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Nano paclitaxel

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https://www.readbyqxmd.com/read/28531834/bioelectrical-impedimetric-sensor-for-single-cell-analysis-based-on-nanoroughened-quartz-substrate-suitable-for-cancer-therapeutic-purposes
#1
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
#2
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
#3
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
https://www.readbyqxmd.com/read/28423731/a-multifunctional-lipid-nanoparticle-for-co-delivery-of-paclitaxel-and-curcumin-for-targeted-delivery-and-enhanced-cytotoxicity-in-multidrug-resistant-breast-cancer-cells
#4
Jong-Suep Baek, Cheong-Weon Cho
The objective of the work was to develop a multifunctional nanomedicine based on a folate-conjugated lipid nanoparticles loaded with paclitaxel and curcumin. The novel system combines therapeutic advantageous of efficient targeted delivery via folate and timed-release of curcumin and paclitaxel via 2-hydroxypropyl-ß-cyclodextrin, thereby overcoming multidrug resistance in breast cancer cells (MCF-7/ADR). The faster release of curcumin from the folate-conjugated curcumin and paclitaxel-loaded lipid nanoparticles enables sufficient p-glycoprotein inhibition, which allows increased cellular uptake and cytotoxicity of paclitaxel...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28417924/novel-nano-therapeutic-approach-actively-targets-human-ovarian-cancer-stem-cells-after-xenograft-into-nude-mice
#5
Amoura Abou-ElNaga, Ghada Mutawa, Ibrahim M El-Sherbiny, Hassan Abd-ElGhaffar, Ahmed A Allam, Jamaan Ajarem, Shaker A Mousa
The power of tumorigenesis, chemo-resistance and metastasis in malignant ovarian tumors resides in a tiny population of cancer cells known as ovarian cancer stem cells (OCSCs). Developing nano-therapeutic targeting of OCSCs is considered a great challenge. The potential use of poly(lactic-co-glycolic acid) nanoparticles (PLGA NPs) was investigated as a drug delivery system for paclitaxel (PTX) against OCSCs in vitro and in vivo. PTX-loaded PLGA NPs were prepared by an emulsion solvent evaporation method, supported by incorporation of folic acid (FA) as the ligand...
April 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28378801/antibody-targeted-paclitaxel-loaded-nanoparticles-for-the-treatment-of-cd20-b-cell-lymphoma
#6
Wendy K Nevala, John T Butterfield, Shari L Sutor, Daniel J Knauer, Svetomir N Markovic
We developed a nano-antibody targeted chemotherapy (nATC) delivery strategy in which tumor specific and clinically relevant antibodies (rituximab, anti-CD20) are non-covalently bound to the albumin scaffold of nab-paclitaxel (ABX). We define the nanoparticle formed when the 2 drugs are bound (AR160). The newly created nATC retains the cytotoxicity of ABX and CD20 affinity of rituximab in vitro. We describe the binding characteristics of the ABX and rituximab in AR160 using peptide mapping/Biacore approach. Flow-based methods, including ImageStream and nanoparticle tracking, were used to characterize the AR160 particles in vitro...
April 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28362124/redox-sensitive-peg-controlled-octaarginine-and-targeting-peptide-co-modified-nanostructured-lipid-carriers-for-enhanced-tumour-penetrating-and-targeting-in-vitro-and-in-vivo
#7
Huixin Wang, Mingshuang Sun, Dongyang Li, Xinggang Yang, Cuiyan Han, Weisan Pan
To strengthen the anti-tumour efficacy and weaken the side effects, a nano targeted drug delivery system was constructed. The nanostructured lipid carriers (NLCs) were prepared by the melt-emulsification method. Modified with the octaarginine, thiolytic cleavable polyethylene glycol (PEG) and targeting peptide simultaneously on the surface, this multifunctional NLC could not only actively target to tumour tissues, but also control the cell penetration effect of the octaarginine easily by a safe reducing agent l-cysteine (l-Cys)...
March 31, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28257998/the-battle-of-nano-paclitaxel
#8
REVIEW
Alexandros Marios Sofias, Michael Dunne, Gert Storm, Christine Allen
Paclitaxel (PTX) is one of the three most widely used chemotherapeutic agents, together with doxorubicin and cisplatin, and is first or second line treatment for several types of cancers. In 2000, Taxol, the conventional formulation of PTX, became the best selling cancer drug of all time with annual sales of 1.6 billion. In 2005, the introduction of the albumin-based formulation of PTX, known as Abraxane, ended Taxol's monopoly of the PTX market. Abraxane's ability to push the Taxol innovator and generic formulations aside attracted fierce competition amongst competitors worldwide to develop their own unique, new and improved formulation of PTX...
February 28, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28243091/targeted-delivery-of-paclitaxel-and-doxorubicin-to-cancer-xenografts-via-the-nanoparticle-of-nano-diamino-tetrac
#9
Thangirala Sudha, Dhruba J Bharali, Murat Yalcin, Noureldien He Darwish, Melis Debreli Coskun, Kelly A Keating, Hung-Yun Lin, Paul J Davis, Shaker A Mousa
The tetraiodothyroacetic acid (tetrac) component of nano-diamino-tetrac (NDAT) is chemically bonded via a linker to a poly(lactic-co-glycolic acid) nanoparticle that can encapsulate anticancer drugs. Tetrac targets the plasma membrane of cancer cells at a receptor on the extracellular domain of integrin αvβ3. In this study, we evaluate the efficiency of NDAT delivery of paclitaxel and doxorubicin to, respectively, pancreatic and breast cancer orthotopic nude mouse xenografts. Intra-tumoral drug concentrations were 5-fold (paclitaxel; P<0...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28181464/physicochemical-characterization-of-chitosan-hyaluronan-coated-solid-lipid-nanoparticles-for-the-targeted-delivery-of-paclitaxel-a-proof-of-concept-study-in-breast-cancer-cells
#10
Javier Campos, Manuel Varas-Godoy, Ziyad Samir Haidar
AIM: To investigate the potential of modified solid lipid nanoparticles (SLN) for the delivery of paclitaxel (PAX). MATERIALS & METHODS: SLN loaded with PAX were prepared via modified high-pressure hot homogenization. Formulation parameters were optimized to obtain a high-quality delivery system. SLN cores were coated, layer-by-layer, with a chitosan and hyaluronan (HA) shell. Selectivity toward HA receptors was tested in a breast cancer cell line, MCF-7. RESULTS: Stable and reproducible nano-sized and negatively charged nanoparticles resulted...
February 9, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28140336/cell-like-features-imprinted-in-the-physical-nano-and-micro-topography-of-the-environment-modify-the-responses-to-anti-cancer-drugs-of-endometrial-cancer-cells
#11
Li Hui Tan, Peter H Sykes, Maan M Alkaisi, John J Evans
Topographical features of cells at nanometre resolution were fabricated in polystyrene. The study investigated the effect of physical topography on the response of cancer cells to the common anticancer drugs, paclitaxel and doxorubicin. Human endometrial cancer cells (Ishikawa) were incubated on substrates containing cell-like features that had been fabricated using our bioimprint methodology to create moulds of cells with positive (convex) and negative (concave) topography. Control cultures were performed on flat substrates...
February 14, 2017: Biofabrication
https://www.readbyqxmd.com/read/28112512/enzyme-sensitive-and-amphiphilic-pegylated-dendrimer-paclitaxel-prodrug-based-nanoparticles-for-enhanced-stability-and-anticancer-efficacy
#12
Ning Li, Hao Cai, Lei Jiang, Jiani Hu, Ashika Bains, Jesse Hu, Qiyong Gong, Kui Luo, Zhongwei Gu
In this study, we prepared a smart polymeric vehicle for the hydrophobic drug paclitaxel (PTX) that allowed a maximum steady-state circulation and a fast intracellular release in tumors. PTX was linked to the Janus PEGylated (PEG = poly(ethylene glycol)) peptide dendrimer via an enzyme-sensitive linker glycylphenylalanylleucylglycine tetrapeptide by efficient click reaction, resulting in Janus dendritic prodrug with 20.9% PTX content. The prodrug self-assembled into nanoscale particles with appropriate nanosizes, compact morphology, and negative surface charge...
March 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28069192/acoustic-cavitation-induced-generation-of-stabilizer-free-extremely-stable-reduced-graphene-oxide-nanodispersion-for-efficient-delivery-of-paclitaxel-in-cancer-cells
#13
Renu Geetha Bai, Kasturi Muthoosamy, Fiona Natalia Shipton, Sivakumar Manickam
Graphene is one of the highly explored nanomaterials due to its unique and extraordinary properties. In this study, by utilizing a hydrothermal reduction method, graphene oxide (GO) was successfully converted to reduced graphene oxide (RGO) without using any toxic reducing agents. Following this, with the use of ultrasonic cavitation, profoundly stable few layer thick RGO nanodispersion was generated without employing any stabilizers or surfactants. During ultrasonication, shockwaves from the collapse of bubbles cause a higher dispersing energy to the graphene nanosheets which surpass the forces of Van der Waal's and π-π stacking and thus pave the way to form a stable aqueous nanodispersion of graphene...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28060268/a-facile-and-efficient-approach-for-the-production-of-reversible-disulfide-cross-linked-micelles
#14
Yuanpei Li, Gaurav Bharadwaj, Joyce S Lee
Nanomedicine is an emerging form of therapy that harnesses the unique properties of particles that are nanometers in scale for biomedical application. Improving drug delivery to maximize therapeutic outcomes and to reduce drug-associated side effects are some of the cornerstones of present-day nanomedicine. Nanoparticles in particular have found a wide application in cancer treatment. Nanoparticles that offer a high degree of flexibility in design, application, and production based on the tumor microenvironment are projected to be more effective with rapid translation into clinical practice...
December 23, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28038747/efficient-delivery-of-paclitaxel-into-asgpr-over-expressed-cancer-cells-using-reversibly-stabilized-multifunctional-pullulan-nanoparticles
#15
Liping Huang, Yutong Wang, Xiang Ling, Birendra Chaurasiya, Chen Yang, Yunai Du, Jiasheng Tu, Yerong Xiong, Chunmeng Sun
Core-crosslinked pullulan nanoparticles (Pull-LA-CLNPs) were synthesized by the reduction-sensitive strategy for paclitaxel (PTX) delivery. Pull-LA-CLNPs showed high stability against extensive dilution, high salt concentration and organic solvent. In vitro drug release study showed that PTX release from Pull-LA-NPs at pH 7.4 and 5.4 was significantly influenced by addition of DTT. In cytotoxicity assay, PTX loaded Pull-LA-CLNPs showed a low IC50 at 0.51μg/mL. Asialoglycoprotein receptor (ASGPR) competitive inhibition and intracellular distribution studies performed by flow cytometer, fluorescence microscope and confocal laser scanning microscopy (CLSM) showed that Pull-LA-NPs could be efficiently taken up by the cells via ASGPR-mediated endocytosis and mainly distributed in cytoplasm...
March 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28036254/targeted-delivery-of-nano-ptx-to-the-brain-tumor-associated-macrophages
#16
Lei Zou, Youhua Tao, Gregory Payne, Linh Do, Tima Thomas, Juan Rodriguez, Huanyu Dou
Nanoparticles containing mixed lipid monolayer shell, biodegradable polymer core and rabies virus glycoprotein (RVG) peptide as brain targeting ligand, were developed for brain targeted delivery of paclitaxel (PTX) to treat malignant glioma. RVG conjugated PTX loaded NPs (RVG-PTX-NPs) had the desirable size (~140 nm), narrow size distribution and spherical shape. RVG-PTX-NPs showed poor uptake by neurons and selective targeting to the brain tumor associated macrophages (TAMs) with controlled release and tumor specific toxicity...
January 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28024581/development-and-evaluation-of-targeting-ligands-surface-modified-paclitaxel-nanocrystals
#17
Jeong Sun Sohn, Doo-Soo Yoon, Jun Youn Sohn, Jeong-Sook Park, Jin-Seok Choi
To overcome the toxicity of excipient or blank nanoparticles for drug delivery nano-system, the surface modified paclitaxel nanocrystals (PTX-NC) have been developed. PTX-NCs were prepared by nano-precipitation method. The surface of PTX-NCs were modified by grafting with apo-transferrin (Tf) or hyaluronic acid (HA). The physical properties of PTX-NCs were evaluated by field emission scanning electron microscope (FE-SEM), zeta-sizer, zeta-potential, differential scanning calorimetry (DSC) and Fourier transform infrared (FT-IR) spectrometry...
March 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27976583/enhanced-antiglioma-efficacy-of-ultrahigh-loading-capacity-paclitaxel-prodrug-conjugate-self-assembled-targeted-nanoparticles
#18
Yan Jiang, Xiuzhen Wang, Xin Liu, Wei Lv, Hongjuan Zhang, Mingwan Zhang, Xinrui Li, Hongliang Xin, Qunwei Xu
Glioblastoma multiforme (GBM) presents one of the most lethal brain tumor with a dismal prognosis. And nanodrug delivery system (nano-DDS) have raised a lot of concern, while the conventional nanoformulations addressed many limitations, especially the low drug loading capacity and poor stability in vivo. Herein, we proposed PTX prodrug (PTX-SS-C18) conjugate self-assembled nanoparticles (PSNPs) functionalized with Pep-1, glioma homing peptide, to overcome the blood brain tumor barrier (BBTB) via interleukin 13 receptor α2 (IL-13Rα2)-mediated endocytosis for targeting GMB...
January 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27942215/synergistic-locoregional-chemoradiotherapy-using-a-composite-liposome-in-gel-system-as-an-injectable-drug-depot
#19
Shruti GuhaSarkar, Kamal Pathak, Niyati Sudhalkar, Prachi More, Jayant Sastri Goda, Vikram Gota, Rinti Banerjee
The use of radiosensitizers in clinical radiotherapy is limited by systemic toxicity. The biopolymeric, biodegradable, injectable liposome-in-gel-paclitaxel (LG-PTX) system was developed for regional delivery of the radiosensitizer paclitaxel (PTX), and its efficacy was evaluated with concurrent fractionated radiation. LG-PTX is composed of nano-sized drug-loaded fluidizing liposomes, which are incorporated into a porous biodegradable gellan hydrogel. This allows enhanced drug permeation while maintaining a localization of the drug depot...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27924295/dataset-on-the-physical-characterization-of-biopolymer-coated-magnetic-nanoparticles
#20
Shazia Bano, Muhammad Afzal
The data presented in this article is related to the research article entitled "Paclitaxel loaded magnetic nanocomposites with folate modified chitosan/carboxymethyl surface; a vehicle for imaging and targeted drug delivery" (S. Bano, M. Afzal, M.M. Waraich, K. Alamgir, S. Nazir, 2016) [1]. It contains the absorbance spectra, band gap energies of pure nickel-ferrite nano cores (NFs), and calibration curve of Paclitaxel. Thermal stability analysis of pure NFs, chitosan (CS) and carboxymethyl cellulose (CMC)-conjugated NFs samples is also included in the data...
December 2016: Data in Brief
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