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Pierdomenico M, Riccioni C, Benassi B. Anti-inflammatory effect of a pomegranate extract on LPS-stimulated HepG2 cells. Nat Prod Res 2024; 38:727-734. [PMID: 37029619 DOI: 10.1080/14786419.2023.2196622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/22/2023] [Indexed: 04/09/2023]
Abstract
Pomegranate is an important source of bioactive molecules with proven beneficial effects on human health. The aim of this study was to investigate the potential anti-inflammatory effect of a pomegranate extract (PE), obtained from the whole fruit and previously characterized by Reversed Phase-Ultra High-Pressure Liquid Chromatography-High Resolution Mass Spectrometry (RP-UHPLC-HRMS), on HepG2 human hepatocellular carcinoma cells challenged with the lipopolysaccharide (LPS). In LPS-treated cells (1 µg/ml, 24h), the PE treatment (administered at the non-cytotoxic dose of 1 µg/ml, 24h) induced a significant reduction of three key pro-inflammatory cytokines, i.e. interleukin-8 (IL-8), interleukin-1 beta (IL-1β) and tumor necrosis factor-alpha (TNF-α), at both gene expression (as assayed by real-time PCR) and secretion levels (by Enzyme-linked Immunosorbent Assay, ELISA). Although further in vivo studies are needed to prove its efficacy, this preliminary in vitro study suggests that the PE might be useful for ameliorating liver inflammation.
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Affiliation(s)
- Maria Pierdomenico
- Division of Health Protection Technologies, ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Rome, Italy
| | | | - Barbara Benassi
- Division of Health Protection Technologies, ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Rome, Italy
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2
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Yi L, Zhang S, Chen X, Wang T, Yi X, Yeerkenbieke G, Shi S, Lu X. Evaluation of the risk of human exposure to thiamethoxam by extrapolation from a toxicokinetic experiment in rats and literature data. ENVIRONMENT INTERNATIONAL 2023; 173:107823. [PMID: 36809708 DOI: 10.1016/j.envint.2023.107823] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/08/2023] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
Previous studies suggest that exposure to thiamethoxam (TMX) may cause adverse effects to human. However, the distribution of TMX in various organs of human body and the associated risk are little-known. This study aimed to explore the distribution of TMX in human organs by extrapolation from a toxicokinetic experiment in rats and to assess the associated risk based on literature data. The rat exposure experiment was performed using 6-week female SD rats. Five groups of rats were oral-exposed to 1 mg/kg TMX (water as solvent) and executed at 1 h, 2 h, 4 h, 8 h and 24 h after treatment, respectively. The concentrations of TMX and its metabolites in rat liver, kidney, blood, brain, muscle, uterus and urine were measured in different time points using LC-MS. Data on concentrations of TMX in food, human urine and blood as well as human cell-based in vitro toxicity of TMX were collected from the literature. After oral exposure, TMX and its metabolite clothianidin (CLO) were detected in all organs of the rats. The steady-state tissue-plasma partition coefficients of TMX for liver, kidney, brain, uterus and muscle were 0.96, 1.53, 0.47, 0.60 and 1.10, respectively. Based on literature analysis, the concentration of TMX in human urine and blood for general population were 0.06-0.5 ng/mL and 0.04-0.6 ng/mL, respectively. For some people, the concentration of TMX in human urine reached 222 ng/mL. By extraplation from rat experiment, the estimated concentrations of TMX in human liver, kidney, brain, uterus and muscle for general population were 0.038-0.58, 0.061-0.92, 0.019-0.28, 0.024-0.36 and 0.044-0.66 ng/g, respectively, well below the relevant concentrations for cytotoxic endpoints (HQs ≤ 0.012); however, for some people they could be up to 253.44, 403.92, 124.08, 158.40 and 290.40 ng/g, respectively, with very high developmental toxicity (HQ = 5.4). Therefore, the risk for highly exposed people should not be neglected.
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Affiliation(s)
- Lijin Yi
- Ministry of Education Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Shuai Zhang
- Ministry of Education Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Xuexia Chen
- Ministry of Education Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Tao Wang
- Ministry of Education Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Xiaolong Yi
- Ministry of Education Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Gulijiazi Yeerkenbieke
- Ministry of Education Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Shuai Shi
- Ministry of Education Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China
| | - Xiaoxia Lu
- Ministry of Education Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China.
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3
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Dimitrijevic D, Fabian E, Nicol B, Funk-Weyer D, Landsiedel R. Toward Realistic Dosimetry In Vitro: Determining Effective Concentrations of Test Substances in Cell Culture and Their Prediction by an In Silico Mass Balance Model. Chem Res Toxicol 2022; 35:1962-1973. [PMID: 36264934 PMCID: PMC9682521 DOI: 10.1021/acs.chemrestox.2c00128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Nominal concentrations (CNom) in cell culture media are routinely used to define concentration-effect relationships in the in vitro toxicology. The actual concentration in the medium (CMedium) can be affected by adsorption processes, evaporation, or degradation of chemicals. Therefore, we measured the total and free concentration of 12 chemicals, covering a wide range of lipophilicity (log KOW -0.07-6.84), in the culture medium (CMedium) and cells (CCell) after incubation with Balb/c 3T3 cells for up to 48 h. Measured values were compared to predictions using an as yet unpublished in silico mass balance model that combined relevant equations from similar models published by others. The total CMedium for all chemicals except tamoxifen (TAM) were similar to the CNom. This was attributed to the cellular uptake of TAM and accumulation into lysosomes. The free (i.e., unbound) CMedium for the low/no protein binding chemicals were similar to the CNom, whereas values of all moderately to highly protein-bound chemicals were less than 30% of the CNom. Of the 12 chemicals, the two most hydrophilic chemicals, acetaminophen (APAP) and caffeine (CAF), were the only ones for which the CCell was the same as the CNom. The CCell for all other chemicals tended to increase over time and were all 2- to 274-fold higher than CNom. Measurements of CCytosol, using a digitonin method to release cytosol, compared well with CCell (using a freeze-thaw method) for four chemicals (CAF, APAP, FLU, and KET), indicating that both methods could be used. The mass balance model predicted the total CMedium within 30% of the measured values for 11 chemicals. The free CMedium of all 12 chemicals were predicted within 3-fold of the measured values. There was a poorer prediction of CCell values, with a median overprediction of 3- to 4-fold. In conclusion, while the number of chemicals in the study is limited, it demonstrates the large differences between CNom and total and free CMedium and CCell, which were also relatively well predicted by the mass balance model.
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Affiliation(s)
- Dunja Dimitrijevic
- Free
University of Berlin, Institute of Pharmacy, Pharmacology and Toxicology, Königin-Luise-Straße
2−4, 14195Berlin, Germany
| | - Eric Fabian
- BASF
SE, Experimental Toxicology and Ecology, Carl-Bosch-Straße 38, 67056Ludwigshafen am Rhein, Germany
| | - Beate Nicol
- Safety
& Environmental Assurance Centre, Unilever
U.K., Sharnbrook, MK44 ILQBedford, United Kingdom
| | - Dorothee Funk-Weyer
- BASF
SE, Experimental Toxicology and Ecology, Carl-Bosch-Straße 38, 67056Ludwigshafen am Rhein, Germany
| | - Robert Landsiedel
- Free
University of Berlin, Institute of Pharmacy, Pharmacology and Toxicology, Königin-Luise-Straße
2−4, 14195Berlin, Germany,BASF
SE, Experimental Toxicology and Ecology, Carl-Bosch-Straße 38, 67056Ludwigshafen am Rhein, Germany,. Fax: +49 621 60-58134
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4
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Abdallah IA, El-Behairy MF, Ahmed RM, Fayed MAA. The anti-COVID-19 drug Favipiravir: Degradation, Method development, Validation, NMR/LC-MS characterization, and In-vitro safety evaluation. CHEMICKE ZVESTI 2022; 76:6415-6426. [PMID: 35812721 PMCID: PMC9251027 DOI: 10.1007/s11696-022-02327-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/07/2022] [Indexed: 11/08/2022]
Abstract
It is critical to characterize the degradation products of therapeutic drugs to determine their safety as these degradation products may possess fatal effects on the human physiological system. Favipiravir (FVP), a novel anti-Covid-19 drug, that is recently used all over the world with a great impact on humanity was our target to explore more about its toxicity, the margins of its safety, and its degradants in different degradation conditions. The goal of this study is to identify, characterize, and confirm the structures of FVP oxidative and alkaline breakdown products, as well as to assess their safety utilizing in-vitro SRB cytotoxicity assay on normal human skin fibroblasts (NHSF) cell lines. After oxidative and alkaline degradation of FVP, one degradation product was produced in each condition which was isolated from FVP using flash chromatography, characterized by 1HNMR and LC-MS/MS techniques. A reversed-phase Thermo Fischer Hypersil C18 column (4.6 × 150 mm, 5 m) was used to achieve HPLC chromatographic separation. Acetonitrile-5 mM potassium dihydrogen phosphate (pH 2.5) (50:50, v/v) was employed as the mobile phase, with a flow rate of 1 mL/min. At 332 nm, the column effluent was measured. Over the concentration range of 0.5-100 µg/mL, the calibration curve was linear. The intra-day and inter-day relative standard deviations were less than 2%, and good percentage recoveries were obtained that fulfilled the acceptance criteria of the International Conference on Harmonization (ICH) recommendations. The Plackett-Burman design was used to assess the robustness. Each degradant was isolated single using Flash chromatography and methylene chloride: methanol gradient mobile phase. The chemical structures of the degradation products have been confirmed and compared to the intact FVP using 1H-NMR, and Mass spectroscopy. A postulated mechanism of the degradation process has been depicted and the degradants fragmentation pattern has been portrayed. In addition, the in vitro SRB cytotoxicity assay to evaluate the safety profile of FVP and the degradation end products showed their high safety margin in both conditions with IC50 ˃100 µg/ml with no signs of toxicity upon examination of the treated NHSF cells under the optical microscope.
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Affiliation(s)
- Inas A. Abdallah
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Sadat City, Sadat City, 32897 Egypt
| | - Mohammed F. El-Behairy
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Sadat City, Sadat City, 32897 Egypt
| | - Rasha M. Ahmed
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Misr International University, Cairo, Egypt
| | - Marwa A. A. Fayed
- Department of Pharmacognosy, Faculty of Pharmacy, University of Sadat City, Sadat City, 32897 Egypt
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5
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In vitro proliferation and long-term preservation of functional primary rat hepatocytes in cell fibers. Sci Rep 2022; 12:8813. [PMID: 35614100 PMCID: PMC9133069 DOI: 10.1038/s41598-022-12679-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 05/11/2022] [Indexed: 11/15/2022] Open
Abstract
Primary hepatocytes are essential cellular resources for drug screening and medical transplantation. While culture systems have already succeeded in reconstituting the biomimetic microenvironment of primary hepatocytes, acquiring additional capabilities to handle them easily as well as to expand them remains unmet needs. This paper describes a culture system for primary rat hepatocytes, based on cell fiber technology, that brings scalability and handleability. Cell fibers are cell-laden core–shell hydrogel microfibers; in the core regions, cells are embedded in extracellular matrix proteins, cultured three-dimensionally, and exposed to soluble growth factors in the culture medium via the hydrogel shells. By encapsulating primary rat hepatocytes within cell fibers, we first demonstrated their proliferation while maintaining their viability and their hepatic specific functions for up to thirty days of subsequent culture. We then demonstrated the efficiency of proliferating primary rat hepatocytes in cell fibers not only as cell-based sensors to detect drugs that damage hepatic functions and hepatocellular processes but also as transplants to improve the plasma albumin concentrations of congenital analbuminemia. Our culture system could therefore be included in innovative strategies and promising developments in applying primary hepatocytes to both pharmaceutical and medical fields.
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Marquês JT, Frazão De Faria C, Reis M, Machado D, Santos S, Santos MDS, Viveiros M, Martins F, De Almeida RFM. In vitro Evaluation of Isoniazid Derivatives as Potential Agents Against Drug-Resistant Tuberculosis. Front Pharmacol 2022; 13:868545. [PMID: 35600870 PMCID: PMC9114799 DOI: 10.3389/fphar.2022.868545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/08/2022] [Indexed: 11/13/2022] Open
Abstract
The upsurge of multidrug-resistant tuberculosis has toughened the challenge to put an end to this epidemic by 2030. In 2020 the number of deaths attributed to tuberculosis increased as compared to 2019 and newly identified multidrug-resistant tuberculosis cases have been stably close to 3%. Such a context stimulated the search for new and more efficient antitubercular compounds, which culminated in the QSAR-oriented design and synthesis of a series of isoniazid derivatives active against Mycobacterium tuberculosis. From these, some prospective isonicotinoyl hydrazones and isonicotinoyl hydrazides are studied in this work. To evaluate if the chemical derivatizations are generating compounds with a good performance concerning several in vitro assays, their cytotoxicity against human liver HepG2 cells was determined and their ability to bind human serum albumin was thoroughly investigated. For the two new derivatives presented in this study, we also determined their lipophilicity and activity against both the wild type and an isoniazid-resistant strain of Mycobacterium tuberculosis carrying the most prevalent mutation on the katG gene, S315T. All compounds were less cytotoxic than many drugs in clinical use with IC50 values after a 72 h challenge always higher than 25 µM. Additionally, all isoniazid derivatives studied exhibited stronger binding to human serum albumin than isoniazid itself, with dissociation constants in the order of 10−4–10−5 M as opposed to 10−3 M, respectively. This suggests that their transport and half-life in the blood stream are likely improved when compared to the parent compound. Furthermore, our results are a strong indication that the N′ = C bond of the hydrazone derivatives of INH tested is essential for their enhanced activity against the mutant strain of M. tuberculosis in comparison to both their reduced counterparts and INH.
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Affiliation(s)
- Joaquim Trigo Marquês
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Catarina Frazão De Faria
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Marina Reis
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- Instituto Superior de Educação e Ciências (ISEC Lisboa), Lisboa, Portugal
| | - Diana Machado
- Unidade de Microbiologia Medica, Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisboa, Portugal
| | - Susana Santos
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Maria da Soledade Santos
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Miguel Viveiros
- Unidade de Microbiologia Medica, Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisboa, Portugal
| | - Filomena Martins
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- *Correspondence: Filomena Martins, ; Rodrigo F. M. De Almeida,
| | - Rodrigo F. M. De Almeida
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- *Correspondence: Filomena Martins, ; Rodrigo F. M. De Almeida,
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7
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Mirahmad M, Sabourian R, Mahdavi M, Larijani B, Safavi M. In vitro cell-based models of drug-induced hepatotoxicity screening: progress and limitation. Drug Metab Rev 2022; 54:161-193. [PMID: 35403528 DOI: 10.1080/03602532.2022.2064487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Drug-induced liver injury (DILI) is one of the major causes of post-approval withdrawal of therapeutics. As a result, there is an increasing need for accurate predictive in vitro assays that reliably detect hepatotoxic drug candidates while reducing drug discovery time, costs, and the number of animal experiments. In vitro hepatocyte-based research has led to an improved comprehension of the underlying mechanisms of chemical toxicity and can assist the prioritization of therapeutic choices with low hepatotoxicity risk. Therefore, several in vitro systems have been generated over the last few decades. This review aims to comprehensively present the development and validation of 2D (two-dimensional) and 3D (three-dimensional) culture approaches on hepatotoxicity screening of compounds and highlight the main factors affecting predictive power of experiments. To this end, we first summarize some of the recognized hepatotoxicity mechanisms and related assays used to appraise DILI mechanisms and then discuss the challenges and limitations of in vitro models.
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Affiliation(s)
- Maryam Mirahmad
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Reyhaneh Sabourian
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maliheh Safavi
- Department of Biotechnology, Iranian Research Organization for Science and Technology, Tehran, Iran
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8
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Valverde MG, Mille LS, Figler KP, Cervantes E, Li VY, Bonventre JV, Masereeuw R, Zhang YS. Biomimetic models of the glomerulus. Nat Rev Nephrol 2022; 18:241-257. [PMID: 35064233 PMCID: PMC9949601 DOI: 10.1038/s41581-021-00528-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2021] [Indexed: 12/17/2022]
Abstract
The use of biomimetic models of the glomerulus has the potential to improve our understanding of the pathogenesis of kidney diseases and to enable progress in therapeutics. Current in vitro models comprise organ-on-a-chip, scaffold-based and organoid approaches. Glomerulus-on-a-chip designs mimic components of glomerular microfluidic flow but lack the inherent complexity of the glomerular filtration barrier. Scaffold-based 3D culture systems and organoids provide greater microenvironmental complexity but do not replicate fluid flows and dynamic responses to fluidic stimuli. As the available models do not accurately model the structure or filtration function of the glomerulus, their applications are limited. An optimal approach to glomerular modelling is yet to be developed, but the field will probably benefit from advances in biofabrication techniques. In particular, 3D bioprinting technologies could enable the fabrication of constructs that recapitulate the complex structure of the glomerulus and the glomerular filtration barrier. The next generation of in vitro glomerular models must be suitable for high(er)-content or/and high(er)-throughput screening to enable continuous and systematic monitoring. Moreover, coupling of glomerular or kidney models with those of other organs is a promising approach to enable modelling of partial or full-body responses to drugs and prediction of therapeutic outcomes.
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Affiliation(s)
- Marta G Valverde
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences (UIPS), Department of Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - Luis S Mille
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA
| | - Kianti P Figler
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA
| | - Ernesto Cervantes
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA
| | - Vanessa Y Li
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA
| | - Joseph V Bonventre
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA.
- Division of Renal Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - Rosalinde Masereeuw
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences (UIPS), Department of Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands.
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA.
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9
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Moussa Z, Darwish DB, Alrdahe SS, Saber WIA. Innovative Artificial-Intelligence- Based Approach for the Biodegradation of Feather Keratin by Bacillus paramycoides, and Cytotoxicity of the Resulting Amino Acids. Front Microbiol 2021; 12:731262. [PMID: 34745034 PMCID: PMC8569898 DOI: 10.3389/fmicb.2021.731262] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 09/27/2021] [Indexed: 11/13/2022] Open
Abstract
The current study reported a new keratinolytic bacterium, which was characterized as Bacillus paramycoides and identified by 16S rRNA, and the sequence was then deposited in the GenBank (MW876249). The bacterium was able to degrade the insoluble chicken feather keratin (CFK) into amino acids (AA) through the keratinase system. The statistical optimization of the biodegradation process into AA was performed based on the Plackett–Burman design and rotatable central composite design (RCCD) on a simple solid-state fermentation medium. The optimum conditions were temperature, 37°C, 0.547 mg KH2PO4, 1.438 mg NH4Cl, and 11.61 days of incubation. Innovatively, the degradation of the CFK process was modeled using the artificial neural network (ANN), which was better than RCCD in modeling the biodegradation process. Differentiation of the AA by high-performance liquid chromatography (HPLC) revealed the presence of 14 AA including essential and non-essential ones; proline and aspartic acids were the most dominant. The toxicity test of AA on the HepG2 cell line did not show any negative effect either on the cell line or on the morphological alteration. B. paramycoides ZW-5 is a new eco-friendly tool for CFK degradation that could be optimized by ANN. However, additional nutritional trials are encouraged on animal models.
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Affiliation(s)
- Zeiad Moussa
- Microbial Activity Unit, Microbiology Department, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza, Egypt
| | - Doaa B Darwish
- Botany Department, Faculty of Science, Mansoura University, Mansoura, Egypt.,Department of Biology, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Salma S Alrdahe
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - WesamEldin I A Saber
- Microbial Activity Unit, Microbiology Department, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza, Egypt
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10
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DiProspero TJ, Dalrymple E, Lockett MR. Physiologically relevant oxygen tensions differentially regulate hepatotoxic responses in HepG2 cells. Toxicol In Vitro 2021; 74:105156. [PMID: 33811995 PMCID: PMC8111698 DOI: 10.1016/j.tiv.2021.105156] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 03/10/2021] [Accepted: 03/29/2021] [Indexed: 01/20/2023]
Abstract
This study evaluates the impact of physiologically relevant oxygen tensions on the response of HepG2 cells to known inducers and hepatotoxic drugs. We compared transcriptional regulation and CYP1A activity after a 48 h exposure at atmospheric culture conditions (20% O2) with representative periportal (8% O2) and perivenous (3% O2) oxygen tensions. We evaluated cellular responses in 2D and 3D cultures at each oxygen tension in parallel, using monolayers and a paper-based culture platform that supports cells suspended in a collagen-rich environment. Our findings highlight that the toxicity, potency, and mechanism of action of drugs are dependent on both culture format and oxygen tension. HepG2 cells in 3D environments at physiologic oxygen tensions better matched primary human hepatocyte data than HepG2 cells cultured under standard conditions. Despite altered transcriptional regulation with decreasing oxygen tensions, we did not observe the zonation patterns of drug-metabolizing enzymes found in vivo. Our approach demonstrates that oxygen is an important regulator of liver function but it is not the sole regulator. It also highlights the utility of the 3D paper-based culture platform for continued mechanistic studies of microenvironmental influences on cellular responses.
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Affiliation(s)
- Thomas J DiProspero
- Department of Chemistry, University of North Carolina at Chapel Hill, Kenan and Caudill Laboratories, Chapel Hill, NC 27599-3290, United States of America
| | - Erin Dalrymple
- Department of Chemistry, University of North Carolina at Chapel Hill, Kenan and Caudill Laboratories, Chapel Hill, NC 27599-3290, United States of America
| | - Matthew R Lockett
- Department of Chemistry, University of North Carolina at Chapel Hill, Kenan and Caudill Laboratories, Chapel Hill, NC 27599-3290, United States of America; Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, 450 West Drive, Chapel Hill, NC 27599-7295, United States of America.
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11
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Saidumohamed BE, Baburaj AP, Johny TK, Sheela UB, Sreeranganathan M, Bhat SG. A magainin-2 like bacteriocin BpSl14 with anticancer action from fish gut Bacillus safensis SDG14. Anal Biochem 2021; 627:114261. [PMID: 34043980 DOI: 10.1016/j.ab.2021.114261] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 05/17/2021] [Accepted: 05/20/2021] [Indexed: 11/18/2022]
Abstract
Bacteriocins are gaining utmost importance in antimicrobial and chemotherapy due to their diverse structure and activity. This study centres on magainin-2 like bacteriocin with anticancer action, produced by Bacillus safensis strain SDG14 isolated from gut of marine fish Sardinella longiceps. The purified bacteriocin designated as BpSl14 was thermostable and pH tolerant. The molecular weight of BpS114 was estimated to be 6061.2 Da using MALDI-ToF MS. The partial primary sequence was elucidated by peptide mass fingerprinting using MALDI MS/MS. The tertiary structure of the partial sequence was similar to that of two magainin-2 α-helices joined together by extended indolicidin. The BpSl14 protein inhibited the cells of lung carcinoma, one of the deadliest cancers. Docking studies conducted with DR5 and TGF-β, two of the most prominent apoptotic receptors in adenocarcinoma, also proved the anti-apoptotic action of BpSl14.
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Affiliation(s)
| | | | - Tina Kollannoor Johny
- Department of Biotechnology, Cochin University of Science and Technology, Cochin, 22, Kerala, India
| | | | - Maya Sreeranganathan
- Division of Cancer Research, Regional Cancer Centre, Thiruvananthapuram, 695011, Kerala, India
| | - Sarita Ganapathy Bhat
- Department of Biotechnology, Cochin University of Science and Technology, Cochin, 22, Kerala, India.
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12
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Serras AS, Rodrigues JS, Cipriano M, Rodrigues AV, Oliveira NG, Miranda JP. A Critical Perspective on 3D Liver Models for Drug Metabolism and Toxicology Studies. Front Cell Dev Biol 2021; 9:626805. [PMID: 33732695 PMCID: PMC7957963 DOI: 10.3389/fcell.2021.626805] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 01/21/2021] [Indexed: 12/12/2022] Open
Abstract
The poor predictability of human liver toxicity is still causing high attrition rates of drug candidates in the pharmaceutical industry at the non-clinical, clinical, and post-marketing authorization stages. This is in part caused by animal models that fail to predict various human adverse drug reactions (ADRs), resulting in undetected hepatotoxicity at the non-clinical phase of drug development. In an effort to increase the prediction of human hepatotoxicity, different approaches to enhance the physiological relevance of hepatic in vitro systems are being pursued. Three-dimensional (3D) or microfluidic technologies allow to better recapitulate hepatocyte organization and cell-matrix contacts, to include additional cell types, to incorporate fluid flow and to create gradients of oxygen and nutrients, which have led to improved differentiated cell phenotype and functionality. This comprehensive review addresses the drug-induced hepatotoxicity mechanisms and the currently available 3D liver in vitro models, their characteristics, as well as their advantages and limitations for human hepatotoxicity assessment. In addition, since toxic responses are greatly dependent on the culture model, a comparative analysis of the toxicity studies performed using two-dimensional (2D) and 3D in vitro strategies with recognized hepatotoxic compounds, such as paracetamol, diclofenac, and troglitazone is performed, further highlighting the need for harmonization of the respective characterization methods. Finally, taking a step forward, we propose a roadmap for the assessment of drugs hepatotoxicity based on fully characterized fit-for-purpose in vitro models, taking advantage of the best of each model, which will ultimately contribute to more informed decision-making in the drug development and risk assessment fields.
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Affiliation(s)
- Ana S. Serras
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Joana S. Rodrigues
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Madalena Cipriano
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Stuttgart, Germany
| | - Armanda V. Rodrigues
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Nuno G. Oliveira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Joana P. Miranda
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
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13
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Qiao S, Feng S, Wu Z, He T, Ma C, Peng Z, Tian E, Pan G. Functional Proliferating Human Hepatocytes: In Vitro Hepatocyte Model for Drug Metabolism, Excretion, and Toxicity. Drug Metab Dispos 2021; 49:305-313. [PMID: 33526515 DOI: 10.1124/dmd.120.000275] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
To develop a functional alternative hepatocyte model for primary human hepatocytes (PHHs) with proliferative property, essential drug metabolic, and transporter functions, proliferating human hepatocytes (ProliHHs) expanded from PHHs were fully characterized in vitro. Herein, ProliHHs generated from multiple PHHs donors could be expanded more than 200-fold within four passages and maintained their metabolic or transporter capacities partially. Furthermore, ProliHHs were able to regain the mature hepatic property after three-dimensional (3D) culture. Particularly, the downregulated mRNA expression and function of three major cytochrome P450 (P450) enzymes (CYP1A2, CYP2B6, and CYP3A4) in the proliferating process (ProliHHs-P) could be recovered by 3D culture. The metabolic variabilities across different PHHs donors could be inherited to their matured ProliHHs (ProliHHs-M). The intrinsic clearances of seven major P450 enzymes in ProliHHs-M correlated well (r = 0.87) with those in PHHs. Also, bile canaliculi structures could be observed in sandwich-cultured ProliHHs (SC-ProliHHs), and the biliary excretion index of four probe compounds [cholyl-lys-fluorescein, 5-(and-6)-carboxy-2', 7'-dichlorofluorescein diacetate (CDF), deuterium-labeled sodium taurocholate acid, and rosuvastatin] in SC-ProliHHs (>10%) were close to sandwich-cultured PHHs. More importantly, both ProliHHs-P and ProliHHs-M could be used to evaluate hepatotoxicity. Therefore, these findings demonstrated that the 3D and sandwich culture system could be used to recover the metabolic and transporter functions in ProliHHs for clearance prediction and cholestasis risk assessment, respectively. Together, ProliHHs could be a promising substitute for PHHs in drug metabolism, transport, and hepatotoxicity screening. SIGNIFICANCE STATEMENT: This report describes the study of drug metabolic capacities, efflux transporter functions, and toxicity assessments of proliferating human hepatocytes (ProliHHs). The metabolic variability in different primary human hepatocyte donors could be inherited by their matured ProliHHs derivatives. Also, ProliHHs could form canalicular networks in sandwich culture and display biliary excretion capacities. More importantly, both the proliferative and maturation statuses of ProliHHs could be used to evaluate hepatotoxicity. Together, ProliHHs were feasible to support drug candidate screening in hepatic metabolism, disposition, and toxicity.
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Affiliation(s)
- Shida Qiao
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (S.Q., Z.W., C.M., Z.P., G.P.); University of Chinese Academy of Sciences, Beijing, China (S.Q., Z.W., C.M., Z.P., G.P.); Shanghai Hexaell Biotech Co., Ltd, Shanghai, China (S.F., E.T.); Nanjing University of Chinese Medicine, Nanjing, China (Z.W.); and Nanjing Tech University, Nanjing, China (T.H.)
| | - Sisi Feng
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (S.Q., Z.W., C.M., Z.P., G.P.); University of Chinese Academy of Sciences, Beijing, China (S.Q., Z.W., C.M., Z.P., G.P.); Shanghai Hexaell Biotech Co., Ltd, Shanghai, China (S.F., E.T.); Nanjing University of Chinese Medicine, Nanjing, China (Z.W.); and Nanjing Tech University, Nanjing, China (T.H.)
| | - Zhitao Wu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (S.Q., Z.W., C.M., Z.P., G.P.); University of Chinese Academy of Sciences, Beijing, China (S.Q., Z.W., C.M., Z.P., G.P.); Shanghai Hexaell Biotech Co., Ltd, Shanghai, China (S.F., E.T.); Nanjing University of Chinese Medicine, Nanjing, China (Z.W.); and Nanjing Tech University, Nanjing, China (T.H.)
| | - Ting He
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (S.Q., Z.W., C.M., Z.P., G.P.); University of Chinese Academy of Sciences, Beijing, China (S.Q., Z.W., C.M., Z.P., G.P.); Shanghai Hexaell Biotech Co., Ltd, Shanghai, China (S.F., E.T.); Nanjing University of Chinese Medicine, Nanjing, China (Z.W.); and Nanjing Tech University, Nanjing, China (T.H.)
| | - Chen Ma
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (S.Q., Z.W., C.M., Z.P., G.P.); University of Chinese Academy of Sciences, Beijing, China (S.Q., Z.W., C.M., Z.P., G.P.); Shanghai Hexaell Biotech Co., Ltd, Shanghai, China (S.F., E.T.); Nanjing University of Chinese Medicine, Nanjing, China (Z.W.); and Nanjing Tech University, Nanjing, China (T.H.)
| | - Zhaoliang Peng
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (S.Q., Z.W., C.M., Z.P., G.P.); University of Chinese Academy of Sciences, Beijing, China (S.Q., Z.W., C.M., Z.P., G.P.); Shanghai Hexaell Biotech Co., Ltd, Shanghai, China (S.F., E.T.); Nanjing University of Chinese Medicine, Nanjing, China (Z.W.); and Nanjing Tech University, Nanjing, China (T.H.)
| | - E Tian
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (S.Q., Z.W., C.M., Z.P., G.P.); University of Chinese Academy of Sciences, Beijing, China (S.Q., Z.W., C.M., Z.P., G.P.); Shanghai Hexaell Biotech Co., Ltd, Shanghai, China (S.F., E.T.); Nanjing University of Chinese Medicine, Nanjing, China (Z.W.); and Nanjing Tech University, Nanjing, China (T.H.)
| | - Guoyu Pan
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (S.Q., Z.W., C.M., Z.P., G.P.); University of Chinese Academy of Sciences, Beijing, China (S.Q., Z.W., C.M., Z.P., G.P.); Shanghai Hexaell Biotech Co., Ltd, Shanghai, China (S.F., E.T.); Nanjing University of Chinese Medicine, Nanjing, China (Z.W.); and Nanjing Tech University, Nanjing, China (T.H.)
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14
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Tseng HH, Huang WR, Cheng CY, Chiu HC, Liao TL, Nielsen BL, Liu HJ. Aspirin and 5-Aminoimidazole-4-carboxamide Riboside Attenuate Bovine Ephemeral Fever Virus Replication by Inhibiting BEFV-Induced Autophagy. Front Immunol 2020; 11:556838. [PMID: 33329515 PMCID: PMC7732683 DOI: 10.3389/fimmu.2020.556838] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 10/21/2020] [Indexed: 12/21/2022] Open
Abstract
Recent study in our laboratory has demonstrated that BEFV-induced autophagy via activation of the PI3K/Akt/NF-κB and Src/JNK pathways and suppression of the PI3K-AKt-mTORC1 pathway is beneficial for virus replication. In the current study, we found that both aspirin and 5-aminoimidazole-4-carboxamide-1-β-riboside (AICAR) siginificantly attenuated virus replication by inhibiting BEFV-induced autophagy via suppressing the BEFV-activated PI3K/Akt/NF-κB and Src/JNK pathways as well as inducing reversion of the BEFV-suppressed PI3K-Akt-mTORC1 pathway. AICAR reversed the BEFV-activated PI3K/Akt/NF-κB and Src/JNK pathways at the early to late stages of infection and induced reversion of the BEFV-suppressed PI3K-AKt-mTORC1 pathway at the late stage of infection. Our findings reveal that inhibition of BEFV-induced autophagy by AICAR is independent of AMPK. Furthermore, we found that AICAR transcriptionally downregulates the ATG related genes ULK1, Beclin 1, and LC3 and enhances Atg7 degradation by the proteasome pathway. Aspirin suppresses virus replication by inhibiting BEFV-induced autophagy. It directly suppressed the NF-κB pathway and reversed the BEFV-activated Src/JNK pathway at the early stage of infection and reversed the BEFV-suppressed PI3K/Akt/mTOR pathway at the late stage of infection. The current study provides mechanistic insights into the effects of aspirin and AICAR on BEFV replication through suppression of BEFV-induced autophagy.
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Affiliation(s)
- Hsu-Hung Tseng
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan.,Division of General Surgery, Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
| | - Wei-Ru Huang
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan.,The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
| | - Ching-Yuan Cheng
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
| | - Hung-Chuan Chiu
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan.,The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
| | - Tsai-Ling Liao
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan.,Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan.,Ph.D Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Brent L Nielsen
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT, United States
| | - Hung-Jen Liu
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan.,The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, Taiwan.,Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan.,Ph.D Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan.,Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
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15
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Tomoda BT, Corazza FG, Beppu MM, Lopes PS, Moraes MA. Silk fibroin membranes with self‐assembled globular structures for controlled drug release. J Appl Polym Sci 2019. [DOI: 10.1002/app.48763] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Bruno Thorihara Tomoda
- Department of Chemical EngineeringInstitute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo Rua São Nicolau 210 Diadema Brazil
| | - Fulvio Gabriel Corazza
- Department of Pharmaceutical SciencesInstitute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo Rua São Nicolau 210 Diadema Brazil
| | - Marisa Masumi Beppu
- School of Chemical Engineering, University of Campinas Avenida Albert Einstein 500 Campinas Brazil
| | - Patricia Santos Lopes
- Department of Pharmaceutical SciencesInstitute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo Rua São Nicolau 210 Diadema Brazil
| | - Mariana Agostini Moraes
- Department of Chemical EngineeringInstitute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo Rua São Nicolau 210 Diadema Brazil
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16
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Sayyed K, Aljebeai AK, Al-Nachar M, Chamieh H, Taha S, Abdel-Razzak Z. Interaction of cigarette smoke condensate and some of its components with chlorpromazine toxicity on Saccharomyces cerevisiae. Drug Chem Toxicol 2019; 45:77-87. [PMID: 31514548 DOI: 10.1080/01480545.2019.1659809] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Chlorpromazine (CPZ) is an antipsychotic phenothiazine which is still commonly prescribed though it causes idiosyncratic toxicity such as cholestasis. CPZ toxicity mechanisms involve oxidative stress among others. Cigarette smoke (CS) causes deleterious effects through diverse mechanisms such as oxidative stress. CS alters drug metabolizing enzymes expression and drug transporters expression and activity in animal cell models as well as in Saccharomyces cerevisiae. CS therefore alters pharmacokinetic and pharmacodynamics of many drugs including CPZ and caffeine whose toxicity is promoted by CS condensate (CSC). CSC interaction with CPZ toxicity deserves investigation. In this study, CSC exerted mild toxicity on Saccharomyces cerevisiae which resisted to this chemical stress after several hours. CPZ toxicity on yeast was dose-dependent and the cells resisted to CPZ up to 40 µM after 24 h of treatment. Yeast cells treated simultaneously with CPZ and a nontoxic CSC dose were less sensitive to CPZ. CSC probably triggers cross-resistance to CPZ. Using Sod1 mutant strain, we showed that this gene is potentially involved in the potential cross-resistance. Other genes encoding stress-related transcription factors could be involved in this process. Nicotine and cadmium chloride, which caused a dose-dependent toxicity individually, acted with CPZ in an additive or synergistic manner in terms of toxicity. Although our results cannot be extrapolated to humans, they clearly show that CSC and its components interact with CPZ toxicity.
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Affiliation(s)
- Katia Sayyed
- EDST-AZM-center-LBA3B - Tripoli and Faculty of Sciences, Lebanese University , Beirut , Lebanon
| | - Abdel-Karim Aljebeai
- EDST-AZM-center-LBA3B - Tripoli and Faculty of Sciences, Lebanese University , Beirut , Lebanon
| | - Mariam Al-Nachar
- EDST-AZM-center-LBA3B - Tripoli and Faculty of Sciences, Lebanese University , Beirut , Lebanon
| | - Hala Chamieh
- EDST-AZM-center-LBA3B - Tripoli and Faculty of Sciences, Lebanese University , Beirut , Lebanon
| | - Samir Taha
- EDST-AZM-center-LBA3B - Tripoli and Faculty of Sciences, Lebanese University , Beirut , Lebanon
| | - Ziad Abdel-Razzak
- EDST-AZM-center-LBA3B - Tripoli and Faculty of Sciences, Lebanese University , Beirut , Lebanon
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17
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Cytotoxicity of lecithin-based nanoemulsions on human skin cells and ex vivo skin permeation: Comparison to conventional surfactant types. Int J Pharm 2019; 566:383-390. [DOI: 10.1016/j.ijpharm.2019.05.078] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 05/29/2019] [Accepted: 05/30/2019] [Indexed: 01/16/2023]
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18
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Bindiya ES, Tina KJ, Sasidharan RS, Bhat SG. BaCf3: highly thermostable bacteriocin from Bacillus amyloliquefaciens BTSS3 antagonistic on food-borne pathogens. 3 Biotech 2019; 9:136. [PMID: 30863715 DOI: 10.1007/s13205-019-1639-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 02/17/2019] [Indexed: 11/25/2022] Open
Abstract
In the present study, we characterized bacteriocin BaCf3, isolated and purified from Bacillus amyloliquefaciens BTSS3, and demonstrated its inhibitory potential on growth and biofilm formation of certain food spoilage bacteria and pathogens. Purification was by gel filtration chromatography and its molecular weight was 3028.422 Da after MALDI-TOF MS. The bacteriocin was highly thermostable withstanding even autoclaving conditions and pH tolerant (2.0-13.0). The bacteriocin was sensitive to oxidizing agent (DMSO) and reducing agent (DTT). The de novo sequence of the bacteriocin BaCf3 was identified and was found to be novel. The sequence analysis shows the presence of a disulphide linkage between C6 and C13. The microtitre plate assay proved that BaCf3 could reduce up to 80% biofilm produced by strong biofilm producers from food samples. In addition, BaCf3 did not show cytotoxicity on 3-TL3 cell line.
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Affiliation(s)
- E S Bindiya
- Department of Biotechnology, Cochin University of Science and Technology, Cochin, 682 022 India
| | - K J Tina
- Department of Biotechnology, Cochin University of Science and Technology, Cochin, 682 022 India
| | - Raghul Subin Sasidharan
- Department of Biotechnology, Cochin University of Science and Technology, Cochin, 682 022 India
| | - Sarita G Bhat
- Department of Biotechnology, Cochin University of Science and Technology, Cochin, 682 022 India
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19
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Takeuchi T, Iizumi Y, Yudasaka M, Kizaka-Kondoh S, Okazaki T. Characterization and Biodistribution Analysis of Oxygen-Doped Single-Walled Carbon Nanotubes Used as in Vivo Fluorescence Imaging Probes. Bioconjug Chem 2019; 30:1323-1330. [PMID: 30848886 DOI: 10.1021/acs.bioconjchem.9b00088] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Single-walled carbon nanotubes (SWCNTs) show strong fluorescence in the 1000-1700 nm second near-infrared (NIR-II) wavelength range and are considered promising candidates for angiographic imaging probes. Oxygen-doped SWCNTs coated with phospholipid-polyethylene glycol (o-SWCNT-PEG) show exceptional potential, as they emit fluorescence at ∼1300 nm through excitation with 980 nm light. Here, with the aim of putting o-SWCNTs to practical use as an angiographic agent in animal experiments, the retention time after intravenous administration in the vasculature of mice and the biodistribution were studied. To provide bio affinity, the o-SWCNTs were coated with phospholipid polyethylene glycol. The intravenously injected o-SWCNT-PEG circulated within the vasculature for 3 h and cleared within 1 day. There was prominent fluorescence and Raman signals from the SWCNTs in the liver and spleen early in the experiment; the signals remained for 1 month. No apparent abnormalities in weight or appearance were observed after 2 months, suggesting low toxicity of o-SWCNT-PEG. These characteristics of o-SWCNT-PEG would make it useful as an angiographic imaging probe in the NIR-II wavelength range.
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Affiliation(s)
- Tsukasa Takeuchi
- School of Life Science and Technology , Tokyo Institute of Technology , 4259 Nagatsuta-cho , Midori-ku, Yokohama , Kanagawa 226-8503 Japan.,Shimadzu Corporation , 1-3 Kanda , Nishiki-cho, Chiyoda , Tokyo 101-8448 , Japan
| | | | | | - Shinae Kizaka-Kondoh
- School of Life Science and Technology , Tokyo Institute of Technology , 4259 Nagatsuta-cho , Midori-ku, Yokohama , Kanagawa 226-8503 Japan
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20
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Ogihara T, Hosono M, Kojima H. [Further investigation of 3D culture spheroid models of human hepatocytes]. Nihon Yakurigaku Zasshi 2019; 153:235-241. [PMID: 31092757 DOI: 10.1254/fpj.153.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Three-dimensional (3D) cultured hepatocyte capable of maintaining liver-specific function in an in vivo state over a relatively long period of time have drawn attention as a new method for evaluating the metabolic process, hepatotoxicity and enzyme induction potential of drugs. When human hepatocytes were seeded on a plate for spheroid formation, and cell morphology and albumin secretion were examined, hepatocyte spheroid was stably maintained for at least 21 days after seeding. As a result of drug exposure to this spheroid, sequential metabolic reactions by Phase I and Phase II enzymes and metabolic reactions peculiar to only humans were observed. Moreover, when several drugs were exposed to spheroids and hepatotoxicity was evaluated, stable values were obtained for the 50% inhibitory concentration (IC50) of albumin secretion at 14 and 21 days. The IC50 values of most of the tested drugs were lower than in conventional assays, suggesting that the reported evaluation methods might underestimate hepatotoxicity. Furthermore, examination of mRNA expression level and activity of various cytochrome P450 (CYP) after exposure of typical inducers of CYPs to hepatocyte spheroid resulted in a significant increase in the expression level and activity of each. From these results, it was shown that this 3D hepatocyte spheroid system is suitable for follow-up of metabolic processes, long-term tests of hepatotoxicity and enzyme activity induction potential of drugs.
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Affiliation(s)
- Takuo Ogihara
- Laboratory of Biopharmaceutics, Department of Pharmacology, Faculty of Pharmacy, Takasaki University of Health and Welfare
| | - Mayu Hosono
- Laboratory of Biopharmaceutics, Department of Pharmacology, Faculty of Pharmacy, Takasaki University of Health and Welfare
| | - Hajime Kojima
- Division of Risk Assessment, Biological Safety Research Center, National Institute of Health Sciences
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21
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Cui J, Wang H, Zheng Z, Shi Q, Sun T, Huang Q, Fukuda T. Fabrication of perfusable 3D hepatic lobule-like constructs through assembly of multiple cell type laden hydrogel microstructures. Biofabrication 2018; 11:015016. [DOI: 10.1088/1758-5090/aaf3c9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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22
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Joshi P, Kang SY, Datar A, Lee MY. High-Throughput Assessment of Mechanistic Toxicity of Chemicals in Miniaturized 3D Cell Culture. ACTA ACUST UNITED AC 2018; 79:e66. [PMID: 30387930 DOI: 10.1002/cptx.66] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
High-content imaging (HCI) assays on two-dimensional (2D) cell cultures often do not represent in vivo characteristics accurately, thus reducing the predictability of drug toxicity/efficacy in vivo. On the other hand, conventional 3D cell cultures are relatively low throughput and possess difficulty in cell imaging. To address these limitations, a miniaturized 3D cell culture has been developed on a micropillar/microwell chip platform with human cells encapsulated in biomimetic hydrogels. Model compounds are used to validate human cell microarrays for high-throughput assessment of mechanistic toxicity. Main mechanisms of toxicity of compounds can be investigated by analyzing multiple parameters such as DNA damage, mitochondrial impairment, intracellular glutathione level, and cell membrane integrity. IC50 values of these parameters can be determined and compared for the compounds to investigate the main mechanism of toxicity. This paper describes miniaturized HCI assays on 3D-cultured cell microarrays for high-throughput assessment of mechanistic profiles of compound-induced toxicity. © 2018 by John Wiley & Sons, Inc.
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Affiliation(s)
- Pranav Joshi
- Department of Chemical and Biomedical Engineering, Cleveland State University, Cleveland, Ohio
| | - Soo-Yeon Kang
- Department of Chemical and Biomedical Engineering, Cleveland State University, Cleveland, Ohio
| | - Akshata Datar
- Department of Chemical and Biomedical Engineering, Cleveland State University, Cleveland, Ohio
| | - Moo-Yeal Lee
- Department of Chemical and Biomedical Engineering, Cleveland State University, Cleveland, Ohio
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23
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Mossoba ME, Vohra S, Toomer H, Pugh-Bishop S, Keltner Z, Topping V, Black T, Olejnik N, Depina A, Belgrave K, Sprando J, Flynn TJ, Wiesenfeld PL, Sprando RL. Diglycolic acid induces HepG2/C3A liver cell toxicity in vitro. Toxicol In Vitro 2018; 52:87-93. [DOI: 10.1016/j.tiv.2018.06.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 05/10/2018] [Accepted: 06/07/2018] [Indexed: 12/20/2022]
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24
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Yazdani M. Comparative toxicity of selected PAHs in rainbow trout hepatocytes: genotoxicity, oxidative stress and cytotoxicity. Drug Chem Toxicol 2018; 43:71-78. [PMID: 30246564 DOI: 10.1080/01480545.2018.1497054] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous contaminants in aquatic ecosystems, which may have potentially toxic effects on organisms. In this study occurrence of DNA strand breaks, oxidative stress, and cytotoxicity were investigated in rainbow trout hepatocytes following in vitro exposure for 24 h to four PAHs (0.01-10 µM): naphthalene, fluoranthene, pyrene, and benzo[a]pyrene (B[a]P). The exposed hepatocytes were analyzed for DNA strand breaks using the comet assay and for antioxidant status by measuring intracellular glutathione (GSH) content using the fluorescent probe mBCl. The cytotoxicity of PAHs was assessed using the fluorescent probe CFDA-AM. The results showed that fluoranthene, pyrene, and B[a]P were genotoxic at all exposure concentrations, whereas naphthalene was genotoxic at concentrations ≥0.1 µM. All treatments reduced the intracellular concentrations of GSH for all four PAHs, except 10 µM of B[a]P, suggesting that some level of oxidative stress was present. The cytotoxic effect was observed for naphthalene at concentrations ≥0.1 µM and pyrene at all exposure concentrations, whereas fluoranthene and B[a]P were not cytotoxic at the tested concentrations. The study shows that low-molecular-weight PAHs may cause DNA strand breaks as high-molecular-weight PAHs do in fish tissue. In addition, two- to five-ring PAHs can induce oxidative stress and cytotoxicity.
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Affiliation(s)
- Mazyar Yazdani
- Department of Medical Biochemistry, Oslo University Hospital, Ullevål, Oslo, Norway
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Metabolic Patterning on a Chip: Towards in vitro Liver Zonation of Primary Rat and Human Hepatocytes. Sci Rep 2018; 8:8951. [PMID: 29895900 PMCID: PMC5997652 DOI: 10.1038/s41598-018-27179-6] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 05/29/2018] [Indexed: 01/15/2023] Open
Abstract
An important number of healthy and diseased tissues shows spatial variations in their metabolic capacities across the tissue. The liver is a prime example of such heterogeneity where the gradual changes in various metabolic activities across the liver sinusoid is termed as “zonation” of the liver. Here, we introduce the Metabolic Patterning on a Chip (MPOC) platform capable of dynamically creating metabolic patterns across the length of a microchamber of liver tissue via actively enforced gradients of various metabolic modulators such as hormones and inducers. Using this platform, we were able to create continuous liver tissues of both rat and human origin with gradually changing metabolic activities. The gradients we have created in nitrogen, carbohydrate and xenobiotic metabolisms recapitulated an in vivo like zonation and zonal toxic response. Beyond its application in recapitulation of liver zonation in vitro as we demonstrate here, the MPOC platform can be used and expanded for a variety of purposes including better understanding of heterogeneity in many different tissues during developmental and adult stages.
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Joshi P, Datar A, Yu KN, Kang SY, Lee MY. High-content imaging assays on a miniaturized 3D cell culture platform. Toxicol In Vitro 2018; 50:147-159. [PMID: 29501531 DOI: 10.1016/j.tiv.2018.02.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 02/19/2018] [Accepted: 02/20/2018] [Indexed: 12/17/2022]
Abstract
The majority of high-content imaging (HCI) assays have been performed on two-dimensional (2D) cell monolayers for its convenience and throughput. However, 2D-cultured cell models often do not represent the in vivo characteristics accurately and therefore reduce the predictability of drug toxicity/efficacy in vivo. Recently, three-dimensional (3D) cell-based HCI assays have been demonstrated to improve predictability, but its use is limited due to difficulty in maneuverability and low throughput in cell imaging. To alleviate these issues, we have developed miniaturized 3D cell culture on a micropillar/microwell chip and demonstrated high-throughput HCI assays for mechanistic toxicity. Briefly, Hep3B human hepatoma cell line was encapsulated in a mixture of alginate and fibrin gel on the micropillar chip, cultured in 3D, and exposed to six model compounds in the microwell chip for rapidly assessing mechanistic hepatotoxicity. Several toxicity parameters, including DNA damage, mitochondrial impairment, intracellular glutathione level, and cell membrane integrity were measured on the chip, and the IC50 values of the compounds at different readouts were determined to investigate the mechanism of toxicity. Overall, the Z' factors were between 0.6 and 0.8 for the HCI assays, and the coefficient of variation (CV) were below 20%. These results indicate high robustness and reproducibility of the HCI assays established on the miniaturized 3D cell culture chip. In addition, it was possible to determine the predominant mechanism of toxicity using the 3D HCI assays. Therefore, our miniaturized 3D cell culture coupled with HCI assays has great potential for high-throughput screening (HTS) of compounds and mechanistic toxicity profiling.
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Affiliation(s)
- Pranav Joshi
- Department of Chemical and Biomedical Engineering, Cleveland State University, 455 Fenn Hall, 1960 East 24th Street, Cleveland, OH 44115-2214, USA
| | - Akshata Datar
- Department of Chemical and Biomedical Engineering, Cleveland State University, 455 Fenn Hall, 1960 East 24th Street, Cleveland, OH 44115-2214, USA
| | - Kyeong-Nam Yu
- Department of Chemical and Biomedical Engineering, Cleveland State University, 455 Fenn Hall, 1960 East 24th Street, Cleveland, OH 44115-2214, USA
| | - Soo-Yeon Kang
- Department of Chemical and Biomedical Engineering, Cleveland State University, 455 Fenn Hall, 1960 East 24th Street, Cleveland, OH 44115-2214, USA
| | - Moo-Yeal Lee
- Department of Chemical and Biomedical Engineering, Cleveland State University, 455 Fenn Hall, 1960 East 24th Street, Cleveland, OH 44115-2214, USA.
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Yousaf M, Tayyeb A, Ali G. Expression profiling of adhesion proteins during prenatal and postnatal liver development in rats. STEM CELLS AND CLONING-ADVANCES AND APPLICATIONS 2017; 10:21-28. [PMID: 29033593 PMCID: PMC5614736 DOI: 10.2147/sccaa.s139497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Culturing of primary hepatocytes and stem cell-derived hepatocytes faces a major issue of dedifferentiation due to absence of cell–cell adhesion and 3D structures. One of the possible ways to eliminate the problem of dedifferentiation is mimicking the expression pattern of adhesion proteins during the normal developmental process of liver cells. The purpose of this study was to evaluate the expression pattern of some key adhesion proteins, namely, E-cadherin, N-cadherin, epithelial CAM (EpCAM), intracellular CAM (ICAM), collagen 1α1, α-actinin, β-catenin and vimentin, in the liver tissue during prenatal and postnatal stages. Furthermore, differences in their expression between prenatal, early postnatal and adult stages were highlighted. Wistar rats were used to isolate livers at prenatal Day 14 and 17 as well as on postnatal Day 1, 3, 7 and 14. The liver from adult rats was used as control. Both conventional and real-time quantitative polymerase chain reactions (PCRs) were performed. For most of the adhesion proteins such as E-cadherin, N-cadherin, EpCAM, ICAM, collagen 1α1 and α-actinin, low expression was observed around prenatal Day 14 and an increasing expression was observed in the postnatal period. Moreover, β-catenin and vimentin showed higher expression in the early prenatal period, which decreased gradually in the postnatal period, but still this low expression was considerably higher than that in the adult control rats. This basic knowledge of the regulation of expression of adhesion proteins during different developmental stages indicates their vital role in liver development. This pattern can be further studied and imitated under in vitro conditions to achieve better cell–cell interactions.
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Affiliation(s)
- Mehwish Yousaf
- National Centre of Excellence in Molecular Biology, University of the Punjab
| | - Asima Tayyeb
- School of Biological Sciences, University of the Punjab, Lahore, Pakistan
| | - Gibran Ali
- National Centre of Excellence in Molecular Biology, University of the Punjab
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Radko L, Minta M, Jedziniak P, Stypuła-Tręba S. Comparison of Albendazole Cytotoxicity in Terms of Metabolite Formation in Four Model Systems. J Vet Res 2017; 61:313-319. [PMID: 29978089 PMCID: PMC5894428 DOI: 10.1515/jvetres-2017-0042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 08/18/2017] [Indexed: 11/15/2022] Open
Abstract
Introduction Albendazole is used to treat endoparasitic diseases in animals and humans. After oral administration, it is quickly oxidised into its pharmacologically active metabolite albendazole sulfoxide and then to sulfone. However, it is not clear which compound is responsible for toxic effects towards mammalian cells. Material and Methods The model systems comprised cultures of isolated rat hepatocytes, two hepatoma cell lines (FaO, HepG2), and non-hepatic Balb/c 3T3 line. Cells were exposed for 24, 48, and 72 h to eight concentrations of albendazole ranging from 0.05 to 100 µg/mL. At all three time points cytotoxic effects were assessed by MTT assay and metabolites in the culture media were determined by LC-MS/MS analysis. Results The effective concentrations EC50-72h showed that Balb/c 3T3 cells were the most sensitive to albendazole (0.2 ±0.1 µg/mL) followed by FaO (1.0 ±0.4 µg/mL), and HepG2 (6.4 ±0.1 µg/mL). In the case of isolated hepatocytes this value could not be attained up to the highest concentration used. Chemical analysis revealed that the concentrations of albendazole in hepatocytes and HepG2 and FaO culture media gradually decreased with incubation time, while the concentrations of its metabolites increased. The metabolism in isolated hepatocytes was dozens of times greater than in HepG2 and FaO cells. Two metabolites (albendazole sulfoxide, albendazole sulfone) were detected in isolated hepatocytes and HepG2 culture medium, one (albendazole sulfoxide) in FaO culture medium and none in Balb/c 3T3. Conclusion The obtained data indicate that metabolism of albendazole leads to its detoxification. The lower cytotoxic potential of metabolites was confirmed in the independent experiments in this study.
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Affiliation(s)
- Lidia Radko
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100 Pulawy, Poland
| | - Maria Minta
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100 Pulawy, Poland
| | - Piotr Jedziniak
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100 Pulawy, Poland
| | - Sylwia Stypuła-Tręba
- Department of Pharmacology and Toxicology, National Veterinary Research Institute, 24-100 Pulawy, Poland
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Transcriptomic characterization of bovine primary cultured hepatocytes; a cross-comparison with a bovine liver and the Madin-Darby bovine kidney cells. Res Vet Sci 2017; 113:40-49. [PMID: 28863307 DOI: 10.1016/j.rvsc.2017.08.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 07/07/2017] [Accepted: 08/07/2017] [Indexed: 02/06/2023]
Abstract
Bovine primary cultured hepatocytes (CHs) are widely used in vitro models for liver toxicity testing. However, little is known about their whole-transcriptome profile and its resemblance to the normal liver tissue. In the present study, we profiled - by microarray - the whole-transcriptome of bovine CHs (n=4) and compared it with the transcriptomic landscape of control liver samples (n=8), as well the Madin-Darby bovine kidney (MDBK) cells (n=4). Compared with liver tissue, the bovine CHs relatively expressed (fold change >2, P<0.05) about 2155 and 2073 transcripts at a lower and higher abundance, respectively. Of those expressed at a lower abundance, many were drug biotransformation enzyme-coding genes, such as the cytochrome P450 family (CYPs), sulfotransferases, methyltransferases, and glutathione S-transferases. Also, several drug transporters and solute carriers were expressed at a lower abundance in bovine CHs. 'Drug metabolism', 'PPAR signaling', and 'metabolism of xenobiotics by CYPs' were among the most negatively-enriched pathways in bovine CHs compared with liver. A qPCR cross-validation using 8 selected genes evidenced a high correlation (r=0.95, P=0.001) with the corresponding microarray results. Although from a kidney origin, and albeit to a lower extent compared to bovine CHs, the MDBK cells showed a basal expression of many CYP-coding genes. Our study provides a whole-transcriptome-based evidence for the bovine CHs and hepatic tissue resemblance. Overall, the bovine CHs' transcriptomic profile might render it unreliable as an in vitro model to study drug metabolism.
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Mannerström M, Toimela T, Sarkanen JR, Heinonen T. Human BJ Fibroblasts is an Alternative to Mouse BALB/c 3T3 Cells in In Vitro Neutral Red Uptake Assay. Basic Clin Pharmacol Toxicol 2017; 121 Suppl 3:109-115. [PMID: 28374970 DOI: 10.1111/bcpt.12790] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 03/29/2017] [Indexed: 11/27/2022]
Abstract
The OECD GD 129 BALB/c 3T3 neutral red uptake (NRU) assay is a standardized test method for estimating starting dose for an acute oral systemic toxicity test in rodents. Mouse BALB/c 3T3 fibroblasts are the most commonly used cells in the NRU assay. We have previously transferred and validated BALB/c 3T3 NRU assay in our GLP laboratory. Subsequently, in order to obtain more human-relevant cytotoxicity data, we performed an intralaboratory validation using human BJ fibroblasts in the NRU assay instead of mouse BALB/c 3T3 fibroblasts. Here, we present comparative cytotoxicity data of 26 different test chemicals (pharmaceuticals, industrial chemicals, pesticides and food additives) produced with both BALB/c 3T3 NRU and BJ NRU assays.
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Affiliation(s)
| | - Tarja Toimela
- FICAM, School of Medicine, University of Tampere, Tampere, Finland
| | | | - Tuula Heinonen
- FICAM, School of Medicine, University of Tampere, Tampere, Finland
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Granitzny A, Knebel J, Müller M, Braun A, Steinberg P, Dasenbrock C, Hansen T. Evaluation of a human in vitro hepatocyte-NPC co-culture model for the prediction of idiosyncratic drug-induced liver injury: A pilot study. Toxicol Rep 2017; 4:89-103. [PMID: 28959630 PMCID: PMC5615103 DOI: 10.1016/j.toxrep.2017.02.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 02/07/2017] [Indexed: 12/16/2022] Open
Abstract
Co-cultures of liver and immune cells can be used to detect iDILI compounds. Pro-inflammatory factors are involved in the development of iDILI. The co-exposure of a drug candidate with TNF might be sufficient to predict iDILI.
Interactions between hepatocytes and immune cells as well as inflammatory episodes are frequently discussed to play a critical role in the alteration of the individual susceptibility to idiosyncratic drug-induced liver injury (iDILI). To evaluate this hypothesis and to face the urgent need for predictive in vitro models, we established two co-culture systems based on two human cell lines in presence or absence of pro-inflammatory factors (LPS, TNF), i.e. hepatoma HepG2 cells co-cultured with monocytic or macrophage-like THP-1 cells. HepG2 monocultures served as control scenario. Mono- or co-cultures were treated with iDILI reference substances (Troglitazone [TGZ], Trovafloxacin [TVX], Diclofenac [DcL], Ketoconazole [KC]) or their non-iDILI partner compounds (Rosiglitazone, Levofloxacin, Acetylsalicylic Acid, Fluconazole). The liver cell viability was subsequently determined via WST-Assay. An enhanced cytotoxicity (synergy) or a hormetic response compared to the drug effect in the HepG2 monoculture was considered as iDILI positive. TGZ synergized in co-cultures with monocytes without an additional pro-inflammatory stimulus, while DcL and KC showed a hormetic response. All iDILI drugs synergized with TNF in the simple HepG2 monoculture, indicating its relevance as an initiator of iDILI. KC showed a synergy when co-exposed to both, monocytes and LPS, while TVX and DcL showed a synergy under the same conditions with macrophages. All described iDILI responses were not observed with the corresponding non-iDILI partner compounds. Our first results confirm that an inflammatory environment increases the sensitivity of liver cells towards iDILI compounds and point to an involvement of pro-inflammatory factors, especially TNF, in the development of iDILI.
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Key Words
- CD, cluster of differentiation
- Co-culture model
- DAMP, damage-associated molecular pattern
- Drug-induced liver injury
- EC, effective concentration
- EpCAM, epithelial cellular adhesion molecule
- HSP, heat shock protein
- Idiosyncratic
- Inflammation
- JNK, c-Jun N-terminal kinase
- LPS, bacterial lipopolysaccharide
- NF-κB, nuclear factor kappa B
- NPC, non-parenchymal cell
- NSAID, nonsteriodal anti-inflammatory drug
- PAMP, pathogen-associated molecular pattern
- Preclinical research
- SD, standard deviation
- TNF, tumor necrosis factor
- iDILI, idiosyncratic drug-induced liver injury
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Affiliation(s)
- Anne Granitzny
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Nikolai-Fuchs-Straße 1, 30625 Hannover, Germany
| | - Jan Knebel
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Nikolai-Fuchs-Straße 1, 30625 Hannover, Germany
| | - Meike Müller
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Nikolai-Fuchs-Straße 1, 30625 Hannover, Germany
| | - Armin Braun
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Member of the German Center for Lung Research (DZL), Biomedical Research in End stage and Obstructive Lung Disease (BREATH) research network, Member of the Cluster of Excellence Regenerative Biology to Reconstructive Therapy (REBIRTH), Nikolai-Fuchs-Straße 1, 30625 Hannover, Germany
| | - Pablo Steinberg
- University of Veterinary Medicine Hannover (TiHo), Institute for Food Toxicology and Analytical Chemistry, Bischofsholer Damm 15, 30173 Hannover, Germany
| | - Clemens Dasenbrock
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Nikolai-Fuchs-Straße 1, 30625 Hannover, Germany
| | - Tanja Hansen
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Nikolai-Fuchs-Straße 1, 30625 Hannover, Germany
- Corresponding author at: Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Department of In vitro and Mechanistic Toxicology, Nikolai-Fuchs-Straße 1, 30625 Hannover, Germany.Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM)Nikolai-Fuchs-Straße 1Hannover30625Germany
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Ogihara T, Arakawa H, Jomura T, Idota Y, Koyama S, Yano K, Kojima H. Utility of human hepatocyte spheroids without feeder cells for evaluation of hepatotoxicity. J Toxicol Sci 2017; 42:499-507. [DOI: 10.2131/jts.42.499] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Takuo Ogihara
- Laboratory of Biopharmaceutics, Department of Pharmacology, Faculty of Pharmacy, Takasaki University of Health and Welfare
- Laboratory of Clinical Pharmacokinetics, Graduate School of Pharmaceutical Sciences,Takasaki University of Health and Welfare
| | - Hiroshi Arakawa
- Laboratory of Biopharmaceutics, Department of Pharmacology, Faculty of Pharmacy, Takasaki University of Health and Welfare
- Faculty of Pharmacy, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University
| | - Tomoko Jomura
- Biotech Application Group Research and Development, Toyo Gosei Co., Ltd
| | - Yoko Idota
- Laboratory of Biopharmaceutics, Department of Pharmacology, Faculty of Pharmacy, Takasaki University of Health and Welfare
| | - Satoshi Koyama
- Laboratory of Biopharmaceutics, Department of Pharmacology, Faculty of Pharmacy, Takasaki University of Health and Welfare
| | - Kentaro Yano
- Laboratory of Biopharmaceutics, Department of Pharmacology, Faculty of Pharmacy, Takasaki University of Health and Welfare
| | - Hajime Kojima
- Division of Risk Assessment, Biological Safety Research Center, National Institute of Health Sciences
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Differential toxicities of albendazole and its two main metabolites to Balb/c 3T3, HepG2, and FaO lines and rat hepatocytes. J Vet Res 2016. [DOI: 10.1515/jvetres-2016-0073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Introduction: The cytotoxicity of anthelmintic agent, albendazole (ABZ) and its two major metabolites, sulfoxide (ABZSO) and sulfone (ABZ-SO2), on non-hepatic Balb/c 3T3 line, two hepatoma cell lines (FaO, HepG2), and isolated rat hepatocytes was investigated. Material and Methods: Cell cultures were exposed for 24, 48, and 72 h to eight concentrations of the compounds ranging from 0.05 to 100 μg/mL (ABZ) and from 0.78 to 100 μg/mL (ABZ-SO and ABZ-SO2). Three different assays were applied in which various biochemical endpoints were assessed: lysosomal activity - neutral red uptake (NRU) assay, proliferation - total protein contents (TPC) assay and lactate dehydrogenase (LDH) leakage assay. Results: The most toxic was albendazole whose EC50 values calculated from the concentration effect curves ranged from 0.2 to 0.5 μg/mL (Balb/c 3T3 ) and from 0.4 to 73.3 μg/mL (HepG2). Rat hepatoma line and isolated rat hepatocytes were less sensitive to the impact of ABZ. Toxic action expressed as EC50 was recorded after 72 h exposure only in LDH release assay at 0.8 μg/mL and 9.7 μg/mL respectively. The toxicity of metabolites was much lower. The most sensitive to ABZ-SO were fibroblasts and EC50-72h values were similar in all three assays used, i.e. NRU (14.1 μg/mL), TPC (15.8 μg/mL), and LDH (20.9 μg/mL). In the case of ABZ-SO2 the mean effective concentrations were the highest, and could be reached only in one LDH assay. These values (μg/mL) were as follows: 65.3 (FaO), 65.4 (HepG2), 75.8 (hepatocytes), and 77.4 (Balb/c 3T3). Conclusion: The differences in in vitro toxicity of albendazole depend on metabolic ability of the cellular models. Primary cultured rat hepatocytes represent a valuable tool to study the impact of biotransformation on the cytotoxicity of drugs.
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Natarajan V, Wilson CL, Hayward SL, Kidambi S. Titanium Dioxide Nanoparticles Trigger Loss of Function and Perturbation of Mitochondrial Dynamics in Primary Hepatocytes. PLoS One 2015; 10:e0134541. [PMID: 26247363 PMCID: PMC4527597 DOI: 10.1371/journal.pone.0134541] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 07/11/2015] [Indexed: 12/29/2022] Open
Abstract
Titanium dioxide (TiO2) nanoparticles are one of the most highly manufactured and employed nanomaterials in the world with applications in copious industrial and consumer products. The liver is a major accumulation site for many nanoparticles, including TiO2, directly through intentional exposure or indirectly through unintentional ingestion via water, food or animals and increased environmental contamination. Growing concerns over the current usage of TiO2 coupled with the lack of mechanistic understanding of its potential health risk is the motivation for this study. Here we determined the toxic effect of three different TiO2 nanoparticles (commercially available rutile, anatase and P25) on primary rat hepatocytes. Specifically, we evaluated events related to hepatocyte functions and mitochondrial dynamics: (1) urea and albumin synthesis using colorimetric and ELISA assays, respectively; (2) redox signaling mechanisms by measuring reactive oxygen species (ROS) production, manganese superoxide dismutase (MnSOD) activity and mitochondrial membrane potential (MMP); (3) OPA1 and Mfn-1 expression that mediates the mitochondrial dynamics by PCR; and (4) mitochondrial morphology by MitoTracker Green FM staining. All three TiO2 nanoparticles induced a significant loss (p < 0.05) in hepatocyte functions even at concentrations as low as 50 ppm with commercially used P25 causing maximum damage. TiO2 nanoparticles induced a strong oxidative stress in primary hepatocytes. TiO2 nanoparticles exposure also resulted in morphological changes in mitochondria and substantial loss in the fusion process, thus impairing the mitochondrial dynamics. Although this study demonstrated that TiO2 nanoparticles exposure resulted in substantial damage to primary hepatocytes, more in vitro and in vivo studies are required to determine the complete toxicological mechanism in primary hepatocytes and subsequently liver function.
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Affiliation(s)
- Vaishaali Natarajan
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, NE, 68588, United States of America
| | - Christina L. Wilson
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, NE, 68588, United States of America
| | - Stephen L. Hayward
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, NE, 68588, United States of America
| | - Srivatsan Kidambi
- Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, NE, 68588, United States of America
- Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, NE, 68588, United States of America
- Mary and Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, NE, 68198, United States of America
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Tasnim F, Phan D, Toh YC, Yu H. Cost-effective differentiation of hepatocyte-like cells from human pluripotent stem cells using small molecules. Biomaterials 2015; 70:115-25. [PMID: 26310107 DOI: 10.1016/j.biomaterials.2015.08.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 08/01/2015] [Indexed: 12/20/2022]
Abstract
Significant efforts have been invested into the differentiation of stem cells into functional hepatocyte-like cells that can be used for cell therapy, disease modeling and drug screening. Most of these efforts have been concentrated on the use of growth factors to recapitulate developmental signals under in vitro conditions. Using small molecules instead of growth factors would provide an attractive alternative since small molecules are cell-permeable and cheaper than growth factors. We have developed a protocol for the differentiation of human embryonic stem cells into hepatocyte-like cells using a predominantly small molecule-based approach (SM-Hep). This 3 step differentiation strategy involves the use of optimized concentrations of LY294002 and bromo-indirubin-3'-oxime (BIO) for the generation of definitive endoderm; sodium butyrate and dimethyl sulfoxide (DMSO) for the generation of hepatoblasts and SB431542 for differentiation into hepatocyte-like cells. Activin A is the only growth factor required in this protocol. Our results showed that SM-Hep were morphologically and functionally similar or better compared to the hepatocytes derived from the growth-factor induced differentiation (GF-Hep) in terms of expression of hepatic markers, urea and albumin production and cytochrome P450 (CYP1A2 and CYP3A4) activities. Cell viability assays following treatment with paradigm hepatotoxicants Acetaminophen, Chlorpromazine, Diclofenac, Digoxin, Quinidine and Troglitazone showed that their sensitivity to these drugs was similar to human primary hepatocytes (PHHs). Using SM-Hep would result in 67% and 81% cost reduction compared to GF-Hep and PHHs respectively. Therefore, SM-Hep can serve as a robust and cost effective replacement for PHHs for drug screening and development.
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Affiliation(s)
- Farah Tasnim
- Institute of Bioengineering and Nanotechnology, #04-01, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Derek Phan
- Institute of Bioengineering and Nanotechnology, #04-01, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Yi-Chin Toh
- Institute of Bioengineering and Nanotechnology, #04-01, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Hanry Yu
- Institute of Bioengineering and Nanotechnology, #04-01, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University Health System, MD9-03-03, 2 Medical Drive, Singapore 117597, Singapore; NUS Graduate School for Integrative Sciences and Engineering, Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore 117576, Singapore; Mechanobiology Institute, T-Labs, #05-01, 5A Engineering Drive 1, Singapore 117411, Singapore; Singapore-MIT Alliance for Research and Technology, 3 Science Drive 2, S16-05-08, Singapore 117543, Singapore; Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, USA.
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Ju SM, Jang HJ, Kim KB, Kim J. High-Throughput Cytotoxicity Testing System of Acetaminophen Using a Microfluidic Device (MFD) in HepG2 Cells. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2015; 78:1063-1072. [PMID: 26241707 DOI: 10.1080/15287394.2015.1068650] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A lab-on-a-chip (LOC) is a microfluidic device (MFD) that integrates several lab functions into a single chip of only millimeters in size. LOC provides several advantages, such as low fluidic volumes consumption, faster analysis, compactness, and massive parallelization. These properties enable a microfluidic-based high-throughput drug screening (HTDS) system to acquire cell-based abundant cytotoxicity results depending on linear gradient concentration of drug with only few hundreds of microliters of the drug. Therefore, a microfluidic device was developed containing an array of eight separate microchambers for cultivating HepG2 cells to be exposed to eight different concentrations of acetaminophen (APAP) through a diffusive-mixing-based concentration gradient generator. Every chamber array with eight different concentrations (0, 5.7, 11.4, 17.1, 22.8, 28.5, 34.2, or 40 mM) APAP had four replicating cell culture chambers. Consequently, 32 experimental results were acquired with a single microfluidic device experiment. The microfluidic high-throughput cytotoxicity device (μHTCD) and 96-well culture system showed comparable cytotoxicity results with increasing APAP concentration of 0 to 40 mM. The HTDS system yields progressive concentration-dependent cytotoxicity results using minimal reagent and time. Data suggest that the HTDS system may be applicable as alternative method for cytotoxicity screening for new drugs in diverse cell types.
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Affiliation(s)
- Seon Min Ju
- a Department of Biomedical Science , Dankook University Graduate School, Dankook University , Cheonan , Chungnam , Republic of Korea
| | - Hyun-Jun Jang
- b College of Pharmacy , Dankook University, Dankook University , Cheonan , Chungnam , Republic of Korea
| | - Kyu-Bong Kim
- b College of Pharmacy , Dankook University, Dankook University , Cheonan , Chungnam , Republic of Korea
| | - Jeongyun Kim
- a Department of Biomedical Science , Dankook University Graduate School, Dankook University , Cheonan , Chungnam , Republic of Korea
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Cytotoxicity of phenothiazine derivatives associated with mitochondrial dysfunction: A structure-activity investigation. Toxicology 2015; 330:44-54. [DOI: 10.1016/j.tox.2015.02.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 02/12/2015] [Accepted: 02/12/2015] [Indexed: 02/01/2023]
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Al-Nimer MSM, Hameed HG, Mahmood MM. Antiproliferative effects of aspirin and diclofenac against the growth of cancer and fibroblast cells: In vitro comparative study. Saudi Pharm J 2015; 23:483-6. [PMID: 26594113 PMCID: PMC4605905 DOI: 10.1016/j.jsps.2015.01.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 01/01/2015] [Indexed: 12/16/2022] Open
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs) inhibit the growth of several cancer cell lines. The aim of this study is to compare the cytotoxic effect of aspirin with diclofenac on the growth of HeLa cell, mammary cell carcinoma, rhabdomyosarcoma and fibroblast cell lines in the culture media. The cells are cultured in RPMI-1640 culture media supplemented with 5% fetal calf serum and antibiotics. Aspirin (5 mg/well) and diclofenac (0.625 mg/well) significantly inhibit the growth of HeLa, rhabdomyosarcoma and fibroblast cells. The cytotoxic effect of aspirin against rhabdomyosarcoma is significantly (p < 0.001) higher than that of diclofenac with a potency approximated 2.6. It concludes that aspirin and diclofenac inhibit the growth of fibroblast and cancer cell by inhibiting the up-regulation of cyclooxygenases enzymes in cancer cells. Aspirin is more effective than diclofenac against the growth of rhabdomyosarcoma cell line.
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Affiliation(s)
- Marwan S M Al-Nimer
- Department of Pharmacology, College of Medicine, Al-Mustansiriya University, Baghdad, Iraq
| | - Huda G Hameed
- Department of Clinical Pharmacy, Al-Yarmouk Teaching Hospital, Ministry of Health, Baghdad, Iraq
| | - Majid M Mahmood
- Department of Biology, College of Science, Al-Mustansiriya University, Baghdad, Iraq
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Ogihara T, Iwai H, Inoue Y, Katagi J, Matsumoto N, Motoi-Ohtsuji M, Kakiki M, Kaneda S, Nagao T, Kusumoto K, Ozeki E, Jomura T, Tanaka S, Ueda T, Ohta K, Ohkura T, Arakawa H, Nagai D. Utility of human hepatocyte spheroids for evaluation of hepatotoxicity. ACTA ACUST UNITED AC 2015. [DOI: 10.2131/fts.2.41] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Takuo Ogihara
- Spheroid Working Group, Safety Evaluation Forum
- Laboratory of Biopharmaceutics, Faculty of Pharmacy, Takasaki University of Health and Welfare
| | - Hisakazu Iwai
- Spheroid Working Group, Safety Evaluation Forum
- Drug Development Center, Sanwa Kagaku Kenkyusho Co., Ltd
| | | | - Jun Katagi
- Spheroid Working Group, Safety Evaluation Forum
- Department of Biology & Pharmacology, Ono Pharmaceutical Co., Ltd
| | - Norihito Matsumoto
- Spheroid Working Group, Safety Evaluation Forum
- Department of Biology & Pharmacology, Ono Pharmaceutical Co., Ltd
| | - Makiko Motoi-Ohtsuji
- Spheroid Working Group, Safety Evaluation Forum
- Drug Metabolism and Pharmacokinetics Japan, Tsukuba Research Laboratories, Eisai Co., Ltd
| | - Motoharu Kakiki
- Spheroid Working Group, Safety Evaluation Forum
- Drug Metabolism and Pharmacokinetics Japan, Tsukuba Research Laboratories, Eisai Co., Ltd
| | - Shinya Kaneda
- Spheroid Working Group, Safety Evaluation Forum
- Naruto Research Institute, Otsuka Pharmaceutical Factory, Inc
| | - Takuya Nagao
- Spheroid Working Group, Safety Evaluation Forum
- Environmental Evaluation Business Division, Sumika Chemical Analysis Service, Ltd
| | - Kumiko Kusumoto
- Spheroid Working Group, Safety Evaluation Forum
- Department of Pathology, Osaka City University Medical School
| | - Emiko Ozeki
- Spheroid Working Group, Safety Evaluation Forum
- Research and Development, Toyo Gosei Co., Ltd
| | - Tomoko Jomura
- Spheroid Working Group, Safety Evaluation Forum
- Research and Development, Toyo Gosei Co., Ltd
| | - Sho Tanaka
- Spheroid Working Group, Safety Evaluation Forum
- Safety Assessment Unit, Toxicological Laboratory, Public Interest Incorporated Foundation BioSafety Research Center
| | - Tadayoshi Ueda
- Spheroid Working Group, Safety Evaluation Forum
- Research & Development Division, Dainippon Sumitomo Pharma Co., Ltd
| | - Kunihiro Ohta
- Spheroid Working Group, Safety Evaluation Forum
- Pre-Clinical Research Department, Chugai Pharmaceutical Co., Ltd
| | - Takako Ohkura
- Spheroid Working Group, Safety Evaluation Forum
- Clinical Development Division, Maruishi Pharmaceutical, Co., Ltd
| | - Hiroshi Arakawa
- Spheroid Working Group, Safety Evaluation Forum
- Laboratory of Biopharmaceutics, Faculty of Pharmacy, Takasaki University of Health and Welfare
| | - Daichi Nagai
- Spheroid Working Group, Safety Evaluation Forum
- Pharmaceutical Research Laboratories, Nippon Kayaku Co., Ltd
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40
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Wang Z, Luo X, Anene-Nzelu C, Yu Y, Hong X, Singh NH, Xia L, Liu S, Yu H. HepaRG culture in tethered spheroids as an in vitro three-dimensional model for drug safety screening. J Appl Toxicol 2014; 35:909-17. [PMID: 25512232 DOI: 10.1002/jat.3090] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 10/15/2014] [Accepted: 10/16/2014] [Indexed: 02/07/2023]
Abstract
Conventional two-dimensional (2D) monolayer cultures of HepaRG cells allow in vitro maintenance of many liver-specific functions. However, cellular dedifferentiation and functional deterioration over an extended culture period in the conventional 2D HepaRG culture have hampered its applications in drug testing. To address this issue, we developed tethered spheroids of HepaRG cells on Arg-Gly-Asp (RGD) and galactose-conjugated substratum with an optimized hybrid ratio as an in vitro three-dimensional (3D) human hepatocyte model. The liver-specific gene expression level and drug metabolizing enzyme activities in HepaRG-tethered spheorids were markedly higher than those in 2D cultures throughout the culture period of 7 days. The inducibility of three major cytochrome P450 (CYP) enzymes, namely CYP1A2, CYP2B6 and CYP3A4, was improved in both mRNA and activity level in tethered spheroids. Drug-induced cytotoxic responses to model hepatotoxins (acetaminophen, chlorpromazine and ketoconazole) in tethered spheroids were comparable to 2D cultures as well as other studies in the literature. Our results suggested that the HepaRG-tethered spheroid would be an alternative in vitro model suitable for drug safety screening.
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Affiliation(s)
- Zenan Wang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, North of Guangzhou Dadao, Guangzhou, 510515, China.,Department of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8, South Road of Workers' Gymnasium, Beijing, 100020, China
| | - Xiaobei Luo
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, North of Guangzhou Dadao, Guangzhou, 510515, China
| | - Chukwuemeka Anene-Nzelu
- Department of Bioengineering, National University of Singapore, Block EA, #03-12, 9 Engineering Drive 1, Singapore, 117576, Singapore
| | - Yu Yu
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Clinical Research Center, #04-25, Singapore, 117597, Singapore
| | - Xin Hong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Clinical Research Center, #04-25, Singapore, 117597, Singapore
| | - Nisha Hari Singh
- Institute of Bioengineering and Nanotechnology, A*STAR, The Nanos, #04-01, 31 Biopolis Way, Singapore, 138669, Singapore
| | - Lei Xia
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Clinical Research Center, #04-25, Singapore, 117597, Singapore
| | - Side Liu
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, North of Guangzhou Dadao, Guangzhou, 510515, China
| | - Hanry Yu
- Department of Bioengineering, National University of Singapore, Block EA, #03-12, 9 Engineering Drive 1, Singapore, 117576, Singapore.,Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Drive, Clinical Research Center, #04-25, Singapore, 117597, Singapore.,Institute of Bioengineering and Nanotechnology, A*STAR, The Nanos, #04-01, 31 Biopolis Way, Singapore, 138669, Singapore.,NUS Graduate School for Integrative Sciences and Engineering, Centre for Life Sciences (CeLS), #05-01, 28 Medical Drive, Singapore, 117576, Singapore.,Singapore-MIT Alliance, Computational and System Biology Program, E4-04-10, 4 Engineering Drive 3, Singapore, 117576, Singapore.,NUS Tissue Engineering Program, DSO Labs, National University of Singapore, Singapore, 117597, Singapore.,Singapore-MIT Alliance for Research and Technology, 3 Science Drive 2, S16-05-08, Singapore, 117543, Singapore.,Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA, 02139, USA
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41
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Jennings P, Schwarz M, Landesmann B, Maggioni S, Goumenou M, Bower D, Leonard MO, Wiseman JS. SEURAT-1 liver gold reference compounds: a mechanism-based review. Arch Toxicol 2014; 88:2099-133. [DOI: 10.1007/s00204-014-1410-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 10/01/2014] [Indexed: 12/20/2022]
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Peng YS, Liu B, Wang RF, Zhao QT, Xu W, Yang XW. Hepatic metabolism: a key component of herbal drugs research. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2014; 17:89-106. [PMID: 25296190 DOI: 10.1080/10286020.2014.960856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Liver is the largest metabolic organ for a wide range of endogenous and exogenous compounds and plays a crucial part in the pharmacokinetics and pharmacodynamics through various metabolic reactions. This review provides a progressive description of hepatic metabolism of herbal drugs with respect to metabolic types and investigational methods. In addition, the problems encountered during the research process are discussed.
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Affiliation(s)
- Yu-Shuai Peng
- a School of Chinese Materia Medica, Beijing University of Chinese Medicine , Beijing 100102 , China
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43
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Tian N, Li X, Luo Y, Han Z, Li Z, Fan C. Curcumin regulates the metabolism of low density lipoproteins by improving the C-to-U RNA editing efficiency of apolipoprotein B in primary rat hepatocytes. Mol Med Rep 2013; 9:132-6. [PMID: 24173373 DOI: 10.3892/mmr.2013.1754] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Accepted: 10/07/2013] [Indexed: 11/06/2022] Open
Abstract
There are two isoforms of apolipoprotein B (apoB) in mammals: apoB-100 and apoB-48. The latter is generated by C-to-U editing of apoB mRNA, catalyzed by the apolipoprotein B mRNA editing enzyme, namely, catalytic polypeptide 1 (APOBEC-1). Lipid particles containing apoB-48 are cleared from the plasma more rapidly than those containing apoB-100 and thus do not contribute to plaque formation in the arterial wall. In the present study, we analyzed whether curcumin is capable of regulating lipid metabolism by improving the level of apoB mRNA editing. The cytotoxicity of curcumin in hepatocytes was determined using the 3-(4,5-dimethylthiazol‑2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and the levels of APOBEC-1 mRNA and protein were analyzed by real-time quantitative polymerase chain reaction (qRT-PCR) and western blotting. The efficiency of apoB mRNA editing was determined by reverse transcription PCR (RT-PCR) products and cloning sequencing analysis. We demonstrated that curcumin concentrations up to 70 µM had no significant cytotoxic effects on primary rat hepatocytes at 24 h. At 15 µM, curcumin significantly increased the expression of APOBEC-1 mRNA and protein, and increased the editing level of apoB mRNA from 3.13 to 7.53%. At 25 µM, curcumin reduced the expression of APOBEC-1; however, it did not affect the apoB mRNA editing level. Our data suggested that curcumin at a concentration of 15 µM raised the level of apoB-48 and reduced the level of apoB-100 by increasing the expression of APOBEC-1 in primary rat hepatocytes; therefore, curcumin may be a novel preventative therapy for atherosclerosis.
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Affiliation(s)
- Nan Tian
- Department of Cell Biology, College of Life Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
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44
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Li M, Yang Y, He ZX, Zhou ZW, Yang T, Guo P, Zhang X, Zhou SF. MicroRNA-561 promotes acetaminophen-induced hepatotoxicity in HepG2 cells and primary human hepatocytes through downregulation of the nuclear receptor corepressor dosage-sensitive sex-reversal adrenal hypoplasia congenital critical region on the X chromosome, gene 1 (DAX-1). Drug Metab Dispos 2013; 42:44-61. [PMID: 24104199 DOI: 10.1124/dmd.113.052670] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
One of the major mechanisms involved in acetaminophen (APAP)-induced hepatotoxicity is hepatocyte nuclear factor 4α (HNF4α)-mediated activation of pregnane X receptor (PXR) and constitutive androstane receptor (CAR). In the present study, we investigated the role of miR-561 and its target gene DAX-1 encoding a corepressor of HNF4α in the process of APAP-induced hepatotoxicity. We used both human hepatocellular liver carcinoma cell line (HepG2) cells and primary human hepatocytes in this study and monitored the levels of reactive oxygen species, lactate dehydrogenase, and glutathione. Our bioinformatics study suggests an association between miR-561 and DAX-1, but not HNF4α. Treatment of HepG2 cells with APAP significantly reduced the expression of DAX-1 in a concentration-dependent manner. miR-561 was induced by APAP treatment in HepG2 cells. Transfection of HepG2 cells with an miR-561 mimic exacerbated APAP-induced hepatotoxicity. HNF4α is physically associated with DAX-1 in HepG2 cells. A decreased protein level of DAX-1 by APAP treatment was also enhanced by miR-561 mimic transfection in HepG2 cells and primary human hepatocytes. The basal and APAP-induced expression of PXR and CAR was enhanced by miR-561 mimic transfection; however, transfection of HepG2 cells or primary human hepatocytes with a miR-561 inhibitor or DAX-1 small interfering RNA reversed these effects. Additionally, the chromatin immunoprecipitation assay revealed that recruitment of DAX-1 onto the PXR promoter was inversely correlated with the recruitment of peroxisome proliferator-activated receptor-α coactivator-1α and HNF4α on APAP treatment. These results indicate that miR-561 worsens APAP-induced hepatotoxicity via inhibition of DAX-1 and consequent transactivation of nuclear receptors.
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Affiliation(s)
- Minghua Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, Florida (M.L., Z.W.Z., S.F.Z.); Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan City, Ningxia Hui Autonomous Region, China (Y.Y.); Guizhou Provincial Key Laboratory for Regenerative Medicine, Stem Cell and Tissue Engineering Research Center, Guiyang Medical University, Guiyang, Guizhou, China (Z.X.H.); Department of Internal Medicine, University of Utah and Salt Lake Veterans Affairs Medical Center, Salt Lake City, Utah (T.Y.); Nanobiotechnology Center and Markey Cancer Center, College of Pharmacy, University of Kentucky, Lexington, Kentucky (P.G.); Research Center for Bioengineering and Sensing Technology, University of Science and Technology Beijing, Beijing, China (X.Z.)
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45
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Guo D, Zhu L, Huang Z, Zhou H, Ge Y, Ma W, Wu J, Zhang X, Zhou X, Zhang Y, Zhao Y, Gu N. Anti-leukemia activity of PVP-coated silver nanoparticles via generation of reactive oxygen species and release of silver ions. Biomaterials 2013; 34:7884-94. [DOI: 10.1016/j.biomaterials.2013.07.015] [Citation(s) in RCA: 208] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 07/03/2013] [Indexed: 02/03/2023]
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46
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In vitro biokinetics of chlorpromazine and the influence of different dose metrics on effect concentrations for cytotoxicity in Balb/c 3T3, Caco-2 and HepaRG cell cultures. Toxicol In Vitro 2013; 27:1057-64. [DOI: 10.1016/j.tiv.2013.01.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 12/24/2012] [Accepted: 01/07/2013] [Indexed: 11/19/2022]
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47
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Albano F, Arcucci A, Granato G, Romano S, Montagnani S, De Vendittis E, Ruocco MR. Markers of mitochondrial dysfunction during the diclofenac-induced apoptosis in melanoma cell lines. Biochimie 2012; 95:934-45. [PMID: 23274131 DOI: 10.1016/j.biochi.2012.12.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 12/14/2012] [Indexed: 10/27/2022]
Abstract
Melanoma is an aggressive cutaneous cancer, whose incidence is growing in recent years, especially in the younger population. The favorable therapy for this neoplasm consists in its early surgical excision; otherwise, in case of late diagnosis, melanoma becomes very refractory to any conventional therapy. Nevertheless, the acute inflammatory response occurring after excision of the primary melanoma can affect the activation and/or regulation of melanoma invasion and metastasis. Nonsteroidal anti-inflammatory drugs (NSAIDs), widely employed in clinical therapy as cyclooxygenase inhibitors, also display a cytotoxic effect on some cancer cell lines; therefore, their possible usage in combination with conventional chemo- and radio-therapies of tumors is being considered. In particular, diclofenac, one of the most common NSAIDs, displays its anti-proliferative effect in many tumor lines, through an alteration of the cellular redox state. In this study, the possible anti-neoplastic potential of diclofenac on the human melanoma cell lines A2058 and SAN was investigated, and a comparison was made with the results obtained from the nonmalignant fibroblast cell line BJ-5ta. Either in A2058 or SAN, the diclofenac treatment caused typical apoptotic morphological changes, as well as an increase of the number of sub-diploid nuclei; conversely, the same treatment on BJ-5ta had only a marginal effect. The observed decrease of Bcl-2/Bax ratio and a parallel increase of caspase-3 activity confirmed the pro-apoptotic role exerted by diclofenac in melanoma cells; furthermore, the drug provoked an increase of the ROS levels, a decrease of mitochondrial superoxide dismutase (SOD2), the cytosolic translocation of both SOD2 and cytochrome c, and an increase of caspase-9 activity. Finally, the cytotoxic effect of diclofenac was amplified, in melanoma cells, by the silencing of SOD2. These data improve the knowledge on the effects of diclofenac and suggest that new anti-neoplastic treatments should be based on the central role of mitochondrion in cancer development; under this concern, the possible involvement of SOD2 as a novel target could be considered.
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Affiliation(s)
- Francesco Albano
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Via S. Pansini 5, 80131 Napoli, Italy
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48
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Fraczek J, Bolleyn J, Vanhaecke T, Rogiers V, Vinken M. Primary hepatocyte cultures for pharmaco-toxicological studies: at the busy crossroad of various anti-dedifferentiation strategies. Arch Toxicol 2012; 87:577-610. [PMID: 23242478 DOI: 10.1007/s00204-012-0983-3] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Accepted: 11/19/2012] [Indexed: 01/24/2023]
Abstract
Continuously increasing understanding of the molecular triggers responsible for the onset of diseases, paralleled by an equally dynamic evolution of chemical synthesis and screening methods, offers an abundance of pharmacological agents with a potential to become new successful drugs. However, before patients can benefit of newly developed pharmaceuticals, stringent safety filters need to be applied to weed out unfavourable drug candidates. Cost effectiveness and the need to identify compound liabilities, without exposing humans to unnecessary risks, has stimulated the shift of the safety studies to the earliest stages of drug discovery and development. In this regard, in vivo relevant organotypic in vitro models have high potential to revolutionize the preclinical safety testing. They can enable automation of the process, to match the requirements of high-throughput screening approaches, while satisfying ethical considerations. Cultures of primary hepatocytes became already an inherent part of the preclinical pharmaco-toxicological testing battery, yet their routine use, particularly for long-term assays, is limited by the progressive deterioration of liver-specific features. The availability of suitable hepatic and other organ-specific in vitro models is, however, of paramount importance in the light of changing European legal regulations in the field of chemical compounds of different origin, which gradually restrict the use of animal studies for safety assessment, as currently witnessed in cosmetic industry. Fortunately, research groups worldwide spare no effort to establish hepatic in vitro systems. In the present review, both classical and innovative methodologies to stabilize the in vivo-like hepatocyte phenotype in culture of primary hepatocytes are presented and discussed.
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Affiliation(s)
- J Fraczek
- Department of Toxicology, Faculty of Medicine and Pharmacy, Centre for Pharmaceutical Research, Vrije Universiteit Brussel, Belgium.
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49
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Karimian G, Buist-Homan M, Faber KN, Moshage H. Pertussis toxin, an inhibitor of G(αi) PCR, inhibits bile acid- and cytokine-induced apoptosis in primary rat hepatocytes. PLoS One 2012; 7:e43156. [PMID: 22900098 PMCID: PMC3416748 DOI: 10.1371/journal.pone.0043156] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Accepted: 07/17/2012] [Indexed: 01/12/2023] Open
Abstract
Excessive hepatocyte apoptosis is a common event in acute and chronic liver diseases leading to loss of functional liver tissue. Approaches to prevent apoptosis have therefore high potential for the treatment of liver disease. G-protein coupled receptors (GPCR) play crucial roles in cell fate (proliferation, cell death) and act through heterotrimeric G-proteins. GαiPCRs have been shown to regulate lipoapoptosis in hepatocytes, but their role in inflammation- or bile acid-induced apoptosis is unknown. Here, we analyzed the effect of inhibiting GαiPCR function, using pertussis toxin (PT), on bile acid- and cytokine-induced apoptosis in hepatocytes. Primary rat hepatocytes, HepG2-rNtcp cells (human hepatocellular carcinoma cells) or H-4-II-E cells (rat hepatoma cells) were exposed to glycochenodeoxycholic acid (GCDCA) or tumor necrosis factor-α (TNFα)/actinomycin D (ActD). PT (50–200 nmol/L) was added 30 minutes prior to the apoptotic stimulus. Apoptosis (caspase-3 activity, acridine orange staining) and necrosis (sytox green staining) were assessed. PT significantly reduced GCDCA- and TNFα/ActD-induced apoptosis in rat hepatocytes (−60%, p<0.05) in a dose-dependent manner (with no shift to necrosis), but not in HepG2-rNtcp cells or rat H-4-II-E cells. The protective effect of pertussis toxin was independent of the activation of selected cell survival signal transduction pathways, including ERK, p38 MAPK, PI3K and PKC pathways, as specific protein kinase inhibitors did not reverse the protective effects of pertussis toxin in GCDCA-exposed hepatocytes. Conclusion: Pertussis toxin, an inhibitor of GαiPCRs, protects hepatocytes, but not hepatocellular carcinoma cells, against bile acid- and cytokine-induced apoptosis and has therapeutic potential as primary hepatoprotective drug, as well as adjuvant in anti-cancer therapy.
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Affiliation(s)
- Golnar Karimian
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
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50
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Kavlock R, Chandler K, Houck K, Hunter S, Judson R, Kleinstreuer N, Knudsen T, Martin M, Padilla S, Reif D, Richard A, Rotroff D, Sipes N, Dix D. Update on EPA's ToxCast program: providing high throughput decision support tools for chemical risk management. Chem Res Toxicol 2012; 25:1287-302. [PMID: 22519603 DOI: 10.1021/tx3000939] [Citation(s) in RCA: 330] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The field of toxicology is on the cusp of a major transformation in how the safety and hazard of chemicals are evaluated for potential effects on human health and the environment. Brought on by the recognition of the limitations of the current paradigm in terms of cost, time, and throughput, combined with the ever increasing power of modern biological tools to probe mechanisms of chemical-biological interactions at finer and finer resolutions, 21st century toxicology is rapidly taking shape. A key element of the new approach is a focus on the molecular and cellular pathways that are the targets of chemical interactions. By understanding toxicity in this manner, we begin to learn how chemicals cause toxicity, as opposed to merely what diseases or health effects they might cause. This deeper understanding leads to increasing confidence in identifying which populations might be at risk, significant susceptibility factors, and key influences on the shape of the dose-response curve. The U. S. Environmental Protection Agency (EPA) initiated the ToxCast, or "toxicity forecaster", program 5 years ago to gain understanding of the strengths and limitations of the new approach by starting to test relatively large numbers (hundreds) of chemicals against an equally large number of biological assays. Using computational approaches, the EPA is building decision support tools based on ToxCast in vitro screening results to help prioritize chemicals for further investigation, as well as developing predictive models for a number of health outcomes. This perspective provides a summary of the initial, proof of concept, Phase I of ToxCast that has laid the groundwork for the next phases and future directions of the program.
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Affiliation(s)
- Robert Kavlock
- National Center for Computational Toxicology, Office of Research and Development, U. S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA.
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