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https://www.readbyqxmd.com/read/28515572/a-family-of-fe-n-c-oxygen-reduction-electrocatalysts-for-microbial-fuel-cell-mfc-application-relationships-between-surface-chemistry-and-performances
#1
Carlo Santoro, Alexey Serov, Rohan Gokhale, Santiago Rojas-Carbonell, Lydia Stariha, Jonathan Gordon, Kateryna Artyushkova, Plamen Atanassov
Different iron-based cathode catalysts have been studied for oxygen reduction reaction (ORR) in neutral media and then applied into microbial fuel cells (MFC). The catalysts have been synthesized using sacrificial support method (SSM) using eight different organic precursors named Niclosamide, Ricobendazole, Guanosine, Succinylsulfathiazole, Sulfacetamide, Quinine, Sulfadiazine and Pyrazinamide. Linear Sweep Voltammetry (LSV) curves were obtained for the catalysts using a O2 saturated in 0.1 M potassium phosphate buffer and 0...
May 15, 2017: Applied Catalysis. B, Environmental
https://www.readbyqxmd.com/read/28500234/niclosamide-and-bicalutamide-combination-treatment-overcomes-enzalutamide-and-bicalutamide-resistant-prostate-cancer
#2
Chengfei Liu, Cameron M Armstrong, Wei Lou, Alan P Lombard, Vito Cucchiara, Xinwei Gu, Joy C Yang, Nagalakshmi Nadiminty, Chong-Xian Pan, Christopher P Evans, Allen C Gao
Activation of the androgen receptor (AR) and its splice variants is linked to advanced prostate cancer and drives resistance to antiandrogens. The roles of AR and AR variants in the development of resistance to androgen deprivation therapy (ADT) and bicalutamide treatment, however, are still incompletely understood. To determine whether AR variants play a role in bicalutamide resistance, we developed bicalutamide resistant LNCaP cells (LNCaP-BicR) and found that these resistant cells express significantly increased levels of AR variants, particularly AR-V7, both at the mRNA and protein levels...
May 12, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28493830/ing5-knockdown-enhances-migration-and-invasion-of-lung-cancer-cells-by-inducing-emt-via-egfr-pi3k-akt-and-il-6-stat3-signaling-pathways
#3
Xin-Li Liu, Xu-Tao Zhang, Jin Meng, Hong-Fei Zhang, Yong Zhao, Chen Li, Yang Sun, Qi-Bing Mei, Feng Zhang, Tao Zhang
ING5 belongs to the Inhibitor of Growth (ING) candidate tumor suppressor family, whose functions have been involved in the regulation of chromatin remodeling, cell cycle progression, proliferation and apoptosis. Our previous study has shown that ING5 overexpression inhibits lung cancer aggressiveness via suppressing epithelial to mesenchymal transition (EMT). However, the mechanisms remain largely unknown. In the current study, by Phospho-Kinase array and western blot, we have defined significantly upregulated EGFR/PI3K/Akt and IL-6/STAT3 oncogenic signaling pathways in ING5 knockdown A549 cells, which could be downregulated by ING5 overexpression...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28471351/repurposing-niclosamide-as-a-versatile-antimicrobial-surface-coating-against-device-associated-hospital-acquired-bacterial-infections
#4
Tinotenda Gwisai, Nisha Hollingsworth, Sarah Cowles, Nagendran Tharmalingam, Eleftherios Mylonakis, Beth Fuchs, Anita Shukla
Device-associated and hospital-acquired infections remain amongst the greatest challenges in regenerative medicine. Furthermore, the rapid emergence of antibiotic resistance and lack of new classes of antibiotics has made the treatment of these bacterial infections increasingly difficult. The repurposing of Food and Drug Administration (FDA) approved drugs for antimicrobial therapies is a powerful means of reducing the time and cost associated with drug discovery and development. In this work, niclosamide, a commercially available anthelmintic drug with recently identified antimicrobial properties, was found to prevent and combat existing biofilms of several relevant gram-positive bacteria, namely strains of Staphylococcus aureus, including methicillin resistant S...
May 4, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28437447/carbonic-anhydrase-iii-car3-is-not-required-for-fatty-acid-synthesis-and-does-not-protect-against-high-fat-diet-induced-obesity-in-mice
#5
Sarah W Renner, Lauren M Walker, Lawrence J Forsberg, Jonathan Z Sexton, Jay E Brenman
Carbonic anhydrases are a family of enzymes that catalyze the reversible condensation of water and carbon dioxide to carbonic acid, which spontaneously dissociates to bicarbonate. Carbonic anhydrase III (Car3) is nutritionally regulated at both the mRNA and protein level. It is highly enriched in tissues that synthesize and/or store fat: liver, white adipose tissue, brown adipose tissue, and skeletal muscle. Previous characterization of Car3 knockout mice focused on mice fed standard diets, not high-fat diets that significantly alter the tissues that highly express Car3...
2017: PloS One
https://www.readbyqxmd.com/read/28418865/anti-helminthic-niclosamide-inhibits-ras-driven-oncogenic-transformation-via-activation-of-gsk-3
#6
Sung Yong Ahn, Ji Hye Yang, Nam Hee Kim, Kyungro Lee, Yong Hoon Cha, Jun Seop Yun, Hee Eun Kang, Yoonmi Lee, Jiwon Choi, Hyun Sil Kim, Jong In Yook
Despite the importance of Ras oncogenes as a therapeutic target in human cancer, their 'undruggable' tertiary structures limit the effectiveness of anti-Ras drugs. Canonical Wnt signaling contributes to Ras activity by glycogen synthase kinase 3 (GSK-3)-dependent phosphorylation at the C-terminus and subsequent degradation. In the accompanying report, we show that the anti-helminthic niclosamide directly binds to GSK-3 and inhibits Axin functions in colon cancer cells, with reversion of Snail-mediated epithelial-mesenchymal transition...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418862/niclosamide-is-a-potential-therapeutic-for-familial-adenomatosis-polyposis-by-disrupting-axin-gsk3-interaction
#7
Sung Yong Ahn, Nam Hee Kim, Kyungro Lee, Yong Hoon Cha, Ji Hye Yang, So Young Cha, Eunae Sandra Cho, Yoonmi Lee, Jeong Seok Cha, Hyun Soo Cho, Yoon Jeon, Young-Su Yuk, Suebean Cho, Kyoung Tai No, Hyun Sil Kim, Ho Lee, Jiwon Choi, Jong In Yook
The epithelial-mesenchymal transition (EMT) is implicated in tumorigenesis and cancer progression, and canonical Wnt signaling tightly controls Snail, a key transcriptional repressor of EMT. While the suppression of canonical Wnt signaling and EMT comprises an attractive therapeutic strategy, molecular targets for small molecules reverting Wnt and EMT have not been widely studied. Meanwhile, the anti-helminthic niclosamide has been identified as a potent inhibitor of many oncogenic signaling pathways although its molecular targets have not yet been clearly identified...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414284/-antineoplastic-mechanisms-of-niclosamide-loaded-nanoparticles-in-human-colorectal-cancer-cells
#8
A S Zhirnik, Y P Semochkina, E Yu Moskaleva, N I Krylov, I A Tubasheva, S L Kuznetsov, E A Vorontsov
Using poly(lactic-co-glycolic) acid we developed a polymeric form of niclosamide (PFN) and investigated molecular mechanisms underlying its antitumor activity against human colorectal cancer cell lines (SW837, Caco-2, COLO 320 HSR). PFN was shown to be more cytotoxic against cancer cells and less cytotoxic against normal cells (human embryonic lung fibroblasts) as compared to niclosamide. Both niclosamide and its polymeric form caused mitochondrial damage (evaluated as a decrease in rhodamine 123 accumulation) and increased the levels of reactive oxygen species, particularly mitochondrial superoxide, resulting in the oxidative damage to biomolecules...
March 2017: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
https://www.readbyqxmd.com/read/28389414/niclosamide-beyond-an-antihelminthic-drug
#9
REVIEW
Wei Chen, Robert A Mook, Richard T Premont, Jiangbo Wang
Niclosamide is an oral antihelminthic drug used to treat parasitic infections in millions of people worldwide. However recent studies have indicated that niclosamide may have broad clinical applications for the treatment of diseases other than those caused by parasites. These diseases and symptoms may include cancer, bacterial and viral infection, metabolic diseases such as Type II diabetes, NASH and NAFLD, artery constriction, endometriosis, neuropathic pain, rheumatoid arthritis, sclerodermatous graft-versus-host disease, and systemic sclerosis...
April 4, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28376661/succination-of-protein-disulfide-isomerase-links-mitochondrial-stress-and-endoplasmic-reticulum-stress-in-the-adipocyte-during-diabetes
#10
Allison M Manuel, Michael D Walla, Adam Faccenda, Stephanie L Martin, Ross M Tanis, Gerardo G Piroli, Julie Adam, Boris Kantor, Bulent Mutus, Danyelle M Townsend, Norma Frizzell
AIMS: Protein succination by fumarate increases in the adipose tissue of diabetic mice and in adipocytes matured in high glucose as a result of glucotoxicity-driven mitochondrial stress. The endoplasmic reticulum (ER) oxidoreductase protein disulfide isomerase (PDI) is succinated in adipocytes that are matured in high glucose, and in this study we investigated whether succination would alter PDI oxidoreductase activity, directly linking mitochondrial stress and ER stress. RESULTS: Protein succination and the ER stress marker C/EBP homologous protein (CHOP) were diminished after pharmaceutical targeting of mitochondrial stress with the chemical uncoupler niclosamide in adipocytes matured in high-glucose concentrations...
May 19, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28372221/dissipation-residues-and-risk-assessment-of-metaldehyde-and-niclosamide-ethanolamine-in-pakchoi-after-field-application
#11
Bizhang Dong, Xingjiao Shao, Hongfang Lin, Jiye Hu
A method using LC-MS/MS after QuEChERS preparation for the simultaneous determination of metaldehyde and niclosamide ethanolamine residues in soil and pakchoi has been developed and validated. The mean recoveries were ranged from 90% to 101% with RSDs (relative standard deviations) less than 9.2%. The dissipation results showed that the half-lives of metaldehyde and niclosamide ethanolamine were 2.3-4.3d and 1.7-9.5d, respectively. The terminal residue results indicated that the residues of metaldehyde in pakchoi were lower than the temporary maximum residue limits (MRL) set by China on 1 d after last treatment and the maximum residue of niclosamide ethanolamine in pakchoi was 0...
August 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28367059/niclosamide-inhibition-of-stat3-synergizes-with-erlotinib-in-human-colon-cancer
#12
Lingyi Shi, Hailun Zheng, Wanle Hu, Bin Zhou, Xuanxuan Dai, Yi Zhang, Zhiguo Liu, Xiaoping Wu, Chengguang Zhao, Guang Liang
Niclosamide, an anthelmintic drug approved by the US Food and Drug Administration against cestodes, is used to treat tapeworm infection. In this study, we show that niclosamide can potentially inhibit signal transducer and activator of transcription 3 (STAT3) in colon cancer cell lines. Combined inhibition of epidermal growth factor receptor and STAT3 by erlotinib and niclosamide synergistically induces apoptosis and antiproliferation in colon cancer cell lines. Our findings suggest that erlotinib and niclosamide combination provides an effective therapeutic approach to improving the prognosis of colon cancer...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28344555/drug-repurposing-of-the-anthelmintic-niclosamide-to-treat-multidrug-resistant-leukemia
#13
Sami Hamdoun, Philipp Jung, Thomas Efferth
Multidrug resistance, a major problem that leads to failure of anticancer chemotherapy, requires the development of new drugs. Repurposing of established drugs is a promising approach for overcoming this problem. An example of such drugs is niclosamide, a known anthelmintic that is now known to be cytotoxic and cytostatic against cancer cells. In this study, niclosamide showed varying activity against different cancer cell lines. It revealed better activity against hematological cancer cell lines CCRF-CEM, CEM/ADR5000, and RPMI-8226 compared to the solid tumor cell lines MDA-MB-231, A549, and HT-29...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28323036/targeting-androgen-receptor-versus-targeting-androgens-to-suppress-castration-resistant-prostate-cancer
#14
Changcheng Guo, Shuyuan Yeh, Yuanjie Niu, Gonghui Li, Junhua Zheng, Lei Li, Chawnshang Chang
Prostate cancer (PCa) is the 2nd leading cause of cancer-related death among men in the United States and its progression is tightly associated with the androgen/androgen receptor (AR) signals. Men castrated before puberty (eunuchs) or men with inherited deficiency of type II 5α-reductase (with failure to convert testosterone to the more potent dihydrotestosterone) (DHT) do not develop PCa. To date, androgen deprivation therapy (ADT) with anti-androgen treatments to reduce or prevent androgens from binding to the AR remains the main therapeutic option for advanced PCa since its discovery by Huggins and Hodges in 1941...
March 18, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28318631/the-antihelmenthic-phosphate-niclosamide-impedes-renal-fibrosis-by-inhibiting-homeodomain-interacting-protein-kinase-2-expression
#15
Xiaoyan Chang, Xin Zhen, Jixing Liu, Xiaomei Ren, Zheng Hu, Zhanmei Zhou, Fengxin Zhu, Ke Ding, Jing Nie
Renal fibrosis is the final common pathway of all varieties of progressive chronic kidney disease. However, there are no effective therapies to prevent or slow the progression of renal fibrosis. Niclosamide is a US Food and Drug Administration-approved oral antihelminthic drug used for treating most tapeworm infections. Here, we demonstrated that phosphate niclosamide, the water-soluble form of niclosamide, significantly reduced proteinuria, glomerulosclrotic lesions, and interstitial fibrosis in a murine model of adriamycin nephropathy...
March 16, 2017: Kidney International
https://www.readbyqxmd.com/read/28284560/computational-discovery-of-niclosamide-ethanolamine-a-repurposed-drug-candidate-that-reduces-growth-of-hepatocellular-carcinoma-cells-in%C3%A2-vitro-and-in-mice-by-inhibiting-cell-division-cycle-37-signaling
#16
Bin Chen, Wei Wei, Li Ma, Bin Yang, Ryan M Gill, Mei-Sze Chua, Atul J Butte, Samuel So
BACKGROUND & AIMS: Drug repositioning offers a shorter approval process than new drug development. We therefore searched large public datasets of drug-induced gene expression signatures to identify agents that might be effective against hepatocellular carcinoma (HCC). METHODS: We searched public databases of messenger RNA expression patterns reported from HCC specimens from patients, HCC cell lines, and cells exposed to various drugs. We identified drugs that might specifically increase expression of genes that are down-regulated in HCCs and reduce expression of genes up-regulated in HCCs using a nonparametric, rank-based pattern-matching strategy based on the Kolmogorov-Smirnov statistic...
March 8, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28271456/niclosamide-as-an-anti-obesity-drug-an-experimental-study
#17
Ali I Al-Gareeb, Khalid D Aljubory, Hayder M Alkuraishy
BACKGROUND: Niclosamide is a well-known anthelminthic drug that exert its effects at least in part through induction of mitochondrial uncoupling. The cycling of mitochondrial proton plays an essential role in regulation of basal metabolic rate, so modulation of mitochondrial uncoupling may be helpful approach to fight obesity. OBJECTIVE: To assess the anti-obesity effects of niclosamide on mice with induced obesity. MATERIALS AND METHODS: Thirty male Albino mice, 8-10 weeks old, were divided randomly and equally in to three groups; Group 1 fed with standard diet, whereas both Groups 2 and 3 were fed with high fat diet (HFD)...
March 7, 2017: Eating and Weight Disorders: EWD
https://www.readbyqxmd.com/read/28235454/corrigendum-to-niclosamide-inhibits-lytic-replication-of-epstein-barr-virus-by-disrupting-mtor-activation-antivir-res-138-2017-68-78
#18
Lu Huang, Mengtian Yang, Yan Yuan, Xiaojuan Li, Ersheng Kuang
No abstract text is available yet for this article.
April 2017: Antiviral Research
https://www.readbyqxmd.com/read/28137584/anthelminthic-drug-niclosamide-sensitizes-the-responsiveness-of-cervical-cancer-cells-to-paclitaxel-via-oxidative-stress-mediated-mtor-inhibition
#19
Liping Chen, Li Wang, Haibin Shen, Hui Lin, Dan Li
Drug repurposing represents an alternative therapeutic strategy to cancer treatment. The potent anti-cancer activities of a FDA-approved anthelminthic drug niclosamide have been demonstrated in various cancers. However, whether niclosamide is active against cervical cancer is unknown. In this study, we investigated the effects of niclosamide alone and its combination with paclitaxel in cervical cancer in vitro and in vivo. We found that niclosamide significantly inhibited proliferation and induced apoptosis of a panel of cervical cancer cell lines, regardless of their cellular origin and genetic pattern...
January 27, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28081501/isolation-characterization-using-lc-esi-qtof-nmr-and-in-vitro-cytotoxicity-assay-of-niclosamide-forced-degradation-products
#20
Johnsirani P, Vishnuvardhan Ch, Lingesh A, Naidu V G M, Naveen Ch, Satheeshkumar N
The present study describes the isolation, characterization and in vitro cytotoxic effect of all forced degradation products of niclosamide (NCM) an anthelmintic class of drug used specifically to treat tapeworms. NCM was subjected to forced degradation involving hydrolysis (acidic, alkaline and neutral), oxidative, photolysis and thermal stress, as per ICH (Q1A (R2)) suggested conditions. The drug under hydrolytic (acidic and basic) conditions showed extensive degradation, while it was stable under neutral hydrolytic, oxidative, photolytic and thermal stress conditions...
March 20, 2017: Journal of Pharmaceutical and Biomedical Analysis
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