Publications by authors named "Radovic Magdalena"

Article Synopsis
  • Researchers explored nanobrachytherapy, an alternative to traditional brachytherapy, using intratumoral injections of radionuclide-labeled superparamagnetic iron oxide nanoparticles (SPIONs) to treat solid tumors more effectively than intravenous methods.
  • The nanoparticles were coated with meso-1,2-dimercaptosuccinic acid (DMSA) and radiolabeled with Lutetium-177 (Lu), showing stable bonding and minimal leakage post-injection in mouse tumor models.
  • Testing demonstrated that a low dose of Lu-DMSA@SPIONs led to high therapeutic efficacy localized around the injection site, indicating they can be safe and effective for targeted tumor treatment without requiring higher or repeated doses.
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Radiolabelled superparamagnetic iron oxide nanoparticles (SPIONs) are a promising nanomaterial for the development of dual radiation/hyperthermia cancer therapy. To that purpose, flower-shaped SPIONs with an exceptional heating capability were synthesised and coated with citrate, dextran or (3-aminopropyl)triethoxysilane. Both non-coated and coated SPIONs were nontoxic to CT-26 mouse colon cancer cells up to 1.

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  • Recent studies suggest that doxycycline, when combined with traditional chemotherapy, may enhance cancer treatment outcomes.
  • The current research successfully radiolabeled doxycycline with a beta-emitting isotope, Lu, and analyzed its interactions with DNA, demonstrating that the complex is stable and retains its binding capabilities.
  • Biodistribution tests in tumor-bearing mice showed promising accumulation of Lu-doxycycline in tumors, indicating its potential as an effective anticancer agent based on its favorable binding properties and biological characteristics.
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Liposomes are promising drug's delivery systems due to decreased toxicity of the liposome-encapsulated drug, but wider clinical application requires their more efficient tumor targeting with uptake, controlled drug release and higher shelf life. The unique metabolic characteristics of cancer cells based on higher demand for energy and therefore increased glucose utilization were exploited in the design of glucose modified liposomes (GML) with the aim to provide increased tumor targeting via glucose transporters and increased ability of drug delivery into tumor cells. Tumor accumulating potential of GML and non-glucose liposomes (NGL) were investigated on CT26 and LS174T tumor-bearing mice by simple and reliable radiotracer method using Lu as radioactive marker.

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Combined radionuclide therapy with magnetic nanoparticles-mediated hyperthermia has been under research focus as a promising tumor therapy approach. The objective of this study was to investigate the potential of I-radiolabeled superparamagnetic iron oxide nanoparticles (SPIONs) prepared as the ~40 nm flower-shaped structures with excellent heating efficiency (specific absorption rate at H = 15.9 kA∙m and resonant frequency of 252 kHz was 123.

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Article Synopsis
  • Y-labelled albumin microspheres (AMS) were created by optimizing their preparation process to enhance stability.
  • Three formulations were tested, showing that the timing of adding the Y radionuclide and DTPA chelator affected the stability of the microspheres.
  • DTPA effectively binds the Y radionuclide to albumin, and the AMS that were labelled before stabilization demonstrated strong stability for potential use in selective internal radiation therapy.
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Development of a complex based on iron oxide nanoparticles (IONPs) for diagnosis and dual magnetic hyperthermia/radionuclide cancer therapy accomplishing high yields of radiolabeling and great magnetic heat induction is still a challenge. We report here the synthesis of citric acid, poly(acrylic acid) (PAA) and poly(ethylene glycol) coated IONPs and their labeling with three radionuclides, namely, technetium (Tc), yttrium (Y), and lutetium (Lu), aiming at potential use in cancer diagnosis and therapy. Polyol-synthesized IONPs are a flowerlike structure with 13.

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Novel theranostic nanoplatform is expected to integrate imaging for guiding and monitoring of the tumor therapy with great therapeutic efficacy and fewer side effects. Here we describe the preparation of a multifunctional Tc-bisphosphonate-coated magnetic nanoparticles (MNPs) based on FeO and coated with two hydrophilic bisphosphonate ligands, i.e.

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The aim of this study was to develop a dual-modality PET/MR imaging probe by radiolabeling iron oxide magnetic nanoparticles (IONPs), surface functionalized with water soluble stabilizer 2,3-dicarboxypropane-1,1-diphosphonic acid (DPD), with the positron emitter Gallium-68. Magnetite nanoparticles (FeO MNPs) were synthesized via coprecipitation method and were stabilized with DPD. The FeO-DPD MNPs were characterized based on their structure, morphology, size, surface charge, and magnetic properties.

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Radiolabeled magnetic nanoparticles (MNPs) coated with hydrophilic phosphate ligands, i.e., imidodiphosphate (IDP) and inositol hexaphosphate (IHP), were developed as multifunctional agents to localize both radioactivity and magnetic energy at a tumor site.

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Two different types of magnetic nanoparticles (MNPs) were synthesized in order to compare their efficiency as radioactive vectors, Fe₃O₄-Naked (80 ± 5 nm) and polyethylene glycol 600 diacid functionalized Fe₃O₄(Fe₃O₄-PEG600) MNPs (46 ± 0.6 nm). They were characterized based on the external morphology, size distribution, and colloidal and magnetic properties.

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