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Nanomedicine

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https://www.readbyqxmd.com/read/28102776/targeted-delivery-of-cisplatin-to-tumor-xenografts-via-the-nanoparticle-component-of-nano-diamino-tetrac
#1
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
AIM: Nano-diamino-tetrac (NDAT) targets a receptor on integrin αvβ3; αvβ3 is generously expressed by cancer cells and dividing endothelial cells and to a small extent by nonmalignant cells. The tetrac (tetraiodothyroacetic acid) of NDAT is covalently bound to a poly(lactic-co-glycolic acid) nanoparticle that encapsulates anticancer drugs. We report NDAT delivery efficiency of cisplatin to agent-susceptible urinary bladder cancer xenografts. MATERIALS & METHODS: Cisplatin-loaded NDAT (NDAT-cisplatin) was administered to xenograft-bearing nude mice...
January 19, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28097925/improving-cancer-imaging-with-magnetic-nanoparticles-where-are-we-now
#2
Rainer Tietze, Christoph Alexiou
No abstract text is available yet for this article.
January 18, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28093960/journal-watch-diagnostic-nanoparticles
#3
Marina Pöttler, Iwona Cicha, Stefan Lyer, Christina Janko, Ralf P Friedrich, Christoph Alexiou
No abstract text is available yet for this article.
January 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28093952/nanocarriers-protecting-toward-an-intestinal-pre-uptake-metabolism
#4
Wongsakorn Suchaoin, Andreas Bernkop-Schnürch
Pre-uptake metabolism within the GI tract is responsible for the poor oral bioavailability of numerous drugs. As nanocarriers function as a 'shield', protecting incorporated drugs from enzymatic attack, there is an increasing interest in utilizing them as a tool for overcoming drug degradation. Degradation of carriers resulting in the release of incorporated drugs, mucus permeation, enzyme inhibitory properties and their toxicity are crucial factors that must be taken into account when designing proper nanocarriers...
January 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28093948/design-and-evaluation-of-a-stearylated-multicomponent-peptide-sirna-nanocomplex-for-efficient-cellular-sirna-delivery
#5
Yu Wan, Peter M Moyle, Pei Z Gn, Istvan Toth
AIM: To develop a new synthetic peptide-based nanoparticulate siRNA delivery system. MATERIALS & METHODS: DEN-K(GALA)-TAT-K(STR) was generated by incorporating stearic acid into a multicomponent peptide (DEN-K(GALA)-TAT), containing a cationic poly-L-lysine dendron, an endosome-disrupting peptide GALA and a cell-penetrating peptide TAT(48-60). Its physicochemical characteristics, size, toxicity, cellular uptake and gene knockdown activity of the peptide/siRNA complexes were studied...
January 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28093944/healing-efficacy-of-fracture-targeted-gsk3%C3%AE-inhibitor-loaded-micelles-for-improved-fracture-repair
#6
Stewart A Low, Chris V Galliford, Yava L Jones-Hall, Jyoti Roy, Jiyuan Yang, Philip S Low, Jindřich Kopeček
AIM: To evaluate the fracture healing capabilities of a GSK3β inhibitor, 6-bromoindirubin-3'-oxime, coupled with an aspartic acid octapeptide in a micellar delivery system. MATERIALS & METHODS: The efficacy of the intravenously administered micelles to accelerate healing of femoral fracture in mice was evaluated. Micro-computed tomography analysis was employed to obtain bone density, total volume, relative volume, trabecular thickness and trabecular spacing. RESULTS: Both fracture bone mineral density and volume were significantly higher in the micelle treatment groups when compared with controls...
January 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28093942/self-assembling-peptide-nanostructures-on-aligned-poly-lactide-co-glycolide-nanofibers-for-the-functional-regeneration-of-sciatic-nerve
#7
Manasa Nune, Anuradha Subramanian, Uma Maheswari Krishnan, Suraj Sasidhara Kaimal, Swaminathan Sethuraman
AIM: Regeneration of functional peripheral nerve tissue at critical-sized defect requires extracellular matrix analogs impregnated with appropriate biosignals to regulate the cell fate process and subsequent tissue progression. The aim of the study was to develop electrospun aligned nanofibers as architectural analogs integrated with RADA16-I-BMHP1 as biofunctional peptides. MATERIALS & METHODS: Aligned poly(lactide-co-glycolide) (PLGA)-RADA16-I-BMHP1 nanofibers were fabricated and characterized for their in vitro potential using rat Schwann cell line and in vivo potential using a 10 mm sciatic nerve transection rat model...
January 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28093941/novel-surface-engineered-solid-lipid-nanoparticles-of-rosuvastatin-calcium-for-low-density-lipoprotein-receptor-targeting-a-quality-by-design-driven-perspective
#8
Sarwar Beg, Sanyog Jain, Varun Kushwah, Gurjit Kaur Bhatti, Premjeet Singh Sandhu, O P Katare, Bhupinder Singh
AIM: The present studies describe Quality by Design-oriented development and characterization of surface-engineered solid lipid nanoparticles (SLNs) of rosuvastatin calcium for low density lipoprotein-receptor targeting. MATERIALS & METHODS: SLNs were systematically prepared employing Compritol 888 and Tween-80. Surface modification of SLNs was accomplished with Phospholipon 90G and DSPE-mPEG-2000 as the ligands for specific targeting to the low density lipoprotein-receptors...
January 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28093940/self-targeted-salinomycin-loaded-dspe-peg-methotrexate-nanomicelles-for-targeting-both-head-and-neck-squamous-cell-carcinoma-cancer-cells-and-cancer-stem-cells
#9
Minhui Zhu, Shicai Chen, Libo Hua, Caiyun Zhang, Mengjie Chen, Donghui Chen, Yinmei Dong, Yingying Zhang, Meng Li, Xianmin Song, Huaiwen Chen, Hongliang Zheng
AIM: To target both head and neck squamous cell carcinoma (HNSCC) cells and cancer stem cells (CSCs) by salinomycin-loaded DSPE-PEG-MTX (synthesized using DSPE-PEG2000-NH2 and methotrexate) nanomicelles (M-SAL-MTX). MATERIALS & METHODS: The characterization, antitumor activity and mechanism of M-SAL-MTX were evaluated. RESULTS & CONCLUSION: M-SAL-MTX showed enhanced inhibitory effect toward both HNSCC CSCs and non-CSCs compared with a single treatment of methotrexate and salinomycin...
January 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28093939/do-catalytic-nanoparticles-offer-an-improved-therapeutic-strategy-to-combat-dental-biofilms
#10
Lizeng Gao, Hyun Koo
No abstract text is available yet for this article.
January 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28093937/unmet-needs-in-developing-nanoparticles-for-precision-medicine
#11
Simo Schwartz
No abstract text is available yet for this article.
January 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28093036/combining-nanoscale-magnetic-nimodipine-liposomes-with-magnetic-resonance-image-for-parkinson-s-disease-targeting-therapy
#12
Bingshuo Ji, Meili Wang, Dawei Gao, Shanshan Xing, Lei Li, Lanxiang Liu, Min Zhao, Ximing Qi, Kun Dai
AIM: To enhance drug targeting and blood-brain barrier penetration for Parkinson's disease (PD), a novel nanoscale magnetic nimodipine (NMD) delivery system was designed and prepared. MATERIALS & METHODS: The PD rats were established and treated with free NMD or Fe3O4-modified NMD liposomes (Fe3O4-NMD-lips). Then, factional anisotropy values were measured by MRI to evaluate therapy efficacy. RESULTS: Fe3O4-NMD-lips showed the best neuroprotective effect, and the NMD concentration of lesions was 2...
January 17, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28078967/the-glycocalyx-regulates-the-uptake-of-nanoparticles-by-human-endothelial-cells-in-vitro
#13
Leonhard Möckl, Stephanie Hirn, Adriano A Torrano, Bernd Uhl, Christoph Bräuchle, Fritz Krombach
AIM: To assess the role of the endothelial glycocalyx (eGCX) for the uptake of nanoparticles by endothelial cells. METHODS: The expression of the eGCX on cultured human umbilical vein endothelial cells was determined by immunostaining of heparan sulfate. Enzymatic degradation of the eGCX was achieved by incubating the cells with eGCX-shedding enzymes. The uptake of 50-nm polystyrene nanospheres was quantified by confocal microscopy. RESULTS: Human umbilical vein endothelial cells expressed a robust eGCX when cultured for 10 days...
January 12, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28078954/nanovesicle-delivery-to-the-liver-via-retinol-binding-protein-and-platelet-derived-growth-factor-receptors-how-targeting-ligands-affect-biodistribution
#14
Ching-Yun Hsu, Chun-Han Chen, Ibrahim A Aljuffali, You-Shan Dai, Jia-You Fang
AIM: Nanovesicles (NVs) conjugating ligands can deliver to the specific nidus. We designed a nanosystem targeting the injectable niosomes to liver for examining biodistribution. METHODOLOGY: Vitamin A and antiplatelet-derived growth factor receptor antibody were employed as the ligands to be taken by hepatic stellate cells. The biodistribution in rats was visualized by bioimaging. RESULTS: A significant liver accumulation was detected for antibody-embedded NVs at 2 h after dosing...
January 12, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28078952/recent-advances-in-green-nanoparticulate-systems-for-drug-delivery-efficient-delivery-and-safety-concern
#15
Pik-Ling Lam, Wai-Yeung Wong, Zhaoxiang Bian, Chung-Hin Chui, Roberto Gambari
Nanotechnology manipulates therapeutic agents at the nanoscale for the development of nanomedicines. However, there are current concerns over nanomedicines, mainly related to the possible toxicity of nanomaterials used for health medications. Due to their small size, they can enter the human body more readily than larger sized particles. Green chemistry encompasses the green synthesis of drug-loaded nanoparticles by reducing the use of hazardous materials in the synthesis process, thus reducing the adverse health impacts of pharmaceutics...
January 12, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28078950/magnetic-nanoparticles-based-drug-and-gene-delivery-systems-for-the-treatment-of-pulmonary-diseases
#16
Ibrahim M El-Sherbiny, Nancy M Elbaz, Mohammed Sedki, Abdulaziz Elgammal, Magdi H Yacoub
Magnetic nanoparticles (MNPs) have gained much attention due to their unique properties such as biocompatibility and biodegradability as well as magnetic and heat-medicated characteristics. Due to these inherent properties, MNPs have been widely used in various biomedical applications including targeted drug delivery and hyperthermia-based therapy. Hyperthermia is a promising approach for the thermal activation therapy of several diseases, including pulmonary diseases. Additionally, due to their large loading capacity and controlled release ability, several MNP-based drug delivery systems have been emerged for treatment of cystic fibrosis and lung cancer...
January 12, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28078949/nature-inspired-dna-switches-applications-in-medicine
#17
Arnaud Desrosiers, Alexis Vallée-Bélisle
No abstract text is available yet for this article.
January 12, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28078943/how-can-we-apply-the-use-of-surface-enhanced-raman-scattering-nanoparticles-in-tumor-imaging
#18
Moritz F Kircher
No abstract text is available yet for this article.
January 12, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28000542/cerium-oxide-nanoparticles-the-regenerative-redox-machine-in-bioenergetic-imbalance
#19
Ilaria Pezzini, Attilio Marino, Serena Del Turco, Claudia Nesti, Stefano Doccini, Valentina Cappello, Mauro Gemmi, Paola Parlanti, Filippo M Santorelli, Virgilio Mattoli, Gianni Ciofani
AIM: Owing to their catalytic properties as reactive oxygen species scavengers, cerium oxide nanoparticles (nanoceria) have become an extremely promising candidate for medical applications, especially in the treatment of diseases where oxidative stress has been proposed as one of the main pathogenesis factors. MATERIALS & METHODS: In this work, nanoceria antioxidant power has been tested in primary cultured skin fibroblasts, derived from healthy individuals, by evaluating the mitochondrial function both in basal condition and after an oxidative insult...
December 21, 2016: Nanomedicine
https://www.readbyqxmd.com/read/27882809/mechanisms-of-cell-uptake-inflammatory-potential-and-protein-corona-effects-with-gold-nanoparticles
#20
Yang Li, Nancy A Monteiro-Riviere
AIM: To assess inflammation, cellular uptake and endocytic mechanisms of gold nanoparticles (AuNP) in human epidermal keratinocytes with and without a protein corona. MATERIALS & METHODS: Human epidermal keratinocytes were exposed to 40 and 80 nm AuNP with lipoic acid, polyethylene glycol (PEG) and branched polyethyleneimine (BPEI) coatings with and without a protein corona up to 48 h. Inhibitors were selected to characterize endocytosis. RESULTS & CONCLUSION: BPEI-AuNP showed the greatest uptake, while PEG-AuNP had the least...
November 24, 2016: Nanomedicine
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