Polphylipoprotein-induced autophagy mechanism with high performance in photodynamic therapy.
Commun Biol
; 6(1): 1212, 2023 11 28.
Article
em En
| MEDLINE
| ID: mdl-38017279
ABSTRACT
Polphylipoprotein (PLP) is a recently developed nanoparticle with high biocompatibility and tumor selectivity, and which has demonstrated unprecedentedly high performance photosensitizer in photodynamic therapy (PDT) and photodynamic diagnosis. On the basis of these discoveries, PLP is anticipated to have a very high potential for PDT. However, the mechanism by which PLP kills cancer cells effectively has not been sufficiently clarified. To comprehensively understand the PLP-induced PDT processes, we conduct multifaceted experiments using both normal cells and cancer cells originating from the same sources, namely, RGM1, a rat gastric epithelial cell line, and RGK1, a rat gastric mucosa-derived cancer-like mutant. We reveal that PLP enables highly effective cancer treatment through PDT by employing a unique mechanism that utilizes the process of autophagy. The dynamics of PLP-accumulated phagosomes immediately after light irradiation are found to be completely different between normal cells and cancer cells, and it becomes clear that this difference results in the manifestation of the characteristic effect of PDT when using PLP. Since PLP is originally developed as a drug delivery agent, this study also suggests the potential for intracellular drug delivery processes through PLP-induced autophagy.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Fotoquimioterapia
/
Nanopartículas
Limite:
Animals
Idioma:
En
Revista:
Commun Biol
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Japão