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Cancer therapy nano

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https://www.readbyqxmd.com/read/28224786/cisplatin-crosslinked-multifunctional-nanodrugplexes-for-combination-therapy
#1
Weiqi Zhang, Ching-Hsuan Tung
Combination therapy efficiently tackles cancer by hitting multiple action mechanisms. However, drugs administered, simultaneously or sequentially, may not reach the targeted sites with the desired dose and ratio. The outcomes of combination therapy could be improved with a polymeric nanoparticle, which can simultaneously transport an optimal combination of drugs. We have demonstrated a simple one-pot strategy to formulate nanomedicines based on platinum coordination and the non-covalent interactions of the drugs...
February 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28215670/therapeutic-efficacy-of-combined-pegylated-liposomal-doxorubicin-and-radiofrequency-ablation-comparing-single-and-combined-therapy-in-young-and-old-mice
#2
Alexander V Andriyanov, Emma Portnoy, Erez Koren, Sara Eyal, S Nahum Goldberg, Yechezkel Barenholz
Antitumor therapy in the elderly is particularly challenging due to multiple, often chronic diseases, poly-therapy, and age-related physiological changes that affect drug efficacy and safety. Furthermore, tumors may become more aggressive and drug-resistant with advanced age, leading to poor patient prognosis. In this study, we evaluated in mice bearing medulloblastoma xenografts the effect of age on tumor progression and tumor therapy. We focused on therapeutic efficacy of two treatment modalities alone radiofrequency ablation therapy (RFA), PEGylated liposomal doxorubicin (PLD) equivalent to Doxil, and their combination...
February 16, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28215159/the-potential-roles-of-radionanomedicine-and-radioexosomic-in-prostate-cancer-research-and-treatment
#3
Martin K Bakht, So Won Oh, Do Won Hwang, Yun-Sang Lee, Hyewon Youn, Lisa A Porter, Gi Jeong Cheon, Cheol Kwak, Dong Soo Lee, Keon Wook Kang
The artificial nanostructures such as nanoparticles and natural nanostructures such as secreted nano-sized extracellular vesicles known as exosomes are promising tools for the realization of personalized medicine. Radionanomedicine is a recently coined term for the simultaneous application of either radiation technology or nuclear medicine with nanomedicine. In addition, radioexosomics is our suggested term for the study of exosomes functions, cytotoxicity, cancerogenicity, and biodistribution using radiation technology and nuclear medicine tracing technology...
February 16, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28210763/artemisinin-and-its-derivatives-in-cancer-therapy-status-of-progress-mechanism-of-action-and-future-perspectives
#4
REVIEW
Archana Bhaw-Luximon, Dhanjay Jhurry
Since the late 1990s, there has been rapid multiplication of data on the anti-cancer properties of artemisinins. This article reviews the status of progress of artemisinin and its derivatives as anti-cancer agents in clinical trials, case reports, and in vitro/in vivo studies. Particular attention is laid on the combinations of artemisinins and synthetic chemodrugs to enhance the latter's efficacy. An attempt is here made to rationalize the synergistic effects of a few common anti-cancer drugs of the anthracycline, taxane, anti-metabolite, and platinum-based drug families...
February 16, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28191450/remotely-triggered-nano-theranostics-for-cancer-applications
#5
Alexandra Sneider, Derek VanDyke, Shailee Paliwal, Prakash Rai
Nanotechnology has enabled the development of smart theranostic platforms that can concurrently diagnose disease, start primary treatment, monitor response, and, if required, initiate secondary treatments. Recent in vivo experiments demonstrate the promise of using theranostics in the clinic. In this paper, we review the use of remotely triggered theranostic nanoparticles for cancer applications, focusing heavily on advances in the past five years. Remote triggering mechanisms covered include photodynamic, photothermal, phototriggered chemotherapeutic release, ultrasound, electro-thermal, magneto-thermal, X-ray, and radiofrequency therapies...
2017: Nanotheranostics (Syd)
https://www.readbyqxmd.com/read/28187379/novel-doxorubicin-loaded-pegylated-cuprous-telluride-nanocrystals-for-combined-photothermal-chemo-cancer-treatment
#6
Xianwen Wang, Yan Ma, Huajian Chen, Xiaoyi Wu, Haisheng Qian, Xianzhu Yang, Zhengbao Zha
Recently, combined photothermal-chemo therapy has attracted great attention due to its enhanced anti-tumor efficiency via synergistic effects. Herein, PEGylated cuprous telluride nanocrystals (PEGylated Cu2Te NCs) were developed as novel drug nanocarriers for combined photothermal-chemo treatment of cancer cells. PEGylated Cu2Te NCs were fabricated through a simple two-step process, comprised of hot injection and thin-film hydration. The as-prepared PEGylated Cu2Te NCs (average diameter of 5.21±1.05nm) showed a noticeable photothermal conversion efficiency of 33...
February 6, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28185478/multifunctional-magnetic-co-delivery-system-coated-with-polymer-mpeg-pll-fa-for-nasopharyngeal-cancer-targeted-therapy-and-mr-imaging
#7
Hailiang Li, Chaoping Fu, Xiangwan Miao, Quanming Li, Juan Zhang, Huikang Yang, Tao Liu, Xi Chen, Minqiang Xie
The gene and drug co-delivery system has become one of the primary strategies to overcome cancers. Here, we designed a multifunctional magnetic co-delivery system for nasopharyngeal carcinoma-targeted therapy and MR imaging. Aldehyde sodium alginate (ASA) was used to decorate the oxide iron and load cisplain through coordinate bond to form a core complex. The polymer shell poly(l-lysine)-methoxy-polyethylene glycol-folate was used to coat the core complex through electric interaction to give this nano-medicine a target ability...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28183656/facile-synthesis-of-carbon-dot-and-residual-carbon-nanobeads-implications-for-ion-sensing-medicinal-and-biological-applications
#8
Rohit Ranganathan Gaddam, Sudip Mukherjee, Neelambaram Punugupati, D Vasudevan, Chitta Ranjan Patra, Ramanuj Narayan, Raju Vsn Kothapalli
Synthesis of carbon dots (Cdots) via chemical route involves disintegration of carbon materials into nano-domains, wherein, after extraction of Cdots, the remaining carbon material is discarded. The present work focuses on studying even the leftover carbon residue namely, carbon nanobeads (CNBs) as an equally important material for applications on par with that of carbon dot. It employs oxidative treatment of carbonised gum olibanum resin (GOR) to produce the carbons namely Cdots and CNBs (as the residue). The Cdots (~5-10nm) exhibit blue-green fluorescence with an optical absorption at ~300nm unlike the CNBs (40-50nm) which fail to exhibit fluorescence...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28158294/deep-proteome-mapping-of-wm-266-4-human-metastatic-melanoma-cells-from-oncogenic-addiction-to-druggable-targets
#9
Eumorphia G Konstantakou, Athanassios D Velentzas, Athanasios K Anagnostopoulos, Zoi I Litou, Ourania A Konstandi, Aikaterini F Giannopoulou, Ema Anastasiadou, Gerassimos E Voutsinas, George Th Tsangaris, Dimitrios J Stravopodis
Cutaneous melanoma is a malignant tumor of skin melanocytes that are pigment-producing cells located in the basal layer (stratum basale) of epidermis. Accumulation of genetic mutations within their oncogenes or tumor-suppressor genes compels melanocytes to aberrant proliferation and spread to distant organs of the body, thereby resulting in severe and/or lethal malignancy. Metastatic melanoma's heavy mutational load, molecular heterogeneity and resistance to therapy necessitate the development of novel biomarkers and drug-based protocols that target key proteins involved in perpetuation of the disease...
2017: PloS One
https://www.readbyqxmd.com/read/28154249/innovations-in-liposomal-dds-technology-and-its-application-for-the-treatment-of-various-diseases
#10
REVIEW
Naoto Oku
Liposomes have been widely used as drug carriers in the field of drug delivery systems (DDS), and they are thought to be ideal nano-capsules for targeting DDS after being injected into the bloodstream. In general, DDS drugs meet the needs of aged and super-aged societies, since the administration route of drugs can be changed, the medication frequency reduced, the adverse effects of drugs suppressed, and so on. In fact, a number of liposomal drugs have been launched and used worldwide including liposomal anticancer drugs, and these drugs have appeared on the market owing to various innovations in liposomal DDS technologies...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28150211/gene-silencing-using-multifunctionalized-gold-nanoparticles-for-cancer-therapy
#11
Alexandra R Fernandes, Pedro V Baptista
Multifunctionalized gold nanobeacons (Au-nanobeacon) combine, in a single and unique platform, targeting, detection and silencing providing an effective impact in clinics boosting cancer theranostics. Here, we describe a nano-integrated platform based on Au-nanobeacons able to detect and inhibit gene expression specifically in cancer cells. The surfaces of gold nanoparticles (AuNPs) are functionalized with targeting peptides to enhance tumor cell recognition and uptake, and with fluorescently labeled antisense DNA hairpin oligonucleotides to detect AuNPs...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28150208/designing-multicomponent-nanosystems-for-rapid-detection-of-circulating-tumor-cells
#12
Shashwat S Banerjee, Vrushali Khobragade, Jayant Khandare
Detection of circulating tumor cells (CTCs) in the blood circulation holds immense promise as it predicts the overall probability of patient survival. Therefore, CTC-based technologies are gaining prominence as a "liquid biopsy" for cancer diagnostics and prognostics. Here, we describe the design and synthesis of two distinct multicomponent magnetic nanosystems for rapid capture and detection of CTCs. The multifunctional Magneto-Dendrimeric Nano System (MDNS) composed of an anchoring dendrimer that is conjugated to multiple agents such as near infrared (NIR) fluorescent cyanine 5 NHS (Cy5), glutathione (GSH), transferrin (Tf), and iron oxide (Fe3O4) magnetic nanoparticle (MNP) for simultaneous tumor cell-specific affinity, multimodal high resolution confocal imaging, and cell isolation...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28145890/self-assembled-nano-balls-released-from-multistage-vector-for-cancer-therapy
#13
Jin Qian, Xiaojun Xia, Yan Xie
The efficacy of cancer drugs is often compromised due to the existence of biological barriers such as nonspecific distribution, hemorheological flow limitation and endothelial extravasation, impaired delivery across tumor cell membranes and tissue, and multidrug resistance. To overcome these obstacles, Xu et al developed an injectable nanoparticle generator platform to negotiate with the biological barriers and enable self-assembly of nano-balls in situ in order to maximize drug accumulation inside the tumor tissues and hence the therapeutic efficacy...
March 24, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28138675/targeting-peptide-functionalized-liposomes-towards-aminopeptidase-n-for-precise-tumor-diagnosis-and-therapy
#14
Xiangqian Jia, Qiuju Han, Zihua Wang, Yixia Qian, Yunhong Jia, Weizhi Wang, Zhiyuan Hu
Aminopeptidase N (APN/CD13) is closely related to the growth of cancers and is suggested as a suitable target for anti-cancer therapy. Based on the "one-bead-one-compound" (OBOC) approach on a microarray device, we screened out a novel affinity peptide LN (YEVGHRC). It was determined that LN could specifically recognize and bind to APN. Moreover, LN-functionalized liposomes (LN-LS) could achieve efficient nano-encapsulated drug delivery under APN-overexpressing tumor conditions in vitro and in vivo. We expect that LN-LS could provide a new strategy for APN-positive tumor diagnosis and therapy...
January 31, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28137239/targeted-theranostics-against-solid-cancer-using-metal-bond-milk-protein-and-aptamers
#15
Suman Chaudhary, Rupinder Kaur Kanwar, Jagat Rakesh Kanwar
Targeted therapeutics is a new generation therapy that can increase the efficacy of chemotherapeutic drugs, by facilitating site-specific delivery with minimum off-target effects. Amongst the targeted therapy, nucleic-acid based aptamers are increasingly gaining interest due to their small size, long shelf-life and ease in synthesis. Further, lactoferrin, a milk protein belonging to the transferrin family is now an established multi-functional iron-binding protein. Its applicability as an immunomodulator, antimicrobial and an anti-cancer agent has made this protein highly valuable...
January 30, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28128375/facile-fabrication-of-a-magnetically-smart-ptx-loaded-cys-fe3o4-cus-bsa-nano-drug-for-imaging-guided-chemo-photothermal-therapy
#16
Lanfang Ren, Xijian Liu, Qian Wang, Lijuan Zhang, Guoying Deng, Feng Zhou, Jie Lu
In this study, a multifunctional nano-drug (PTX-loaded Cys-Fe3O4/CuS@BSA nanocomposite), which performs well in hydrophobic drug delivery, magnetic resonance imaging (MRI) and chemo-photothermal combination therapy, has been successfully synthesized via a facile method with several biocompatible agents. The characterization verified that our as-obtained nanocarrier has a preferable average diameter of about 300 nm for cancer therapy, shows a great MRI ability and magnetism performance, and exhibits a favorable in vitro and in vivo photothermal therapeutic efficacy by introducing CuS, and the sustained release of chemotherapeutics could be controlled by pH value and near-infrared laser irradiation has further enhanced the therapeutic performance...
January 27, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28124299/a-micelle-self-assembled-from-doxorubicin-arabinoxylan-conjugates-with-ph-cleavable-bond-for-synergistic-antitumor-therapy
#17
Jie Wang, Yanli Li, Xia Dong, Ying Wang, Xiaodan Chong, Tai Yu, Fulei Zhang, Di Chen, Li Zhang, Jie Gao, Cheng Yang, Jun Han, Wei Li
Nanomedicine offers new hope to overcome the low solubility and high side toxicity to normal tissue appeared in traditional chemotherapy. The biocompatibility and intracellular drug accumulation is still a big challenge for the nano-based formulations. Herein, a medical-used biocompatible arabinoxylan (AX) is used to develop to delivery chemodrug doxorubicin (DOX). The solubility of DOX is obviously enhanced via the hydrogen bond formed with AX which results in an amphiphilic AX-DOX. A micelle with pH-cleavable bond is thus self-assembled from such AX-DOX with DOX core and AX shell...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28112512/enzyme-sensitive-and-amphiphilic-pegylated-dendrimer-paclitaxel-prodrug-based-nanoparticles-for-enhanced-stability-and-anticancer-efficacy
#18
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...
February 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28106955/cypate-mediated-thermosensitive-nanoliposome-for-tumor-imaging-and-photothermal-triggered-drug-release
#19
Zhihao Han, Liwei Lv, Yi Ma, Zhaohui Wang, Yuxi Liu, Min Zhang, Siwen Li, Yueqing Gu
It is an emerging focus to explore controlled release drug delivery systems for simultaneous cancer imaging and therapy. Herein, we synthesized a photothermal sensitive multifunctional nano-liposome drug delivery system, with doxorubicin wrapped in the hydropholic layer as the therapeutical agent and cypate doped in the hydrophobic layer as the diagnostic agent. A series of in vitro and in vivo characterization demonstrated the stability of synthesized liposome, as the DL% was 9 ± 1.5 and the EE% was 82.7 ± 2...
January 20, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28060268/a-facile-and-efficient-approach-for-the-production-of-reversible-disulfide-cross-linked-micelles
#20
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
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