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https://www.readbyqxmd.com/read/28822272/b24n24-fullerene-as-a-carrier-for-5-fluorouracil-anti-cancer-drug-delivery-dft-studies
#1
Mehrnoosh Khodam Hazrati, Zahra Javanshir, Zargham Bagheri
It has been previously indicated that BN nanostructures may be nontoxic and biocompatible. Here the potential application of a B24N24 is explored as a drug delivery system for anti-cancer 5-fluorouracil based on the density functional theory. This drug prefers to attach via its oxygen atoms to the B atoms of the cluster with adsorption energy about -11.90kcalmol(-1) based on the dispersion corrected B3LYP level of theory. To make the cluster more appropriate for drug delivery, we replaced a B atom by Si or Al atom to improve the interaction strength...
August 9, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28822188/-characterization-and-activity-effect-on-adh-of-polysaccharides-from-mori-fructus
#2
Xing Wang, Qing-Fang Deng, Hua-Guo Chen, Xin Zhou
Mori Fructus polysaccharides (MFPs) have been used as a source of therapeutic agents. The most promising activities of these biopolymers are their immunomodulation and anti-cancer effects. It was reported that polysaccharides were a potential drug against liver injury, but the hepatoprotective effect of MFPs was ambiguous. In this study, the fractionation of crude polysaccharides on DEAE-Cellulose 52 gave four fractions (MFP-1, MFP-2, MFP-2 and MFP-4). The results showed that the contents of carbohydrates were 75...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28820501/interleukin-armed-chimeric-antigen-receptor-modified-t-cells-for-cancer-immunotherapy
#3
REVIEW
Y Huang, D Li, D-Y Qin, H-F Gou, W Wei, Y-S Wang, Y-Q Wei, W Wang
Chimeric antigen receptor-modified T cells (CAR-T) are endowed with cytotoxic specificity to tumor cells. Although CAR-T-based cancer immunotherapy presents curable therapeutic potential for hematological malignancies, achieving substantial efficacy for solid tumors remain challenging. Researchers have exploited many strategies to enhance the anti-tumor efficacy of CAR-T cells for solid tumors, among which cytokine-armed CAR-T cells improve the proliferation, survival, homing and other properties of CAR-T cells...
August 18, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28820020/multiple-emulsions-as-effective-platforms-for-controlled-anti-cancer-drug-delivery
#4
Ewa Dluska, Agnieszka Markowska-Radomska, Agata Metera, Barbara Tudek, Konrad Kosicki
AIM: Developing pH-responsive multiple emulsion platforms for effective glioblastoma multiforme therapy with reduced toxicity, a drug release study and modeling. MATERIALS & METHODS: Cancer cell line: U87 MG, multiple emulsions with pH-responsive biopolymer and encapsulated doxorubicin (DOX); preparation of multiple emulsions in a Couette-Taylor flow biocontactor, in vitro release study of DOX (fluorescence intensity analysis), in vitro cytotoxicity study (alamarBlue cell viability assay) and numerical simulation of DOX release rates...
August 18, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28819951/metformin-a-new-old-drug
#5
Marta Patrycja Wróbel, Bogdan Marek, Dariusz Kajdaniuk, Dominika Rokicka, Aleksandra Szymborska-Kajanek, Krzysztof Strojek
For many years metformin has been the gold standard in the treatment of type 2 diabetes. According to recommendations of the most important diabetes associations, this is the first-choice drug for use as monotherapy in patients with newly diagnosed type 2 diabetes. Metformin is also recommended in combined treatment when monotherapy is no longer effective. It is then combined with a sulfony-lurea, an incretin, flozin, or insulin, irrespective of the number of insulin injections per day. Besides its properties used in the treatment of diabetes, metformin has been treated for some time as a drug of a so-called pleiotropic activity, as each year brings new reports about its favourable effect in different conditions...
2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28819759/melatonin-increases-the-effect-of-5-fluorouracil-based-chemotherapy-in-human-colorectal-adenocarcinoma-cells-in-vitro
#6
Roberto Pariente, Ignacio Bejarano, Ana Beatriz Rodríguez, José Antonio Pariente, Javier Espino
Melatonin has antitumor activity via several mechanisms including its anti-proliferative and pro-apoptotic effects. Moreover, it has been proven that melatonin in combination with chemotherapeutic agents enhances chemotherapy-triggered apoptosis in several types of cancer. Therefore, this study was intended to evaluate whether melatonin is able to strengthen the anti-cancer potential of different chemotherapeutic drugs in human colorectal adenocarcinoma HT-29 cells. We found that treatment with 20 µM cisplatin (CIS) or 1 mM 5-fluorouracil (5-FU) for 72 h induced a decrease in HT-29 cell viability...
August 17, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28819454/a-novel-mpeg-pdlla-pll-copolymer-for-docetaxel-delivery-in-breast-cancer-therapy
#7
Liwei Tan, Jinrong Peng, Qian Zhao, Lan Zhang, Xichuan Tang, Lijuan Chen, Minyi Lei, Zhiyong Qian
Satisfactory drug loading capacity and stability are the two main factors that determine the anti-cancer performance. In general, the stability of the micelles is reduced when the drug loading (DL) is increased. Therefore, it was a challenge to have high drug loading capacity and good stability. In this study, we introduced a hydrophilic poly (L-Lysine) (PLL) segment with different molecular-weights into the monomethoxy poly (ethylene glycol)-poly (D, L-lactide) (MPEG-PDLLA) block copolymer to obtain a series of novel triblock MPEG-PDLLA-PLL copolymers...
2017: Theranostics
https://www.readbyqxmd.com/read/28819370/metformin-inhibits-gemcitabine-induced-apoptosis-in-pancreatic-cancer-cell-lines
#8
Dietmar Zechner, Ann-Christin Albert, Florian Bürtin, Brigitte Vollmar
Many preclinical and clinical studies are currently evaluating metformin in combination with classical therapeutic agents as anti-cancer therapy. In this study we used three distinct pancreatic cancer cell lines and evaluated cell death by trypan blue assay and Western Blots using antibodies directed against cleaved caspase 3 and PARP. Surprisingly, we observed that 20mM metformin did not enhance, but rather inhibited gemcitabine induced cell death in murine 7265PDA, 6606PDA and 6606l cells. Microenvironmental aspects such as oxygen supply or the pH value did not influence the inhibition of cancer cell apoptosis by metformin...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28818768/novel-gomisin-b-analogues-as-potential-cytotoxic-agents-design-synthesis-biological-evaluation-and-docking-studies
#9
B Poornima, Bandi Siva, A Venkanna, G Shankaraiah, Nishant Jain, Dharmendra Kumar Yadav, Sanjeev Misra, K Suresh Babu
As part of pharmacological-phytochemical integrated studies on medicinal flora, Gomisin B (1) was isolated as major phytochemical lead from schisandra grandiflora, a plant traditionally used in different Asian systems of medicine. A series of 1,2,3-triazoles derivatives were synthesized at the C-7' position of the gomisin B core through diastereoselective Michael addition followed by regioselective Huisgen 1,3-dipolar cycloaddition reactions. All these triazolyl derivatives (5a-5q) were well characterized using modern spectroscopic techniques and evaluated for their anti-cancer activity against a panel of five human cancerous cell-lines...
August 1, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28817186/a-prognostic-11genes-expression-model-for-ovarian-cancer
#10
Chuan-Di Men, Qiong-Na Liu, Qing Ren
The symptoms of ovarian cancer at early stages are usually absent which makes the diagnosis in its early stages exceedingly difficult. Previous research has proven that ovarian cancer is a genetic disease, which depends on the alteration of multi-cancer related genes and anti-cancer genes, multi-stages and multi-pathways, involving a variety of oncogene activation and anti-oncogene inactivation. For a better understanding of the prognostic classification of ovarian cancer, gene expression profiles were used to analyse the prognostic factors of ovarian cancer, and the prognostic model was used to classify the ovarian cancer samples...
August 17, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28815885/novel-landscape-of-hla-g-isoforms-expressed-in-clear-cell-renal-cell-carcinoma-patients
#11
Diana Tronik-Le Roux, Julie Renard, Jérôme Vérine, Victor Renault, Emmanuel Tubacher, Joel LeMaoult, Nathalie Rouas-Freiss, Jean-François Deleuze, François Desgrandschamps, Edgardo D Carosella
Immune-checkpoints are powerful inhibitory molecules that promote tumor survival. Their blockade is now recognized as providing effective therapeutic benefit against cancer. HLA-G, a recently identified immune checkpoint, has been detected in many types of primary tumors and metastases, in malignant effusions as well as on tumor-infiltrating cells, particularly in patients with clear cell renal cell carcinoma (ccRCC). Here, in order to define a possible anti-cancer therapy, we used a molecular approach based on an unbiased strategy that combines transcriptome determination and immunohistochemical labeling, to analyze in-depth, the HLA-G isoforms expressed in these tumors...
August 16, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28815047/whole-blood-rna-transcript-based-models-can-predict-clinical-response-in-two-large-independent-clinical-studies-of-patients-with-advanced-melanoma-treated-with-the-checkpoint-inhibitor-tremelimumab
#12
Philip Friedlander, Karl Wassmann, Alan M Christenfeld, David Fisher, Chrisann Kyi, John M Kirkwood, Nina Bhardwaj, William K Oh
BACKGROUND: Tremelimumab is an antibody that blocks CTLA-4 and demonstrates clinical efficacy in a subset of advanced melanoma patients. An unmet clinical need exists for blood-based response-predictive gene signatures to facilitate clinically effective and cost-efficient use of such immunotherapeutic interventions. METHODS: Peripheral blood samples were collected in PAXgene® tubes from 210 treatment-naïve melanoma patients receiving tremelimumab in a worldwide, multicenter phase III study (discovery dataset)...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28815003/glioblastoma-stem-like-cells-secrete-the-pro-angiogenic-vegf-a-factor-in-extracellular-vesicles
#13
Lucas Treps, Raul Perret, Sébastien Edmond, Damien Ricard, Julie Gavard
Glioblastoma multiforme (GBM) are mortifying brain tumours that contain a subpopulation of tumour cells with stem-like properties, termed glioblastoma stem-like cells (GSCs). GSCs largely contribute to tumour initiation, propagation and resistance to current anti-cancer therapies. GSCs are situated in perivascular niches, closely associated with brain microvascular endothelial cells, thereby involved in bidirectional molecular and cellular interactions. Moreover, extracellular vesicles are suspected to carry essential information that can adapt the microenvironment to the tumour's needs, including tumour-induced angiogenesis...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28814374/from-bench-laboratory-to-bed-hospital-home-how-to-explore-effective-natural-and-synthetic-pak1-blockers-longevity-promoters-for-cancer-therapy
#14
REVIEW
Hiroshi Maruta, Mok-Ryeon Ahn
PAK family kinases are RAC/CDC42-activated kinases that were first found in a soil amoeba 4 decades ago, and 2 decades later, were discovered in mammals as well. Since then at least 6 members of this family have been identified in mammals. One of them called PAK1 has been best studied so far, mainly because it is essential not only for malignant cell growth and metastasis, but also for many other diseases/disorders such as diabetes (type 2), AD (Alzheimer's disease), hypertension, and a variety of inflammatory or infectious diseases, which definitely shorten our lifespan...
August 9, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28813533/18%C3%A3-glycyrrhetinic-acid-derivative-promotes-proliferation-migration-and-aquaporin-3-expression-in-human-dermal-fibroblasts
#15
Chi-Feng Hung, Chien-Yu Hsiao, Wen-Hao Hsieh, Hsin-Ju Li, Yi-Ju Tsai, Chun-Nan Lin, Hsun-Hsien Chang, Nan-Lin Wu
Licorice (Glycyrrhiza) species have been widely used as a traditional medicine and a natural sweetener in foods. The 18β-glycyrrhetinic acid (18β-GA) is a bioactive compound in licorice that exhibits potential anti-cancer, anti-inflammatory, and anti-microbial activities. Many synthesized derivatives of 18β-GA have been reported to be cytotoxic and suggested for the treatment of malignant diseases. In this study, we explored the possible pharmacological roles of an 18β-GA derivative in skin biology using primary human dermal fibroblasts and HaCaT keratinocytes as cell models...
2017: PloS One
https://www.readbyqxmd.com/read/28813436/enhancement-of-the-production-of-l-glutaminase-an-anticancer-enzyme-from-aeromonas-veronii-by-adaptive-and-induced-mutation-techniques
#16
S Aravinth Vijay Jesuraj, Md Moklesur Rahman Sarker, Long Chiau Ming, S Marylin Jeya Praya, M Ravikumar, Wong Tin Wui
Microbial anti-cancer enzymes have been proven to be effective and economical agents for cancer treatment. Aeromonas veronii has been identified as a microorganism with the potential to produce L-glutaminase, an anticancer agent effective against acute lymphocytic leukaemia. In this study, a selective medium of Aeromonas veronii was used to culture the microorganism. Strain improvement was done by adaptive and induced mutational techniques. A selective minimal agar media was incorporated for the growth of the strain which further supports adaptive mutation...
2017: PloS One
https://www.readbyqxmd.com/read/28813415/cdk4-6-inhibition-triggers-anti-tumour-immunity
#17
Shom Goel, Molly J DeCristo, April C Watt, Haley BrinJones, Jaclyn Sceneay, Ben B Li, Naveed Khan, Jessalyn M Ubellacker, Shaozhen Xie, Otto Metzger-Filho, Jeremy Hoog, Matthew J Ellis, Cynthia X Ma, Susanne Ramm, Ian E Krop, Eric P Winer, Thomas M Roberts, Hye-Jung Kim, Sandra S McAllister, Jean J Zhao
Cyclin-dependent kinases 4 and 6 (CDK4/6) are fundamental drivers of the cell cycle and are required for the initiation and progression of various malignancies. Pharmacological inhibitors of CDK4/6 have shown significant activity against several solid tumours. Their primary mechanism of action is thought to be the inhibition of phosphorylation of the retinoblastoma tumour suppressor, inducing G1 cell cycle arrest in tumour cells. Here we use mouse models of breast carcinoma and other solid tumours to show that selective CDK4/6 inhibitors not only induce tumour cell cycle arrest, but also promote anti-tumour immunity...
August 16, 2017: Nature
https://www.readbyqxmd.com/read/28812060/reolysin-and-histone-deacetylase-inhibition-in-the-treatment-of-head-and-neck-squamous-cell-carcinoma
#18
Alena C Jaime-Ramirez, Jun-Ge Yu, Enrico Caserta, Ji Young Yoo, Jianying Zhang, Tae Jin Lee, Craig Hofmeister, John H Lee, Bhavna Kumar, Quintin Pan, Pawan Kumar, Robert Baiocchi, Theodoros Teknos, Flavia Pichiorri, Balveen Kaur, Matthew Old
Oncolytic viruses (OVs) are emerging as powerful anti-cancer agents and are currently being tested for their safety and efficacy in patients. Reovirus (Reolysin), a naturally occurring non-pathogenic, double-stranded RNA virus, has natural oncolytic activity and is being tested in phase I-III clinical trials in a variety of tumor types. With its recent US Food and Drug Administration (FDA) orphan drug designation for several tumor types, Reolysin is a potential therapeutic agent for various cancers, including head and neck squamous cell carcinomas (HNSCCs), which have a 5-year survival of ∼55%...
June 16, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28811960/rehmannia-glutinosa-polysaccharide-induces-toll-like-receptor-4-dependent-spleen-dendritic-cell-maturation-and-anti-cancer-immunity
#19
Li Xu, Minseok Kwak, Wei Zhang, Ling Zeng, Peter Chang-Whan Lee, Jun-O Jin
Rehmannia glutinosa polysaccharide (RGP) has shown an activation of immune cells in vitro. However, the immune stimulatory effect of RGP in a mouse in vivo is not well studied. In this study, we examined the effect of RGP on dendritic cell (DC) activation and anticancer immunity in vivo. Treatments of RGP in C56BL/6 mice induced increased levels of co-stimulatory molecule expression and pro-inflammatory cytokine production in spleen DCs dependent on toll-like receptor 4 (TLR4), and those DCs promoted interferon-gamma (IFNγ) production in CD4(+) and CD8(+) T cells...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28811897/impact-of-in-vitro-chemosensitivity-test-guided-platinum-based-adjuvant-chemotherapy-on-the-surgical-outcomes-of-patients-with-p-stage-iiia-non-small-cell-lung-cancer-that-underwent-complete-resection
#20
Yuki Akazawa, Masahiko Higashiyama, Kazumi Nishino, Jyunji Uchida, Toru Kumagai, Takako Inoue, Ayako Fujiwara, Toshiteru Tokunaga, Jiro Okami, Fumio Imamura, Ken Kodama, Hisayuki Kobayashi
The impact of in vitro chemosensitivity test-guided platinum-based adjuvant chemotherapy on the surgical outcomes of patients undergoing complete resection for locally advanced non-small cell lung cancer (NSCLC) has yet to be elucidated. In the present study, the utility of adjuvant chemotherapy based on the collagen gel droplet embedded culture drug sensitivity test (CD-DST) in patients with p (pathology)-stage IIIA NSCLC was retrospectively analyzed. A series of 39 patients that had received platinum-based adjuvant chemotherapy following complete resection between 2007 and 2012 were enrolled...
September 2017: Molecular and Clinical Oncology
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