering the host, the parasite needs to effectively evade the attack of the complement system and quickly invade cells to guarantee an infection. In order to accomplish this, T. cruzi expresses different molecules on its surface and releases extracellular vesicles (EVs). Methods Here, we have selected a population of epimastigotes (a replicative form) from T. cruzi through two rounds of exposure to normal human serum (NHS), to reach 30% survival (2R population). This 2R population was characterized in several aspects and compared to Wild type population. Results The 2R population had a favored metacyclogenesis compared with wild-type (WT) parasites. 2R metacyclic trypomastigotes had a two-fold increase in resistance to complementmediated lysis and were at least three times more infective to eukaryotic cells, probably due to a higher GP82 expression in the resistant population. Moreover, we have shown that EVs from resistant parasites can transfer the invasive phenotype to the WT population. In addition, we showed that the virulence phenotype of the selected population remains in the trypomastigote form derived from cell culture, which is more infective and also has a higher rate of release of trypomastigotes from infected cells. Conclusions Altogether, these data indicate that it is possible to select parasites after exposure to a particular stress factor and that the phenotype of epimastigotes remained in the infective stage. Importantly, EVs seem to be an important virulence fator increasing mechanism in this context of survival and persistence in the host.
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Affiliation(s)
- Izadora Volpato Rossi
- Graduate Program in Cell and Molecular Biology, Federal University of Paraná, Curitiba, PR, Brazil,Carlos Chagas Institute, Fundação Oswaldo Cruz (FIOCRUZ-PR), Curitiba, PR, Brazil
| | | | - Bruna Sabatke
- Carlos Chagas Institute, Fundação Oswaldo Cruz (FIOCRUZ-PR), Curitiba, PR, Brazil,Graduate Program in Microbiology, Pathology and Parasitology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Hennrique Taborda Ribas
- Graduate Program in Biochemistry Sciences, Federal University of Paraná, Curitiba, PR, Brazil
| | - Sheila Maria Brochado Winnischofer
- Graduate Program in Biochemistry Sciences, Federal University of Paraná, Curitiba, PR, Brazil,Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, PR, Brazil
| | | | - Jameel Malhador Inal
- School of Human Sciences, London Metropolitan University, London, United Kingdom,School of Life and Medical Sciences, University of Hertfordshire, London, United Kingdom
| | - Marcel Ivan Ramirez
- Carlos Chagas Institute, Fundação Oswaldo Cruz (FIOCRUZ-PR), Curitiba, PR, Brazil,*Correspondence: Marcel Ivan Ramirez,
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Rizzi J, Moro TR, Winnischofer SMB, Colusse GA, Tamiello CS, Trombetta-Lima M, Noleto GR, Dolga AM, Duarte MER, Noseda MD. Chemical structure and biological activity of the (1 → 3)-linked β-D-glucan isolated from marine diatom Conticribra weissflogii. Int J Biol Macromol 2022; 224:584-593. [DOI: 10.1016/j.ijbiomac.2022.10.147] [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] [Received: 01/10/2022] [Revised: 10/08/2022] [Accepted: 10/16/2022] [Indexed: 11/05/2022]
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Corrêa-Ferreira ML, do Rocio Andrade Pires A, Barbosa IR, Echevarria A, Pedrassoli GH, Winnischofer SMB, Noleto GR, Cadena SMSC. The mesoionic compound MI-D changes energy metabolism and induces apoptosis in T98G glioma cells. Mol Cell Biochem 2022; 477:2033-2045. [PMID: 35420333 DOI: 10.1007/s11010-022-04423-2] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 03/25/2022] [Indexed: 10/18/2022]
Abstract
The mesoionic compound 4-phenyl-5-(4-nitro-cinnamoyl)-1,3,4-thiadiazolium-2-phenylamine chloride (MI-D) impairs mitochondrial oxidative phosphorylation and has a significant antitumour effect against hepatocarcinoma and melanoma. This study evaluated the cytotoxic effect of MI-D on T98G glioblastoma cells and investigated whether the impairment of oxidative phosphorylation promoted by MI-D is relevant to its cytotoxic effect. The effects of MI-D on T98G cells cultured in high glucose Dulbecco's modified Eagle's medium (DMEM) HG (glycolysis-dependent) and galactose plus glutamine-supplemented Dulbecco's modified Eagle's medium (DMEM) GAL (oxidative phosphorylation-dependent) were compared. T98G cells grown in DMEM GAL medium exhibited higher respiration rates and citrate synthase activity and lower lactate levels, confirming the metabolic shift to oxidative phosphorylation in these cells. MI-D significantly decreased the cell viability in a dose-dependent manner in both media; however, T98G cells cultured in DMEM GAL medium were more susceptible. The mesoionic significantly inhibited mitochondrial oxidative phosphorylation of glioma cells in both media. At the same time, lactate levels were not altered, indicating an absence of compensatory glycolysis activation. Additionally, MI-D increased the citrate synthase activity of cells in both media, which in DMEM HG-cultivated cells was followed by citrate accumulation. Apoptosis dependent on caspase-3 mediated the toxicity of MI-D on T98G cells. The higher susceptibility of glioma cells cultured in DMEM GAL medium to MI-D indicates that the impairment of mitochondrial functions is involved in mesoionic cytotoxicity. The results of this study indicate the potential use of MI-D for glioblastoma treatment.
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Affiliation(s)
| | | | - Igor Resendes Barbosa
- Department of Chemistry, Federal Rural University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Aurea Echevarria
- Department of Chemistry, Federal Rural University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | - Sílvia Maria Suter Correia Cadena
- Department of Biochemistry and Molecular Biology, Federal University of Parana, Curitiba, Brazil. .,Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Coronel Francisco H. Dos Santos, C. Postal 19046, Curitiba, Paraná, 81531-990, Brazil.
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Nunes MC, dos Santos Carlos F, Fuganti O, da Silva LA, Ribas HT, Winnischofer SMB, Nunes FS. A Facile Preparation of a New Water-Soluble Acridine Derivative and Application as a Turn-off Fluorescence Chemosensor for Selective Detection of Hg2+. J Fluoresc 2020; 30:235-247. [DOI: 10.1007/s10895-020-02489-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 01/15/2020] [Indexed: 10/25/2022]
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6
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Spindola A, Targa ADS, Rodrigues LS, Winnischofer SMB, Lima MMS, Sogayar MC, Trombetta-Lima M. Increased Mmp/Reck Expression Ratio Is Associated with Increased Recognition Memory Performance in a Parkinson's Disease Animal Model. Mol Neurobiol 2019; 57:837-847. [PMID: 31493243 DOI: 10.1007/s12035-019-01740-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 02/12/2019] [Accepted: 08/19/2019] [Indexed: 02/08/2023]
Abstract
Parkinson's disease (PD) is the second most prevalent neurodegenerative disorder worldwide. Among its non-motor symptoms, sleep disorders are extremely common, being linked to cognitive and memory disruption. The microenvironment, particularly the extracellular matrix (ECM), is deeply involved in memory consolidation as well as in neuropathological processes, such as inflammation, damage to the blood-brain barrier and neuronal death. To better understand ECM dynamics in PD memory disturbances, we investigated the orchestrated expression of Mmps (Mmp-3, Mmp-7, and Mmp-9) and their modulators (Reck and Timp-3) in a rotenone-induced PD model. Also, we introduced an additional intervention in the memory process through rapid eye movement sleep deprivation (REMSD). We observed a REMSD-induced trend in reversing the memory impairment caused by rotenone administration. Associated to this phenotype, we observed a significant increase in Mmp-7/Reck and Mmp-9/Reck mRNA expression ratio in the substantia nigra and Mmp-9/Reck ratio in the hypothalamus. Moreover, the positive correlation of Mmp/Reck expression ratios between the substantia nigra and the striatum, observed upon rotenone infusion, was reversed by REMSD. Taken together, our results suggest a potential orchestrated association between an increase in Mmp-7 and Mmp-9/Reck expression ratios in the substantia nigra and a possible positive effect on cognitive performance in subjects affected by PD.
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Affiliation(s)
- Adauto Spindola
- Núcleo de Terapia Celular e Molecular (NUCEL), Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, SP, 05360-130, Brazil
| | - Adriano D S Targa
- Laboratório de Neurofisiologia, Departamento de Fisiologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil.,Departamento de Farmacologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
| | - Lais Soares Rodrigues
- Laboratório de Neurofisiologia, Departamento de Fisiologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil.,Departamento de Farmacologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
| | - Sheila Maria Brochado Winnischofer
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil.,Departamento de Biologia Celular e Molecular, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
| | - Marcelo M S Lima
- Laboratório de Neurofisiologia, Departamento de Fisiologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil.,Departamento de Farmacologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
| | - Mari Cleide Sogayar
- Núcleo de Terapia Celular e Molecular (NUCEL), Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, SP, 05360-130, Brazil.,Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Sao Paulo, SP, 05508-000, Brazil
| | - Marina Trombetta-Lima
- Núcleo de Terapia Celular e Molecular (NUCEL), Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, SP, 05360-130, Brazil.
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de Moura Escobar SJ, Simone M, Martin N, de Oliveira Ribeiro CA, Martinez GR, Winnischofer SMB, Witting PK, Rocha MEM. Cytotoxic effects of 4'-hydroxychalcone on human neuroblastoma cells (SH-SY5Y). Toxicol In Vitro 2019; 61:104640. [PMID: 31493544 DOI: 10.1016/j.tiv.2019.104640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 03/21/2019] [Accepted: 09/03/2019] [Indexed: 12/14/2022]
Abstract
Neuroblastoma is an aggressive form of cancer with high mortality. Hydroxychalcones have received considerable attention because of their cytotoxic activities on cancer cells. However, the effect of the 4'-hydroxychalcone on neuroblastoma cells is unknown. The aim of the present study was to characterize the cytotoxicity of 4HC to neuroblastoma and the importance of mitochondrial effects in its action mechanism using an in vitro model of SH-SY5Y cells. Incubation of cultured SHSY5Y cells with 10-60 μM 4HC (24 h) decreased cell confluency, cellular metabolic activity and depleted intracellular ATP relative to the vehicle-treated control. The mechanism of 4HC-induced cell toxicity likely involves mitochondria dysfunctional as judged by inhibition of mitochondrial respiration, depolarization of mitochondria membrane potential and intracellular and morphological alterations. Furthermore, loss of cell viability was accompanied mainly by increase of phosphatidylserine exposure on the surface of cells, suggesting that the flavonoid may induce apoptosis in SH-SY5Y cells. In addition, treatment inhibited SH-SY5Y cell migration/proliferation in a scratch assay and induced significant changes in the cell cycle progression. Our results showed the effects of 4HC in the human neuroblastoma cell line SH-SY5Y are associated with mitochondrial dysfunctional, depletion of intracellular ATP levels, ROS increase, alteration in cell cycle progression and cellular morphology.
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Affiliation(s)
- Stephane Janaina de Moura Escobar
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, PR, Brazil; Redox Biology and Neuropharmacology Groups, Discipline of Pathology, The University of Sydney, Sydney, NSW 2006, Australia
| | - Martin Simone
- Redox Biology and Neuropharmacology Groups, Discipline of Pathology, The University of Sydney, Sydney, NSW 2006, Australia
| | - Nathan Martin
- Redox Biology and Neuropharmacology Groups, Discipline of Pathology, The University of Sydney, Sydney, NSW 2006, Australia
| | | | - Glaucia Regina Martinez
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, PR, Brazil
| | | | - Paul Kenneth Witting
- Redox Biology and Neuropharmacology Groups, Discipline of Pathology, The University of Sydney, Sydney, NSW 2006, Australia
| | - Maria Eliane Merlin Rocha
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, PR, Brazil.
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8
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Gonçalves JP, Potrich FB, Ferreira Dos Santos ML, Costa Gagosian VS, Rodrigues Rossi G, Jacomasso T, Mendes A, Bonciani Nader H, Brochado Winnischofer SM, Trindade ES, Camargo De Oliveira C. In vitro attenuation of classic metastatic melanoma‑related features by highly diluted natural complexes: Molecular and functional analyses. Int J Oncol 2019; 55:721-732. [PMID: 31364728 DOI: 10.3892/ijo.2019.4846] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 04/12/2019] [Indexed: 11/05/2022] Open
Abstract
Metastasis is responsible for the majority of deaths among patients with malignant melanoma. Despite recent advances, the majority of current and modern therapies are ineffective and/or financially unfeasible. Thus, in this study, we investigated two low‑cost highly‑diluted natural complexes (HDNCs) that have been shown to be effective against malignant melanoma in a murine model in vivo. The aim of this study was to determine the mechanisms through which these HDNCs directly affect melanoma cells, either alone or in an artificial tumor microenvironment, suppressing the metastatic phenotype, thus explaining previous in vivo effects. For this purpose, HDNC in vitro treatments of B16‑F10 melanoma cells, alone or in co‑culture with Balb/3T3 fibroblasts, were carried out. Molecular biology techniques and standard functional assays were used to assess the changes in molecule expression and in cell behaviors related to the metastatic phenotype. Melanoma progression features were found to be regulated by HDNCs. Molecules related to cell adhesion (N‑cadherin, β1‑integrin and CD44), and migration, extracellular matrix remodeling and angiogenesis were modulated. The cell migratory, invasive and clonogenic capacities were reduced by the HDNCs. No loss of cell proliferation or viability were observed. On the whole, the findings of this study indicate that HDNCs directly reprogram, molecularly and functionally, melanoma cells in vitro, modulating their metastatic phenotype. Such findings are likely to be responsible for the attenuation of tumor growth and lung colonization previously observed in vivo.
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Affiliation(s)
- Jenifer Pendiuk Gonçalves
- Laboratory of Inflammatory and Neoplastic Cells/Laboratory of Sulfated Polysaccharides Investigation, Cell Biology Department, Section of Biological Sciences, Federal University of Paraná, CEP 81530‑980 Curitiba‑PR, Brazil
| | - Francine Bittencourt Potrich
- Laboratory of Inflammatory and Neoplastic Cells/Laboratory of Sulfated Polysaccharides Investigation, Cell Biology Department, Section of Biological Sciences, Federal University of Paraná, CEP 81530‑980 Curitiba‑PR, Brazil
| | - Maria Luiza Ferreira Dos Santos
- Laboratory of Inflammatory and Neoplastic Cells/Laboratory of Sulfated Polysaccharides Investigation, Cell Biology Department, Section of Biological Sciences, Federal University of Paraná, CEP 81530‑980 Curitiba‑PR, Brazil
| | - Viviana Stephanie Costa Gagosian
- Laboratory of Inflammatory and Neoplastic Cells/Laboratory of Sulfated Polysaccharides Investigation, Cell Biology Department, Section of Biological Sciences, Federal University of Paraná, CEP 81530‑980 Curitiba‑PR, Brazil
| | - Gustavo Rodrigues Rossi
- Laboratory of Inflammatory and Neoplastic Cells/Laboratory of Sulfated Polysaccharides Investigation, Cell Biology Department, Section of Biological Sciences, Federal University of Paraná, CEP 81530‑980 Curitiba‑PR, Brazil
| | - Thiago Jacomasso
- Laboratory of Inflammatory and Neoplastic Cells/Laboratory of Sulfated Polysaccharides Investigation, Cell Biology Department, Section of Biological Sciences, Federal University of Paraná, CEP 81530‑980 Curitiba‑PR, Brazil
| | - Aline Mendes
- Biochemistry Department, Federal University of São Paulo, São Paulo ‑ SP 04023‑062, Brazil
| | - Helena Bonciani Nader
- Biochemistry Department, Federal University of São Paulo, São Paulo ‑ SP 04023‑062, Brazil
| | - Sheila Maria Brochado Winnischofer
- Biochemistry and Molecular Biology Department, Section of Biological Sciences, Federal University of Paraná, CEP 81530‑980 Curitiba‑PR, Brazil
| | - Edvaldo S Trindade
- Laboratory of Inflammatory and Neoplastic Cells/Laboratory of Sulfated Polysaccharides Investigation, Cell Biology Department, Section of Biological Sciences, Federal University of Paraná, CEP 81530‑980 Curitiba‑PR, Brazil
| | - Carolina Camargo De Oliveira
- Laboratory of Inflammatory and Neoplastic Cells/Laboratory of Sulfated Polysaccharides Investigation, Cell Biology Department, Section of Biological Sciences, Federal University of Paraná, CEP 81530‑980 Curitiba‑PR, Brazil
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Amaral SDC, Barbieri SF, Ruthes AC, Bark JM, Brochado Winnischofer SM, Silveira JLM. Cytotoxic effect of crude and purified pectins from Campomanesia xanthocarpa Berg on human glioblastoma cells. Carbohydr Polym 2019; 224:115140. [PMID: 31472853 DOI: 10.1016/j.carbpol.2019.115140] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 04/16/2019] [Revised: 07/26/2019] [Accepted: 07/27/2019] [Indexed: 01/08/2023]
Abstract
A new source of pectin with a cytotoxic effect on glioblastoma cells is presented. A homogeneous GWP-FP-S fraction (Mw of 29,170 g mol-1) was obtained by fractionating the crude pectin extract (GW) from Campomanesia xanthocarpa pulp. According to the monosaccharide composition, the GWP-FP-S was composed of galacturonic acid (58.8%), arabinose (28.5%), galactose (11.3%) and rhamnose (1.1%), comprising 57.7% of homogalacturonans (HG) and 42.0% of type I rhamnogalacturonans (RG-I). These structures were characterized by chromatographic and spectroscopic methods; GW and GWP-FP-S fractions were evaluated by MTT and crystal violet assays for their cytotoxic effects. Both fractions induced cytotoxicity (15.55-37.65%) with concomitant increase in the cellular ROS levels in human glioblastoma cells at 25-400 μg mL-1, after 48 h of treatment, whereas no cytotoxicity was observed for normal NIH 3T3 cells. This is the first report of in vitro bioactivity and the first investigation of the antitumor potential of gabiroba pectins.
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Affiliation(s)
- Sarah da Costa Amaral
- Postgraduate Program in Biochemistry Sciences, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, 81531-990, Brazil
| | - Shayla Fernanda Barbieri
- Postgraduate Program in Biochemistry Sciences, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, 81531-990, Brazil
| | - Andrea Caroline Ruthes
- Division of Glycoscience, Royal Institute of Technology - KTH, Sweden; Department of Entomology and Nematology, University of Florida, Gulf Coast Research and Education Center (GCREC-UF), Wimauma, USA
| | - Juliana Müller Bark
- Postgraduate Program in Biochemistry Sciences, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, 81531-990, Brazil
| | - Sheila Maria Brochado Winnischofer
- Postgraduate Program in Biochemistry Sciences, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, 81531-990, Brazil; Department of Biochemistry and Molecular Biology, Federal University of Paraná, CEP 81.531-980, Curitiba-PR, Brazil; Postgraduate Program in Cellular and Molecular Biology, Federal University of Paraná, CEP 81.531-980, Curitiba-PR, Brazil
| | - Joana Léa Meira Silveira
- Postgraduate Program in Biochemistry Sciences, Sector of Biological Sciences, Federal University of Paraná, Curitiba, PR, 81531-990, Brazil; Department of Biochemistry and Molecular Biology, Federal University of Paraná, CEP 81.531-980, Curitiba-PR, Brazil.
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Leme DM, Sehr A, Grummt T, Gonçalves JP, Jacomasso T, Winnischofer SMB, Potrich FB, Oliveira CCD, Trindade EDS, de Oliveira DP. In vitro characterization of cutaneous immunotoxicity of immortalized human keratinocytes (HaCaT) exposed to reactive and disperse textile dyes. J Toxicol Environ Health A 2018; 81:589-603. [PMID: 29714641 DOI: 10.1080/15287394.2018.1464981] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/11/2018] [Indexed: 06/08/2023]
Abstract
Several synthetic dyes are used by textile industry for supplying the market of colored clothes. However, these chemicals have been associated with a variety of adverse human health effects, including textile dermatitis. Thus, there is a growing concern to identify textile dyes potentially as skin immunotoxicants. The aim of this in vitro study was to characterize the immunotoxic potential of reactive (Reactive Green 19 [RG19], Reactive Blue 2 [RB2], Reactive Black 5 [RB5]) and disperse (Disperse Red 1 [DR1]) textile dyes using a dermal cell line. For this purpose, a cell-based approach was conducted with immortalized human keratinocytes (KC) (HaCaT) using selected biomarkers of cutaneous inflammation including modulation of matrix metalloproteinases (MMP), oxidative stress such as reactive oxygen species (ROS) generation, and inflammatory cytokine profile. DR1 was the only dye able to trigger an immune response such as release of IL-12 cytokine, a potent co-stimulator of T helper 1 cell, which may be considered as a skin immunotoxicant. The reactive dyes including RB5 that were previously reported as skin sensitizers failed to induce inflammatory reactions under the conditions tested. The reactive dyes studied may pose a risk to human KC by induction of effects related to modulation of MMP-2 (RB5) and -9 (RB5 and RB2) and generation of ROS (RG19 and RB2). Thus, all these dyes need to be used with caution to avoid undesirable effects to consumers who may be exposed dermally.
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Affiliation(s)
- Daniela Morais Leme
- a Departamento de Genética , Universidade Federal do Paraná , Curitiba , PR , Brasil
| | - Andrea Sehr
- b Federal Environment Agency, Section Drinking Water and Swimming Pool Water Toxicology , Federal Environment Agency (UBA), Bad Elster Branch , Bad Elster , Germany
| | - Tamara Grummt
- b Federal Environment Agency, Section Drinking Water and Swimming Pool Water Toxicology , Federal Environment Agency (UBA), Bad Elster Branch , Bad Elster , Germany
| | | | - Thiago Jacomasso
- d Departamento de Bioquímica , Universidade Federal do Paraná , Curitiba , PR , Brasil
| | | | | | | | | | - Danielle Palma de Oliveira
- e Faculdade de Ciências Farmacêuticas de Ribeirão Preto , Universidade de São Paulo , Ribeirão Preto , SP , Brasil
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Assis-Ribas T, Forni MF, Winnischofer SMB, Sogayar MC, Trombetta-Lima M. Extracellular matrix dynamics during mesenchymal stem cells differentiation. Dev Biol 2018; 437:63-74. [PMID: 29544769 DOI: 10.1016/j.ydbio.2018.03.002] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 02/05/2018] [Accepted: 03/02/2018] [Indexed: 12/18/2022]
Abstract
Mesenchymal stem cells (MSCs) are stromal cells that display self-renewal and multipotent differentiation capacity. The repertoire of mature cells generated ranges but is not restricted to: fat, bone and cartilage. Their potential importance for both cell therapy and maintenance of in vivo homeostasis is indisputable. Nonetheless, both their in vivo identity and use in cell therapy remain elusive. A drawback generated by this fact is that little is known about the MSC niche and how it impacts differentiation and homeostasis maintenance. Hence, the roles played by the extracellular matrix (ECM) and its main regulators namely: the Matrix Metalloproteinases (MMPs) and their counteracting inhibitors (TIMPs and RECK) upon stem cells differentiation are only now beginning to be unveiled. Here, we will focus on mesenchymal stem cells and review the main mechanisms involved in adipo, chondro and osteogenesis, discussing how the extracellular matrix can impact not only lineage commitment, but, also, their survival and potentiality. This review critically analyzes recent work in the field in an effort towards a better understanding of the roles of Matrix Metalloproteinases and their inhibitors in the above-cited events.
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Affiliation(s)
- Thais Assis-Ribas
- NUCEL-NETCEM-Faculdade de Medicina, Departamento de Clínica Médica, Universidade de São Paulo, São Paulo, SP 05360-120, Brazil
| | - Maria Fernanda Forni
- Instituto de Química, Departamento de Bioquímica, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| | | | - Mari Cleide Sogayar
- NUCEL-NETCEM-Faculdade de Medicina, Departamento de Clínica Médica, Universidade de São Paulo, São Paulo, SP 05360-120, Brazil; Instituto de Química, Departamento de Bioquímica, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| | - Marina Trombetta-Lima
- NUCEL-NETCEM-Faculdade de Medicina, Departamento de Clínica Médica, Universidade de São Paulo, São Paulo, SP 05360-120, Brazil.
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do Nascimento GE, Winnischofer SMB, Ramirez MI, Iacomini M, Cordeiro LMC. The influence of sweet pepper pectin structural characteristics on cytokine secretion by THP-1 macrophages. Food Res Int 2017; 102:588-594. [DOI: 10.1016/j.foodres.2017.09.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 08/30/2017] [Accepted: 09/11/2017] [Indexed: 10/18/2022]
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Santana-Filho APD, Jacomasso T, Riter DS, Barison A, Iacomini M, Winnischofer SMB, Sassaki GL. NMR metabolic fingerprints of murine melanocyte and melanoma cell lines: application to biomarker discovery. Sci Rep 2017; 7:42324. [PMID: 28198377 PMCID: PMC5309734 DOI: 10.1038/srep42324] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 01/10/2017] [Indexed: 01/26/2023] Open
Abstract
Melanoma is the most aggressive type of skin cancer and efforts to improve the diagnosis of this neoplasia are largely based on the use of cell lines. Metabolomics is currently undergoing great advancements towards its use to screening for disease biomarkers. Although NMR metabolomics includes both 1D and 2D methodologies, there is a lack of data in the literature regarding heteronuclear 2D NMR assignments of the metabolome from eukaryotic cell lines. The present study applied NMR-based metabolomics strategies to characterize aqueous and lipid extracts from murine melanocytes and melanoma cell lines with distinct tumorigenic potential, successfully obtaining fingerprints of the metabolites from the extracts of the cell lines by means of 2D NMR HSQC correlation maps. Relative amounts of the identified metabolites were compared between the 4 cell lines. Multivariate analysis of 1H NMR data was able not only to differentiate the melanocyte cell line from the tumorigenic ones but also distinguish among the 3 tumorigenic cell lines. We also investigated the effects of mitogenic agents, and found that they can markedly influence the metabolome of the melanocyte cell line, resembling the pattern of most proliferative cell lines.
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Affiliation(s)
| | - Thiago Jacomasso
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Cx.P 19046, CEP 81531-990, Curitiba, PR, Brazil
| | - Daniel Suss Riter
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Cx.P 19046, CEP 81531-990, Curitiba, PR, Brazil
| | - Andersson Barison
- Departamento de Química, Universidade Federal do Paraná, Cx.P. 19081, CEP 81531-990, Curitiba, PR, Brazil
| | - Marcello Iacomini
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Cx.P 19046, CEP 81531-990, Curitiba, PR, Brazil
| | | | - Guilherme Lanzi Sassaki
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Cx.P 19046, CEP 81531-990, Curitiba, PR, Brazil
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14
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Trombetta-Lima M, Winnischofer SMB, Demasi MAA, Astorino Filho R, Carreira ACO, Wei B, de Assis-Ribas T, Konig MS, Bowman-Colin C, Oba-Shinjo SM, Marie SKN, Stetler-Stevenson W, Sogayar MC. Isolation and characterization of novel RECK tumor suppressor gene splice variants. Oncotarget 2016; 6:33120-33. [PMID: 26431549 PMCID: PMC4741753 DOI: 10.18632/oncotarget.5305] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 09/15/2015] [Indexed: 01/09/2023] Open
Abstract
Glioblastoma multiforme is the most common and lethal of the central nervous system glial-derived tumors. RECK suppresses tumor invasion by negatively regulating at least three members of the matrix metalloproteinase family: MMP-9, MMP-2, and MT1-MMP. A positive correlation has been observed between the abundance of RECK expression in tumor samples and a more favorable prognosis for patients with several types of tumors. In the present study, novel alternatively spliced variants of the RECK gene: RECK-B and RECK-I were isolated by RT-PCR and sequenced. The expression levels and profiles of these alternative RECK transcripts, as well as canonical RECK were determined in tissue samples of malignant astrocytomas of different grades and in a normal tissue RNA panel by qRT-PCR. Our results show that higher canonical RECK expression, accompanied by a higher canonical to alternative transcript expression ratio, positively correlates with higher overall survival rate after chemotherapeutic treatment of GBM patients. U87MG and T98G cells over-expressing the RECK-B alternative variant display higher anchorage-independent clonal growth and do not display modulation of, respectively, MMP-2 and MMP-9 expression. Our findings suggest that RECK transcript variants might have opposite roles in GBM biology and the ratio of their expression levels may be informative for the prognostic outcome of GBM patients.
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Affiliation(s)
- Marina Trombetta-Lima
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil.,NUCEL-NETCEM-Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, 05360-120, Brazil
| | | | - Marcos Angelo Almeida Demasi
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil.,NUCEL-NETCEM-Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, 05360-120, Brazil
| | - Renato Astorino Filho
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil.,NUCEL-NETCEM-Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, 05360-120, Brazil
| | - Ana Claudia Oliveira Carreira
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil.,NUCEL-NETCEM-Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, 05360-120, Brazil
| | - Beiyang Wei
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892-4605, USA
| | - Thais de Assis-Ribas
- NUCEL-NETCEM-Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, 05360-120, Brazil
| | | | - Christian Bowman-Colin
- NUCEL-NETCEM-Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, 05360-120, Brazil.,Dana Farber Cancer Institute, Harvard Medical School, Cambridge, MA, 02138, USA
| | - Sueli Mieko Oba-Shinjo
- NUCEL-NETCEM-Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, 05360-120, Brazil.,Departmento de Neurologia, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, 01246-000, Brazil
| | - Suely Kazue Nagahashi Marie
- NUCEL-NETCEM-Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, 05360-120, Brazil.,Departmento de Neurologia, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, 01246-000, Brazil
| | - William Stetler-Stevenson
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892-4605, USA
| | - Mari Cleide Sogayar
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo 05508-000 SP, Brazil.,NUCEL-NETCEM-Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, 05360-120, Brazil
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Guterres FADLB, Martinez GR, Rocha MEM, Winnischofer SMB. Simvastatin rises reactive oxygen species levels and induces senescence in human melanoma cells by activation of p53/p21 pathway. Exp Cell Res 2013; 319:2977-88. [DOI: 10.1016/j.yexcr.2013.07.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 07/24/2013] [Accepted: 07/26/2013] [Indexed: 01/13/2023]
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Suzukawa AA, Vieira A, Winnischofer SMB, Scalfo AC, Di Mascio P, Ferreira AMDC, Ravanat JL, Martins DDL, Rocha MEM, Martinez GR. Novel properties of melanins include promotion of DNA strand breaks, impairment of repair, and reduced ability to damage DNA after quenching of singlet oxygen. Free Radic Biol Med 2012; 52:1945-53. [PMID: 22401857 DOI: 10.1016/j.freeradbiomed.2012.02.039] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 02/17/2012] [Accepted: 02/24/2012] [Indexed: 01/22/2023]
Abstract
Melanins have been associated with the development of melanoma and its resistance to photodynamic therapy (PDT). Singlet molecular oxygen ((1)O(2)), which is produced by ultraviolet A solar radiation and the PDT system, is also involved. Here, we investigated the effects that these factors have on DNA damage and repair. Our results show that both types of melanin (eumelanin and pheomelanin) lead to DNA breakage in the absence of light irradiation and that eumelanin is more harmful than pheomelanin. Interestingly, melanins were found to bind to the minor grooves of DNA, guaranteeing close proximity to DNA and potentially causing the observed high levels of strand breaks. We also show that the interaction of melanins with DNA can impair the access of repair enzymes to lesions, contributing to the perpetuation of DNA damage. Moreover, we found that after melanins interact with (1)O(2), they exhibit a lower ability to induce DNA breakage; we propose that these effects are due to modifications of their structure. Together, our data highlight the different modes of action of the two types of melanin. Our results may have profound implications for cellular redox homeostasis, under conditions of induced melanin synthesis and irradiation with solar light. These results may also be applied to the development of protocols to sensitize melanoma cells to PDT.
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Affiliation(s)
- Andréia Akemi Suzukawa
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, 81.531-980 Curitiba, PR, Brazil
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de Oliveira Demarchi ACC, Zambuzzi WF, Paiva KBS, da Silva-Valenzuela MDG, Nunes FD, de Cássia Sávio Figueira R, Sasahara RM, Demasi MAA, Winnischofer SMB, Sogayar MC, Granjeiro JM. Development of secondary palate requires strict regulation of ECM remodeling: sequential distribution of RECK, MMP-2, MMP-3, and MMP-9. Cell Tissue Res 2010; 340:61-9. [PMID: 20165883 DOI: 10.1007/s00441-010-0931-6] [Citation(s) in RCA: 25] [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: 09/03/2009] [Accepted: 01/15/2010] [Indexed: 11/29/2022]
Abstract
We have evaluated RECK (reversion-inducing-cysteine-rich protein with Kazal motifs), MMP-2 (matrix metalloproteinase-2), MMP-3, and MMP-9 involvement during palate development in mice by using various techniques. Immunohistochemical features revealed the distribution of RECK, MMP-2, and MMP-3 in the mesenchymal tissue and in the midline epithelial seam at embryonic day 13 (E13), MMPs-2, -3, and -9 being particularly expressed at E14 and E14.5. In contrast, RECK was weakly immunostained at these times. Involvement of MMPs was validated by measuring not only their protein expression, but also their activity (zymograms). In situ hybridization signal (ISH) for RECK transcript was distributed in mesenchymal and epithelial regions within palatal shelves at all periods evaluated. Importantly, the results from ISH analysis were in accord with those obtained by real-time polymerase chain reaction. The expression of RECK was found to be temporally regulated, which suggested possible roles in palatal ontogeny. Taken together, our results clearly show that remodeling of the extracellular matrix is finely modulated during secondary palate development and occurs in a sequential manner.
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da Silva Cardeal LB, Brohem CA, Corrêa TCS, Winnischofer SMB, Nakano F, Boccardo E, Villa LL, Sogayar MC, Maria-Engler SS. Higher expression and activity of metalloproteinases in human cervical carcinoma cell lines is associated with HPV presence. Biochem Cell Biol 2007; 84:713-9. [PMID: 17167534 DOI: 10.1139/o06-084] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [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: 11/22/2022] Open
Abstract
Matrix metalloproteinases (MMPs) MMP-2, MMP-9, and MT1-MMP are required for basement membrane degradation in cervical carcinoma. We evaluated the expression and activity of MMPs and their inhibitors RECK and TIMP-2 in 3 human invasive cervical carcinoma cell lines. Two HPV16-positive cell lines (SiHa and CaSki) and an HPV-negative cell line (C33A) were cultured either onto a type-I collagen gel, Matrigel, or plastic, to recreate their three-dimensional growth environment and evaluate the expression of these genes using quantitative real-time PCR. We also analyzed the gelatinolytic activity of MMP-2 and MMP-9 by zymography. We found that HPV (human papillomavirus)-positive cell lines express higher levels of MMP-2, MT1-MMP, and TIMP-2 than the HPV negative cell line. In addition, MMP-9 was expressed at very low levels in both HPV-negative and HPV-positive cell lines. We also observed that the expression of the RECK gene is higher in CaSki cells, being associated with higher pro-MMP-2 activity. Furthermore, Matrigel substrate influences MMP-2 expression in both SiHa and CaSki cells. On the other hand, we found that type-I collagen gel, but not Matrigel, can enhance pro-MMP-2 activity in all cell lines. Our results suggest that the presence of HPV is related to increased expression of MMP-2, MT1-MMP, and TIMP-2, and that pro-MMP-2 activity is higher in HPV-positive than in HPV-negative cells.
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Affiliation(s)
- Laura Beatriz da Silva Cardeal
- Department of Clinical Chemistry & Toxicology, School of Pharmaceutical Sciences, University of São Paulo, Av. Professor Lineu Prestes, 580, Bloco 17, 05508-000 São Paulo, Brazil
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Correa TCS, Brohem CA, Winnischofer SMB, da Silva Cardeal LB, Sasahara RM, Taboga SR, Sogayar MC, Maria-Engler SS. Downregulation of the RECK-tumor and metastasis suppressor gene in glioma invasiveness. J Cell Biochem 2006; 99:156-67. [PMID: 16791855 DOI: 10.1002/jcb.20917] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Invasive behavior is the pathological hallmark of malignant gliomas, being responsible for the failure of surgery, radiation, and chemotherapy. Matrix metalloproteinases (MMPs) are essential for proper ECM remodeling and invasion. The tumor and metastasis suppressor RECK protein regulates at least three members of the MMPs family: MMP-2, MMP-9, and MT1-MMP. In order to mimic the in vivo invasion process, A172 and T98G, respectively, non-invasive and invasive human glioblastoma cell lines, were cultured onto uncoated (control) or type I collagen gel-coated surface, and maintained for up to 7 days to allow establishment of the invasive process. We show that the collagen substrate causes decreased growth rates and morphological alterations correlated with the invasive phenotype. Electronic transmission microscopy of T98G cells revealed membrane invaginations resembling podosomes, which are typically found in cells in the process of crossing tissue boundaries, since they constitute sites of ECM degradation. Real time PCR revealed higher RECK mRNA expression in A172 cells, when compared to T98G cells and, also, in samples obtained from cultures where the invasive process was fully established. Interestingly, the collagen substrate increases RECK expression in A172 cells and the same tendency is displayed by T98G cells. MMPs-2 and -9 displayed higher levels of expression and activity in T98G cells, and their activities are also upregulated by collagen. Therefore, we suggest that: (1) RECK downregulation is critical for the invasiveness process displayed by T98G cells; (2) type 1 collagen could be employed to modulate RECK expression in glioblastoma cell lines. Since a positive correlation between RECK expression and patients survival has been noted in several types of tumors, our results may contribute to elucidate the complex mechanisms of malignant gliomas invasiveness.
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Affiliation(s)
- Tatiana C Silveira Correa
- Department of Clinical Chemistry and Toxicology, School of Pharmaceutical Sciences, University of São Paulo, Brazil
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Traina F, Favaro PMB, Medina SDS, Duarte ADSS, Winnischofer SMB, Costa FF, Saad STO. ANKHD1, ankyrin repeat and KH domain containing 1, is overexpressed in acute leukemias and is associated with SHP2 in K562 cells. Biochim Biophys Acta Mol Basis Dis 2006; 1762:828-34. [PMID: 16956752 DOI: 10.1016/j.bbadis.2006.07.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [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: 05/18/2006] [Revised: 07/05/2006] [Accepted: 07/27/2006] [Indexed: 10/24/2022]
Abstract
In the present study, increased levels of ANKHD1 mRNA and protein expression in leukemia cell lines are reported, as compared with normal hematopoietic cells. Furthermore, a higher expression of ANKHD1 mRNA was detected in primary acute leukemia samples than in normal hematopoietic cells (P=0.002). ANKHD1 was detected in the cytosolic and membrane fraction of cells and was co-immunoprecipitated with SHP2 in protein extracts of K562 and LNCaP cell lines. These findings suggest a role for ANKHD1 as a scaffolding protein that may be associated with the abnormal phenotype of leukemia cells.
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Affiliation(s)
- Fabíola Traina
- The Hematology and Hemotherapy Center, Faculty of Medical Sciences, Department of Internal Medicine, State University of Campinas, São Paulo, Brazil
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Winnischofer SMB, de Oliveira MLS, Sogayar MC. Suppression of AP-1 constitutive activity interferes with polyomavirus MT antigen transformation ability. J Cell Biochem 2004; 90:253-66. [PMID: 14505342 DOI: 10.1002/jcb.10628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Polyomavirus (Py) encodes a potent oncogene, the middle T antigen (MT), that induces cell transformation by binding to and activating several cytoplasmic proteins which take part in transduction of growth factors-induced mitogenic signal to the nucleus. We have previously reported that the AP-1 transcriptional complex is a target for MT during cell transformation although, its activation was not sufficient for establishment of the transformed phenotype. Here we show that expression of a dominant-negative cJun mutant in MT transformed cell lines inhibits its transformation ability, indicating that constitutive AP-1 activity is necessary for cell transformation mediated by MT. Evidences also suggest that proliferation of MT transformed cells in low serum concentrations and their ability to form colonies in agarose are controlled by distinct mechanisms.
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