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Nano paclitaxel

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https://www.readbyqxmd.com/read/29103516/1-3%C3%AE-glucan-anchored-paclitaxel-loaded-chitosan-nanocarrier-endows-enhanced-hemocompatibility-with-efficient-anti-glioblastoma-stem-cells-therapy
#1
Pankaj K Singh, Anup K Srivastava, Atul Dev, Babita Kaundal, Subhasree Roy Choudhury, Surajit Karmakar
Recurrence of glioblastoma is one of the major concerns due to its heterogeneous nature and association of Glioma Initiating stem-like Cells (GICs). Nanoparticles mediated delivery of chemotherapeutic agent targeting both cancer and glioma stem cells could provide a solution to recurrent malignancies of the glioblastoma tumor. The approach described here provides enhanced chemotherapeutic potency utilizing 1,3β-Glucan as an outer shell to the chitosan nanoparticles (Cs-NPs) loaded with paclitaxel to prevent hemolysis with, the core-shell nano-structure (Cs-PTX-NP) enabling effective chemotherapy against malignant glioblastoma...
January 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29101359/identification-of-a-peptide-peptide-binding-motif-in-the-coating-of-nab-paclitaxel-nanoparticles-with-clinical-antibodies-bevacizumab-rituximab-and-trastuzumab
#2
John T Butterfield, Hidong Kim, Daniel J Knauer, Wendy K Nevala, Svetomir N Markovic
Antibody directed chemotherapy (ADC) takes advantage of the selectivity of the monoclonal antibody to increase the efficacy of the chemotherapeutic agent, while reducing toxicity. Previously we described three nab-paclitaxel (Abraxane) nanoparticles coated with commercial monoclonal antibodies. Identifying the binding sites responsible for these particles could allow reverse engineering of nab-paclitaxel binding antibodies, creating a modular platform for antibody directed chemotherapeutic nanoparticles. Herein, Biacore surface plasmon resonance is used to identify an antibody binding site, HSA Peptide 40, on human serum albumin with nanomolar affinity for all three monoclonal antibodies...
November 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29031923/deae-dextran-coated-paclitaxel-nanoparticles-act-as-multifunctional-nano-system-for-intranuclear-delivery-to-triple-negative-breast-cancer-through-vegf-and-notch1-inhibition
#3
Anita K Bakrania, Bhavesh C Variya, Lalji V Rathod, Snehal S Patel
Triple negative breast cancer revolution has identified a plethora of therapeutic targets making it apparent that a single target for its treatment could be rare hence creating an urge to develop robust technologies for combination drug therapy. Paclitaxel, hailed as the most significant advancement in chemotherapy faces several underpinnings due to its low solubility and permeability. Advancing research has demonstrated the role of interferons in cancer. DEAE-Dextran, an emerging molecule with evidence of interferon induction was utilized in the present study to develop a nanoformulation in conjugation with paclitaxel to target multiple therapeutic pathways, with diminution of paclitaxel adverse effects and develop a specific targeted nano system...
October 11, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28991298/exosomal-delivery-of-berry-anthocyanidins-for-the-management-of-ovarian-cancer
#4
Farrukh Aqil, Jeyaprakash Jeyabalan, Ashish K Agrawal, Al-Hassan Kyakulaga, Radha Munagala, Lynn Parker, Ramesh C Gupta
Despite optimal diagnosis and early therapeutic interventions, the prognosis for ovarian cancer patients remains dismal because the efficacy of chemotherapy is limited by the development of resistance and off-site toxicity. Berry bioactives indicate preventive and therapeutic activities against various cancer types. Here, we examined the antiproliferative activity of berry anthocyanidins (Anthos) against drug-sensitive (A2780) and drug-resistant (A2780/CP70, OVCA432 and OVCA433) ovarian cancer cells. These drug-resistant ovarian cancer cell lines overexpress p-glycoproteins (PgP) and show >100-fold resistance to the chemotherapeutic drug cisplatin compared to A2780...
October 9, 2017: Food & Function
https://www.readbyqxmd.com/read/28947984/drug-resistance-reversal-in-ovarian-cancer-cells-of-paclitaxel-and-borneol-combination-therapy-mediated-by-peg-pamam-nanoparticles
#5
Liang Zou, Di Wang, Yichen Hu, Chaomei Fu, Wei Li, Liping Dai, Lin Yang, Jinming Zhang
Paclitaxel (PTX) is frequently suffered from multidrug resistance (MDR), resulting in lower chemotherapeutic efficacy and even chemotherapy failure. To combine the P-glycolprotein (P-gp) inhibitor would be a useful strategy to overcome MDR. However, what is needed now is an efficient vehicle to deliver multiple drugs into tumor simultaneously. In this study, PTX and Borneol (BNL), a natural compound with P-gp inhibition effect confirmed in intestinal absorption, were co-loaded in the fabricated PEG-PAMAM nanoparticle (NPs) by a one-step nano-precipitation method with high drug loading efficiency, narrow size distribution and low hemolysis rate...
September 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28933296/inflammation-and-cancer-in-medio-stat-nano
#6
Roberto Molinaro, Claudia Corbo, Megan Livingston, Michael Evangelopoulos, Alessandro Parodi, Christian Boada, Marco Agostini, Ennio Tasciotti
Cancer treatment still remains a challenge due to the several limitations of currently used chemotherapeutics, such as their poor pharmacokinetics, unfavorable chemical properties, as well as inability to discriminate between healthy and diseased tissue. Nanotechnology offered potent tools to overcome these limitations. Drug encapsulation within a delivery system permitted i) to protect the payload from enzymatic degradation/inactivation in the blood stream, ii) to improve the physicochemical properties of poorly water-soluble drugs, like paclitaxel, and iii) to selectively deliver chemotherapeutics to the cancer lesions, thus reducing the off-target toxicity, and promoting the intracellular internalization...
September 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28933201/glioma-and-microenvironment-dual-targeted-nanocarrier-for-improved-antiglioblastoma-efficacy
#7
Xiuzhen Wang, Qing Zhang, Lingyan Lv, Junjie Fu, Yan Jiang, Hongliang Xin, Qizheng Yao
Drug delivery systems based on nanoparticles (nano-DDS) have aroused attentions for the treatment of glioblastoma (GBM), the most malignant brain cancer with a dismal prognosis. However, there are still numerous unmet challenges for traditional nano-DDS, such as the poor nanoparticle penetration, short retention in the GBM parenchyma and low glioma targeting ability. Herein, we used Pep-1 and CREKA peptides to construct a novel multifunctional GBM targeting nano-DDS (PC-NP). Pep-1 was used to overcome the blood-brain tumor barrier (BBTB) and home to glioma cells via interleukin-13 receptor-α2-mediated endocytosis, and CREKA was used to bind to fibrin-fibronectin complexes abundantly expressed in tumor microenvironment for enhanced retention in the GBM...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28932079/nano-albumin-bound-paclitaxel-in-pancreatic-cancer-current-evidences-and-future-directions
#8
REVIEW
Guido Giordano, Massimo Pancione, Nunzio Olivieri, Pietro Parcesepe, Marianna Velocci, Tania Di Raimo, Luigi Coppola, Giuseppe Toffoli, Mario Rosario D'Andrea
Pancreatic cancer (PDAC) is an aggressive and chemoresistant disease, representing the fourth cause of cancer related deaths in western countries. Majority of patients have unresectable, locally advanced or metastatic disease at time of diagnosis and the 5-year survival rate in these conditions is extremely low. For more than a decade gemcitabine has been the cornerstone of metastatic PDAC treatment, although survival benefit was very poor. PDAC cells are surrounded by an intense desmoplastic reaction that may create a barrier to the drugs penetration within the tumor...
August 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28895735/reduction-sensitive-paclitaxel-prodrug-self-assembled-nanoparticles-with-tetrandrine-effectively-promote-synergistic-therapy-against-drug-sensitive-and-multidrug-resistant-breast-cancer
#9
Mengjuan Jiang, Ruoshi Zhang, Yingli Wang, Wenna Jing, Ying Liu, Yan Ma, Bingjun Sun, Menglin Wang, Peizhuo Chen, Hongzhuo Liu, Zhonggui He
Codelivery of multiple drugs with complementary anticancer mechanisms by nanocarriers offers an effective strategy to treat cancers. Herein, conjugation (PTX-SS-VE) of paclitaxel (PTX) to vitamin E succinate (VE) self-assembled nanoparticles were used to load tetrandrine (TET) for combinational treatment against breast carcinoma. The ratio of PTX-SS-VE and TET was optimized. Compared with PTX, the TET/PTX-SS-VE coloaded nanoparticles (TPNPs) demonstrated superior cytotoxicity against both MCF-7 cells and MCF-7/Adr cells...
November 6, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28872851/erythrocyte-membrane-wrapped-ph-sensitive-polymeric-nanoparticles-for-non-small-cell-lung-cancer-therapy
#10
Lipeng Gao, Hao Wang, Lijuan Nan, Ting Peng, Lei Sun, Jinge Zhou, Ye Xiao, Jing Wang, Jihong Sun, Weiyue Lu, Lin Zhang, Zhiqiang Yan, Lei Yu, Yiting Wang
The application of nano drug delivery systems (NDDSs) may enhance the effectiveness of chemotherapeutic drugs in vivo. However, the short blood circulation time and poor drug release profile in vivo are still two problems with them. Herein, by using red blood cell membrane (RBCm) wrapping and pH sensitive technology, we prepared RBCm wrapped pH sensitive poly(l-γ-glutamylcarbocistein)-paclitaxel (PGSC-PTX) nanoparticles (PGSC-PTX@RBCm NPs), to prolong the circulation time in blood and release PTX timely and adequately in acidic tumor environment...
October 18, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28841776/cholera-toxin-subunit-b-enabled-multifunctional-glioma-targeted-drug-delivery
#11
Juan Guan, Zui Zhang, Xuefeng Hu, Yang Yang, Zhilan Chai, Xiaoqin Liu, Jican Liu, Bo Gao, Weiyue Lu, Jun Qian, Changyou Zhan
Glioma is among the most formidable brain cancers due to location in the brain. Cholera toxin subunit B (CTB) is investigated to facilitate multifunctional glioma-targeted drug delivery by targeting the glycosphingolipid GM1 expressed in the blood-brain barrier (BBB), neovasulature, and glioma cells. When modified on the surface of poly(lactic-co-glycolic acid) (PLGA) nanoparticles (CTB-NPs), CTB fully retains its bioactivity after 24 h incubation in the fresh mouse plasma. The formed protein corona (PC) of CTB-NP and plain PLGA nanoparticles (NP) after incubation in plasma is analyzed using liquid chromatography tandem massspectrometry (nano-LC-MS/MS)...
August 25, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28776396/paclitaxel-loaded-nanoparticles-decorated-with-bivalent-fragment-hab18-f-ab-2-and-cell-penetrating-peptide-for-improved-therapeutic-effect-on-hepatocellular-carcinoma
#12
Cheng Jin, Ling Bai, Lemin Lin, Shuangquan Wang, Xiaolong Yin
Hepatocellular carcinoma (HCC) shows low response to most conventional treatment strategies. Therefore, there is an urgent need for new and effective chemotherapies. Nanotechnology gives a dramatic impact on medicine. In this work, paclitaxel loaded nanoparticles (NPs) decorated with bivalent fragment HAb18 F(ab')2 and/or cell penetrating peptide (CPP) were developed and evaluated. NPs were prepared by emulsification-solvent evaporation method and decorated by carbodiimide chemistry. The physicochemical characteristics of NPs (i...
August 4, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28737432/integrin-targeted-nano-sized-polymeric-systems-for-paclitaxel-conjugation-a-comparative-study
#13
Anat Eldar-Boock, Rachel Blau, Claudia Ryppa, Hemda Baabur-Cohen, Ariel Many, María Jesús Vicent, Felix Kratz, Joaquin Sanchis, Ronit Satchi-Fainaro
The generation of rationally designed polymer therapeutics via the conjugation of low molecular weight anti-cancer drugs to water-soluble polymeric nanocarriers aims to improve the therapeutic index. Here, we focus on applying polymer therapeutics to target two cell compartments simultaneously - tumour cells and angiogenic endothelial cells. Comparing different polymeric backbones carrying the same therapeutic agent and targeting moiety may shed light on any correlation between the choice of polymer and the anti-cancer activity of the conjugate...
November 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28729402/wilms-tumor-ncam-expressing-cancer-stem-cells-as-potential-therapeutic-target-for-polymeric-nanomedicine
#14
Ela Markovsky, Einav Vax, Dikla Ben-Shushan, Anat Eldar-Boock, Rachel Shukrun, Eilam Yeini, Iris Barshack, Revital Caspi, Orit Harari-Steinberg, Naomi Pode-Shakked, Benjamin Dekel, Ronit Satchi-Fainaro
Cancer stem cells (CSC) form a specific population within the tumor that has been shown to have self-renewal and differentiation properties, increased ability to migrate and form metastases, and increased resistance to chemotherapy. Consequently, even a small number of cells remaining after therapy can repopulate the tumor and cause recurrence of the disease. CSCs in Wilms tumor, a pediatric renal cancer, were previously shown to be characterized by neural cell adhesion molecule (NCAM) expression. Therefore, NCAM provides a specific biomarker through which the CSC population in this tumor can be targeted...
July 20, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28704056/a-nano-in-nano-polymer-dendrimer-nanoparticle-based-nanosystem-for-controlled-multidrug-delivery
#15
Zongmin Zhao, Song Lou, Yun Hu, Jie Zhu, Chenming Zhang
Codelivery of multiple chemotherapeutics with different action mechanisms is a promising strategy for cancer treatment. In this study, we developed a novel polymer-dendrimer hybrid nanoparticle-based nanosystem for efficient and controlled codelivery of two model chemotherapeutics, doxorubicin (DOX) and paclitaxel (PTX). The nanosystem was characterized to have a nano-in-nano structure with a size of around 150 nm. The model drugs could feasibly be loaded into the nanosystem ratiometrically with high drug-loading contents by controlling the feeding drug ratios...
August 7, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28684737/a-novel-ph-sensitive-carrier-for-the-delivery-of-antitumor-drugs-histidine-modified-auricularia-auricular-polysaccharide-nano-micelles
#16
Yingying Wang, Pingfei Li, Fen Chen, Lianqun Jia, Qihao Xu, Xiumei Gai, Yibin Yu, Yan Di, Zhihong Zhu, Yanyao Liang, Mengqi Liu, Weisan Pan, Xinggang Yang
The study was aimed to design a novel pH-sensitive carrier to deliver antitumor drugs to increase treatment efficiency. Histidine (His)was used to modify auricularia auricular polysaccharide (AAP) by esterification. Proton nuclear magnetic resonance spectrometry was developed to characterize the His-AAP carrier and the His-AAP Paclitaxel (PTX) micelles were prepared by self-assembled organic solvent evaporation. The formation of His-AAP PTX micelles was confirmed by dynamic light-scattering, transmission electron microscopy and high performance liquid chromatography...
July 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28552690/coloaded-nanoparticles-of-paclitaxel-and-piperlongumine-for-enhancing-synergistic-antitumor-activities-and-reducing-toxicity
#17
Qi Liu, Di Zhao, Xiaojie Zhu, Huili Chen, Yue Yang, Jiaqiu Xu, Qing Zhang, Ali Fan, Ning Li, Chaorui Guo, Ying Kong, Yang Lu, Xijing Chen
The purpose of this study was to develop a nanocarrier system for codelivery of paclitaxel (PTX) and piperlongumine (PL) and investigate the therapeutic potential of improving efficacy and reducing toxicity. PTX and PL were formulated into poly lactic-co-glycolic acid and D-α-tocopheryl polyethylene glycol succinate via organic solvent evaporation method. The average diameter was 117.1 ± 1.9 nm, and the zeta potential was -43.25 ± 2.76 mV. PL facilitated the cellular uptake of PTX, and the increased cytotoxicity was similarly displayed...
May 26, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28531834/bioelectrical-impedimetric-sensor-for-single-cell-analysis-based-on-nanoroughened-quartz-substrate-suitable-for-cancer-therapeutic-purposes
#18
Milad Gharooni, Mohammad Abdolahad
Single cells analysis has been interested in recent decade. Apart from scientific benefits to achieve new biological phenomena in cell study, many diagnostic and therapeutic protocols in non-communicable diseases were introduced by single cell analysis. Moreover, non-invasive methods to maintain the investigated cell for time dependent monitoring has been widely studied because of its importance in some crucial cases such as drug resistance in cancer. Bioelectrical monitoring is one of such methods Although the procedures reported based on electrical probing might not induce cell disruption, indirect connection between recording electrodes and cell membrane (mostly in microfluidic approaches) reduced the quality of response and limited the precision of the results...
May 15, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28530538/qualitative-estimation-of-drug-entrapment-efficiency-in-polymeric-nano-micelles-using-dpd
#19
Farzin Hadizadeh, Jamal Shamsara
BACKGROUND: Dissipative particle dynamics (DPD) is a simulation method that one of its applications is in the field of pharmaceutical science and drug delivery. OBJECTIVE: DPD is employed to study morphology and some other characteristics of polymeric nano-micelles. Two systems were considered in this study: system A which includes curcumin, Polycaprolactone (PCL), Polyethylene glycol (PEG) and water beads and system B which includes paclitaxel, Polylactic acid (PLA), PEG and water beads...
May 22, 2017: Pharmaceutical Nanotechnology
https://www.readbyqxmd.com/read/28482569/development-of-biodegradable-plga-nanoparticles-surface-engineered-with-hyaluronic-acid-for-targeted-delivery-of-paclitaxel-to-triple-negative-breast-cancer-cells
#20
Brenda Brenner S Cerqueira, Annette Lasham, Andrew N Shelling, Raida Al-Kassas
This study aimed at development of poly (lactic-co-glycolic acid) (PLGA) nanoparticles embedded with paclitaxel and coated with hyaluronic acid (HA-PTX-PLGA) to actively target the drug to a triple negative breast cancer cells. Nanoparticles were successfully fabricated using a modified oil-in-water emulsion method. The effect of various formulations parameters on the physicochemical properties of the nanoparticles was investigated. SEM imaging confirmed the spherical shape and nano-scale size of the nanoparticles...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
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