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https://www.readbyqxmd.com/read/28440701/yeast-capsules-for-targeted-delivery-the-future-of-nanotherapy
#1
Xiankang Hu, Jianxiang Zhang
No abstract text is available yet for this article.
April 25, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28428052/opening-eyes-to-nanomedicine-where-we-are-challenges-and-expectations-on-nanotherapy-for-diabetic-retinopathy
#2
REVIEW
Elisa J Campos, António Campos, João Martins, António Francisco Ambrósio
People affected with ocular diseases will significantly increase over the next decades, and, consequently, a substantial increase in health costs is expected. Diabetic retinopathy is the most common chronic complication of diabetes. The treatment of eye diseases affecting the posterior segment, such as diabetic retinopathy, is quite challenging due to the anatomy, physiology and biochemistry of the eye. Therefore, the development of new therapeutics for posterior eye diseases has been a major focus of pharmaceutical research in the area of vision sciences...
April 17, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28427246/nanotechnology-and-diabetic-wound-healing-a-review
#3
Dinesh Kumar Chellappan, Yap Yenese, Chew Chian Wei, Gaurav Gupta
The incidence of diabetes has been on the rise and the rate of rise since the turn of this century has been phenomenal. One of the various battling issues faced by diabetics all over the globe is the management of diabetic wounds. Currently there are several management strategies to deal with the treatment of diabetic wounds. The conventional methods have several limitations. One of the major limitations is the rate and progression of healing of a diabetic wound when adopting a conventional diabetic wound management therapy...
April 21, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28425224/nanocarrier-mediated-retinal-drug-delivery-overcoming-ocular-barriers-to-treat-posterior-eye-diseases
#4
REVIEW
Rohit Bisht, Abhirup Mandal, Jagdish K Jaiswal, Ilva D Rupenthal
Effective drug delivery to the retina still remains a challenge due to ocular elimination mechanisms and complex barriers that selectively limit the entry of drugs into the eye. To overcome these barriers, frequent intravitreal injections are currently used to achieve high drug concentrations in vitreous and retina. However, these repetitive injections may result in several side effects. Recent advancements in the field of nanoparticle-based drug delivery could overcome some of these unmet needs and various preclinical studies conducted to date have demonstrated promising results of nanotherapies in the treatment of retinal diseases...
April 20, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28408882/targeted-nanotechnology-in-glioblastoma-multiforme
#5
REVIEW
Talita Glaser, Inbo Han, Liquan Wu, Xiang Zeng
Gliomas, and in particular glioblastoma multiforme, are aggressive brain tumors characterized by a poor prognosis and high rates of recurrence. Current treatment strategies are based on open surgery, chemotherapy (temozolomide) and radiotherapy. However, none of these treatments, alone or in combination, are considered effective in managing this devastating disease, resulting in a median survival time of less than 15 months. The efficiency of chemotherapy is mainly compromised by the blood-brain barrier (BBB) that selectively inhibits drugs from infiltrating into the tumor mass...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28403792/nanocarriers-in-improving-chemotherapy-of-multidrug-resistant-tumors-key-developments-and-perspective
#6
Dimitry A Chistiakov, Veronika A Myasoedova, Alexander N Orekhov, Yuri V Bobryshev
The multidrug resistance (MDR) of tumor cells significantly reduces the efficiency of traditional anticancer therapy. Tumor MDR is complex and involves several mechanisms such as decreased drug uptake, increased drug efflux, enhanced drug exocytosis, increased drug detoxification and inactivation by drug-metabolizing enzymes, altered drug targets due to genetic and epigenetic modifications, altered DNA repair, and impaired apoptotic pathways. Implementation of nanoparticles can markedly improve drug delivery through increased stability in the plasma, prolonged half-life, enhanced specificity of transfer, and advanced drug accumulation and retention in the tumor cells...
April 7, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28400793/the-exciting-potential-of-nanotherapy-in-brain-tumor-targeted-drug-delivery-approaches
#7
REVIEW
Vivek Agrahari
Delivering therapeutics to the central nervous system (CNS) and brain-tumor has been a major challenge. The current standard treatment approaches for the brain-tumor comprise of surgical resection followed by immunotherapy, radiotherapy, and chemotherapy. However, the current treatments are limited in providing significant benefits to the patients and despite recent technological advancements; brain-tumor is still challenging to treat. Brain-tumor therapy is limited by the lack of effective and targeted strategies to deliver chemotherapeutic agents across the blood-brain barrier (BBB)...
February 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28398005/nanotherapy-for-duchenne-muscular-dystrophy
#8
REVIEW
Michael E Nance, Chady H Hakim, N Nora Yang, Dongsheng Duan
Duchenne muscular dystrophy (DMD) is a lethal X-linked childhood muscle wasting disease caused by mutations in the dystrophin gene. Nanobiotechnology-based therapies (such as synthetic nanoparticles and naturally existing viral and nonviral nanoparticles) hold great promise to replace and repair the mutated dystrophin gene and significantly change the disease course. While a majority of DMD nanotherapies are still in early preclinical development, several [such as adeno-associated virus (AAV)-mediated systemic micro-dystrophin gene therapy] are advancing for phase I clinical trials...
April 11, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28393881/tranilast-induced-stress-alleviation-in-solid-tumors-improves-the-efficacy-of-chemo-and-nanotherapeutics-in-a-size-independent-manner
#9
Panagiotis Papageorgis, Christiana Polydorou, Fotios Mpekris, Chrysovalantis Voutouri, Eliana Agathokleous, Constantina P Kapnissi-Christodoulou, Triantafyllos Stylianopoulos
Accumulation of mechanical stresses during cancer progression can induce blood and lymphatic vessel compression, creating hypo-perfusion, hypoxia and interstitial hypertension which decrease the efficacy of chemo- and nanotherapies. Stress alleviation treatment has been recently proposed to reduce mechanical stresses in order to decompress tumor vessels and improve perfusion and chemotherapy. However, it remains unclear if it improves the efficacy of nanomedicines, which present numerous advantages over traditional chemotherapeutic drugs...
April 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28285930/exploiting-the-cancer-niche-tumor-associated-macrophages-and-hypoxia-as-promising-synergistic-targets-for-nano-based-therapy
#10
REVIEW
Vera L Silva, Wafa' T Al-Jamal
The tumor microenvironment has been widely exploited as an active participant in tumor progression. Extensive reports have defined the dual role of tumor-associated macrophages (TAMs) in tumor development. The protumoral effect exerted by the M2 phenotype has been correlated with a negative outcome in most solid tumors. The high infiltration of immune cells in the hypoxic cores of advanced solid tumors leads to a chain reaction of stimuli that enhances the expression of protumoral genes, thrives tumor malignancy, and leads to the emergence of drug resistance...
March 8, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28263915/synthetic-nanocarriers-for-the-delivery-of-polynucleotides-to-the-eye
#11
Sofia M Saraiva, Vanessa Castro-López, Covadonga Pañeda, María José Alonso
This review is a comprehensive analysis of the progress made so far on the delivery of polynucleotide-based therapeutics to the eye, using synthetic nanocarriers. Attention has been addressed to the capacity of different nanocarriers for the specific delivery of polynucleotides to both, the anterior and posterior segments of the eye, with emphasis on their ability to (i) improve the transport of polynucleotides across the different eye barriers; (ii) promote their intracellular penetration into the target cells; (iii) protect them against degradation and, (iv) deliver them in a long-term fashion way...
March 2, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28235723/bypassing-multidrug-resistant-ovarian-cancer-using-ultrasound-responsive-doxorubicin-curcumin-co-deliver-alginate-nanodroplets
#12
Fatemeh Baghbani, Fathollah Moztarzadeh
Ultrasound-responsive perfluorocarbon nanoemulsions are a class of new multifunctional smart nanocarriers which combine diagnostic properties with therapeutic properties and release their drug payload in a controlled manner in response to ultrasound. Therefore, combination therapy using chemotherapeutic and chemosensitizing agents co-entrapped in these nanocarriers seems beneficial for cancer treatment. In the present study, multifunctional smart alginate/perfluorohexane nanodroplets were developed for co-delivery of doxorubicin and curcumin (a strong chemosensitizer)...
May 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28116129/citrate-functionalized-mn3o4-in-nanotherapy-of-hepatic-fibrosis-by-oral-administration
#13
Aniruddha Adhikari, Nabarun Polley, Soumendra Darbar, Damayanti Bagchi, Samir Kumar Pal
AIM: To test the potential of orally administered citrate functionalized Mn3O4 nanoparticles (C-Mn3O4 NPs) as a therapeutic agent against hepatic fibrosis and associated chronic liver diseases. MATERIALS & METHODS: C-Mn3O4 NPs were synthesized and the pH dependent antioxidant mechanism was characterized by in vitro studies. CCl4 intoxicated mice were orally treated with C-Mn3O4 NPs to test its in vivo antioxidant and antifibrotic ability. RESULTS: We demonstrated ultrahigh efficacy of the C-Mn3O4 NPs in treatment of chronic liver diseases such as hepatic fibrosis and cirrhosis in mice compared with conventional medicine silymarin without any toxicological implications...
December 2016: Future Science OA
https://www.readbyqxmd.com/read/28075596/yeast-microcapsule-mediated-targeted-delivery-of-diverse-nanoparticles-for-imaging-and-therapy-via-the-oral-route
#14
Xing Zhou, Xiangjun Zhang, Songling Han, Yin Dou, Mengyu Liu, Lin Zhang, Jiawei Guo, Qing Shi, Genghao Gong, Ruibing Wang, Jiang Hu, Xiaohui Li, Jianxiang Zhang
Targeting of nanoparticles to distant diseased sites after oral delivery remains highly challenging due to the existence of many biological barriers in the gastrointestinal tract. Here we report targeted oral delivery of diverse nanoparticles in multiple disease models, via a "Trojan horse" strategy based on a bioinspired yeast capsule (YC). Diverse charged nanoprobes including quantum dots (QDs), iron oxide nanoparticles (IONPs), and assembled organic fluorescent nanoparticles can be effectively loaded into YC through electrostatic force-driven spontaneous deposition, resulting in different diagnostic YC assemblies...
January 17, 2017: Nano Letters
https://www.readbyqxmd.com/read/28042341/anti-angiogenic-nanotherapy-inhibits-airway-remodeling-and-hyper-responsiveness-of-dust-mite-triggered-asthma-in-the-brown-norway-rat
#15
Gregory M Lanza, John Jenkins, Anne H Schmieder, Aigul Moldobaeva, Grace Cui, Huiying Zhang, Xiaoxia Yang, Qiong Zhong, Jochen Keupp, Ismail Sergin, Krishna S Paranandi, Lindsey Eldridge, John S Allen, Todd Williams, Michael J Scott, Babak Razani, Elizabeth M Wagner
Although angiogenesis is a hallmark feature of asthmatic inflammatory responses, therapeutic anti-angiogenesis interventions have received little attention. Objective: Assess the effectiveness of anti-angiogenic Sn2 lipase-labile prodrugs delivered via αvβ3-micellar nanotherapy to suppress microvascular expansion, bronchial remodeling, and airway hyper-responsiveness in Brown Norway rats exposed to serial house dust mite (HDM) inhalation challenges. Results: Anti-neovascular effectiveness of αvβ3-mixed micelles incorporating docetaxel-prodrug (Dxtl-PD) or fumagillin-prodrug (Fum-PD) were shown to robustly suppress neovascular expansion (p<0...
2017: Theranostics
https://www.readbyqxmd.com/read/28027539/construction-and-comparison-of-different-nanocarriers-for-co-delivery-of-cisplatin-and-curcumin-a-synergistic-combination-nanotherapy-for-cervical-cancer
#16
Changming Li, Xiangcheng Ge, Liguo Wang
PURPOSE: Co-delivery of two or more drugs into the same cancer cells or tissues in the same nanocarriers provides a new paradigm in cancer treatment. In this study, two kinds of nanocarriers: lipid-polymer hybrid nanoparticles (LPNs) and polymeric nanoparticles (PNPs) were constructed and compared for co-delivery of cisplatin (DDP) and curcumin (CUR). METHODS: DDP and CUR loaded LPNs (D/C/LPNs) and PNPs (D/C/PNPs) were prepared. Two kinds of nanocarriers were characterized in terms of particle size, zeta potential, drug encapsulation efficiency (EE), and drug release...
February 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27933426/characterization-of-the-first-fully-human-anti-tem1-scfv-in-models-of-solid-tumor-imaging-and-immunotoxin-based-therapy
#17
Xiaopeng Yuan, Mingjuan Yang, Xiang Chen, Xuhua Zhang, Shrey Sukhadia, Najia Musolino, Huijing Bao, Tingtao Chen, Chen Xu, Qirui Wang, Stephen Santoro, Daniel Ricklin, Jia Hu, Ruihe Lin, Wei Yang, Zhijun Li, Weijun Qin, Aizhi Zhao
Tumor endothelial marker 1 (TEM1) has been identified as a novel surface marker upregulated on the blood vessels and stroma in many solid tumors. We previously isolated a novel single-chain variable fragment (scFv) 78 against TEM1 from a yeast display scFv library. Here, we evaluated the potential applications of scFv78 as a tool for tumor molecular imaging, immunotoxin-based therapy and nanotherapy. Epitope mapping, three-dimensional structure docking and affinity measurements indicated that scFv78 could bind to both human and murine TEM1, with equivalent affinity, at a well-conserved conformational epitope...
March 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/27924726/neurodegenerative-disease-a-perspective-on-cell-based-therapy-in-the-new-era-of-cell-free-nano-therapy
#18
Su M Metcalfe, Sean Bickerton, Tarek Fahmy
Neurodegenerative diseases (NDD) result in irreversible loss of neurons. Dementia develops when disease-induced neuronal loss becomes sufficient to impair both memory and cognitive functioning and, globally, dementia is increasing to epidemic proportions as populations age. In the current era of regenerative medicine intense activity is asking, can loss of endogenous neurons be compensated by replacement with exogenously derived cells that have either direct, or indirect, neurogenic capacity? But, more recently, excitement is growing around an emerging alternative to the cell-based approach - here nanotechnology for targeted delivery of growth factor aims to support and expand resident central nervous system (CNS) stem cells for endogenous repair...
December 6, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27864344/targeting-tumor-associated-fibroblasts-for-therapeutic-delivery-in-desmoplastic-tumors
#19
Lei Miao, Qi Liu, C Michael Lin, Cong Luo, Yuhua Wang, Lina Liu, Weiyan Yin, Shihao Hu, William Y Kim, Leaf Huang
The off-target distribution of anticancer nanoparticles to fibroblasts creates a barrier to the effective treatment of desmoplastic tumors. However, we hypothesized that this nanoparticle detriment might be exploited to target the expression of secreted cytotoxic proteins from tumor-associated fibroblasts (TAF) as an anticancer strategy. In addressing this hypothesis, plasmids encoding the secretable TNF-related factor sTRAIL were loaded into lipid-coated protamine DNA complexes and administered by infusion in a murine xenograft model of human desmoplastic bladder carcinoma...
February 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/27815294/q-a-omid-farokhzad-on-nanomedicine-in-cancer
#20
(no author information available yet)
Omid Farokhzad, MD, director of the Center for Nanomedicine at Brigham and Women's Hospital in Boston, MA, discusses the challenges of moving nanotherapies from the realm of academic innovation to the clinic, stressing the importance of thoroughly understanding the nano-bio interface and its complexities for successful translation.
December 2016: Cancer Discovery
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