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https://www.readbyqxmd.com/read/28732161/an-elegant-ph-responsive-nanovehicle-for-drug-delivery-based-on-triazine-dendrimer-modified-magnetic-nanoparticles
#1
Amir Landarani-Isfahani, Majid Moghadam, Shima Mohammadi, Maryam Royvaran, Naimeh Moshtael-Arani, Saghar Rezaei, Shahram Tangestaninejad, Valiollah Mirkhani, Iraj Mohammadpoor-Baltork
Owing to properties of magnetic nanoparticles and elegant three-dimensional macromolecule architectural features, dendrimeric structures have been investigated as nanoscale drug delivery systems. In this paper, a novel magnetic nanocarrier, generation two (G2) triazine dendrimer modified Fe3O4@SiO2 magnetic nanoparticles (MNP-G2), was designed, fabricated and characterized by Fourier transform infrared (FT-IR), thermal gravimetric analysis (TGA), vibrating sample magnetometer (VSM), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and dynamic light scattering (DLS)...
July 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28729623/3d-qsar-studies-on-maslinic-acid-analogs-for-anticancer-activity-against-breast-cancer-cell-line-mcf-7
#2
Sarfaraz Alam, Feroz Khan
Global prevalence of breast cancer and its rising frequency makes it a key area of research in drug discovery programs. The research article describes the development of field based 3D-QSAR model based on human breast cancer cell line MCF7 in vitro anticancer activity, which defines the molecular level understanding and regions of structure-activity relationship for triterpene maslinic acid and its analogs. The key features such as average shape, hydrophobic regions and electrostatic patterns of active compounds were mined and mapped to virtually screen potential analogs...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724427/curcumin-the-spicy-modulator-of-breast-carcinogenesis
#3
REVIEW
Urmila Banik, Subramani Parasuraman, Arun Kumar Adhikary, Nor Hayati Othman
Worldwide breast cancer is the most common cancer in women. For many years clinicians and the researchers are examining and exploring various therapeutic modalities for breast cancer. Yet the disease has remained unconquered and the quest for cure is still going on. Present-day strategy of breast cancer therapy and prevention is either combination of a number of drugs or a drug that modulates multiple targets. In this regard natural products are now becoming significant options. Curcumin exemplifies a promising natural anticancer agent for this purpose...
July 19, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28724033/ethical-issues-on-the-synthetic-phosphoethanolamine-clinical-trial
#4
Francisco José Roma Paumgartten
Notwithstanding its approval by the National Committee for Ethics in Research (Conep) on April 19, 2016, a trial of the so-called "synthetic" phosphoethanolamine (syn-phospho) pill in cancer patients raises ethical concerns. An analysis by a laboratory contracted by the Ministry of Science, Technology and Innovation (MCTI) revealed that syn-phospho contained a great amount of impurities and did not meet standards of pharmaceutical quality required for an investigational drug. Cytotoxicity against human tumor cell lines and in vivo rodent xenograft tumor assays consistently failed to demonstrate a potential anticancer activity of syn-phospho...
May 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28714500/exploring-the-immunomodulatory-and-anticancer-properties-of-zerumbone
#5
REVIEW
Md Areeful Haque, Ibrahim Jantan, Laiba Arshad, Syed Nasir Abbas Bukhari
Plant-derived immunomodulators and anti-cancer agents have attracted a lot of interest from natural product scientists for their efficacy and safety and their significant contribution towards understanding targeted drug action and drug delivery mechanisms. Zerumbone, the main constituent of Zingiber zerumbet rhizomes, has been investigated for its wide-spectrum role in treating multitargeted diseases. The rhizomes have been used as food flavoring agents in various cuisines and in herbal medicine. Many in vivo and in vitro studies have provided evidence of zerumbone as a potent immunomodulator as well as a potential anti-cancer agent...
July 17, 2017: Food & Function
https://www.readbyqxmd.com/read/28714403/gsk3-inhibitors-in-the-therapeutic-development-of-diabetes-cancer-and-neurodegeneration-past-present-and-future
#6
Mudasir Maqbool, Nasimul Hoda
GSK3 has gained a considerable attention of researchers in the late 1970s as an inevitable drug target to treat diabetes. Furthermore, it was found to have a key role in the development of diseases like cancer and neurodegeneration (ND). A broad spectrum of GSK3 inhibitors have been discovered from time to time in order to curb these diseases. Inhibition of GSK3 by insulin boosts the dephosphorylation of glycogen synthase, hence its activation to convert UDP glucose into glycogen. Lack of insulin and insulin-resistance is supposed to be the cause of type 2 diabetes (Diabetes mellitus)...
July 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28709614/generation-of-recombinant-protein-shells-of-johnson-grass-chlorotic-stripe-mosaic-virus-in-tobacco-plants-and-their-use-as-drug-carrier
#7
E Alemzadeh, K Izadpanah, F Ahmadi
The development and use of virus-like particles (VLPs) is a growing field with a powerful potential in generation of nanoparticles. In the present study we have attempted to generate and use empty shells of Johnson grass chlorotic stripe mosaic virus (JgCSMV, a member of the genus Aureusvirus, family Tombusviridae) as VLP nanoparticles for drug loading. In order to successfully produce recombinant JgCSMV-derived VLPs, we followed an approach based on cloning of the JgCSMV CP gene into pBI121 vectorand introduction of the latter into Agrobacterium rhizogenes and transformation of tobacco cells for coat protein expression...
July 11, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28707589/advances-in-the-anticancer-value-of-the-ursolic-acid-through-nanodelivery
#8
Azadeh Manayi, Marjan Nikan, Navid Nobakht Haghighid, Mohammad Abdollahi
Ursolic acid, a natural pentacyclic triterpenoid is commonly found in plants and foods with promising biological and pharmacological activities. The compound has been under the attention of researchers due to its considerable anticancer effects through suppression of differentiation, angiogenesis, invasion, and metastasis of tumor cells via different pathways with low toxicity. Bioavailability of ursolic acid is poor due to poor solubility of the compound in water. Low bioavailability and short plasma half-life of ursolic acid along with non-specific distribution in the body are considered as impediments in the therapeutic development of the compound...
July 13, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28707189/cardio-oncology-gaps-in-knowledge-goals-advances-and-educational-efforts
#9
REVIEW
Gina Biasillo, Carlo M Cipolla, Daniela Cardinale
Over the past 20 years, cancer treatments have become more effective, leading to significant improvements in survival rates. However, anticancer drugs can have several possible cardiovascular side effects; in particular, the development of left ventricular dysfunction with chemoradiation therapy can negatively affect patients' cardiac outcome, and can limit anticancer treatments. This is an ongoing issue that will continue to persist, due to the ongoing development of new antitumor agents with potential cardiotoxic effects, and the prolonged life expectancy of long-term cancer survivors...
August 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28706559/insights-into-the-roles-of-midazolam-in-cancer-therapy
#10
REVIEW
Jinghua Jiao, Yuheng Wang, Xiaofeng Sun, Xiaojing Jiang
With its high worldwide mortality and morbidity, cancer has gained increasing attention and novel anticancer drugs have become the focus for cancer research. Recently, studies have shown that most anesthetic agents can influence the activity of tumor cells. Midazolam is a γ-aminobutyric acid A (GABAA) receptor agonist, used widely for preoperative sedation and as an adjuvant during neuraxial blockade. Some studies have indicated the potential for midazolam as a novel therapeutic cancer drug; however, the mechanism by which midazolam affects cancer cells needs to be clarified...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28705120/qsar-docking-admet-system-pharmacology-studies-on-tormentic-acid-derivatives-for-anticancer-activity
#11
Sarfaraz Alam, Feroz Khan
To explore the anticancer compounds from tormentic acid derivatives, a quantitative structure-activity relationship (QSAR) model was developed by the multiple linear regression methods. The developed QSAR model yielded a high activity-descriptors relationship accuracy of 94% referred by regression coefficient (r(2)= 0.94) and a high activity prediction accuracy of 91%. The QSAR study indicates that chemical descriptors, chiV5, T_T_Cl_7, T_2_T_4, SsCH3count, and Epsilon3 are significantly correlated with anticancer activity...
July 14, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28700971/comparative-study-on-the-anticancer-activities-and-binding-properties-of-a-hetero-metal-binuclear-complex-co-dipic-2ni-oh2-5-%C3%A2-2h2o-dipic-dipicolinate-with-two-carrier-proteins
#12
Somaye Shahraki, Fereshteh Shiri, Mostafa Heidari Majd, Zohreh Razmara
Recognizing of binding mechanisms between drugs and carrier proteins is basic for us to understand the pharmacokinetics and pharmacodynamics of them. In this research, the anticancer activities of a binuclear complex [Co(dipic)2Ni(OH2)5]·2H2O (dipic=dipicolinate) against MDA-MB-231 cell lines were studied. Results of MTT assay and flow cytometry analysis revealed that above complex can induce the cytotoxicity and the apoptosis in breast cancer cell lines. So, this complex was selected to investigate its binding to human serum albumin (HSA) and bovine β-lactoglobulin (βLG) by spectroscopic methods (UV-visible, fluorescence and FT-IR) along with molecular docking technique...
July 1, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28694778/north-african-medicinal-plants-traditionally-used-in-cancer-therapy
#13
REVIEW
Jorge M Alves-Silva, Abderrahmane Romane, Thomas Efferth, Lígia Salgueiro
Background: Cancer is a major cause of mortality worldwide with increasing numbers by the years. In North Africa, the number of cancer patients is alarming. Also shocking is that a huge number of cancer patients only have access to traditional medicines due to several factors, e.g., economic difficulties. In fact, medicinal plants are widely used for the treatment of several pathologies, including cancer. Truthfully, herbalists and botanists in North African countries prescribe several plants for cancer treatment...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28693344/ultrasound-mediated-drug-delivery-by-gas-bubbles-generated-from-a-chemical-reaction
#14
Sungmun Lee, Leena Al-Kaabi, Aurélie Mawart, Ahsan Khandoker, Habiba Alsafar, Herbert F Jelinek, Kinda Khalaf, Ji-Ho Park, Yeu-Chun Kim
Highly echogenic and ultrasound-responsive microbubbles such as nitrogen, and perfluorocarbons have been exploited as ultrasound-mediated drug carriers. Here, we propose an innovative method for drug delivery using microbubbles generated from a chemical reaction. In a novel drug delivery system, luminol encapsulated in folate-conjugated bovine serum albumin nanoparticles (Fol-BSAN) can generate nitrogen gas (N2) by chemical reaction when it reacts with hydrogen peroxide (H2O2), one of reactive oxygen species (ROS)...
July 11, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28677642/newly-synthesized-doxorubicin-complexes-with-selected-metals-synthesis-structure-and-anti-breast-cancer-activity
#15
Agata Jabłońska-Trypuć, Grzegorz Świderski, Rafał Krętowski, Włodzimierz Lewandowski
Doxorubicin (DOX) is very effective chemotherapeutic agent, however it has several major drawbacks. Therefore the motivation for developing novel drug complexes as anticancer agents with different mechanism of action has arisen. The aim of the present study was to evaluate the influence of newly synthesized DOX complexes with selected metals (Mg, Mn, Co, Ni, Fe, Cu, Zn) on apoptosis, cell cycle, viability, proliferation and cytotoxicity in the breast cancer cell line MCF-7. Complexation of DOX with metals has likewise been the subject of our research...
July 4, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28676261/an-assay-to-detect-dna-damaging-agents-that-induce-nucleotide-excision-repairable-dna-lesions-in-living-human-cells
#16
Reine Takatsuka, Shunsuke Ito, Shigenori Iwai, Isao Kuraoka
Biochemical risk assessment studies of chemicals that induce DNA lesions are important, because lesions in genomic DNA frequently result in cancer, neurodegeneration, and aging in humans. Many classes of DNA lesions induced by chemical agents are eliminated via DNA repair mechanisms, such as nucleotide excision repair (NER) and base excision repair (BER), for the maintenance of genomic integrity. Individuals with NER-defective xeroderma pigmentosum (XP), in which bulky DNA lesions are not efficiently removed, are cancer-prone and suffer neurodegeneration...
August 2017: Mutation Research
https://www.readbyqxmd.com/read/28669337/synthetic-lethality-from-research-to-precision-cancer-nanomedicine
#17
Anuradha Gupta, Anas Ahmad, Aqib Iqbal Dar, Rehan Khan
Cancer is an evolutionary disease with multiple genetic alterations, accumulated due to chromosomal instability and/or aneuploidy and it sometimes acquires drug-resistant phenotype also. Whole genome sequencing and mutational analysis helped in understanding the differences among persons for predisposition of a disease and its treatment non-responsiveness. Thus, molecular targeted therapies came into existence. Among them, the concept of synthetic lethality have enthralled great attention as it is a pragmatic approach towards exploiting cancer cell specific mutations to specifically kill cancer cells without affecting normal cells and thus enhancing anti-cancer drug therapeutic index...
June 30, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28661335/cysteine-specific-chemical-proteomics-from-target-identification-to-drug-discovery
#18
Dominic G Hoch, Daniel Abegg, Chao Wang, Anton Shuster, Alexander Adibekian
Our laboratory focuses on chemical proteomics-enabled discovery of new cysteine-reactive small molecules with intriguing biomedical activities as well as identification and detailed characterization of their proteomic targets. In this overview article, we summarize our progress since 2013 in this research field. We have developed a novel mass spectrometry-based chemoproteomic method that allows detection and monitoring of up to ~3000 reactive cysteines in any cellular proteome. This is achieved via strategic use of two clickable, cysteine-reactive chemical probes with complementary substrate selectivity profiles, iodoacetamide and ethynyl benziodoxolone...
November 30, 2016: Chimia
https://www.readbyqxmd.com/read/28655440/iacp-gaensc-evolutionary-genetic-algorithm-based-ensemble-classification-of-anticancer-peptides-by-utilizing-hybrid-feature-space
#19
Shahid Akbar, Maqsood Hayat, Muhammad Iqbal, Mian Ahmad Jan
Cancer is a fatal disease, responsible for one-quarter of all deaths in developed countries. Traditional anticancer therapies such as, chemotherapy and radiation, are highly expensive, susceptible to errors and ineffective techniques. These conventional techniques induce severe side-effects on human cells. Due to perilous impact of cancer, the development of an accurate and highly efficient intelligent computational model is desirable for identification of anticancer peptides. In this paper, evolutionary intelligent genetic algorithm-based ensemble model, 'iACP-GAEnsC', is proposed for the identification of anticancer peptides...
June 17, 2017: Artificial Intelligence in Medicine
https://www.readbyqxmd.com/read/28654869/a-review-of-high-performance-liquid-chromatographic-mass-spectrometric-urinary-methods-for-anticancer-drug-exposure-of-health-care-workers
#20
REVIEW
Patricia I Mathias, Thomas H Connor, Clayton B'Hymer
This review describes published high performance liquid chromatography/mass spectrometry (HPLC-MS) methods for the determination of anticancer drugs in human urine as non-invasive tool for monitoring of health care worker exposure to antineoplastic and cytotoxic drugs. HPLC-MS is a sensitive and specific method for analysis of anticancer drugs and their metabolites in biological fluids. In this review, a tabular summary and overview of published HPLC-MS methods are presented, as well as future trends and limitations in this area of research...
June 19, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
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