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Yang JL, Lin WL, Tai SB, Ciou YS, Chung CL, Chen JJ, Liu PF, Lin MW, Chen CL. Suppression of TGFβ-Induced Interleukin-6 Secretion by Sinulariolide from Soft Corals through Attenuation of the p38-NF-kB Pathway in Carcinoma Cells. Int J Mol Sci 2023; 24:11656. [PMID: 37511415 PMCID: PMC10380600 DOI: 10.3390/ijms241411656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/13/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Sinulariolide (SC-1) is a natural product extracted from the cultured-type soft coral Sinularia flexibilis and possesses anti-inflammation, anti-proliferative, and anti-migratory in several types of cancer cells. However, the molecular pathway behind its effects on inflammation remains poorly understood. Since inflammatory cytokines such as TGFβ, TNFα, IL-1, IL-6, and IL-8 activate transcription factors such as Smads, NF-κB, STAT3, Snail, Twist, and Zeb that drive the epithelial-to-mesenchymal transition (EMT), in this study, we focus on the investigation in effects of SC-1 on TGFβ-induced interleukin-6 (IL-6) releases in an in vitro cell culture model. We showed that both intracellular IL-6 expression and secretion were stimulated by TGFβ and associated with strong upregulation of IL-6 mRNA and increased transcription in A549 cells. SC-1 blocked TGFβ-induced secretion of IL-6 while showing no effect on the induction of fibronectin and plasminogen activator inhibitor-1 genes, indicating that SC-1 interferes with only a subset of TGFβ activities. In addition, SC-1 inhibits TGFβ-induced IL-6 by suppressing p38 MAPK signaling and subsequently inhibits NF-κB and its nuclear translocation without affecting the canonical Smad pathway and receptor turnover. Overall, these data suggest that p38 may involve in the inhibition of SC-1 in IL-6 release, thus illustrating an inhibitory effect for SC-1 in the suppression of inflammation, EMT phenotype, and tumorigenesis.
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Affiliation(s)
- Jenq-Lin Yang
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Weng-Ling Lin
- Department of Pathology, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
| | - Shun-Ban Tai
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
- Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung 81342, Taiwan
| | - Yi-Siang Ciou
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Chih-Ling Chung
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
| | - Jih-Jung Chen
- Department of Pharmacy, School of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404332, Taiwan
| | - Pei-Feng Liu
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung 80756, Taiwan
| | - Ming-Wei Lin
- Department of Medical Research, E-Da Hospital/E-Da Cancer Hospital, Kaohsiung 82445, Taiwan
| | - Chun-Lin Chen
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80756, Taiwan
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2
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Chen C, Huang FW, Huang SS, Huang JS. IGFBP-3 and TGF-β inhibit growth in epithelial cells by stimulating type V TGF-β receptor (TβR-V)-mediated tumor suppressor signaling. FASEB Bioadv 2021; 3:709-729. [PMID: 34485840 PMCID: PMC8409558 DOI: 10.1096/fba.2021-00016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/06/2021] [Accepted: 04/23/2021] [Indexed: 12/13/2022] Open
Abstract
The TGF-β type V receptor (TβR-V) mediates growth inhibition by IGFBP-3 and TGF-β in epithelial cells and loss of TβR-V expression in these cells leads to development of carcinoma. The mechanisms by which TβR-V mediates growth inhibition (tumor suppressor) signaling remain elusive. Previous studies revealed that IGFBP-3 and TGF-β inhibit growth in epithelial cells by stimulating TβR-V-mediated IRS-1/2-dependent activation and cytoplasm-to-nucleus translocation of IGFBP-3- or TGF-β-stimulated protein phosphatase (PPase), resulting in dephosphorylation of pRb-related proteins (p107, p130) or pRb, and growth arrest. To define the signaling, we characterized/identified the IGFBP-3- and TGF-β-stimulated PPases in cell lysates and nucleus fractions in Mv1Lu cells treated with IGFBP-3 and TGF-β, using a cell-free assay with 32P-labeled casein as a substrate. Both IGFBP-3- and TGF-β-stimulated PPase activities in cell lysates are abolished when cells are co-treated with TGF-β/IGFBP-3 antagonist or RAP (LRP-1/TβR-V antagonist). However, the IGFBP-3-stimulated PPase activity, but not TGF-β-stimulated PPase activity, is sensitive to inhibition by okadaic acid (OA). In addition, OA or PP2Ac siRNA reverses IGFBP-3 growth inhibition, but not TGF-β growth inhibition, in Mv1Lu and 32D cells. These suggest that IGFBP-3- and TGF-β-stimulated PPases are identical to PP2A and PP1, respectively. By Western blot/phosphorimager/immunofluorescence-microscopy analyses, IGFBP-3 and TGF-β stimulate TβR-V-mediated IRS-2-dependent activation and cytoplasm-to-nucleus translocation of PP2Ac and PP1c, resulting in dephosphorylation of p130/p107 and pRb, respectively, and growth arrest. Small molecule TGF-β enhancers, which potentiate TGF-β growth inhibition by enhancing TβR-I-TβR-II-mediated canonical signaling and thus activating TβR-V-mediated tumor suppressor signaling cascade (TβR-V/IRS-2/PP1/pRb), could be used to prevent and treat carcinoma.
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Affiliation(s)
- Chun‐Lin Chen
- Department of Biological ScienceNational Sun Yat‐sen UniversityKaohsiungTaiwan
- Departments of Biochemistry and Molecular BiologySaint Louis University School of MedicineSt. LouisMOUSA
| | - Franklin W. Huang
- Division of Hematology and OncologyDepartment of MedicineUniversity of CaliforniaSan FranciscoCAUSA
| | | | - Jung San Huang
- Departments of Biochemistry and Molecular BiologySaint Louis University School of MedicineSt. LouisMOUSA
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3
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Huang CY, Chung CL, Hu TH, Chen JJ, Liu PF, Chen CL. Recent progress in TGF-β inhibitors for cancer therapy. Biomed Pharmacother 2020; 134:111046. [PMID: 33341049 DOI: 10.1016/j.biopha.2020.111046] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/16/2020] [Accepted: 11/19/2020] [Indexed: 01/18/2023] Open
Abstract
Transforming growth factor-β (TGF-β) is a multifunctional cytokine that is involved in proliferation, metastasis, and many other important processes in malignancy. Inhibitors targeting TGF-β have been considered by pharmaceutical companies for cancer therapy, and some of them are in clinical trial now. Unfortunately, several of these programs have recently been relinquished, and most companies that remain in the contest are progressing slowly and cautiously. This review summarizes the TGF-β signal transduction pathway, its roles in oncogenesis and fibrotic diseases, and advancements in antibodies and small-molecule inhibitors of TGF-β.
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Affiliation(s)
- Cheng-Yi Huang
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC; Department of Pathology, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan, ROC
| | - Chih-Ling Chung
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC
| | - Tsung-Hui Hu
- Division of Hepato-Gastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan, ROC
| | - Jih-Jung Chen
- Faculty of Pharmacy, School of Pharmaceutical Sciences, National Yang-Ming University, Taipei 11221, Taiwan, ROC; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
| | - Pei-Feng Liu
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan ROC
| | - Chun-Lin Chen
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC; Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan ROC; Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 80708, Taiwan ROC.
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4
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Liu S, Hou H, Zhang P, Wu Y, He X, Li H, Yan N. Sphingomyelin synthase 1 regulates the epithelial‑to‑mesenchymal transition mediated by the TGF‑β/Smad pathway in MDA‑MB‑231 cells. Mol Med Rep 2018; 19:1159-1167. [PMID: 30535436 PMCID: PMC6323219 DOI: 10.3892/mmr.2018.9722] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 11/06/2018] [Indexed: 12/25/2022] Open
Abstract
Breast cancer is the most common cancer in women and a leading cause of cancer‑associated mortalities in the world. Epithelial‑to‑mesenchymal transition (EMT) serves an important role in the process of metastasis and invasive ability in cancer cells, and transforming growth factor β1 (TGF‑β1) have been investigated for promoting EMT. However, in the present study, the role of the sphingomyelin synthase 1 (SMS1) in TGF‑β1‑induced EMT development was investigated. Firstly, bioinformatics analysis demonstrated that the overexpression of SMS1 negatively regulated the TGFβ receptor I (TβRI) level of expression. Subsequently, the expression of SMS1 was decreased, whereas, SMS2 had no significant difference when MDA‑MB‑231 cells were treated by TGF‑β1 for 72 h. Furthermore, the present study constructed an overexpression cells model of SMS1 and these cells were treated by TGF‑β1. These results demonstrated that overexpression of SMS1 inhibited TGF‑β1‑induced EMT and the migration and invasion of MDA‑MB‑231 cells, increasing the expression of E‑cadherin while decreasing the expression of vimentin. Furthermore, the present study further confirmed that SMS1 overexpression could decrease TβRI expression levels and blocked smad family member 2 phosphorylation. Overall, the present results suggested that SMS1 could inhibit EMT and the migration and invasion of MDA‑MB‑231 cells via TGF‑β/Smad signaling pathway.
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Affiliation(s)
- Shuang Liu
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Huan Hou
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Panpan Zhang
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Yifan Wu
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Xuanhong He
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Hua Li
- Department of Biochemistry and Molecular Biology, Centre of Experimental Medicine, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Nianlong Yan
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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5
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Meng F, Xiao Y, Guo L, Zeng H, Yang X, Qiu D. A DREPP protein interacted with PeaT1 from Alternaria tenuissima and is involved in elicitor-induced disease resistance in Nicotiana plants. JOURNAL OF PLANT RESEARCH 2018; 131:827-837. [PMID: 29730747 DOI: 10.1007/s10265-018-1038-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 04/07/2018] [Indexed: 06/08/2023]
Abstract
PeaT1 is a proteinaceous elicitor from fungal pathogen Alternaria tenuissima. Our previous research revealed that this elicitor could induce defense response and enhance disease resistance in various plants including Nicotiana plants. However, immune activation mechanisms whereby PeaT1 elicits defense response remain unclear. In this study, the association between elicitor protein PeaT1 and the plasma membrane was assessed using the FITC (Fluorescein isothiocyanate) labeling method. A PeaT1-interacting protein was isolated via 125I-PeaT1 cross-linking and Far Western blot analyses, and designated PtBP1 (PeaT1 Binding Protein 1). From the data of Mass spectrometry (MS) and bioinformatics analysis, the 22 kDa plasma membrane protein PtBP1 was inferred to be a member of DREPP (developmentally regulated plasma membrane polypeptide) family that is induced in plants under stress conditions and might get involved in downstream signaling. For further verification of this association, Far Western blot, co-immunoprecipitation and bimolecular fluorescence complementation (BiFC) analyses were performed, showing PtBP1 could bind with PeaT1 in vitro and in vivo. Virus-induced gene silencing (VIGS) analysis exhibited that PtBP1 silencing in Nicotiana benthamiana attenuated tobacco mosaic virus (TMV) resistance compared to the tobacco rattle virus (TRV) control after PeaT1 treatment.
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Affiliation(s)
- Fanlu Meng
- The State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, No. 12 Zhongguancun South Street, Beijing, 100081, China
| | - Yao Xiao
- The State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, No. 12 Zhongguancun South Street, Beijing, 100081, China
| | - Lihua Guo
- The State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, No. 12 Zhongguancun South Street, Beijing, 100081, China
| | - Hongmei Zeng
- The State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, No. 12 Zhongguancun South Street, Beijing, 100081, China
| | - Xiufen Yang
- The State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, No. 12 Zhongguancun South Street, Beijing, 100081, China.
| | - Dewen Qiu
- The State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, No. 12 Zhongguancun South Street, Beijing, 100081, China.
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6
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Shih-Wei W, Chih-Ling C, Kao YC, Martin R, Knölker HJ, Shiao MS, Chen CL. Pentabromopseudilin: a myosin V inhibitor suppresses TGF-β activity by recruiting the type II TGF-β receptor to lysosomal degradation. J Enzyme Inhib Med Chem 2018; 33:920-935. [PMID: 29768059 PMCID: PMC6009923 DOI: 10.1080/14756366.2018.1465416] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Pentabromopseudilin (PBrP) is a marine antibiotic isolated from the marine bacteria Pseudomonas bromoutilis and Alteromonas luteoviolaceus. PBrP exhibits antimicrobial, anti-tumour, and phytotoxic activities. In mammalian cells, PBrP is known to act as a reversible and allosteric inhibitor of myosin Va (MyoVa). In this study, we report that PBrP is a potent inhibitor of transforming growth factor-β (TGF-β) activity. PBrP inhibits TGF-β-stimulated Smad2/3 phosphorylation, plasminogen activator inhibitor-1 (PAI-1) protein production and blocks TGF-β-induced epithelial–mesenchymal transition in epithelial cells. PBrP inhibits TGF-β signalling by reducing the cell-surface expression of type II TGF-β receptor (TβRII) and promotes receptor degradation. Gene silencing approaches suggest that MyoVa plays a crucial role in PBrP-induced TβRII turnover and the subsequent reduction of TGF-β signalling. Because, TGF-β signalling is crucial in the regulation of diverse pathophysiological processes such as tissue fibrosis and cancer development, PBrP should be further explored for its therapeutic role in treating fibrotic diseases and cancer.
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Affiliation(s)
- Wang Shih-Wei
- a Department of Biological Sciences , National Sun Yat-sen University , Kaohsiung , Taiwan, ROC
| | - Chung Chih-Ling
- a Department of Biological Sciences , National Sun Yat-sen University , Kaohsiung , Taiwan, ROC
| | - Yu-Chen Kao
- a Department of Biological Sciences , National Sun Yat-sen University , Kaohsiung , Taiwan, ROC
| | - René Martin
- b Department of Chemistry , TU Dresden , Dresden , Germany
| | | | - Meng-Shin Shiao
- c Faculty of Medicine Ramathibodi Hospital , Mahidol University , Bangkok , Thailand
| | - Chun-Lin Chen
- a Department of Biological Sciences , National Sun Yat-sen University , Kaohsiung , Taiwan, ROC.,d Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University and Academia Sinica , Kaohsiung , Taiwan, ROC
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7
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Chung CL, Wang SW, Sun WC, Shu CW, Kao YC, Shiao MS, Chen CL. Sorafenib suppresses TGF-β responses by inducing caveolae/lipid raft-mediated internalization/degradation of cell-surface type II TGF-β receptors: Implications in development of effective adjunctive therapy for hepatocellular carcinoma. Biochem Pharmacol 2018; 154:39-53. [PMID: 29678520 DOI: 10.1016/j.bcp.2018.04.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 04/13/2018] [Indexed: 12/31/2022]
Abstract
Sorafenib is the only FDA approved drug for the treatment of advanced hepatocellular carcinoma (HCC) and other malignancies. Studies indicate that TGF-β signalling is associated with tumour progression in HCC. Autocrine and paracrine TGF-β promotes tumour growth and malignancy by inducing epithelial-mesenchymal transition (EMT). Sorafenib is believed to antagonize tumour progression by inhibiting TGF-β-induced EMT. It improves survival of patients but HCC later develops resistance and relapses. The underlying mechanism of resistance is unknown. Understanding of the molecular mechanism of sorafenib inhibition of TGF-β-induced signalling or responses in HCC may lead to development of adjunctive effective therapy for HCC. In this study, we demonstrate that sorafenib suppresses TGF-β responsiveness in hepatoma cells, hepatocytes, and animal liver, mainly by downregulating cell-surface type II TGF-β receptors (TβRII) localized in caveolae/lipid rafts and non-lipid raft microdomains via caveolae/lipid rafts-mediated internalization and degradation. Furthermore, sorafenib-induced downregulation and degradation of cell-surface TβRII is prevented by simultaneous treatment with a caveolae disruptor or lysosomal inhibitors. On the other hand, sorafenib only downregulates cell-surface TβRII localized in caveolae/lipid rafts but not localized in non-lipid raft microdomains in hepatic stellate cells. These results suggest that sorafenib inhibits TGF-β signalling mainly by inducing caveolae/lipid raft-mediated internalization and degradation of cell-surface TβR-II in target cells. They may also imply that treatment with agents which promote formation of caveolae/lipid rafts, TGF-β receptor kinase inhibitors (e.g., LY2157299) or TGF-β peptide antagonists (by liver-targeting delivery) may be considered as effective adjunct therapy with sorafenib for HCC.
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Affiliation(s)
- Chih-Ling Chung
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC
| | - Shih-Wei Wang
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC
| | - Wei-Chih Sun
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 81326, Taiwan, ROC
| | - Chih-Wen Shu
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung 81326, Taiwan, ROC
| | - Yu-Chen Kao
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC
| | - Meng-Shin Shiao
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
| | - Chun-Lin Chen
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC; Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University and Academia Sinica, Kaohsiung 80424, Taiwan, ROC.
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8
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Chung CL, Wang SW, Martin R, Knölker HJ, Kao YC, Lin MH, Chen JJ, Huang YB, Wu DC, Chen CL. Pentachloropseudilin Inhibits Transforming Growth Factor-β (TGF-β) Activity by Accelerating Cell-Surface Type II TGF-β Receptor Turnover in Target Cells. Chembiochem 2018; 19:851-864. [DOI: 10.1002/cbic.201700693] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Chih-Ling Chung
- Department of Biological Sciences; National Sun Yat-sen University; Kaohsiung 80424 ROC Taiwan
| | - Shih-Wei Wang
- Department of Biological Sciences; National Sun Yat-sen University; Kaohsiung 80424 ROC Taiwan
| | - René Martin
- Department of Chemistry; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany
| | - Hans-Joachim Knölker
- Department of Chemistry; Technische Universität Dresden; Bergstrasse 66 01069 Dresden Germany
| | - Yu-Chen Kao
- Department of Biological Sciences; National Sun Yat-sen University; Kaohsiung 80424 ROC Taiwan
| | - Ming-Hong Lin
- Department of Microbiology and Immunology; Faculty of Medicine; Kaohsiung Medical University Hospital; Kaohsiung 80708 ROC Taiwan
| | - Jih-Jung Chen
- Faculty of Pharmacy; School of Pharmaceutical Sciences; National Yang-Ming University; Taipei 11221 ROC Taiwan
| | - Yaw-Bin Huang
- Department of Biological Sciences; National Sun Yat-sen University; Kaohsiung 80424 ROC Taiwan
- Department of Pharmacy; School of Pharmacy; Kaohsiung Medical University; Kaohsiung 80708 ROC Taiwan
- Center for Stem Cell Research; Kaohsiung Medical University; Kaohsiung 80708 ROC Taiwan
| | - Deng-Chyang Wu
- Division of Gastroenterology; Department of Internal Medicine; Kaohsiung Medical University Hospital; Kaohsiung 80708 ROC Taiwan
- Center for Stem Cell Research; Kaohsiung Medical University; Kaohsiung 80708 ROC Taiwan
| | - Chun-Lin Chen
- Department of Biological Sciences; National Sun Yat-sen University; Kaohsiung 80424 ROC Taiwan
- Doctoral Degree Program in Marine Biotechnology; National Sun Yat-sen University and Academia Sinica; Kaohsiung 80424 ROC Taiwan
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9
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de Abreu Costa L, Henrique Fernandes Ottoni M, Dos Santos MG, Meireles AB, Gomes de Almeida V, de Fátima Pereira W, Alves de Avelar-Freitas B, Eustáquio Alvim Brito-Melo G. Dimethyl Sulfoxide (DMSO) Decreases Cell Proliferation and TNF-α, IFN-γ, and IL-2 Cytokines Production in Cultures of Peripheral Blood Lymphocytes. Molecules 2017; 22:molecules22111789. [PMID: 29125561 PMCID: PMC6150313 DOI: 10.3390/molecules22111789] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/18/2017] [Accepted: 10/18/2017] [Indexed: 02/03/2023] Open
Abstract
Dimethylsulfoxide (DMSO) is an amphipathic molecule composed of a polar domain characterized by the sulfinyl and two nonpolar methyl groups, for this reason it is able to solubilize polar and nonpolar substances and transpose hydrophobic barriers. DMSO is widely used to solubilize drugs of therapeutic applications and studies indicated that 10% v/v concentration did not modify culture viability when used to treat human peripheral blood mononuclear cells (PBMC). However, some DMSO concentrations could influence lymphocyte activation and present anti-inflammatory effects. Therefore, the objective of this study was to evaluate the effect of DMSO on lymphocyte activation parameters. Cell viability analysis, proliferation, and cytokine production were performed on PBMC from six healthy subjects by flow cytometry. The results indicated that 2.5% v/v DMSO concentrations did not modify lymphocytes viability. DMSO at 1% and 2% v/v concentrations reduced the relative proliferation index of lymphocytes and at 5% and 10% v/v concentrations reduced the percentage of total lymphocytes, cluster of differentiation 4+ (CD4+) T lymphocytes and CD8+ T lymphocytes interferon-γ (IFN-γ), tumor necrosis factor-α (TNF-α) and interleukin-2 (IL-2) producers. Thus, it was concluded that DMSO has an in vitro anti-inflammatory effect by reducing lymphocyte activation demonstrated with proliferation reduction and the decrease of cytokine production.
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Affiliation(s)
- Lucas de Abreu Costa
- Immunology Laboratory, Integrated Center for Health Research, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina, MG 39100-000, Brazil.
- Multicenter Graduate Program in Physiological Sciences/UFVJM Graduate Program in Pharmaceutical Sciences/UFVJM, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, MG 39100-000, Brazil.
| | - Marcelo Henrique Fernandes Ottoni
- Immunology Laboratory, Integrated Center for Health Research, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina, MG 39100-000, Brazil.
- Institute of Science and Technology, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, MG 39100-000, Brazil.
| | - Michaelle Geralda Dos Santos
- Immunology Laboratory, Integrated Center for Health Research, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina, MG 39100-000, Brazil.
- Institute of Science and Technology, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, MG 39100-000, Brazil.
| | - Agnes Batista Meireles
- Immunology Laboratory, Integrated Center for Health Research, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina, MG 39100-000, Brazil.
- Multicenter Graduate Program in Physiological Sciences/UFVJM Graduate Program in Pharmaceutical Sciences/UFVJM, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, MG 39100-000, Brazil.
| | - Valéria Gomes de Almeida
- Immunology Laboratory, Integrated Center for Health Research, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina, MG 39100-000, Brazil.
- Institute of Science and Technology, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, MG 39100-000, Brazil.
| | - Wagner de Fátima Pereira
- Immunology Laboratory, Integrated Center for Health Research, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina, MG 39100-000, Brazil.
| | - Bethânia Alves de Avelar-Freitas
- Immunology Laboratory, Integrated Center for Health Research, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina, MG 39100-000, Brazil.
- Institute of Science and Technology, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, MG 39100-000, Brazil.
| | - Gustavo Eustáquio Alvim Brito-Melo
- Immunology Laboratory, Integrated Center for Health Research, Federal University of the Jequitinhonha and Mucuri Valleys (UFVJM), Diamantina, MG 39100-000, Brazil.
- Multicenter Graduate Program in Physiological Sciences/UFVJM Graduate Program in Pharmaceutical Sciences/UFVJM, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, MG 39100-000, Brazil.
- Institute of Science and Technology, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, MG 39100-000, Brazil.
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10
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Huang SS, Liu IH, Chen CL, Chang JM, Johnson FE, Huang JS. 7-Dehydrocholesterol (7-DHC), But Not Cholesterol, Causes Suppression of Canonical TGF-β Signaling and Is Likely Involved in the Development of Atherosclerotic Cardiovascular Disease (ASCVD). J Cell Biochem 2017; 118:1387-1400. [PMID: 27862220 PMCID: PMC6123222 DOI: 10.1002/jcb.25797] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Accepted: 11/14/2016] [Indexed: 02/02/2023]
Abstract
For several decades, cholesterol has been thought to cause ASCVD. Limiting dietary cholesterol intake has been recommended to reduce the risk of the disease. However, several recent epidemiological studies do not support a relationship between dietary cholesterol and/or blood cholesterol and ASCVD. Consequently, the role of cholesterol in atherogenesis is now uncertain. Much evidence indicates that TGF-β, an anti-inflammatory cytokine, protects against ASCVD and that suppression of canonical TGF-β signaling (Smad2-dependent) is involved in atherogenesis. We had hypothesized that cholesterol causes ASCVD by suppressing canonical TGF-β signaling in vascular endothelium. To test this hypothesis, we determine the effects of cholesterol, 7-dehydrocholesterol (7-DHC; the biosynthetic precursor of cholesterol), and other sterols on canonical TGF-β signaling. We use Mv1Lu cells (a model cell system for studying TGF-β activity) stably expressing the Smad2-dependent luciferase reporter gene. We demonstrate that 7-DHC (but not cholesterol or other sterols) effectively suppresses the TGF-β-stimulated luciferase activity. We also demonstrate that 7-DHC suppresses TGF-β-stimulated luciferase activity by promoting lipid raft/caveolae formation and subsequently recruiting cell-surface TGF-β receptors from non-lipid raft microdomains to lipid rafts/caveolae where TGF-β receptors become inactive in transducing canonical signaling and undergo rapid degradation upon TGF-β binding. We determine this by cell-surface 125 I-TGF-β-cross-linking and sucrose density gradient ultracentrifugation. We further demonstrate that methyl-β-cyclodextrin (MβCD), a sterol-chelating agent, reverses 7-DHC-induced suppression of TGF-β-stimulated luciferase activity by extrusion of 7-DHC from resident lipid rafts/caveolae. These results suggest that 7-DHC, but not cholesterol, promotes lipid raft/caveolae formation, leading to suppression of canonical TGF-β signaling and atherogenesis. J. Cell. Biochem. 118: 1387-1400, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
| | - I-Hua Liu
- Department of Pharmacology, Institute for Drug Evaluation Platform, Development Center for Biotechnology, Taipei, Taiwan
| | - Chun-Lin Chen
- Department of Biological Science, National Sun Yat-Sen University and Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University and Academia Sinica, Kaohsiung, Taiwan
| | - Jia-Ming Chang
- Department of Pharmacology, Institute for Drug Evaluation Platform, Development Center for Biotechnology, Taipei, Taiwan
| | - Frank E. Johnson
- Department of Surgery, Saint Louis University Medical Center, 3635 Vista Ave., St. Louis, Missouri 63110
| | - Jung San Huang
- Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, Doisy Research Center, 1100 S. Grand Blvd., St. Louis, Missouri 63104
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11
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Pentabromophenol suppresses TGF-β signaling by accelerating degradation of type II TGF-β receptors via caveolae-mediated endocytosis. Sci Rep 2017; 7:43206. [PMID: 28230093 PMCID: PMC5322341 DOI: 10.1038/srep43206] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 01/23/2017] [Indexed: 12/15/2022] Open
Abstract
Pentabromophenol (PBP), a brominated flame retardant (BFR), is widely used in various consumer products. BFRs exert adverse health effects such as neurotoxic and endocrine-disrupting effects. In this study, we found that PBP suppressed TGF-β response by accelerating the turnover rate of TGF-β receptors. PBP suppressed TGF-β-mediated cell migration, PAI-1 promoter-driven reporter gene activation, and Smad2/3 phosphorylation in various cell types. Furthermore, PBP abolished TGF-β-mediated repression of E-cadherin expression, in addition to the induction of vimentin expression and N-cadherin and fibronectin upregulation, thus blocking TGF-β-induced epithelial–mesenchymal transition in A549 and NMuMG cells. However, this inhibition was not observed with other congeners such as tribromophenol and triiodophenol. TGF-β superfamily members play key roles in regulating various biological processes including cell proliferation and migration as well as cancer development and progression. The results of this in vitro study provide a basis for studies on the detailed relationship between PBP and modulation of TGF-β signalling. Because PBP is similar to other BFRs such as polybrominated diphenyl ethers (PBDEs), additional laboratory and mechanistic studies should be performed to examine BFRs as potential risk factors for tumorigenesis and other TGF-β-related diseases.
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12
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Huang SS, Chen CL, Huang FW, Johnson FE, Huang JS. Ethanol Enhances TGF-β Activity by Recruiting TGF-β Receptors From Intracellular Vesicles/Lipid Rafts/Caveolae to Non-Lipid Raft Microdomains. J Cell Biochem 2015; 117:860-71. [PMID: 26419316 DOI: 10.1002/jcb.25389] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 09/28/2015] [Indexed: 12/16/2022]
Abstract
Regular consumption of moderate amounts of ethanol has important health benefits on atherosclerotic cardiovascular disease (ASCVD). Overindulgence can cause many diseases, particularly alcoholic liver disease (ALD). The mechanisms by which ethanol causes both beneficial and harmful effects on human health are poorly understood. Here we demonstrate that ethanol enhances TGF-β-stimulated luciferase activity with a maximum of 0.5-1% (v/v) in Mv1Lu cells stably expressing a luciferase reporter gene containing Smad2-dependent elements. In Mv1Lu cells, 0.5% ethanol increases the level of P-Smad2, a canonical TGF-β signaling sensor, by ∼ 2-3-fold. Ethanol (0.5%) increases cell-surface expression of the type II TGF-β receptor (TβR-II) by ∼ 2-3-fold from its intracellular pool, as determined by I(125) -TGF-β-cross-linking/Western blot analysis. Sucrose density gradient ultracentrifugation and indirect immunofluorescence staining analyses reveal that ethanol (0.5% and 1%) also displaces cell-surface TβR-I and TβR-II from lipid rafts/caveolae and facilitates translocation of these receptors to non-lipid raft microdomains where canonical signaling occurs. These results suggest that ethanol enhances canonical TGF-β signaling by increasing non-lipid raft microdomain localization of the TGF-β receptors. Since TGF-β plays a protective role in ASCVD but can also cause ALD, the TGF-β enhancer activity of ethanol at low and high doses appears to be responsible for both beneficial and harmful effects. Ethanol also disrupts the location of lipid raft/caveolae of other membrane proteins (e.g., neurotransmitter, growth factor/cytokine, and G protein-coupled receptors) which utilize lipid rafts/caveolae as signaling platforms. Displacement of these membrane proteins induced by ethanol may result in a variety of pathologies in nerve, heart and other tissues.
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Affiliation(s)
| | - Chun-Lin Chen
- Department of Biological Science, National Sun Yat-sen University, Kaohsiung, 804, Taiwan.,Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University and Academia Sinica, Kaohsiung, 804, Taiwan
| | - Franklin W Huang
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, 02115.,Harvard Medical School, Boston, Massachusetts, 02115
| | - Frank E Johnson
- Department of Surgery, Saint Louis University School of Medicine, St. Louis, Missouri, 63104
| | - Jung San Huang
- Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, Doisy Research Center, St. Louis, Missouri, 63104
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