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Brunaugh AD, Seo H, Warnken Z, Ding L, Seo SH, Smyth HDC. Development and evaluation of inhalable composite niclosamide-lysozyme particles: A broad-spectrum, patient-adaptable treatment for coronavirus infections and sequalae. PLoS One 2021; 16:e0246803. [PMID: 33571320 PMCID: PMC7877651 DOI: 10.1371/journal.pone.0246803] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/26/2021] [Indexed: 12/24/2022] Open
Abstract
Niclosamide (NIC) has demonstrated promising in vitro antiviral efficacy against SARS-CoV-2, the causative agent of the COVID-19 pandemic. Though NIC is already FDA-approved, administration of the currently available oral formulation results in systemic drug levels that are too low for the inhibition of SARS-CoV-2. We hypothesized that the co-formulation of NIC with an endogenous protein, human lysozyme (hLYS), could enable the direct aerosol delivery of the drug to the respiratory tract as an alternative to oral delivery, thereby effectively treating COVID-19 by targeting the primary site of SARS-CoV-2 acquisition and spread. To test this hypothesis, we engineered and optimized composite particles containing NIC and hLYS suitable for delivery to the upper and lower airways via dry powder inhaler, nebulizer, and nasal spray. The novel formulation demonstrates potent in vitro and in vivo activity against two coronavirus strains, MERS-CoV and SARS-CoV-2, and may offer protection against methicillin-resistance staphylococcus aureus pneumonia and inflammatory lung damage occurring secondary to SARS-CoV-2 infections. The suitability of the formulation for all stages of the disease and low-cost development approach will ensure rapid clinical development and wide-spread utilization.
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Affiliation(s)
- Ashlee D. Brunaugh
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, Austin, Texas, United States of America
| | - Hyojong Seo
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, Austin, Texas, United States of America
| | - Zachary Warnken
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, Austin, Texas, United States of America
| | - Li Ding
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, Austin, Texas, United States of America
| | - Sang Heui Seo
- Laboratory of Influenza Research, College of Veterinary Medicine, Chungnam National University, Yoseong Gu, Dajeon, Korea
| | - Hugh D. C. Smyth
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, Austin, Texas, United States of America
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Xu J, Berastegui-Cabrera J, Carretero-Ledesma M, Chen H, Xue Y, Wold EA, Pachón J, Zhou J, Sánchez-Céspedes J. Discovery of a Small Molecule Inhibitor of Human Adenovirus Capable of Preventing Escape from the Endosome. Int J Mol Sci 2021; 22:ijms22041617. [PMID: 33562748 PMCID: PMC7915867 DOI: 10.3390/ijms22041617] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 01/26/2021] [Accepted: 02/02/2021] [Indexed: 12/16/2022] Open
Abstract
Human adenoviruses (HAdVs) display a wide range of tissue tropism and can cause an array of symptoms from mild respiratory illnesses to disseminated and life-threatening infections in immunocompromised individuals. However, no antiviral drug has been approved specifically for the treatment of HAdV infections. Herein, we report our continued efforts to optimize salicylamide derivatives and discover compound 16 (JMX0493) as a potent inhibitor of HAdV infection. Compound 16 displays submicromolar IC50 values, a higher selectivity index (SI > 100) and 2.5-fold virus yield reduction compared to our hit compound niclosamide. Moreover, unlike niclosamide, our mechanistic studies suggest that the antiviral activity of compound 16 against HAdV is achieved through the inhibition of viral particle escape from the endosome, which bars subsequent uncoating and the presentation of lytic protein VI.
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Affiliation(s)
- Jimin Xu
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch (UTMB), Galveston, TX 77555, USA; (J.X.); (H.C.); (Y.X.); (E.A.W.)
| | - Judith Berastegui-Cabrera
- Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío, CSIC, University of Seville, E41013 Seville, Spain; (J.B.-C.); (M.C.-L.); (J.P.)
| | - Marta Carretero-Ledesma
- Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío, CSIC, University of Seville, E41013 Seville, Spain; (J.B.-C.); (M.C.-L.); (J.P.)
| | - Haiying Chen
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch (UTMB), Galveston, TX 77555, USA; (J.X.); (H.C.); (Y.X.); (E.A.W.)
| | - Yu Xue
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch (UTMB), Galveston, TX 77555, USA; (J.X.); (H.C.); (Y.X.); (E.A.W.)
| | - Eric A. Wold
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch (UTMB), Galveston, TX 77555, USA; (J.X.); (H.C.); (Y.X.); (E.A.W.)
| | - Jerónimo Pachón
- Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío, CSIC, University of Seville, E41013 Seville, Spain; (J.B.-C.); (M.C.-L.); (J.P.)
- Department of Medicine, University of Seville, E-41009 Seville, Spain
| | - Jia Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch (UTMB), Galveston, TX 77555, USA; (J.X.); (H.C.); (Y.X.); (E.A.W.)
- Correspondence: (J.Z.); (J.S.-C.); Tel.: +(1)-409-772-9748 (J.Z.); +(34)-955-923-100 (J.S.-C.)
| | - Javier Sánchez-Céspedes
- Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío, CSIC, University of Seville, E41013 Seville, Spain; (J.B.-C.); (M.C.-L.); (J.P.)
- Correspondence: (J.Z.); (J.S.-C.); Tel.: +(1)-409-772-9748 (J.Z.); +(34)-955-923-100 (J.S.-C.)
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Hilfenhaus G, Mompeón A, Freshman J, Prajapati DP, Hernandez G, Freitas VM, Ma F, Langenbacher AD, Mirkov S, Song D, Cho BK, Goo YA, Pellegrini M, Chen JN, Damoiseaux R, Iruela-Arispe ML. A High-Content Screen Identifies Drugs That Restrict Tumor Cell Extravasation across the Endothelial Barrier. Cancer Res 2020; 81:619-633. [PMID: 33218969 DOI: 10.1158/0008-5472.can-19-3911] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 09/11/2020] [Accepted: 11/17/2020] [Indexed: 11/16/2022]
Abstract
Metastases largely rely on hematogenous dissemination of tumor cells via the vascular system and significantly limit prognosis of patients with solid tumors. To colonize distant sites, circulating tumor cells must destabilize the endothelial barrier and transmigrate across the vessel wall. Here we performed a high-content screen to identify drugs that block tumor cell extravasation by testing 3,520 compounds on a transendothelial invasion coculture assay. Hits were further characterized and validated using a series of in vitro assays, a zebrafish model enabling three-dimensional (3D) visualization of tumor cell extravasation, and mouse models of lung metastasis. The initial screen advanced 38 compounds as potential hits, of which, four compounds enhanced endothelial barrier stability while concurrently suppressing tumor cell motility. Two compounds niclosamide and forskolin significantly reduced tumor cell extravasation in zebrafish, and niclosamide drastically impaired metastasis in mice. Because niclosamide had not previously been linked with effects on barrier function, single-cell RNA sequencing uncovered mechanistic effects of the drug on both tumor and endothelial cells. Importantly, niclosamide affected homotypic and heterotypic signaling critical to intercellular junctions, cell-matrix interactions, and cytoskeletal regulation. Proteomic analysis indicated that niclosamide-treated mice also showed reduced levels of kininogen, the precursor to the permeability mediator bradykinin. Our findings designate niclosamide as an effective drug that restricts tumor cell extravasation through modulation of signaling pathways, chemokines, and tumor-endothelial cell interactions. SIGNIFICANCE: A high-content screen identified niclosamide as an effective drug that restricts tumor cell extravasation by enhancing endothelial barrier stability through modulation of molecular signaling, chemokines, and tumor-endothelial cell interactions. GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/81/3/619/F1.large.jpg.
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Affiliation(s)
- Georg Hilfenhaus
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
| | - Ana Mompeón
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Jonathan Freshman
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
| | - Divya P Prajapati
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
| | - Gloria Hernandez
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
| | - Vanessa M Freitas
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Feiyang Ma
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
| | - Adam D Langenbacher
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
| | - Snezana Mirkov
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Dana Song
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
| | - Byoung-Kyu Cho
- Proteomics Center of Excellence, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Young Ah Goo
- Proteomics Center of Excellence, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Matteo Pellegrini
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
| | - Jau-Nian Chen
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
| | - Robert Damoiseaux
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, California
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, California
| | - M Luisa Iruela-Arispe
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California.
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, California
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Li Z, Xu J, Lang Y, Fan X, Kuo L, D'Brant L, Hu S, Samrat SK, Trudeau N, Tharappel AM, Rugenstein N, Koetzner CA, Zhang J, Chen H, Kramer LD, Butler D, Zhang QY, Zhou J, Li H. JMX0207, a Niclosamide Derivative with Improved Pharmacokinetics, Suppresses Zika Virus Infection Both In Vitro and In Vivo. ACS Infect Dis 2020; 6:2616-2628. [PMID: 32866370 PMCID: PMC7559020 DOI: 10.1021/acsinfecdis.0c00217] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Flaviviruses causes significant human disease. Recent outbreaks of the Zika virus highlight the need to develop effective therapies for this class of viruses. Previously we identified niclosamide as a broad-spectrum inhibitor for flaviviruses by targeting the interface between viral protease NS3 and its cofactor NS2B. Here, we screened a small library of niclosamide derivatives and identified a new analogue with improved pharmacokinetic properties. Compound JMX0207 showed improved efficacy in inhibition of the molecular interaction between NS3 and NS2B, better inhibition of viral protease function, and enhanced antiviral efficacy in the cell-based antiviral assay. The derivative also significantly reduced Zika virus infection on 3D mini-brain organoids derived from pluripotent neural stem cells. Intriguingly, the compound significantly reduced viremia in a Zika virus (ZIKV) animal model. In summary, a niclosamide derivative, JMX0207, was identified, which shows improved pharmacokinetics and efficacy against Zika virus both in vitro and in vivo.
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Affiliation(s)
- Zhong Li
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
| | - Jimin Xu
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Yuekun Lang
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
| | - Xiaoyu Fan
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, Arizona 85721, United States
| | - Lili Kuo
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
| | - Lianna D'Brant
- The Neural Stem Cell Institute, 1 Discovery Drive, Rensselaer, New York 12144, United States
| | - Saiyang Hu
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
| | - Subodh Kumar Samrat
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
| | - Nicole Trudeau
- The Neural Stem Cell Institute, 1 Discovery Drive, Rensselaer, New York 12144, United States
| | - Anil M Tharappel
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
| | - Natasha Rugenstein
- The Neural Stem Cell Institute, 1 Discovery Drive, Rensselaer, New York 12144, United States
| | - Cheri A Koetzner
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
| | - Jing Zhang
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
| | - Haiying Chen
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Laura D Kramer
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
- Department of Biomedical Sciences, School of Public Health, University at Albany, Albany, New York 12201, United States
| | - David Butler
- The Neural Stem Cell Institute, 1 Discovery Drive, Rensselaer, New York 12144, United States
| | - Qing-Yu Zhang
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, Arizona 85721, United States
| | - Jia Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Hongmin Li
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
- Department of Biomedical Sciences, School of Public Health, University at Albany, Albany, New York 12201, United States
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Wu MM, Zhang Z, Tong CWS, Yan VW, Cho WCS, To KKW. Repurposing of niclosamide as a STAT3 inhibitor to enhance the anticancer effect of chemotherapeutic drugs in treating colorectal cancer. Life Sci 2020; 262:118522. [PMID: 33011217 DOI: 10.1016/j.lfs.2020.118522] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/20/2020] [Accepted: 09/27/2020] [Indexed: 02/06/2023]
Abstract
AIMS Colorectal cancer (CRC) is the third most common cancer worldwide. Mutation of various cell signaling molecules or aberrant activation of signaling pathways leads to poor response to chemotherapy in CRC. Signal transducer and activator of transcription protein 3 (STAT3) is an important signaling molecule, which plays crucial roles in regulating cell survival and growth. In this study, the potentitation of chemotherapy by putative STAT3 inhibitors for treating CRC was investigated. MAIN METHODS A few putative STAT3 inhibitors were investigated. Niclosamide, originally indicated for the treatment of tapeworm infection, was chosen for further investigation in five CRC cell lines (HCT116, HT29, HCC2998, LoVo and SW480). Western blot analysis was used to evaluate the expression of STAT3/phospho-STAT3 and its downstream targets. Sulforhodamine B assay was used to evaluate the cytotoxicity of drug combinations. Flow cytometric assays were used to investigate the apoptotic and cell cycle effect. KEY FINDINGS Niclosamide was found to inhibit expression and activation of STAT3 in a concentration- and time-dependent manner, thereby downregulating STAT3 downstream targets including survivin and cyclin-D1 to induce apoptosis and cell cycle arrest. When combined with niclosamide or specific STAT3 inhibitor (C188-9), the cytotoxicity and DNA damage response from SN38 (the active metabolite from irinotecan) were significantly enhanced. The sequential exposure of SN38 followed by niclosamide was found to be the most potent treatment sequence for the drug combination. SIGNIFICANCE Niclosamide represents a promising candidate for repurposing to potentiate the anticancer activity of chemotherapeutic drugs.
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Affiliation(s)
- Mia M Wu
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Z Zhang
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Christy W S Tong
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - ViVi W Yan
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - William C S Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong, SAR, China
| | - Kenneth K W To
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China.
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Xiong T, Jiang N, Xu S, Li SZ, Zhang Y, Xu XJ, Dong HF, Zhao QP. Metabolic profiles of Oncomelania hupensis after molluscicidal treatment: Carbohydrate metabolism targeted and energy deficiency. Acta Trop 2020; 210:105580. [PMID: 32533936 DOI: 10.1016/j.actatropica.2020.105580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 04/17/2020] [Accepted: 06/08/2020] [Indexed: 11/18/2022]
Abstract
Oncomelania hupensis is the intermediate host of Schistosoma japonicum, one of the Schistosoma species that can cause human schistosomiasis. Molluscicidal treatment remains the primary means to control snail. Niclosamide is the only molluscicide recommended by the World Health Organization, and it has been used throughout schistosomiasis-endemic areas in China for almost 30 years. In our previous studies on transcriptomics, morphology, and enzymology of snails after molluscicidal treatment, two effective molluscicides were used, 50% wettable powder of niclosamide ethanolamine salt (WPN) and a new molluscicide derived from niclosamide, the salt of quinoid-2', 5-dichloro-4'-nitro-salicylanilide (LDS, simplified for Liu Dai Shui Yang An). Genes involved in cell structure mintenance, inhibition of neurohumoral transmission, and energy metabolism showed significant differential expression after molluscicide treatments. Damages in the structure of liver and muscle cells were accompanied by inhibited activities of enzymes related to carbohydrate metabolism and energy supply. This study was designed to clarify the dynamic metabolic process by metabonomics, together with the previous transcriptomic and enzymological profiles, to identify potential metabolite markers and metabolism pathways that related to the toxic mechanism of the molluscicide. In total, 56 metabolites were identified for O. hupensis, and 75% of these metabolites consisted of amino acids and derivatives, organic acids, and nucleic acid components. The concentration of glucose, maltose, succinate, choline, and alanine changed significantly after molluscicide treatments. These changes in metabolites mainly occurred in the process of carbohydrate metabolism, energy metabolism, and amino acid metabolism, primarily related to glycolysis/gluconeogenesis, oxidative phosphorylation, and transamination by KEGG pathway identification. Most of the identified pathways were also related to those differentially expressed unigenes and observed enzymes from our previous studies. Inhibited aerobic respiration and oxidative phosphorylation, and energy deficiency were implied further to be the leading causes of the final death of snails after molluscicide treatments. The hypothesised mathematical model in this study identified the rational hysteresis to explain the inconsistency of responses of unigenes, enzymes, and metabolites to molluscicide treatments. This study contributes to the comprehensive understanding of the molluscicidal mechanism in the metabolic process and this could assist in improving existing molluscicide formulations or development of new molluscicides.
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Affiliation(s)
- Tao Xiong
- Department of Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei Province, China; Department of Microbiology, School of Medical Sciences, Hunan University of Chinese Medicine, Changsha 410208, Hunan Province, China
| | - Ni Jiang
- Department of Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Sha Xu
- Department of Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Shi Zhu Li
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Center for Tropical Diseases Research, WHO Collaborating Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, Ministry of Health, Shanghai 200025, China
| | - Yan Zhang
- Department of Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Xing Jian Xu
- Institute of Schistosomiasis Control, Hubei Provincial Center for Diseases Control and Prevention, Wuhan 430079, Hubei Province, China
| | - Hui Fen Dong
- Department of Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Qin Ping Zhao
- Department of Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei Province, China.
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Braga CL, Felix NS, Teixeira DE, Vieira JB, Silva-Aguiar RP, Bose RM, Antunes MA, Rocha NDN, Caruso-Neves C, Cruz FF, Rocco PRM, Silva PL. Niclosamide attenuates lung vascular remodeling in experimental pulmonary arterial hypertension. Eur J Pharmacol 2020; 887:173438. [PMID: 32795515 DOI: 10.1016/j.ejphar.2020.173438] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 02/06/2023]
Abstract
Despite advances in medical therapy, pulmonary arterial hypertension (PAH) remains an inexorably progressive and highly lethal disease. Signal transducer and activator of transcription (STAT)-3 is one of the main intracellular transcription factors implicated in PAH vascular remodeling. We hypothesized that niclosamide, a STAT3 inhibitor, would reduce vascular remodeling in an established pulmonary arterial hypertension model, thus enhancing cardiac function. Male Wistar rats were treated either with monocrotaline (60 mg/kg), to induce PAH, or saline (C group) by intraperitoneal injection. On day 14, PAH animals were randomly assigned to receive oral (1) saline (PAH-SAL); (2) niclosamide (75 mg/kg/day) (PAH-NICLO); (3) sildenafil (20 mg/kg/day) (PAH-SIL); or (4) niclosamide + sildenafil (PAH-NICLO + SIL), once daily for 14 days. On day 28, right ventricular systolic pressure was lower in all treated groups compared to PAH-SAL. Pulmonary vascular collagen content was lower in PAH-NICLO (37 ± 3%) and PAH-NICLO + SIL (37 ± 6%) compared to PAH-SAL (68 ± 4%), but not in PAH-SIL (52 ± 1%). CD-34, an endothelial cell marker, was higher, while vimentin, a mesenchymal cell marker, was lower in PAH-NICLO and PAH-NICLO + SIL compared to PAH-SAL, suggesting attenuation of endothelial-mesenchymal transition. Expression of STAT3 downstream targets such as transforming growth factor (TGF)-β, hypoxia-inducible factor (HIF)-1, and provirus integration site for Moloney murine leukemia virus (PIM-1) in lung tissue was reduced in PAH-NICLO and PAH-NICLO + SIL compared to PAH-SAL. In conclusion, niclosamide, with or without sildenafil, mitigated vascular remodeling and improved right ventricle systolic pressure. This new role for a well-established drug may represent a promising therapy for PAH.
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Affiliation(s)
| | | | - Douglas Esteves Teixeira
- Laboratory of Biochemistry and Cell Signaling, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Rodrigo Pacheco Silva-Aguiar
- Laboratory of Biochemistry and Cell Signaling, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Nazareth de Novaes Rocha
- Laboratory of Pulmonary Investigation, Rio de Janeiro, Brazil; Fluminense Federal University, Niteroi, Brazil
| | - Celso Caruso-Neves
- Laboratory of Biochemistry and Cell Signaling, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Jeon S, Ko M, Lee J, Choi I, Byun SY, Park S, Shum D, Kim S. Identification of Antiviral Drug Candidates against SARS-CoV-2 from FDA-Approved Drugs. Antimicrob Agents Chemother 2020; 64:e00819-20. [PMID: 32366720 PMCID: PMC7318052 DOI: 10.1128/aac.00819-20] [Citation(s) in RCA: 422] [Impact Index Per Article: 105.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 04/30/2020] [Indexed: 12/16/2022] Open
Abstract
Drug repositioning is the only feasible option to immediately address the COVID-19 global challenge. We screened a panel of 48 FDA-approved drugs against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) which were preselected by an assay of SARS-CoV. We identified 24 potential antiviral drug candidates against SARS-CoV-2 infection. Some drug candidates showed very low 50% inhibitory concentrations (IC50s), and in particular, two FDA-approved drugs-niclosamide and ciclesonide-were notable in some respects.
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Affiliation(s)
- Sangeun Jeon
- Zoonotic Virus Laboratory, Institut Pasteur Korea, Seongnam, South Korea
| | - Meehyun Ko
- Zoonotic Virus Laboratory, Institut Pasteur Korea, Seongnam, South Korea
| | - Jihye Lee
- Zoonotic Virus Laboratory, Institut Pasteur Korea, Seongnam, South Korea
| | - Inhee Choi
- Medicinal Chemistry, Institut Pasteur Korea, Seongnam, South Korea
| | - Soo Young Byun
- Screening Discovery Platform, Institut Pasteur Korea, Seongnam, South Korea
| | - Soonju Park
- Screening Discovery Platform, Institut Pasteur Korea, Seongnam, South Korea
| | - David Shum
- Screening Discovery Platform, Institut Pasteur Korea, Seongnam, South Korea
| | - Seungtaek Kim
- Zoonotic Virus Laboratory, Institut Pasteur Korea, Seongnam, South Korea
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Abstract
The recent outbreak of coronavirus disease 2019 (COVID-19) highlights an urgent need for therapeutics. Through a series of drug repurposing screening campaigns, niclosamide, an FDA-approved anthelminthic drug, was found to be effective against various viral infections with nanomolar to micromolar potency such as SARS-CoV, MERS-CoV, ZIKV, HCV, and human adenovirus, indicating its potential as an antiviral agent. In this brief review, we summarize the broad antiviral activity of niclosamide and highlight its potential clinical use in the treatment of COVID-19.
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Affiliation(s)
| | | | - Hongmin Li
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
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60
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Abstract
The recent outbreak of coronavirus disease 2019 (COVID-19) highlights an urgent need for therapeutics. Through a series of drug repurposing screening campaigns, niclosamide, an FDA-approved anthelminthic drug, was found to be effective against various viral infections with nanomolar to micromolar potency such as SARS-CoV, MERS-CoV, ZIKV, HCV, and human adenovirus, indicating its potential as an antiviral agent. In this brief review, we summarize the broad antiviral activity of niclosamide and highlight its potential clinical use in the treatment of COVID-19.
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Affiliation(s)
| | | | - Hongmin Li
- Wadsworth Center, New York State Department of Health, 120 New Scotland Avenue, Albany, New York 12208, United States
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Buddenborg SK, Kamel B, Bu L, Zhang SM, Mkoji GM, Loker ES. Transcriptional responses of Biomphalaria pfeifferi and Schistosoma mansoni following exposure to niclosamide, with evidence for a synergistic effect on snails following exposure to both stressors. PLoS Negl Trop Dis 2019; 13:e0006927. [PMID: 31841501 PMCID: PMC6936870 DOI: 10.1371/journal.pntd.0006927] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 12/30/2019] [Accepted: 11/05/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Schistosomiasis is one of the world's most common NTDs. Successful control operations often target snail vectors with the molluscicide niclosamide. Little is known about how niclosamide affects snails, including for Biomphalaria pfeifferi, the most important vector for Schistosoma mansoni in Africa. We used Illumina technology to explore how field-derived B. pfeifferi, either uninfected or harboring cercariae-producing S. mansoni sporocysts, respond to a sublethal treatment of niclosamide. This study afforded the opportunity to determine if snails respond differently to biotic or abiotic stressors, and if they reserve unique responses for when presented with both stressors in combination. We also examined how sporocysts respond when their snail host is treated with niclosamide. PRINCIPAL FINDINGS Cercariae-producing sporocysts within snails treated with niclosamide express ~68% of the genes in the S. mansoni genome, as compared to 66% expressed by intramolluscan stages of S. mansoni in snails not treated with niclosamide. Niclosamide does not disable sporocysts nor does it seem to provoke from them distinctive responses associated with detoxifying a xenobiotic. For uninfected B. pfeifferi, niclosamide treatment alone increases expression of several features not up-regulated in infected snails including particular cytochrome p450s and heat shock proteins, glutathione-S-transferases, antimicrobial factors like LBP/BPI and protease inhibitors, and also provokes strong down regulation of proteases. Exposure of infected snails to niclosamide resulted in numerous up-regulated responses associated with apoptosis along with down-regulated ribosomal and defense functions, indicative of a distinctive, compromised state not achieved with either stimulus alone. CONCLUSIONS/SIGNIFICANCE This study helps define the transcriptomic responses of an important and under-studied schistosome vector to S. mansoni sporocysts, to niclosamide, and to both in combination. It suggests the response of S. mansoni sporocysts to niclosamide is minimal and not reflective of a distinct repertoire of genes to handle xenobiotics while in the snail host. It also offers new insights for how niclosamide affects snails.
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Affiliation(s)
- Sarah K. Buddenborg
- Department of Biology, Center for Evolutionary and Theoretical Immunology, University of New Mexico, Albuquerque NM United States of America
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton United Kingdom
| | - Bishoy Kamel
- Department of Biology, Center for Evolutionary and Theoretical Immunology, University of New Mexico, Albuquerque NM United States of America
| | - Lijing Bu
- Department of Biology, Center for Evolutionary and Theoretical Immunology, University of New Mexico, Albuquerque NM United States of America
| | - Si-Ming Zhang
- Department of Biology, Center for Evolutionary and Theoretical Immunology, University of New Mexico, Albuquerque NM United States of America
| | - Gerald M. Mkoji
- Center for Biotechnology Research and Development, Kenya Medical Research Institute, Nairobi KEN
| | - Eric S. Loker
- Department of Biology, Center for Evolutionary and Theoretical Immunology, University of New Mexico, Albuquerque NM United States of America
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Ma R, Ma ZG, Gao JL, Tai Y, Li LJ, Zhu HB, Li L, Dong DL, Sun ZJ. Injectable pegylated niclosamide (polyethylene glycol-modified niclosamide) for cancer therapy. J Biomed Mater Res A 2019; 108:30-38. [PMID: 31433913 DOI: 10.1002/jbm.a.36788] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 08/08/2019] [Accepted: 08/12/2019] [Indexed: 12/31/2022]
Abstract
Niclosamide is an antihelminthic drug. Recent studies show that niclosamide exerts antitumor activity through inhibiting multiple signals including Wnt/β-catenin, mTORC1, signal transducer and activator of transcription 3, NF-κB, notch signals; however, the insolubility and poor bioavailability limits its potential clinic use, the aim of the present work is to synthesize an injectable pegylated niclosamide (polyethylene glycol-modified niclosamide) and investigate its antitumor activity in vitro and in vivo. The pegylated niclosamide (mPEG5000-Nic) was synthesized and the chemical structure was identified by Fourier transform infrared spectra and 1 H nuclear magnetic resonance spectra. The antitumor activity was evaluated in CT26 and HCT116 colon cancer cells in vitro and nude mouse xenograft model of CT26 cells in vivo. The water solubility of niclosamide in mPEG5000-Nic was significantly increased. Niclosamide could be released from mPEG5000-Nic nanoparticles in PBS solution. mPEG5000-Nic inhibited the cell viability of CT26 and HCT116 cells in vitro. No animal death was observed in mice with intraperitoneal injection of mPEG5000-Nic (equivalent to 1000 mg/kg niclosamide) within 24 hr, indicating that mPEG5000-Nic was less toxic. In nude mouse, xenograft model of CT26 colon carcinoma, intraperitoneal injection of mPEG5000-Nic (equivalent to niclosamide 50 mg/kg) inhibited tumor growth but had no effect on animal body weight and heart, liver, kidney, and lung weight in vivo. Meanwhile, in the same model, intraperitoneal injection of the positive clinic drug 5-fluorouracil not only inhibited the tumor growth, but also reduced the animal body weight. Our study demonstrates that pegylated niclosamide is novel niclosamide delivery system with clinical perspective for cancer therapy.
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Affiliation(s)
- Rui Ma
- Center for Biomedical Materials and Engineering, Institute of Materials Processing and Intelligent Manufacturing, Harbin Engineering University, Harbin, People's Republic of China
| | - Zhen-Gang Ma
- Center for Biomedical Materials and Engineering, Institute of Materials Processing and Intelligent Manufacturing, Harbin Engineering University, Harbin, People's Republic of China
| | - Jin-Lai Gao
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, People's Republic of China
| | - Yu Tai
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, People's Republic of China
| | - Lan-Jun Li
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, People's Republic of China
| | - Hai-Bin Zhu
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, People's Republic of China
| | - Li Li
- Center for Biomedical Materials and Engineering, Institute of Materials Processing and Intelligent Manufacturing, Harbin Engineering University, Harbin, People's Republic of China
| | - De-Li Dong
- Department of Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, People's Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin, People's Republic of China
| | - Zhi-Jie Sun
- Center for Biomedical Materials and Engineering, Institute of Materials Processing and Intelligent Manufacturing, Harbin Engineering University, Harbin, People's Republic of China
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Cabrita I, Benedetto R, Schreiber R, Kunzelmann K. Niclosamide repurposed for the treatment of inflammatory airway disease. JCI Insight 2019; 4:128414. [PMID: 31391337 DOI: 10.1172/jci.insight.128414] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 07/02/2019] [Indexed: 12/22/2022] Open
Abstract
Inflammatory airway diseases, such as asthma, cystic fibrosis (CF), and chronic obstructive pulmonary disease (COPD), are characterized by mucus hypersecretion and airway plugging. In both CF and asthma, enhanced expression of the Ca2+-activated Cl- channel TMEM16A is detected in mucus-producing club/goblet cells and airway smooth muscle. TMEM16A contributes to mucus hypersecretion and bronchoconstriction, which are both inhibited by blockers of TMEM16A, such as niflumic acid. Here we demonstrate that the FDA-approved drug niclosamide, a potent inhibitor of TMEM16A identified by high-throughput screening, is an inhibitor of both TMEM16A and TMEM16F. In asthmatic mice, niclosamide reduced mucus production and secretion, as well as bronchoconstriction, and showed additional antiinflammatory effects. Using transgenic asthmatic mice, we found evidence that TMEM16A and TMEM16F are required for normal mucus production/secretion, which may be due to their effects on intracellular Ca2+ signaling. TMEM16A and TMEM16F support exocytic release of mucus and inflammatory mediators, both of which are blocked by niclosamide. Thus, inhibition of mucus and cytokine release, bronchorelaxation, and reported antibacterial effects make niclosamide a potentially suitable drug for the treatment of inflammatory airway diseases, such as CF, asthma, and COPD.
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64
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De Vriese K, Himschoot E, Dünser K, Nguyen L, Drozdzecki A, Costa A, Nowack MK, Kleine-Vehn J, Audenaert D, Beeckman T, Vanneste S. Identification of Novel Inhibitors of Auxin-Induced Ca 2+ Signaling via a Plant-Based Chemical Screen. Plant Physiol 2019; 180:480-496. [PMID: 30737267 PMCID: PMC6501068 DOI: 10.1104/pp.18.01393] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 01/29/2019] [Indexed: 05/06/2023]
Abstract
Many signal perception mechanisms are connected to Ca2+-based second messenger signaling to modulate specific cellular responses. The well-characterized plant hormone auxin elicits a very rapid Ca2+ signal. However, the cellular targets of auxin-induced Ca2+ are largely unknown. Here, we screened a biologically annotated chemical library for inhibitors of auxin-induced Ca2+ entry in plant cell suspensions to better understand the molecular mechanism of auxin-induced Ca2+ and to explore the physiological relevance of Ca2+ in auxin signal transduction. Using this approach, we defined a set of diverse, small molecules that interfere with auxin-induced Ca2+ entry. Based on annotated biological activities of the hit molecules, we found that auxin-induced Ca2+ signaling is, among others, highly sensitive to disruption of membrane proton gradients and the mammalian Ca2+ channel inhibitor bepridil. Whereas protonophores nonselectively inhibited auxin-induced and osmotic stress-induced Ca2+ signals, bepridil specifically inhibited auxin-induced Ca2+ We found evidence that bepridil severely alters vacuolar morphology and antagonized auxin-induced vacuolar remodeling. Further exploration of this plant-tailored collection of inhibitors will lead to a better understanding of auxin-induced Ca2+ entry and its relevance for auxin responses.
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Affiliation(s)
- Kjell De Vriese
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Gent, Belgium
| | - Ellie Himschoot
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Gent, Belgium
| | - Kai Dünser
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences Vienna (BOKU), 1190 Vienna, Austria
| | - Long Nguyen
- Screening Core, VIB, 9052 Gent, Belgium
- Centre for Bioassay Development and Screening (C-BIOS), Ghent University, 9052 Ghent, Belgium
| | - Andrzej Drozdzecki
- Screening Core, VIB, 9052 Gent, Belgium
- Centre for Bioassay Development and Screening (C-BIOS), Ghent University, 9052 Ghent, Belgium
| | - Alex Costa
- Department of Biosciences, University of Milan, 20133 Milan, Italy
| | - Moritz K Nowack
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Gent, Belgium
| | - Jürgen Kleine-Vehn
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences Vienna (BOKU), 1190 Vienna, Austria
| | - Dominique Audenaert
- Screening Core, VIB, 9052 Gent, Belgium
- Centre for Bioassay Development and Screening (C-BIOS), Ghent University, 9052 Ghent, Belgium
| | - Tom Beeckman
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Gent, Belgium
| | - Steffen Vanneste
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052 Gent, Belgium
- Lab of Plant Growth Analysis, Ghent University Global Campus, 21985 Incheon, Republic of Korea
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Fan X, Xu J, Files M, Cirillo JD, Endsley JJ, Zhou J, Endsley MA. Dual activity of niclosamide to suppress replication of integrated HIV-1 and Mycobacterium tuberculosis (Beijing). Tuberculosis (Edinb) 2019; 116S:S28-S33. [PMID: 31080089 PMCID: PMC7106448 DOI: 10.1016/j.tube.2019.04.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 12/04/2018] [Indexed: 11/24/2022]
Abstract
The human immunodeficiency virus (HIV) pandemic is driving the re-emergence of tuberculosis (TB) as a global health threat, both by increasing the susceptibility of HIV-infected people to infection with Mycobacterium tuberculosis (Mtb), and increasing the rate of emergence of drug-resistant Mtb. There are several other clinical challenges for treatment of co-infected patients including: expense, pill burden, toxicity, and malabsorption that further necessitate the search for new drugs that may be effective against both pathogens simultaneously. The anti-helminthic niclosamide has been shown to have activity against a laboratory strain of Mtb in liquid culture while bacteriostatic activity against non-replicating M. abscessus was also recently described. Here we extend these findings to further demonstrate that niclosamide inhibits mycobacterial growth in infected human macrophages and mediates potent bacteriostatic activity against the virulent Mtb Beijing strain. Importantly, we provide the first evidence that niclosamide inhibits HIV replication in human macrophages and Jurkat T cells through post-integration effects on pro-virus transcription. The dual antiviral and anti-mycobacterial activity was further observed in an in vitro model of HIV and Mtb co-infection using human primary monocyte-derived macrophages. These results support further investigation of niclosamide and derivatives as anti-retroviral/anti-mycobacterial agents that may reduce clinical challenges associated with multi-drug regimens and drug resistance.
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Affiliation(s)
- XiuZhen Fan
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA.
| | - Jimin Xu
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, USA.
| | - Megan Files
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA.
| | - Jeffrey D Cirillo
- Department of Microbial Pathogenesis and Immunology, Center for Airborne Pathogen Research and Tuberculosis Imaging, Texas A&M Health Sciences Center, College Station, TX, USA.
| | - Janice J Endsley
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA.
| | - Jia Zhou
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, USA.
| | - Mark A Endsley
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA.
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Nombela I, Requena-Platek R, Morales-Lange B, Chico V, Puente-Marin S, Ciordia S, Mena MC, Coll J, Perez L, Mercado L, Ortega-Villaizan MDM. Rainbow Trout Red Blood Cells Exposed to Viral Hemorrhagic Septicemia Virus Up-Regulate Antigen-Processing Mechanisms and MHC I&II, CD86, and CD83 Antigen-presenting Cell Markers. Cells 2019; 8:E386. [PMID: 31035565 PMCID: PMC6562805 DOI: 10.3390/cells8050386] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/13/2019] [Accepted: 04/24/2019] [Indexed: 12/13/2022] Open
Abstract
Nucleated teleost red blood cells (RBCs) are known to express molecules from the major histocompatibility complex and peptide-generating processes such as autophagy and proteasomes, but the role of RBCs in antigen presentation of viruses have not been studied yet. In this study, RBCs exposed ex vivo to viral hemorrhagic septicemia virus (VHSV) were evaluated by means of transcriptomic and proteomic approaches. Genes and proteins related to antigen presentation molecules, proteasome degradation, and autophagy were up-regulated. VHSV induced accumulation of ubiquitinated proteins in ex vivo VHSV-exposed RBCs and showed at the same time a decrease of proteasome activity. Furthermore, induction of autophagy was detected by evaluating LC3 protein levels. Sequestosome-1/p62 underwent degradation early after VHSV exposure, and it may be a link between ubiquitination and autophagy activation. Inhibition of autophagosome degradation with niclosamide resulted in intracellular detection of N protein of VHSV (NVHSV) and p62 accumulation. In addition, antigen presentation cell markers, such as major histocompatibility complex (MHC) class I & II, CD83, and CD86, increased at the transcriptional and translational level in rainbow trout RBCs exposed to VHSV. In summary, we show that nucleated rainbow trout RBCs can degrade VHSV while displaying an antigen-presenting cell (APC)-like profile.
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Affiliation(s)
- Ivan Nombela
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Universidad Miguel Hernández (UMH), 03202 Elche, Spain.
| | - Ricardo Requena-Platek
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Universidad Miguel Hernández (UMH), 03202 Elche, Spain.
| | - Byron Morales-Lange
- Instituto de Biología, Pontificia Universidad Católica de Valparaiso, 2373223 Valparaiso, Chile.
| | - Veronica Chico
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Universidad Miguel Hernández (UMH), 03202 Elche, Spain.
| | - Sara Puente-Marin
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Universidad Miguel Hernández (UMH), 03202 Elche, Spain.
| | - Sergio Ciordia
- Unidad de Proteómica, Centro Nacional de Biotecnología (CNB- CSIC), 28049 Madrid, Spain.
| | - Maria Carmen Mena
- Unidad de Proteómica, Centro Nacional de Biotecnología (CNB- CSIC), 28049 Madrid, Spain.
| | - Julio Coll
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040 Madrid, Spain.
| | - Luis Perez
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Universidad Miguel Hernández (UMH), 03202 Elche, Spain.
| | - Luis Mercado
- Instituto de Biología, Pontificia Universidad Católica de Valparaiso, 2373223 Valparaiso, Chile.
| | - Maria Del Mar Ortega-Villaizan
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Universidad Miguel Hernández (UMH), 03202 Elche, Spain.
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67
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Xu J, Pachón-Ibáñez ME, Cebrero-Cangueiro T, Chen H, Sánchez-Céspedes J, Zhou J. Discovery of niclosamide and its O-alkylamino-tethered derivatives as potent antibacterial agents against carbapenemase-producing and/or colistin resistant Enterobacteriaceae isolates. Bioorg Med Chem Lett 2019; 29:1399-1402. [PMID: 30954430 DOI: 10.1016/j.bmcl.2019.03.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/18/2019] [Accepted: 03/22/2019] [Indexed: 01/10/2023]
Abstract
Carbapenemase-producing Enterobacteriaceae (CPE) represents the most worrisome evolution of the antibiotic resistance crisis, which is almost resistant to most of available antibiotics. This situation is getting even worse particularly due to the recent emergence of colistin resistance. Herein, niclosamide, an FDA-approved traditional drug, and its novel O-alkylamino-tethered derivatives were discovered as new and potent antibacterial agents against carbapenemase-producing and/or colistin resistant Enterobacteriaceae isolates. Among these molecules, compound 10 (HJC0431) with 4-aminobutyl moiety showed the broad antibacterial activities, effective against 6 strains. In vitro checkerboard and time-kill course studies demonstrated the synergistic effects of the screened compounds with colistin against the corresponding strains with various degrees.
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Affiliation(s)
- Jimin Xu
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Blvd, Galveston, TX 77555, United States
| | - María Eugenia Pachón-Ibáñez
- Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío/CSIC/University of Seville, E41013 Seville, Spain
| | - Tania Cebrero-Cangueiro
- Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío/CSIC/University of Seville, E41013 Seville, Spain
| | - Haiying Chen
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Blvd, Galveston, TX 77555, United States
| | - Javier Sánchez-Céspedes
- Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío/CSIC/University of Seville, E41013 Seville, Spain.
| | - Jia Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Blvd, Galveston, TX 77555, United States.
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Liu Y, Luo X, Shan H, Fu Y, Gu Q, Zheng X, Dai Q, Xia F, Zheng Z, Liu P, Yin XM, Hong L, Li M. Niclosamide Triggers Non-Canonical LC3 Lipidation. Cells 2019; 8:cells8030248. [PMID: 30875964 PMCID: PMC6468753 DOI: 10.3390/cells8030248] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/07/2019] [Accepted: 03/12/2019] [Indexed: 01/19/2023] Open
Abstract
Autophagy is a highly- evolutionarily-conserved catabolic pathway activated by various cellular stresses. Recently, non-canonical autophagy (NCA), which does not require all of the ATG proteins to form autophagosome or autophagosome-like structures, has been found in various conditions. Moreover, mounting evidence has indicated that non-canonical LC3 lipidation (NCLL) may reflect NCA. We and others have reported that niclosamide (Nic), an anti-helminthic drug approved by the Food and Drug Administration, could induce canonical autophagy via a feedback downregulation of mTOR complex 1. In this study, we found that Nic could also induce NCLL, which is independent of the ULK1 complex and Beclin 1 complex, but dependent on ubiquitin-like conjugation systems. Although bafilomycin A1 and concanamycin A, two known V-ATPase inhibitors, significantly inhibited Nic-induced NCLL, Nic-induced NCLL was demonstrated to be independent of V-ATPase. In addition, the Golgi complex and vimentin were involved in Nic-induced NCLL, which might be a platform or membrane source for Nic-induced LC3-positive structures. These results would be helpful to broaden our understanding of the working mechanisms of Nic and evaluate its pharmacological activities in diseases.
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Affiliation(s)
- Yajun Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | - Xia Luo
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | - Hao Shan
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | - Yuanyuan Fu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | - Qianqian Gu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | - Xueping Zheng
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | - Qi Dai
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | - Fan Xia
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | - Zhihua Zheng
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | - Peiqing Liu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | - Xiao-Ming Yin
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
| | - Liang Hong
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
| | - Min Li
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
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Hinder LM, Sas KM, O'Brien PD, Backus C, Kayampilly P, Hayes JM, Lin CM, Zhang H, Shanmugam S, Rumora AE, Abcouwer SF, Brosius FC, Pennathur S, Feldman EL. Mitochondrial uncoupling has no effect on microvascular complications in type 2 diabetes. Sci Rep 2019; 9:881. [PMID: 30696927 PMCID: PMC6351661 DOI: 10.1038/s41598-018-37376-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 11/28/2018] [Indexed: 12/30/2022] Open
Abstract
Diabetic peripheral neuropathy (DPN), diabetic kidney disease (DKD), and diabetic retinopathy (DR) contribute to significant morbidity and mortality in diabetes patients. The incidence of these complications is increasing with the diabetes epidemic, and current therapies minimally impact their pathogenesis in type 2 diabetes (T2D). Improved mechanistic understanding of each of the diabetic complications is needed in order to develop disease-modifying treatments for patients. We recently identified fundamental differences in mitochondrial responses of peripheral nerve, kidney, and retinal tissues to T2D in BKS-db/db mice. However, whether these mitochondrial adaptations are the cause or consequence of tissue dysfunction remains unclear. In the current study BKS-db/db mice were treated with the mitochondrial uncoupler, niclosamide ethanolamine (NEN), to determine the effects of mitochondrial uncoupling therapy on T2D, and the pathogenesis of DPN, DKD and DR. Here we report that NEN treatment from 6-24 wk of age had little effect on the development of T2D and diabetic complications. Our data suggest that globally targeting mitochondria with an uncoupling agent is unlikely to provide therapeutic benefit for DPN, DKD, or DR in T2D. These data also highlight the need for further insights into the role of tissue-specific metabolic reprogramming in the pathogenesis of diabetic complications.
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Affiliation(s)
- Lucy M Hinder
- Department of Neurology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Kelli M Sas
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Phillipe D O'Brien
- Department of Neurology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Carey Backus
- Department of Neurology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Pradeep Kayampilly
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - John M Hayes
- Department of Neurology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Cheng-Mao Lin
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI, 48105, USA
| | - Hongyu Zhang
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Sumathi Shanmugam
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI, 48105, USA
| | - Amy E Rumora
- Department of Neurology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Steven F Abcouwer
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI, 48105, USA
| | - Frank C Brosius
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
- Departments of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Subramaniam Pennathur
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
- Departments of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Eva L Feldman
- Department of Neurology, University of Michigan, Ann Arbor, MI, 48109, USA.
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Thi Tran U, Kitami T. Niclosamide activates the NLRP3 inflammasome by intracellular acidification and mitochondrial inhibition. Commun Biol 2019; 2:2. [PMID: 30740538 PMCID: PMC6318214 DOI: 10.1038/s42003-018-0244-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 12/02/2018] [Indexed: 12/16/2022] Open
Abstract
The NLRP3 inflammasome is unique among pattern recognition receptors in using changes in cellular physiology as a mechanism for sensing host danger. To dissect the physiological network controlling inflammasome activation, we screened for small-molecule activators and suppressors of IL-1β release in macrophages. Here we identified niclosamide, a mitochondrial uncoupler, as an activator of NLRP3 inflammasome. We find that niclosamide inhibits mitochondria and induces intracellular acidification, both of which are necessary for inflammasome activation. Intracellular acidification, by inhibiting glycolysis, works together with mitochondrial inhibition to induce intracellular ATP loss, which compromises intracellular potassium maintenance, a key event to NLRP3 inflammasome activation. A modest decline in intracellular ATP or pH within an optimal range induces maximum IL-1β release while their excessive decline suppresses IL-1β release. Our work illustrates how energy metabolism converges upon intracellular potassium to activate NLRP3 inflammasome and highlights a biphasic relationship between cellular physiology and IL-1β release.
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Affiliation(s)
- Uyen Thi Tran
- YCI Laboratory for Cellular Bioenergetic Network, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045 Japan
| | - Toshimori Kitami
- YCI Laboratory for Cellular Bioenergetic Network, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045 Japan
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Ayerbe-Algaba R, Gil-Marqués ML, Jiménez-Mejías ME, Sánchez-Encinales V, Parra-Millán R, Pachón-Ibáñez ME, Pachón J, Smani Y. Synergistic Activity of Niclosamide in Combination With Colistin Against Colistin-Susceptible and Colistin-Resistant Acinetobacter baumannii and Klebsiella pneumoniae. Front Cell Infect Microbiol 2018; 8:348. [PMID: 30338245 PMCID: PMC6178895 DOI: 10.3389/fcimb.2018.00348] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 09/11/2018] [Indexed: 12/19/2022] Open
Abstract
Colistin is among the few antibiotics effective against multidrug-resistant Acinetobacter baumannii and Klebsiella pneumoniae clinical isolates. However, in the last few years, colistin-resistant A. baumannii and K. pneumoniae strains have emerged. Therefore, combination therapies, between colistin and other old drugs, restoring the activity of colistin are required. The main objective of this study was to analyse the activity of niclosamide, an anthelmintic drug, in combination with colistin against colistin-susceptible (Col-S) and colistin-resistant (Col-R) A. baumannii and K. pneumoniae. The MIC were determined by microdilution assay and the time-kill curves were performed. The zeta potential of Col-S and Col-R of A. baumannii and K. pneumoniae in presence of niclosamide was assessed. Niclosamide in combination with colistin showed improved activity against Col-S and Col-R A. baumannii and K. pneumoniae. Time-killing curves showed synergic activity between niclosamide and colistin against Col-S and Col-R A. baumannii and K. pneumoniae, especially when niclosamide or colistin was added for second time at 4 h of the 24 h killing curve. Col-R A. baumannii and K. pneumoniae in presence of niclosamide exhibited a greater negative charge (-34.95 ± 0.35 mV and -38.85 ± 0.92 mV; P < 0.05) than Col-R A. baumannii and K. pneumoniae in absence of niclosamide (-26.85 ± 3.65 mV and -35.27 ± 0.72 mV). These data suggest that niclosamide might be combined with colistin, being a potential alternative for treatment of Col-R Gram-negative bacilli infections.
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Affiliation(s)
- Rafael Ayerbe-Algaba
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío/CSIC/University of Seville, Seville, Spain
| | - María Luisa Gil-Marqués
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío/CSIC/University of Seville, Seville, Spain
| | - Manuel Enrique Jiménez-Mejías
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío/CSIC/University of Seville, Seville, Spain
| | - Viviana Sánchez-Encinales
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío/CSIC/University of Seville, Seville, Spain
| | - Raquel Parra-Millán
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío/CSIC/University of Seville, Seville, Spain
| | - María Eugenia Pachón-Ibáñez
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío/CSIC/University of Seville, Seville, Spain
| | - Jerónimo Pachón
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío/CSIC/University of Seville, Seville, Spain
- Department of Medicine, University of Seville, Seville, Spain
| | - Younes Smani
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University Hospital Virgen del Rocío/CSIC/University of Seville, Seville, Spain
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Han P, Zhan H, Shao M, Wang W, Song G, Yu X, Zhang C, Ge N, Yi T, Li S, Sun H. Niclosamide ethanolamine improves kidney injury in db/db mice. Diabetes Res Clin Pract 2018; 144:25-33. [PMID: 30081104 DOI: 10.1016/j.diabres.2018.08.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 06/25/2018] [Accepted: 08/01/2018] [Indexed: 12/21/2022]
Abstract
AIMS Early diabetic kidney disease (DKD) is characterized by renal hypertrophy and albuminuria. The mTOR signal pathway is closely related to DKD. This study was performed to determine the renal protection of niclosamide ethanolamine salt (NEN) which was identified as mTOR inhibitor. METHODS Type 2 diabetes (T2D) db/db mice were used and divided into db/db and db/db + NEN groups. Lean wild type mice served as T2D-control. NEN treatment lasted for 12 weeks. The kidney morphological changes, urine indices, blood glucose and metabolic symptoms were evaluated. In addition, the effects of NEN on kidney mitochondria and mTOR/4E-BP pathway were also measured. RESULTS NEN could prevent diabetic kidney hypertrophy and alleviate glomerular mesangial expansion, attenuate GBM and TBM thickening in db/db mice. It also restored podocyte dysfunction, reduced urinary albumin, NAG, NGAL, and TGF-β1 excretion. Specifically, it could uncouple kidney mitochondria and significantly inhibit renal cortical activation of mTOR/4E-BP1 pathway. CONCLUSIONS This study demonstrated that NEN could improve kidney injury in db/db mice and has the potential to translate to future clinical studies.
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Affiliation(s)
- Pengxun Han
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, China
| | - Hongyue Zhan
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, China
| | - Mumin Shao
- Department of Pathology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, China
| | - Wenjing Wang
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, China
| | - Gaofeng Song
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, China
| | - Xuewen Yu
- Department of Pathology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, China
| | - Chunlei Zhang
- Department of Clinical Laboratory, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, China
| | - Na Ge
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, China
| | - Tiegang Yi
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, China
| | - Shunmin Li
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, China.
| | - Huili Sun
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, China.
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Kao JC, HuangFu WC, Tsai TT, Ho MR, Jhan MK, Shen TJ, Tseng PC, Wang YT, Lin CF. The antiparasitic drug niclosamide inhibits dengue virus infection by interfering with endosomal acidification independent of mTOR. PLoS Negl Trop Dis 2018; 12:e0006715. [PMID: 30125275 PMCID: PMC6117097 DOI: 10.1371/journal.pntd.0006715] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 08/30/2018] [Accepted: 07/23/2018] [Indexed: 12/12/2022] Open
Abstract
Background The antiparasitic agent niclosamide has been demonstrated to inhibit the arthropod-borne Zika virus. Here, we investigated the antiviral capacity of niclosamide against dengue virus (DENV) serotype 2 infection in vitro and in vivo. Principle finding Niclosamide effectively retarded DENV-induced infection in vitro in human adenocarcinoma cells (A549), mouse neuroblastoma cells (Neuro-2a), and baby hamster kidney fibroblasts (BHK-21). Treatment with niclosamide did not retard the endocytosis of DENV while niclosamide was unable to enhance the antiviral type I interferon response. Furthermore, niclosamide did not cause a direct effect on viral replicon-based expression. Niclosamide has been reported to competitively inhibit the mTOR (mammalian target of rapamycin), STAT3 (signal transducer and activator of transcription 3), and NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) signaling pathways; however, selective inhibitors of those pathways did not reduce DENV infection. Similar to the vacuolar-type H+-ATPase inhibitor bafilomycin A1, both niclosamide and other protonophores, such as CCCP (carbonyl cyanide m-chlorophenyl hydrazone), and FCCP (carbonyl cyanide-p-trifluoromethoxyphenylhydrazone), effectively reduced endosomal acidification and viral dsRNA replication. Co-administration of a single dose of niclosamide partially decreased viral replication, viral encephalitis, and mortality in DENV-infected ICR suckling mice. Significance These results demonstrate that niclosamide diminishes viral infection by hindering endosomal acidification. Dengue and severe dengue cause global health concerns annually. Without antiviral drugs, supportive care is the only treatment option for patients with DENV infection. A current vaccine has been approved for protection against DENV infection; however, the potential risks and challenges associated with the immunopathogenesis of DENV remain unresolved. For anti-dengue therapy, the repurposing of drugs with antimicrobial and anticancer properties is a possible pharmacological strategy. In this study, we evaluated the potential antiviral effects of the antiparasitic drug niclosamide, considering its current pharmacological efficacy against arthropod-borne Zika virus infection. Using in vitro and in vivo models of DENV infection, we demonstrated that one of the therapeutic effects of niclosamide is to significantly target endosomal acidification. Following safety screening, repurposing niclosamide treatment may facilitate the development of anti-dengue drugs in the near future.
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Affiliation(s)
- Jo-Chi Kao
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Chun HuangFu
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Tsung-Ting Tsai
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Min-Ru Ho
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ming-Kai Jhan
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ting-Jing Shen
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Po-Chun Tseng
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yung-Ting Wang
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chiou-Feng Lin
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
- * E-mail:
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Qiang Z, Li-Xin W, Qi-Hui Y, Jun Y, De-Rong H, Yi-Xin H. [Field molluscicidal effect of water-free formulations of niclosamide ethanolamine salt against Oncomelania hupensis snails in a marshland]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2018; 30:443-445. [PMID: 30350512 DOI: 10.16250/j.32.1374.2018110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To evaluate the molluscicidal effects of various water-free formulations of niclosamide ethanolamine salt against Oncomelania hupensis in the field of marshlands along the Yangtze River. METHODS The river beach with O. hupensis snails were selected as the test field in the marshland along the Yangtze River in Pukou District, Nanjing City. A molluscicidal experiment was carried out by the mechanical dusting method with the dustable powder (DP), powder-granule (PG), granule (GR) of niclosamide ethanolamine salt respectively. The snail mortality, corrected mortality, and the reduced rate of snails' density were parallel compared among DP, PG and GR. RESULTS On the 3rd day after the dusting, the snail mortality rates were 66.67%, 67.24%, and 66.87% in the DP, PG, and GR groups respectively, on the 7th day after the dusting, the snail mortality rates were 75.36%, 79.73%, and 73.97% in the DP, PG, and GR groups respectively, and there was no significant difference among the groups (χ2 = 0.006, 0.895, both P > 0.05). On the 15th day after the dusting, the snail mortality rates were 86.92%, 72.86%, and 71.43% in the DP, PG, and GR groups respectively, and there was a significant difference among the groups (χ2 = 9.709, P < 0.01). The snail mortality in the DP group was significantly higher than that in the PG, and GR groups. The curves of the snail corrected mortality and reduced rate of snails'density presented steadily rising trends in the DP group, but presented falling trends in the PG and GR groups on the 15th day after the dusting. CONCLUSIONS The molluscicidal effect of DP is stable and effective in the marshland along the Yangtze River, but the drift of the powder is still not effectively controlled. It is necessary that the different dosage forms are perfected.
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Affiliation(s)
- Zhou Qiang
- Pukou District Center for Disease Control and Prevention, Nanjing City, Jiangsu Province, Nanjing 210031, China
| | - Wan Li-Xin
- Pukou District Center for Disease Control and Prevention, Nanjing City, Jiangsu Province, Nanjing 210031, China
| | - You Qi-Hui
- Pukou District Center for Disease Control and Prevention, Nanjing City, Jiangsu Province, Nanjing 210031, China
| | - You Jun
- Pukou District Center for Disease Control and Prevention, Nanjing City, Jiangsu Province, Nanjing 210031, China
| | - Hang De-Rong
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Schistosomiasis, China
| | - Huang Yi-Xin
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Schistosomiasis, China
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Chien MH, Ho YC, Yang SF, Yang YC, Lai SY, Chen WS, Chen MJ, Yeh CB. Niclosamide, an oral antihelmintic drug, exhibits antimetastatic activity in hepatocellular carcinoma cells through downregulating twist-mediated CD10 expression. Environ Toxicol 2018; 33:659-669. [PMID: 29480568 DOI: 10.1002/tox.22551] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 02/07/2018] [Accepted: 02/11/2018] [Indexed: 06/08/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignancies in the world, especially, in eastern Asia, and its prognosis is poor once metastasis occurs. Niclosamide, a US Food and Drug Administration-approved antihelmintic drug, was shown to inhibit the growth of various cancers including HCC, but the effect of niclosamide on cell motility and the underlying mechanism have not yet been completely defined. The present study demonstrated that niclosamide, at 0-40 nM, concentration-dependently inhibited wound closure and the migratory/invasive capacities of human Huh7 and SK-Hep-1 HCC cells without exhibiting cytotoxicity. A protease array analysis showed that CD10 was dramatically downregulated in Huh7 cells after niclosamide treatment. Western blot and flow cytometric assays further demonstrated that CD10 expression was concentration-dependently downregulated in Huh7 and SK-Hep-1 cells after niclosamide treatment. Mechanistic investigations found that niclosamide suppressed Twist-mediated CD10 transactivation. Moreover, knockdown of CD10 expression by CD10 small interfering RNA in HCC cells suppressed cell migratory/invasive abilities and overexpression of CD10 relieved the migration inhibition induced by niclosamide. Taken together, our results indicated that niclosamide could be a potential agent for inhibiting metastasis of HCC, and CD10 is an important target of niclosamide for suppressing the motility of HCC cells.
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Affiliation(s)
- Ming-Hsien Chien
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Medical Education and Research, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Yung-Chuan Ho
- School of Medical Applied Chemistry, Chung Shan Medical University, Taichung, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yi-Chieh Yang
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- The Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Szu-Yu Lai
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Wan-Shen Chen
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ming-Jenn Chen
- Department of Surgery, Chi Mei Medical Center, Tainan, Taiwan
| | - Chao-Bin Yeh
- Department of Emergency Medicine, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Emergency Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
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Yu X, Liu F, Zeng L, He F, Zhang R, Yan S, Zeng Z, Shu Y, Zhao C, Wu X, Lei J, Zhang W, Yang C, Wu K, Wu Y, An L, Huang S, Ji X, Gong C, Yuan C, Zhang L, Feng Y, Huang B, Liu W, Zhang B, Dai Z, Wang X, Liu B, Haydon RC, Luu HH, Gan H, He TC, Chen L. Niclosamide Exhibits Potent Anticancer Activity and Synergizes with Sorafenib in Human Renal Cell Cancer Cells. Cell Physiol Biochem 2018; 47:957-971. [PMID: 29843133 DOI: 10.1159/000490140] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/24/2018] [Indexed: 12/09/2022] Open
Abstract
BACKGROUND/AIMS As the most lethal urological cancers, renal cell carcinoma (RCC) comprises a heterogeneous group of cancer with diverse genetic and molecular alterations. There is an unmet clinical need to develop efficacious therapeutics for advanced, metastatic and/or relapsed RCC. Here, we investigate whether anthelmintic drug Niclosamide exhibits anticancer activity and synergizes with targeted therapy Sorafenib in suppressing RCC cell proliferation. METHODS Cell proliferation and migration were assessed by Crystal violet staining, WST-1 assay, cell wounding and cell cycle analysis. Gene expression was assessed by qPCR. In vivo anticancer activity was assessed in xenograft tumor model. RESULTS We find that Niclosamide effectively inhibits cell proliferation, cell migration and cell cycle progression, and induces apoptosis in human renal cancer cells. Mechanistically, Niclosamide inhibits the expression of C-MYC and E2F1 while inducing the expression of PTEN in RCC cells. Niclosamide is further shown to synergize with Sorafenib in suppressing RCC cell proliferation and survival. In the xenograft tumor model, Niclosamide is shown to effectively inhibit tumor growth and suppress RCC cell proliferation. CONCLUSIONS Niclosamide may be repurposed as a potent anticancer agent, which can potentiate the anticancer activity of the other agents targeting different signaling pathways in the treatment of human RCC.
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Affiliation(s)
- Xinyi Yu
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, Plastic Surgery and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Feng Liu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Liyi Zeng
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Department of Infection Control, Zhuzhou Central Hospital, and the Affiliated Zhuzhou Hospital of Xiangya Medical College of Central South University, Zhuzhou, China
| | - Fang He
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, Plastic Surgery and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Ruyi Zhang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Shujuan Yan
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Zongyue Zeng
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Yi Shu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing, China
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Chen Zhao
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, Plastic Surgery and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Xingye Wu
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, Plastic Surgery and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Jiayan Lei
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, Plastic Surgery and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Wenwen Zhang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Department of Obstetrics and Gynecology, the Affiliated University-Town Hospital, Chongqing Medical University, Chongqing, China
| | - Chao Yang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Ke Wu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Ying Wu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Department of Immunology and Microbiology, Beijing University of Chinese Medicine, Beijing, China
| | - Liping An
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Key Laboratory of Orthopaedic Surgery of Gansu Province and the Department of Orthopaedic Surgery, the Second Hospital of Lanzhou University, Lanzhou, China
| | - Shifeng Huang
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, Plastic Surgery and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Xiaojuan Ji
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Cheng Gong
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Department of Surgery, the Affiliated Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Chengfu Yuan
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Department of Biochemistry and Molecular Biology, China Three Gorges University School of Medicine, Yichang, China
| | - Linghuan Zhang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Stem Cell Biology and Therapy Laboratory, Ministry of Education Key Laboratory of Child Development and Disorders, The Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yixiao Feng
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, Plastic Surgery and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Bo Huang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Department of Infection Control, Zhuzhou Central Hospital, and the Affiliated Zhuzhou Hospital of Xiangya Medical College of Central South University, Zhuzhou, China
- Department of Clinical Laboratory Medicine, the Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wei Liu
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, Plastic Surgery and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Bo Zhang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Key Laboratory of Orthopaedic Surgery of Gansu Province and the Department of Orthopaedic Surgery, the Second Hospital of Lanzhou University, Lanzhou, China
| | - Zhengyu Dai
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Department of Orthopaedic Surgery, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, China
| | - Xi Wang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Bo Liu
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, Plastic Surgery and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Rex C Haydon
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Hue H Luu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Hua Gan
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, Plastic Surgery and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
| | - Liqun Chen
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, Plastic Surgery and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, Illinois, USA
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77
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Alasadi A, Chen M, Swapna GVT, Tao H, Guo J, Collantes J, Fadhil N, Montelione GT, Jin S. Effect of mitochondrial uncouplers niclosamide ethanolamine (NEN) and oxyclozanide on hepatic metastasis of colon cancer. Cell Death Dis 2018; 9:215. [PMID: 29440715 PMCID: PMC5833462 DOI: 10.1038/s41419-017-0092-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 08/25/2017] [Accepted: 09/20/2017] [Indexed: 02/06/2023]
Abstract
Metabolism of cancer cells is characterized by aerobic glycolysis, or the Warburg effect. Aerobic glycolysis reduces pyruvate flux into mitochondria, preventing a complete oxidation of glucose and shunting glucose to anabolic pathways essential for cell proliferation. Here we tested a new strategy, mitochondrial uncoupling, for its potential of antagonizing the anabolic effect of aerobic glycolysis and for its potential anticancer activities. Mitochondrial uncoupling is a process that facilitates proton influx across the mitochondrial inner membrane without generating ATP, stimulating a futile cycle of acetyl- CoA oxidation. We tested two safe mitochondrial uncouplers, NEN (niclosamide ethanolamine) and oxyclozanide, on their metabolic effects and anti-cancer activities. We used metabolomic NMR to examine the effect of mitochondrial uncoupling on glucose metabolism in colon cancer MC38 cells. We further tested the anti-cancer effect of NEN and oxyclozanide in cultured cell models, APCmin/+ mouse model, and a metastatic colon cancer mouse model. Using a metabolomic NMR approach, we demonstrated that mitochondrial uncoupling promotes pyruvate influx to mitochondria and reduces various anabolic pathway activities. Moreover, mitochondrial uncoupling inhibits cell proliferation and reduces clonogenicity of cultured colon cancer cells. Furthermore, oral treatment with mitochondrial uncouplers reduces intestinal polyp formation in APCmin/+ mice, and diminishes hepatic metastasis of colon cancer cells transplanted intrasplenically. Our data highlight a unique approach for targeting cancer cell metabolism for cancer prevention and treatment, identified two prototype compounds, and shed light on the anti-cancer mechanism of niclosamide.
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Affiliation(s)
- Amer Alasadi
- Department of Pharmacology, Robert Wood Johnson Medical School, Rutgers - The State University of New Jersey, 675 Hoes Lane West, Piscataway, NJ, 08854, USA
- Graduate Program of Physiology and Integrative Biology, Robert Wood Johnson Medical School, Rutgers - The State University of New Jersey, 675 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Michael Chen
- Department of Pharmacology, Robert Wood Johnson Medical School, Rutgers - The State University of New Jersey, 675 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - G V T Swapna
- Center for Advanced Biotechnology and Medicine, and Department of Molecular Biology and Biochemistry, Rutgers - The State University of New Jersey, 679 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Hanlin Tao
- Department of Pharmacology, Robert Wood Johnson Medical School, Rutgers - The State University of New Jersey, 675 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Jingjing Guo
- Department of Pharmacology, Robert Wood Johnson Medical School, Rutgers - The State University of New Jersey, 675 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Juan Collantes
- Department of Pharmacology, Robert Wood Johnson Medical School, Rutgers - The State University of New Jersey, 675 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Noor Fadhil
- Department of Pharmacology, Robert Wood Johnson Medical School, Rutgers - The State University of New Jersey, 675 Hoes Lane West, Piscataway, NJ, 08854, USA
- Clinical and Translational Science Program, Robert Wood Johnson Medical School, Rutgers - The State University of New Jersey, 675 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Gaetano T Montelione
- Center for Advanced Biotechnology and Medicine, and Department of Molecular Biology and Biochemistry, Rutgers - The State University of New Jersey, 679 Hoes Lane West, Piscataway, NJ, 08854, USA
- Department of Biochemistry and Molecular Biology, Robert Wood Johnson Medical School, Rutgers - The State University of New Jersey, 675 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Shengkan Jin
- Department of Pharmacology, Robert Wood Johnson Medical School, Rutgers - The State University of New Jersey, 675 Hoes Lane West, Piscataway, NJ, 08854, USA.
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78
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Cheng B, Morales LD, Zhang Y, Mito S, Tsin A. Niclosamide induces protein ubiquitination and inhibits multiple pro-survival signaling pathways in the human glioblastoma U-87 MG cell line. PLoS One 2017; 12:e0184324. [PMID: 28877265 PMCID: PMC5587337 DOI: 10.1371/journal.pone.0184324] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 08/22/2017] [Indexed: 11/18/2022] Open
Abstract
Glioblastoma is the most common and lethal malignant primary brain tumor for which the development of efficacious chemotherapeutic agents remains an urgent need. The anti-helminthic drug niclosamide, which has long been in use to treat tapeworm infections, has recently attracted renewed interest due to its apparent anticancer effects in a variety of in vitro and in vivo cancer models. However, the mechanism(s) of action remains to be elucidated. In the present study, we found that niclosamide induced cell toxicity in human glioblastoma cells corresponding with increased protein ubiquitination, ER stress and autophagy. In addition, niclosamide treatment led to down-regulation of Wnt/β-catenin, PI3K/AKT, MAPK/ERK, and STAT3 pro-survival signal transduction pathways to further reduce U-87 MG cell viability. Taken together, these results provide new insights into the glioblastoma suppressive capabilities of niclosamide, showing that niclosamide can target multiple major cell signaling pathways simultaneously to effectively promote cell death in U-87 MG cells. Niclosamide constitutes a new prospect for a therapeutic treatment against human glioblastoma.
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Affiliation(s)
- Benxu Cheng
- Department of Biomedical Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, Texas, United States of America
- * E-mail:
| | - Liza Doreen Morales
- South Texas Diabetes and Obesity Institute, School of Medicine, University of Texas Rio Grande Valley, Edinburg, Texas, United States of America
| | - Yonghong Zhang
- Department of Chemistry, University of Texas Rio Grande Valley, Edinburg, Texas, United States of America
| | - Shizue Mito
- Department of Chemistry, University of Texas Rio Grande Valley, Edinburg, Texas, United States of America
| | - Andrew Tsin
- Department of Biomedical Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, Texas, United States of America
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Bhattacharyya J, Ren XR, Mook RA, Wang J, Spasojevic I, Premont RT, Li X, Chilkoti A, Chen W. Niclosamide-conjugated polypeptide nanoparticles inhibit Wnt signaling and colon cancer growth. Nanoscale 2017; 9:12709-12717. [PMID: 28828438 PMCID: PMC5863494 DOI: 10.1039/c7nr01973d] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Abnormal Wnt activity is a major mechanism responsible for many diseases, including cancer. Previously, we reported that the anthelmintic drug Niclosamide (NIC) inhibits Wnt/β-catenin signaling and suppresses colon cancer cell growth. Although the pharmacokinetic properties of NIC are appropriate for use as an anthelmintic agent, its low solubility, low bioavailability and low systemic exposure limit its usefulness in treating systemic diseases. To overcome these limitations, we conjugated NIC to recombinant chimeric polypeptides (CPs), and the CP-NIC conjugate spontaneously self-assembled into sub-100 nm near-monodisperse nanoparticles. CP-NIC nanoparticles delivered intravenously act as a pro-drug of NIC to dramatically increase exposure of NIC compared to dosing with free NIC. CP-NIC improved anti-tumor activity compared to NIC in a xenograft model of human colon cancer. Because NIC has multiple biological activities, CP-NIC could be used for treatment of multiple diseases, including cancer, bacterial and viral infection, type II diabetes, NASH and NAFLD.
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Affiliation(s)
- Jayanta Bhattacharyya
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, United States
| | - Xiu-Rong Ren
- Department of Medicine, Duke University Medical Center, Durham, NC 27710, United States
| | - Robert A. Mook
- Department of Medicine, Duke University Medical Center, Durham, NC 27710, United States
| | - Jiangbo Wang
- Department of Medicine, Duke University Medical Center, Durham, NC 27710, United States
| | - Ivan Spasojevic
- Duke Cancer Institute, PK/PD Core Laboratory, Durham, NC 27710, United States
| | - Richard T. Premont
- Department of Medicine, Duke University Medical Center, Durham, NC 27710, United States
| | - Xinghai Li
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, United States
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, United States
| | - Wei Chen
- Department of Medicine, Duke University Medical Center, Durham, NC 27710, United States
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80
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Abstract
3-Trifluromethyl-4-nitrophenol (TFM) and 2',5-dichloro-4'-nitrosalicylanilide (niclosamide) are lampricides used in tributaries of the Great Lakes to kill the invasive parasitic sea lamprey (Petromyzon marinus). Although the lampricides have been applied since the late 1950s, their photochemical behavior in natural environments is still not well understood. This study examines the indirect photodegradation of these two compounds and the resulting yields of organic and inorganic photoproducts in water samples collected from five tributaries of Lake Michigan. The tributaries were selected to span the length of Lake Michigan and its natural carbonate geologic gradient. In the presence of dissolved organic matter (DOM), the niclosamide photodegradation rate triples, while the rate of TFM photodegradation is unchanged. Additionally, the yield of lampricide organic products is influenced by DOM because many of the organic photoproducts themselves are prone to DOM-mediated indirect photodegradation. The indirect photodegradation of niclosamide is primarily mediated by reaction with singlet oxygen, which accounts for more than 50% of the increased photodegradation rate. Additionally, hydroxyl radicals and carbonate radicals (CO3-˙) influence niclosamide indirect photolysis, and their contribution is dependent on the specific river water chemistry. For example, CO3-˙ contribution to niclosamide photodegradation, while small, is greater in southern tributaries where there is higher carbonate alkalinity.
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Affiliation(s)
- Megan B McConville
- Environmental Chemistry and Technology Program, University of Wisconsin - Madison, Madison, Wisconsin, USA.
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81
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Mook RA, Ren XR, Wang J, Piao H, Barak LS, Kim Lyerly H, Chen W. Benzimidazole inhibitors from the Niclosamide chemotype inhibit Wnt/β-catenin signaling with selectivity over effects on ATP homeostasis. Bioorg Med Chem 2017; 25:1804-1816. [PMID: 28233680 PMCID: PMC5490664 DOI: 10.1016/j.bmc.2017.01.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 01/19/2017] [Accepted: 01/25/2017] [Indexed: 10/20/2022]
Abstract
The Wnt signaling pathway plays a key role in organ and tissue homeostasis, and when dysregulated, can become a major underlying mechanism of disease, particularly cancer. We reported previously that the anthelmintic drug Niclosamide inhibits Wnt/β-catenin signaling and suppresses colon cancer cell growth in vitro and in vivo. To define Niclosamide's mechanism of Wnt/β-catenin inhibition, and to improve its selectivity and pharmacokinetic properties as an anticancer treatment, we designed a novel class of benzimidazole inhibitors of Wnt/β-catenin signaling based on SAR studies of the Niclosamide salicylanilide chemotype. Niclosamide has multiple biological activities. To address selectivity in our design, we interrogated a protonophore SAR model and used the principle of conformational restriction to identify novel Wnt/β-catenin inhibitors with less effect on ATP cellular homeostasis. These studies led to the identification of 4-chloro-2-(5-(trifluoromethyl)-1H-benzo[d]imidazol-2-yl) phenol (4) and related derivatives with greater selectivity for Wnt/β-catenin signaling inhibition vs. differential effects on cellular ATP homeostasis. This is the first report that the Wnt signaling inhibitory activity of Niclosamide can be translated into a new chemical class and to show that its effects on ATP homeostasis can be separated from its inhibitory effects on Wnt signaling. These compounds could be useful tools to elucidate the mechanism of Niclosamide's inhibition of Wnt signaling, and aid the discovery of inhibitors with improved pharmacologic properties to treat cancer and diseases in which Niclosamide has important biological activity.
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Affiliation(s)
- Robert A Mook
- Department of Medicine, Duke University Medical Center, Durham, NC 27710, United States.
| | - Xiu-Rong Ren
- Department of Medicine, Duke University Medical Center, Durham, NC 27710, United States
| | - Jiangbo Wang
- Department of Medicine, Duke University Medical Center, Durham, NC 27710, United States
| | - Hailan Piao
- Department of Medicine, Duke University Medical Center, Durham, NC 27710, United States
| | - Larry S Barak
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, United States
| | - H Kim Lyerly
- Department of Surgery, Duke University Medical Center, Durham, NC 27710, United States
| | - Wei Chen
- Department of Medicine, Duke University Medical Center, Durham, NC 27710, United States.
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Arend RC, Londoño-Joshi AI, Gangrade A, Katre AA, Kurpad C, Li Y, Samant RS, Li PK, Landen CN, Yang ES, Hidalgo B, Alvarez RD, Michael Straughn J, Forero A, Buchsbaum DJ. Niclosamide and its analogs are potent inhibitors of Wnt/β-catenin, mTOR and STAT3 signaling in ovarian cancer. Oncotarget 2016; 7:86803-86815. [PMID: 27888804 PMCID: PMC5349955 DOI: 10.18632/oncotarget.13466] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 10/29/2016] [Indexed: 12/19/2022] Open
Abstract
Epithelial ovarian cancer (EOC) is the leading cause of gynecologic cancer mortality worldwide. Platinum-based therapy is the standard first line treatment and while most patients initially respond, resistance to chemotherapy usually arises. Major signaling pathways frequently upregulated in chemoresistant cells and important in the maintenance of cancer stem cells (CSCs) include Wnt/β-catenin, mTOR, and STAT3. The major objective of our study was to investigate the treatment of ovarian cancer with targeted agents that inhibit these three pathways. Here we demonstrate that niclosamide, a salicylamide derivative, and two synthetically manufactured niclosamide analogs (analog 11 and 32) caused significant inhibition of proliferation of two chemoresistant ovarian cancer cell lines (A2780cp20 and SKOV3Trip2), tumorspheres isolated from the ascites of EOC patients, and cells from a chemoresistant patient-derived xenograft (PDX). This work shows that all three agents significantly decreased the expression of proteins in the Wnt/β-catenin, mTOR and STAT3 pathways and preferentially targeted cells that expressed the ovarian CSC surface protein CD133. It also illustrates the potential of drug repurposing for chemoresistant EOC and can serve as a basis for pathway-oriented in vivo studies.
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Affiliation(s)
- Rebecca C. Arend
- University of Alabama at Birmingham, Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Birmingham, AL, USA
| | | | - Abhishek Gangrade
- University of Alabama at Birmingham, Department of Radiation Oncology, Birmingham, AL, USA
| | - Ashwini A. Katre
- University of Alabama at Birmingham, Department of Radiation Oncology, Birmingham, AL, USA
| | - Chandrika Kurpad
- University of Alabama at Birmingham, Department of Radiation Oncology, Birmingham, AL, USA
| | - Yonghe Li
- Southern Research Institute, Department of Oncology, Birmingham, AL, USA
| | - Rajeev S. Samant
- University of Alabama at Birmingham, Department of Pathology, Division of Molecular & Cellular Pathology, Birmingham, AL, USA
| | - Pui-Kai Li
- Ohio State University, Department of Medicinal Chemistry and Pharmacognosy, Columbus, OH, USA
| | - Charles N. Landen
- University of Virginia, Department of Oncology, Division of Gynecologic Oncology, Charlottesville, VA, USA
| | - Eddy S. Yang
- University of Alabama at Birmingham, Department of Radiation Oncology, Birmingham, AL, USA
| | - Bertha Hidalgo
- University of Alabama at Birmingham, Department of Epidemiology, Birmingham, AL, USA
| | - Ronald D. Alvarez
- University of Alabama at Birmingham, Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Birmingham, AL, USA
| | - John Michael Straughn
- University of Alabama at Birmingham, Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Birmingham, AL, USA
| | - Andres Forero
- University of Alabama at Birmingham, Department of Medicine, Division of Hematology & Oncology, Birmingham, AL, USA
| | - Donald J. Buchsbaum
- University of Alabama at Birmingham, Department of Radiation Oncology, Birmingham, AL, USA
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83
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Huang L, Yang M, Yuan Y, Li X, Kuang E. Niclosamide inhibits lytic replication of Epstein-Barr virus by disrupting mTOR activation. Antiviral Res 2016; 138:68-78. [PMID: 27939840 DOI: 10.1016/j.antiviral.2016.12.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 11/30/2016] [Accepted: 12/05/2016] [Indexed: 12/31/2022]
Abstract
Infection with the oncogenic γ-herpesviruses Epstein-Barr virus (EBV) and Kaposi's sarcoma-associated herpesvirus (KSHV) cause several severe malignancies in humans. Inhibition of the lytic replication of EBV and KSHV eliminates the reservoir of persistent infection and transmission, consequently preventing the occurrence of diseases from the sources of infection. Antiviral drugs are limited in controlling these viral infectious diseases. Here, we demonstrate that niclosamide, an old anthelmintic drug, inhibits mTOR activation during EBV lytic replication. Consequently, niclosamide effectively suppresses EBV lytic gene expression, viral DNA lytic replication and virion production in EBV-infected lymphoma cells and epithelial cells. Niclosamide exhibits cytotoxicity toward lymphoma cells and induces irreversible cell cycle arrest in lytically EBV-infected cells. The ectopic overexpression of mTOR reverses the inhibition of niclosamide in EBV lytic replication. Similarly, niclosamide inhibits KSHV lytic replication. Thus, we conclude that niclosamide is a promising candidate for chemotherapy against the acute occurrence and transmission of infectious diseases of oncogenic γ-herpesviruses.
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Affiliation(s)
- Lu Huang
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Mengtian Yang
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Yan Yuan
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Xiaojuan Li
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China.
| | - Ersheng Kuang
- Institute of Human Virology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China; Key Laboratory of Tropical Disease Control (Sun Yat-Sen University), Ministry of Education, Guangzhou, China.
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84
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Xu M, Lee EM, Wen Z, Cheng Y, Huang WK, Qian X, Tcw J, Kouznetsova J, Ogden SC, Hammack C, Jacob F, Nguyen HN, Itkin M, Hanna C, Shinn P, Allen C, Michael SG, Simeonov A, Huang W, Christian KM, Goate A, Brennand KJ, Huang R, Xia M, Ming GL, Zheng W, Song H, Tang H. Identification of small-molecule inhibitors of Zika virus infection and induced neural cell death via a drug repurposing screen. Nat Med 2016; 22:1101-1107. [PMID: 27571349 PMCID: PMC5386783 DOI: 10.1038/nm.4184] [Citation(s) in RCA: 506] [Impact Index Per Article: 63.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 08/22/2016] [Indexed: 12/14/2022]
Abstract
In response to the current global health emergency posed by the Zika virus (ZIKV) outbreak and its link to microcephaly and other neurological conditions, we performed a drug repurposing screen of ∼6,000 compounds that included approved drugs, clinical trial drug candidates and pharmacologically active compounds; we identified compounds that either inhibit ZIKV infection or suppress infection-induced caspase-3 activity in different neural cells. A pan-caspase inhibitor, emricasan, inhibited ZIKV-induced increases in caspase-3 activity and protected human cortical neural progenitors in both monolayer and three-dimensional organoid cultures. Ten structurally unrelated inhibitors of cyclin-dependent kinases inhibited ZIKV replication. Niclosamide, a category B anthelmintic drug approved by the US Food and Drug Administration, also inhibited ZIKV replication. Finally, combination treatments using one compound from each category (neuroprotective and antiviral) further increased protection of human neural progenitors and astrocytes from ZIKV-induced cell death. Our results demonstrate the efficacy of this screening strategy and identify lead compounds for anti-ZIKV drug development.
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Affiliation(s)
- Miao Xu
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA
- Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Emily M Lee
- Department of Biological Science, Florida State University, Tallahassee, Florida, USA
| | - Zhexing Wen
- Department of Psychiatry and Behavioral Science, Emory University School of Medicine, Atlanta, Georgia, USA
- Department of Cell Biology, Emory University School of Medicine, Atlanta, Georgia, USA
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Yichen Cheng
- Department of Biological Science, Florida State University, Tallahassee, Florida, USA
| | - Wei-Kai Huang
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Xuyu Qian
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Biomedical Engineering Graduate Program, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Julia Tcw
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Jennifer Kouznetsova
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA
| | - Sarah C Ogden
- Department of Biological Science, Florida State University, Tallahassee, Florida, USA
| | - Christy Hammack
- Department of Biological Science, Florida State University, Tallahassee, Florida, USA
| | - Fadi Jacob
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ha Nam Nguyen
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Misha Itkin
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA
| | - Catherine Hanna
- Department of Biological Science, Florida State University, Tallahassee, Florida, USA
| | - Paul Shinn
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA
| | - Chase Allen
- Department of Biological Science, Florida State University, Tallahassee, Florida, USA
| | - Samuel G Michael
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA
| | - Anton Simeonov
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA
| | - Wenwei Huang
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA
| | - Kimberly M Christian
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Alison Goate
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Kristen J Brennand
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ruili Huang
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA
| | - Menghang Xia
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA
| | - Guo-Li Ming
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Biomedical Engineering Graduate Program, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- The Kavli Neuroscience Discovery Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Wei Zheng
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA
| | - Hongjun Song
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Biomedical Engineering Graduate Program, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- The Kavli Neuroscience Discovery Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Hengli Tang
- Department of Biological Science, Florida State University, Tallahassee, Florida, USA
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85
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Deng Y, Wang Z, Zhang F, Qiao M, Yan Z, Wei Q, Wang J, Liu H, Fan J, Zou Y, Liao J, Hu X, Chen L, Yu X, Haydon RC, Luu HH, Qi H, He TC, Zhang J. A Blockade of IGF Signaling Sensitizes Human Ovarian Cancer Cells to the Anthelmintic Niclosamide-Induced Anti-Proliferative and Anticancer Activities. Cell Physiol Biochem 2016; 39:871-88. [PMID: 27497986 DOI: 10.1159/000447797] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2016] [Indexed: 09/13/2023] Open
Abstract
BACKGROUND/AIMS Ovarian cancer is the most lethal gynecologic malignancy, and there is an unmet clinical need to develop new therapies. Although showing promising anticancer activity, Niclosamide may not be used as a monotherapy. We seek to investigate whether inhibiting IGF signaling potentiates Niclosamide's anticancer efficacy in human ovarian cancer cells. METHODS Cell proliferation and migration are assessed. Cell cycle progression and apoptosis are analyzed by flow cytometry. Inhibition of IGF signaling is accomplished by adenovirus-mediated expression of siRNAs targeting IGF-1R. Cancer-associated pathways are assessed using pathway-specific reporters. Subcutaneous xenograft model is used to determine anticancer activity. RESULTS We find that Niclosamide is highly effective on inhibiting cell proliferation, cell migration, and cell cycle progression, and inducing apoptosis in human ovarian cancer cells, possibly by targeting multiple signaling pathways involved in ELK1/SRF, AP-1, MYC/MAX and NFkB. Silencing IGF-1R exert a similar but weaker effect than that of Niclosamide's. However, silencing IGF-1R significantly sensitizes ovarian cancer cells to Niclosamide-induced anti-proliferative and anticancer activities both in vitro and in vivo. CONCLUSION Niclosamide as a repurposed anticancer agent may be more efficacious when combined with agents that target other signaling pathways such as IGF signaling in the treatment of human cancers including ovarian cancer.
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Affiliation(s)
- Youlin Deng
- Departments of Obstetrics and Gynecology, and Physical Examination, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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86
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Abstract
In Brazil, Biomphalaria glabrata, B. tenagophila, and B. straminea are naturally infected by the trematode Schistosoma mansoni, the causative agent of schistosomiasis. Despite decades of governmental efforts through official control programs, schistosomiasis remains an important public health problem in the country: thousands of people are infected with the trematode each year and millions live in endemic areas. The World Health Organization recommends using a combination of molluscicide (niclosamide) and mass chemotherapy to control the transmission of schistosomiasis, with this treatment successfully reducing the morbidity of the disease. In the past, niclosamide has been used in official schistosomiasis control programs in Brazil. However, as B. glabrata recolonizes even after molluscicide application, the use of molluscicides has gradually decreased in the country until they were discontinued in 2002, mainly due to the rising global pressure to preserve the environment and the difficulties of obtaining licenses from the Brazilian Ministry of Environment to use toxic substances in aquatic ecosystems. Therefore, the discovery of new molluscicides, which could be more selective to Biomphalaria species and less harmful to the aquatic ecosystem, is necessary. In addition, political efforts to sensitize funders to provide grants for this field of research are required. In this context, this article aims to make a critical analysis of molluscicide application in schistosomiasis control programs in Brazil.
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Affiliation(s)
- Pmz Coelho
- Research group of Schistosoma mansoni Biology and Its Interaction with the Host, René Rachou Institute, Oswaldo Cruz Foundation-Minas Gerais, 30190-002, Belo Horizonte, MG, Brazil
| | - R L Caldeira
- Research group of Medical Helminthology and Malacology, René Rachou Institute, Oswaldo Cruz Foundation-Minas Gerais, 30190-002, Belo Horizonte, MG, Brazil.
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87
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Sliwoski G, Schubert M, Stichel J, Weaver D, Beck-Sickinger AG, Meiler J. Discovery of Small-Molecule Modulators of the Human Y4 Receptor. PLoS One 2016; 11:e0157146. [PMID: 27294784 PMCID: PMC4905667 DOI: 10.1371/journal.pone.0157146] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Accepted: 05/25/2016] [Indexed: 12/11/2022] Open
Abstract
The human neuropeptide Y4 receptor (Y4R) and its native ligand, pancreatic polypeptide, are critically involved in the regulation of human metabolism by signaling satiety and regulating food intake, as well as increasing energy expenditure. Thus, this receptor represents a putative target for treatment of obesity. With respect to new approaches to treat complex metabolic disorders, especially in multi-receptor systems, small molecule allosteric modulators have been in the focus of research in the last years. However, no positive allosteric modulators or agonists of the Y4R have been described so far. In this study, small molecule compounds derived from the Niclosamide scaffold were identified by high-throughput screening to increase Y4R activity. Compounds were characterized for their potency and their effects at the human Y4R and as well as their selectivity towards Y1R, Y2R and Y5R. These compounds provide a structure-activity relationship profile around this common scaffold and lay the groundwork for hit-to-lead optimization and characterization of positive allosteric modulators of the Y4R.
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Affiliation(s)
- Gregory Sliwoski
- Faculty of Biosciences, Pharmacy and Psychology, Institute of Biochemistry, Leipzig University, Leipzig, Germany
- Center for Structural Biology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Mario Schubert
- Faculty of Biosciences, Pharmacy and Psychology, Institute of Biochemistry, Leipzig University, Leipzig, Germany
| | - Jan Stichel
- Faculty of Biosciences, Pharmacy and Psychology, Institute of Biochemistry, Leipzig University, Leipzig, Germany
| | - David Weaver
- Department of Pharmacology, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Annette G. Beck-Sickinger
- Faculty of Biosciences, Pharmacy and Psychology, Institute of Biochemistry, Leipzig University, Leipzig, Germany
- * E-mail: (JM); (ABS)
| | - Jens Meiler
- Center for Structural Biology, Department of Chemistry, Vanderbilt University, Nashville, Tennessee, United States of America
- * E-mail: (JM); (ABS)
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88
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Liu C, Armstrong C, Zhu Y, Lou W, Gao AC. Niclosamide enhances abiraterone treatment via inhibition of androgen receptor variants in castration resistant prostate cancer. Oncotarget 2016; 7:32210-20. [PMID: 27049719 PMCID: PMC5078008 DOI: 10.18632/oncotarget.8493] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 03/10/2016] [Indexed: 11/29/2022] Open
Abstract
Considerable evidence from both clinical and experimental studies suggests that androgen receptor variants, particularly androgen receptor variant 7 (AR-V7), are critical in the induction of resistance to enzalutamide and abiraterone. In this study, we investigated the role of AR-V7 in the cross-resistance of enzalutamide and abiraterone and examined if inhibition of AR-V7 can improve abiraterone treatment response. We found that enzalutamide-resistant cells are cross-resistant to abiraterone, and that AR-V7 confers resistance to abiraterone. Knock down of AR-V7 by siRNA in abiraterone resistant CWR22Rv1 and C4-2B MDVR cells restored their sensitivity to abiraterone, indicating that AR-V7 is involved in abiraterone resistance. Abiraterone resistant prostate cancer cells generated by chronic treatment with abiraterone showed enhanced AR-V7 protein expression. Niclosamide, an FDA-approved antihelminthic drug that has been previously identified as a potent inhibitor of AR-V7, re-sensitizes resistant cells to abiraterone treatment in vitro and in vivo. In summary, this preclinical study suggests that overexpression of AR-V7 contributes to resistance to abiraterone, and supports the development of combination of abiraterone with niclosamide as a potential treatment for advanced castration resistant prostate cancer.
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MESH Headings
- Androgen Antagonists/pharmacology
- Androstenes/pharmacology
- Animals
- Antineoplastic Combined Chemotherapy Protocols/pharmacology
- Benzamides
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Dose-Response Relationship, Drug
- Drug Resistance, Neoplasm/drug effects
- Drug Synergism
- Genetic Variation
- Humans
- Male
- Mice, SCID
- Niclosamide/pharmacology
- Nitriles
- Phenylthiohydantoin/analogs & derivatives
- Phenylthiohydantoin/pharmacology
- Prostatic Neoplasms, Castration-Resistant/drug therapy
- Prostatic Neoplasms, Castration-Resistant/genetics
- Prostatic Neoplasms, Castration-Resistant/metabolism
- Prostatic Neoplasms, Castration-Resistant/pathology
- RNA Interference
- Receptors, Androgen/drug effects
- Receptors, Androgen/genetics
- Receptors, Androgen/metabolism
- Time Factors
- Transfection
- Tumor Burden/drug effects
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Chengfei Liu
- Department of Urology, University of California Davis, CA, USA
| | | | - Yezi Zhu
- Department of Urology, University of California Davis, CA, USA
- Graduate Program in Pharmacology and Toxicology, University of California Davis, CA, USA
| | - Wei Lou
- Department of Urology, University of California Davis, CA, USA
| | - Allen C. Gao
- Department of Urology, University of California Davis, CA, USA
- Graduate Program in Pharmacology and Toxicology, University of California Davis, CA, USA
- UC Davis Comprehensive Cancer Center, University of California Davis, CA, USA
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89
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Olivier HM, Jenkins JA, Berhow M, Carter J. A Pilot Study Testing a Natural and a Synthetic Molluscicide for Controlling Invasive Apple Snails (Pomacea maculata). Bull Environ Contam Toxicol 2016; 96:289-294. [PMID: 26687501 DOI: 10.1007/s00128-015-1709-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 11/25/2015] [Indexed: 06/05/2023]
Abstract
Pomacea maculata (formerly P. insularum), an apple snail native to South America, was discovered in Louisiana in 2008. These snails strip vegetation, reproduce at tremendous rates, and have reduced rice production and caused ecosystem changes in Asia. In this pilot study snails were exposed to two molluscicides, a tea (Camellia sinensis) seed derivative (TSD) or niclosamide monohydrate (Pestanal(®), 2',5-dichloro-4'-nitrosalicylanilide, CAS #73360-56-2). Mortality was recorded after exposure to high or low concentrations (0.03 and 0.015 g/L for TSD, 1.3 and 0.13 mg/L for niclosamide). The TSD induced 100 % mortality at both concentrations. Niclosamide caused 100 % and 17 % mortality at high and low concentrations respectively. These molluscicides were also tested on potential biocontrol agents, the red swamp crayfish (Procambarus clarkii) and redear sunfish (Lepomis microlophus). No crayfish mortalities occurred at either concentration for either chemical, but sunfish experienced 100 % mortality with TSD (0.03 g/L), and 21 % mortality with niclosamide (0.13 mg/L).
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Affiliation(s)
- Heather M Olivier
- U.S. Geological Survey, Wetland and Aquatic Research Center, 700 Cajundome Boulevard, Lafayette, LA, 70506, USA.
| | - Jill A Jenkins
- U.S. Geological Survey, Wetland and Aquatic Research Center, 700 Cajundome Boulevard, Lafayette, LA, 70506, USA
| | - Mark Berhow
- U.S. Department of Agriculture, Agricultural Research Service, 1815 N. University Street, Peoria, IL, 61604, USA
| | - Jacoby Carter
- U.S. Geological Survey, Wetland and Aquatic Research Center, 700 Cajundome Boulevard, Lafayette, LA, 70506, USA
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90
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Abstract
Rice leaf blight, which is caused by the bacterial pathogen Xanthomonas oryzae pv. oryzae (Xoo), results in huge losses in grain yield. Here, we show that Xoo-induced rice leaf blight is effectively controlled by niclosamide, an oral antihelminthic drug and molluscicide, which also functions as an anti-tumor agent. Niclosamide directly inhibited the growth of the three Xoo strains PXO99, 10208 and K3a. Niclosamide moved long distances from the site of local application to distant rice tissues. Niclosamide also increased the levels of salicylate and induced the expression of defense-related genes such as OsPR1 and OsWRKY45, which suppressed Xoo-induced leaf wilting. Niclosamide had no detrimental effects on vegetative/reproductive growth and yield. These combined results indicate that niclosamide can be used to block bacterial leaf blight in rice with no negative side effects.
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Affiliation(s)
- Sung-Il Kim
- Department of Plant Science and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea
| | - Jong Tae Song
- School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea
| | - Jin-Yong Jeong
- Department of Convergence Medicine and Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Hak Soo Seo
- Department of Plant Science and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea
- Plant Genomics and Breeding Institute, Seoul National University, Seoul 151-921, Korea
- Bio-MAX Institute, Seoul National University, Seoul 151-818, Korea
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91
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Circu ML, Dykes SS, Carroll J, Kelly K, Galiano F, Greer A, Cardelli J, El-Osta H. A Novel High Content Imaging-Based Screen Identifies the Anti-Helminthic Niclosamide as an Inhibitor of Lysosome Anterograde Trafficking and Prostate Cancer Cell Invasion. PLoS One 2016; 11:e0146931. [PMID: 26784896 PMCID: PMC4718621 DOI: 10.1371/journal.pone.0146931] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 12/23/2015] [Indexed: 01/22/2023] Open
Abstract
Lysosome trafficking plays a significant role in tumor invasion, a key event for the development of metastasis. Previous studies from our laboratory have demonstrated that the anterograde (outward) movement of lysosomes to the cell surface in response to certain tumor microenvironment stimulus, such as hepatocyte growth factor (HGF) or acidic extracellular pH (pHe), increases cathepsin B secretion and tumor cell invasion. Anterograde lysosome trafficking depends on sodium-proton exchanger activity and can be reversed by blocking these ion pumps with Troglitazone or EIPA. Since these drugs cannot be advanced into the clinic due to toxicity, we have designed a high-content assay to discover drugs that block peripheral lysosome trafficking with the goal of identifying novel drugs that inhibit tumor cell invasion. An automated high-content imaging system (Cellomics) was used to measure the position of lysosomes relative to the nucleus. Among a total of 2210 repurposed and natural product drugs screened, 18 "hits" were identified. One of the compounds identified as an anterograde lysosome trafficking inhibitor was niclosamide, a marketed human anti-helminthic drug. Further studies revealed that niclosamide blocked acidic pHe, HGF, and epidermal growth factor (EGF)-induced anterograde lysosome redistribution, protease secretion, motility, and invasion of DU145 castrate resistant prostate cancer cells at clinically relevant concentrations. In an effort to identify the mechanism by which niclosamide prevented anterograde lysosome movement, we found that this drug exhibited no significant effect on the level of ATP, microtubules or actin filaments, and had minimal effect on the PI3K and MAPK pathways. Niclosamide collapsed intralysosomal pH without disruption of the lysosome membrane, while bafilomycin, an agent that impairs lysosome acidification, was also found to induce JLA in our model. Taken together, these data suggest that niclosamide promotes juxtanuclear lysosome aggregation (JLA) via modulation of pathways involved in lysosome acidification. In conclusion, we have designed a validated reproducible high-content assay to screen for drugs that inhibit lysosome trafficking and reduce tumor invasion and we summarize the action of one of these drugs.
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Affiliation(s)
- Magdalena L. Circu
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States of America
| | - Samantha S. Dykes
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States of America
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States of America
| | - Jennifer Carroll
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States of America
| | - Kinsey Kelly
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States of America
| | - Floyd Galiano
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States of America
| | - Adam Greer
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States of America
| | - James Cardelli
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States of America
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States of America
| | - Hazem El-Osta
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center, Shreveport, Louisiana, United States of America
- * E-mail:
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92
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Jiang DZ, Li HM. [Molluscicidal mechanism of combining use of extract of Glycyrrhiza uralensis and niclosamide]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2015; 27:608-611. [PMID: 27097479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate the molluscicidal mechanism of combining use of the extract of Glycyrrhiza uralensis (GE) and niclosamide (Nic). METHODS The Oncomelania hupensis snails were immersed in Nic, GE and GE+Nic solutions for 24 h and 48 h respectively, and then were put into fresh water to confirm their survival condition. The alive ones were dissected to obtain their livers. The effects of the drugs on the protein and glycogen of the liver of O. hupensis were observed, and the effects on contractile activity of vola pedis of the snails were studied by the experimental method of isolated smooth muscles of 0. hupensis. RESULTS GE had no obvious effects on the protein and glycogen in the liver of O. hupensis (all P > 0.05), but it could inhibit the contractions and decrease the contractile frequency of smooth muscles of vola pedis of O. hupensis (all P < 0.05). Nic could significantly decrease the levels of protein and glycogen in the liver of O. hupensis (all P < 0.05) , as well as enhance the contractions and contractile frequencies of smooth muscles of vola pedis of O. hupensis (P < 0.05). GE combined with Nic could further decrease the levels of protein and glycogen in the liver of O. hupensis (all P < 0.05), meanwhile, it could inhibit the contractions and decrease the contractile frequency of smooth muscles of vola pedis of O. hupensis (all P < 0.05). CONCLUSIONS The combining use of GE and Nic can accelerate the liver damage of O. hupensis, and also can inhibit the contractions of smooth muscles of vola pedis of O. hupensis which increases the contacting time of the drug, thus leads to the synergism of molluscicidal effect.
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93
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Liu C, Lou W, Armstrong C, Zhu Y, Evans CP, Gao AC. Niclosamide suppresses cell migration and invasion in enzalutamide resistant prostate cancer cells via Stat3-AR axis inhibition. Prostate 2015; 75:1341-53. [PMID: 25970160 PMCID: PMC4536195 DOI: 10.1002/pros.23015] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 04/16/2015] [Indexed: 12/17/2022]
Abstract
PURPOSE It is known that over expression of IL6 in prostate cancer cells confer enzalutamide resistance and that this may occur through constitutive Stat3 activation. Additionally, recent pre-clinical studies suggested enzalutamide might have the potential adverse effect of inducing metastasis of prostate cancer cells via Stat3 activation. This study is aimed to target Stat3 activation and improve enzalutamide therapy. EXPERIMENTAL DESIGN Sensitivity of prostate cancer cells to enzalutamide was tested using cell growth assays and clonogenic assays. Wound healing and invasion assays were performed to determine cell migration and invasion in vitro. Quantitative reverse transcription-PCR, ELISA and Western blotting were performed to detect expression levels of PSA, c-Myc, survivin, Stat3, and AR. ChIP assay was performed to examine recruitment of AR to the PSA promoter. RESULTS In the present study, we found niclosamide, a previously identified novel inhibitor of androgen receptor variant (AR-V7), inhibited Stat3 phosphorylation, and expression of downstream target genes. Niclosamide synergistically reversed enzalutamide resistance in prostate cancer cells and combination treatment of niclosamide with enzalutamide significantly induced cell apoptosis and inhibited cell growth, colony formation, cell migration and invasion. Knock down of Stat3 abrogated enzalutamide resistance resulting in reduced recruitment of AR to the PSA promoter in prostate cancer cells expressing IL6. Moreover, niclosamide reversed enzalutamide resistance by down-regulating Stat3 target gene expression Stat3and abrogating recruitment of AR to PSA promoter resulting in PSA inhibition. CONCLUSIONS This study demonstrated the IL6-Stat3-AR axis in prostate cancer is one of the crucial mechanisms of enzalutamide resistance. Niclosamide has the potential to target the IL6-Stat3-AR pathway to overcome enzalutamide resistance and inhibit migration and invasion in advanced prostate cancer.
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Affiliation(s)
- Chengfei Liu
- Department of Urology, University of California at Davis, Sacramento, CA, USA
| | - Wei Lou
- Department of Urology, University of California at Davis, Sacramento, CA, USA
| | - Cameron Armstrong
- Department of Urology, University of California at Davis, Sacramento, CA, USA
| | - Yezi Zhu
- Department of Urology, University of California at Davis, Sacramento, CA, USA
- Graduate Program in Pharmacology and Toxicology, University of California at Davis, Sacramento, CA, USA
| | - Christopher P Evans
- Department of Urology, University of California at Davis, Sacramento, CA, USA
- Comprehensive Cancer Center, University of California at Davis, Sacramento, CA, USA
| | - Allen C. Gao
- Department of Urology, University of California at Davis, Sacramento, CA, USA
- Graduate Program in Pharmacology and Toxicology, University of California at Davis, Sacramento, CA, USA
- Comprehensive Cancer Center, University of California at Davis, Sacramento, CA, USA
- To whom correspondence should be addressed: Department of Urology University of California Davis Medical Center 4645 2 Ave, Research III, Suite 1300 Sacramento, CA 95817
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94
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Zhang ZQ, Ma YC, Sun LP, Gao Y, Lu B, Wang FB, Zhang J, Chen Q, Hong QB, Wang W, Yang K, Liang YS, Dai JR. [Integration and demonstration of key techniques in the surveillance and forecast of schistosomiasis in Jiangsu Province II Molluscicidal effect of 5% niclosamide ethanolamine granules in large-scale settings]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2015; 27:343-352. [PMID: 26767253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To evaluate the field molluscicidal effect of 5% niclosamide ethanolamine granules, so as to provide a novel Oncomelania hupensis snail control approach for emergency treatment of high-risk settings. METHODS Snail control tests with spraying of 5% niclosamide ethanolamine granules were conducted in two settings of 2 counties, and the dose-, time- and setting-specific field molluscicidal effects were tested. RESULTS In the small-scale setting, spraying of 5% niclosamide ethanolamine granules at doses of 30, 40 and 50 g/m2 resulted in 54.55%, 68.41% and 73.45% 1-day snail mortality, 57.27%, 68.59% and 80.28% 3-day snail mortality, and 63.49%, 77.58% and 85.55% 7-day snail mortality, respectively, and no significant differences were detected in 1- and 3-day snail mortality caused by spraying of 5% niclosamide ethanolamine granules at doses of 30 and 40 g/m2 (all P > 0.05), while significant difference was found in the 7-day snail mortality (χ2 = 4.549, P < 0.05). In addition, spraying of 5% niclosamide ethanolamine granules at doses of 40 and 50 g/m2 resulted in comparable 1-, 3- and 7-day snail mortality (all P > 0.05). In the large-scale setting, spraying of 5% niclosamide ethanolamine granules at a dose of 40 g/m2 resulted in 85.29% and 87.70% 3-day snail mortality, 83.89% and 91.02% 7-day snail mortality, and 83.41% and 91.84% 15-day snail mortality in the environment-cleaning group and non-cleaning group, respectively. The overall snail mortality was 90.02% in the environment-cleaning group 3 to 15 days after spraying, which was significantly higher than that (84.28%) in the non-cleaning group (χ2 = 9.950, P < 0.05). After 15 days of spraying with 5% niclosamide ethanolamine granules at a dose of 40 g/m2, the densities of living snails reduced from 19.90 and 19.83 snails/0.1 m2 to 0.60 and 2.60 snails/0.1 m2 in the environment-cleaning group and non-cleaning group, with 96.98% and 86.89% reductions, respectively. CONCLUSION The appropriate dose of 5% niclosamide ethanolamine granules is 40 g/m2 for snail control in the field, and environment cleaning of vegetation with a height of more than 50 cm may improve the molluscicidal efficacy.
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95
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Rajamuthiah R, Fuchs BB, Conery AL, Kim W, Jayamani E, Kwon B, Ausubel FM, Mylonakis E. Repurposing salicylanilide anthelmintic drugs to combat drug resistant Staphylococcus aureus. PLoS One 2015; 10:e0124595. [PMID: 25897961 PMCID: PMC4405337 DOI: 10.1371/journal.pone.0124595] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 03/16/2015] [Indexed: 01/10/2023] Open
Abstract
Staphylococcus aureus is a Gram-positive bacterium that has become the leading cause of hospital acquired infections in the US. Repurposing Food and Drug Administration (FDA) approved drugs for antimicrobial therapy involves lower risks and costs compared to de novo development of novel antimicrobial agents. In this study, we examined the antimicrobial properties of two commercially available anthelmintic drugs. The FDA approved drug niclosamide and the veterinary drug oxyclozanide displayed strong in vivo and in vitro activity against methicillin resistant S. aureus (minimum inhibitory concentration (MIC): 0.125 and 0.5 μg/ml respectively; minimum effective concentration: ≤ 0.78 μg/ml for both drugs). The two drugs were also effective against another Gram-positive bacteria Enterococcus faecium (MIC 0.25 and 2 μg/ml respectively), but not against the Gram-negative species Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa and Enterobacter aerogenes. The in vitro antimicrobial activity of niclosamide and oxyclozanide were determined against methicillin, vancomycin, linezolid or daptomycin resistant S. aureus clinical isolates, with MICs at 0.0625-0.5 and 0.125-2 μg/ml for niclosamide and oxyclozanide respectively. A time-kill study demonstrated that niclosamide is bacteriostatic, whereas oxyclozanide is bactericidal. Interestingly, oxyclozanide permeabilized the bacterial membrane but neither of the anthelmintic drugs exhibited demonstrable toxicity to sheep erythrocytes. Oxyclozanide was non-toxic to HepG2 human liver carcinoma cells within the range of its in vitro MICs but niclosamide displayed toxicity even at low concentrations. These data show that the salicylanilide anthelmintic drugs niclosamide and oxyclozanide are suitable candidates for mechanism of action studies and further clinical evaluation for treatment of staphylococcal infections.
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Affiliation(s)
- Rajmohan Rajamuthiah
- Division of Infectious Diseases, Rhode Island Hospital, Alpert Medical School of Brown University, Providence, Rhode Island, United States of America
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Beth Burgwyn Fuchs
- Division of Infectious Diseases, Rhode Island Hospital, Alpert Medical School of Brown University, Providence, Rhode Island, United States of America
| | - Annie L. Conery
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Wooseong Kim
- Division of Infectious Diseases, Rhode Island Hospital, Alpert Medical School of Brown University, Providence, Rhode Island, United States of America
| | - Elamparithi Jayamani
- Division of Infectious Diseases, Rhode Island Hospital, Alpert Medical School of Brown University, Providence, Rhode Island, United States of America
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Bumsup Kwon
- Division of Neurology, Rhode Island Hospital, Alpert Medical School of Brown University, Providence, Rhode Island, United States of America
| | - Frederick M. Ausubel
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Eleftherios Mylonakis
- Division of Infectious Diseases, Rhode Island Hospital, Alpert Medical School of Brown University, Providence, Rhode Island, United States of America
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
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96
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Feng XG, Li BG, Li WB, Wu MS, Huang NB, Zhang Y, Xiong MT, Mu LX, Tian SH, Li P, Shen MF, Wang LF, Song J, Sun JY. [Molluscicidal effect of 5% powder of niclosamide ethanolamine salt granules (NEG) in field of mountainous areas in Yunnan Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2015; 27:129-133. [PMID: 26263772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To evaluate the molluscicidal effect of 5% powder of niclosamide ethanolamine salt granules (NEG) in the field of mountainous areas in Yunnan Province. METHODS The grasslands with Oncomelania hupensis snail habitats were chosen in Beideng Village, Heqing County, Yunnan Province, and were divided into 7 groups (groups of NEG 30 g/m2, NEG 40 g/m2, NEG 50 g/m2, NEG 40 g/m2 plus obstacle clearing, 50% niclosamide ethanolamine salt wettable powder (WPN) 6 g/m2, WPN 6 g/m2 plus obstacle clearing, and fresh water). The snail death rates and the densities of living snails were investigated and the results were compared in the different groups 7 d, 15 d, and 30 d after the implementation. RESULTS Seven d, 15 d, and 30 d after the implementation, the snail death rates of the groups of NEG 30 g/m2, 40 g/m2, and 50 g/m2 were from 72.75 % to 95.83%, and the average descent rates of living snail densities were from 72.26% to 95.54%. Seven d, 15 d, and 30 d after the implementation, in the NEG 40 g/m2 group, the snail death rates were from 81.69% to 87.19%, and the average descent rates of living snail densities were from 81.42% to 87.91% ; in the NEG 40 g/m2 plus obstacle clearing group, the snail death rates were from 84.89% to 88.24% and the average descent rates of living snail densities were from 85.63% ~ 88.22%; in the WPN 6 g/m2 group, the snail death rates were from 85.23% to 86.17% and the average descent rates of living snail densities were from 85.76% to 86.05%; in the WPN 6 g/m2 plus obstacle clearing group, the snail death rates were from 88.89% to 92.10% and the average descent rates of living snail densities were from 86.71% to 92.20%. The obstacle clearing improved the molluscicidal effect. CONCLUSION NEG has a good molluscicidal effect in the field of mountainous areas in Yunnan Province.
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97
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Xia J, Yuan Y, Xu X, Wei F, Li G, Liu M, Li J, Chen R, Zhou Z, Nie S. Evaluating the effect of a novel molluscicide in the endemic schistosomiasis japonica area of China. Int J Environ Res Public Health 2014; 11:10406-18. [PMID: 25310539 PMCID: PMC4210987 DOI: 10.3390/ijerph111010406] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 09/15/2014] [Accepted: 09/19/2014] [Indexed: 11/24/2022]
Abstract
Oncomelania hupensis is the sole intermediate host snail of Schistosoma japonicum in China. Snail control by molluscicide remains one of the most effective measures of schistosomiasis japonica control. A 50% wettable powder of niclosamide ethanolamine salt (WPN) is widely used for snail control in China. However, WPN is costly and toxic to fish. A novel molluscicide named LDS, the salt of quinoid-2', 5-dichloro-4'-nitrosalicylanilide from niclosamide, has been developed. To evaluate the effects of large-scale field application of LDS on field snail control, tests were conducted in 15 counties of Hubei Province, China. Active adult snails, were immersed in 0.2, 0.4, and 0.6 g/m3 of 10% LDS, 1.0 g/m3 of 50% WPN was used as the molluscicide control, and then the mortality rates of snails were investigated after 1, 2, and 3 days. In addition, four active concentrations of 10% LDS (0.4, 0.6, 0.8 and 1.0 g/m2) were applied by spraying and powdering in the field. 1.0 g/m2 of 50% WPN was used as the molluscicide control, and then the mortality rates of snails were observed after 1, 3, and 7 days. The results indicated that 0.4 g/m3 LDS applied by the immersion or 0.6 g/m2 LDS applied by spraying and powdering achieved the same molluscicidal effect as that of WPN, regardless of exposure time. By using different methods, the snail mortality rates in the molluscicide groups were related to exposure time and concentration, respectively. LDS costs less than WPN; thus, LDS is suitable and applicable for use as a molluscicide in schistosomiasis japonica epidemic areas.
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Affiliation(s)
- Jing Xia
- Department of Epidemiology and Health Statistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Yi Yuan
- Institute of Schistosomiasis Control, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China.
| | - Xingjian Xu
- Institute of Schistosomiasis Control, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China.
| | - Fenghua Wei
- Institute of Schistosomiasis Control, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China.
| | - Guiling Li
- Department of Chemistry and Chemical Industry, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Min Liu
- Department of Chemistry and Chemical Industry, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Jianqiang Li
- Sichuan Chemical Industry Research and Design Institute, Chengdu 610041, China.
| | - Rujuan Chen
- Sichuan Chemical Industry Research and Design Institute, Chengdu 610041, China.
| | - Zhengping Zhou
- Sichuan Chemical Industry Research and Design Institute, Chengdu 610041, China.
| | - Shaofa Nie
- Department of Epidemiology and Health Statistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Gitsu GA, Dudarev VG, Fridman IA, Sevbo DP, Trusov SN, Frolova AA, Mikhaĭlitsyn FS. [A novel bromine-containing salicylanilide (the compound MST-18). Preparation and antihymenolepic activity]. Med Parazitol (Mosk) 2014:30-31. [PMID: 25286548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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99
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Dudarev VG, Fridman IA, Sevbo DP, Trusov SN, Gitsu GA, Samochatova EI, Frolova AA, Mikhaĭlitsyn FS. [The preparation and antihymenolepic activity of a bromine-containing salicylanilide the compound MST-16)]. Med Parazitol (Mosk) 2014:31-32. [PMID: 25286549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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100
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Natarajan R, Singal V, Benes R, Gao J, Chan H, Chen H, Yu Y, Zhou J, Wu P. STAT3 modulation to enhance motor neuron differentiation in human neural stem cells. PLoS One 2014; 9:e100405. [PMID: 24945434 PMCID: PMC4063761 DOI: 10.1371/journal.pone.0100405] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 05/27/2014] [Indexed: 11/19/2022] Open
Abstract
Spinal cord injury or amyotrophic lateral sclerosis damages spinal motor neurons and forms a glial scar, which prevents neural regeneration. Signal transducer and activator of transcription 3 (STAT3) plays a critical role in astrogliogenesis and scar formation, and thus a fine modulation of STAT3 signaling may help to control the excessive gliogenic environment and enhance neural repair. The objective of this study was to determine the effect of STAT3 inhibition on human neural stem cells (hNSCs). In vitro hNSCs primed with fibroblast growth factor 2 (FGF2) exhibited a lower level of phosphorylated STAT3 than cells primed by epidermal growth factor (EGF), which correlated with a higher number of motor neurons differentiated from FGF2-primed hNSCs. Treatment with STAT3 inhibitors, Stattic and Niclosamide, enhanced motor neuron differentiation only in FGF2-primed hNSCs, as shown by increased homeobox gene Hb9 mRNA levels as well as HB9+ and microtubule-associated protein 2 (MAP2)+ co-labeled cells. The increased motor neuron differentiation was accompanied by a decrease in the number of glial fibrillary acidic protein (GFAP)-positive astrocytes. Interestingly, Stattic and Niclosamide did not affect the level of STAT3 phosphorylation; rather, they perturbed the nuclear translocation of phosphorylated STAT3. In summary, we demonstrate that FGF2 is required for motor neuron differentiation from hNSCs and that inhibition of STAT3 further increases motor neuron differentiation at the expense of astrogliogenesis. Our study thus suggests a potential benefit of targeting the STAT3 pathway for neurotrauma or neurodegenerative diseases.
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Affiliation(s)
- Rajalaxmi Natarajan
- Department of Neuroscience and Cell Biology, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Vinamrata Singal
- Department of Neuroscience and Cell Biology, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Richard Benes
- Department of Neuroscience and Cell Biology, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Junling Gao
- Department of Neuroscience and Cell Biology, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Hoi Chan
- Department of Neuroscience and Cell Biology, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Haijun Chen
- Department of Pharmacology & Toxicology, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Yongjia Yu
- Department of Radiation Oncology, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Jia Zhou
- Department of Pharmacology & Toxicology, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Ping Wu
- Department of Neuroscience and Cell Biology, The University of Texas Medical Branch, Galveston, Texas, United States of America
- * E-mail:
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