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https://www.readbyqxmd.com/read/28927025/repurposing-itraconazole-for-the-treatment-of-cancer
#1
Rachel Pounds, Sarah Leonard, Christopher Dawson, Sean Kehoe
The repurposing of drugs is becoming increasingly attractive as it avoids the lengthy process and cost implications associated with bringing a novel drug to market. Itraconazole is a broad-spectrum anti-fungal agent. An emerging body of in vivo, in vitro and clinical evidence have confirmed that it also possesses antineoplastic activities and has a synergistic action when combined with other chemotherapeutic agents. It acts via several mechanisms to prevent tumour growth, including inhibition of the Hedgehog pathway, prevention of angiogenesis, decreased endothelial cell proliferation, cell cycle arrest and induction of auto-phagocytosis...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28922497/mutual-independence-of-alkaline-and-calcium-mediated-signalling-in-aspergillus-fumigatus-refutes-the-existence-of-a-conserved-druggable-signalling-nexus
#2
Omar Loss, Margherita Bertuzzi, Yu Yan, Natalie Fedorova, Bethany L McCann, Darius Armstrong-James, Eduardo A Espeso, Nick D Read, William C Nierman, Elaine M Bignell
Functional coupling of calcium- and alkaline responsive signalling occurs in multiple fungi to afford efficient cation homeostasis. Host microenvironments exert alkaline stress and potentially toxic concentrations of Ca(2+) , such that highly conserved regulators of both calcium- (Crz) and pH- (PacC/Rim) responsive signalling are crucial for fungal pathogenicity. Drugs targeting calcineurin are potent antifungal agents but also perturb human immunity thereby negating their use as anti-infectives, abrogation of alkaline signalling has therefore been postulated as an adjunctive antifungal strategy...
September 18, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28876209/soil-microbiomes-associated-with-verticillium-wilt-suppressive-broccoli-and-chitin-amendments-are-enriched-with-potential-biocontrol-agents
#3
Patrik Inderbitzin, Judson Ward, Alexandra Barbella, Natalie Solares, Dmitriy Izyumin, Prabir Burman, Dan Chellemi, Krishna V Subbarao
Two naturally infested Verticillium wilt conducive soils from the Salinas Valley of coastal California were amended with disease-suppressive broccoli residue and/or crab meal amendments, and changes to the soil prokaryote community were monitored using Illumina sequencing of a 16S rRNA gene library generated from 160 bulk soil samples. The experiment was run in a greenhouse twice with eggplant as the Verticillium wilt susceptible host. Disease suppression, plant height, soil microsclerotia density and soil chitinase activity were assessed at the conclusion of each experiment...
September 6, 2017: Phytopathology
https://www.readbyqxmd.com/read/28838343/in-vitro-evaluation-of-cytotoxic-anti-proliferative-anti-oxidant-apoptotic-and-anti-microbial-activities-of-cladonia-pocillum
#4
M Ersoz, Z M Coskun, B Acikgoz, I Karalti, G Cobanoglu, C Cesal
The aim of this study was to investigate the anti-proliferative, apoptotic, cytotoxic, and anti-oxidant effects of extracts from the lichen Cladonia pocillumon human breast cancer cells (MCF-7), and to characterize the anti-microbial features.  MCF-7 cells were treated with methanolic C. pocillum extract for 24h. The cytotoxicity of the extract was tested with MTT. Moreover, its anti-proliferative effects were examined with immunocytochemical method. Apoptosis and biochemical parameters were detected in MCF-7...
August 15, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28800974/advances-in-the-synthesis-molecular-architectures-and-potential-applications-of-gemini-surfactants
#5
REVIEW
Renu Sharma, Ajar Kamal, Maryam Abdinejad, Rakesh Kumar Mahajan, Heinz-Bernhard Kraatz
Gemini surfactants have been the subject of intensive scrutiny by virtue of their unique combination of physical and chemical properties and being used in ordinary household objects to multifarious industrial processes. In this review, we summarize the recent developments of gemini surfactants, highlighting the classification of gemini surfactants based on the variation in headgroup polarity, flexibility/rigidity of spacer, hydrophobic alkyl chain and counterion along with potential applications of gemini surfactants, depicting the truly remarkable journey of gemini surfactants that has just come of age...
July 29, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28793837/further-investigation-of-equine-fescue-oedema-induced-by-mediterranean-tall-fescue-lolium-arundinaceum-infected-with-selected-fungal-endophytes-epichloe%C3%A2-coenophiala
#6
S C Finch, J S Munday, B L Sutherland, J B Vlaming, L R Fletcher
AIMS: To determine if equine fescue oedema (EFO) induced by grazing Mediterranean-type tall fescue (Lolium arundinaceum) infected with selected endophytes (Epichloë coenophiala) could be prevented by treatment with the corticosteroid, methylprednisolone, and anti-histamine, cetirizine, and to determine concentrations of lolines, specifically N-acetyl norloline (NANL), in grasses grazed by horses that did and did not develop EFO. METHODS: Four horses were grazed on AR542-infected Mediterranean tall fescue pasture (from Day 0) for 7 days prior to being subjected to euthanasia...
August 23, 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/28766374/biotechnological-production-and-practical-application-of-l-asparaginase-enzyme
#7
Archana Vimal, Awanish Kumar
L-asparaginase is a vital enzyme of medical importance, and renowned as a chemotherapeutic agent. The relevance of this enzyme is not only limited as an anti-cancer agent, it also possesses a wide range of medical application. The application includes the antimicrobial property, treatment of infectious diseases, autoimmune diseases, canine and feline cancer. Apart from the health care industry, its significance is also established in the food sector as a food processing agent to reduce the acrylamide concentration...
August 2, 2017: Biotechnology & Genetic Engineering Reviews
https://www.readbyqxmd.com/read/28765651/cd14-is-critical-for-tlr2-mediated-m1-macrophage-activation-triggered-by-n-glycan-recognition
#8
Thiago Aparecido da Silva, André L V Zorzetto-Fernandes, Nerry T Cecílio, Aline Sardinha-Silva, Fabrício Freitas Fernandes, Maria Cristina Roque-Barreira
Agonist interaction with Toll-like receptors (TLRs) induces T cell-mediated immunity, which is effective against intracellular pathogens. Consequently, TLR agonists are being tried as immunomodulatory agents. The lectin ArtinM targets TLR2 N-glycans on macrophages, induces cytokines production, and promotes T helper-1 immunity, a process that culminates in resistance to several parasitic and fungal infections in vivo. Because co-receptors influence agonist binding to TLRs, we investigated whether CD14 is required for macrophage activation induced by ArtinM...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28746729/pleurotus-sajor-caju-can-be-used-to-synthesize-silver-nanoparticles-with-anti-fungal-activity-against-candida-albicans
#9
Siti Fadhilah Musa, Ting Seng Yeat, Laina Zarisa Mohd Kamal, Yasser M Tabana, Mowaffaq Adam Ahmed, Ahmad El Ouweini, Lim Vuangao, Lee Chee Keong, Doblin Sandai
BACKGROUND: Green synthesis of silver nanoparticles (AgNPs) has become widely practiced worldwide. In this study, AgNPs were synthesized using a hot-water extract of the edible mushroom, Pleurotus sajor-caju. The product, PSC-AgNPs, was characterized by using UV-Vis spectra, DLS analysis, TEM, XRD and FTIR spectrometry. To assess its antifungal activity against C. albicans, gene transcription and protein expression analyses were conducted for CaICL1 and its product, ICL using RT-qPCR and western blot, respectively...
July 26, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28744261/antifungal-potential-of-copper-ii-manganese-ii-and-silver-i-1-10-phenanthroline-chelates-against-multidrug-resistant-fungal-species-forming-the-candida-haemulonii-complex-impact-on-the-planktonic-and-biofilm-lifestyles
#10
Rafael M Gandra, Pauraic Mc Carron, Mariana F Fernandes, Lívia S Ramos, Thaís P Mello, Ana Carolina Aor, Marta H Branquinha, Malachy McCann, Michael Devereux, André L S Santos
Candida haemulonii, Candida haemulonii var. vulnera and Candida duobushaemulonii, which form the C. haemulonii complex, are emerging etiologic agents of fungal infections known to be resistant to the most commonly used antifungals. The well-established anti-Candida potential of metal complexes containing 1,10-phenanthroline (phen) ligands encouraged us to evaluate different copper(II), manganese(II), and silver(I) phen chelates for their ability to inhibit planktonic growth and biofilm of C. haemulonii species complex...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28742342/the-structure-of-thymidylate-kinase-from-candida-albicans-reveals-a-unique-structural-element
#11
Kaustubh Sinha, Gordon S Rule
The structure of thymidylate kinase from Candida albicans, determined by X-ray crystallography, is reported to a resolution of 2.45 Å with a final Rfree of 0.223. Thymidylate kinase from C. albicans possesses a unique 15-residue loop that is not seen in thymidylate kinases from other genera. The structure reported here reveals that the conformation of this loop is constrained by both intra- and intersubunit hydrogen bonding, and a number of key residues in this loop are conserved among different Candida species that are medically important...
August 22, 2017: Biochemistry
https://www.readbyqxmd.com/read/28685194/biological-activity-of-lipopeptides-from-bacillus
#12
REVIEW
Haobin Zhao, Dongyan Shao, Chunmei Jiang, Junling Shi, Qi Li, Qingsheng Huang, Muhammad Shahid Riaz Rajoka, Hui Yang, Mingliang Jin
The lipopeptides of Bacillus are small metabolites that contain a cyclic structure formed by 7-10 amino acids (including 2-4 D-amino acids) and a beta-hydroxy fatty acid with 13-19 C atoms. These lipopeptides exhibit a variety of biological activities, including interactions with biofilms, and anti-fungal, anti-inflammatory, anti-tumor, anti-virus, and anti-platelet properties. The multiple activities of lipopeptides have stimulated significant interest in the exploitation of these lipopeptides for use as antibiotics, feed additives, anti-tumor agents, urgent thrombolytic therapeutic agents, and drug delivery systems...
July 6, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28676673/formulation-and-candidacidal-activity-of-magnetic-nanoparticles-coated-with-cathelicidin-ll-37-and-ceragenin-csa-13
#13
Katarzyna Niemirowicz, Bonita Durnaś, Grażyna Tokajuk, Ewelina Piktel, Grzegorz Michalak, Xiaobo Gu, Alina Kułakowska, Paul B Savage, Robert Bucki
Fungal infections caused by Candida spp. represent an emerging problem during treatment of immunocompromised patients and those hospitalized with serious principal diseases. The ever-growing number of fungal strains exhibiting drug resistance necessitates the development of novel antimicrobial therapies including those based on membrane-permeabilizing agents and nanomaterials as drug carriers. In this study, the fungicidal activities of LL-37 peptide, ceragenin CSA-13 and its magnetic derivatives (MNP@LL-37, MNP@CSA-13) against laboratory and clinical strains of C...
July 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28659880/alkyl-protocatechuate-loaded-nanostructured-lipid-systems-as-a-treatment-strategy-for-paracoccidioides-brasiliensis-and-paracoccidioides-lutzii-in-vitro
#14
Kaila P Medina-Alarcón, Junya L Singulani, Aline R Voltan, Janaina C O Sardi, Maicon S Petrônio, Mariana B Santos, Carlos R Polaquini, Luis O Regasini, Vanderlan S Bolzani, Dulce H S da Silva, Marlus Chorilli, Maria J S Mendes-Giannini, Ana M Fusco-Almeida
Dodecyl protocatechuate (dodecyl) is a derivative of protocatechuic acid (3,4-dihydroxybenzoic acid) that possesses anti-oxidant and antifungal properties. Nanostructured lipid systems (NLS) can potentiate the action of many antifungal agents, reducing the required dose and side effects by improving their activity. This work aimed to evaluate dodecyl protocatechuate loaded into a NLS (NLS+dodecyl) as a strategy for the treatment of Paracoccidioides brasiliensis and P. lutzii in vitro. Antifungal activity against P...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28655659/fungal-chitosan-and-lycium-barbarum-extract-as-anti-listeria-and-quality-preservatives-in-minced-catfish
#15
Mohammed S Alsaggaf, Shaaban H Moussa, Nihal M Elguindy, Ahmed A Tayel
Listeria monocytogenes is a foodborne bacterial pathogen that causes serious health risks. Chitosan (Ch) is a bioactive polymer that could be effectively applied for foodstuffs biopreservation. Lycium barbarum (Goji berry) is ethnopharmaceutical fruit that have diverse health protecting benefits. Chitosan was produced from A. niger and employed with L. barbarum extract (LBE) as blends for Listeria control and quality biopreservation of African catfish mince (Clarias gariepinus). Chitosan could utterly control L...
November 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28644565/long-term-risk-of-infection-in-patients-with-crohn-s-disease-on-anti-tnf-treatment-a-prospective-single-center-cohort-study-in-china
#16
Yue Li, Hui Jun Shu, Hong Lu, Hong Yang, Ji Li, Bei Tan, Jia Ming Qian
OBJECTIVE: The aim of this study was to explore the long-term risk of infection in patients with Crohn's disease (CD) on infliximab (IFX) therapy. METHODS: All CD patients treated with IFX were recruited from January 2008 to December 2015. Their characteristics and infectious events during IFX therapy were prospectively collected, and the risk of infection was evaluated using Cox regression. RESULTS: Seventy CD patients receiving IFX were consecutively recruited...
July 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28637533/everybody-needs-sphingolipids-right-mining-for-new-drug-targets-in-protozoan-sphingolipid-biosynthesis
#17
John G M Mina, P W Denny
Sphingolipids (SLs) are an integral part of all eukaryotic cellular membranes. In addition, they have indispensable functions as signalling molecules controlling a myriad of cellular events. Disruption of either the de novo synthesis or the degradation pathways has been shown to have detrimental effects. The earlier identification of selective inhibitors of fungal SL biosynthesis promised potent broad-spectrum anti-fungal agents, which later encouraged testing some of those agents against protozoan parasites...
June 22, 2017: Parasitology
https://www.readbyqxmd.com/read/28608807/amphotericin-b-an-anti-fungal-medication-directly-increases-the-cytotoxicity-of-nk-cells
#18
Nayoung Kim, Ji-Wan Choi, Hye-Ran Park, Inki Kim, Hun Sik Kim
Immunomodulatory drugs (IMiDs) present one example of immunomodulatory agents that improve cancer immunotherapy. Based on the cytotoxic activity of natural killer (NK) cells against cancer cells, a high throughput screening method for the identification of novel immunomodulatory molecules with the potential to stimulate NK cell cytotoxicity against cancer cells was designed and tested using an approved drug library. Among the primary hit compounds, the anti-fungal drug amphotericin B (AMP-B) increased the cytotoxicity of NK cell line and human primary NK cells in a direct manner...
June 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28602386/respiratory-infections-associated-with-anti-tnf%C3%AE-agents
#19
REVIEW
E Blanchard, M-E Truchetet, I Machelart, J Séneschal, C Raherison-Semjen
Anti-TNFα agents have proved effective in the treatment of various inflammatory, rheumatologic, dermatologic, and gastrointestinal diseases. Severe respiratory tract infections of bacterial or fungal origin have emerged as important complications in patients receiving such treatments. The risk of infection due to anti-TNFα therapy is difficult to assess in these patients who are immunocompromised because of the underlying disease itself and of previous or concomitant immunosuppressive drugs. This excessive infection risk seems real, particularly in the first six months following treatment initiation, and higher for patients receiving anti-TNFα monoclonal antibodies than for those receiving soluble TNFα receptor...
June 8, 2017: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/28601633/leptomycin-b-attenuates-neuronal-death-via-pka-and-pp2b-mediated-erk1-2-activation-in-the-rat-hippocampus-following-status-epilepticus
#20
Su-Ji Min, Hye-Won Hyun, Tae-Cheon Kang
Leptomycin B (LMB), originally developed as an anti-fungal agent, has potent neuroprotective properties against status epilepticus (SE, a prolonged seizure activity). However, the pharmacological profiles and mechanisms of LMB for neuroprotection remain elusive. In the present study, we found that LMB increased phosphorylation levels of protein kinase A (PKA) catalytic subunits, protein phosphatase 2B (PP2B, calcineurin) and extracellular signal-regulated kinase 1/2 (ERK1/2) under normal condition, and abolished SE-induced neuronal death...
June 7, 2017: Brain Research
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