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NanoMedicine

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https://www.readbyqxmd.com/read/28719022/engineering-the-surface-of-smart-nanocarriers-using-a-ph-thermal-gsh-responsive-polymer-zipper-for-precise-tumor-targeting-therapy-in-vivo
#1
Penghui Zhang, Yan Wang, Jing Lian, Qi Shen, Chen Wang, Bohan Ma, Yuchao Zhang, Tingting Xu, Jianxin Li, Yongping Shao, Feng Xu, Jun-Jie Zhu
Nanocarrier surface chemistry plays a vital role in mediating cell internalization and enhancing delivery efficiency during in vivo chemotherapy. Inspired by the ability of proteins to alter their conformation to mediate functions, a pH-/thermal-/glutathione-responsive polymer zipper consisting of cell-penetrating poly(disulfide)s and thermosensitive polymers bearing guanidinium/phosphate (Gu(+) /pY(-) ) motifs to spatiotemporally tune the surface composition of nanocarriers for precise tumor targeting and efficient drug delivery is developed...
July 18, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28718680/development-of-emu-oil-loaded-pcl-collagen-bioactive-nanofibers-for-proliferation-and-stemness-preservation-of-human-adipose-derived-stem-cell-possible-application-in-regenerative-medicine
#2
Kazem Nejati-Koshki, Younes Pilehvar-Soltanahmadi, Effat Alizadeh, Abbas Ebrahimi-Kalan, Yousef Mortazavi, Nosratollah Zarghami
Adipose tissue-derived stem cells (ASCs) are promising candidate in stem cell therapies, and maintaining their stemness potential is vital to achieve effective treatment. Natural based scaffolds have been recently attracted increasing attention in nanomedicine and drug delivery. In the present study, a polymeric nanofibrous scaffold was developed based on the polycaprolactone/Collagen (PCL/Coll) containing Emu oil as a bioactive material to induce the proliferation of ASCs, while simultaneously preserve the stemness property of those cells...
July 18, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28716187/impact-of-albumin-based-approaches-in-nanomedicine-imaging-targeting-and-drug-delivery
#3
REVIEW
Bharat Bhushan, Vitaly Khanadeev, Boris Khlebtsov, Nikolai Khlebtsov, P Gopinath
A major challenge in the field of nanomedicine is to transform laboratory innovations into commercially successful clinical products. In this campaign, a variety of nanoenabled approaches have been designed and investigated for their role in biomedical applications. The advantages associated with the unique structure of albumin imparts it with the ability to interact with variety of molecules, while the functional groups present on their surface provide base for large number of modifications making it as an ideal nanocarrier system...
July 1, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28715605/how-to-select-a-nanosimilar
#4
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...
July 17, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28715227/balancing-passive-and-active-targeting-to-different-tumor-compartments-using-riboflavin-functionalized-polymeric-nanocarriers
#5
Yoanna Tsvetkova, Nataliia Beztsinna, Maike Baues, Dionne Klein, Anne Rix, Susanne Katherina Golombek, Wa'el Al Rawashdeh, Felix Gremse, Matthias Barz, Kaloian Koynov, Srinivas Banala, Wiltrud Lederle, Twan Lammers, Fabian Kiessling
Riboflavin Transporters (RFTs) and the Riboflavin Carrier Protein (RCP) are highly upregulated in many tumor cells, tumor stem cells and tumor neovasculature, which makes them attractive targets for nanomedicines. Addressing cells in different tumor compartments requires drug carriers, which are not only able to accumulate via the EPR effect, but also to extravasate, target specific cell populations, and get internalized by cells. Reasoning that antibodies are among the most efficient targeting systems developed by nature, we consider their size (~10-15 nm) to be ideal for balancing passive and active tumor targeting...
July 17, 2017: Nano Letters
https://www.readbyqxmd.com/read/28714394/nanoparticle-mediated-delivery-of-neuroprotective-substances-for-the-treatment-of-diabetic-retinopathy
#6
Rosario Amato, Massimo Dal Monte, Matteo Lulli, Vittoria Raffa, Giovanni Casini
Diabetic retinopathy (DR) is a major complication of diabetes, characterized by extensive vascular pathology leading to vision loss. Neuronal suffering and death are also present in the diabetic retina as a result of different molecular mechanisms that are compromised or modified in response to high glucose and that mainly include excitotoxicity, advanced glycation, inflammation and oxidative stress. Recent data indicate that the vascular changes may be secondary to damage of retinal neurons and that neurodegeneration is likely to play a primary role in the development of DR...
July 17, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28710434/modifying-dendritic-cell-activation-with-plasmonic-nano-vectors
#7
Kieng Bao Vang, Ingrid Safina, Emilie Darrigues, Dmitry Nedosekin, Zeid A Nima, Waqar Majeed, Fumiya Watanabe, Ganesh Kannarpady, Rajshekhar A Kore, Daniel Casciano, Vladimir P Zharov, Robert J Griffin, Ruud P M Dings, Alexandru S Biris
Dendritic cells (DCs) can acquire, process, and present antigens to T-cells to induce an immune response. For this reason, targeting cancer antigens to DCs in order to cause an immune response against cancer is an emerging area of nanomedicine that has the potential to redefine the way certain cancers are treated. The use of plasmonically active silver-coated gold nanorods (henceforth referred to as plasmonic nano vectors (PNVs)) as potential carriers for DC tumor vaccines has not been presented before. Effective carriers must be able to be phagocytized by DCs, present low toxicity, and induce the maturation of DCs-an early indication of an immune response...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28708389/nanostructured-phthalocyanine-assemblies-with-protein-driven-switchable-photoactivities-for-biophotonic-imaging-and-therapy
#8
Xingshu Li, C-Yoon Kim, Seunghyun Lee, Dayoung Lee, Hyung Min Chung, Gyoungmi Kim, Si-Hyun Heo, Chulhong Kim, Ki-Sung Hong, Juyoung Yoon
Switchable phototheranostic nanomaterials are of particular interest for specific biosensing, high-quality imaging, and targeted therapy in the field of precision nanomedicine. Here, we develop a "one-for-all" nanomaterial that self-assembles from flexible and versatile phthalocyanine building blocks. The nanostructured phthalocyanine assemblies (NanoPcTBs) display intrinsically unique photothermal and photoacoustic properties. Fluorescence and reactive oxygen species (ROS) generation can be triggered depending on a targeted, protein-induced, partial disassembly mechanism, which creates opportunities for low-background fluorescence imaging and activatable photodynamic therapy (PDT)...
July 14, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28705729/nanomedicine-and-epigenome-possible-health-risks
#9
Bozena Smolkova, Maria Dusinska, Alena Gabelova
Nanomedicine is an emerging field that combines knowledge of nanotechnology and material science with pharmaceutical and biomedical sciences, aiming to develop nanodrugs with increased efficacy and safety. Compared to conventional therapeutics, nanodrugs manifest higher stability and circulation time, reduced toxicity and improved targeted delivery. Despite the obvious benefit, the accumulation of imaging agents and nanocarriers in the body following their therapeutic or diagnostic application generates concerns about their safety for human health...
July 10, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28704712/multipurpose-efficacy-of-zno-nanoparticles-coated-by-the-crustacean-immune-molecule-%C3%AE-1-3-glucan-binding-protein-toxicity-on-hepg2-liver-cancer-cells-and-bacterial-pathogens
#10
Arokiadhas Iswarya, Baskaralingam Vaseeharan, Mahalingam Anjugam, Balasubramaniem Ashokkumar, Marimuthu Govindarajan, Naiyf S Alharbi, Shine Kadaikunnan, Jamal M Khaled, Giovanni Benelli
The effective treatment of cancer and bacterial pathogens are two key challenges in modern nanomedicine. Here, zinc oxide nanoparticles (ZnO NPs) were fabricated using the crustacean immune molecule β-1, 3- glucan binding protein (Phβ-GBP, 100kDa) purified from the heamolymph of Paratelphusa hydrodromus. β-GBP coated zinc oxide nanoparticles (Phβ-GBP-ZnO NPs) were characterized by UV-vis spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and high resolution-transmission electron microscopy (HR-TEM) analyses...
June 24, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28703636/therapeutic-targeting-in-nanomedicine-the-future-lies-in-recombinant-antibodies
#11
Geoffrey A Pietersz, Xiaowei Wang, May Lin Yap, Bock Lim, Karlheinz Peter
The unique chemical and functional properties of nanoparticles can be harnessed for the delivery of large quantities of various therapeutic biomolecules. Active targeting of nanoparticles by conjugating ligands that bind to target cells strongly facilitates accumulation, internalization into target cells and longer retention at the target site, with consequent enhanced therapeutic effects. Recombinant antibodies with high selectivity and availability for a vast range of targets will dominate the future. In this review, we systematically outline the tremendous progress in the conjugation of antibodies to nanoparticles and the clear advantages that recombinant antibodies offer in the therapeutic targeting of nanoparticles...
July 13, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28701140/editorial-targeting-the-brain-with-nanomedicine-diagnostics-prevention-and-treatment
#12
EDITORIAL
Luis J Cruz
No abstract text is available yet for this article.
2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28700898/sub-100nm-long-tumor-retention-sn-38-loaded-photonic-micelles-for-tri-modal-cancer-therapy
#13
Xixiao Yang, Xiangdong Xue, Yan Luo, Tzu-Yin Lin, Hongyong Zhang, Diana Lac, Kai Xiao, Yixuan He, Bei Jia, Kit S Lam, Yuanpei Li
The tumor penetration and accumulation of nanoparticle-based drug delivery systems are highly dependent on the particle size. Nanomedicines in the sub-100nm range have been suggested by previous studies to have superior antitumor efficacy on various solid tumors. SN-38 is a very important and highly potent drug for several cancers including colon cancer. However, due to the ultra-flat aromatic structure of SN-38, it is typically very difficult to produce sub-100nm, SN-38-encapsulated nanoparticles without modification of the chemical structure...
July 9, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28700897/a-systematic-comparison-of-clinically-viable-nanomedicines-targeting-hmg-coa-reductase-in-inflammatory-atherosclerosis
#14
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/28699537/recent-advances-in-polymeric-nanosystems-for-treating-cutaneous-melanoma-and-its-metastasis
#15
Yi-Ping Chou, Yin-Ku Lin, Chun-Han Chen, Jia-You Fang
Melanoma shows a high possibility of mortality after it metastasizes because of its aggressive nature. Although there are several options for anti-melanoma therapy, this skin malignancy is resistant to some therapies. Chemotherapy, biochemotherapy, immunotherapy, and adoptive cell therapy have failed to exhibit a significant amelioration in overall survival. Nanomedicine provides an opportunity to improve the efficiency of the anti-melanoma regimen. Nanoparticles for treating melanoma provide the advantages over conventional therapies such as drug solubility increment, drug stability enhancement, epithelium permeability and bioavailability amelioration, half-life prolonging, tumor targeting, and side effect minimization...
July 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28699525/hybrid-materials-and-nanocomposites-as-multifunctional-biomaterials
#16
Heveline D M Follmann, Alliny F Naves, Rafael A Araujo, Viktor Dubovoy, Xiaoxi Huang, Tewodros Asefa, Rafael Silva, Osvaldo N Oliveira
This review article provides an overview of hybrid and nanocomposite materials used as biomaterials in nanomedicine, focusing on applications in controlled drug delivery, tissue engineering, biosensors and theranostic systems. Special emphasis is placed on the importance of tuning the properties of nanocomposites, which can be achieved by choosing appropriate synthetic methods and seeking synergy among different types of materials, particularly exploiting their nanoscale nature. The challenges in fabrication for the nanocomposites are highlighted by classifying them as those comprising solely inorganic phases (inorganic/inorganic hybrids), organic phases (organic/organic hybrids) and both types of phases (organic/inorganic hybrids)...
July 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28698874/preclinical-studies-and-translational-applications-of-intracerebral-hemorrhage
#17
REVIEW
Felix Siaw-Debrah, Mark Nyanzu, Haoqi Ni, Xiao Lin, Zhu Xu, Linhui Ruan, Qichuan Zhuge, Lijie Huang
Intracerebral hemorrhage (ICH) which refers to bleeding in the brain is a very deleterious condition with high mortality and disability rate. Surgery or conservative therapy remains the treatment option. Various studies have divided the disease process of ICH into primary and secondary injury, for which knowledge into these processes has yielded many preclinical and clinical treatment options. The aim of this review is to highlight some of the new experimental drugs as well as other treatment options like stem cell therapy, rehabilitation, and nanomedicine and mention some translational clinical applications that have been done with these treatment options...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28697952/pharmacological-and-physical-vessel-modulation-strategies-to-improve-epr-mediated-drug-targeting-to-tumors
#18
Tarun Ojha, Vertika Pathak, Yang Shi, Wim Hennink, Chrit Moonen, Gert Storm, Fabian Kiessling, Twan Lammers
The performance of nanomedicine formulations depends on the Enhanced Permeability and Retention (EPR) effect. Prototypic nanomedicine-based drug delivery systems, such as liposomes, polymers and micelles, aim to exploit the EPR effect to accumulate at pathological sites, to thereby improve the balance between drug efficacy and toxicity. Thus far, however, tumor-targeted nanomedicines have not yet managed to achieve convincing therapeutic results, at least not in large cohorts of patients. This is likely mostly due to high inter- and intra-patient heterogeneity in EPR...
July 8, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28696452/platinum-nanoparticles-in-nanobiomedicine
#19
REVIEW
Deborah Pedone, Mauro Moglianetti, Elisa De Luca, Giuseppe Bardi, Pier Paolo Pompa
Oxidative stress-dependent inflammatory diseases represent a major concern for the population's health worldwide. Biocompatible nanomaterials with enzymatic properties could play a crucial role in the treatment of such pathologies. In this respect, platinum nanoparticles (PtNPs) are promising candidates, showing remarkable catalytic activity, able to reduce the intracellular reactive oxygen species (ROS) levels and impair the downstream pathways leading to inflammation. This review reports a critical overview of the growing evidence revealing the anti-inflammatory ability of PtNPs and their potential applications in nanomedicine...
July 11, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28696100/thermosensitive-liposomal-co-delivery-of-hsa-paclitaxel-and-hsa-ellagic-acid-complexes-for-enhanced-drug-perfusion-and-efficacy-against-pancreatic-cancer
#20
Yan Wei, Yuxi Wang, Dengning Xia, Shiyan Guo, Feng Wang, Xinxin Zhang, Yong Gan
Fibrotic stroma and tumor-promoting pancreatic stellate cells (PSCs), critical characters in the pancreatic ductal adenocarcinoma (PDA) microenvironment, promote a tumor-facilitating environment that simultaneously prevents drug penetration into tumor foci and stimulates tumor growth. Nab-PTX, a human serum albumin (HSA) nanoparticle of paclitaxel (PTX), indicates enhanced matrix penetration in PDA probably due to its small size in vivo and high affinity of HSA with secreted protein acidic and rich in cysteine (SPARC), overexpressed in the PDA stroma...
July 11, 2017: ACS Applied Materials & Interfaces
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