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https://www.readbyqxmd.com/read/29341227/pet-radiometals-for-antibody-labeling
#1
Eduardo Aluicio-Sarduy, Paul A Ellison, Todd E Barnhart, Weibo Cai, Robert Jerry Nickles, Jonathan W Engle
Recent advances in molecular characterization of tumors have made possible the emergence of new types of cancer therapies where the traditional cytotoxic drugs and nonspecific chemotherapy can be complemented with targeted molecular therapies. One of the main revolutionary treatments is the use of monoclonal antibodies (mAbs) that selectively target the disseminated tumor cells while sparing normal tissues. mAbs and related therapeutics can be efficiently radiolabeled with a wide range of radionuclides to facilitate preclinical and clinical studies...
January 17, 2018: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/29341024/advanced-contrast-agents-for-multimodal-biomedical-imaging-based-on-nanotechnology
#2
Daniel Calle, Paloma Ballesteros, Sebastián Cerdán
Clinical imaging modalities have reached a prominent role in medical diagnosis and patient management in the last decades. Different image methodologies as Positron Emission Tomography, Single Photon Emission Tomography, X-Rays, or Magnetic Resonance Imaging are in continuous evolution to satisfy the increasing demands of current medical diagnosis. Progress in these methodologies has been favored by the parallel development of increasingly more powerful contrast agents. These are molecules that enhance the intrinsic contrast of the images in the tissues where they accumulate, revealing noninvasively the presence of characteristic molecular targets or differential physiopathological microenvironments...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29341020/mri-in-the-study-of-animal-models-of-stroke
#3
Pedro Ramos-Cabrer, Daniel Padro
Stroke consists of the loss of cerebral functions resulting from the interruption of blood supply to a region of the brain, and represents the second cause of death and the leading cause of major disability in adults in Europe. Stroke is a very active field of research at preclinical and clinical levels, and Magnetic Resonance Imaging (MRI) is one of the most powerful tools that scientist and clinicians have for the study of the onset, evolution and consequences of this devastating disease, as well as for the monitoring of the success of available treatments, or for the development of novel therapeutic strategies...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29338452/an-update-on-diagnostic-and-prognostic-biomarkers-for-traumatic-brain-injury
#4
Kevin K Wang, Zhihui Yang, Tian Zhu, Yuan Shi, Richard Rubenstein, J Adrian Tyndall, Geoff T Manley
Traumatic brain injury (TBI) is a major worldwide neurological disorder of epidemic proportions. To date, there are still no FDA-approved therapies to treat any forms of TBI. Encouragingly, there are emerging data showing that biofluid-based TBI biomarker tests have the potential to diagnose the presence of TBI of different severities including concussion, and to predict outcome. Area covered: The authors provide an update on the current knowledge of TBI biomarkers, including protein biomarkers for neuronal cell body injury (UCH-L1, NSE), astroglial injury (GFAP, S100B), neuronal cell death (αII-spectrin breakdown products), axonal injury (NF proteins), white matter injury (MBP), post-injury neurodegeneration (total Tau and phospho-Tau), post-injury autoimmune response (brain antigen-targeting autoantibodies), and other emerging non-protein biomarkers...
January 17, 2018: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/29338211/highly-stable-rna-capture-by-dense-cationic-polymer-brushes-for-the-design-of-cytocompatible-serum-stable-sirna-delivery-vectors
#5
Danyang Li, Amir S Sharili, John Connelly, Julien E Gautrot
The high density of polymer brushes confers to these coatings unique physico-chemical properties, in particular for the regulation of biomolecular interaction and the design of highly selective coatings for biosensors and protein patterning. Here we show that high density poly(dimethylaminoethyl methacrylate) cationic polymer brushes enable the stable uptake of high levels of oligonucleotides. This is proposed to result from the high degree of crowding and associated increase in entropic driving force for the binding of polyelectrolytes such as nucleic acid molecules...
January 16, 2018: Biomacromolecules
https://www.readbyqxmd.com/read/29334220/computational-design-synthesis-and-structure-property-evaluation-of-1-3-thiazole-based-colour-tunable-multiheterocyclic-small-organic-fluorophores-as-multifunctional-molecular-materials
#6
Rakesh Radhakrishnan, Kumaran G Sreejalekshmi
Probing chemical space of luminescent organic materials built on novel cores is highly imperative for its potential to expand the horizons of advanced functional materials. Small organic fluorophores possessing therapeutic traits can contribute to theranostics. We coupled computational and classical synthetic chemistry strategies for the rational design of 5-(hetero-2-yl)-1,3-thiazoles as colour tunable fluorophore core. With the aid of DFT and TD-DFT, we prove multiheterocyclic system built on thiazole-het core with three inherent tunable sites on thiazole (C2, C4 and C5) capable of accommodating panoply of substituents, as a multifunctional molecular materials' platform...
January 15, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29334186/natural-humic-acid-based-phototheranostic-agent
#7
Zhao-Hua Miao, Kai Li, Pei-Ying Liu, Zhenglin Li, Huanjie Yang, Qingliang Zhao, Manli Chang, Qingzhu Yang, Liang Zhen, Cheng-Yan Xu
Humic acids, a major constituent of natural organic carbon resources, are naturally formed through the microbial biodegradation of animal and plant residues. Due to numerous physiologically active groups (phenol, carboxyl, and quinone), the biomedical applications of humic acid have been already investigated across different cultures for several centuries or even longer. In this work, sodium humate, the sodium salt of humic acid, is explored as phototheranostic agent for light-induced photoacoustic imaging and photothermal therapy based on intrinsic absorption in the near-infrared region...
January 15, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29334153/heterobimetallic-complexes-for-theranostic-applications
#8
M Concepción Gimeno, Vanesa Fernández-Moreira
The design of more efficient anticancer drugs requires a deeper understanding of their biodistribution and mechanism of action. Cell imaging agents could help to gain insight into biological processes and, consequently, the best strategy for attaining suitable scaffolds in which both, biological and imaging properties are maximized. A new concept arises in this field which is the combination of two metal fragments as collaborative partners to provide the precise emissive properties to visualize the cell as well as the optimum cytotoxic activity to build more potent and selective chemotherapeutic agents...
January 15, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29334095/gd3-doped-mose2-nanosheets-used-as-a-theranostic-agent-for-bimodal-imaging-and-highly-efficient-photothermal-cancer-therapy
#9
Jiali Pan, Xufeng Zhu, Xu Chen, Yingyu Zhao, Jie Liu
Recently, two dimensional transition metal dichalcogenides (TMDCs) being used as nanomedicine have aroused great interest because of their unique photothermal properties. A simple liquid-phase method was used to prepare gadolinium (Gd3+)-doped molybdenum selenide (MoSe2) nanosheets, and then using poly(ethylene glycol) (PEG) modification on the surface, MoSe2(Gd3+)-PEG nanosheets were obtained which had high stability in physiological solutions and showed no obvious toxicity in vivo. It revealed that Gd3+ used as a paramagnetic material for MoSe2(Gd3+)-PEG provided a strong contrast effect in magnetic resonance imaging, furthermore, the MoSe2 showed strong absorption in the near infrared region, and therefore, MoSe2(Gd3+)-PEG could be used as contrast agent for photoacoustic imaging (PAI)...
January 15, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29333658/in-situ-shrna-synthesis-on-dna-polylactide-nanoparticles-to-treat-multidrug-resistant-breast-cancer
#10
Qianqian Ni, Fuwu Zhang, Yunlei Zhang, Guizhi Zhu, Zhe Wang, Zhaogang Teng, Chunyan Wang, Bryant C Yung, Gang Niu, Guangming Lu, Longjiang Zhang, Xiaoyuan Chen
Nanomedicine has shown unprecedented potential for cancer theranostics. Nucleic acid (e.g., DNA and RNA) nanomedicines are of particular interest for combination therapy with chemotherapeutics. However, current nanotechnologies to construct such nucleic acid nanomedicines, which rely on chemical conjugation or physical complexation of nucleic acids with chemotherapeutics, have restrained their clinical translation due to limitations such as low drug loading efficiency and poor biostability. Herein, in situ rolling circle transcription (RCT) is applied to synthesize short hairpin RNA (shRNA) on amphiphilic DNA-polylactide (PLA) micelles...
January 15, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29332929/size-based-differentiation-of-cancer-and-normal-cells-by-a-particle-size-analyzer-assisted-by-a-cell-recognition-pc-software
#11
Babita Shashni, Shinya Ariyasu, Reisa Takeda, Toshihiro Suzuki, Shota Shiina, Kazunori Akimoto, Takuto Maeda, Naoyuki Aikawa, Ryo Abe, Tomohiro Osaki, Norihiko Itoh, Shin Aoki
Detection of anomalous cells such as cancer cells from normal blood cells has the potential to contribute greatly to cancer diagnosis and therapy. Conventional methods for the detection of cancer cells are usually tedious and cumbersome. Herein, we report on the use of a particle size analyzer for the convenient size-based differentiation of cancer cells from normal cells. Measurements made using a particle size analyzer revealed that size parameters for cancer cells are significantly greater (e.g., inner diameter and width) than the corresponding values for normal cells (white blood cells (WBC), lymphocytes and splenocytes), with no significant difference in shape parameters (e...
January 13, 2018: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29332928/optical-coherence-tomography-for-precision-brain-imaging-neurosurgical-guidance-and-minimally-invasive-theranostics
#12
Yingwei Fan, Yan Xia, Xinran Zhang, Yu Sun, Jie Tang, Liwei Zhang, Hongen Liao
This review focuses on optical coherence tomography (OCT)-based neurosurgical application for imaging and treatment of brain tumors. OCT has emerged as one of the most innovative and successful translational biomedical-diagnostic techniques. It is a useful imaging tool for noninvasive, in vivo, in situ and real-time imaging in soft biological tissues, such as brain tumor imaging. OCT can detect the structure of biological tissue in a micrometer scale, and functional OCT has some clinical researches and applications, such as nerve fiber tracts and neurovascular imaging...
January 15, 2018: Bioscience Trends
https://www.readbyqxmd.com/read/29328497/identification-of-theranostic-biomarkers-to-improve-the-stratification-of-patients-with-pediatric-liver-cancer-opportunities-and-challenges
#13
EDITORIAL
Carolina Armengol, Stefano Cairo
No abstract text is available yet for this article.
January 12, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29326994/single-coating-of-zinc-ferrite-renders-magnetic-nanomotors-therapeutic-and-stable-against-agglomeration
#14
Pooyath Lekshmy Venugopalan, Shilpee Jain, Srinivasrao Shivashankar, Ambarish Ghosh
Magnetic nanomotors with integrated theranostic capabilities can revolutionize biomedicine of the future. Typically, these nanomotors contain ferromagnetic materials, such that small magnetic fields can be used to maneuver and localize them in fluidic or gel-like environments. Motors with large permanent magnetic moments tend to agglomerate, which limits the scalability of this otherwise promising technology. Here, we demonstrate the application of a microwave-synthesized ferrite layer to reduce the agglomeration of helical ferromagnetic nanomotors by an order of magnitude, which allows them to be stored in a colloidal suspension for longer than six months and subsequently be manoeuvred with undiminished performance...
January 12, 2018: Nanoscale
https://www.readbyqxmd.com/read/29325469/current-update-of-a-thermosensitive-liposomes-composed-of-dppc-and-brij78
#15
Laurence Ho, Mehrdad Bokharaei, Shyh-Dar Li
Thermosensitive liposomes (TSLs) have been a prominent area of study in the discipline of tumor-targeted chemotherapeutics. The representative product of TSLs is ThermoDox® (DPPC/lyso-PC/PEG-lipid), which has advanced to Phase III clinical trials. Various groups have sought to develop a new TSL to improve upon the LTSL (lyso-lipid temperature sensitive liposomes) formulation that is used to prepare ThermoDOX®. This review focuses on the development and recent update of an innovative TSL formulation, HaT-liposomes composed of DPPC and Brij78...
January 11, 2018: Journal of Drug Targeting
https://www.readbyqxmd.com/read/29325210/a-new-co-p-nanocomposite-with-ultrahigh-relaxivity-for-in-vivo-magnetic-resonance-imaging-guided-tumor-eradication-by-chemo-photothermal-synergistic-therapy
#16
Jianhua Liu, Longhai Jin, Yinghui Wang, Xing Ding, Songtao Zhang, Shuyan Song, Daguang Wang, Hongjie Zhang
Design of new nanoagents that intrinsically have both diagnostic imaging and therapeutic capabilities is highly desirable for personalized medicine. In this work, a novel nanotheranostic agent is fabricated based on polydopamine (PDA)-functionalized Co-P nanocomposites (Co-P@PDA) for magnetic resonance imaging (MRI)-guided combined photothermal therapy and chemotherapy. The ultrahigh relaxivity of 224.61 mm-1 s-1 can enable Co-P@PDA to be applied as an excellent contrast agent for MRI in vitro and in vivo, providing essential and comprehensive information for tumor clinical diagnosis...
January 11, 2018: Small
https://www.readbyqxmd.com/read/29324341/biotin-conjugated-organic-molecules-and-proteins-for-cancer-therapy-a-review
#17
Santanu Maiti, Priyankar Paira
The main transporter for biotin is sodium dependent multivitamin transporter (SMVT), which is overexpressed in various aggressive cancer cell lines such as ovarian (OV 2008, ID8), leukemia (L1210FR), mastocytoma (P815), colon (Colo-26), breast (4T1, JC, MMT06056), renal (RENCA, RD0995), and lung (M109) cancer cell lines. Furthermore, its overexpression was found higher to that of folate receptor. Therefore, biotin demand in the rapidly growing tumors is higher than normal tissues. Several biotin conjugated organic molecules has been reported here for selective delivery of the drug in cancer cell...
January 2, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29323875/theranostics-of-triple-negative-breast-cancer-based-on-conjugated-polymer-nanoparticles
#18
Guorui Jin, Rongyan He, Qian Liu, Yuqing Dong, Min Lin, Wenfang Li, Feng Xu
Triple negative breast cancer (TNBC) does not respond to many targeted drugs due to the lack of three receptors (i.e., estrogen receptor, progesterone receptor and human epidermal growth factor receptor-2), which makes it difficult for TNBC detection and treatment. As compared to traditional breast cancer treatments such as surgery and chemotherapy, photodynamic therapy (PDT) has emerged as a promising approach for treating TNBC due to its precise controllability, high spatiotemporal accuracy and minimal invasive nature...
January 11, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29320951/glutathione-conjugated-polyethylenimine-on-the-surface-of-fe3o4-magnetic-nanoparticles-as-a-theranostic-agent-for-targeted-and-controlled-curcumin-delivery
#19
Navid Aeineh, Fahimeh Salehi, Mohammad Akrami, Firouzeh Nemati, Masoumeh Alipour, Milad Ghorbani, Banafsheh Nikfar, Fatemeh Salehian, Nader Riyahi Alam, Seyed Esmaeil Sadat Ebrahimi, Alireza Foroumadi, Mehdi Khoobi, Mohammadreza Rouini, Maryam Dibaei, Ismaeil Haririan, Mohammad Reza Ganjali, Saeed Safaei
Theranostics with the ability to simultaneous monitoring of treatment progress and controlled delivery of therapeutic agents has become as an emerging therapeutic paradigm in cancer therapy. In this study, we have developed a novel surface functionalized iron oxide nanoparticle using polyethyleneimine (PEI) and glutathione (GSH) for targeted curcumin (CUR) delivery and acceptable pH sensitive character. The developed magnetic nanoparticles (MNPs) were physicochemically characterized by FT-IR, XRD, FE-SEM and TEM...
January 11, 2018: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/29320614/deep-tumor-penetrating-bioparticulates-inspired-burst-intracelluar-drug-release-for-precision-chemo-phototherapy
#20
Ruoning Wang, Yue Han, Bo Sun, Ziqiang Zhao, Yaw Opoku-Damoah, Hao Cheng, Huaqing Zhang, Jianping Zhou, Yang Ding
The relevance of personalized medicine has inspired research for individually concerted diagnosis and therapy. Numerous efforts are devoted to designing drug particulates with capabilities of tumor penetrating and subcellular trafficking to concurrently discharge theranostics in response to multistimulations. In this study, a bioinspired particulate, formulated with whole components of native high-density lipoproteins (HDLs) and decorated with the tumor-penetrating peptide iRGD, is proposed to promote tumor penetration of HDLs (pHDLs) together with payloads...
January 10, 2018: Small
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