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protein nano-delivery

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https://www.readbyqxmd.com/read/29332574/biomacromolecular-based-fibers-in-nanomedicine-a-combination-of-drug-delivery-and-tissue-engineering
#1
Elham Arkan, Abbas Hemati Azandaryani, Pouran Moradipour, Leila Behbood
BACKGROUND: Biopolymers based materials (polysaccharides, lipids, proteins, and nucleic acids) are one of the basic resources in bio-engineering sciences because of desirable features. Moreover, nanobiotechnology innovates nanomaterial and associated technique in nano medicine (drug delivery and tissue engineering). METHODS: In the nano-medicine, fibers are introduced as a successful biomimetic extracellular matrix scaffolds and drug carrier systems. Electrospinning as a simple and cost-effective technique is used to design nanofibers...
January 12, 2018: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29327746/silk-nanoparticles-from-inert-supports-to-bioactive-natural-carriers-for-drug-delivery
#2
REVIEW
Barbara Crivelli, Sara Perteghella, Elia Bari, Milena Sorrenti, Giuseppe Tripodo, Theodora Chlapanidas, Maria Luisa Torre
Silk proteins have been studied and employed for the production of drug delivery (nano)systems. They show excellent biocompatibility, controllable biodegradability and non-immunogenicity and, if needed, their properties can be modulated by blending with other polymers. Silk fibroin (SF), which forms the inner core of silk, is a (bio)material officially recognized by the Food and Drug Administration for human applications. Conversely, the potential of silk sericin (SS), which forms the external shell of silk, could still be considered under evaluation...
January 12, 2018: Soft Matter
https://www.readbyqxmd.com/read/29319137/a-study-on-drug-delivery-tracing-with-radiolabeled-mesoporous-hydroxyapatite-nanoparticles-conjugated-with-2dg-dox-for-breast-tumor-cells
#3
Mahdiyeh Shamsi, Jafar Majidi Zolbanin, Babak Mahmoudian, Naime Majidi Zolbanin, Leili Aghebati Maleki, Mohammad Asghari Jafarabadi, Jalil Pirayesh Islamian
BACKGROUND: Mesoporous nanoparticles have a great potential in targeted therapy approaches due to their ideal properties for encapsulation of various drugs, proteins and also biologically active molecules. MATERIAL AND METHODS: We used mesoporous hydroxyapatite (HA) nanoparticles as a drug carrier and developed radiolabeled mesoporous HA containing of 2-deoxy-D-glucose (2DG) and Doxorubicin (DOX) with technetium-99m (99mTc) for imaging in in vitro and in vivo studies...
January 10, 2018: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/29276894/a-structure-based-assembly-screen-of-protein-cage-libraries-in-living-cells-experimentally-repacking-a-protein-protein-interface-to-recover-cage-formation-in-an-assembly-frustrated-mutant
#4
Thomas Cornell, Maziar S Ardejani, Jing Fu, Stephanie Newland, Yu Zhang, Brendan P Orner
Cage proteins, which assemble into often highly symmetric hollow nano-scale capsules, have great potential in ap-plications as far reaching as drug delivery, hybrid nanomaterial engineering, and catalysis. In addition, they are promising model systems to understand how cellular nanostructures are constructed through protein-protein interactions, and they are beginning to be used as scaffolds for synthetic biology approaches. Recently, there has been renewed interest in the engineering of protein cages and, in support of these strategies, we have recently described a fluorescence-based assay for protein cage assembly that is specific for certain oligomerization states and symmetry-related protein-protein interfaces...
December 25, 2017: Biochemistry
https://www.readbyqxmd.com/read/29276835/a-sensitive-high-throughput-and-robust-trapping-micro-lc-ms-strategy-for-quantification-of-biomarkers-and-antibody-biotherapeutics
#5
Ming Zhang, Bo An, Yang Qu, Shichen Shen, Wei Fu, Yuan-Ju Chen, Xue Wang, Rebeccah Young, John M Canty, Joseph P Balthasar, Keeley Murphy, Debadeep Bhattacharyya, Jonathan L Josephs, Luca Ferrari, Shaolian Zhou, Surendra Bansal, Faye Vazvaei, Jun Qu
For LC-MS-based targeted quantification of biotherapeutics/biomarkers in clinical and pharmaceutical environments, high sensitivity, high throughput, and excellent robustness are all essential, but remain challenging. For example, though nano-LC-MS has been employed to enhance analytical sensitivity, it falls short due to its low loading capacity, poor throughput and low operational robustness. Furthermore, high chemical noise in protein bioanalysis typically limits the sensitivity. Here we describe a novel Trapping-micro-LC-MS (T-µLC-MS) strategy for targeted protein bioanalysis, achieving high sensitivity with exceptional robustness and high throughput...
December 25, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29258739/combination-immunotherapy-of-muc1-mrna-nano-vaccine-and-ctla-4-blockade-effectively-inhibits-growth-of-triple-negative-breast-cancer
#6
Lina Liu, Yuhua Wang, Lei Miao, Qi Liu, Sara Musetti, Jun Li, Leaf Huang
Triple negative breast cancer (TNBC), which constitutes 10%-20% of all breast cancers, is associated with aggressive progression, a high rate of metastasis, and poor prognosis. The treatment of patients with TNBC remains a great clinical challenge. Preclinical reports support the combination immunotherapy of cancer vaccines and immune checkpoint blockades in non-immunogenic tumors. In this study, we constructed nanoparticles (NPs) to deliver an mRNA vaccine encoding tumor antigen MUC1 to dendritic cells (DCs) in lymph nodes to activate and expand tumor-specific T cells...
December 5, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/29251115/nano-encapsulation-of-bilirubin-in-pluronic-f127-chitosan-improves-uptake-in-%C3%AE-cells-and-increases-islet-viability-and-function-after-hypoxic-stress
#7
Bronwyn Fullagar, Wei Rao, Chen Gilor, Feng Xu, Xiaoming He, Christopher A Adin
Pancreatic islet transplantation is the only curative, noninvasive treatment for type 1 diabetes mellitus; however, high rates of cell death in the immediate postimplantation period have limited the success of this procedure. Bilirubin, an endogenous antioxidant, can improve the survival of murine pancreatic allografts during hypoxic stress but has poor solubility in aqueous solutions. We hypothesized that nano-encapsulation of bilirubin in pluronic 127-chitosan nanoparticle bilirubin (nBR) would improve uptake by murine pancreatic islet cells and improve their viability following hypoxic stress...
October 2017: Cell Transplantation
https://www.readbyqxmd.com/read/29246022/tumor-derived-exosomes-in-colorectal-cancer-progression-and-their-clinical-applications
#8
REVIEW
Jianbiao Zhou, Xiao-Lan Li, Zhi-Rong Chen, Wee-Joo Chng
Colorectal cancer (CRC) ranks as the third leading cause of cancer mortality in both of men and women worldwide due to its metastatic properties and resistance to current treatment. Recent studies have shown that tumor-derived exosomes play emerging roles in the development of cancer. Exosomes are nano-sized extracellular vesicles (EVs) that contain lipids, proteins, DNAs, and RNA species (mRNA, miRNA, long non-coding RNA). These exosomal cargos can be transferred locally and systemically, after taken by recipient cells, so exosomes represent a new form of intercellular communication...
November 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/29235345/mucus-and-cell-penetrating-nanoparticles-embedded-in-nano-into-micro-formulations-for-pulmonary-delivery-of-ivacaftor-in-cystic-fibrosis
#9
Barbara Porsio, Emanuela Fabiola Craparo, Nicolò Mauro, Gaetano Giammona, Gennara Cavallaro
Here, mucus-penetrating nanoparticles for pulmonary administration of Ivacaftor in patients with cystic fibrosis (CF) were produced with the dual aim to enhance Ivacaftor delivery to the airway epithelial cells, by a rapid diffusion through the mucus barrier and, at the same time, promote Ivacaftor lung cellular uptake. Pegylated and Tat-decorated Fluorescent Nanoparticles (FNPs) were produced by nanoprecipitation, starting by two synthetic copolymers and showed nanometric sizes (~70 nm), slightly negative ζ potential and high cytocompatibility towards human bronchial epithelium cells...
December 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29232886/the-diverse-range-of-possible-cell-membrane-interactions-with-substrates-drug-delivery-interfaces-and-mobility
#10
REVIEW
Hyun-Sook Jang
The cell membrane has gained significant attention as a platform for the development of bio-inspired nanodevices due to its immune-evasive functionalities and copious bio-analogs. This review will examine several uses of cell membranes such as (i) therapeutic delivery carriers with or without substrates (i.e., nanoparticles and artificial polymers) that have enhanced efficiency regarding copious cargo loading and controlled release, (ii) exploiting nano-bio interfaces in membrane-coated particles from the macro- to the nanoscales, which would help resolve the biomedical issues involved in biological interfacing in the body, and (iii) its effects on the mobility of bio-moieties such as lipids and/or proteins in cell membranes, as discussed from a biophysical perspective...
December 11, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29231058/efaverinz-and-nano-gold-loaded-mannosylated-niosomes-a-host-cell-targeted-topical-hiv-1-prophylaxis-via-thermogel-system
#11
Tanushree Malik, Gaurav Chauhan, Goutam Rath, Rohan N Kesarkar, Abhay S Chowdhary, Amit K Goyal
Sexual dissemination of Human Immunodeficiency Virus-1 (HIV-1) is the prime mode of its spread. Topical microbicidal approach has gained much attention, but no real success is observed till date, either due to toxicity or resistance of active moieties and the lack of efficient drug delivery approaches. In this research protocol, a unique combination approach of a standard drug moiety, that is, Efaverinz (EFV) and a nanometal, that is, gold nanoparticles (GNPs) was tried. Both these candidates were delivered through a mannosylated niosomal system, to exploit protein (lectins present on HIV host cells) - carbohydrate (oligosaccharides such as mannan present on HIV gp-120 receptor) interaction...
December 12, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29208276/development-of-novel-ph-sensitive-thiolated-chitosan-pmla-nanoparticles-for-amoxicillin-delivery-to-treat-helicobacter-pylori
#12
Muhammad Arif, Quan-Jiang Dong, Mazhar Ali Raja, Shah Zeenat, Zhe Chi, Chen-Guang Liu
The cysteine conjugated chitosan/PMLA multifunctional nanoparticles were synthesized as targeted Nano-drug delivery system to eradicate Helicobacter pylori. Helicobacter pylori specifically express urea transport protein on its membrane to carrying urea to the cytoplasm urease to supply ammonia that protects bacteria in the acid environment of the stomach. The clinical suitability of topical antimicrobial agents is required to get rid of Helicobacter pylori inside the inflamed basal region. In this work, cysteine conjugated chitosan derivative, Cys-CS for their mucoadhesive and anticoagulant properties was designed and synthesized, for the preparation of multifunctional nanoparticles...
February 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/29199588/recent-advances-in-nanoparticle-based-targeted-drug-delivery-systems-against-cancer-and-role-of-tumor-microenvironment
#13
Usman Ali Ashfaq, Muhammad Riaz, Erum Yasmeen, Muhammad Zubair Yousaf
Cancer is one of the major causes of death worldwide. The silent activation of cellular factors responsible for deviation from normal regulatory pathways leads to the development of cancer. Nano-biotechnology is a novel drug-delivery system with high potential of efficacy and accuracy to target lethal cancers. Various biocompatible nanoparticle (NP)-based drug-delivery systems such as liposomes, dendrimers, micelles, silica, quantum dots, and magnetic, gold, and carbon nanotubes have already been reported for successful targeted cancer treatment...
2017: Critical Reviews in Therapeutic Drug Carrier Systems
https://www.readbyqxmd.com/read/29183847/breath-figures-in-tissue-engineering-and-drug-delivery-state-of-the-art-and-future-perspectives
#14
REVIEW
Maria Teresa Calejo, Tanja Ilmarinen, Heli Skottman, Minna Kellomäki
The breath figure (BF) method is an easy, low-cost method to prepare films with a highly organized honeycomb-like porous surface. The particular surface topography and porous nature of these materials makes them valuable substrates for studying the complex effects of topography on cell fate, and to produce biomimetic materials with high performance in tissue engineering. Numerous researchers over the last two decades have studied the effects of the honeycomb topography on a variety of primary and immortalized cell lines, and drew important conclusions that can be translated to the construction of optimal biomaterials for cell culture...
November 25, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29165486/optical-control-of-mitochondrial-reductive-reactions-in-living-cells-using-an-electron-donor-acceptor-linked-molecule
#15
Yuta Takano, Reina Munechika, Vasudevanpillai Biju, Hideyoshi Harashima, Hiroshi Imahori, Yuma Yamada
It has been known for decades that intracellular redox reactions control various vital functions in living systems, which include the synthesis of biomolecules, the modulation of protein functions, and cell signaling. Although there have been several reports on the control of such functions using DNA and RNA, the non-invasive optical control of biological functions is an important ongoing challenge. In this study, a hybrid of an electron donor-acceptor linked molecule based on a ferrocene(Fc)-porphyrin(ZnP)-fullerene(C60) analogue and an elaborately designed nano-carrier, referred to herein as a MITO-Porter, resulted in a successful photoinduced intermolecular electron transfer reaction via the long-lived intramolecular charge separation, leading to site-specific reductive reactions in the mitochondria of living HeLa cells...
December 7, 2017: Nanoscale
https://www.readbyqxmd.com/read/29164777/formulation-and-characterization-of-poly-propylacrylic-acid-poly-lactic-co-glycolic-acid-blend-microparticles-for-ph-dependent-membrane-disruption-and-cytosolic-delivery
#16
Lawrence P Fernando, Jamal S Lewis, Brian C Evans, Craig L Duvall, Benjamin G Keselowsky
Poly(lactic-co-glycolic acid) (PLGA) is widely used as a vehicle for delivery of pharmaceutically relevant payloads. PLGA is readily fabricated as a nano- or microparticle (MP) matrix to load both hydrophobic and hydrophilic small molecular drugs as well as biomacromolecules such as nucleic acids and proteins. However, targeting such payloads to the cell cytosol is often limited by MP entrapment and degradation within acidic endolysosomes. Poly(propylacrylic acid) (PPAA) is a polyelectrolyte polymer with membrane disruptive capability triggered at low pH...
November 22, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29160134/surfactant-protein-a-nanobody-conjugated-liposomes-loaded-with-methylprednisolone-increase-lung-targeting-specificity-and-therapeutic-effect-for-acute-lung-injury
#17
Nan Li, Dong Weng, Shan-Mei Wang, Yuan Zhang, Shan-Shan Chen, Zhao-Fang Yin, Jiali Zhai, Judy Scoble, Charlotte C Williams, Tao Chen, Hui Qiu, Qin Wu, Meng-Meng Zhao, Li-Qin Lu, Xavier Mulet, Hui-Ping Li
The advent of nanomedicine requires novel delivery vehicles to actively target their site of action. Here, we demonstrate the development of lung-targeting drug-loaded liposomes and their efficacy, specificity and safety. Our study focuses on glucocorticoids methylprednisolone (MPS), a commonly used drug to treat lung injuries. The steroidal molecule was loaded into functionalized nano-sterically stabilized unilamellar liposomes (NSSLs). Targeting functionality was performed through conjugation of surfactant protein A (SPANb) nanobodies to form MPS-NSSLs-SPANb...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/29152304/in-situ-protein-templated-porous-protein-hydroxylapatite-nanocomposite-microspheres-for-ph-dependent-sustained-anticancer-drug-release
#18
Yajun Shuai, Shuxu Yang, Chenlin Li, Liangjun Zhu, Chuanbin Mao, Mingying Yang
Silk sericin, a water-soluble glue-like protein, is extensively used as a biomaterial due to its biocompatibility, hydrophilicity, biodegradability, and adequate resource. In addition, hydroxyapatite-based drug carriers are functionally efficient for drug or gene delivery due to their biodegradability, biocompatibility and easy metabolism in vivo. Herein, for the first time, this study used sericin, from a wild silkworm called Antheraea pernyi (A. pernyi), as a template to nucleate hydroxylapatite (HAp) nano-needles and form porous sericin-HAp nanocomposite microspheres as an anticancer drug carrier...
June 7, 2017: Journal of Materials Chemistry. B, Materials for Biology and Medicine
https://www.readbyqxmd.com/read/29147499/nano-microvehicles-for-efficient-delivery-and-bio-sensing-at-the-cellular-level
#19
S Campuzano, B Esteban-Fernández de Ávila, P Yáñez-Sedeño, J M Pingarrón, J Wang
A perspective review of recent strategies involving the use of nano/microvehicles to address the key challenges associated with delivery and (bio)sensing at the cellular level is presented. The main types and characteristics of the different nano/microvehicles used for these cellular applications are discussed, including fabrication pathways, propulsion (catalytic, magnetic, acoustic or biological) and navigation strategies, and relevant parameters affecting their propulsion performance and sensing and delivery capabilities...
October 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/29134085/gene-delivery-ability-of-polyethylenimine-and-polyethylene-glycol-dual-functionalized-nanographene-oxide-in-11-different-cell-lines
#20
Liping Wu, Jinshan Xie, Tan Li, Zihao Mai, Lu Wang, Xiaoping Wang, Tongsheng Chen
We recently developed a polyethylenimine (PEI) and polyethylene glycol (PEG) dual-functionalized reduced graphene oxide (GO) (PEG-nrGO-PEI, RGPP) for high-efficient gene delivery in HepG2 and Hela cell lines. To evaluate the feasibility and applicability of RGPP as a gene delivery carrier, we here assessed the transfection efficiency of RGPP on gene plasmids and siRNA in 11 different cell lines. Commercial polyalkyleneimine cation transfection reagent (TR) was used as comparison. In HepG2 cells, RGPP exhibited much stronger delivery ability for siRNA and large size plasmids than TR...
October 2017: Royal Society Open Science
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