Special Issue "Radiolabeled Nanoparticles for Diagnosis and Therapy"

A special issue of Pharmaceuticals (ISSN 1424-8247). This special issue belongs to the section "Radiopharmaceutical Sciences".

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 3098

Special Issue Editor

Department of Biology, Signals and Systems in Cancer and Neuroscience, UMR 7039 Research Center for Automatic Control (CRAN), Université de Lorraine–French National Scientific Research Center (CNRS), F-54000 Nancy, France
Interests: nanomedicine; nuclear medicine; vectorized internal therapy; photodynamic therapy; Cerenkov radiations

Special Issue Information

Dear Colleagues,

Because the world’s population is continuously growing while life span increases, cancer is expected to be the main cause of death in the world in the 21st century. Therefore, the development of diagnostic and therapeutic strategies for the management of cancer is of high importance.

The use of nanoparticles in cancer diagnosis and therapy has continuously increased for the last decade. Most applications of such systems were dedicated to radiosensitization purposes in the external radiotherapy context. However, external radiotherapy can induce unwanted damages to healthy tissues. Moreover, extracellular matrix degradation through ionizations is responsible for tumoral cells’ migration. In this context, internal radiotherapy appears as a promising strategy. Conjoint use of nanoparticles and radioelements can then be used for both diagnosis and therapy, depending on the type of emission allowed by the chosen isotope.

The range of applications and methods allowed by such association is wide, from positron emission tomography (PET) imaging, with very specific radiotracers, to deep-seated photodynamic therapy and, of course, brachytherapy. The next step toward a true personalized medicine strategy will be the use of the same nanoplatform to label two different isotopes: the first for diagnosis and prognosis and the second for the therapy. In this way, we can predict if the treatment will reach the tumor site specifically and then predict its efficacy before initiating it.

In this Special Issue, we welcome submissions of high-quality research and review articles presenting investigations of involving nanoparticles and nuclear medicine for both diagnosis and therapy. We welcome all types of reports, including in silico, in vitro, and in vivo studies, but also more interdisciplinary papers presenting physical and numerical models as well as the dosimetry of investigated methods.

Dr. Joël Daouk
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Pharmaceuticals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • vectorized internal radiotherapy
  • brachytherapy
  • functional imaging
  • Cerenkov imaging
  • photodynamic therapy

Published Papers (2 papers)

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Research

Article
In Vitro Hemocompatibility and Genotoxicity Evaluation of Dual-Labeled [99mTc]Tc-FITC-Silk Fibroin Nanoparticles for Biomedical Applications
Pharmaceuticals 2023, 16(2), 248; https://doi.org/10.3390/ph16020248 - 07 Feb 2023
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Abstract
Nuclear imaging is a highly sensitive and noninvasive imaging technique that has become essential for medical diagnosis. The use of radiolabeled nanomaterials capable of acting as imaging probes has shown rapid development in recent years as a powerful, highly sensitive, and noninvasive tool. [...] Read more.
Nuclear imaging is a highly sensitive and noninvasive imaging technique that has become essential for medical diagnosis. The use of radiolabeled nanomaterials capable of acting as imaging probes has shown rapid development in recent years as a powerful, highly sensitive, and noninvasive tool. In addition, quantitative single-photon emission computed tomography (SPECT) images performed by incorporating radioisotopes into nanoparticles (NPs) might improve the evaluation and the validation of potential clinical treatments. In this work, we present a direct method for [99mTc]Tc-radiolabeling of FITC-tagged silk fibroin nanoparticles (SFN). NPs were characterized by means of dynamic light scattering and scanning electron microscopy. In vitro studies were carried out, including the evaluation of stability in biological media and the evaluation of hemocompatibility and genotoxicity using the cytokinesis block micronucleus (CBMN) assay. The radiolabeling method was reproducible and robust with high radiolabeling efficiency (∼95%) and high stability in biological media. Hydrodynamic properties of the radiolabeled NPs remain stable after dual labeling. The interaction of SFN with blood elicits a mild host response, as expected. Furthermore, CBMN assay did not show genotoxicity induced by [99mTc]Tc-FITC-SFN under the described conditions. In conclusion, a feasible and robust dual-labeling method has been developed whose applicability has been demonstrated in vitro, showing its value for further investigations of silk fibroin NPs biodistribution in vivo. Full article
(This article belongs to the Special Issue Radiolabeled Nanoparticles for Diagnosis and Therapy)
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Article
Added Value of Scintillating Element in Cerenkov-Induced Photodynamic Therapy
Pharmaceuticals 2023, 16(2), 143; https://doi.org/10.3390/ph16020143 - 18 Jan 2023
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Abstract
Cerenkov-induced photodynamic therapy (CR-PDT) with the use of Gallium-68 (68Ga) as an unsealed radioactive source has been proposed as an alternative strategy to X-ray-induced photodynamic therapy (X-PDT). This new strategy still aims to produce a photodynamic effect with the use of [...] Read more.
Cerenkov-induced photodynamic therapy (CR-PDT) with the use of Gallium-68 (68Ga) as an unsealed radioactive source has been proposed as an alternative strategy to X-ray-induced photodynamic therapy (X-PDT). This new strategy still aims to produce a photodynamic effect with the use of nanoparticles, namely, AGuIX. Recently, we replaced Gd from the AGuIX@ platform with Terbium (Tb) as a nanoscintillator and added 5-(4-carboxyphenyl succinimide ester)-10,15,20-triphenylporphyrin (P1) as a photosensitizer (referred to as AGuIX@Tb-P1). Although Cerenkov luminescence from 68Ga positrons is involved in nanoscintillator and photosensitizer activation, the cytotoxic effect obtained by PDT remains controversial. Herein, we tested whether free 68Ga could substitute X-rays of X-PDT to obtain a cytotoxic phototherapeutic effect. Results were compared with those obtained with AGuIX@Gd-P1 nanoparticles. We showed, by Monte Carlo simulations, the contribution of Tb scintillation in P1 activation by an energy transfer between Tb and P1 after Cerenkov radiation, compared to the Gd-based nanoparticles. We confirmed the involvement of the type II PDT reaction during 68Ga-mediated Cerenkov luminescence, id est, the transfer of photon to AGuIX@Tb-P1 which, in turn, generated P1-mediated singlet oxygen. The effect of 68Ga on cell survival was studied by clonogenic assays using human glioblastoma U-251 MG cells. Exposure of pre-treated cells with AGuIX@Tb-P1 to 68Ga resulted in the decrease in cell clone formation, unlike AGuIX@Gd-P1. We conclude that CR-PDT could be an alternative of X-PDT. Full article
(This article belongs to the Special Issue Radiolabeled Nanoparticles for Diagnosis and Therapy)
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