keyword
MENU ▼
Read by QxMD icon Read
search

Drug synergy

keyword
https://www.readbyqxmd.com/read/28101573/combining-doxorubicin-with-a-phenolic-extract-from-flaxseed-oil-evaluation-of-the-effect-on-two-breast-cancer-cell-lines
#1
Eliana Guerriero, Angela Sorice, Francesca Capone, Gabriella Storti, Giovanni Colonna, Gennaro Ciliberto, Susan Costantini
Breast cancer is one of the most frequently diagnosed forms of cancer and different treatments are used to block its progression. However, it still represents a very common cause of death in women. Doxorubicin (Dox) is reported as an effective agent in breast cancer treatment nonetheless it induces many side‑effects. For this reason, many laboratories are engaged in understanding how it is possible to decrease the drug concentration, considering that one of the possible solutions is to use drug synergy, combining it with natural substances...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28096961/polysaccharide-from-sepia-esculenta-ink-and-cisplatin-inhibit-synergistically-proliferation-and-metastasis-of-triple-negative-breast-cancer-mda-mb-231-cells
#2
Hua-Zhong Liu, Wei Xiao, Yi-Peng Gu, Ye-Xing Tao, Da-Yan Zhang, Hui Du, Jiang-Hua Shang
OBJECTIVES: This paper aims to investigate synergistic inhibition of polysaccharide from Sepia esculenta ink (SIP), a newly isolated marine polysaccharide in our laboratory, on breast cancer MDA-MB-231 cells exposed to cisplatin. MATERIALS AND METHODS: Cell viability of MDA-MB-231 cells was determined by CCK 8 assay. Median-effect concentration was analyzed using Chou-Talalay method that was also subjected to determine cell inhibition ratio and combined index, as well as interaction between SIP and cisplatin...
December 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28086831/evaluation-of-the-cytotoxicity-of-the-bithionol-cisplatin-combination-in-a-panel-of-human-ovarian-cancer-cell-lines
#3
Vijayalakshmi N Ayyagari, Tsung-Han Jeff Hsieh, Paula L Diaz-Sylvester, Laurent Brard
BACKGROUND: Combination drug therapy appears a promising approach to overcome drug resistance and reduce drug-related toxicities in ovarian cancer treatments. In this in vitro study, we evaluated the antitumor efficacy of cisplatin in combination with Bithionol (BT) against a panel of ovarian cancer cell lines with special focus on cisplatin-sensitive and cisplatin-resistant cell lines. The primary objectives of this study are to determine the nature of the interactions between BT and cisplatin and to understand the mechanism(s) of action of BT-cisplatin combination...
January 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28080217/synergistic-effects-of-tetrandrine-with-posaconazole-against-aspergillus-fumigatus
#4
Shui-Xiu Li, Yan-Jun Song, Ling Jiang, Ya-Jing Zhao, Hui Guo, Dong-Mei Li, Kun-Ju Zhu, Hong Zhang
In our earlier in vitro and in vivo studies, synergistic effects were observed when itraconazole or voriconazole were combined with tetrandrine (TET) against Aspergillus fumigatus, and the synergistic mechanism was related to inhibition of the drug efflux pump. Posaconazole (PCZ) is a broad-spectrum triazole antifungal agent used for the treatment of diverse fungal infections, including aspergillosis and candidiasis. Herein, the antifungal effects of TET are further investigated in vitro and in vivo alone or combined with PCZ against 20 clinical isolates of A...
January 12, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28079887/drp-1-is-required-for-bh3-mimetic-mediated-mitochondrial-fragmentation-and-apoptosis
#5
Mateus Milani, Dominic P Byrne, Georgia Greaves, Michael Butterworth, Gerald M Cohen, Patrick A Eyers, Shankar Varadarajan
The concept of using BH3 mimetics as anticancer agents has been substantiated by the efficacy of selective drugs, such as Navitoclax and Venetoclax, in treating BCL-2-dependent haematological malignancies. However, most solid tumours depend on MCL-1 for survival, which is highly amplified in multiple cancers and a major factor determining chemoresistance. Most MCL-1 inhibitors that have been generated so far, while demonstrating early promise in vitro, fail to exhibit specificity and potency in a cellular context...
January 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28079179/transcriptome-and-network-analyses-in-saccharomyces-cerevisiae-reveal-that-amphotericin-b-and-lactoferrin-synergy-disrupt-metal-homeostasis-and-stress-response
#6
Chi Nam Ignatius Pang, Yu-Wen Lai, Leona T Campbell, Sharon C-A Chen, Dee A Carter, Marc R Wilkins
Invasive fungal infections are difficult to treat. The few available antifungal drugs have problems with toxicity or efficacy, and resistance is increasing. To overcome these challenges, existing therapies may be enhanced by synergistic combination with another agent. Previously, we found amphotericin B (AMB) and the iron chelator, lactoferrin (LF), were synergistic against a range of different fungal pathogens. This study investigates the mechanism of AMB-LF synergy, using RNA-seq and network analyses. AMB treatment resulted in increased expression of genes involved in iron homeostasis and ATP synthesis...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28076361/synergy-and-order-effects-of-antibiotics-and-phages-in-killing-pseudomonas-aeruginosa-biofilms
#7
Waqas Nasir Chaudhry, Jeniffer Concepción-Acevedo, Taehyun Park, Saadia Andleeb, James J Bull, Bruce R Levin
In contrast to planktonic cells, bacteria imbedded biofilms are notoriously refractory to treatment by antibiotics or bacteriophage (phage) used alone. Given that the mechanisms of killing differ profoundly between drugs and phages, an obvious question is whether killing is improved by combining antibiotic and phage therapy. However, this question has only recently begun to be explored. Here, in vitro biofilm populations of Pseudomonas aeruginosa PA14 were treated singly and with combinations of two phages and bactericidal antibiotics of five classes...
2017: PloS One
https://www.readbyqxmd.com/read/28074051/anti-folates-potentiate-bactericidal-effects-of-other-antimicrobial-agents
#8
Kun Li, Xu-de Wang, Shan-Shan Yang, Jing Gu, Jiao-Yu Deng, Xian-En Zhang
Synergies between sulfonamides and other antimicrobial agents have long been reported, but the reason still remains unclear. Previously, Vilchèze et al. found that, sulfamethoxazole (SMX) could potentiate the bacterialcidal activity of isoniazid (INH) and rifampin (RIF) in Mycobacterium tuberculosis. To test if this was also the case in other bacteria, the ability to potentiate bactericidal effect of RIF by SMX was evaluated in Escherichia coli, Staphylococcus aureus, Salmonella typhimurium and Mycobacterium smegmatis...
January 11, 2017: Journal of Antibiotics
https://www.readbyqxmd.com/read/28069643/gepotidacin-gsk2140944-in-vitro-activity-against-neisseria-gonorrhoeae-mic-mbc-kill-kinetics-checkerboard-pae-sme-tests
#9
D J Farrell, H S Sader, P R Rhomberg, N E Scangarella-Oman, R K Flamm
Gepotidacin, (formerly GSK2140944) is a novel, first in class, triazaacenaphthylene antibacterial, which inhibits bacterial DNA gyrase and topoisomerase IV via a unique mechanism and has demonstrated in vitro activity against Neisseria gonorrhoeae, including drug-resistant strains, and also target pathogens associated with other conventional and biothreat infections. Broth microdilution was used to evaluate the minimum inhibitory/bactericidal concentration (MIC/MBC) activity of gepotidacin and comparators against 25 N...
January 9, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28062706/combinatorial-drug-screening-identifies-ewing-sarcoma-specific-sensitivities
#10
Branka Radic-Sarikas, Kalliopi P Tsafou, Kristina B Emdal, Theodore Papamarkou, Kilian V M Huber, Cornelia Mutz, Jeffrey A Toretsky, Keiryn L Bennett, Jesper V Olsen, Søren Brunak, Heinrich Kovar, Giulio Superti-Furga
Improvements in survival for Ewing sarcoma pediatric and adolescent patients have been modest over the past 20 years. Combinations of anticancer agents endure as an option to overcome resistance to single treatments caused by compensatory pathways. Moreover, combinations are thought to lessen any associated adverse side effects through reduced dosing, which is particularly important in childhood tumors. Using a parallel phenotypic combinatorial screening approach of cells derived from three pediatric tumor types, we identified Ewing sarcoma-specific interactions of a diverse set of targeted agents including approved drugs...
January 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28057421/preparation-and-biological-evaluation-of-ethionamide-mesoporous-silicon-nanoparticles-against-mycobacterium-tuberculosis
#11
Nuno Vale, Alexandra Correia, Sara Silva, Patrícia Figueiredo, Ermei Mäkilä, Jarno Salonen, Jouni Hirvonen, Jorge Pedrosa, Hélder A Santos, Alexandra Fraga
Ethionamide (ETH) is an important second-line antituberculosis drug used for the treatment of patients infected with multidrug-resistant Mycobacterium tuberculosis. Recently, we reported that the loading of ETH into thermally carbonized-porous silicon (TCPSi) nanoparticles enhanced the solubility and permeability of ETH at different pH-values and also increased its metabolization process. Based on these results, we synthesized carboxylic acid functionalized thermally hydrocarbonized porous silicon nanoparticles (UnTHCPSi NPs) conjugated with ETH and its antimicrobial effect was evaluated against Mycobacterium tuberculosis strain H37Rv...
December 26, 2016: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28052852/high-dose-ampicillin-sulbactam-combinations-combat-polymyxin-resistant-acinetobacter-baumannii-in-a-hollow-fiber-infection-model
#12
Justin R Lenhard, Nicholas M Smith, Zackery P Bulman, Xun Tao, Visanu Thamlikitkul, Beom S Shin, Roger L Nation, Jian Li, Jürgen B Bulitta, Brian T Tsuji
Acinetobacter baumannii are emerging with resistance to polymyxins. In 24h time-killing experiments, high dose ampicillin/sulbactam in combination with meropenem and polymyxin B achieved additivity or synergy against 10(8)CFU/mL of two clinical A. baumannii isolates resistant to all three drugs (max reductions 1.6 and 3.1 logs). In 14-day hollow-fiber infection models, high dose ampicillin/sulbactam (8/4g q8h) in combination with meropenem (2g q8h) and polymyxin B (1.43 mg/kg q12h with loading dose) achieved rapid eradication (96h)...
January 4, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28050817/phosphatidylcholine-coatings-deliver-local-antimicrobials-and-reduce-infection-in-a-murine-model-a-preliminary-study
#13
Michael A Harris, Karen E Beenken, Mark S Smeltzer, Warren O Haggard, J Amber Jennings
BACKGROUND: Phosphatidylcholine coatings have been shown to elute antibiotics for several days. A recently developed biofilm inhibitor, cis-2-decenoic acid (C2DA), has been shown to exhibit synergistic activity with several common antibiotics. This study aims to evaluate the effectiveness of C2DA and amikacin dual drug delivery from a phosphatidylcholine coating. QUESTIONS/PURPOSES: (1) What are the in vitro elution profiles of amikacin and C2DA from phosphatidylcholine-coated coupons in incubated phosphate-buffered saline? (2) Does the presence of C2DA in eluate samples lower the amount of amikacin needed for bacterial inhibition in overnight bacterial turbidity assays? (3) Does addition of amikacin and C2DA result in decreased colony-forming units (CFUs) on wire implants and bone when compared with phosphatidylcholine coatings alone in a mouse model of periprosthetic joint infection? METHODS: Effects of loading concentrations were assessed during 7-day in vitro elution studies for coatings containing all mixtures of 0%, 5%, 15%, and 25% wt of amikacin and C2DA (n = 4) through quantitative high-performance liquid chromatography concentration determination and plotting concentration eluted over time...
January 3, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28049192/combined-memantine-and-donepezil-treatment-improves-behavioral-and-psychological-symptoms-of-dementia-like-behaviors-in-olfactory-bulbectomized-mice
#14
Yasushi Yabuki, Kazuya Matsuo, Koga Hirano, Yasuharu Shinoda, Shigeki Moriguchi, Kohji Fukunaga
Memantine, an uncompetitive N-methyl-D-aspartate receptor antagonist, and the cholinesterase inhibitor, donepezil, are approved in most countries for treating moderate-to-severe Alzheimer's disease (AD). These drugs have different molecular targets; thus, it is expected that the effects of combined treatment would be synergistic. Some reports do show memantine/donepezil synergy in ameliorating cognition in AD model animals, but their combined effects on behavioral and psychological symptoms of dementia (BPSD)-like behaviors have not been addressed...
January 4, 2017: Pharmacology
https://www.readbyqxmd.com/read/28034365/in-vivo-antibacterial-and-wound-healing-activities-of-roman-chamomile-chamaemelum-nobile
#15
Hossein Kazemian, Sobhan Ghafourian, Nourkhoda Sadeghifard, Behzad Badakhsh, Hamid Heidari, Asieh Taji, Aref Shavalipour, Reza Mohebi, Hadi Sedigh Ebrahim-Saraie, Hamidreza Houri, Reza Houshmandfar
BACKGROUND: Today considerable number of drugs are produced from plants. Several plants with antibacterial and healing applications are used in medicine such as Roman chamomile (Chamaemelum nobile L.). Wound infection is one of the most prevalent infections among infectious disease around the world. Due to appearance of drug resistance, researchers are now paying attention to medicinal plants. Therefore, this study was designed to investigate the antimicrobial and wound healing properties of C...
December 30, 2016: Infectious Disorders Drug Targets
https://www.readbyqxmd.com/read/28007998/pathological-glutamatergic-neurotransmission-in-gilles-de-la-tourette-syndrome
#16
Ahmad Seif Kanaan, Sarah Gerasch, Isabel García-García, Leonie Lampe, André Pampel, Alfred Anwander, Jamie Near, Harald E Möller, Kirsten Müller-Vahl
Gilles de la Tourette syndrome is a hereditary, neuropsychiatric movement disorder with reported abnormalities in the neurotransmission of dopamine and γ-aminobutyric acid (GABA). Spatially focalized alterations in excitatory, inhibitory and modulatory neurochemical ratios within specific functional subdivisions of the basal ganglia, may lead to the expression of diverse motor and non-motor features as manifested in Gilles de la Tourette syndrome. Current treatment strategies are often unsatisfactory thus provoking the need for further elucidation of the underlying pathophysiology...
January 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28007199/coronary-artery-bypass-surgery-versus%C3%A2-drug-eluting-stent-implantation-for%C3%A2-left%C3%A2-main-or-multivessel-coronary-artery%C3%A2-disease-a-meta-analysis-of-individual-patient-data
#17
Cheol Whan Lee, Jung-Min Ahn, Rafael Cavalcante, Yohei Sotomi, Yoshinobu Onuma, Pannipa Suwannasom, Erhan Tenekecioglu, Sung-Cheol Yun, Duk-Woo Park, Soo-Jin Kang, Seung-Whan Lee, Young-Hak Kim, Seong-Wook Park, Patrick W Serruys, Seung-Jung Park
OBJECTIVES: The authors undertook a patient-level meta-analysis to compare long-term outcomes after coronary artery bypass grafting (CABG) versus percutaneous coronary intervention (PCI) with drug-eluting stents (DES) in 3,280 patients with left main or multivessel coronary artery disease (CAD). BACKGROUND: The relative efficacy and safety of CABG versus PCI with DES for left main or multivessel CAD remain controversial. METHODS: Data were pooled from the BEST (Randomized Comparison of Coronary Artery Bypass Surgery and Everolimus Eluting Stent Implantation in the Treatment of Patients With Multivessel Coronary Artery Disease), PRECOMBAT (Premier of Randomized Comparison of Bypass Surgery vs...
December 26, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27999204/mesothelin-targeted-immunotoxin-rg7787-has-synergistic-anti-tumor-activity-when-combined-with-taxanes
#18
Emily Kolyvas, Michael Rudloff, Marianne Poruchynsky, Rebekah Landsman, Kevin Hollevoet, David Venzon, Christine Alewine
Recombinant immunotoxins (RITs) are antibody-based therapeutics that carry a toxin payload. The RG7787 RIT targets the cancer antigen mesothelin to deliver a recombinantly-engineered, reduced immunogenicity variant of Pseudomonas exotoxin A (PE) to the cytosol where it inhibits protein synthesis. Here we demonstrate that maximal doses of RG7787 temporarily halt growth of pancreatic cancer tumor xenografts, similar to the approved drugs gemcitabine and nab-paclitaxel, however, combination of the RIT with nab-paclitaxel produces durable complete regressions in most mice...
December 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27993968/mechanisms-of-acquired-drug-resistance-to-the-hdac6-selective-inhibitor-ricolinostat-reveals-rational-drug-drug-combination-with-ibrutinib
#19
Jennifer E Amengual, Sathyen A Prabhu, Maximilian Lombardo, Kelly M Zullo, Paul M Johannet, Yulissa Gonzalez, Luigi Scotto, Xavier Jirau-Serrano, Ying Wei, Jimmy K Duong, Renu Nandakumar, Serge Cremers, Akanksha Verma, Olivier Elemento, Owen A O'Connor
PURPOSE: Pan-class I/II histone deacetylase (HDAC) inhibitors are effective treatments for select lymphomas. Isoform-selective HDAC inhibitors are emerging as potentially more targeted agents. ACY-1215 (ricolinostat) is a first in class selective HDAC6 inhibitor. To better understand the discrete function of HDAC6 and its role in lymphoma, we developed a lymphoma cell line resistant to ACY-1215. EXPERIMENTAL DESIGN: The diffuse large B-cell lymphoma cell line OCI-Ly10 was exposed to increasing concentrations of ACY-1215 over an extended period of time, leading to the development of a resistant cell line...
December 19, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27987753/sequel-of-mgo-nanoparticles-in-placl-nanofibers-for-anti-cancer-therapy-in-synergy-with-curcumin-%C3%AE-cyclodextrin
#20
Shruthi Vathaluru Sudakaran, Jayarama Reddy Venugopal, Gnaneshwar Puvala Vijayakumar, Sivasubramanian Abisegapriyan, Andrews Nirmala Grace, Seeram Ramakrishna
Pharmaceutical industries spend more money in developing new and efficient methods for delivering successful drugs for anticancer therapy. Electrospun nanofibers and nanoparticles loaded with drugs have versatile biomedical applications ranging from wound healing to anticancer therapy. We aimed to attempt for fabricating elastomeric poly (l-lactic acid-co-ε-caprolactone) (PLACL) with Aloe Vera (AV), magnesium oxide (MgO) nanoparticles, curcumin (CUR) and β-cyclodextrin (β-CD) composite nanofibers to control the growth of MCF-7 cells for breast cancer therapy...
February 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
keyword
keyword
90840
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"