keyword
MENU ▼
Read by QxMD icon Read
search

Drug synergy

keyword
https://www.readbyqxmd.com/read/29331774/the-synergy-of-vitamin-c-with-decitabine-activates-tet2-in-leukemic-cells-and-significantly-improves-overall-survival-in-elderly-patients-with-acute-myeloid-leukemia
#1
Huihui Zhao, Huayuan Zhu, Jiayu Huang, Yu Zhu, Ming Hong, Han Zhu, Jingjing Zhang, Shan Li, Lijia Yang, Yun Lian, Shuai Wang, Jianping Mao, Yaoyu Chen, Jianyong Li, Sixuan Qian
BACKGROUND: Decitabine is widely used in the treatment of acute myeloid leukemia (AML) in elderly patients. Low-dose Vitamin C has also been indicated to induce DNA demethylation at the cellular level. However, little is known whether low-dose Vitamin C has a synergistic effect with decitabine in clinic. METHODS: The effect of combined low-dose Vitamin C and decitabine on cell proliferation, the cell cycle, apoptosis and the expression level and activity of TET2 was investigated in HL60 and NB4 human leukemic cells...
January 2, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29331763/inhibition-of-isoprenylcysteine-carboxylmethyltransferase-sensitizes-common-chemotherapies-in-cervical-cancer-via-ras-dependent-pathway
#2
Qin Pan, Rong Liu, Hasina Banu, Liang Ma, Hui Li
Isoprenylcysteine carboxylmethyltransferase (Icmt) catalyzes the last step of post-translational protein prenylation, which is essential for the stability and proper functions of many oncogenic proteins, such as Ras. Despite extensive studies on the roles of Icmt in tumor transformation and progression, little is known on the involvement ofIcmt in the development of tumor resistance to chemotherapy. Here we show the upregulation of Icmt as a persistent response to chemotherapy in cervical cancer cells. In-depth functional analysis demonstrated that Icmt inhibition significantly inhibited growth, induced apoptosis and augmented the inhibitory effects of chemotherapy drugs in cervical cancer in cell culture system and xenograft mouse model...
January 10, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29321678/systems-pharmacology-analysis-of-synergy-of-tcm-an-example-using-saffron-formula
#3
Jianling Liu, Jingjing Liu, Fengxia Shen, Zonghui Qin, Meng Jiang, Jinglin Zhu, Zhenzhong Wang, Jun Zhou, Yingxue Fu, Xuetong Chen, Chao Huang, Wei Xiao, Chunli Zheng, Yonghua Wang
Traditional Chinese medicine (TCM) follows the principle of formulae, in which the pharmacological activity of a single herb can be enhanced or potentiated by addition of other herbs. Nevertheless, the involved synergy mechanisms in formulae remain unknown. Here, a systems-based method is proposed and applied to three representative Chinese medicines in compound saffron formula (CSF): two animal spices (Moschus, Beaver Castoreum), and one herb Crocus sativus which exert synergistic effects for cardiovascular diseases (CVDs)...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29317432/in-silico-evaluation-of-pharmacokinetic-optimization-for-antimitogram-based-clinical-trials
#4
Skerdi Haviari, Benoît You, Michel Tod
Antimitograms are prototype in vitro tests for evaluating chemotherapeutic efficacy using patient-derived primary cancer cells. These tests might help optimize treatment from a pharmacodynamic (PD) standpoint by guiding treatment selection. However, they are technically challenging and require refinements and trials to demonstrate benefit in order to be widely used. In this study, we performed simulations aimed at exploring how to validate antimitograms and how to complement them by pharmacokinetic (PK) optimization...
January 9, 2018: Cancer Research
https://www.readbyqxmd.com/read/29313067/combinatorial-effects-of-histone-deacetylase-inhibitors-hdaci-vorinostat-and-entinostat-and-adaphostin-are-characterized-by-distinct-redox-alterations
#5
Nilsa Rivera-Del Valle, Tiewei Cheng, Mary E Irwin, Hayley Donnella, Melissa M Singh, Joya Chandra
PURPOSE: Amongst the epigenetically targeted therapies, targeting of the histone deacetylases (HDACs) has yielded numerous drugs for clinical use in hematological malignancies, but none as yet for acute lymphocytic leukemia (ALL). Single agent activity of HDAC inhibitors (HDACi) has been elusive in ALL, and has prompted study of combinatorial strategies. Because several HDACi raise levels of intracellular oxidative stress, we evaluated combinations of two structurally distinct HDACi with the redox active compound adaphostin in ALL...
January 8, 2018: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29311287/comparison-of-a-simple-angiographic-approach-with-a-synergy-between-percutaneous-coronary-intervention-with-taxus-and-cardiac-surgery-score-based-approach-for-left-main-coronary-artery-stenting-a-pooled-analysis-of-serial-precombat-premier-of-randomized-comparison
#6
Pil Hyung Lee, Jong-Young Lee, Cheol Whan Lee, Seon-Ok Kim, Jung-Min Ahn, Duk-Woo Park, Soo-Jin Kang, Seung-Whan Lee, Young-Hak Kim, Seong-Wook Park, Seung-Jung Park
BACKGROUND: The applicability of Synergy Between Percutaneous Coronary Intervention With Taxus and Cardiac Surgery scores to left main coronary artery disease (CAD) has been questioned. A simplified alternative is needed for guiding decision making. METHODS AND RESULTS: We evaluated the prognostic value of a simplified angiographic classification in comparison with a Synergy Between Percutaneous Coronary Intervention With Taxus and Cardiac Surgery score-based approach for patients with left main CAD undergoing drug-eluting stent implantation...
January 2018: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29305985/mechanistic-studies-of-the-antibiofilm-activity-and-synergy-with-antibiotics-of-isosorbide-mononitrate
#7
Sayeed Hasan, Yassamin N S Albayaty, Benjamin Thierry, Clive A Prestidge, Nicky Thomas
The use of nitric oxide (NO), a naturally occurring antimicrobial agent, as an alternative strategy to combat bacterial biofilms has recently gained considerable momentum in light of the global threat of emerging antibiotic resistance. While previous NO-based anti-biofilm approaches were aimed at killing bacteria cells within biofilms, NO has also been recently identified as a key mediator of biofilm dispersal, causing the release of cells from the biofilm community. This is of great interest towards the design of more effective anti-biofilm strategies but further studies are warranted to validate this concept...
January 3, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29297700/breast-cancer-cell-apoptosis-is-synergistically-induced-by-curcumin-trastuzumab-and-glutathione-peroxidase-1-but-robustly-inhibited-by-glial-cell-line-derived-neurotrophic-factor
#8
M Gardaneh, S Shojaei, A Rahimi Shamabadi, P Akbari
We hypothesized that synergy between curcumin (CURC), trastuzumab (TZMB), and glutathione peroxidase-1 (GPX-1) accelerates breast cancer (BC) cell apoptosis which is inhibited by glial cell line-derived neurotrophic factor (GDNF). We measured survival of BC cell lines treated or cotreated with CURC and TZMB, and then with GDNF, before measuring expression levels of growth and apoptosis genes. These experiments were also repeated on SKBR3 cells transiently expressing GPX-1. CURC+TZMB cotreatment induced BC cell apoptosis more significantly than single treatment...
January 3, 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29296273/new-delhi-metallo-%C3%AE-lactamase-1-producing-klebsiella-pneumoniae-isolates-in-hospitalized-patients-in-kashan-iran
#9
Farzaneh Firoozeh, Zeinab Mahluji, Ehsaneh Shams, Ahmad Khorshidi, Mohammad Zibaei
Background and Objectives: New Delhi metallo-ß-lactamase (NDM) is a newly emerging metallo-ß-lactamases, which can destroy all β-lactams including carbapenems. Therefore, this study aimed at evaluating New Delhi metallo-ß-lactamase-1-production in clinical isolates of Klebsiella pneumoniae in Kashan, Iran. Materials and Methods: In a cross-sectional study, 181 K. pneumoniae isolates were collected from clinical samples of patients, who referred to Shahid Beheshi hospital in Kashan during November 2013 and October 2014...
October 2017: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29295691/molecular-detection-of-tem-shv-and-ctx-m-genes-among-gram-negative-klebsiella-isolates
#10
Asma Naim, Asma Saeed, Taqdees Ara Malik
In the past few years, the use of antimicrobial drugs against a wide range of pathogens has increased significantly. This extensive use of drugs has increased the resistance rate in microbial community widely. Molecular techniques for the detection of resistance are more reliable as compared to the conventional phenotypic method. The family Enterobacteriaceae is considered to be an important cause of nosocomial infections due to its predominantly active species such as E. coli, Klebsiella and Pseudomonas. These organisms are mainly involved in causing pneumonia, sepsis, post-surgical and urinary tract infections...
January 1, 2018: Current Drug Delivery
https://www.readbyqxmd.com/read/29295497/saffron-an-old-medicinal-plant-and-a-potential-novel-functional-food
#11
REVIEW
María José Bagur, Gonzalo Luis Alonso Salinas, Antonia M Jiménez-Monreal, Soukaina Chaouqi, Silvia Llorens, Magdalena Martínez-Tomé, Gonzalo L Alonso
The spice saffron is made from the dried stigmas of the plant Crocus sativus L. The main use of saffron is in cooking, due to its ability to impart colour, flavour and aroma to foods and beverages. However, from time immemorial it has also been considered a medicinal plant because it possesses therapeutic properties, as illustrated in paintings found on the island of Santorini, dated 1627 BC. It is included in Catalogues of Medicinal Plants and in the European Pharmacopoeias, being part of a great number of compounded formulas from the 16th to the 20th centuries...
December 23, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29285948/translation-of-combination-nanodrugs-into-nanomedicines-lessons-learned-and-future-outlook
#12
Qingxin Mu, Jesse Yu, Lisa A McConnachie, John C Kraft, Yu Gao, Gaurav K Gulati, Rodney J Y Ho
The concept of nanomedicine is not new. For instance, some nanocrystals and colloidal drug molecules are marketed that improve pharmacokinetic characteristics of single-agent therapeutics. For the past two decades, the number of research publications on single-agent nanoformulations has grown exponentially. However, formulations advancing to preclinical and clinical evaluations that lead to therapeutic products has been limited. Chronic diseases such as cancer and HIV/AIDS require drug combinations, not single agents, for durable therapeutic responses...
December 29, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/29285209/combination-of-il-2-rapamycin-dna-methyltransferase-and-histone-deacetylase-inhibitors-for-the-expansion-of-human-regulatory-t-cells
#13
Makoto Miyara, Driss Chader, Aude Burlion, Jérémie Goldstein, Delphine Sterlin, Françoise Norol, Hélène Trebeden-Nègre, Laetitia Claër, Shimon Sakaguchi, Gilles Marodon, Zahir Amoura, Guy Gorochov
FOXP3+ regulatory T cell (Treg) based cellular therapies represent promising therapeutic options in autoimmunity, allergy, transplantation and prevention of Graft Versus Host (GVH) Disease. Among human FOXP3-expressing CD4+T cells, only the CD45RA+ naïve Treg (nTreg) subset is suitable for in vitro expansion. However, FoxP3 expression decays in cells using currently described culture protocols. Rapamycin alone was not able to prevent FOXP3 loss in nTregs cells, as only a half of them maintained FOXP3 expression after 14 days of culture...
December 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/29283581/ratio-dependent-synergism-of-a-doxorubicin-and-olaparib-combination-in-2d-and-spheroid-models-of-ovarian-cancer
#14
Sina Eetezadi, James C Evans, Yen Ting Shen, Raquel De Souza, Micheline Piquette-Miller, Christine Allen
Ovarian cancer is the fourth leading cause of death in women in developed countries. Even though patients with the most lethal form of the disease (HGSOC; high grade serous ovarian cancer) respond well to initial treatment, they often relapse with progressively resistant disease. Inhibitors of the poly(ADP-ribose) polymerase (PARP) enzymes are a relatively new class of molecularly targeted small molecule drugs that show promise in overcoming resistance. The present study explores the combination of a DNA damaging agent, doxorubicin (DOX), with the PARP inhibitor, olaparib (OLP) in order to achieve optimal synergy of both drugs in serous ovarian cancer...
December 28, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29282879/a-modularly-designable-vesicle-for-sequentially-multiple-loading
#15
Yiyang Zhang, Dandan Bao, Shuo Wang, Yuancheng Dong, Fen Wu, Haitao Li, Dongsheng Liu
The vesicle is one of the most intriguing platforms for drug delivery, which is believed to improve drug efficacy. In the past few decades, a great deal of materials have been explored to make vesicles, including lipids, block copolymers, dendrons, erythrocyte membranes, and even DNA. Other than shape and size control, most efforts are focused on achieving certain functions, for example, an abundance of stimuli-responsive features are introduced to vesicles, which can be applied to controllable release, such as pH, redox, light, radiation, enzyme etc...
December 28, 2017: Small
https://www.readbyqxmd.com/read/29279590/distribution-of-adeb-and-ndm-1-genes-in-multidrug-resistant-acinetobacter-baumannii-isolated-from-infected-wound-of-patients-admitted-in-a-tertiary-care-hospital-in-bangladesh
#16
M J Hasan, S M Shamsuzzaman
BACKGROUND: The adeB gene in Acinetobacter baumannii regulates the bacterial internal drug efflux pump that plays a significant role in drug resistance. The aim of our study was to determine the occurrence of adeB gene in multidrug resistant and New Delhi metallo-beta-lactamase-1 (NDM- 1) gene in imipenem resistant Acinetobacter baumannii isolated from wound swab samples in a tertiary care hospital of Bangladesh. METHODS: A total of 345 wound swab samples were tested for bacterial pathogens...
December 2017: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/29259014/er-stress-signaling-promotes-the-survival-of-cancer-persister-cells-tolerant-to-egfr-tyrosine-kinase-inhibitors
#17
Hideki Terai, Shunsuke Kitajima, Danielle S Potter, Yusuke Matsui, Laura Gutierrez Quiceno, Ting Chen, Tae-Jung Kim, Maria Rusan, Tran C Thai, Federica Piccioni, Katherine A Donovan, Nicholas Kwiatkowski, Kunihiko Hinohara, Guo Wei, Nathanael S Gray, Eric S Fischer, Kwok-Kin Wong, Teppei Shimamura, Anthony Letai, Peter S Hammerman, David A Barbie
An increasingly recognized component of resistance to tyrosine kinase inhibitors (TKI) involves persistence of a drug-tolerant subpopulation of cancer cells which survive despite effective eradication of the majority of the cell population. Multiple groups have demonstrated that these drug-tolerant persister cells undergo transcriptional adaptation via an epigenetic state change that promotes cell survival. Because this mode of TKI drug tolerance appears to involve transcriptional addiction to specific genes and pathways, we hypothesized that systematic functional screening of EGFR TKI/transcriptional inhibitor combination therapy would yield important mechanistic insights and alternative drug escape pathways...
December 19, 2017: Cancer Research
https://www.readbyqxmd.com/read/29245013/combination-cancer-therapy-can-confer-benefit-via-patient-to-patient-variability-without-drug-additivity-or-synergy
#18
Adam C Palmer, Peter K Sorger
Combination cancer therapies aim to improve the probability and magnitude of therapeutic responses and reduce the likelihood of acquired resistance in an individual patient. However, drugs are tested in clinical trials on genetically diverse patient populations. We show here that patient-to-patient variability and independent drug action are sufficient to explain the superiority of many FDA-approved drug combinations in the absence of drug synergy or additivity. This is also true for combinations tested in patient-derived tumor xenografts...
December 14, 2017: Cell
https://www.readbyqxmd.com/read/29234363/shenfu-injection-adjunct-with-platinum-based-chemotherapy-for-the-treatment-of-advanced-non-small-cell-lung-cancer-a-meta-analysis-and-systematic-review
#19
REVIEW
Ailing Cao, Hailang He, Mengxin Jing, Beibei Yu, Xianmei Zhou
Platinum-based chemotherapy is one of the standard treatments for non-small-cell lung cancer (NSCLC), while its high toxicity and limited clinical effects raise big concerns. Shenfu injection (SFI) has been commonly used as an adjutant chemotherapy drug for NSCLC in China. We ascertained the beneficial and adverse effects of SFI in combination with platinum-based chemotherapy for advanced NSCLC by using meta-analysis methods. The randomized controlled trials (RCTs) involving advanced NSCLC treatment with SFI plus platinum-based chemotherapy versus chemotherapy alone were searched on 6 medical databases up to February 2017...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29230203/ibalizumab-targeting-cd4-receptors-an-emerging-molecule-in-hiv-therapy
#20
REVIEW
Simona A Iacob, Diana G Iacob
The HIV infection is responsible for the most devastating global pandemic of the last century. More than 39 million people have died of HIV/AIDS since 1981. The development of the antiretroviral (ARV) treatment begins with the discovery of zidovudine a nucleoside reverse transcriptase inhibitor. This breakthrough was followed by other ARV drug classes and representatives. Presently, HIV treatment employs 27 ARV representatives belonging to five different classes. Despite the proven benefits of ARV treatment and its long-term control of the HIV infection, there is an increasing concern about the numerous adverse effects and resistance to current ARV drugs...
2017: Frontiers in Microbiology
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"