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https://www.readbyqxmd.com/read/28340496/recent-developments-in-nanomedicine-for-melanoma-treatment
#1
REVIEW
Jian-Qin Tang, Xiao-Yang Hou, Chun-Sheng Yang, Ya-Xi Li, Yong Xin, Wen-Wen Guo, Zhi-Ping Wei, Yan-Qun Liu, Guan Jiang
Melanoma is a most aggressive skin cancer with limited therapeutic options and its incidence is increasing rapidly in recent years. The discovery and application of new targeted therapy agents have shown significant benefits. However, adverse side-effects and resistance to chemotherapy remain formidable challenges in the clinical treatment of malignant melanoma. Nanotherapeutics offers an important prospect of overcoming these drawbacks. The anti-tumoral applications of nanomedicine are varied, including those in chemotherapy, RNA interference, photothermal therapy, and photodynamic therapy...
March 24, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28333127/selective-intracellular-vaporisation-of-antibody-conjugated-phase-change-nano-droplets-in-vitro
#2
A Ishijima, K Minamihata, S Yamaguchi, S Yamahira, R Ichikawa, E Kobayashi, M Iijima, Y Shibasaki, T Azuma, T Nagamune, I Sakuma
While chemotherapy is a major mode of cancer therapeutics, its efficacy is limited by systemic toxicities and drug resistance. Recent advances in nanomedicine provide the opportunity to reduce systemic toxicities. However, drug resistance remains a major challenge in cancer treatment research. Here we developed a nanomedicine composed of a phase-change nano-droplet (PCND) and an anti-cancer antibody (9E5), proposing the concept of ultrasound cancer therapy with intracellular vaporisation. PCND is a liquid perfluorocarbon nanoparticle with a liquid-gas phase that is transformable upon exposure to ultrasound...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28325142/calcium-phosphate-nanoparticles-cytocompatibility-versus-cytotoxicity-a-serendipitous-paradox
#3
Milad Pourbaghi Masouleh, Vahid Hosseini, Masoud Pourhaghgouy, Martin K Bakht
Due to efficacious characteristics of calcium phosphate nanoparticles (CPNs), they have numerously been employed in nanomedicine, particularly as carrier for therapeutic and diagnostic agents, and also in tissue engineering. Although calcium phosphate minerals are noted for their cytocompatibility, there are outstanding findings from various studies that question whether they are still compatible with cells in nanoscale ranges or not and it leads to the controversial issue of CPNs cytocompatibility versus cytotoxicity...
March 21, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28324723/specific-light-up-pullulan-based-nanoparticles-with-reduction-triggered-emission-and-activatable-photoactivity-for-the-imaging-and-photodynamic-killing-of-cancer-cells
#4
Jing Xia, Liuwei Zhang, Ming Qian, Yongming Bao, Jingyun Wang, Yachen Li
Activatable photosensitizers that can be activated by cancer-associated stimuli have drawn increasing attention for simultaneous fluorescence imaging and photodynamic ablation of cancer cells. Here, we developed a cancer-cell specific photosensitizer nano-delivery system by synthesizing protoporphyrin IX (PpIX)-conjugated pullulan (P) with reducible disulfide bonds. The amphiphilic P-s-s-PpIX conjugate self-assembled in aqueous condition to form core-shell structured nanoparticles (P-s-s-PpIX NPs) with average size of 166nm, showing reduction-controllable stability...
March 15, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28322141/lessons-learned-from-gemcitabine-impact-of-therapeutic-carrier-systems-and-gemcitabine-s-drug-conjugates-on-cancer-therapy
#5
REVIEW
Sathish Dyawanapelly, Animesh Kumar, Manish K Chourasia
Currently, drug delivery systems have a high impact in cancer therapy and are receiving more attention than conventional cancer treatment modalities. Compared with current cancer therapies, gemcitabine (2', 2'-difluoro-2'-deoxycytidine) has been proven to be an effective chemotherapeutic agent against pancreatic, colon, bladder, breast, ovarian, non-small-cell lung, and head and neck cancers in combination with other anticancer agents. To improve the safety and efficacy of cytotoxic drugs, several drug delivery systems have been explored...
2017: Critical Reviews in Therapeutic Drug Carrier Systems
https://www.readbyqxmd.com/read/28322118/evaluation-of-boron-nitride-nanotubes-and-hexagonal-boron-nitrides-as-nanocarriers-for-cancer-drugs
#6
Melis Emanet, Özlem Şen, Mustafa Çulha
AIM: Boron nitride nanotubes (BNNTs) and hexagonal boron nitrides (hBNs) are novel nanostructures with high mechanical strengths, large surface areas and excellent biocompatibilities. Here, the potential use of BNNTs and hBNs as nanocarriers was comparatively investigated for use with cancer drugs. MATERIALS & METHODS: Doxorubicin (Dox) and folate are used as model drugs and targeting agents, respectively. RESULTS & DISCUSSION: The obtained results indicate that BNNTs have about a threefold higher Dox loading capacity than hBNs...
March 21, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28303024/lessons-from-immuno-oncology-a-new-era-for-cancer-nanomedicine
#7
Wen Jiang, Hengfeng Yuan, Charles K Chan, Christina A von Roemeling, Zuoqin Yan, Irving L Weissman, Betty Y S Kim
Despite a decade of intensive preclinical research, the translation of cancer nanomedicine to the clinic has been slow. Here, we discuss how recent lessons learned from the successes with immuno-oncology therapies could be applied to cancer nanomedicine and how this may help to overcome some of the key technical challenges in this field.
March 17, 2017: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/28302581/targeting-ets1-with-rnai-based-supramolecular-nanoassemblies-for-multidrug-resistant-breast-cancer-therapy
#8
Min Wu, Xingang Liu, Weihong Jin, Yongbing Li, Yang Li, Qinglian Hu, Paul K Chu, Guping Tang, Yuan Ping
Overexpression of erythroblastosis virus E26 oncogene homolog 1 (ETS1) gene is correlated with both tumor progression and poor response to chemotherapy in cancer treatment, and the exploitation of RNA interference (RNAi) technology to downregulate ETS1 seems to be a promising approach to reverse multidrug-resistant cancer cells to chemotherapy. Hence, the RNAi-based nanomedicine which is able to simultaneously downregulate ETS1 expression and to deliver chemotherapeutic agents may improve multidrug-resistant cancer therapy synergistically...
March 13, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28301720/terrylenediimide-based-intrinsic-theranostic-nanomedicines-with-high-photothermal-conversion-efficiency-for-photoacoustic-imaging-guided-cancer-therapy
#9
Shaobo Zhang, Weisheng Guo, Jie Wei, Chan Li, Xing-Jie Liang, Meizhen Yin
Activatable theranostic nanomedicines involved in photothermal therapy (PTT) have received constant attention as promising alternatives to traditional therapies in clinic. However, the theranostic nanomedicines widely suffer from instability and complicated nanostructures, which hamper potential clinical applications. Herein, we demonstrated a terrylenediimide-poly(acrylic acid) (TPA)-based nanomedicine (TNM) platform used as an intrinsic theranostic agent. As an exploratory paradigm in seeking biomedical applications, terrylenediimide (TDI) was modified with poly(acrylic acid)s (PAAs), resulting in eight-armed, star-like TPAs composed of an outside hydrophilic PAA corona and an inner hydrophobic TDI core...
March 16, 2017: ACS Nano
https://www.readbyqxmd.com/read/28296286/nanomedicine-approaches-to-improve-cancer-immunotherapy
#10
REVIEW
Hui Qiu, Yuanzeng Min, Zach Rodgers, Longzhen Zhang, Andrew Z Wang
Significant advances have been made in the field of cancer immunotherapy by orchestrating the body's immune system to eradicate cancer cells. However, safety and efficacy concerns stemming from the systemic delivery of immunomodulatory compounds limits cancer immunotherapies expansion and application. In this context, nanotechnology presents a number of advantages, such as targeted delivery to immune cells, enhanced clinical outcomes, and reduced adverse events, which may aid in the delivery of cancer vaccines and immunomodulatory agents...
March 10, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28295960/interactions-of-renal-clearable-gold-nanoparticles-with-tumor-microenvironments-vasculature-and-acidity-effects
#11
Mengxiao Yu, Chen Zhou, Li Liu, Shanrong Zhang, Shasha Sun, Julia D Hankins, Xiankai Sun, Jie Zheng
The success of nanomedicines in the clinic depends on our comprehensive understanding of nano-bio interactions in tumor microenvironments, which are characterized by dense leaky microvasculature and acidic extracellular pH (pHe ) values. Herein, we investigated the accumulation of ultrasmall renal-clearable gold NPs (AuNPs) with and without acidity targeting in xenograft mouse models of two prostate cancer types, PC-3 and LNCaP, with distinct microenvironments. Our results show that both sets of AuNPs could easily penetrate into the tumors but their uptake and retention were mainly dictated by the tumor microvasculature and the enhanced permeability and retention effect over the entire targeting process...
March 13, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28295684/photoconversion-tunable-fluorophore-vesicles-for-wavelength-dependent-photoinduced-cancer-therapy
#12
Hui He, Shuangshuang Ji, Yang He, Aijun Zhu, Yelin Zou, Yibin Deng, Hengte Ke, Hong Yang, Youliang Zhao, Zhengqing Guo, Huabing Chen
Photoconversion tunability of fluorophore dye is of great interest in cancer nanomedicine such as fluorescence imaging, photodynamic therapy (PDT), and photothermal therapy (PTT). Herein, this paper reports wavelength-dependent photoconversional polymeric vesicles of boron dipyrromethene (Bodipy) fluorophore for either PDT under 660 nm irradiation or PTT under 785 nm irradiation. After being assembled within polymeric vesicles at a high drug loading, Bodipy molecules aggregate in the conformations of both J-type and H-type, thereby causing red-shifted absorption into near-infrared region, ultralow radiative transition, and ideal resistance to photobleaching...
March 15, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28294555/promise-and-peril-in-nanomedicine-the-challenges-and-needs-for-integrated-systems-biology-approaches-to-define-health-risk
#13
REVIEW
Sabina Halappanavar, Ulla Vogel, Hakan Wallin, Carole L Yauk
In the 1966s visionary film 'Fantastic Voyage' a submarine crew was shrunk to 100 nm in size and injected into the body of an injured scientist to repair his damaged brain. The movie (written by Harry Kleiner; directed by Richard Fleischer; novel by Isaac Asimov) drew attention to the potential power of engineered nanoscale structures and devices to construct, monitor, control, treat, and repair individual cells. Even more interesting was the fact that the film elegantly noted that the structure had to be miniaturized to a size that is not detected by the body's immune surveillance system, and highlighted the many physiological barriers that are encountered on the submarine's long journey to the target...
March 15, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28291372/spotlight-on-the-delivery-of-photosensitizers-different-approaches-for-photodynamic-based-therapies
#14
Diogo Silva Pellosi, Priscila da Costa Carvalho de Jesus, Antonio Claudio Tedesco
Nanomedicine development allowed the discovery of new photosensitizers (PS) and drug delivery systems (DDS) to overcome current issues on phototherapy. Nano-engineered materials have the potential to improve the solubility of PS, control drug pharmacokinetics, decreasing side effects, increasing bioavailability, and overcoming multidrug resistance. A recent approach is the co-delivery of PS with other therapeutic agents in a multimodal platform for synergic and improved results. Areas Covered: This paper discusses the delivery of PS-nanostructured platforms for conventional, photothermal, and antimicrobial photodynamic therapies, as well as in a recent therapeutic modality for photobiomodulation, covering applications of cancer diagnosis, targeting to skin pathogens, photoregeneration and wound healing...
March 14, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28288893/redox-responsive-theranostic-nanoplatforms-based-on-inorganic-nanomaterials
#15
Lu Han, Xiao-Yong Zhang, Yu-Long Wang, Xi Li, Xiao-Hong Yang, Min Huang, Kun Hu, Lu-Hai Li, Yen Wei
Spurred on by advances in materials chemistry and nanotechnology, scientists have developed many novel nanopreparations for cancer diagnosis and therapy. To treat complex malignant tumors effectively, multifunctional nanomedicines with targeting ability, imaging properties and controlled drug release behavior should be designed and exploited. The therapeutic efficiency of loaded drugs can be dramatically improved using redox-responsive nanoplatforms which can sense the differences in the redox status of tumor tissues and healthy ones...
March 10, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28287740/mediating-passive-tumor-accumulation-through-particle-size-tumor-type-and-location
#16
Jillian L Perry, Kevin G Reuter, J Christopher Luft, Chad V Pecot, William C Zamboni, Joseph M DeSimone
As the enhanced permeation and retention (EPR) effect continues to be a controversial topic in nanomedicine, we sought to examine EPR as a function of nanoparticle size, tumor model and tumor location, while also evaluating tumors for EPR mediating factors such as microvessel density, vascular permeability, lymphatics, stromal content, and tumor associated immune cells. Tumor accumulation was evaluated for 55x60 nm, 80x180 nm, and 80x320 nm PRINT particles, in four subcutaneous flank tumor models (SKOV3 human ovarian, 344SQ murine non-small cell lung, A549 human non-small cell lung, and A431 human epidermoid cancer)...
March 13, 2017: Nano Letters
https://www.readbyqxmd.com/read/28287606/a-comprehensive-procedure-to-evaluate-the-in-vivo-performance-of-cancer-nanomedicines
#17
Jun Tang, Carlos Pérez-Medina, Yiming Zhao, Ahmad Sadique, Willem J M Mulder, Thomas Reiner
Inspired by the success of previous cancer nanomedicines in the clinic, researchers have generated a large number of novel formulations in the past decade. However, only a small number of nanomedicines have been approved for clinical use, whereas the majority of nanomedicines under clinical development have produced disappointing results. One major obstacle to the successful clinical translation of new cancer nanomedicines is the lack of an accurate understanding of their in vivo performance. This article features a rigorous procedure to characterize the in vivo behavior of nanomedicines in tumor-bearing mice at systemic, tissue, single-cell, and subcellular levels via the integration of positron emission tomography-computed tomography (PET-CT), radioactivity quantification methods, flow cytometry, and fluorescence microscopy...
March 4, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28286148/nanocarriers-for-microrna-delivery-in-cancer-medicine
#18
REVIEW
I Fernandez-Piñeiro, I Badiola, A Sanchez
The number of deaths caused by cancer is expected to increase partly due to the lack of selectivity and undesirable systemic effects of current treatments. Advances in the understanding of microRNA (miRNA) functions and the ideal properties of nanosystems have brought increasing attention to the application of nanomedicine to cancer therapy. This review covers the different miRNA therapeutic strategies and delivery challenges for its application in cancer medicine. Current trends in inorganic, polymeric and lipid nanocarrier development for miRNA replacement or inhibition are summarized...
March 8, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28285944/combination-antitumor-therapy-with-targeted-dual-nanomedicines
#19
REVIEW
Wenbing Dai, Xiaoyou Wang, Ge Song, Tongzhou Liu, Bing He, Hua Zhang, Xueqing Wang, Qiang Zhang
Combination therapy is one of the important treatment strategies for cancer at present. However, the outcome of current combination therapy based on the co-administration of conventional dosage forms is suboptimal, due to the short half-lives of chemodrugs, their deficient tumor selectivity and so forth. Nanotechnology-based targeted delivery systems show great promise in addressing the associated problems and providing superior therapeutic benefits. In this review, we focus on the combination of therapeutic strategies between different nanomedicines or drug-loaded nanocarriers, rather than the co-delivery of different drugs via a single nanocarrier...
March 7, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28280326/lymph-cancer-chemotherapy-delivery-of-doxorubicin-gemcitabine-prodrug-and-vincristine-by-nanostructured-lipid-carriers
#20
Shuqin Ni, Lei Qiu, Guodong Zhang, Haiyan Zhou, Yong Han
PURPOSE: Radiation and chemotherapy are the most common course of treatment for B-cell lymphoma. Doxorubicin (DOX), gemcitabine (GEM), and vincristine (VCR) are the commonly used antilymphoma chemotherapeutic drugs. The aim of this study is to construct a novel drug delivery system for the combination delivery of the three drugs on lymphoma. MATERIALS AND METHODS: DOX-GEM prodrug was synthesized. Novel nanostructured lipid carriers (NLCs) containing DOX-GEM prodrug and VCR were prepared and used to treat B-cell lymphoma through in vivo treatment to a lymph cancer animal model...
2017: International Journal of Nanomedicine
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