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Ha Y, Lee WH, Kim JK, Jeon HK, Lee J, Kim YJ. Polyopes affinis Suppressed IFN-γ- and TNF-α-Induced Inflammation in Human Keratinocytes via Down-Regulation of the NF-κB and STAT1 Pathways. Molecules 2022; 27:molecules27061836. [PMID: 35335198 PMCID: PMC8954520 DOI: 10.3390/molecules27061836] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/07/2022] [Accepted: 03/09/2022] [Indexed: 01/27/2023] Open
Abstract
Polyopes affinis is a red algal species commonly found on the South coast and near Jeju Island, Korea. This study aimed to determine whether P. affinis extracts can inhibit the pathogenesis of T-helper-2 (Th2)-mediated inflammation in a human keratinocyte cell line of atopic dermatitis (AD). Cells were incubated with 10 ng/mL of interferon gamma (IFN-γ) and 10 ng/mL of tumor necrosis factor-alpha (TNF-α) at various concentrations of PAB (10, 30, and 60 µg/mL) and PAA (100, 500, and 1000 µg/mL) extracts. A gene-ontology (GO)-enrichment analysis revealed that PAB significantly enriched the genes associated with biological processes such as cell adhesion, immune response, inflammation, and chemokine-mediated pathways. PAB suppressed the expression of the secretory proteins and mRNAs that are associated with the thymus and the production of activation-regulated chemokines (TARC/CCL17) and macrophage-derived chemokines (MDC/CCL22). The effect of the extract on mitogen-activated protein kinases (MAPKs) was related to its inhibition of TARC/CCL17 and MDC/CCL22 production by blocking NF-κB and STAT1 activation. These results suggest that seaweed extract may improve AD by regulating pro-inflammatory chemokines. In conclusion, we first confirmed the existence of phloroglucinol, a polyphenol formed from a precursor called phlorotannin, which is present in PAB, and this result proved the possibility of PAB being used as a treatment for AD.
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Affiliation(s)
- Yuna Ha
- Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Korea; (Y.H.); (W.-H.L.); (J.K.K.)
| | - Won-Hwi Lee
- Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Korea; (Y.H.); (W.-H.L.); (J.K.K.)
- Department of Marine Sciences, Incheon National University, Incheon 22012, Korea
| | - Jang Kyun Kim
- Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Korea; (Y.H.); (W.-H.L.); (J.K.K.)
- Department of Marine Sciences, Incheon National University, Incheon 22012, Korea
| | - Hee-Kyung Jeon
- Advanced Energy Materials and Components R&D Group, Korea Institute of Industrial Technology, Busan 46938, Korea;
| | - Jongsung Lee
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon City 16419, Gyunggi Do, Korea
- Correspondence: (J.L.); (Y.-J.K.); Tel.: +82-32-835-8861 (Y.-J.K.)
| | - Youn-Jung Kim
- Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Korea; (Y.H.); (W.-H.L.); (J.K.K.)
- Department of Marine Sciences, Incheon National University, Incheon 22012, Korea
- Correspondence: (J.L.); (Y.-J.K.); Tel.: +82-32-835-8861 (Y.-J.K.)
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2
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Sweet Bee Venom Triggers Multiple Cell Death Pathways or Spurs Acute Cell Rupture According to Its Concentration in THP-1 Monocytic Leukemia Cells. Genes (Basel) 2022; 13:genes13020223. [PMID: 35205267 PMCID: PMC8872029 DOI: 10.3390/genes13020223] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 01/22/2022] [Accepted: 01/23/2022] [Indexed: 02/06/2023] Open
Abstract
Sweet bee venom (sBV) contains various pharmacologically active components of bee venom (BV), but it is modified via the removal of the harmful substances found in BV. Thus, sBV has been used for pain relief in Oriental medicine but has only recently been applied for the treatment of various diseases. In this study, we examined the pharmacological effects and immunomodulatory functions of sBV in THP-1 monocytic leukemia cells. Growth inhibition and cell death were observed according to the concentration of sBV. However, the rapid collapse of cell cycle distribution was shown at 20 μg/mL sBV treatment, indicating that sBV led to cell death or acute cell rupture according to concentration. sBV administration activated Caspase-9, PARP1, RIPK1, and RIPK3, suggesting that the pharmacological actions of sBV were associated with induction of apoptosis and necroptosis. On the other hand, sBV or LPS administration increased cytokine expression, including IL-1β, and showed synergistic cell death in combinatory treatment conditions. Moreover, combinatory administration of sBV and LPS induced severe damage or death during egg development. This result implies that sBV exhibits both pharmacological and toxic effects depending on its concentration. Therefore, sBV might be a promising therapeutic approach, but optimal concentration should be considered before treatment.
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3
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Treml J, Šalamúnová P, Hanuš J, Hošek J. The effect of curcumin encapsulation into yeast glucan particles on antioxidant enzyme expression in vitro. Food Funct 2021; 12:1954-1957. [PMID: 33527919 DOI: 10.1039/d0fo03237a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Glucan particles (GPs) from Saccharomyces cerevisiae consist mainly of β-1,3-d-glucan. Curcumin is a phenolic compound of plant origin. A 24 h incubation with a mixture of GPs and curcumin increased the expression of the Nrf2 protein and increased the activation of the Nrf2-ARE system significantly.
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Affiliation(s)
- Jakub Treml
- Department of Molecular Pharmacy, Faculty of Pharmacy, Masaryk University, Palackého 1946/1, 612 00 Brno, Czech Republic.
| | - Petra Šalamúnová
- Department of Chemical Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic
| | - Jaroslav Hanuš
- Department of Chemical Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic
| | - Jan Hošek
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00 Brno, Czech Republic
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4
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Belvedere R, Pessolano E, Novizio N, Tosco A, Eletto D, Porta A, Filippelli A, Petrella F, Petrella A. The promising pro-healing role of the association of mesoglycan and lactoferrin on skin lesions. Eur J Pharm Sci 2021; 163:105886. [PMID: 34022411 DOI: 10.1016/j.ejps.2021.105886] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/10/2021] [Accepted: 05/14/2021] [Indexed: 11/26/2022]
Abstract
Skin wound repair represents an important topic for the therapeutic challenges. Many molecules are commonly used as active principles of topical devices to induce the correct tissue regeneration. Among these molecules, mesoglycan, a mixture of glycosaminoglycans, and the lactoferrin have recently aroused interest. Here, for the first time, we used mesoglycan/lactoferrin to treat the cell populations mainly involved in wound healing. We showed that human keratinocytes, fibroblasts and endothelial cells migrate and invade more rapidly when treated with the association. Moreover, we found that mesoglycan/lactoferrin, are able to trigger the differentiation process of keratinocytes, the switch of the fibroblasts into myofibroblasts, the acquisition of a mesenchymal phenotype for the endothelial cells which, in this way, start to form the capillary-like structures. Additionally, we proved that the well known antimicrobial behavior of lactoferrin encourages the inhibition of S. aureus and P. aeruginosa biofilm formation by the whole association, providing an appealing feature for this formulation. Finally, by the in vivo analysis, we showed that the mesoglycan/lactoferrin favors the closure of skin wounds performed on the mice back. Beside the decrease of the lesion diameters, by a confocal analysis of mice biopsies we found that the use of the association strongly promote cell activation underlying the correct tissue regeneration. These results encourage to further investigation aiming the development of a new topical patch that includes this association.
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Affiliation(s)
| | | | - Nunzia Novizio
- Department of Pharmacy, University of Salerno, Fisciano (SA) Italy
| | - Alessandra Tosco
- Department of Pharmacy, University of Salerno, Fisciano (SA) Italy
| | - Daniela Eletto
- Department of Pharmacy, University of Salerno, Fisciano (SA) Italy
| | - Amalia Porta
- Department of Pharmacy, University of Salerno, Fisciano (SA) Italy
| | - Amelia Filippelli
- Department of Medicine, Surgery and Dentistry, University of Salerno, Baronissi (SA), Italy
| | - Francesco Petrella
- Primary Care - Wound Care Service, Health Local Agency Naples 3 South, Via Libertà 42, 80055 Portici (Napoli), Italy
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5
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Hunt DWC, Ivanova IA, Dagnino L. DRM02, a novel phosphodiesterase-4 inhibitor with cutaneous anti-inflammatory activity. Tissue Barriers 2020; 8:1765633. [PMID: 32479135 DOI: 10.1080/21688370.2020.1765633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Chronic inflammatory skin disorders are frequently associated with impaired skin barrier function. Selective phosphodiesterase-4 (PDE4) inhibition constitutes an effective therapeutic strategy for the treatment of inflammatory skin diseases. We now report the pharmacological anti-inflammatory profile of DRM02, a novel pyrazolylbenzothiazole derivative with selective in vitro inhibitory activity toward PDE4 isoforms A, B and D. DRM02 treatment of cultured primary human and mouse epidermal keratinocytes interfered with pro-inflammatory cytokine production elicited by interleukin-1α and tumor necrosis factor-α. Similarly, DRM02 inhibited the production of pro-inflammatory cytokines by human peripheral blood mononuclear cells ex vivo and cultured THP-1 monocyte-like cells, with IC50 values of 0.6-14 µM. These anti-inflammatory properties of DRM02 were associated with dose-dependent repression of nuclear factor-κB (NF-κB) transcriptional activity. In skin inflammation in vivo mouse models, topically applied DRM02 inhibited the acute response to phorbol ester and induced Th2-type contact hypersensitivity reactivity. Further, DRM02 also decreased cutaneous clinical changes and expression of Th17 immune pathway cytokines in a mouse model of psoriasis evoked by repeated topical imiquimod application. Thus, the overall pharmacological profiling of the PDE4 inhibitor DRM02 has revealed its potential as a topical therapy for inflammatory skin disorders and restoration of skin homeostasis.
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Affiliation(s)
| | - Iordanka A Ivanova
- Department of Physiology and Pharmacology, University of Western Ontario , London, Canada
| | - Lina Dagnino
- Department of Physiology and Pharmacology, University of Western Ontario , London, Canada.,Department of Oncology, University of Western Ontario , London, Canada
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Paramanantham A, Kim MJ, Jung EJ, Nagappan A, Yun JW, Kim HJ, Shin SC, Kim GS, Lee WS. Pretreatment of Anthocyanin from the Fruit of Vitis coignetiae Pulliat Acts as a Potent Inhibitor of TNF-α Effect by Inhibiting NF-κB-Regulated Genes in Human Breast Cancer Cells. Molecules 2020; 25:molecules25102396. [PMID: 32455624 PMCID: PMC7287973 DOI: 10.3390/molecules25102396] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/08/2020] [Accepted: 05/09/2020] [Indexed: 12/24/2022] Open
Abstract
Vitis coignetiaePulliat (Meoru in Korea) has been used in Korean folk medicine for the treatment of inflammatory diseases and cancers. Evidence suggests that NF-κB activation is mainly involved in cancer cell proliferation, invasion, angiogenesis, and metastasis. TNF-α also enhances the inflammatory process in tumor development. Recently, flavonoids from plants have been reported to have inhibitory effects on NF-κB activities. We investigated the effects of anthocyanins extracted from the fruits of Vitis coignetiae Pulliat (AIM, anthocyanins isolated from Meoru (AIM)) on TNF-α-induced NF-κB activities in MCF-7 human breast cancer cells and the molecules involved in AIM-induced anti-cancer effects, especially on cancer metastasis. We performed cell viability assay, gelatin zymography, invasion assay, and western blot analysis to unravel the anti-NF-κB activity of AIMs on MCF-7 cells. AIM suppressed the TNF-α effects on the NF-κB-regulated proteins involved in cancer cell proliferation (COX-2, C-myc), invasion, and angiogenesis (MMP-2, MMP9, ICAM-1, and VEGF). AIM also increased the expression of E-cadherin, which is one of the hallmarks of the epithelial-mesenchymal transition (EMT) process. In conclusion, this study demonstrates that the anthocyanins isolated from the fruits of Vitis coignetiae Pulliat acts as an inhibitor of TNF-α induced NF-κB activation, and subsequent downstream molecules involved in cancer proliferation, invasion, adhesion, angiogenesis, and thus have anti-metastatic activities in MCF-7 breast cancer cells.
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Affiliation(s)
- Anjugam Paramanantham
- Departments of Internal Medicine, Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju 660-702, Korea; (A.P.); (M.J.K.); (A.N.); (J.W.Y.)
- Research Institute of Life science and College of Veterinary Medicine, Gyeongsang National University, 501 Jinju-daero, Jinju 52828, Korea
| | - Min Jeong Kim
- Departments of Internal Medicine, Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju 660-702, Korea; (A.P.); (M.J.K.); (A.N.); (J.W.Y.)
| | - Eun Joo Jung
- Departments of Biochemistry, Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju 660-702, Korea;
| | - Arulkumar Nagappan
- Departments of Internal Medicine, Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju 660-702, Korea; (A.P.); (M.J.K.); (A.N.); (J.W.Y.)
| | - Jeong Won Yun
- Departments of Internal Medicine, Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju 660-702, Korea; (A.P.); (M.J.K.); (A.N.); (J.W.Y.)
| | - Hye Jung Kim
- Departments of Pharmacology, Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju 660-702, Korea;
| | - Sung Chul Shin
- Department of Chemistry, Research Institute of Life Science, Gyeongsang National University, Jinju 660-701, Korea;
| | - Gon Sup Kim
- Research Institute of Life science and College of Veterinary Medicine, Gyeongsang National University, 501 Jinju-daero, Jinju 52828, Korea
- Correspondence: (G.S.K.); (W.S.L.); Tel.: +82-55-772-2356 (G.S.K.); +82-55-750-8733 (W.S.L.)
| | - Won Sup Lee
- Departments of Internal Medicine, Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju 660-702, Korea; (A.P.); (M.J.K.); (A.N.); (J.W.Y.)
- Correspondence: (G.S.K.); (W.S.L.); Tel.: +82-55-772-2356 (G.S.K.); +82-55-750-8733 (W.S.L.)
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7
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Mohammadian Haftcheshmeh S, Karimzadeh MR, Azhdari S, Vahedi P, Abdollahi E, Momtazi-Borojeni AA. Modulatory effects of curcumin on the atherogenic activities of inflammatory monocytes: Evidence from in vitro and animal models of human atherosclerosis. Biofactors 2020; 46:341-355. [PMID: 31875344 DOI: 10.1002/biof.1603] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 12/11/2019] [Indexed: 12/14/2022]
Abstract
Atherosclerosis is a complex and long-lasting disorder characterized by chronic inflammation of arteries that leads to the initiation and progression of lipid-rich plaques, in which monocytes/macrophages play the central role in endothelial inflammation and taking up these lipids. Circulating monocytes can adopt a long-term proinflammatory phenotype leading to their atherogenic activities. During atherogenic condition, inflammatory monocytes adhere to the surface of the activated endothelial cells and then transmigrate across the endothelial monolayer into the intima, where they proliferate and differentiate into macrophages and take up the lipoproteins, forming foam cells that derive atherosclerosis progression. Therefore, modulating the atherogenic activities of inflammatory monocytes can provide a valuable therapeutic approach for atherosclerosis prevention and treatment. Curcumin is a naturally occurring polyphenolic compound with numerous pharmacological activities and shows protective effects against atherosclerosis; however, underlying mechanisms are not clearly known yet. In the present review, on the basis of a growing body of evidence, we show that curcumin can exert antiatherosclerotic effect through inhibiting the atherogenic properties of monocytes, including inflammatory cytokine production, adhesion, and transendothelial migration, as well as intracellular cholesterol accumulation.
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Affiliation(s)
| | - Mohammad R Karimzadeh
- Department of Medical Genetics, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Sara Azhdari
- Department of Anatomy and Embryology, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Parviz Vahedi
- Department of Anatomical Sciences, Maragheh University of Medical Sciences, Maragheh, Iran
| | - Elham Abdollahi
- Department of Medical Immunology and Allergy, Student Research Committee, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir A Momtazi-Borojeni
- Halal Research Center of IRI, FDA, Tehran, Iran
- Nanotechnology Research Center, Bu-Ali Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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8
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Magrin GL, Di Summa F, Strauss FJ, Panahipour L, Mildner M, Magalhães Benfatti CA, Gruber R. Butyrate Decreases ICAM-1 Expression in Human Oral Squamous Cell Carcinoma Cells. Int J Mol Sci 2020; 21:ijms21051679. [PMID: 32121422 PMCID: PMC7084181 DOI: 10.3390/ijms21051679] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/20/2020] [Accepted: 02/27/2020] [Indexed: 12/15/2022] Open
Abstract
Short-chain fatty acids (SCFA) are bacterial metabolites that can be found in periodontal pockets. The expression of adhesion molecules such as intercellular adhesion molecule-1 (ICAM-1) within the epithelium pocket is considered to be a key event for the selective transmigration of leucocytes towards the gingival sulcus. However, the impact of SCFA on ICAM-1 expression by oral epithelial cells remains unclear. We therefore exposed the oral squamous carcinoma cell line HSC-2, primary oral epithelial cells and human gingival fibroblasts to SCFA, namely acetate, propionate and butyrate, and stimulated with known inducers of ICAM-1 such as interleukin-1-beta (IL1β) and tumor necrosis factor-alfa (TNFα). We report here that butyrate but not acetate or propionate significantly suppressed the cytokine-induced ICAM-1 expression in HSC-2 epithelial cells and primary epithelial cells. The G-protein coupled receptor-43 (GPR43/ FFAR2) agonist but not the histone deacetylase inhibitor, trichostatin A, mimicked the butyrate effects. Butyrate also attenuated the nuclear translocation of p65 into the nucleus on HSC-2 cells. The decrease of ICAM-1 was independent of Nrf2/HO-1 signaling and phosphorylation of JNK and p38. Nevertheless, butyrate could not reverse an ongoing cytokine-induced ICAM-1 expression in HSC-2 cells. Overall, these observations suggest that butyrate can attenuate cytokine-induced ICAM-1 expression in cells with epithelial origin.
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Affiliation(s)
- Gabriel Leonardo Magrin
- Department of Oral Biology, School of Dentistry, Medical University of Vienna, Sensengasse 2a, Vienna 1090, Austria; (G.L.M.); (F.D.S.); (F.-J.S.); (L.P.)
- Center for Education and Research on Dental Implants (CEPID), Department of Dentistry, School of Dentistry, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima s/n, Florianopolis – SC 88040-900, Brazil;
| | - Francesca Di Summa
- Department of Oral Biology, School of Dentistry, Medical University of Vienna, Sensengasse 2a, Vienna 1090, Austria; (G.L.M.); (F.D.S.); (F.-J.S.); (L.P.)
| | - Franz-Josef Strauss
- Department of Oral Biology, School of Dentistry, Medical University of Vienna, Sensengasse 2a, Vienna 1090, Austria; (G.L.M.); (F.D.S.); (F.-J.S.); (L.P.)
- Department of Conservative Dentistry, School of Dentistry, University of Chile, Av. Sergio Livingstone 943, Santiago 7500566, Chile
- Clinic of Reconstructive Dentistry, University of Zurich, 8032 Zurich, Switzerland
| | - Layla Panahipour
- Department of Oral Biology, School of Dentistry, Medical University of Vienna, Sensengasse 2a, Vienna 1090, Austria; (G.L.M.); (F.D.S.); (F.-J.S.); (L.P.)
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, Spitalgasse 23, Vienna 1090, Austria;
| | - Cesar Augusto Magalhães Benfatti
- Center for Education and Research on Dental Implants (CEPID), Department of Dentistry, School of Dentistry, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima s/n, Florianopolis – SC 88040-900, Brazil;
| | - Reinhard Gruber
- Department of Oral Biology, School of Dentistry, Medical University of Vienna, Sensengasse 2a, Vienna 1090, Austria; (G.L.M.); (F.D.S.); (F.-J.S.); (L.P.)
- Department of Periodontology, University Bern, Hochschulstrasse 4, 3012 Bern, Switzerland
- Correspondence:
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9
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Sudirman S, Lai CS, Yan YL, Yeh HI, Kong ZL. Histological evidence of chitosan-encapsulated curcumin suppresses heart and kidney damages on streptozotocin-induced type-1 diabetes in mice model. Sci Rep 2019; 9:15233. [PMID: 31645652 PMCID: PMC6811681 DOI: 10.1038/s41598-019-51821-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 09/18/2019] [Indexed: 01/01/2023] Open
Abstract
High blood glucose in diabetic patients often causes cardiovascular diseases (CVDs) that threats to human life. Curcumin (Cur) is known as an antioxidant agent, possesses anti-inflammatory activity, and prevents CVDs. However, the clinical application of curcumin was limited due to its low bioavailability. This study aimed to investigate the ameliorative effects of chitosan-encapsulated curcumin (CEC) on heart and kidney damages in streptozotocin-induced type-1 diabetes C57BL/6 mice model. The results showed that Cur- and CEC-treatments downregulated the blood sugar and total cholesterol level as well as enhanced insulin secretion. However, blood pressure, triglycerides content, and very low-density lipoprotein-cholesterol content were not changed. Histochemistry analysis revealed that both curcumin and chitosan-encapsulated curcumin ameliorated cell hypertrophy and nucleus enlargement in the left ventricular of heart and reduced fibrosis in the kidney, especially after the chitosan-encapsulated curcumin treatment. Our study suggested that chitosan can effectively enhance the protective effect of curcumin on the heart and kidney damages in type-1 diabetes mice model.
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Affiliation(s)
- Sabri Sudirman
- Department of Food Science, National Taiwan Ocean University, Keelung City, 202, Taiwan
| | - Ching-Shu Lai
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung, 811, Taiwan
| | - Yi-Ling Yan
- Department of Food Science, National Taiwan Ocean University, Keelung City, 202, Taiwan
| | - Hung-I Yeh
- Department of Medicine, Mackay Medical College, New Taipei City, 252, Taiwan
| | - Zwe-Ling Kong
- Department of Food Science, National Taiwan Ocean University, Keelung City, 202, Taiwan.
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10
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Mhillaj E, Tarozzi A, Pruccoli L, Cuomo V, Trabace L, Mancuso C. Curcumin and Heme Oxygenase: Neuroprotection and Beyond. Int J Mol Sci 2019; 20:E2419. [PMID: 31100781 PMCID: PMC6567096 DOI: 10.3390/ijms20102419] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/10/2019] [Accepted: 05/14/2019] [Indexed: 12/17/2022] Open
Abstract
Curcumin is a natural polyphenol component of Curcuma longa Linn, which is currently considered one of the most effective nutritional antioxidants for counteracting free radical-related diseases. Several experimental data have highlighted the pleiotropic neuroprotective effects of curcumin, due to its activity in multiple antioxidant and anti-inflammatory pathways involved in neurodegeneration. Although its poor systemic bioavailability after oral administration and low plasma concentrations represent restrictive factors for curcumin therapeutic efficacy, innovative delivery formulations have been developed in order to overwhelm these limitations. This review provides a summary of the main findings involving the heme oxygenase/biliverdin reductase system as a valid target in mediating the potential neuroprotective properties of curcumin. Furthermore, pharmacokinetic properties and concerns about curcumin's safety profile have been addressed.
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Affiliation(s)
- Emanuela Mhillaj
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy.
- Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
| | - Andrea Tarozzi
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 47900 Rimini, Italy.
| | - Letizia Pruccoli
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 47900 Rimini, Italy.
| | - Vincenzo Cuomo
- Department of Physiology and Pharmacology "V. Erspamer", Sapienza University of Rome, 00185 Rome, Italy.
| | - Luigia Trabace
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy.
| | - Cesare Mancuso
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy.
- Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
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11
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Huang CH, Chang LC, Hu S, Hsiao CY, Wu SJ. Spilanthol inhibits TNF‑α‑induced ICAM‑1 expression and pro‑inflammatory responses by inducing heme oxygenase‑1 expression and suppressing pJNK in HaCaT keratinocytes. Mol Med Rep 2018; 18:2987-2994. [PMID: 30015902 DOI: 10.3892/mmr.2018.9245] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 05/31/2018] [Indexed: 11/06/2022] Open
Abstract
Spilanthol has been reported to possess antioxidant, anti‑inflammatory, antimicrobial and antinociceptive properties. At present, the literature has reported the beneficial role of spilanthol on tumor necrosis factor‑α (TNF‑α)‑stimulated HaCaT cells. The present study investigated the effects of spilanthol on the expression of TNF‑α‑induced intercellular adhesion molecule 1 (ICAM‑1) and cyclooxygenase (COX)‑2 in the human keratinocyte cell line HaCaT. Cells were pretreated with various concentrations of spilanthol (10‑150 µM) followed by TNF‑α to induce inflammation. Pretreatment with spilanthol decreased TNF‑α‑induced COX‑2 expression by western blotting and suppressed the expression of pro‑inflammatory mediators, including interleukin (IL)‑6, IL‑8 and monocyte chemotactic protein 1 using ELISA. Spilanthol also decreased the expression of TNF‑α‑induced ICAM‑1 protein and mRNA assay by western blotting and RT‑qPCR, respectively, in addition to the monocyte adhesiveness of HaCaT cells. Furthermore, spilanthol significantly suppressed the phosphorylation of c‑Jun N‑terminal kinase (JNK), while pretreatment with spilanthol enhanced heme oxygenase (HO)‑1 protein expression by western blotting. These results demonstrated that spilanthol may exert its anti‑inflammatory activity by suppressing the TNF‑α‑induced expression of ICAM‑1, COX‑2 and pro‑inflammatory mediators by enhancing that of HO‑1, and inhibiting the activation of the phosphorylated JNK signaling pathway. It is hypothesized that spilanthol may be a natural anti‑inflammatory drug to attenuate skin inflammatory disease.
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Affiliation(s)
- Chun-Hsun Huang
- Department of Cosmetic Science, Research Center for Food and Cosmetic Safety, and Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan R.O.C
| | - Li-Chun Chang
- Department of Nutrition and Health Sciences, Research Center for Food and Cosmetic Safety, and Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan R.O.C
| | - Sindy Hu
- Department of Cosmetic Science, Research Center for Food and Cosmetic Safety, and Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan R.O.C
| | - Chien-Yu Hsiao
- Department of Dermatology, Aesthetic Medical Center, Chang Gung Memorial Hospital, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan R.O.C
| | - Shu-Ju Wu
- Department of Dermatology, Aesthetic Medical Center, Chang Gung Memorial Hospital, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan R.O.C
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12
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Zhong Y, Feng J, Fan Z, Li J. Curcumin increases cholesterol efflux via heme oxygenase‑1‑mediated ABCA1 and SR‑BI expression in macrophages. Mol Med Rep 2018; 17:6138-6143. [PMID: 29436680 DOI: 10.3892/mmr.2018.8577] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 11/06/2017] [Indexed: 11/05/2022] Open
Abstract
Curcumin, which is an extract from a traditional Chinese medicine, has previously been demonstrated to exhibit an anti‑atherosclerotic effect, which is closely associated with an increase in cholesterol efflux. However, it is unclear as to whether the increased effect is mediated by heme oxygenase (HO)‑1. Macrophages were treated with different concentrations of curcumin, HO‑1 inhibitor and small interfering (si)RNA in different experiments. Analysis of protein expression was conducted via western blotting. mRNA expression levels were measured using reverse transcription‑polymerase chain reaction. Antioxidant response element (ARE)‑driven promoter activity was measured by a dual‑luciferase reporter assay. The cholesterol efflux analysis was performed by fluorescence‑labelled cholesterol (NBD) using a multi‑label counter. In the present study, the results indicated that curcumin increased the cholesterol efflux from macrophages. Additionally, curcumin significantly upregulated HO‑1 expression. The HO‑1 inhibitor (zinc protoporphyrin) partly blocked this effect. Curcumin also promoted scavenger receptor class B type I (SR‑BI) and ATP‑binding cassette transporter A1 (ABCA1) expression. HO‑1 small interfering (si)RNA partly abolished the increased SR‑BI and ABCA1 expression induced by curcumin. Furthermore, the nuclear factor, erythroid 2 like 2 (Nrf2) expression in the nucleus was dose‑dependently increased by curcumin. Nrf2 siRNA successfully inhibited the curcumin‑induced HO‑1 expression. Curcumin significantly increased Nrf2‑driven luciferase activity. Overall, these data indicated that curcumin activates the Nrf2‑ARE signaling pathway and upregulates HO‑1 expression, which mediates SR‑BI and ABCA1 expression and thereby increases cholesterol efflux.
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Affiliation(s)
- Yi Zhong
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Jian Feng
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Zhongcai Fan
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Jiafu Li
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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13
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Keihanian F, Saeidinia A, Bagheri RK, Johnston TP, Sahebkar A. Curcumin, hemostasis, thrombosis, and coagulation. J Cell Physiol 2017; 233:4497-4511. [PMID: 29052850 DOI: 10.1002/jcp.26249] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 10/11/2017] [Accepted: 10/18/2017] [Indexed: 12/15/2022]
Abstract
Atherothrombotic cardiovascular disease is a major cause of mortality throughout the world. Platelet activation and aggregation play a central role in hemostasis and thrombosis. Herbal medicines have been traditionally used in the management of cardiovascular disease and can help in modifying its progression, particularly in hemostasis and the coagulation process, as well as altering platelet function tests and some coagulation parameters. Curcumin is a polyphenol derived from the Curcuma longa plant and has been used extensively in complementary and alternative medicine, as it is nontoxic and safe with various therapeutic properties. Modern scientific research has demonstrated its anti-inflammatory, antioxidant, anti-carcinogenic, antithrombotic, and cardiovascular protective effects. The present study reviewed previous studies in the literature, which support the positive activity of curcumin in hemostasis, anticoagulation, and fibrinolysis. We also presented molecular mechanisms associated with the antiplatelet and anticoagulant activities of curcumin and potential implications for the treatment of cardiovascular disease.
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Affiliation(s)
- Faeze Keihanian
- Pharmaceutical Research Division, Booali Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Cardiology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amin Saeidinia
- Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ramin Khameneh Bagheri
- Cardiology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Thomas P Johnston
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, Missouri
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran
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14
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Zhang J, Yang X, Wang H, Zhao B, Wu X, Su L, Xie S, Wang Y, Li J, Liu J, Liu M, Han F, He T, Zhang W, Tao K, Hu D. PKCζ as a promising therapeutic target for TNFα-induced inflammatory disorders in chronic cutaneous wounds. Int J Mol Med 2017; 40:1335-1346. [PMID: 28949382 PMCID: PMC5627866 DOI: 10.3892/ijmm.2017.3144] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 08/21/2017] [Indexed: 02/06/2023] Open
Abstract
Protein kinase Cζ (PKCζ) is a member of the atypical protein kinase C family. Its roles in macrophages or skin-resident keratinocytes have not been fully evaluated. In this study, we provide evidence that PKCζ mediates lipopolysaccharide (LPS)-induced tumor necrosis factor α (TNFα) gene expression in the mouse macrophage cell line, RAW264.7. TNFα has been proven to be one of the main culprits of chronic wounds and impaired acute wounds, which are characterized by excessive inflammation, enhanced proteolysis and reduced matrix deposition. Among the multiple effects of TNFα on keratinocytes, the induction of chemokines which are indispensable factors involved in the massive infiltration of various inflammatory cells into skin lesions serves as a crucial mechanism. In the present study, we found that PKCζ inhibitor or its specific siRNA inhibited the TNFα-induced upregulation in the levels of the chemokines, interleukin (IL)-8, monocyte chemotactic protein-1 (MCP-1) and intercellular cell adhesion molecule-1 (ICAM-1) in HaCaT keratinocytes. Moreover, under a disrupted inflammatory environment, activated keratinocytes can synthesize large amounts of matrix metalloproteinases (MMP), which has a negative effect on tissue remodeling. We discovered that TNFα promoted the expression of MMP9 in a PKCζ-dependent manner. Further experiments revealed that nuclear factor-κB (NF-κB) was a key downstream molecule of PKCζ. In addition, as shown in vitro, PKCζ was not involved in the TNFα-induced decrease in HaCaT cell migration and proliferation. In vivo experiments demonstrated that TNFα-induced wound closure impairment and inflammatory disorders were significantly attenuated in the PKCζ inhibitor group. On the whole, our findings suggest that PKCζ is a crucial regulator in LPS- or TNFα-induced inflammatory responses in RAW264.7 cells and HaCaT keratinocytes, and that PKCζ/NF-κB signaling may be a potential target for interventional therapy for TNFα-induced skin inflammatory injury.
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Affiliation(s)
- Jian Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xuekang Yang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Hongtao Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Bin Zhao
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xue Wu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Linlin Su
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Songtao Xie
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yunchuan Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jun Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jiaqi Liu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Mengdong Liu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Fu Han
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Ting He
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Wei Zhang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Ke Tao
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Dahai Hu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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15
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Kim H, Youn GS, An SY, Kwon HY, Choi SY, Park J. 2,3-Dimethoxy-2'-hydroxychalcone ameliorates TNF-α-induced ICAM-1 expression and subsequent monocyte adhesiveness via NF-kappaB inhibition and HO-1 induction in HaCaT cells. BMB Rep 2016; 49:57-62. [PMID: 26277982 PMCID: PMC4914214 DOI: 10.5483/bmbrep.2016.49.1.141] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Indexed: 01/20/2023] Open
Abstract
Up-regulation of adhesion molecules plays an important role in the infiltration of leukocytes into the skin during the development of various inflammatory skin diseases, such as atopic dermatitis. In this study, we investigated the modulatory effects of 2,3-dimethoxy-2′-hydroxychalcone (DMHC) on tumor necrosis factor (TNF)-α-induced intercellular adhesion molecule-1 (ICAM-1) expression and monocyte adhesiveness, as well as the molecular mechanisms underlying its action in the HaCaT human keratinocyte cell line. Pre-treating HaCaT cells with DMHC significantly suppressed TNF-α-induced ICAM-1 expression and subsequent monocyte adhesiveness. DMHC inhibited TNF-α-induced activation of NF-ᴋB. In addition, DMHC induced HO-1 expression as well as NRF2 activation. Furthermore, HO-1 knockdown using siRNA reversed the inhibitory effect of DMHC on TNF-α-induced ICAM-1 expression and adhesion of monocytes to keratinocytes. These results suggest that DMHC may inhibit TNF-α-induced ICAM-1 expression and adhesion of monocytes to keratinocytes by suppressing the signaling cascades leading to NF-ᴋB activation and inducing HO-1 expression in keratinocytes. [BMB Reports 2016; 49(1): 57-62]
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Affiliation(s)
- Hyejin Kim
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Soo Yeon An
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Hyeok Yil Kwon
- Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
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16
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Nanoformulation of curcumin protects HUVEC endothelial cells against ionizing radiation and suppresses their adhesion to monocytes: potential in prevention of radiation-induced atherosclerosis. Biotechnol Lett 2016; 38:2081-2088. [DOI: 10.1007/s10529-016-2189-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 08/18/2016] [Indexed: 01/11/2023]
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17
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Seo WY, Youn GS, Choi SY, Park J. Butein, a tetrahydroxychalcone, suppresses pro-inflammatory responses in HaCaT keratinocytes. BMB Rep 2016; 48:495-500. [PMID: 25541056 PMCID: PMC4641232 DOI: 10.5483/bmbrep.2015.48.9.259] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Indexed: 01/29/2023] Open
Abstract
Up-regulation of cell adhesion molecules and proinflammatory cytokines contributes to enhanced monocyte adhesiveness and infiltration into the skin, during the pathogenesis of various inflammatory skin diseases, including atopic dermatitis. In this study, we examined the anti-inflammatory effects of butein, a tetrahydroxychalcone, and its action mechanisms using TNF-α-stimulated keratinocytes. Butein significantly inhibited TNF-α-induced ICAM-I expression and monocyte adhesion in human keratinocyte cell line HaCaT. Butein also decreased TNF-α-induced pro-inflammatory mediators, such as IL-6, IP-10 and MCP-1, in HaCaT cells. Butein decreased TNF-α-induced ROS generation in a dose-dependent manner in HaCaT cells. In addition, treatment of HaCaT cells with butein suppressed TNF-α-induced MAPK activation. Furthermore, butein suppressed TNF-α-induced NF-kappaB activation. Overall, our results indicate that butein has immunomodulatory activities by inhibiting expression of proinflammatory mediators in keratinocytes. Therefore, butein may be used as a therapeutic agent for the treatment of inflammatory skin diseases. [BMB Reports 2015; 48(9): 495-500]
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Affiliation(s)
- Won Yong Seo
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
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18
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Li C, Zhang WJ, Frei B. Quercetin inhibits LPS-induced adhesion molecule expression and oxidant production in human aortic endothelial cells by p38-mediated Nrf2 activation and antioxidant enzyme induction. Redox Biol 2016; 9:104-113. [PMID: 27454768 PMCID: PMC4961307 DOI: 10.1016/j.redox.2016.06.006] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 06/21/2016] [Accepted: 06/25/2016] [Indexed: 01/26/2023] Open
Abstract
Atherosclerosis, the underlying cause of ischemic heart disease and stroke, is an inflammatory disease of arteries in a hyperlipidemic milieu. Endothelial expression of cellular adhesion molecules, such as endothelial-leukocyte adhesion molecule-1 (E-selectin) and intercellular adhesion molecule-1 (ICAM-1), plays a critical role in the initiation and progression of atherosclerosis. The dietary flavonoid, quercetin, has been reported to inhibit expression of cellular adhesion molecules, but the underlying mechanisms are incompletely understood. In this study, we found that quercetin dose-dependently (5–20 µM) inhibits lipopolysaccharide (LPS)-induced mRNA and protein expression of E-selectin and ICAM-1 in human aortic endothelial cells (HAEC). Incubation of HAEC with quercetin also significantly reduced LPS-induced oxidant production, but did not inhibit activation of the nuclear factor-kappaB (NF-κB). Furthermore, quercetin induced activation of the nuclear factor erythroid 2-related factor 2 (Nrf2) and subsequent mRNA and protein expression of the antioxidant enzymes, heme oxygenase-1 (HO-1), NAD(P)H dehydrogenase, quinone 1, and glutamate-cysteine ligase. The induction of Nrf2 and antioxidant enzymes was partly inhibited by the p38 mitogen-activated protein kinase (p38) inhibitor, SB203580. Our results suggest that quercetin suppresses LPS-induced oxidant production and adhesion molecule expression by inducing Nrf2 activation and antioxidant enzyme expression, which is partially mediated by p38; and the inhibitory effect of quercetin on adhesion molecule expression is not due to inhibition of NF-κB activation, but instead due to antioxidant-independent effects of HO-1. Quercetin inhibits LPS-induced oxidant production and adhesion molecule expression. Quercetin activates p38 MAP kinase and Nrf2, upregulating heme oxygenase-1 (HO-1). HO-1 rather than NF-κB may account for quercetin’s anti-inflammatory effects.
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Affiliation(s)
- Chuan Li
- Linus Pauling Institute and Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR 97331, USA
| | - Wei-Jian Zhang
- Linus Pauling Institute and Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR 97331, USA
| | - Balz Frei
- Linus Pauling Institute and Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR 97331, USA.
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19
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Goh AR, Youn GS, Yoo KY, Won MH, Han SZ, Lim SS, Lee KW, Choi SY, Park J. Aronia melanocarpa Concentrate Ameliorates Pro-Inflammatory Responses in HaCaT Keratinocytes and 12-O-Tetradecanoylphorbol-13-Acetate-Induced Ear Edema in Mice. J Med Food 2016; 19:654-62. [PMID: 27331630 DOI: 10.1089/jmf.2015.3624] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abnormal expression of pro-inflammatory mediators such as cell adhesion molecules and cytokines has been implicated in various inflammatory skin diseases, including atopic dermatitis. In this study, we investigated the anti-inflammatory activity of Aronia melanocarpa concentrate (AC) and its action mechanisms using in vivo and in vitro skin inflammation models. Topical application of AC on mouse ears significantly suppressed 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced ear edema formation, as judged by measuring ear thickness and weight, and histological analysis. Topical administration of AC also reduced the expression of pro-inflammatory cytokines such as TNF-α, IL-1β, and IL-6 in TPA-stimulated mouse ears. Pretreatment with AC suppressed TNF-α-induced ICAM-I expression and subsequent monocyte adhesiveness in human keratinocyte cell line HaCaT. In addition, AC significantly decreased intracellular reactive oxygen species (ROS) generation as well as mitogen-activated protein kinase (MAPK) activation in TNF-α-stimulated HaCaT cells. AC and its constituent cyanidin 3-glucoside also attenuated TNF-α-induced IKK activation, IκB degradation, p65 phosphorylation/nuclear translocation, and p65 DNA binding activity in HaCaT cells. Overall, our results indicate that AC exerts anti-inflammatory activities by inhibiting expression of pro-inflammatory mediators in vitro and in vivo possibly through suppression of ROS-MAPK-NF-κB signaling pathways. Therefore, AC may be developed as a therapeutic agent to treat various inflammatory skin diseases.
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Affiliation(s)
| | - Gi Soo Youn
- 1 Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University , Chuncheon, Korea
| | - Ki-Yeon Yoo
- 2 Department of Oral Anatomy, College of Dentistry, Gangneung-Wonju National University , Gangneung, Korea
| | - Moo Ho Won
- 3 Department of Neurobiology, School of Medicine, Kangwon National University , Chuncheon, Korea
| | - Sang-Zin Han
- 4 Department of Life Science, Hallym University , Chuncheon, Korea
| | - Soon Sung Lim
- 5 Department of Food Science and Nutrition, Hallym University , Chuncheon, Korea
| | - Keun Wook Lee
- 1 Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University , Chuncheon, Korea
| | - Soo Young Choi
- 1 Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University , Chuncheon, Korea
| | - Jinseu Park
- 1 Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University , Chuncheon, Korea
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20
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Effects of Eicosapentaenoic Acid on the Cytoprotection Through Nrf2-Mediated Heme Oxygenase-1 in Human Endothelial Cells. J Cardiovasc Pharmacol 2016; 66:108-17. [PMID: 25815672 DOI: 10.1097/fjc.0000000000000251] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Consumption of omega-3 polyunsaturated fatty acid, particularly eicosapentaenoic acid (EPA), is associated with a significant reduction in the risk of developing cardiovascular disease. The aim of this study was to investigate whether heme oxygenase-1 (HO-1) induction contributes to the cytoprotective effects of EPA in endothelial cells threatened with oxidative damage. In this study, we investigated the effect of EPA on the induction of HO-1 by NF-E2-related factor 2 (Nrf2) in human umbilical vein endothelial cells. In cells treated with low concentrations of EPA (10-25 μM), HO-1 expression increased in a time- and concentration-dependent manner. Additionally, EPA treatment increased Nrf2 nuclear translocation and antioxidant response element activity, leading to the upregulation of HO-1 expression. Furthermore, treatment with EPA reduced hydrogen peroxide (H(2)O(2))-induced cell death. The reduction in cell death was reversed by treatment with zinc protoporphyrin, an inhibitor of HO-1, indicating that HO-1 contributed to the protective effect of EPA. These data suggest that EPA protects against H(2)O(2)-induced oxidative stress in endothelial cells by activating Nrf2 and inducting HO-1 expression.
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21
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Sibi G, Rabina S. Inhibition of Pro-inflammatory Mediators and Cytokines by Chlorella Vulgaris Extracts. Pharmacognosy Res 2016; 8:118-22. [PMID: 27034602 PMCID: PMC4780137 DOI: 10.4103/0974-8490.172660] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Objective: The aim of this study was to determine the in vitro anti-inflammatory activities of solvent fractions from Chlorella vulgaris by inhibiting the production of pro-inflammatory mediators and cytokines. Methods: Methanolic extracts (80%) of C. vulgaris were prepared and partitioned with solvents of increasing polarity viz., n-hexane, chloroform, ethanol, and water. Various concentrations of the fractions were tested for cytotoxicity in RAW 264.7 cells using 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, and the concentrations inducing cell growth inhibition by about 50% (IC50) were chosen for further studies. Lipopolysaccharide (LPS) stimulated RAW 264.7 cells were treated with varying concentrations of C. vulgaris fractions and examined for its effects on nitric oxide (NO) production by Griess assay. The release of prostaglandin E2 (PGE2), tumor necrosis factor-α (TNF-α), and interleukin 6 (IL-6) were quantified using enzyme-linked immunosorbent assay using Celecoxib and polymyxin B as positive controls. Results: MTT assay revealed all the solvent fractions that inhibited cell growth in a dose-dependent manner. Of all the extracts, 80% methanolic extract exhibited the strongest anti-inflammatory activity by inhibiting NO production (P < 0.01), PGE2 (P < 0.05), TNF-α, and IL-6 (P < 0.001) release in LPS induced RAW 264.7 cells. Both hexane and chloroform fractions recorded a significant (P < 0.05) and dose-dependent inhibition of LPS induced inflammatory mediators and cytokines in vitro. The anti-inflammatory effect of ethanol and aqueous extracts was not significant in the study. Conclusion: The significant inhibition of inflammatory mediators and cytokines by fractions from C. vulgaris suggests that this microalga would be a potential source of developing anti-inflammatory agents and a good alternate for conventional steroidal and nonsteroidal anti-inflammatory drugs. SUMMARY C. vulgaris extracts have potential anti-inflammatory activity Solvent extraction using methanol, hexane, and chloroform has exhibited significant effect in LPS activated RAW 264.7 cells C. vulgaris extracts reduce the production of NO, PGE2, TNF-α, and IL-6 in LPS activated RAW 264.7 cells.
Abbreviations Used: COX-2: Cyclooxygenase-2, DMSO: Dimethyl sulfoxide, FBS: Fetal bovine serum, IL-6: Interleukin 6, iNOS: Inducible nitric oxide synthase, L-NMMA: NG-methyl-L-arginine acetate salt, LPS: Lipopolysaccharide, MTT: 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide, NO: Nitric oxide, PBS: Phosphate buffered saline, PGE2: Prostaglandin E2, TNF-α: Tumor necrosis factor-α
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Affiliation(s)
- G Sibi
- Department of Biotechnology, Indian Academy Degree College, Centre for Research and Post Graduate Studies, Bengaluru, Karnataka, India
| | - Santa Rabina
- Department of Genetics, Indian Academy Degree College, Centre for Research and Post Graduate Studies, Bengaluru, Karnataka, India
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Huang WC, Wu SJ, Tu RS, Lai YR, Liou CJ. Phloretin inhibits interleukin-1β-induced COX-2 and ICAM-1 expression through inhibition of MAPK, Akt, and NF-κB signaling in human lung epithelial cells. Food Funct 2016; 6:1960-7. [PMID: 25996641 DOI: 10.1039/c5fo00149h] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Phloretin, a flavonoid isolated from the apple tree, is reported to have anti-inflammatory, anti-oxidant, and anti-adiposity effects. In this study, we evaluated the suppressive effects of phloretin on intercellular adhesion molecule 1 (ICAM-1) and cyclooxygenase (COX)-2 expression in IL-1β-stimulated human lung epithelial A549 cells. The cells were pretreated with various concentrations of phloretin (3-100 μM), followed by induced inflammation by IL-1β. Phloretin inhibited levels of prostaglandin E2, decreased COX-2 expression, and suppressed IL-8, monocyte chemotactic protein 1, and IL-6 production. It also decreased ICAM-1 gene and protein expression and suppressed monocyte adhesion to inflammatory A549 cells. Phloretin also significantly inhibited Akt and mitogen-activated protein kinase (MAPK) phosphorylation and decreased nuclear transcription factor kappa-B (NF-κB) subunit p65 protein translocation into the nucleus. In addition, ICAM-1 and COX-2 expression was suppressed by pretreatment with both MAPK inhibitors and phloretin in inflammatory A549 cells. However, phlorizin, a derivative of phloretin, did not suppress the inflammatory response in IL-1β-stimulated A549 cells. These results suggest that phloretin might have an anti-inflammatory effect by inhibiting proinflammatory cytokine, COX-2, and ICAM-1 expression via blocked NF-κB and MAPK signaling pathways.
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Affiliation(s)
- Wen-Chung Huang
- Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, No. 261, Wenhua 1st Rd., Guishan Dist., Taoyuan City 33303, Taiwan
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23
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Choi KC, Cho SW, Kook SH, Chun SR, Bhattarai G, Poudel SB, Kim MK, Lee KY, Lee JC. Intestinal anti-inflammatory activity of the seeds of Raphanus sativus L. in experimental ulcerative colitis models. JOURNAL OF ETHNOPHARMACOLOGY 2016; 179:55-65. [PMID: 26721217 DOI: 10.1016/j.jep.2015.12.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 12/08/2015] [Accepted: 12/21/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Water extract of Raphanus sativus L. (RSL) seeds was traditionally used to treat digestive inflammatory complaints in Korean culture. RSL seeds exerted antioxidant, anti-inflammatory, and anti-septic functions, suggesting their pharmacological potential for the treatment of inflammatory pathologies associated with oxidative stress such as inflammatory bowel disease. AIM OF THIS STUDY We evaluated the intestinal anti-inflammatory effects of RSL seed water extract (RWE) in experimental rat models of trinitrobenzenesulphonic acid (TNBS)- or dextran sodium sulfate (DSS)-induced colitis. MATERIALS AND METHODS RWE was characterized by determining the content of sinapic acid as a reference material and then assayed in the DSS and TNBS models of rat colitis. Male Sprague-Dawley rats were divided into 10 groups (n=7/group): non-colitic control, DSS or TNBS control, DSS colitis groups treated with RWE (100mg/kg) or mesalazine (25mg/kg), and TNBS colitis groups treated with various doses (10, 40, 70, and 100mg/kg) of RWE or mesalazine (25mg/kg). RWE or mesalazine treatment started the same day of colitis induction and rats were sacrificed 24h after the last treatment followed by histological and biochemical analyses. RESULTS Oral administration with RWE suppressed intestinal inflammatory damages in both DSS- and TNBS-induced colitic rats. The treatment with 100mg/kg RWE recovered intestinal damages caused by TNBS or DSS to levels similar to that of mesalazine, decreasing the activity of myeloperoxidase activity and the secretion of tumor necrosis factor (TNF)-α and interleukin (IL)-1β. RWE treatment inhibited malondialdehyde production and glutathione reduction in colon of colitis rats. The administration of RWE at dose of 100mg/kg also suppressed the TNBS- or DSS-stimulated expression of TNF-α, IL-1β, monocyte chemotactic protein-1, inducible nitric oxide, and intercellular adhesion molecule-1. Furthermore, RWE inhibited p38 kinase and DNA-nuclear factor-κB binding activities, both of which were stimulated in the colitic rats. CONCLUSIONS The current findings show that RWE ameliorates intestinal oxidative and inflammatory damages in DSS and TNBS models of rat colitis, suggesting its beneficial use for the treatment of intestinal inflammatory disorders.
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Affiliation(s)
- Ki-Choon Choi
- Grassland and Forage Division, National Institute of Animal Science, RDA, Cheonan, Chungnam 330-801, South Korea.
| | - Seong-Wan Cho
- Department of Pharmaceutical Engineering, Konyang University, Nonsan 320-711, South Korea.
| | - Sung-Ho Kook
- Research Center of Bioactive Materials and Institute for Molecular Biology and Genetics, Chonbuk National University, Jeonju 561-756, South Korea; Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju 561-756, South Korea.
| | - Sa-Ra Chun
- Research Center of Bioactive Materials and Institute for Molecular Biology and Genetics, Chonbuk National University, Jeonju 561-756, South Korea.
| | - Govinda Bhattarai
- Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju 561-756, South Korea.
| | - Sher Bahadur Poudel
- Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju 561-756, South Korea.
| | - Min-Kook Kim
- Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju 561-756, South Korea.
| | - Kyung-Yeol Lee
- Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju 561-756, South Korea.
| | - Jeong-Chae Lee
- Research Center of Bioactive Materials and Institute for Molecular Biology and Genetics, Chonbuk National University, Jeonju 561-756, South Korea; Institute of Oral Biosciences and School of Dentistry, Chonbuk National University, Jeonju 561-756, South Korea.
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Red bean extracts protect rats against intestinal inflammatory damage. Food Sci Biotechnol 2016; 25:349-353. [DOI: 10.1007/s10068-016-0049-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 09/28/2015] [Accepted: 10/06/2015] [Indexed: 11/27/2022] Open
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Liu L, Shang Y, Li M, Han X, Wang J, Wang J. Curcumin ameliorates asthmatic airway inflammation by activating nuclear factor-E2-related factor 2/haem oxygenase (HO)-1 signalling pathway. Clin Exp Pharmacol Physiol 2016; 42:520-9. [PMID: 25739561 DOI: 10.1111/1440-1681.12384] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 02/26/2015] [Accepted: 02/26/2015] [Indexed: 12/27/2022]
Abstract
Previous studies have shown that curcumin alleviates asthma in vivo. However, the relationship between curcumin and the nuclear factor-E2-related factor 2 (Nrf2)/haem oxygenase (HO)-1 pathway in asthma treatment remains unknown. The aim of the present study was to investigate the mechanisms of curcumin involved in the amelioration of airway inflammation in a mouse asthma model. Curcumin was administrated to asthmatic mice, and bronchoalveolar lavage fluid was collected. Inflammatory cell infiltration was measured by Giemsa staining. Immunoglobulin E production in bronchoalveolar lavage fluid was measured by enzyme-linked immunosorbent assay. Histological analyses were evaluated with haematoxylin-eosin and periodic acid-Schiff staining. Airway hyperresponsiveness was examined by whole-body plethysmography. Nuclear factor-E2-related factor 2, HO-1, nuclear factor-κB and inhibitory κB/p-inhibitory κB levels in lung tissues were detected by western blot, and Nrf2 activity was measured by electrophoretic mobility shift assay. Tumour necrosis factor-α, interleukin (IL)-1β, and IL-6 levels in the small interfering RNA-transfected cells were detected by enzyme-linked immunosorbent assay. Curcumin treatment significantly reduced immunoglobulin E production, attenuated inflammatory cell accumulation and goblet cell hyperplasia, and ameliorated mucus secretion and airway hyperresponsiveness. Nuclear factor-E2-related factor 2 and HO-1 levels in lung tissues were significantly increased. Meanwhile, Nrf2 activity was enhanced. Nuclear factor-κB and p-inhibitory κB levels were elevated in the lung tissue of ovalbumin-challenged mice. Both were restored to normal levels after curcumin treatment. Haem oxygenase-1 and nuclear Nrf2 levels were enhanced in dose- and time-dependent manners in curcumin-treated RAW264.7 cells. Curcumin blocked lipopolysaccharide-upregulated expression of tumour necrosis factor-α, IL-1β, and IL-6. After the cells were transfected with HO-1 or Nrf2 small interfering RNA, lipopolysaccharide-induced pro-inflammation cytokine expression was significantly restored. In summary, curcumin might alleviate airway inflammation in asthma through the Nrf2/HO-1 pathway, potentially making it an effective drug in asthma treatment.
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Affiliation(s)
- Liyun Liu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
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de Oliveira MR. Phloretin-induced cytoprotective effects on mammalian cells: A mechanistic view and future directions. Biofactors 2016; 42:13-40. [PMID: 26826024 DOI: 10.1002/biof.1256] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 11/19/2015] [Indexed: 11/11/2022]
Abstract
Phloretin (C15 H14 O5 ), a dihydrochalcone flavonoid, is mainly found in fruit, leaves, and roots of apple tree. Phloretin exerts antioxidant, anti-inflammatory, and anti-tumor activities in mammalian cells through mechanisms that have been partially elucidated throughout the years. Phloretin bioavailability is well known in humans, but still remains to be better studied in experimental animals, such as mouse and rat. The focus of the present review is to gather information regarding the mechanisms involved in the phloretin-elicited effects in different in vitro and in vivo experimental models. Several manuscripts were analyzed and data raised by authors were described and discussed here in a mechanistic manner. Comparisons between the effects elicited by phloretin and phloridzin were made whenever possible, as well as with other polyphenols, clarifying questions about the use of phloretin as a potential therapeutic agent. Toxicological aspects associated to phloretin exposure were also discussed here. Furthermore, a special section containing future directions was created as a suggestive guide towards the elucidation of phloretin-related actions in mammalian cells and tissues.
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Affiliation(s)
- Marcos Roberto de Oliveira
- Department of Chemistry/ICET, Postgraduate Program in Chemistry (PPGQ), Federal University of Mato Grosso (UFMT), CEP, Cuiaba, MT, Brazil
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Ju SM, Youn GS, Cho YS, Choi SY, Park J. Celastrol ameliorates cytokine toxicity and pro-inflammatory immune responses by suppressing NF-κB activation in RINm5F beta cells. BMB Rep 2015; 48:172-7. [PMID: 25059279 PMCID: PMC4453024 DOI: 10.5483/bmbrep.2015.48.3.147] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Indexed: 01/09/2023] Open
Abstract
Upregulation of pro-inflammatory mediators contributes to β-cell destruction and enhanced infiltration of immune cells into pancreatic islets during development of type 1 diabetes mellitus. In this study, we examined the regulatory effects and the mechanisms of action of celastrol against cytotoxicity and pro-inflammatory immune responses in the RINm5F rat pancreatic β-cell line stimulated with a combination of interleukin-1 beta, tumor necrosis factor-alpha, and interferon-γ. Celastrol significantly restored cytokine-induced cell death and significantly inhibited cytokine-induced nitric oxide production. In addition, the protective effect of celastrol was correlated with a reduction in pro-inflammatory mediators, such as inducible nitric oxide synthase, cyclooxygenase-2, and CC chemokine ligand 2. Furthermore, celastrol significantly suppressed cytokine-induced signaling cascades leading to nuclear factor kappa B (NF-κB) activation, including IκB-kinase (IKK) activation, IκB degradation, p65 phosphorylation, and p65 DNA binding activity. These results suggest that celastrol may exert its cytoprotective activity by suppressing cytokine-induced expression of pro-inflammatory mediators by inhibiting activation of NF-κB in RINm5F cells. [BMB Reports 2015; 48(3): 172-177]
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Affiliation(s)
- Sung Mi Ju
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 200-702, Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 200-702, Korea
| | - Yoon Shin Cho
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 200-702, Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 200-702, Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 200-702, Korea
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Catechin-7-O- β -D-glucopyranoside isolated from the seed of Phaseolus calcaratus Roxburgh ameliorates experimental colitis in rats. Int Immunopharmacol 2015; 29:521-527. [DOI: 10.1016/j.intimp.2015.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 10/01/2015] [Accepted: 10/01/2015] [Indexed: 02/06/2023]
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Phloretin ameliorates chemokines and ICAM-1 expression via blocking of the NF-κB pathway in the TNF-α-induced HaCaT human keratinocytes. Int Immunopharmacol 2015; 27:32-7. [PMID: 25929446 DOI: 10.1016/j.intimp.2015.04.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 04/11/2015] [Accepted: 04/13/2015] [Indexed: 11/20/2022]
Abstract
Previous studies found that phloretin had anti-oxidant, anti-inflammatory, and anti-tumor properties. In this study, we investigated whether phloretin could suppress the production of the intercellular adhesion molecule (ICAM)-1 and chemokines through downregulation of the nuclear transcription factor kappa-B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways in TNF-α-stimulated HaCaT human keratinocytes. HaCaT cells were treated with phloretin and then the cells were stimulated by TNF-α. Phloretin treatment decreased the production of IL-6, IL-8, CCL5, MDC, and TARC. Phloretin decreased ICAM-1 protein and mRNA expression, and also suppressed the adhesion of monocyte THP-1 cells to inflammatory HaCaT cells. Phloretin inhibited NF-κB translocation into the nucleus and also suppressed the phosphorylation of Akt and MAPK signal. In addition, phloretin increased heme oxygenase-1 production in a concentration-dependent manner. These results demonstrated that phloretin has anti-inflammatory effects to inhibit chemokines and ICAM-1 expressions through suppression of the NF-κB and MAPK pathways in human keratinocytes.
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Kwon DJ, Bae YS, Ju SM, Youn GS, Choi SY, Park J. Salicortin suppresses lipopolysaccharide-stimulated inflammatory responses via blockade of NF-κB and JNK activation in RAW 264.7 macrophages. BMB Rep 2015; 47:318-23. [PMID: 24286322 PMCID: PMC4163874 DOI: 10.5483/bmbrep.2014.47.6.200] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Indexed: 01/19/2023] Open
Abstract
We isolated the phenolic glucoside salicortin from a Populus euramericana bark extract, and examined its ability to suppress inflammatory responses as well as the molecular mechanisms underlying these abilities, using lipopolysaccharide (LPS)-stimulated RAW264.7 cells. Salicortin inhibited iNOS expression and the subsequent production of NO in a dose-dependent manner in the LPS-stimulated RAW 264.7 cells. Salicortin significantly suppressed LPS-induced signal cascades of NF-κB activation, such as IKK activation, IκBα phosphorylation and p65 phosphorylation in RAW 264.7 cells. In addition, salicortin inhibited the LPS-induced activation of JNK, but not ERK or p38 MAPK. Furthermore, salicortin significantly inhibited production of pro-inflammatory cytokines, such as TNF-α, IL-1β and IL-6 in the LPS-stimulated RAW 264.7 cells. These findings suggest that salicortin may show its anti-inflammatory activity by suppressing the LPS-induced expression of pro-inflammatory mediators through inhibition of NF-κB and JNK MAPK signaling cascades in macrophages.
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Affiliation(s)
- Dong-Joo Kwon
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 200-702; Hongcheon Institute of Medicinal Herb, Hongcheon 200-930, Korea
| | - Young-Soo Bae
- Department of Forest Biomaterials Engineering, Kangwon National University, Chuncheon 200-701, Korea
| | - Sung Mi Ju
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 200-702, Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 200-702, Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 200-702, Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 200-702, Korea
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Najafi H, Changizi Ashtiyani S, Sayedzadeh SA, Mohamadi yarijani Z, Fakhri S. Therapeutic effects of curcumin on the functional disturbances and oxidative stress induced by renal ischemia/reperfusion in rats. AVICENNA JOURNAL OF PHYTOMEDICINE 2015; 5:576-86. [PMID: 26693415 PMCID: PMC4678503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Curcumin has anti-inflammatory and antioxidative properties. The objective of this study was to investigate the therapeutic effects of curcumin on functional disturbances, oxidative stress, and leukocyte infiltration induced by renal ischemia/reperfusion (I/R). MATERIALS AND METHODS Animals were randomly divided into 9 groups. The groups with 24-h reperfusion consisted of sham-24h, I/R-24h, and three I/R groups treated with curcumin at 10, 20, or 30 mg kg(-1), i.p. after the ischemic period. The 72-h reperfusion groups also included Sham-72h, I/R-72h, I/R treated with curcumin at single dose of 20 mg kg(-1), i.p., and I/R group which received three doses of curcumin at 20 mg kg(-1), i.p., consecutively. Renal functional injury was assessed by measuring serum creatinine and urea-nitrogen concentrations. Oxidative stress was evaluated by assessment tissue malondialdehyde (MDA) and the ferric reducing/antioxidant power (FRAP) levels. Moreover, renal tissue leukocyte infiltration was measured by histopathology examination. RESULTS Ischemia/reperfusion resulted in a significant increase in serum concentration of creatinine, urea-nitrogen, tissue MDA level, and leukocytes infiltration as well as reduced FRAP level. Treatment with curcumin in 24-h reperfusion groups could only lead to a significant change in the levels of MDA and FRAP. However, in 72-h reperfusion groups, curcumin was able to correct all functional disturbances, oxidative stress, and leukocytes infiltration with more effectiveness in groups that received three doses of curcumin. CONCLUSION The administration of curcumin during 72-h reperfusion following 30 minutes of ischemia can decrease renal oxidative stress and leukocytes infiltration as well as improve kidney function. However, during first 24-h reperfusion, curcumin only decreased oxidative stress.
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Affiliation(s)
- Houshang Najafi
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran ,Corresponding Author: Tel: +98 8334274622, Fax: +98 8334274623, houshang.najafi @gmail.com
| | | | - Sayed Abolhasan Sayedzadeh
- Department of Nephrology, Emam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | - Sajad Fakhri
- School of pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Liou CJ, Len WB, Wu SJ, Lin CF, Wu XL, Huang WC. Casticin inhibits COX-2 and iNOS expression via suppression of NF-κB and MAPK signaling in lipopolysaccharide-stimulated mouse macrophages. JOURNAL OF ETHNOPHARMACOLOGY 2014; 158 Pt A:310-316. [PMID: 25446583 DOI: 10.1016/j.jep.2014.10.046] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 09/01/2014] [Accepted: 10/22/2014] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The fruits of Vitex rotundifolia L. are widely used to treat inflammation of the airway in Traditional Chinese medicine. Previous studies found that casticin, isolated from Vitex rotundifolia, could induce apoptosis of tumor cells. In this study, we evaluated the anti-inflammatory effects of casticin and its underlying molecular mechanism in lipopolysaccharide (LPS)-stimulated macrophages. MATERIALS AND METHODS RAW264.7 cells were pretreated with various concentrations of casticin (0.3-10μM), and then treated with LPS to induce inflammation. We assayed the levels of proinflammatory cytokines and prostaglandin E2 (PGE2) using ELISA, and examined the protein expression of inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2, and heme oxygenase (HO)-1 by Western blot. We also investigated the anti-inflammatory molecular mechanism by analyzing inflammatory-associated signaling pathways, including the nuclear transcription factor kappa-B (NF-κB) and mitogen-activated protein kinase (MAPK) pathways. RESULTS We found casticin inhibited the levels of nitric oxide and PGE2, and decreased the production of proinflammatory cytokines such as interleukin (IL)-1β, IL-6, and tumor necrosis factor α (TNF-α). In addition, iNOS and COX-2 expression levels were suppressed and casticin increased HO-1 and Nrf2 production in a concentration-dependent manner. Furthermore, casticin significantly inhibited NF-κB subunit p65 proteins in the nucleus and decreased Akt and MAPK activation. CONCLUSION These results suggest that the anti-inflammatory effect of casticin is due to inhibition of proinflammatory cytokines and mediators by blocking the NF-κB, Akt, and MAPK signaling pathways.
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Affiliation(s)
- Chian-Jiun Liou
- Department of Nursing, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC
| | - Wen-Bin Len
- Department of Nursing, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC
| | - Shu-Ju Wu
- Department of Nutrition and Health Sciences, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC
| | - Chwan-Fwu Lin
- Department of Cosmetic Sciences, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC
| | - Xin-Ling Wu
- Department of Nutrition and Health Sciences, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC
| | - Wen-Chung Huang
- Department of Nutrition and Health Sciences, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC; Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC; Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC.
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Son GW, Kim GD, Yang H, Park HR, Park YS. Alteration of gene expression profile by melatonin in endothelial cells. BIOCHIP JOURNAL 2014. [DOI: 10.1007/s13206-014-8204-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Microarray analysis of gene expression in 3-methylcholanthrene-treated human endothelial cells. Mol Cell Toxicol 2014. [DOI: 10.1007/s13273-014-0003-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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