Advances in Targeted Photodynamic Therapy Based on Nanotechnology

A special issue of Pharmaceutics (ISSN 1999-4923). This special issue belongs to the section "Nanomedicine and Nanotechnology".

Deadline for manuscript submissions: 20 August 2024 | Viewed by 751

Special Issue Editors


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Guest Editor
Center for Light-Based Research and Technologies Coherence, Department of Atomic Physics, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
Interests: photodynamic therapy; controlled drug release; nanobiophotonics; light-matter interaction; nonlinear optics

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Guest Editor
Center for Light-Based Research and Technologies Coherence, Department of Atomic Physics, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
Interests: photodynamic therapy; anticancer metallodrugs; nanocarriers; targeted drug delivery; biomolecular drug targets

Special Issue Information

Dear Colleagues,

Photodynamic therapy (PDT) is a noncumulative, noninvasive, and selective therapeutic modality exploited in treating various types of cancer, infections, inflammation, or wound healing. PDT relays on either focal or systemic application of photosensitizers (PSs) accumulated in pathological tissues and illumination in the form of X-rays, ultraviolet, visible, or infrared light. PS molecules absorb the irradiation of the appropriate wavelength, initiating a series of reactions leading to the selective destruction of the pathological cells by reactive oxygen species-mediated killing, blood vessel damage, and activation of the immune response. However, broad clinical applications of PDT are still hindered due to low cell/tissue selectivity and meager water solubility of PSs, limited light penetration depth, effortless recognition by the immune system, swift clearance from blood circulation, and other factors.

The seemingly unstoppable development of nanotechnology led to unparalleled, innovative, nanoparticle-based solutions that profoundly improve targeting and camouflage capability, solubility, biocompatibility, penetrability, light conversion efficiency, and PS circulation time. Original research articles, brief reports, and communications offering novel ideas and nano tricks on bypassing biological barriers, reducing dosage and side effects, improving real-time monitoring of drug release and distribution, and maximizing PDT efficiency are welcomed. In addition, opinions and reviews dealing with nanotechnology-driven progress in targeted PDT are also eligible for submission to this Special Issue which hopefully will contribute to global efforts towards the inauguration of fully personalized therapies.

We look forward to receiving your exciting and inspiring contributions.

Dr. Milutin Stepić
Dr. Maja D. Nešić
Guest Editors

Manuscript Submission Information

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Keywords

  • photodynamic therapy
  • targeted delivery
  • nanoparticles
  • controlled release
  • nanotheranostics
  • photosensitizers
  • PDT light sources

Published Papers (1 paper)

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Research

20 pages, 7283 KiB  
Article
Synergistic Enhancement of Targeted Wound Healing by Near-Infrared Photodynamic Therapy and Silver Metal–Organic Frameworks Combined with S- or N-Doped Carbon Dots
by Maja D. Nešić, Iva A. Popović, Jelena Žakula, Lela Korićanac, Jelena Filipović Tričković, Ana Valenta Šobot, Maria Victoria Jiménez, Manuel Algarra, Tanja Dučić and Milutin Stepić
Pharmaceutics 2024, 16(5), 671; https://doi.org/10.3390/pharmaceutics16050671 - 16 May 2024
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Abstract
The literature data emphasize that nanoparticles might improve the beneficial effects of near-infrared light (NIR) on wound healing. This study investigates the mechanisms of the synergistic wound healing potential of NIR light and silver metal–organic frameworks combined with nitrogen- and sulfur-doped carbon dots [...] Read more.
The literature data emphasize that nanoparticles might improve the beneficial effects of near-infrared light (NIR) on wound healing. This study investigates the mechanisms of the synergistic wound healing potential of NIR light and silver metal–organic frameworks combined with nitrogen- and sulfur-doped carbon dots (AgMOFsN-CDs and AgMOFsS-CDs, respectively), which was conducted by testing the fibroblasts viability, scratch assays, biochemical analysis, and synchrotron-based Fourier transform infrared (SR-FTIR) cell spectroscopy and imaging. Our findings reveal that the combined treatment of AgMOFsN-CDs and NIR light significantly increases cell viability to nearly 150% and promotes cell proliferation, with reduced interleukin-1 levels, suggesting an anti-inflammatory response. SR-FTIR spectroscopy shows this combined treatment results in unique protein alterations, including increased α-helix structures and reduced cross-β. Additionally, protein synthesis was enhanced upon the combined treatment. The likely mechanism behind the observed changes is the charge-specific interaction of N-CDs from the AgMOFsN-CDs with proteins, enhanced by NIR light due to the nanocomposite’s optical characteristics. Remarkably, the complete wound closure in the in vitro scratch assay was achieved exclusively with the combined NIR and AgMOFsN-CDs treatment, demonstrating the promising application of combined AgMOFsN-CDs with NIR light photodynamic therapy in regenerative nanomedicine and tissue engineering. Full article
(This article belongs to the Special Issue Advances in Targeted Photodynamic Therapy Based on Nanotechnology)
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