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https://www.readbyqxmd.com/read/28229535/enrichment-and-viability-inhibition-of-circulating-tumor-cells-on-a-dual-acid-responsive-composite-nanofiber-film
#1
Wenqian Wang, Yaya Cheng, Yansheng Li, Hao Zhou, Li-Ping Xu, Yongqiang Wen, Liang Zhao, Xueji Zhang
The formation and metastatic colonization of circulating tumor cells (CTCs) are responsible for the vast majority of cancer-related deaths. Over the last decade, drug delivery system (DDS) has been rapidly developed with nanotechnology arising, however, most of the reported tumor-targeting DDSs were just able to deliver drugs to the solid tumor cells but not CTCs. In here, a novel drug delivery system was constructed with composite nanofiber film to inhibit the viability of circulating tumor cells (CTCs). In this system, gold nanoparticles (Au NPs) were functionalized with doxorubicin (DOX) through an acid-responsive cleavable linker to get the Au-DOX NPs...
February 23, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28228077/antioxidant-nanoplatforms-for-dermal-delivery-melatonin
#2
Aroha Belen Sánchez Milán, Ana C Calpena Campmany, Beatriz Clares Naveros
Melatonin (MLT) is emerging as a promising therapeutic agent, mainly due to its role as antioxidant. Substantial evidences show that melatonin is potentially effective on a variety of diseases as cancer, inflammation and neurodegenerative diseases. The excellent antioxidant capacity with pharmacokinetics characteristics and the emerging search for new pharmaceutical nanotechnology based systems, make it particularly attractive to elaborate nanoplatforms based on MLT for biomedical or cosmetic dermal applications...
February 22, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28223185/nanomedicine-as-a-potent-strategy-in-melanoma-tumor-microenvironment
#3
REVIEW
Vincent Pautu, Daniela Leonetti, Elise Lepeltier, Nicolas Clere, Catherine Passirani
Melanoma originated from melanocytes is the most aggressive type of skin cancer. Despite considerable progresses in clinical treatment with the discovery of BRAF or MEK inhibitors and monoclonal antibodies, the durability of response to treatment is often limited to the development of acquired resistance and systemic toxicity. The limited success of conventional treatment highlights the importance of understanding the role of melanoma tumor microenvironment in tumor developement and drug resistance. Nanoparticles represent a promising strategy for the development of new cancer treatments able to improve the bioavailability of drugs and increase their penetration by targeting specifically tumours cells and/or tumour environment...
February 18, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28217434/gold-nanoparticle-based-platforms-for-circulating-cancer-marker-detection
#4
Xiaohua Huang, Ryan O'Connor, Elyahb Allie Kwizera
Detection of cancer-related circulating biomarkers in body fluids has become a cutting-edge technology that has the potential to noninvasively screen cancer, diagnose cancer at early stage, monitor tumor progression, and evaluate therapy responses. Traditional molecular and cellular detection methods are either insensitive for early cancer intervention or technically costly and complicated making them impractical for typical clinical settings. Due to their exceptional structural and functional properties that are not available from bulk materials or discrete molecules, nanotechnology is opening new horizons for low cost, rapid, highly sensitive, and highly specific detection of circulating cancer markers...
2017: Nanotheranostics (Syd)
https://www.readbyqxmd.com/read/28203204/circulating-tumor-cells-from-theory-to-nanotechnology-based-detection
#5
REVIEW
Yue Ming, Yuanyuan Li, Haiyan Xing, Minghe Luo, Ziwei Li, Jianhong Chen, Jingxin Mo, Sanjun Shi
Cancer stem cells with stem-cell properties are regarded as tumor initiating cells. Sharing stem-cell properties, circulating tumor cells (CTCs) are responsible for the development of metastasis, which significant affects CTC analysis in clinical practice. Due to their extremely low occurrence in blood, however, it is challenging to enumerate and analyze CTCs. Nanotechnology is able to address the problems of insufficient capture efficiency and low purity of CTCs owing to the unique structural and functional properties of nanomaterials, showing strong promise for CTC isolation and detection...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28198106/in-vitro-microfluidic-models-of-tumor-microenvironment-to-screen-transport-of-drugs-and-nanoparticles
#6
REVIEW
Altug Ozcelikkale, Hye-Ran Moon, Michael Linnes, Bumsoo Han
Advances in nanotechnology have enabled numerous types of nanoparticles (NPs) to improve drug delivery to tumors. While many NP systems have been proposed, their clinical translation has been less than anticipated primarily due to failure of current preclinical evaluation techniques to adequately model the complex interactions between the NP and physiological barriers of tumor microenvironment. This review focuses on microfluidic tumor models for characterization of delivery efficacy and toxicity of cancer nanomedicine...
February 14, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28192672/smart-nanostructures-for-cargo-delivery-uncaging-and-activating-by-light
#7
Mahdi Karimi, Parham Sahandi Zangabad, Soodeh Baghaee-Ravari, Mahdi Ghazizadeh, Hamed Mirshekari, Michael R Hamblin
Nanotechnology has begun to play a remarkable role in various fields of science and technology. In biomedical applications, nanoparticles have opened new horizons, especially for biosensing, targeted delivery of therapeutics, etc. Among drug delivery systems (DDSs), smart nanocarriers that can respond to specific stimuli in their local environment represent a growing field. Nanoplatforms that can be activated by an external application of light, can be used for a wide variety of photo-activated therapies, (especially light-triggered DDSs) relying on photo-isomerization, photo-crosslinking/uncrosslinking, photo-reduction, etc...
February 13, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28191450/remotely-triggered-nano-theranostics-for-cancer-applications
#8
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/28176942/nanomedicine-and-cancer-immunotherapy-focus-on-indoleamine-2-3-dioxygenase-inhibitors
#9
REVIEW
Bilal Zulfiqar, Amnah Mahroo, Kaenat Nasir, Rai Khalid Farooq, Nasir Jalal, Muhammad Usman Rashid, Kashif Asghar
Nanomedicine application in cancer immunotherapy is currently one of the most challenging areas in cancer therapeutic intervention. Innovative solutions have been provided by nanotechnology to deliver cytotoxic agents to the cancer cells partially affecting the healthy cells of the body during the process. Nanoparticle-based drug delivery is an emerging approach to stimulate the immune responses against cancer. The inhibition of indoleamine 2,3-dioxygenase (IDO) is a pivotal area of research in cancer immunotherapy...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28167261/redox-and-ph-responsive-gold-nanoparticles-as-a-new-platform-for-simultaneous-triple-anti-cancer-drugs-targeting
#10
Marjan Ghorbani, Hamed Hamishehkar
Cancer is considered to be one of the leading causes of morbidity and mortality worldwide and nanotechnology was shown to have a unique potential to enhance the therapeutic performance of anti-cancer agents. A novel dual stimuli-responsive polyethylene glycol (PEG) block copolymer was synthesized for the decoration and stabilization of gold nanoparticles (NPs) to carry multiple anti-cancer drugs, doxorubicin (DOX), methotrexate (MTX) and 6-mercaptopurine (MP). DOX, MTX and MP were successfully loaded (the loading capacity of 37%, 12%, and 49%, respectively) into the NPs by ionic interaction (DOX and MTX) and disulphide-covalent bond formation (MP) in the polymeric shell of NPs...
February 3, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28159640/focused-ultrasound-triggered-release-of-tyrosine-kinase-inhibitor-from-thermosensitve-liposomes-for-treatment-of-renal-cell-carcinoma
#11
Caleb Abshire, Hakm Y Murad, Jaspreet S Arora, James Liu, Sree Harsha Mandava, Vijay T John, Damir B Khismatullin, Benjamin R Lee
This study reports, for the first time, development of tyrosine kinase inhibitor-loaded, thermosensitive liposomes (TKI/TSLs) and their efficacy for treatment of renal cell carcinoma when triggered by focused ultrasound (FUS). Uptake of these nanoparticles into renal cancer cells was visualized with confocal and fluorescent imaging of rhodamine B-loaded liposomes. The combination of TKI/TSLs and focused ultrasound was tested in an in vitro tumor model of renal cell carcinoma. According to MTT cytotoxic assay and flow cytometric analysis the combined treatment led to the least viability (23...
January 31, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28157583/identification-of-high-independent-prognostic-value-of-nanotechnology-based-circulating-tumor-cell-enumeration-in-first-line-chemotherapy-for-metastatic-breast-cancer-patients
#12
Xiao-Ran Liu, Bin Shao, Jia-Xi Peng, Hui-Ping Li, Yan-Lian Yang, Wei-Yao Kong, Guo-Hong Song, Han-Fang Jiang, Xu Liang, Ying Yan
Enumeration of circulating tumor cells (CTCs) is a promising tool in the management of metastatic breast cancer (MBC). This study investigated the capturing efficiency and prognostic value of our previously reported peptide-based nanomagnetic CTC isolation system (Pep@MNPs). We counted CTCs in blood samples taken at baseline (n = 102) and later at patients' first clinical evaluation after starting firstline chemotherapy (n = 72) in a cohort of women treated for MBC. Their median follow-up was 16.3 months (range: 9...
January 31, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28156178/polyphenols-delivery-by-polymeric-materials-challenges-in-cancer-treatment
#13
Orazio Vittorio, Manuela Curcio, Monica Cojoc, Gerardo F Goya, Silke Hampel, Francesca Iemma, Anna Dubrovska, Giuseppe Cirillo
Nanotechnology can offer different solutions for enhancing the therapeutic efficiency of polyphenols, a class of natural products widely explored for a potential applicability for the treatment of different diseases including cancer. While possessing interesting anticancer properties, polyphenols suffer from low stability and unfavorable pharmacokinetics, and thus suitable carriers are required when planning a therapeutic protocol. In the present review, an overview of the different strategies based on polymeric materials is presented, with the aim to highlight the strengths and the weaknesses of each approach and offer a platform of ideas for researchers working in the field...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28155935/folate-binding-protein-therapeutic-natural-nanotechnology-for-folic-acid-methotrexate-and-leucovorin
#14
Rachel L Merzel, Sarah M Boutom, Junjie Chen, Carolina Frey, Kerby Shedden, E Neil G Marsh, Mark M Banaszak Holl
Blood serum proteins play a critical role in the transport, biodistribution, and efficacy of systemically-delivered therapeutics. Here, we have investigated the concentration- and ligand-dependent aggregation of folate binding protein (FBP), focusing in particular on folic acid, an important vitamin and targeting agent; methotrexate, an antifolate drug used to treat cancer and rheumatoid arthritis; and leucovorin which is used to decrease methotrexate toxicity. We employed atomic force microscopy to characterize, on a particle-by-particle basis, the volumes of the FBP nanoparticles that form upon ligand binding...
February 3, 2017: Nanoscale
https://www.readbyqxmd.com/read/28155624/past-recent-progresses-and-future-perspectives-of-nanotechnology-applied-to-antifungals-agents
#15
Luís Roque, Jesús Molpeceres, Cláudia Reis, Patrícia Rijo, Catarina Pinto Reis
Candida species remain a significant cause of nosocomial bloodstream infections, associated with prolonged hospital stay in the ICU and high healthcare cost. The incidence of Candida is very high in certain risk groups of patients (AIDS, diabetes, cancer, etc.). Recent developments of nanotechnology have strongly contributed to the design of new multifunctional drug carriers that improve drug bioavailability through a controlled and prolonged release profile or even through a more specific targeted delivery of the antifungal agent...
February 1, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28155623/pancreatic-cancer-therapy-review-from-classic-therapeutic-agents-to-modern-nanotechnologies
#16
Ana Rebelo, Jesús Molpeceres, Patrícia Rijo, Catarina Pinto Reis
Pancreatic cancer remains one of the most lethal cancers worldwide, with an extremely poor prognosis. This cancer is considered the 5th leading cause of cancer related death. The median survival after diagnosis is generally 2-8 months and five-year survival rate is less than 5%. In recent years, nanotechnology is emerging as a rising approach for drug delivery since it has opened up new landscapes in medicine through introduction of smart nanocarrier systems that can selectively deliver the therapeutic agent in a specific region and in appropriate levels, reducing the adverse side effects...
February 1, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28154264/modifying-cationic-liposomes-with-cholesteryl-peg-prevents-their-aggregation-in-human-urine-and-enhances-cellular-uptake-by-bladder-cancer-cells
#17
Takashi Nakamura, Yosuke Noma, Yu Sakurai, Hideyoshi Harashima
Intravesical drug delivery by cationic liposomes (Cat-LPs) represents a potent nanotechnology for enhancing therapeutic effects against bladder disorders. However, preventing the aggregation of Cat-LPs in urine poses a significant barrier. We report on an examination of the effect of modifying liposomes with polyethylene glycol (PEG) lipids to prevent Cat-LPs from aggregating in human urine. Although Cat-LPs underwent significant aggregation in human urine, introducing 5 mol% of PEG2k lipid or 2 mol% of PEG5k lipid completely inhibited the aggregation of the Cat-LPs...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28151021/novel-nanoparticulate-systems-for-lung-cancer-therapy-an-updated-review
#18
Asadullah Madni, Amna Batool, Sobia Noreen, Irsah Maqbool, Faizza Rehman, Prince Muhammad Kashif, Nayab Tahir, Ahmad Raza
Lung cancer is the leading cause of cancer-related deaths in the world. Conventional therapy for lung cancer is associated with lack of specificity and access to the normal cells resulting in cytotoxicity, reduced cellular uptake, drug resistance, and rapid drug clear from the body. The emergence of nanotechnology has revolutionized the treatment of lung cancer. The focus of nanotechnology is to target tumor cells with improved bioavailability and reduced toxicity. In the recent years, nanoparticulate systems have extensively been exploited in order to overcome the obstacles in treatment of lung cancer...
February 2, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28150216/neutron-activatable-nanoparticles-for-intraperitoneal-radiation-therapy
#19
Derek Hargrove, Xiuling Lu
Intraperitoneal internal radiation therapy is a cancer treatment option that is employed in situations where surgical resection, systemic chemotherapy, and external beam radiotherapy are not amenable for patients. However, exposure of noncancerous tissues to radiation continues to be a hindrance to safe and effective treatment of patients. In addition, reducing prolonged radiation exposure of personnel during preparation of internal radiation therapy agents makes their manufacture complicated and hazardous...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28150207/nanotechnology-based-cancer-vaccine
#20
Aws Alshamsan
Nanotechnology offers invaluable tools to tailor cancer vaccines in order to generate robust antitumor immune response. Among the types of vehicles for cancer vaccines, nanoparticles (NPs) are easier to produce with better scalability. Several nanostructures have been discussed in literature as potential delivery systems for cancer antigens. Here, we focus on polymeric NPs fabricated from poly(D,L-lactic-co-glycolic) acid (PLGA). We describe how to prepare and characterize such NPs loaded with ovalbumin (OVA) antigen and immune adjuvant monophosphoryl lipid A (MPLA)...
2017: Methods in Molecular Biology
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