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Docetaxel and nanoparticles

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https://www.readbyqxmd.com/read/27910990/a-ph-responsive-sequential-disassembly-nanohybrid-for-mitochondrial-targeting
#1
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)...
December 2, 2016: Nanoscale
https://www.readbyqxmd.com/read/27899044/folic-acid-modified-and-functionalized-cus-nanocrystal-based-nanoparticles-for-combined-tumor-chemo-and-photothermal-therapy
#2
Zhu Xiali, 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)...
November 30, 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
#3
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...
November 28, 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
#4
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
#5
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
#6
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
#7
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
#8
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...
November 4, 2016: 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
#9
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
#10
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
#11
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...
October 17, 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
#12
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
#13
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
https://www.readbyqxmd.com/read/27604092/overview-of-the-formulations-and-analogs-in-the-taxanes-story
#14
Farah Yassine, Hala Gali-Muhtasib, Elia Salibi
Taxanes are a family of diterpenes produced by the yews (Taxus genus) that are extensively used in chemotherapy. The family encompasses paclitaxel, docetaxel and the recently added cabazitaxel, all of which were proven to be promising anti-cancer drugs. Due to the over harvesting danger threatening the yew trees as well as the many challenges faced by taxane-based chemotherapy, new formulations, analogs and delivery systems are required. Here, we undertook a structured search of the bibliographical database PubMed for peer-reviewed research papers relying on key words and date of publication and organized the information based on the method of taxane drug delivery...
September 7, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27565690/anti-cd24-nano-targeted-delivery-of-docetaxel-for-the-treatment-of-prostate-cancer
#15
Dhruba J Bharali, Thangirala Sudha, Huadong Cui, Badar M Mian, Shaker A Mousa
Nanoparticle (NP)-mediated, noninvasively targeted and image-guided therapies have potential to improve efficacy and safety of cancer therapeutics. We report synthesis and use of poly(lactide-co-glycolide)-polyethylene glycol (PLGA-PEG) NPs for targeted delivery of docetaxel. We synthesized docetaxel encapsulated NPs conjugated to anti-CD24 (for targeting) and/or an optical probe (for tracking) and evaluated efficacy in a prostate cancer mouse model. We observed preferential accumulation of anti-CD24 conjugated NPs (encapsulating docetaxel) compared to the non-conjugated NPs 24 hours after a single injection into luciferase-expressing PC3M prostate cancer tumor...
August 24, 2016: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/27565002/photoinduced-mild-hyperthermia-and-synergistic-chemotherapy-by-one-pot-synthesized-docetaxel-loaded-poly-lactic-co-glycolic-acid-polypyrrole-nanocomposites
#16
Jie Yuan, Jialu Liu, Qi Song, Dan Wang, Wensheng Xie, Hao Yan, Junfeng Zhou, Yen Wei, Xiaodan Sun, Lingyun Zhao
Mild hyperthermia has shown great advantages when combined with chemotherapy. The development of a multifunctional platform for the integration of mild hyperthermia capability into a drug-loading system is a key issue for cancer multimodality treatment application. Herein, a facile one-pot in situ fabrication protocol of docetaxel (DTX)-loaded poly(lactic-co-glycolic acid) (PLGA)/polypyrrole (PPy) nanocomposites was developed. While the PLGA nanoparticles (NPs) allow efficient drug loading, the PPy nanobulges embedded within the surface of the PLGA NPs, formed by in situ pyrrole polymerization without the introduction of other template agents, can act as ideal mediators for photoinduced mild hyperthermia...
September 21, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27541372/magnetic-drug-targeting-preclinical-in-vivo-studies-mathematical-modeling-and-extrapolation-to-humans
#17
Khuloud T Al-Jamal, Jie Bai, Julie Tzu-Wen Wang, Andrea Protti, Paul Southern, Lara Bogart, Hamed Heidari, Xinjia Li, Andrew Cakebread, Dan Asker, Wafa T Al-Jamal, Ajay Shah, Sara Bals, Jane Sosabowski, Quentin A Pankhurst
A sound theoretical rationale for the design of a magnetic nanocarrier capable of magnetic capture in vivo after intravenous administration could help elucidate the parameters necessary for in vivo magnetic tumor targeting. In this work, we utilized our long-circulating polymeric magnetic nanocarriers, encapsulating increasing amounts of superparamagnetic iron oxide nanoparticles (SPIONs) in a biocompatible oil carrier, to study the effects of SPION loading and of applied magnetic field strength on magnetic tumor targeting in CT26 tumor-bearing mice...
September 14, 2016: Nano Letters
https://www.readbyqxmd.com/read/27539313/docetaxel-loaded-bovine-serum-albumin-nanoparticles-conjugated-docosahexaenoic-acid-for-inhibiting-lung-cancer-metastasis-to-bone
#18
Yuangang Zu, Yan Hu, Xueying Yu, Shougang Jiang
Cancer is one of the severest diseases in the world, and lung cancer is one of the five common cancers which caused thousands of death every year. Moreover, most of the lung cancer patients died because of bone metastasis. This research was conducted with the aim of developing a novel nanoparticles (NPs) of docetaxel (DTX) loaded bovine serum albumin (BSA) conjugated docosahexaenoic acid (DHA) using an emulsion/solvent evaporation method for inhibiting lung cancer metastasis to bone. The in vitro drug release of the DTX-DHA-BSA-NPs showed the nanoparticles released in a sustained and controlled manner that contributed to continual fight against cancer cells...
August 17, 2016: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/27503515/targeted-delivery-of-vitamin-d3-loaded-nanoparticles-to-c6-glioma-cell-line-increased-resistance-to-doxorubicin-epirubicin-and-docetaxel-in-vitro
#19
Nargess Maleklou, Abdolamir Allameh, Bahram Kazemi
In recent years, targeted delivery systems have been used along with combinatorial therapy to decrease drug resistance and increase cancer therapy efficacy. The anti-proliferative effects of vitamin D3 (VD3) on cancerous cells, such as C6 glioma, with active hedgehog pathways raised the question as to whether pre-targeting C6 glioma cells with VD3-loaded nanoparticles (VD3NPs) can enhance the anti-tumor effects of doxorubicin, epirobicin, and docetaxel on this drug-resistant cell line. Here, studying at cellular, nuclear, protein, and gene levels we demonstrated that VD3NP-doxorubicin and VD3NP-epirobicin combinations increased the probability of chemotherapy/radiotherapy resistance and cancer stem cell (CSC) properties in C6 glioma significantly (P < 0...
December 2016: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/27497073/rgd-arg-gly-asp-internalized-docetaxel-loaded-ph-sensitive-liposomes-preparation-characterization-and-antitumor-efficacy-in-vivo-and-in-vitro
#20
Tiantian Zuo, Yuanyuan Guan, Minglu Chang, Fang Zhang, Shanshan Lu, Ting Wei, Wei Shao, Guimei Lin
The goal of this research was to formulate dual-targeting liposomes (RGD/DTX-PSL) that can selectively release loaded contents in a low pH level environment and to actively target to the tumor using liposomes that had surface arginine-glycine-aspartic (RGD) tripeptides. We investigated whether RGD/DTX-PSL could serve as an effective tumor-targeted nanoparticle that is capable of suppressing tumor growth. The results suggest that DTX is released from liposomes faster at pH 5.0 than pH 7.4, demonstrating their pH sensitivity...
November 1, 2016: Colloids and Surfaces. B, Biointerfaces
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