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Docetaxel and nanoparticles

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https://www.readbyqxmd.com/read/28079367/robust-responsive-and-targeted-plga-anticancer-nanomedicines-by-combining-reductively-cleavable-surfactant-and-covalent-hyaluronic-acid-coating
#1
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 zeta potentials of -26.7 - -28.8 mV at 18...
January 12, 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
#2
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
#3
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
#4
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...
December 18, 2016: 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
#5
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
#6
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
#7
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...
December 22, 2016: Nano Letters
https://www.readbyqxmd.com/read/27910990/a-ph-responsive-sequential-disassembly-nanohybrid-for-mitochondrial-targeting
#8
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
#9
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
#10
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
#11
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
https://www.readbyqxmd.com/read/27875950/targeted-delivery-of-cabazitaxel-by-conjugation-to-albumin-peg-folate-nanoparticles-using-a-cysteine-acrylate-linker-and-simple-synthesis-conditions
#12
Mohammad Kazem Khoeeniha, Mehdi Esfandyari-Manesh, Hossein Behrouz, Mohsen Amini, Behrang Shiri Varnamkhasti, Fatemeh Atyabi, Rassoul Dinarvand
Cabazitaxel (CBZ) is a new taxane approved by the FDA for treatment of castration-resistant prostate cancer not responding to docetaxel. However, CBZ is not a suitable substrate for p-glycoprotein 60, an efflux pump which transports anticancer drugs out of malignant cells and is therefore a promising drug for treatment of multidrug resistant tumors. Similar to other taxanes, the presence of Tween 80 in the CBZ formulation shows that it is insoluble in water. Therefore, to increase the solubility and circulation time, a CBZ-albumin conjugate was synthesized...
November 22, 2016: Current Drug Delivery
https://www.readbyqxmd.com/read/27873146/comparison-of-dialysis-and-solvatofluorochromism-based-methods-to-determine-drug-release-rates-from-polymer-nanoassemblies
#13
Derek Reichel, Younsoo Bae
PURPOSE: To compare traditional dialysis- and novel solvatofluorochromism (SFC)-based methods for accurate determination of drug release profiles for nanoparticle drug carriers. METHODS: Polymer nanoassemblies (PNAs) varying in drug release patterns were prepared using poly(ethylene glycol), poly(ethylenimine), hydrophobic excipients (palmitate and deoxycholate), and model hydrophobic anticancer drugs with clinical relevance (carfilzomib and docetaxel). Nile blue (NB) was used as a model SFC dye quenching fluorescence in water yet emitting strong fluorescence in the presence of hydrophobic drugs within PNAs...
November 21, 2016: Pharmaceutical Research
https://www.readbyqxmd.com/read/27873118/current-update-of-a-carboxymethylcellulose-peg-conjugate-platform-for-delivery-of-insoluble-cytotoxic-agents-to-tumors
#14
Yang Yang, Joseph Bteich, Shyh-Dar Li
Cytotoxic chemotherapeutic agents are used as the standard therapy for a range of significant cancers, but many of these drugs suffer from poor water solubility and low selectivity, limiting their clinical efficacy. To overcome these shortcomings, Cellax™ drug delivery platform was developed. Cellax™ is a polymer-based nanoparticle drug delivery system designed to solubilize hydrophobic drugs and target them to solid tumors, thereby enhancing the efficacy and reducing the side effects. Cellax-docetaxel (Cellax-DTX) displayed improved pharmacokinetic, safety, and efficacy profiles compared to native DTX (Taxotere®) and Nab-paclitaxel (Nab-PTX, Abraxane®) in multiple animal models...
November 21, 2016: AAPS Journal
https://www.readbyqxmd.com/read/27825919/formulation-and-evaluation-of-targeted-nanoparticles-for-breast-cancer-theranostic-system
#15
Pegah Dadras, Fatemeh Atyabi, Shiva Irani, Leila Ma'mani, Alireza Foroumadi, Zahra Hadavand Mirzaie, Marzieh Ebrahimi, R Dinarvand
Theranostic polymeric NPs developed for both cancer diagnosis and cancer therapy. This multifunctional polymeric vehicle was prepared by a single emulsion evaporation method, using carboxyl-terminated PLGA. LHRH as a targeting moiety, was conjugated to the surface of polymeric carrier by applying polyethylene glycol. The results indicated that the diameter of NPs was ~185.4±4.6nm as defined by DLS. The entrapment efficacy of docetaxel, silibinin, and SPIONs was 84.6±4.1%, 80.6±2.7%, and 77.9±4.3%, respectively...
January 15, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27805051/tumour-microenvironment-responsive-lipoic-acid-nanoparticles-for-targeted-delivery-of-docetaxel-to-lung-cancer
#16
Fenfen Gu, Chuling Hu, Zhongguang Tai, Chong Yao, Jing Tian, Lijuan Zhang, Qingming Xia, Chunai Gong, Yuan Gao, Shen Gao
In the present study, we developed a novel type of reduction-sensitive nanoparticles (NPs) for docetaxel (DTX) delivery based on cross-linked lipoic acid NPs (LANPs). The physicochemical properties, cellular uptake and in vitro cytotoxicity of DTX loaded LANPs (DTX-LANPs) on A549 cells were investigated. Furthermore, the in vivo distribution and in vivo efficacy of DTX-LANPs was evaluated. The results showed that DTX-LANPs had a particle size of 110 nm and a negative zeta potential of -35 mv with excellent colloidal stability...
November 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27764799/polymeric-nanoparticle-docetaxel-for-the-treatment-of-advanced-solid-tumors-phase-i-clinical-trial-and-preclinical-data-from-an-orthotopic-pancreatic-cancer-model
#17
Si Yeol Song, Kyu-Pyo Kim, Seong-Yun Jeong, Jin Park, Jaesook Park, Joohee Jung, Hye Kyung Chung, Sa-Won Lee, Min Hyo Seo, Jung-Shin Lee, Kyung Hae Jung, Eun Kyung Choi
We assessed the efficacy of the polymeric nanoparticle containing docetaxel (PNP-DTX) in preclinical mouse models and determined the maximum tolerated dose (MTD) through clinical study. Subcutaneous and orthotopic mouse models were dedicated. Tumor growth delay in orthotopic model and quantification of in vivo imaging in orthotopic model were evaluated. Phase I clinical study was a single-center, prospective, open-label trial in advanced solid tumors. PNP-DTX was injected intravenously and the starting dose was 20 mg/m2 escalated to 35 mg/m2, 45 mg/m2, 60 mg/m2 and 75 mg/m2...
October 14, 2016: Oncotarget
https://www.readbyqxmd.com/read/27764758/tat-modified-and-lipid-pei-hybrid-nanoparticles-for-co-delivery-of-docetaxel-and-pdna
#18
Shufang Dong, Xin Zhou, Jiying Yang
BACKGROUND: Co-delivery of anticancer drugs and gene is promising to generate synergistic anticancer effects. Surface modification of nanocarriers with specific ligands could further assist in targeting and internalization of the nanocarriers into specific cell populations, such as cancers and disease organs. PURPOSE: The aim of the study reported here is to develop Cell-penetrating peptides (CPPs) modified lipid - PEI hybrid nanoparticles (LPNs) for effective co-delivery of docetaxel (DTX) and plasmid DNA (pDNA) for combination chemotherapy...
December 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27697648/magnetic-core-shell-hybrid-nanoparticles-for-receptor-targeted-anti-cancer-therapy-and-magnetic-resonance-imaging
#19
Asifkhan Shanavas, Sisini Sasidharan, Dhirendra Bahadur, Rohit Srivastava
Hybrid nanoparticles with magnetic poly (lactide-co-glycolide) (PLGA) nanoparticle 'core', surface modified with folate-chitosan (fol-cht) conjugate 'shell' are evaluated as simultaneous anti-cancer therapeutic and MRI contrast agent. The fol-cht conjugate is prepared using carbodiimide crosslinking chemistry at an optimized folate to amine (chitosan) molar ratio for further coating on PLGA nanoparticles loaded with docetaxel and well packed super paramagnetic iron oxide nanoparticles (SPIONs). Apart from possessing a targeting moiety, the coating provides a physical barrier to avoid undesired burst release of drug and also imparts sensitivity to acidic pH, due to protonated amine group dependent decondensation of the coating and subsequent drug release...
January 15, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27614158/an-injectable-acellular-matrix-scaffold-with-absorbable-permeable-nanoparticles-improves-the-therapeutic-effects-of-docetaxel-on-glioblastoma
#20
He-Lin Xu, Kai-Li Mao, Cui-Tao Lu, Zi-Liang Fan, Jing-Jing Yang, Jie Xu, Pian-Pian Chen, De-Li ZhuGe, Bi-Xin Shen, Bing-Hui Jin, Jian Xiao, Ying-Zheng Zhao
Intratumoral drug delivery (IT) is an inherently appealing approach for concentrating toxic chemotherapies at the site of action. However, for most chemotherapies, poor tumor penetration and short retention at the administration site limit their anti-tumor effects. In this work, we describe permeable nanoparticles (NPs) prepared with a novel amphiphilic polymer, RRR-α-tocopheryl succinate-grafted-ε-polylysine conjugate (VES-g-ε-PLL). The nanoparticles (NPs) of VES-g-ε-PLL exhibited an ultra-small hydrodynamic diameter (20...
November 2016: Biomaterials
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