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Savi GD, Torres Zanoni E, Scussel R, Córneo EDS, Guimarães Furtado B, Macuvele DLP, Nones J, Feuser PE, Machado-de-Ávila RA, Angioletto E. Mesoporous silica nanoparticles adsorb aflatoxin B 1 and reduce mycotoxin-induced cell damage. J Environ Sci Health B 2022; 58:1-9. [PMID: 36573540 DOI: 10.1080/03601234.2022.2161251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The present study examined the effects of mesoporous silica nanoparticles (MSNs) on its adsorption capacity of aflatoxin B1 (AFB1). Moreover, the study evaluated the toxicity of MSNs with AFB1 using NIH3T3 cells and hemolysis test. The obtained MSNs were spherical, irregular-like in shape, having a mean size of 39.97 ± 7.85 nm and a BET surface area of 1195 m2/g. At 0.1 mg mL-1 concentration of MSN, the AFB1 adsorption capacity was 30%, which reached 70% when the MSN concentration increased to 2.0 mg mL-1. Our findings showed that AFB1 was adsorbed (∼67%) in the first few minutes on being in contact with MSNs, reaching an adsorption capacity of ∼70% after 15 min. Thereafter, the adsorption capacity remained constant in solution, demonstrating that the MSNs adsorbed toxins even beyond overnight. MSN treatment (0.5-2.0 mg mL-1) using NIH3T3 cells did not result in any reduction in cell viability. In addition, MSN treatment completely reversed the cytotoxic effect of AFB1 at all concentrations. Hemolysis test also revealed no hemolysis in MSNs evaluated alone and in those combined with AFB1. To the best of our knowledge, this study is the first to demonstrate that MSN can reduce cell toxicity produced by AFB1 due to its potential to adsorb mycotoxins.
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Affiliation(s)
- Geovana Dagostim Savi
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Iparque-Parque Científico e Tecnológico, Criciuma, Brazil
| | - Elton Torres Zanoni
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Iparque-Parque Científico e Tecnológico, Criciuma, Brazil
| | - Rahisa Scussel
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Avenida Universitária, Criciuma, Brazil
| | - Emily da Silva Córneo
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Avenida Universitária, Criciuma, Brazil
| | - Bianca Guimarães Furtado
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Iparque-Parque Científico e Tecnológico, Criciuma, Brazil
| | - Domingos Lusitâneo Pier Macuvele
- Núcleo de Estudos em Ciência e Tecnologia (NECET), Universidade Rovuma, Lichinga, Mozambique
- Programa de Pós-Graduação em Engenharia Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Janaína Nones
- Universidade do Vale do Itajaí, Balneário Camboriú, Brasil
| | - Paulo Emilio Feuser
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Avenida Universitária, Criciuma, Brazil
| | - Ricardo Andrez Machado-de-Ávila
- Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense, Avenida Universitária, Criciuma, Brazil
| | - Elidio Angioletto
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Iparque-Parque Científico e Tecnológico, Criciuma, Brazil
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Ahn EY, Shin SW, Kim K, Park Y. Facile Green Synthesis of Titanium Dioxide Nanoparticles by Upcycling Mangosteen (Garcinia mangostana) Pericarp Extract. Nanoscale Res Lett 2022; 17:40. [PMID: 35357581 PMCID: PMC8971259 DOI: 10.1186/s11671-022-03678-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 03/16/2022] [Indexed: 05/06/2023]
Abstract
In the present report, green synthesis of titanium dioxide nanoparticles (TiO2 NPs) was performed by upcycling mangosteen (Garcinia mangostana) pericarp extract (methanol and ethyl acetate extracts). Field emission scanning electron microscopy images revealed an aggregated structure with a highly porous network of TiO2 NPs. TiO2 NPs synthesized with ethyl acetate extract (EtOAc-TiO2 NPs) exhibited more monodispersity and possessed smoother surfaces than the control TiO2 NPs (Con-TiO2 NPs) and TiO2 NPs synthesized with methanol extract (MeOH-TiO2 NPs). High-resolution X-ray diffraction patterns clearly confirmed that TiO2 NPs had a crystalline nature. A mixture of anatase and rutile was observed in Con-TiO2 NPs and MeOH-TiO2 NPs, while EtOAc-TiO2 NPs had only anatase with the smallest size (12.50 ± 1.81 nm). Ethyl acetate extract contained the highest amount of α-mangostin; thus, the surface of TiO2 NPs was functionalized with ethyl acetate extract. The functionalized TiO2 NPs synthesized with ethyl acetate extract (EtOAc-TiO2-αm) showed the highest 2,2-diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl (DPPH) radical scavenging activity. In vitro cell viability on mouse fibroblast cells (NIH3T3) indicated that the newly synthesized TiO2 NPs did not show any significant cytotoxicity. Therefore, the TiO2 NPs in the present report have the potential to be used in cosmetic applications such as sunscreens.
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Affiliation(s)
- Eun-Young Ahn
- College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, 197 Inje-ro, Gimhae, Gyeongnam, 50834, Republic of Korea
| | - Sang-Woo Shin
- Department of Pharmaceutical Engineering, Inje University, 197 Inje-ro, Gimhae, Gyeongnam, 50834, Republic of Korea
| | - Kyeongsoon Kim
- Department of Pharmaceutical Engineering, Inje University, 197 Inje-ro, Gimhae, Gyeongnam, 50834, Republic of Korea
| | - Youmie Park
- College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, 197 Inje-ro, Gimhae, Gyeongnam, 50834, Republic of Korea.
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Hou F, Zhang J, Sun X, Sheng L. Study on the biocompatibility of Ga-based and Al-assisted self-driven liquid metals in cell and animal experiments for drug delivery. Biomed Mater Eng 2021; 32:229-242. [PMID: 33967035 DOI: 10.3233/bme-201146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND With inherent flexibility, high electroconductivity, excellent thermal conductivity, easy printability and biosafety, Ga-based functional liquid metals (LMs) have been extensively evaluated for biomedical applications. When implanted in the biological environment, the safety of the LMs is a major concern for future application. METHODS In this study, we conducted several biocompatibility assessments through immersion experiments, in vitro cytotoxicity experiments and in vivo embedding experiments. RESULTS The results showed that both the Al-assisted self-driven LM and the LM per se own good biocompatibility and retrievable properties when contacted with living organisms for a relatively long period of time. CONCLUSION This study provides preliminary evidence about the biocompatibility of the functional LM materials, such as LM-based soft machine, which would promote and inspire other research to address other tough biomedical issues.
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Affiliation(s)
- Fangxing Hou
- Queen Mary School, Nanchang University, Nanchang, China
| | - Jie Zhang
- Department of Radiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Xuyang Sun
- School of Engineering Medicine, Beihang University, Beijing, China
| | - Lei Sheng
- Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China
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Kuznietsova H, Byelinska I, Dziubenko N, Lynchak O, Milokhov D, Khilya O, Finiuk N, Klyuchivska O, Stoika R, Rybalchenko V. Suppression of systemic inflammation and signs of acute and chronic cholangitis by multi-kinase inhibitor 1-(4-Cl-benzyl)-3-chloro-4-(CF3-phenylamino)-1H-pyrrole-2,5-dione. Mol Cell Biochem 2021; 476:3021-3035. [PMID: 33792809 DOI: 10.1007/s11010-021-04144-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 03/23/2021] [Indexed: 12/12/2022]
Abstract
An aberrant activity of growth factor receptors followed by excessive cell proliferation plays a significant role in pathogenesis of cholangitis. Therefore, inhibition of these processes could be a fruitful therapeutic strategy. The effects of multi-kinase inhibitor 1-(4-Cl-benzyl)-3-chloro-4-(CF3-phenylamino)-1H-pyrrole-2,5-dione (MI-1) on the hepatic and systemic manifestations of acute and chronic cholangitis in rats were addressed. MI-1 (2.7 mg/kg per day) was applied to male rats that experienced α-naphthylisothiocyanate-induced acute (3 days) or chronic (28 days) cholangitis. Liver autopsy samples, blood serum markers, and leukograms were studied. MI-1 localization in liver cells and its impact on viability of HepG2 (human hepatoma), HL60 (human leukemia), and NIH3T3 (normal murine fibroblasts) cell lines and lymphocytes of human peripheral blood (MTT, DNA fragmentation, DNA comet assays, Propidium Iodide staining) were assessed. Under both acute and chronic cholangitis, MI-1 substantially reduced liver injury, fibrosis, and inflammatory scores (by 46-86%) and normalized blood serum markers and leukograms. Moreover, these effects were preserved after a 28-day recovery period (without any treatment). MI-1 inhibited the HL60, HepG2 cells, and human lymphocytes viability (IC50 0.6, 9.5 and 8.3 µg/ml, respectively), while NIH3T3 cells were resistant to that. Additionally, HepG2 cells and lymphocytes being incubated with MI-1 demonstrated insignificant pro-apoptotic and pro-necrotic changes and DNA single-strand breaks, suggesting that MI-1 effects in liver might be partly caused by its cytotoxic action towards liver cells and lymphocytes. In conclusion, MI-1 attenuated the systemic inflammation and signs of acute and chronic cholangitis partly through cytotoxicity towards cells of hepatic and leukocytic origin.
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Affiliation(s)
- Halyna Kuznietsova
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine.
| | - Iryna Byelinska
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | - Natalia Dziubenko
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | - Oksana Lynchak
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | - Demyd Milokhov
- Chemistry Department, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | - Olga Khilya
- Chemistry Department, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | - Nataliya Finiuk
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
- Ivan Franko National University of Lviv, Lviv, Ukraine
| | - Olga Klyuchivska
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
| | - Rostyslav Stoika
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
- Ivan Franko National University of Lviv, Lviv, Ukraine
| | - Volodymyr Rybalchenko
- Institute of High Technologies, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
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Wang X, Song T, Sun Y, Men L, Gu Y, Zhang S, Chen X. Proteomic Analysis Reveals the Effect of Trichostatin A and Bone Marrow-Derived Dendritic Cells on the Fatty Acid Metabolism of NIH3T3 Cells under Oxygen-Glucose Deprivation Conditions. J Proteome Res 2020; 20:960-971. [PMID: 33226813 DOI: 10.1021/acs.jproteome.0c00713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fibroblasts mediate acute wound healing and long-term tissue remodeling with scarring after tissue injury. Following myocardial infarction (MI), necrotized cardiomyocytes become replaced by secreted extracellular matrix proteins produced by fibroblasts. Dendritic cells (DCs) can migrate from the bone marrow to the infarct areas and infarct border areas to mediate collagen accumulation after MI. Trichostatin A (TSA) is known to regulate apoptosis and proliferation in fibroblasts and affect the functions of DCs under oxygen-glucose deprivation (OGD) conditions. In this study, we used label-free quantitative proteomics to investigate the effects of TSA and bone marrow-derived dendritic cells (BMDCs) on NIH3T3 fibroblasts under OGD conditions. The results showed that the fatty acid degradation pathway was significantly upregulated in NIH3T3 cells under OGD conditions and that the fatty acid synthesis pathway was significantly downregulated in NIH3T3 cells treated with conditioned media (CM) from BMDCs treated with TSA under OGD conditions [BMDCs-CM(TSA)]. In addition, BMDCs-CM(TSA) significantly decreased the levels of triglycerides and free fatty acids and mediated fatty acid metabolism-related proteins in NIH3T3 cells under OGD conditions. In summary, this proteomics analysis showed that TSA and BMDCs affect fatty acid metabolism in NIH3T3 cells under OGD conditions.
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Affiliation(s)
- Xuan Wang
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130000, China
| | - Tongtong Song
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130000, China
| | - Yunpeng Sun
- Cardiac Surgery Department, The First Hospital of Jilin University, Changchun 130000, China
| | - Lihui Men
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130000, China
| | - Yiwen Gu
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130000, China
| | - Siwei Zhang
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130000, China
| | - Xia Chen
- Department of Pharmacology, College of Basic Medical Sciences, Jilin University, Changchun 130000, China
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Li XJ, Huang FZ, Wan Y, Li YS, Zhang WK, Xi Y, Tian GH, Tang HB. Lipopolysaccharide Stimulated the Migration of NIH3T3 Cells Through a Positive Feedback Between β-Catenin and COX-2. Front Pharmacol 2018; 9:1487. [PMID: 30618773 PMCID: PMC6305731 DOI: 10.3389/fphar.2018.01487] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 12/04/2018] [Indexed: 02/03/2023] Open
Abstract
How β-catenin/COX-2 contribute to inflammation-induced fibroblasts migration remains poorly understood. Therefore, in this study, lipopolysaccharide (LPS) was used as a stimulus to accelerate the migration of NIH3T3 cells, which mimicked the tissue repair process. LPS treatment increased the cell migration in concentration-and time-dependent manner. And NS398, a COX-2 inhibitor, inhibited LPS-induced NIH3T3 cells migration. DKK-1, an antagonist of the Wnt/β-catenin signaling, also inhibited that migration. However, TWS119, an inducer of β-catenin via GSK-3β, increased the cell migration. LPS or TWS119 treatment increased COX-2, β-catenin, TGF-β1, and HMGB-1 expressions, and that could be attenuated by NS398 or DKK-1 addition. LPS induced the PGE2 production, and PGE2 increased the expression and nuclear translocation of β-catenin, while EP2 blocker, AH6809, alleviated those effects. TWS119 increased the luciferase activity in the COX-2 promoter. In conclusion, LPS stimulated the NIH3T3 fibroblasts migration through a positive feedback between β-catenin and COX-2, in which PGE2, EP2, TGF-β1, and HMGB-1 played as signal molecules.
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Affiliation(s)
- Xiao-Jun Li
- Department of Pharmacology, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Feng-Zhen Huang
- Department of Pharmacology, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Yan Wan
- Department of Pharmacology, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Yu-Sang Li
- Department of Pharmacology, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Wei Kevin Zhang
- Department of Pharmacology, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Yang Xi
- School of Medicine, Institute of Biochemistry and Molecular Biology, Ningbo University, Ningbo, China
| | - Gui-Hua Tian
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - He-Bin Tang
- Department of Pharmacology, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China.,Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.,Research Institute of Huazhong University of Science and Technology, Shenzhen, China
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Zhu HF, Yan PW, Wang LJ, Liu YT, Wen J, Zhang Q, Fan YX, Luo YH. Protective properties of Huperzine A through activation Nrf2/ARE-mediated transcriptional response in X-rays radiation-induced NIH3T3 cells. J Cell Biochem 2018; 119:8359-8367. [PMID: 29932247 DOI: 10.1002/jcb.26919] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 04/04/2018] [Indexed: 01/10/2023]
Abstract
Huperzine A (HupA), derived from Huperzia Serrata, has exhibited a variety of biological actions, in particular neuroprotective effect. However, the protective activities of HupA on murine embryonic fibroblast NIH3T3 cells after X-rays radiation have not been fully elucidated. Herein, HupA treatment dramatically promoted cell viability, abated a G0/G1 peak accumulation, and ameliorated increase of cell apoptosis in NIH3T3 cells after X-rays radiation. Simultaneously, HupA notably enhanced activities of anti-oxidant enzymes, inhibited activity of lipid peroxide, and efficiently eliminated production of reactive oxygen species in NIH3T3 cells after X-rays radiation. Dose-dependent increase of antioxidant genes by HupA were associated with up-regulated Nrf2 and down-regulated Keap-1 expression, which was confirmed by increasing nuclear accumulation, and inhibiting of degradation of Nrf2. Notably, augmented luciferase activity of ARE may explained Nrf2/ARE-mediated signaling pathways behind HupA protective properties. Moreover, expression of Nrf2 HupA-mediated was significant attenuated by AKT inhibitor (LY294002), p38 MAPK inhibitor (SB202190) and ERK inhibitor (PD98059). Besides, HupA-mediated cell viability, and ROS production were dramatically bated by LY294002, SB202190, and PD98059. Taken together, HupA effectively ameliorated X-rays radiation-induced damage Nrf2-ARE-mediated transcriptional response via activation AKT, p38, and ERK signaling in NIH3T3 cells.
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Affiliation(s)
- Huan-Feng Zhu
- Department of Radiotherapy, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Peng-Wei Yan
- Department of Radiotherapy, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Li-Jun Wang
- Department of Radiotherapy, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Ya-Tian Liu
- Department of Radiotherapy, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Jing Wen
- Department of Radiotherapy, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Qian Zhang
- Department of Radiotherapy, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Yan-Xin Fan
- Department of Radiotherapy, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Yan-Hong Luo
- Department of Radiotherapy, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, P.R. China
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Park YR, Sultan MT, Park HJ, Lee JM, Ju HW, Lee OJ, Lee DJ, Kaplan DL, Park CH. NF-κB signaling is key in the wound healing processes of silk fibroin. Acta Biomater 2018; 67:183-195. [PMID: 29242162 DOI: 10.1016/j.actbio.2017.12.006] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/27/2017] [Accepted: 12/04/2017] [Indexed: 11/16/2022]
Abstract
Silk fibroin (SF) is a well-studied biomaterial for tissue engineering applications including wound healing. However, the signaling mechanisms underlying the impact of SF on this phenomenon have not been determined. In this study, through microarray analysis, regulatory genes of NF-ĸB signaling were activated in SF-treated NIH3T3 cells along with other genes. Immunoblot analysis confirmed the activation of the NF-ĸB signaling pathway as SF induced protein expression levels of IKKα, IKKβ, p65, and the degradation of IκBα. The treatment of NIH3T3 cells with SF also increased the expression of cyclin D1, vimentin, fibronectin, and vascular endothelial growth factor (VEGF). The expression of these factors by SF treatment was abrogated when NF-ĸB was inhibited by a pharmacological inhibitor Bay 11-7082. Knockdown of NF-ĸB using siRNA of IKKα and IKKβ also inhibited the SF-induced wound healing response of the NIH3T3 cells in a wound scratch assay. Collectively, these results indicated that SF-induced wound healing through the canonical NF-κB signaling pathway via regulation of the expression of cyclin D1, vimentin, fibronectin, and VEGF by NIH3T3 cells. Using an in vivo study with a partial-thickness excision wound in rats we demonstrated that SF-induced wound healing via NF-κB regulated proteins including cyclin D1, fibronectin, and VEGF. The in vitro and in vivo data suggested that SF induced wound healing via modulation of NF-ĸB signaling regulated proteins. STATEMENT OF SIGNIFICANCE Silk fibroin has been effectively used as a dressing for wound treatment for more than a century. However, mechanistic insight into the basis for wound healing via silk fibroin has not been elucidated. Here we report a key mechanism involved in silk fibroin induced wound healing both in vitro and in vivo. Using genetic- and protein-level analyses, NF-κB signaling was found to regulate silk fibroin-induced wound healing by modulating target proteins. Thus, the NF-κB signaling pathway may be utilized as a therapeutic target during the formulation of silk fibroin-based biomaterials for wound healing and tissue engineering.
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Affiliation(s)
- Ye Ri Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
| | - Md Tipu Sultan
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
| | - Hyun Jung Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
| | - Jung Min Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
| | - Hyung Woo Ju
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
| | - Ok Joo Lee
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea
| | - Dong Jin Lee
- Department of Otolaryngology-Head and Neck Surgery, Ilsong Memorial Institute of Head and Neck Cancer, Hallym University College of Medicine, 150 Seongan-ro, Gangdong-gu, Seoul, South Korea
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Chan Hum Park
- Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 200-702, South Korea; Department of Otorhinolaryngology-Head and Neck Surgery, Chuncheon Sacred Heart Hospital, School of Medicine, Hallym University, Chuncheon 200-702, South Korea.
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Seo HJ, Choi SJ, Lee JH. Paraquat Induces Apoptosis through Cytochrome C Release and ERK Activation. Biomol Ther (Seoul) 2014; 22:503-9. [PMID: 25489417 PMCID: PMC4256029 DOI: 10.4062/biomolther.2014.115] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 10/25/2014] [Accepted: 11/04/2014] [Indexed: 01/18/2023] Open
Abstract
Paraquat has been suggested to induce apoptosis by generation of reactive oxygen species (ROS). However, little is known about the mechanism of paraquat-induced apoptosis. Here, we demonstrate that extracellular signal-regulated protein kinase (ERK) is required for paraquat-induced apoptosis in NIH3T3 cells. Paraquat treatment resulted in activation of ERK, and U0126, inhibitors of the MEK/ERK signaling pathway, prevented apoptosis. Moreover, paraquat-induced apoptosis was associated with cytochrome C release, which could be prevented by treatment with the MEK inhibitors. Taken together, our findings suggest that ERK activation plays an active role in mediating paraquat-induced apoptosis of NIH3T3 cells.
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Affiliation(s)
- Hong Joo Seo
- Department of Thoracic and Cardiovascular Surgery, Chosun University School of Medicine, Gwangju 501-759, Republic of Korea
| | - Sang Joon Choi
- Department of Obstetrics and Gynecology, Chosun University Hospital, Chosun University School of Medicine, Gwangju 501-759, Republic of Korea
| | - Jung-Hee Lee
- Department of Cellular and Molecular Medicine, Chosun University School of Medicine, Gwangju 501-759, Republic of Korea
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