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https://www.readbyqxmd.com/read/27926828/harnessing-cancer-cell-metabolism-for-theranostic-applications-using-metabolic-glycoengineering-of-sialic-acid-in-breast-cancer-as-a-pioneering-example
#1
REVIEW
Haitham A Badr, Dina M M AlSadek, Motawa E El-Houseini, Christopher T Saeui, Mohit P Mathew, Kevin J Yarema, Hafiz Ahmed
Abnormal cell surface display of sialic acids - a family of unusual 9-carbon sugars - is widely recognized as distinguishing feature of many types of cancer. Sialoglycans, however, typically cannot be identified with sufficiently high reproducibility and sensitivity to serve as clinically accepted biomarkers and similarly, almost all efforts to exploit cancer-specific differences in sialylation signatures for therapy remain in early stage development. In this report we provide an overview of important facets of glycosylation that contribute to cancer in general with a focus on breast cancer as an example of malignant disease characterized by aberrant sialylation...
November 25, 2016: Biomaterials
https://www.readbyqxmd.com/read/27924783/functionalized-gold-nanoparticles-manifested-as-potent-carriers-for%C3%A2-nucleolar-targeting
#2
Reza Shahbazi, Ilyas Ozcicek, Gurkan Ozturk, Kezban Ulubayram
It is generally known that gold nanoparticles are localised in the cytoplasm and, if synthesised in small sizes or functionalized with specific proteins, they enter the cell nucleus. However, there is no report emphasising the importance of surface functionalization in their accumulation in the nucleolus. Here, for the first time in the literature, it is proposed that functionalization of gold nanoparticles with a thin layer of polyethyleneimine (PEI) spearheads them to the nucleolus of hard-to-transfect post-mitotic dorsal root ganglion neurones in a size-independent manner...
January 13, 2017: Nanotechnology
https://www.readbyqxmd.com/read/27924159/in-vitro-and-in-vivo-evaluation-of-89-zr-ds-8273a-as-a-theranostic-for-anti-death-receptor-5-therapy
#3
Ingrid J G Burvenich, Fook-Thean Lee, Nancy Guo, Hui K Gan, Angela Rigopoulos, Adam C Parslow, Graeme J O'Keefe, Sylvia J Gong, Henri Tochon-Danguy, Stacey E Rudd, Paul S Donnelly, Masakatsu Kotsuma, Toshiaki Ohtsuka, Giorgio Senaldi, Andrew M Scott
Background: DS-8273a, an anti-human death receptor 5 (DR5) agonistic antibody, has cytotoxic activity against human cancer cells and induces apoptosis after specific binding to DR5. DS-8273a is currently being used in clinical Phase I trials. This study evaluated the molecular imaging of DR5 expression in vivo in mouse tumor models using SPECT/CT and PET/MRI, as a tool for drug development and trial design. Methods: DS-8273a was radiolabeled with indium-111 and zirconium-89. Radiochemical purity, immunoreactivity, antigen binding affinity and serum stability were assessed in vitro...
2016: Theranostics
https://www.readbyqxmd.com/read/27924157/biodegradable-nitrogen-doped-carbon-nanodots-for-non-invasive-photoacoustic-imaging-and-photothermal-therapy
#4
Changho Lee, Woosung Kwon, Songeun Beack, Donghyun Lee, Yoonsang Park, Hyemin Kim, Sei Kwang Hahn, Shi-Woo Rhee, Chulhong Kim
Multifunctional nanoparticles have been widely investigated for biomedical applications, such as imaging, therapy, and drug delivery. Especially, photoactive nanoparticles have received great attention as theranostic agents because of their heat-generating abilities after exposure to laser irradiation. However, photostability and safety issues have been the technical hurdles for further clinical applications. Here, we designed nitrogen (N)-doped carbon nanodots (N-CNDs) that have strong absorption in the near-infrared region, high photostability, and excellent biodegradability...
2016: Theranostics
https://www.readbyqxmd.com/read/27924155/versatile-ph-response-micelles-with-high-cell-penetrating-helical-diblock-copolymers-for-photoacoustic-imaging-guided-synergistic-chemo-photothermal-therapy
#5
Shengyu Shi, Yajing Liu, Yu Chen, Zhihuang Zhang, Yunsheng Ding, Zongquan Wu, Jun Yin, Liming Nie
With high optical absorption efficiency, near infrared (NIR) dyes have been proposed as theranostic agents for fluorescence imaging, photoacoustic imaging (PAI), and photothermal therapy (PTT). However, inherent hydrophobicity and short circulation time of small molecule hinder the further biomedical application. Herein smart amphiphilic copolymer was synthesized containing IR780/camptothecin@poly(ε-caprolactone) (IR780/CPT@PCL) as core, helical poly(phenyl isocyanide) (PPI) blocks as shell with the pH-responsive rhodamine B (RhB) moieties in the core-shell interface...
2016: Theranostics
https://www.readbyqxmd.com/read/27923841/biological-and-clinical-relevance-of-associated-genomic-alterations-in-myd88-l265p-and-non-l265p-mutated-diffuse-large-b-cell-lymphoma-analysis-of-361-cases
#6
Sydney Dubois, Pierre-Julien Viailly, Elodie Bohers, Philippe Bertrand, Philippe Ruminy, Vinciane Marchand, Catherine Maingonnat, Sylvain Mareschal, Jean-Michel Picquenot, Dominique Penther, Jean-Philippe Jais, Bruno Tesson, Pauline Peyrouze, Martin Figeac, Fabienne Desmots, Thierry Fest, Corinne Haioun, Thierry Lamy, Christiane Copie-Bergman, Bettina Fabiani, Richard Delarue, Frederic Peyrade, Marc André, Nicolas Ketterer, Karen Leroy, Gilles Salles, Thierry J Molina, Herve Tilly, Fabrice Jardin
PURPOSE: MYD88 mutations, notably the recurrent gain-of-function L265P variant, are a distinguishing feature of Activated B-Cell like (ABC) Diffuse Large B Cell Lymphoma (DLBCL), leading to constitutive NFkB pathway activation. The aim of this study was to examine the distinct genomic profiles of MYD88 mutant DLBCL, notably according to the presence of the L265P or other non-L265P MYD88 variants. EXPERIMENTAL DESIGN: A cohort of 361 DLBCL cases (94 MYD88 mutant and 267 MYD88 wild-type) was submitted to next generation sequencing (NGS) focusing on 34 genes in order to analyze associated mutations and copy number variations, as well as gene expression profiling, and clinical and prognostic analyses...
December 6, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27919057/principles-of-precision-medicine-in-stroke
#7
REVIEW
Jason D Hinman, Natalia S Rost, Thomas W Leung, Joan Montaner, Keith W Muir, Scott Brown, Juan F Arenillas, Edward Feldmann, David S Liebeskind
The era of precision medicine has arrived and conveys tremendous potential, particularly for stroke neurology. The diagnosis of stroke, its underlying aetiology, theranostic strategies, recurrence risk and path to recovery are populated by a series of highly individualised questions. Moreover, the phenotypic complexity of a clinical diagnosis of stroke makes a simple genetic risk assessment only partially informative on an individual basis. The guiding principles of precision medicine in stroke underscore the need to identify, value, organise and analyse the multitude of variables obtained from each individual to generate a precise approach to optimise cerebrovascular health...
October 19, 2016: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/27917409/gadolinium-functionalized-peptide-amphiphile-micelles-for-multimodal-imaging-of-atherosclerotic-lesions
#8
Sang Pil Yoo, Federico Pineda, John C Barrett, Christopher Poon, Matthew Tirrell, Eun Ji Chung
The leading causes of morbidity and mortality globally are cardiovascular diseases, and nanomedicine can provide many improvements including disease-specific targeting, early detection, and local delivery of diagnostic agents. To this end, we designed fibrin-binding, peptide amphiphile micelles (PAMs), achieved by incorporating the targeting peptide cysteine-arginine-glutamic acid-lysine-alanine (CREKA), with two types of amphiphilic molecules containing the gadoliniuim (Gd) chelator diethylenetriaminepentaacetic acid (DTPA), DTPA-bis(stearylamide)(Gd), and 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[(poly(ethylene glycol) (PEG))-2000]-DTPA(Gd) (DSPE-PEG2000-DTPA(Gd))...
November 30, 2016: ACS Omega
https://www.readbyqxmd.com/read/27916740/development-of-europium-doped-core-shell-silica-cobalt-ferrite-functionalized-nanoparticles-for-magnetic-resonance-imaging
#9
Bhavesh D Kevadiya, Aditya N Bade, Christopher Woldstad, Benson J Edagwa, JoEllyn M McMillan, Balasrinivasa R Sajja, Michael D Boska, Howard E Gendelman
: The size, shape and chemical composition of europium (Eu(3+)) cobalt ferrite (CFEu) nanoparticles were optimized for use as a "multimodal imaging nanoprobe" for combined fluorescence and magnetic resonance bioimaging. Doping Eu(3+) ions into a CF structure imparts unique bioimaging and magnetic properties to the nanostructure that can be used for real-time screening of targeted nanoformulations for tissue biodistribution assessment. The CFEu nanoparticles (size ∼7.2 nm) were prepared by solvothermal techniques and encapsulated into poloxamer 407-coated mesoporous silica (Si-P407) to form superparamagnetic monodisperse Si-CFEu nanoparticles with a size of ∼ 140 nm...
December 1, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27916607/current-status-of-biomarker-and-targeted-nanoparticle-development-the-precision-oncology-approach-for-pancreatic-cancer-therapy
#10
Lei Zhu, Charles Staley, David Kooby, Bassel El-Rays, Hui Mao, Lily Yang
Pancreatic cancer remains one of the major causes of cancer-related mortality. The majority of pancreatic cancer patients are diagnosed at the advanced stage with unresectable and drug resistant tumors. The new treatments with the combination of chemotherapy, molecular targeted therapy, and immunotherapy have shown modest effects on therapeutic efficacy and survival of the patients. Therefore, there is an urgent need to develop effective therapeutic approaches targeting highly heterogeneous pancreatic cancer cells and tumor microenvironments...
December 1, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27916566/extracellular-vesicle-mimetics-novel-alternatives-to-extracellular-vesicle-based-theranostics-drug-delivery-and-vaccines
#11
REVIEW
Oh Youn Kim, Jaewook Lee, Yong Song Gho
Extracellular vesicles are nano-sized spherical bilayered proteolipids encasing various components. Cells of all domains of life actively release these vesicles to the surroundings including various biological fluids. These extracellular vesicles are known to play pivotal roles in numerous pathophysiological functions. Extracellular vesicles have distinct characteristics, like high biocompatibility, safety, and nano-sized diameters that allow efficient drug loading capacity and long blood circulation half-life...
December 1, 2016: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/27915023/anisotropic-noble-metal-nanoparticles-synthesis-surface-functionalization-and-applications-in-biosensing-bioimaging-drug-delivery-and-theranostics
#12
REVIEW
Gokul Paramasivam, Namitharan Kayambu, Arul Maximus Rabel, Ashok K Sundramoorthy, Anandhakumar Sundaramurthy
Anisotropic nanoparticles have fascinated scientists and engineering communities for over a century because of their unique physical and chemical properties. In recent years, continuous advances in design and fabrication of anisotropic nanoparticles have opened new avenues for application in various areas of biology, chemistry and physics. Anisotropic nanoparticles have the plasmon absorption in the visible as well as near-infrared (NIR) region, which enable them to be used for crucial applications such as biological imaging, medical diagnostics and therapy ("theranostics")...
November 30, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27914862/neurotensin-regulation-induces-overexpression-and-activation-of-egfr-in-hcc-and-restores-response-to-erlotinib-and-sorafenib
#13
Zherui Wu, Antoine Galmiche, Jin Liu, Nicolas Stadler, Dominique Wendum, Evelyne Segal-Bendirdjian, Valerie Paradis, Patricia Forgez
Hepatocellular carcinoma (HCC) is the third leading cause of death from cancer due to the combination of late diagnosis and a lack of curative treatments. The identification of factors which promote tumor aggressiveness, and those that predict treatment responses, are a means to optimize the management of HCC patients. The complex of Neurotensin (NTS) and its high affinity receptor (NTSR1) has been shown to induce tumor growth and metastasis process in various cancers. In this paper, we propose that NTS and NTSR1 can assist in the management of HCC...
November 30, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27914343/fluorescence-and-drug-loading-properties-of-znse-mn-zns-paclitaxel-sio2-nanocapsules-templated-by-f127-micelles
#14
Tingting Zhao, Xin Liu, Yuebin Li, Mingguang Zhang, Jian He, Xuewen Zhang, Hui Liu, Xingguo Wang, Haoshuang Gu
Hydrophobic ZnSe:Mn/ZnS core-shell fluorescence quantum dots (QDs) and anticancer drug paclitaxel (PTX) have been co-loaded into folate conjugated hybrid silica nanocapsules via F127 micelles based soft-template method in a mild aqueous environment at room temperature. The encapsulation of QDs shows a F127: QDs mass ratio dependent behavior, which impact much on the morphology and optical properties of composite nanocapsules. These as prepared composite nanocapsules also exhibit good photoluminescence stability under the temperature ranges from 19°C to 49°C...
November 23, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27912846/new-insights-and-evolving-role-of-pegylated-liposomal-doxorubicin-in-cancer-therapy
#15
REVIEW
Alberto A Gabizon, Yogita Patil, Ninh M La-Beck
We herein review various pharmacological and clinical aspects of pegylated liposomal doxorubicin (PLD), the first nanomedicine to be approved for cancer therapy, and discuss the gap between its potent antitumor activity in preclinical studies and its comparatively modest achievements in clinical studies and limited use in clinical practice. PLD is a complex formulation of doxorubicin based on pharmaceutical nanotechnology with unique pharmacokinetic and pharmacodynamic properties. Its long circulation time with stable retention of the payload and its accumulation in tumors with high vascular permeability both result in important advantages over conventional chemotherapy...
November 2016: Drug Resistance Updates: Reviews and Commentaries in Antimicrobial and Anticancer Chemotherapy
https://www.readbyqxmd.com/read/27907865/biophysical-characterization-and-antineoplastic-activity-of-new-bis-thiosemicarbazonato-cu-ii-complexes
#16
Elisa Palma, Filipa Mendes, Goreti Ribeiro Morais, Inês Rodrigues, Isabel Cordeiro Santos, Maria Paula C Campello, Paula Raposinho, Isabel Correia, Sofia Gama, Dulce Belo, Vítor Alves, Antero J Abrunhosa, Isabel Santos, António Paulo
Aiming to explore alternative mechanisms of cellular uptake and cytotoxicity, we have studied a new family of copper(II) complexes (CuL(1)-CuL(4)) with bis(thiosemicarbazone) (BTSC) ligands containing pendant protonable cyclic amines (morpholine and piperidine). Herein, we report on the synthesis and characterization of these new complexes, as well as on their biological performance (cytotoxic activity, cellular uptake, protein and DNA binding), in comparison with the parental Cu(II)ATSM (ATSM=diacetyl-bis(N4-methylthiosemicarbazonate) complex without pendant cyclic amines...
November 23, 2016: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/27906396/gadolinium-oxysulfide-coated-gold-nanorods-with-improved-stability-and-dual-modal-magnetic-resonance-photoacoustic-imaging-contrast-enhancement-for-cancer-theranostics
#17
Tao Guo, Yan Lin, Zhi Li, Shan Chen, Guoming Huang, Huirong Lin, Jun Wang, Gang Liu, Huang-Hao Yang
Gold nanorods (GNRs) are emerging as a promising nanoplatform for cancer theranostics because of their unique optical properties. However, they still suffer from many limitations, such as high cytotoxicity, low thermodynamic and biological stability, and a tedious process for integrating other imaging modalities, for further practical biomedical applications. In this work, a strategy by one-step coating of Gd2O2S around GNRs is reported to address these limitations of GNRs. After the coating of the Gd2O2S shell, the as-fabricated Gd2O2S coated GNRs (GNRs@Gd2O2S) show enhanced biocompatibility and photostability, and tunable localized surface plasmon resonance...
December 1, 2016: Nanoscale
https://www.readbyqxmd.com/read/27902473/rituximab-conjugated-doxorubicin-loaded-microbubbles-as-a-theranostic-modality-in-b-cell-lymphoma
#18
Shoubing Zhou, Xiu Zhang, Cailian Wang
This study evaluated rituximab-conjugated, doxorubicin-loaded microbubbles (RDMs) in combination with ultrasound as molecular imaging agents for early diagnosis of B cell lymphomas, and as a targeted drug delivery system. Rituximab, a monoclonal CD20 antibody, was attached to the surfaces of doxorubicin-loaded microbubbles. RDM binding to B cell lymphoma cells was assessed using immunofluorescence. The cytotoxic effects of RDMs in combination with ultrasound (RDMs+US) were evaluated in vitro in CD20+ and CD20- cell lines, and its antitumor activities were assessed in Raji (CD20+) and Jurkat (CD20-) lymphoma cell-grafted mice...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27901317/dendrimer-stabilized-gold-nanostars-as-a-multifunctional-theranostic-nanoplatform-for-ct-imaging-photothermal-therapy-and-gene-silencing-of-tumors
#19
Ping Wei, Jingwen Chen, Yong Hu, Xin Li, Han Wang, Mingwu Shen, Xiangyang Shi
Development of versatile nanomaterials combining diagnostic and therapeutic functionalities within one single nanoplatform is extremely important for tumor theranostics. In this work, the authors report the synthesis of a gold nanostar (Au NS)-based theranostic platform stabilized with cyclic arginine-glycine-aspartic (Arg-Gly-Asp, RGD) peptide-modified amine-terminated generation 3 poly(amidoamine) dendrimers. The formed RGD-modified dendrimer-stabilized Au NSs (RGD-Au DSNSs) are used as a gene delivery vector to complex small interfering RNA (siRNA) for computed tomography (CT) imaging, thermal imaging, photothermal therapy (PTT), and gene therapy of tumors...
November 30, 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27890732/programmed-near-infrared-light-responsive-drug-delivery-system-for-combined-magnetic-tumor-targeting-magnetic-resonance-imaging-and-chemo-phototherapy
#20
Qianhua Feng, Yuanyuan Zhang, Wanxia Zhang, Yongwei Hao, Yongchao Wang, Hongling Zhang, Lin Hou, Zhenzhong Zhang
: In this study, an intelligent drug delivery system was developed by capping doxorubicin (DOX)-loaded hollow mesoporous CuS nanoparticles (HMCuS NPs) with superparamagnetic iron oxide nanoparticles (IONPs). Under near infrared (NIR) light irradiation, the versatile HMCuS NPs could exploit the merits of both photothermal therapy (PTT) and photodynamic therapy (PDT) simultaneously. Herein, the multifunctional IONPs as gatekeeper with the enhanced capping efficiency were supposed to realize "zero premature release" and minimize the adverse side effects during the drug delivery in vivo...
November 24, 2016: Acta Biomaterialia
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