Hypericin Delivery System Based on P84 Copolymeric Micelles Linked with N-(3-Aminopropyl)-2-pyrrolidone for Melanoma-Targeted Photodynamic Therapy

2020 ◽  
Vol 2 (4) ◽  
pp. 1692-1701 ◽  
Author(s):  
R. S. Gonçalves ◽  
G. Braga ◽  
A. C. V. de Oliveira ◽  
G. B. César ◽  
T. T. Tominaga ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Delivery System ◽  
Targeted Photodynamic Therapy

scholarly journals A Hypericin Delivery System Based on Polydopamine Coated Cerium Oxide Nanorods for Targeted Photodynamic Therapy

Polymers ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 1025 ◽  
Author(s):  
Yang Wang ◽  
Yu Zhang ◽  
Ming Jin ◽  
Yinghua Lv ◽  
Zhichao Pei ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Cerium Oxide ◽  
Delivery System ◽  
Targeted Delivery ◽  
Oxide Nanorods ◽  
Alkaline Conditions ◽  
Targeting Ability ◽  
Human Hepatoma Hepg2 Cells ◽  
Will Self ◽  
Targeted Photodynamic Therapy

Photodynamic therapy (PDT) as a non-aggressive therapy with fewer side effects has unique advantages over traditional treatments. However, PDT still has certain limitations in clinical applications, mainly because most photosensitizers utilized in PDT are hydrophobic compounds, which will self-aggregate in the aqueous phase and cause undesirable effects. In order to resolve this, we utilized the self-polymerization of dopamine molecules under alkaline conditions to coat cerium oxide nanorods (CeONR) with a dense polydopamine (PDA) film. Thereafter, thiolated galactose (Gal-SH) and hypericin (Hyp) were modified and loaded onto the surface to construct CeONR@PDA-Gal/Hyp, respectively, which can be used for targeted photodynamic therapy of human hepatoma HepG2 cells. CeONR@PDA-Gal/Hyp was characterized by transmission electron microscope (TEM), Zeta potential, Ultraviolet-visible (UV-Vis), and fluorescence spectroscopy, respectively. This hypericin delivery system possesses good biocompatibility and specific targeting ability, where the galactose units on the surface of CeONR@PDA-Gal/Hyp can specifically recognize the asialo-glycoprotein receptors (ASGP-R), which overexpress on HepG2 cell membrane. Furthermore, Hyp will detach from the surface of CeONR@PDA-Gal/Hyp after the nanorods enter cancer cells, and shows excellent PDT effect under the irradiation of light with a wavelength of 590 nm. Our work exemplifies a novel targeted delivery of hydrophobic photosensitizers for cancer treatment.

Scavenger-Receptor Targeted Photodynamic Therapy¶

2000 ◽  
Vol 72 (4) ◽  
pp. 533 ◽  
Author(s):  
Michael R. Hamblin ◽  
Jaimie L. Miller ◽  
Bernhard Ortel
Keyword(s):  
Photodynamic Therapy ◽  
Scavenger Receptor ◽  
Targeted Photodynamic Therapy

scholarly journals Nanoscale Metal–Organic Layer Isolates Phthalocyanines for Efficient Mitochondria-Targeted Photodynamic Therapy

2021 ◽  
Vol 143 (5) ◽  
pp. 2194-2199 ◽  
Author(s):  
Geoffrey T. Nash ◽  
Taokun Luo ◽  
Guangxu Lan ◽  
Kaiyuan Ni ◽  
Michael Kaufmann ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Organic Layer ◽  
Metal Organic ◽  
Targeted Photodynamic Therapy

scholarly journals X-ray induced photodynamic therapy (PDT) with a mitochondria-targeted liposome delivery system

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Xuefan Gu ◽  
Chao Shen ◽  
Hua Li ◽  
Ewa M. Goldys ◽  
Wei Deng
Keyword(s):  
Photodynamic Therapy ◽  
Delivery System ◽  
X Ray

Researches on Preparation of Photosan Loaded Magnetic Silica Anoparticles and their Anti-Tumor Effects in Photodynamic Therapy

2012 ◽  
Vol 622-623 ◽  
pp. 821-826
Author(s):  
Yu Wen ◽  
Xiao Feng Deng ◽  
Liang Liang Liu ◽  
Shu Yun Shi ◽  
Li Xiong
Keyword(s):  
Drug Delivery ◽  
Photodynamic Therapy ◽  
Drug Delivery System ◽  
Delivery System ◽  
Sol Gel ◽  
Haematoporphyrin Derivative ◽  
X Ray Diffraction ◽  
Transmission Electron ◽  
Good Biocompatibility ◽  
Low Solubility

Photodynamic therapy (PDT) is an effective, noninvasive and nontoxic therapeutics for cancer and some other diseases. It is becoming a alternative of traditional therapeutics for cancers. But the efficacy of PDT was restricted by insufficient selectivity and low solubility. In this study, novel multifunctional silica-based magnetic nanoparticles were prepared as targeting drug delivery system to achieve higher specificity and better solubility. Haematoporphyrin derivative (photosan) was used as photosensitizer. Magnetite nanoparticles (Fe3O4) and photosan were incorporated in silica nanoparticles by microemulsion and sol-gel methods. The prepared nanoparticles were characterized by X-ray diffraction, and transmission electron microscopy. The nanoparticles possessed good biocompatibility and could cause remarkable photodynamic anti-tumor effects. These suggested that photosan-Fe3O4 nanoparticles had great potential as effective drug delivery system in targeting photodynamic therapy.

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