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Cancer therapy nano

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https://www.readbyqxmd.com/read/27920894/recent-advances-in-the-preparation-and-application-of-multifunctional-iron-oxide-and-liposome-based-nanosystems-for-multimodal-diagnosis-and-therapy
#1
REVIEW
Marzia Marciello, Juan Pellico, Irene Fernandez-Barahona, Fernando Herranz, Jesus Ruiz-Cabello, Marco Filice
Nowadays, thanks to the successful discoveries in the biomedical field achieved in the last two decades, a deeper understanding about the complexity of mechanistic aspects of different pathological processes has been obtained. As a consequence, even the standard therapeutic protocols have undergone a vast redesign. In fact, the awareness about the necessity to progress towards a combined multitherapy in order to potentially increase the final healing chances has become a reality. One of the crucial elements of this novel approach is that large amounts of detailed information are highly needed and in vivo imaging techniques represent one of the most powerful tools to visualize and monitor the pathological state of the patient...
December 6, 2016: Interface Focus
https://www.readbyqxmd.com/read/27916516/local-dose-enhancement-of-proton-therapy-by-ceramic-oxide-nanoparticles-investigated-with-geant4-simulations
#2
Sally McKinnon, Susanna Guatelli, Sebastien Incerti, Vladimir Ivanchenko, Konstantin Konstantinov, Stéphanie Corde, Michael Lerch, Moeava Tehei, Anatoly Rosenfeld
Nanoparticles (NPs) have been shown to enhance X-ray radiotherapy and proton therapy of cancer. The effectiveness of radiation damage is enhanced in the presence of high atomic number (high-Z) NPs due to increased production of low energy, higher linear energy transfer (LET) secondary electrons when NPs are selectively internalized by tumour cells. This work quantifies the local dose enhancement produced by the high-Z ceramic oxide NPs Ta2O5 and CeO2, in the target tumour, for the first time in proton therapy, by means of Geant4 simulations...
December 1, 2016: Physica Medica: PM
https://www.readbyqxmd.com/read/27896591/design-and-in-vitro-evaluation-of-bispecific-complexes-and-drug-conjugates-of-anticancer-peptide-lyp-1-in-human-breast-cancer
#3
Selin Seda Timur, Prashant Bhattarai, Reyhan Neslihan Gürsoy, İmran Vural, Ban-An Khaw
PURPOSE: LyP-1, a nine-amino-acid tumor homing peptide, selectively binds to its cognate receptor, p32. Overexpression of p32 in certain tumors should allow use of LyP-1 as a targeting agent for the delivery of therapeutic or diagnostic agents. Peptide conjugates are developed for enhanced pre-targeting of MDA-MB-231 breast cancer cells with peptide-antibody bispecific complexes and targeting with multiple-drug/-fluorophore-conjugated nano-polymers. METHODS: LyP-1-anti-DTPA bispecific antibody complexes (LyP-1-bsAbCx) were generated by conjugation of anti-DTPA antibody and LyP-1...
November 28, 2016: Pharmaceutical Research
https://www.readbyqxmd.com/read/27886461/biomaterial-based-implantable-devices-for-cancer-therapy
#4
Sue Anne Chew, Serena Danti
This review article focuses on the current local therapies mediated by implanted macroscaled biomaterials available or proposed for fighting cancer and also highlights the upcoming research in this field. Several authoritative review articles have collected and discussed the state-of-the-art as well as the advancements in using biomaterial-based micro- and nano-particle systems for drug delivery in cancer therapy. On the other hand, implantable biomaterial devices are emerging as highly versatile therapeutic platforms, which deserve an increased attention by the healthcare scientific community, as they are able to offer innovative, more effective and creative strategies against tumors...
November 25, 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27875976/micro-nano-scale-biointerfaces-mechanical-coupling-and-cancer-therapy
#5
Xiang Li, Cuiying Liu, Peipei Chen, Dong Han
The interaction between cancer cells and their microenvironment is an indispensable link in cancer progression that occurs on the interfaces between them and presents typical biointerfacial behavior. Recently, the cancer cell/microenvironment interface has begun to attract more attention because of its fundamental roles in cancer growth and metastasis, which is promising for the efficacy of anti-cancer drugs and other important effects. In this review, we focused on mechanical coupling of the biointerfaces and their application in cancer early diagnosis, the pharmacology of anticancer agents and the design of the anticancer drug carriers...
November 22, 2016: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/27863995/tumor-targeted-delivery-of-sunitinib-base-enhances-vaccine-therapy-for-advanced-melanoma-by-remodeling-the-tumor-microenvironment
#6
Meirong Huo, Yan Zhao, Andrew Benson Satterlee, Yuhua Wang, Ying Xu, Leaf Huang
Development of an effective treatment against advanced tumors remains a major challenge for cancer immunotherapy. We have previously developed a potent mannose-modified lipid calcium phosphate (LCP) nanoparticle (NP)-based Trp2 vaccine for melanoma therapy, but because this vaccine can induce a potent anti-tumor immune response only during the early stages of melanoma, poor tumor growth inhibition has been observed in more advanced melanoma models, likely due to the development of an immune-suppressive tumor microenvironment (TME)...
November 15, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27853726/effects-of-ultrasound-irradiation-on-the-release-profile-of-5-fluorouracil-from-magnetic-polylactic-co-glycolic-acid-nanocapsules
#7
Z Abed, J Beik, S Khoee, S Khoei, A Shakeri-Zadeh, M B Shiran
BACKGROUND: Drug nano-carriers are one of the most important tools for targeted cancer therapy so that undesired side effects of chemotherapy drugs are minimized. In this area, the use of ultrasound can be helpful in controlling drug release from nanoparticles to achieve higher treatment efficiency. OBJECTIVE: Here, we studies the effects of ultrasound irradiation on the release profile of 5-fluorouracil (5-Fu) loaded magnetic poly lactic co-glycolic acid (PLGA) nanocapsules...
September 2016: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/27847208/synthesis-and-characterization-of-chrysin-loaded-pcl-peg-pcl-nanoparticle-and-its-effect-on-breast-cancer-cell-line
#8
Ali Eatemadi, Hadis Daraee, Hammed T Aiyelabegan, Babak Negahdari, Bahram Rajeian, Nosratollah Zarghami
BACKGROUND: Nano-therapy exhibit the potential of revolutionizing cancer therapy. This field introduces nanovectors/nanocarriers for anticancer drugs targeted delivery, and also finds application in imaging. Chrysin, a natural flavonoid, was recently studied as having important biological roles in chemical defenses, nitrogen fixation, anti-inflammatory, and anti-oxidant properties. We aim at studying the effect of nano-chrysin on breast cancer cell line. METHODS: The effect of chrysin loaded PCL-PEG-PCL was studied on T47D breast cancer cell line...
November 12, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27846403/magnetic-hyperthermia-enhances-cell-toxicity-with-respect-to-exogenous-heating
#9
Beatriz Sanz, M Pilar Calatayud, Teobaldo E Torres, Mónica L Fanarraga, M Ricardo Ibarra, Gerardo F Goya
Magnetic hyperthermia is a new type of cancer treatment designed for overcoming resistance to chemotherapy during the treatment of solid, inaccessible human tumors. The main challenge of this technology is increasing the local tumoral temperature with minimal side effects on the surrounding healthy tissue. This work consists of an in vitro study that compared the effect of hyperthermia in response to the application of exogenous heating (EHT) sources with the corresponding effect produced by magnetic hyperthermia (MHT) at the same target temperatures...
November 9, 2016: Biomaterials
https://www.readbyqxmd.com/read/27842486/advances-and-implications-in-nanotechnology-for-lung-cancer-management
#10
Sana Sarkar, Khwaja Osama, Qazi Mohammad Sajid Jamal, Mohammad Amjad Kamal, Usman Sayeed, M Kalim A Khan, Mohd Haris Siddiqui, Salman Akhtar
Lung cancer is one of the most important chronic diseases in the field of respiratory medicine. Conventional treatment strategies for lung cancer include chemotherapy, surgery and radiation therapy. These current therapies lack specificity and are limited by undesirable toxicities in normal cells, as well as a high rate of recurrence.Nanotechnological intervention has greatly revolutionized the therapy of lung cancer by surmounting the current limitations in conventional therapies. Nanoparticles (NPs) achieve preferential accumulation in the tumor cells by employing two mechanisms: passive and active targeting...
November 14, 2016: Current Drug Metabolism
https://www.readbyqxmd.com/read/27834398/cancer-nanomedicine-progress-challenges-and-opportunities
#11
Jinjun Shi, Philip W Kantoff, Richard Wooster, Omid C Farokhzad
The intrinsic limits of conventional cancer therapies prompted the development and application of various nanotechnologies for more effective and safer cancer treatment, herein referred to as cancer nanomedicine. Considerable technological success has been achieved in this field, but the main obstacles to nanomedicine becoming a new paradigm in cancer therapy stem from the complexities and heterogeneity of tumour biology, an incomplete understanding of nano-bio interactions and the challenges regarding chemistry, manufacturing and controls required for clinical translation and commercialization...
November 11, 2016: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/27815166/microfluidic-assembly-of-a-nano-in-micro-dual-drug-delivery-platform-composed-of-halloysite-nanotubes-and-a-ph-responsive-polymer-for-colon-cancer-therapy
#12
Wei Li, Dongfei Liu, Hongbo Zhang, Alexandra Correia, Ermei Mäkilä, Jarno Salonen, Jouni Hirvonen, Hélder A Santos
: Harsh conditions of the gastrointestinal tract hinder the oral delivery of many drugs. Developing oral drug delivery systems based on commercially available materials is becoming more challenging due to the demand for simultaneously delivering physicochemically different drugs for treating complex diseases. A novel architecture, namely nanotube-in-microsphere, was developed as a drug delivery platform by encapsulating halloysite nanotubes (HNTs) in a pH-responsive hydroxypropyl methylcellulose acetate succinate polymer using microfluidics...
November 1, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27800642/p110%C3%AE-inhibition-reduces-histone-h3k4-di-methylation-in-prostate-cancer
#13
Jun Pang, Yue-Wu Yang, Yiling Huang, Jun Yang, Hao Zhang, Ruibao Chen, Liang Dong, Yan Huang, Dongying Wang, Jihong Liu, Benyi Li
INTRODUCTION AND AIMS: Epigenetic alteration plays a major role in the development and progression of human cancers, including prostate cancer. Histones are the key factors in modulating gene accessibility to transcription factors and post-translational modification of the histone N-terminal tail including methylation is associated with either transcriptional activation (H3K4me2) or repression (H3K9me3). Furthermore, phosphoinositide 3-kinase (PI3 K) signaling and the androgen receptor (AR) are the key determinants in prostate cancer development and progression...
November 1, 2016: Prostate
https://www.readbyqxmd.com/read/27795481/gene-delivery-systems-by-the-combination-of-lipid-bubbles-and-ultrasound
#14
Yoichi Negishi, Yoko Endo-Takahashi, Kazuo Maruyama
Gene therapy is promising for the treatment of many diseases including cancers and genetic diseases. From the viewpoint of safety, ultrasound (US)-mediated gene delivery with nano/ microbubbles was recently developed as a novel non-viral vector system. US-mediated gene delivery using nano/microbubbles are able to produce transient changes in the permeability of the cell membrane after US-induced cavitation while reducing cellular damage and enables the tissue-specific or the site-specific intracellular delivery of gene both in vitro and in vivo...
October 28, 2016: Drug Discoveries & Therapeutics
https://www.readbyqxmd.com/read/27792193/tocotrienol-nanoemulsion-platform-of-curcumin-elicit-elevated-apoptosis-and-augmentation-of-anticancer-efficacy-against-breast-and-ovarian-carcinomas
#15
Nelson Steuber, Kathy Vo, Ritambhara Wadhwa, Jordan Birch, Paulina Iacoban, Pedro Chavez, Tamer A Elbayoumi
Vitamin E (VE) tocotrienols (T3), recognized for their cancer-specific anti-proliferative and pro-apoptotic activities, have been previously fabricated into bio-active nanoemulsion (NE) formulations. Here, our viscosity-adapted δ-T3 NE platform was developed to additionally incorporate curcumin (CUR), which is known for its potent suppression of signaling pathways involved in malignant cell growth, survival and metastasis. Thanks to efficient 70:30 wt % surfactant mix of Lutrol F-127:VE-TPGS, in conjunction with optimal CUR loading, a prototype CUR in δ-T3 NE was successfully prepared...
October 26, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27784246/transferrin-conjugated-nanocarriers-as-active-targeted-drug-delivery-platforms-for-cancer-therapy
#16
Daniele R Nogueira-Librelotto, Cristiane F Codevilla, Ammad Farooqi, Clarice M B Rolim
A lot of effort has been devoted to achieving active targeting for cancer therapy in order to reach the right cells. Hence, increasingly it is being realized that active-targeted nanocarriers notably reduce off-target effects, mainly because of targeted localization in tumors and active cellular uptake. In this context, by taking advantage of the overexpression of transferrin receptors on the surface of tumor cells, transferrin-conjugated nanodevices have been designed, in hope that the biomarker grafting would help to maximize the therapeutic benefit and to minimize the side effects...
October 26, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27770912/biocompatible-cationic-pullulan-g-desoxycholic-acid-g-pei-micelles-used-to-co-deliver-drug-and-gene-for-cancer-therapy
#17
Lili Chen, Fangling Ji, Yongming Bao, Jing Xia, Lianying Guo, Jingyun Wang, Yachen Li
The greatest crux in the combination of chemotherapy and gene therapy is the construction of a feasible and biocompatible carrier for loading the therapeutic drug and gene simultaneously. Here, a new amphiphilic bifunctional pullulan derivative (named as PDP) synthesized by grafting lipophilic desoxycholic acid and low-molecular weight (1kDa) branched polyethylenimine onto the backbone of pullulan was evaluated as a nano-carrier for the co-delivery of drug and gene for potential cancer therapy. PDP exhibited good blood compatibility and low cytotoxicity in the hemolysis and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays, respectively...
January 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27764711/comparative-assessment-of-lipid-based-nano-carrier-systems-for-dendritic-cell-based-targeting-of-tumor-re-initiating-cells-in-gynecological-cancers
#18
Arpit Bhargava, Dinesh K Mishra, Subodh K Jain, Rupesh K Srivastava, Nirmal K Lohiya, Pradyumna K Mishra
We aimed to identify an optimum nano-carrier system to deliver tumor antigen to dendritic cells (DCs) for efficient targeting of tumor reinitiating cells (TRICs) in gynecological malignancies. Different lipid based nano-carrier systems i.e. liposomes, ethosomes and solid lipid nanoparticles (SLNPs) were examined for their ability to activate DCs in allogeneic settings. Out of these three, the most optimized formulation was subjected for cationic and mannosylated surface modification and pulsed with DCs for specific targeting of tumor cells...
October 17, 2016: Molecular Immunology
https://www.readbyqxmd.com/read/27762587/intracellular-fate-of-polymer-therapeutics-investigated-by-fluorescence-lifetime-imaging-and-fluorescence-pattern-analysis
#19
J Panek, E Koziolova, P Stepanek, T Etrych, O Janouskova
Nanocarriers bearing anticancer drugs are promising candidates to improve the efficacy of cancer therapy and minimize side effects. The most potent cytostatics used in the treatment of various cancers are anthracyclines, e.g. doxorubicin or pirarubicin. Recently, polymer therapeutics carrying anthracyclines have been intensively studied. The precise characterization of in vitro nanocarrier biological behavior brings a better understanding of the nanocarrier characteristics and enables prediction of the behavior of the nanocarrier during in vivo application...
October 20, 2016: Physiological Research
https://www.readbyqxmd.com/read/27759052/nanostructured-boron-nitride-with-high-water-dispersibility-for-boron-neutron-capture-therapy
#20
Bikramjeet Singh, Gurpreet Kaur, Paviter Singh, Kulwinder Singh, Baban Kumar, Ankush Vij, Manjeet Kumar, Rajni Bala, Ramovatar Meena, Ajay Singh, Anup Thakur, Akshay Kumar
Highly water dispersible boron based compounds are innovative and advanced materials which can be used in Boron Neutron Capture Therapy for cancer treatment (BNCT). Present study deals with the synthesis of highly water dispersible nanostructured Boron Nitride (BN). Unique and relatively low temperature synthesis route is the soul of present study. The morphological examinations (Scanning/transmission electron microscopy) of synthesized nanostructures showed that they are in transient phase from two dimensional hexagonal sheets to nanotubes...
October 19, 2016: Scientific Reports
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