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https://www.readbyqxmd.com/read/29678675/towards-tailored-management-of-malignant-brain-tumors-with-nanotheranostics
#1
REVIEW
Juan Aparicio-Blanco, Ana-Isabel Torres-Suárez
Malignant brain tumors still represent an unmet medical need given their rapid progression and often fatal outcome within months of diagnosis. Given their extremely heterogeneous nature, the assumption that a single therapy could be beneficial for all patients is no longer plausible. Hence, early feedback on drug accumulation at the tumor site and on tumor response to treatment would help tailor therapies to each patient's individual needs for personalized medicine. In this context, at the intersection between imaging and therapy, theranostic nanomedicine is a promising new technique for individualized management of malignant brain tumors...
April 17, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29504283/graphene-materials-in-antimicrobial-nanomedicine-current-status-and-future-perspectives
#2
REVIEW
Hüseyin Enis Karahan, Christian Wiraja, Chenjie Xu, Jun Wei, Yilei Wang, Liang Wang, Fei Liu, Yuan Chen
Graphene materials (GMs), such as graphene, graphene oxide (GO), reduced GO (rGO), and graphene quantum dots (GQDs), are rapidly emerging as a new class of broad-spectrum antimicrobial agents. This report describes their state-of-the-art and potential future covering both fundamental aspects and biomedical applications. First, the current understanding of the antimicrobial mechanisms of GMs is illustrated, and the complex picture of underlying structure-property-activity relationships is sketched. Next, the different modes of utilization of antimicrobial GMs are explained, which include their use as colloidal dispersions, surface coatings, and photothermal/photodynamic therapy agents...
March 5, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29447002/recent-treatment-modalities-for-cardiovascular-diseases-with-a-focus-on-stem-cells-aptamers-exosomes-and-nanomedicine
#3
Rahul Mittal, Vasanti M Jhaveri, Hannah S McMurry, Sae-In Samantha Kay, Kyle J Sutherland, Lin Nicole, Jeenu Mittal, Rahul Dev Jayant
Cardiovascular diseases (CVDs) are the leading cause of morbidity and mortality worldwide. Due to the significant impact of CVD on humans, there is a need to develop novel treatment modalities tailored to major classes of cardiac diseases including hypertension, coronary artery disease, cardiomyopathies, arrhythmias, valvular disease and inflammatory diseases. In this article, we discuss recent advancements regarding development of therapeutic strategies based on stem cells, aptamers, exosomes, drug-eluting and dissolvable stents, immunotherapy and nanomedicine for the treatment of CVD...
February 15, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29355619/nanotherapeutics-in-oral-and-parenteral-drug-delivery-key-learnings-and-future-outlooks-as-we-think-small
#4
REVIEW
Puneet Tyagi, J Anand Subramony
Nanotechnology ushered the field of medicine in to a new era. Miniaturization, increased surface area, and the unique physicochemical properties in the nano dimension were explored for new applications. Pharmaceutical industry picked up the technology and early success came fast for oral drug delivery through improvement in dissolution properties of the active molecules. Many products were launched using the nanocrystal technology on the oral side. Further development of polymeric nanoparticles led to wide spread research of nanocarriers for parenteral delivery...
February 28, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29088978/the-biological-challenges-and-pharmacological-opportunities-of-orally-administered-nanomedicine-delivery
#5
Darren Michael Moss, Paul Curley, Hannah Kinvig, Clare Hoskins, Andrew Owen
Nano-scale formulations are being developed to improve the delivery of orally administered medicines, and the interactions between nanoformulations and the gastrointestinal luminal, mucosal and epithelial environment is currently being investigated. The mucosal surface of the gastrointestinal tract is capable of trapping and eliminating large particles and pathogens as part of the natural defences of the body, it is becoming clearer that nanoformulation properties such as particle size, charge, and shape, as well as mucous properties such as viscoelasticity, thickness, density, and turn-over time are all relevant to these interactions...
March 2018: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29062065/a-chloroquine-induced-macrophage-preconditioning-strategy-for-improved-nanodelivery
#6
Joy Wolfram, Sara Nizzero, Haoran Liu, Feng Li, Guodong Zhang, Zheng Li, Haifa Shen, Elvin Blanco, Mauro Ferrari
Site-specific localization is critical for improving the therapeutic efficacy and safety of drugs. Nanoparticles have emerged as promising tools for localized drug delivery. However, over 90% of systemically injected nanocarriers typically accumulate in the liver and spleen due to resident macrophages that form the mononuclear phagocyte system. In this study, the clinically approved antimalarial agent chloroquine was shown to reduce nanoparticle uptake in macrophages by suppressing endocytosis. Pretreatment of mice with a clinically relevant dose of chloroquine substantially decreased the accumulation of liposomes and silicon particles in the mononuclear phagocyte system and improved tumoritropic and organotropic delivery...
October 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28926225/bridging-bio-nano-science-and-cancer-nanomedicine
#7
Mattias Björnmalm, Kristofer J Thurecht, Michael Michael, Andrew M Scott, Frank Caruso
The interface of bio-nano science and cancer medicine is an area experiencing much progress but also beset with controversy. Core concepts of the field-e.g., the enhanced permeability and retention (EPR) effect, tumor targeting and accumulation, and even the purpose of "nano" in cancer medicine-are hotly debated. In parallel, considerable advances in neighboring fields are occurring rapidly, including the recent progress of "immuno-oncology" and the fundamental impact it is having on our understanding and the clinical treatment of the group of diseases collectively known as cancer...
October 24, 2017: ACS Nano
https://www.readbyqxmd.com/read/28875999/a-comparison-of-the-human-and-mouse-protein-corona-profiles-of-functionalized-sio2-nanocarriers
#8
A Solorio-Rodríguez, V Escamilla-Rivera, M Uribe-Ramírez, A Chagolla, R Winkler, C M García-Cuellar, A De Vizcaya-Ruiz
Nanoparticles are a promising cancer therapy for their use as drug carriers given their versatile functionalization with polyethylene glycol and proteins that can be recognized by overexpressed receptors in tumor cells. However, it has been suggested that in biological fluids, proteins cover nanoparticles, which gives the proteins a biological identity that could be responsible for unexpected biological responses: the so-called protein corona. A relevant biological event that is usually ignored in protein-corona formation is the interspecies differences in protein binding, which can be involved in the discrepancies observed in preclinical studies and the nanoparticle safety and efficiency...
September 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28814137/pegylated-crosslinked-hyaluronic-acid-nanoparticles-designed-through-a-microfluidic-platform-for-nanomedicine
#9
Maria Russo, Anna Maria Grimaldi, Paolo Bevilacqua, Olimpia Tammaro, Paolo Antonio Netti, Enza Torino
AIM: A high versatile microfluidic platform is proposed to design, in a one-step strategy, PEGylated crosslinked hyaluronic acid nanoparticles (cHANPs) entrapping a magnetic resonance imaging contrast agent and a dye for multimodal imaging applications. MATERIALS & METHODS: Clinically relevant biomaterials were shaped in the form of spherical NPs through a microfluidic flow focusing approach. A comparison between post processing and simultaneous PEGylation is reported to evaluate the potentiality of the chemical decoration of the cHANPs in microfluidics...
September 2017: Nanomedicine
https://www.readbyqxmd.com/read/28715605/how-to-select-a-nanosimilar
#10
Alain Astier, Amy Barton Pai, Marco Bissig, Daan J A Crommelin, Beat Flühmann, Jean-Daniel Hecq, Josefien Knoeff, Hans-Peter Lipp, Alberto Morell-Baladrón, Stefan Mühlebach
Nanomedicines in the class of nonbiological complex drugs (NBCDs) are becoming increasingly available. Up to 23 nanomedicines have been approved, and approximately 50 are in clinical development. Meanwhile, the first nanosimilars have entered the market through the generic approval pathway, but clinical differences have been observed. Many healthcare professionals may be unaware of this issue and must be informed of these clinically relevant variances. This article provides a tool for rational decision making for the inclusion of nanomedicines into the hospital formulary, including defined criteria for evaluation of substitutability or interchangeability...
November 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28700897/a-systematic-comparison-of-clinically-viable-nanomedicines-targeting-hmg-coa-reductase-in-inflammatory-atherosclerosis
#11
Amr Alaarg, Max L Senders, Aida Varela-Moreira, Carlos Pérez-Medina, Yiming Zhao, Jun Tang, Francois Fay, Thomas Reiner, Zahi A Fayad, Wim E Hennink, Josbert M Metselaar, Willem J M Mulder, Gert Storm
Atherosclerosis is a leading cause of worldwide morbidity and mortality whose management could benefit from novel targeted therapeutics. Nanoparticles are emerging as targeted drug delivery systems in chronic inflammatory disorders. To optimally exploit nanomedicines, understanding their biological behavior is crucial for further development of clinically relevant and efficacious nanotherapeutics intended to reduce plaque inflammation. Here, three clinically relevant nanomedicines, i.e., high-density lipoprotein ([S]-HDL), polymeric micelles ([S]-PM), and liposomes ([S]-LIP), that are loaded with the HMG-CoA reductase inhibitor simvastatin [S], were evaluated in the apolipoprotein E-deficient (Apoe(-/-)) mouse model of atherosclerosis...
July 9, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28691406/a-flow-cytometry-based-method-for-the-screening-of-nanomaterial-induced-reactive-oxygen-species-production-in-leukocytes-subpopulations-in-whole-blood
#12
Ali Kermanizadeh, Kim Jantzen, David M Brown, Peter Møller, Steffen Loft
To date, the use and translation of nanomedicine from the laboratory to the clinic has been relatively slow. Among other issues, one of the reasons for this tardiness is the lack of the availability of quick and reliable toxicity tools for the screening of nanomaterials (NMs). In this investigation, we apply a flow cytometry-based method for the detection of nanomaterial-induced oxidative stress by measurement of reactive oxygen species production in specific leukocyte subpopulations in human whole blood. The screening of a panel of relevant nanomedical-associated materials (liposomes, silica, iron oxide and functionalized single-walled carbon nanotubes) demonstrated that only the carbon nanotubes induced oxidative stress in human circulating leukocytes...
January 2018: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28671767/emergence-of-gold-mesoporous-silica-hybrid-nanotheranostics-dox-encoded-folate-targeted-chemotherapy-with-modulation-of-sers-fingerprinting-for-apoptosis-toward-tumor-eradication
#13
Adukkadan N Ramya, Manu M Joseph, Santhi Maniganda, Varsha Karunakaran, Sreelekha T T, Kaustabh Kumar Maiti
Strategically fabricated theranostic nanocarrier delivery system is an unmet need in personalized medicine. Herein, this study reports a versatile folate receptor (FR) targeted nanoenvelop delivery system (TNEDS) fabricated with gold core silica shell followed by chitosan-folic acid conjugate surface functionalization by for precise loading of doxorubicin (Dox), resembled as Au@SiO2 -Dox-CS-FA. TNEDS possesses up to 90% Dox loading efficiency and internalized through endocytosis pathway leading to pH and redox-sensitive release kinetics...
July 3, 2017: Small
https://www.readbyqxmd.com/read/28621571/targeted-nanotechnologies-for-cancer-intervention-a-patent-review-2010-2016
#14
REVIEW
Priyamvada Pradeep, Pradeep Kumar, Yahya E Choonara, Viness Pillay
In recent years, several active targeting nanostrategies have been patented for application in cancer theranostics. The versatility of nanostructures in terms of composition, manufacturability, functionalization, and matrix formation make them ideal for carrying large dose of bioactive contents, high density of targeting ligands on their surface, efficient delivery to the site of interest, and capable of forming multicomponent platforms. Areas covered: The patents were classified into polymeric and non-polymeric nanostructures and their applicability in addressing the targeting paradigm related to cancer intervention was explored...
September 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28596105/multifunctional-nanodiamonds-in-regenerative-medicine-recent-advances-and-future-directions
#15
REVIEW
Jonathan Whitlow, Settimio Pacelli, Arghya Paul
With recent advances in the field of nanomedicine, many new strategies have emerged for diagnosing and treating diseases. At the forefront of this multidisciplinary research, carbon nanomaterials have demonstrated unprecedented potential for a variety of regenerative medicine applications including novel drug delivery platforms that facilitate the localized and sustained release of therapeutics. Nanodiamonds (NDs) are a unique class of carbon nanoparticles that are gaining increasing attention for their biocompatibility, highly functional surfaces, optical properties, and robust physical properties...
September 10, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28545888/delivering-safer-immunotherapies-for-cancer
#16
REVIEW
Lauren Milling, Yuan Zhang, Darrell J Irvine
Cancer immunotherapy is now a powerful clinical reality, with a steady progression of new drug approvals and a massive pipeline of additional treatments in clinical and preclinical development. However, modulation of the immune system can be a double-edged sword: Drugs that activate immune effectors are prone to serious non-specific systemic inflammation and autoimmune side effects. Drug delivery technologies have an important role to play in harnessing the power of immune therapeutics while avoiding on-target/off-tumor toxicities...
May 15, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28506745/applying-nanomedicine-in-maladaptive-inflammation-and-angiogenesis
#17
REVIEW
Amr Alaarg, Carlos Pérez-Medina, Josbert M Metselaar, Matthias Nahrendorf, Zahi A Fayad, Gert Storm, Willem J M Mulder
Inflammation and angiogenesis drive the development and progression of multiple devastating diseases such as atherosclerosis, cancer, rheumatoid arthritis, and inflammatory bowel disease. Though these diseases have very different phenotypic consequences, they possess several common pathophysiological features in which monocyte recruitment, macrophage polarization, and enhanced vascular permeability play critical roles. Thus, developing rational targeting strategies tailored to the different stages of the journey of monocytes, from bone marrow to local lesions, and their extravasation from the vasculature in diseased tissues will advance nanomedicine...
September 15, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28501671/multifunctional-liposomes-delay-phenotype-progression-and-prevent-memory-impairment-in-a-presymptomatic-stage-mouse-model-of-alzheimer-disease
#18
Simona Mancini, Claudia Balducci, Edoardo Micotti, Daniele Tolomeo, Gianluigi Forloni, Massimo Masserini, Francesca Re
The failure of clinical trials largely focused on mild to moderate stages of Alzheimer disease has suggested to the scientific community that the effectiveness of Amyloid-β (Aβ)-centered treatments should be evaluated starting as early as possible, well before irreversible brain damage has occurred. Accordingly, also the preclinical development of new therapies should be carried out taking into account this suggestion. In the present investigation we evaluated the efficacy of a treatment with liposomes multifunctionalized for crossing the blood-brain barrier and targeting Aβ, carried out on young APP/PS1 Tg mice, taken as a model of pre-symptomatic disease stage...
July 28, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28407286/pet-imaging-with-copper-64-as-a-tool-for-real-time-in-vivo-investigations-of-the-necessity-for-cross-linking-of-polymeric-micelles-in-nanomedicine
#19
Andreas I Jensen, Tina Binderup, Pramod Kumar Ek, Constance E Grandjean, Palle H Rasmussen, Andreas Kjaer, Thomas L Andresen
Polymeric micelles in nanomedicine are often cross-linked to prevent disintegration in vivo. This typically requires clinically problematic chemicals or laborious procedures. In addition, cross-linking may interfere with advanced release strategies. Despite this, it is often not investigated whether cross-linking is necessary for efficient drug delivery. We used positron emission tomography (PET) imaging with 64 Cu to demonstrate general methodology for real-time in vivo investigations of micelle stability...
June 30, 2017: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28398108/porous-silicon-for-drug-delivery-applications-and-theranostics-recent-advances-critical-review-and-perspectives
#20
Tushar Kumeria, Steven J P McInnes, Shaheer Maher, Abel Santos
Porous silicon (pSi) engineered by electrochemical etching has been used as a drug delivery vehicle to address the intrinsic limitations of traditional therapeutics. Biodegradability, biocompatibility, and optoelectronic properties make pSi a unique candidate for developing biomaterials for theranostics and photodynamic therapies. This review presents an updated overview about the recent therapeutic systems based on pSi, with a critical analysis on the problems and opportunities that this technology faces as well as highlighting pSi's growing potential...
December 2017: Expert Opinion on Drug Delivery
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