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Docetaxel and nanoparticles

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https://www.readbyqxmd.com/read/28224894/development-of-drug-delivery-systems-for-taxanes-using-ionic-gelation-of-carboxyacyl-derivatives-of-chitosan
#1
Yury A Skorik, Anton A Golyshev, Andreii S Kritchenkov, Ekaterina R Gasilova, Daria N Poshina, Amal J Sivaram, Rangasamy Jayakumar
Nanoparticles of two chitosan derivatives - N-succinyl-chitosan (SC) and N-glutaryl-chitosan (GC) - were developed as passive transport systems for taxanes (paclitaxel and docetaxel) using an ionic gelation technique with sodium tripolyphosphate. These nanoparticles had an apparent hydrodynamic diameter of 300-350nm, a ζ-potential of 25-31mV, an encapsulation efficiency of 21-26%, and a drug loading efficiency of 6-13%. DLS and SLS analysis shows that the nanoparticles have a unimodal size distribution and spherical form...
April 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28184163/docetaxel-loaded-plga-and-plga-peg-nanoparticles-for-intravenous-application-pharmacokinetics-and-biodistribution-profile
#2
Pedram Rafiei, Azita Haddadi
Docetaxel is a highly potent anticancer agent being used in a wide spectrum of cancer types. There are important matters of concern regarding the drug's pharmacokinetics related to the conventional formulation. Poly(lactide-co-glycolide) (PLGA) is a biocompatible/biodegradable polymer with variable physicochemical characteristics, and its application in human has been approved by the United States Food and Drug Administration. PLGA gives polymeric nanoparticles with unique drug delivery characteristics. The application of PLGA nanoparticles (NPs) as intravenous (IV) sustained-release delivery vehicles for docetaxel can favorably modify pharmacokinetics, biofate, and pharmacotherapy of the drug in cancer patients...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28167390/hyper-cell-permeable-micelles-as-a-drug-delivery-carrier-for-effective-cancer-therapy
#3
Phei Er Saw, Mikyung Yu, Minsuk Choi, Eunbeol Lee, Sangyong Jon, Omid C Farokhzad
Although PEGylated liposomes (PEG-LS) have been intensively studied as drug-delivery vehicles, the rigidity and the hydrophilic PEG corona of liposomal membranes often limits cellular uptake, resulting in insufficient drug delivery to target cells. Thus, it is necessary to develop a new type of lipid-based self-assembled nanoparticles capable of enhanced cellular uptake, tissue penetration, and drug release than conventional PEGylated liposomes. Herein, we describe a simple modification of bicellar formulation in which the addition of a PEGylated phospholipid produced a dramatic physicochemical change in morphology, i...
January 31, 2017: Biomaterials
https://www.readbyqxmd.com/read/28161682/preclinical-evaluation-of-taxane-binding-peptide-modified-polymeric-micelles-loaded-with-docetaxel-in-an-orthotopic-breast-cancer-mouse-model
#4
Jennifer Logie, Ahil N Ganesh, Ahmed M Aman, Rima S Al-Awar, Molly S Shoichet
We developed a novel taxane-binding peptide (TBP) modified, biodegradable polymeric micelle that overcomes limitations of drug loading and poor serum stability typically seen with particle delivery, leading to enhanced pharmacokinetics and tumor distribution of docetaxel (DTX). The use of the taxane-binding peptide to increase docetaxel loading is particularly compelling as it takes advantage of a known intracellular binding mechanism in a new way. Docetaxel is a potent chemotherapeutic with a therapeutic index often limited by the toxicity of the excipients that are necessary to enhance its solubility for intravenous delivery...
January 26, 2017: Biomaterials
https://www.readbyqxmd.com/read/28150469/targeting-canine-mammary-tumours-via-gold-nanoparticles-functionalized-with-promising-co-ii-and-zn-ii-compounds
#5
L R Raposo, C Roma-Rodrigues, J Jesus, L M D R S Martins, A J Pombeiro, P V Baptista, A R Fernandes
BACKGROUND: Despite continuous efforts, the treatment of canine cancer has still to deliver effective strategies. For example, traditional chemotherapy with doxorubicin and/or docetaxel does not significantly increase survival in dogs with canine mammary tumors (CMTs). AIMS: Evaluate the efficiency of two metal compounds [Zn(DION)2 ]Cl (TS262, DION = 1,10-phenanthroline-5,6-dione) and [CoCl(H2 O)(DION)2 ][BF4 ] (TS265) and novel nanovectorizations designed to improve the anti-cancer efficacy of these compounds in a new CMT derived cell line (FR37-CMT)...
February 2, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/28150218/radiosensitizing-silica-nanoparticles-encapsulating-docetaxel-for-treatment-of-prostate-cancer
#6
Jodi Belz, Noelle Castilla-Ojo, Srinivas Sridhar, Rajiv Kumar
The applications of nanoparticles in oncology include enhanced drug delivery, efficient tumor targeting, treatment monitoring, and diagnostics. The "theranostic properties" associated with nanoparticles have shown enhanced delivery of chemotherapeutic drugs with superior imaging capabilities and minimal toxicities. In conventional chemotherapy, only a fraction of the administered drug reaches the tumor site or cancer cells. For successful translation of these formulations, it is imperative to evaluate the design and properties of these nanoparticles...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28128882/co-delivery-of-docetaxel-and-p44-42-mapk-sirna-using-psma-antibody-conjugated-bsa-pei-layer-by-layer-nanoparticles-for-prostate-cancer-target-therapy
#7
See-Tong Pang, Feng-Wei Lin, Cheng-Keng Chuang, Hung-Wei Yang
How to overcome the low accumulation of chemotherapeutic agent in tumor tissue and exhibit multitherapeutics remains an ongoing challenge for cancer treatment. Here, a simple method is demonstrated that used to prepare prostate-specific membrane antigen antibody (PSMAab )-conjugated fluorescent bovine serum albumin (BSA)-branched polyethylenimine layer-by-layer nanoparticles (BSA-PEILBL NPs) for co-delivery of docetaxel (DTX) and p44/42 mitogen-activated protein kinase (MAPK) small interfering RNA (p44/42 MAPK siRNA) as synergistic and selective inhibition of cancer cell proliferation platform...
January 27, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28128676/revisiting-the-role-of-sucrose-in-plga-peg-nanocarrier-for-potential-intranasal-delivery
#8
A Bonaccorso, T Musumeci, C Carbone, L Vicari, M Rosaria Lauro, G Puglisi
The efficient design of nanocarriers is a major challenge and must be correlated to the route of administration. Intranasal route is studied for local, systemic or cerebral treatments. In order to develop nanocarriers with suitable properties for intranasal delivery, to achieve brain, and to market the product, it is extremely important the simplification of the formulation in terms of raw materials. Surfactants and cryoprotectants are often added to improve structuration and/or storage of polymeric nanoparticles...
January 27, 2017: Pharmaceutical Development and Technology
https://www.readbyqxmd.com/read/28122302/co-delivery-of-docetaxel-and-curcumin-prodrug-via-dual-targeted-nanoparticles-with-synergistic-antitumor-activity-against-prostate-cancer
#9
Jieke Yan, Yuzhen Wang, Yuxiu Jia, Shuangde Liu, Chuan Tian, Wengu Pan, Xiaoli Liu, Hongwei Wang
PURPOSE: Combination therapy is increasingly used as a primary cancer treatment regimen. In this report, we designed EGFR peptide decorated nanoparticles (NPs) to co-deliver docetaxel (DTX) and pH sensitive curcumin (CUR) prodrug for the treatment of prostate cancer. RESULTS: EGFR peptide (GE11) targeted, pH sensitive, DTX and CUR prodrug NPs (GE11-DTX-CUR NPs) had an average diameter of 167nm and a zeta potential of -37.5mV. The particle size of the NPs was adequately maintained in serum and a sustained drug release pattern was observed...
January 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28079367/robust-responsive-and-targeted-plga-anticancer-nanomedicines-by-combination-of-reductively-cleavable-surfactant-and-covalent-hyaluronic-acid-coating
#10
Jintian Wu, Jian Zhang, Chao Deng, Fenghua Meng, Ru Cheng, Zhiyuan Zhong
PLGA-based nanomedicines have enormous potential for targeted cancer therapy. To boost their stability, targetability, and intracellular drug release, here we developed novel multifunctional PLGA anticancer nanomedicines by combining a reductively cleavable surfactant (RCS), vitamin E-SS-oligo(methyl diglycol l-glutamate), with covalent hyaluronic acid (HA) coating. Reduction-sensitive HA-coated PLGA nanoparticles (rHPNPs) were obtained with small sizes of 55-61 nm and ζ potentials of -26.7 to -28.8 mV at 18...
February 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28078561/clinical-benefit-of-nanoparticle-albumin-bound-paclitaxel-in-recurrent-metastatic-head-and-neck-squamous-cell-carcinoma-resistant-to-cremophor-based-paclitaxel-or-docetaxel
#11
Jessica Ley, Tanya M Wildes, Kristin Daly, Peter Oppelt, Douglas Adkins
The clinical benefit of nab-paclitaxel monotherapy for recurrent/metastatic head and neck squamous cell carcinoma (RM-HNSCC) that progressed on other taxanes (cremophor-based paclitaxel or docetaxel) is unknown. A retrospective analysis of patients treated at a single institution with nab-paclitaxel for taxane-resistant RM-HNSCC. The exploratory hypothesis was that nab-paclitaxel would result in clinical benefit (tumor response) in patients with taxane-resistant RM-HNSCC. Twelve patients who were treated with nab-paclitaxel monotherapy for taxane-resistant RM-HNSCC and met all eligibility criteria were identified...
February 2017: Medical Oncology
https://www.readbyqxmd.com/read/28017889/blood-brain-barrier-penetrating-amphiphilic-polymer-nanoparticles-deliver-docetaxel-for-the-treatment-of-brain-metastases-of-triple-negative-breast-cancer
#12
Chunsheng He, Ping Cai, Jason Li, Tian Zhang, Lucy Lin, Azhar Z Abbasi, Jeffrey T Henderson, Andrew Michael Rauth, Xiao Yu Wu
Brain metastasis is a fatal disease with limited treatment options and very short survival. Although systemic chemotherapy has some effect on peripheral metastases of breast cancer, it is ineffective in treating brain metastasis due largely to the blood-brain barrier (BBB). Here we developed a BBB-penetrating amphiphilic polymer-lipid nanoparticle (NP) system that efficiently delivered anti-mitotic drug docetaxel (DTX) for the treatment of brain metastasis of triple negative breast cancer (TNBC). We evaluated the biodistribution, brain accumulation, pharmacokinetics and efficacy of DTX-NP in a mouse model of brain metastasis of TNBC...
December 23, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28002762/long-circulating-polyhydroxybutyrate-co-hydroxyvalerate-nanoparticles-for-tumor-targeted-docetaxel-delivery-formulation-optimization-and-in-vitro-characterization
#13
Harsh Vardhan, Pooja Mittal, Sandeep Kumar Reddy Adena, Brahmeshwar Mishra
In the present research an attempt was made to develop and optimize docetaxel-loaded polyhydroxybutyrate-co-hydroxyvalerate (PHBV) nanoparticles, using modified emulsification solvent evaporation technique and design of experiment (DOE) methodology. Formulation of docetaxel-loaded PHBV nanoparticles was conducted by factor screening studies with Plackett-Burman design (PBD) followed by Box-Behnken experimental design (BBD) to evaluate the effect of independent variables on responses. Five most important independent variables were screened out, which were obtained from failure mode effect analysis (FMEA) and factor screening studies...
March 1, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27988472/co-delivery-of-docetaxel-and-verapamil-by-reduction-sensitive-peg-plga-ss-dtx-conjugate-micelles-to-reverse-the-multi-drug-resistance-of-breast-cancer
#14
Yuanyuan Guo, Wenxiu He, Shengfeng Yang, Dujuan Zhao, Zhonghao Li, Yuxia Luan
The clinical usage of docetaxel (DTX) has been blocked in the clinic because of its poor solubility and tumour multi-drug resistance (MDR). The dominating mechanism of MDR is the over-expression of p-gp on tumour cells. Traditional nano-medicines, such as nanoparticles and micelles, have been used to physically entrap DTX to improve their solubility, while the drug loading content was very low and the tumour resistance was neglected. In this study, the synthesized reduction-sensitive mPEG-PLGA-SS-DTX conjugate was utilized to load the p-gp inhibitor veraparmil (VRP) to prepare DTX and VRP co-delivered mPEG-PLGA-SS-DTX/VRP (PP-SS-DTX/VRP) multi-functional micelles to reverse MDR and enhance the anti-tumour effect of DTX...
December 11, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27987795/biocompatible-hyperbranched-polyglycerol-modified-%C3%AE-cyclodextrin-derivatives-for-docetaxel-delivery
#15
Zejun Xu, Yi Zhang, Qian Hu, Qiao Tang, Jiake Xu, Jianping Wu, Thomas Brett Kirk, Dong Ma, Wei Xue
The development of biocompatible vector for hydrophobic drug delivery remains a longstanding issue in cancer therapy. We design and synthesis a drug delivery system based on HPG modified β-CD (β-CD-HPG) by conjugating HPG branches onto β-CD core and its structure was confirmed by NMR, FTIR, GPC and solubility. In vitro biocompatibility tests showed that HPG modification significantly improved red blood cells morphology alteration and hemolysis cause by β-CD and β-CD-HPG displayed cell safety apparently in a wide range of 0...
February 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27966988/docetaxel-loaded-plga-nanoparticles-improve-efficacy-in-taxane-resistant-triple-negative-breast-cancer
#16
Charles J Bowerman, James D Byrne, Kevin S Chu, Allison N Schorzman, Amanda W Keeler, Candice A Sherwood, Jillian L Perry, James C Luft, David B Darr, Allison M Deal, Mary E Napier, William C Zamboni, Norman E Sharpless, Charles M Perou, Joseph M DeSimone
Novel treatment strategies, including nanomedicine, are needed for improving management of triple-negative breast cancer. Patients with triple-negative breast cancer, when considered as a group, have a worse outcome after chemotherapy than patients with breast cancers of other subtypes, a finding that reflects the intrinsically adverse prognosis associated with the disease. The aim of this study was to improve the efficacy of docetaxel by incorporation into a novel nanoparticle platform for the treatment of taxane-resistant triple-negative breast cancer...
January 11, 2017: Nano Letters
https://www.readbyqxmd.com/read/27910990/a-ph-responsive-sequential-disassembly-nanohybrid-for-mitochondrial-targeting
#17
Lijia Li, Wei Sun, Lian Li, Yuanyuan Liu, Lei Wu, Fengling Wang, Zhou Zhou, Zhirong Zhang, Yuan Huang
Cationic materials have been reported as promising tools for targeting to mitochondria which are the "power houses" and "metabolic garbage keepers" of cells. However, their positive nature also restricts their in vivo application due to the quick clearance. Herein, we fabricated a nanohybrid consisting of the pH-responsive N-(2-hydroxypropyl)methacrylamide (HPMA) co-polymer (R-P) shells and positive mesoporous silica nanoparticle cores via electrostatic interaction. The anticancer drug, docetaxel (DTX), was encapsulated in the positive MSN cores (MSN-DTX)...
January 7, 2017: Nanoscale
https://www.readbyqxmd.com/read/27899044/folic-acid-modified-and-functionalized-cus-nanocrystal-based-nanoparticles-for-combined-tumor-chemo-and-photothermal-therapy
#18
Xiali Zhu, Yingjie Zhang, Heqing Huang, Huijuan Zhang, Lin Hou, Zhenzhong Zhang
Recent studies have identified that CuS nanocrystal (CuS NCs) could be used as a new class of promising photo-thermal agents due to their excellent plasmonic absorption abilities in a wide near-infrared (NIR) region. However, most of nanocarriers lack target capacity for combining chemotherapy and photothermal therapy effects. Herein, we reported chitosan (CS)-encapsulated and folic acid (FA)-modified nanoparticles (NPs) simultaneously loading with functionalized CuS NCs and docetaxel (DTX) (FA-DTX-PVP/CuS-NPs)...
December 28, 2016: Journal of Drug Targeting
https://www.readbyqxmd.com/read/27892715/incorporation-of-chemotherapeutic-agent-and-photosensitizer-in-a-low-temperature-sensitive-liposome-for-effective-chemo-hyperthermic-anticancer-activity
#19
Hanh Thuy Nguyen, Tuan Hiep Tran, Raj Kumar Thapa, Tung Thanh Pham, Jee-Heon Jeong, Yu Seok Youn, Han-Gon Choi, Chul Soon Yong, Jong Oh Kim
OBJECTIVES: In this study, we combined chemo- and hyperthermia therapy in a low temperature-sensitive liposome (LTSL) for potential cancer treatment. METHODS: Docetaxel (DOC) and indocyanine green (ICG) as a therapeutic agent and photosensitizer, respectively, were incorporated in a low temperature-sensitive liposome (LTSL/DI). Nanoparticles were evaluated for the physicochemical characterizations, in vitro uptake and cytotoxicity, and furthermore in vivo anticancer activity...
December 7, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27884641/nanoparticle-delivery-of-chemotherapy-combination-regimen-improves-the-therapeutic-efficacy-in-mouse-models-of-lung-cancer
#20
Jing Tian, Zachary Rodgers, Yuanzeng Min, Xiaomeng Wan, Hui Qiu, Yu Mi, Xi Tian, Kyle T Wagner, Joseph M Caster, Yanfei Qi, Kyle Roche, Tian Zhang, Jianjun Cheng, Andrew Z Wang
The combination chemotherapy regimen of cisplatin (CP) and docetaxel (DTX) is effective against a variety of cancers. However, combination therapies present unique challenges that can complicate clinical application, such as increases in toxicity and imprecise exposure of tumors to specific drug ratios that can produce treatment resistance. Drug co-encapsulation within a single nanoparticle (NP) formulation can overcome these challenges and further improve combinations' therapeutic index. In this report, we employ a CP prodrug (CPP) strategy to formulate poly(lactic-co-glycolic acid)-poly(ethylene glycol) (PLGA-PEG) NPs carrying both CPP and DTX...
November 21, 2016: Nanomedicine: Nanotechnology, Biology, and Medicine
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