Antitumor Effect of Light-guided Ovarian Cancer Targeted Albumin Nanoconjugates / 中国药学杂志
Chinese Pharmaceutical Journal
;
(24): 1836-1842, 2018.
Artigo
em Chinês
| WPRIM
| ID: wpr-858165
ABSTRACT
OBJECTIVE:
To prepare ovarian cancer targeted photosensitizer albumin nanoconjugates, and investigate their tumor-targeting ability and antitumor response.METHODS:
The intracellular uptake and uptake mechanism were investigated by confocal laser scanning microscope, flow cytometry and lysosome labeling. The cytotoxicity was detected by Alamar Blue and Calcein AM/PI staining. The antitumor mechanism of cRGD-PEG-HSA-IR700 was investigated by observing the generation of reactive oxygen species(ROS) and apoptosis. The tumor targeting ability of nanoconjugates was observed by constructing SKOV-3-NIH-3T3/GFP spheroids.RESULTS:
The intracellular uptake of cRGD-PEG-HSA-IR700 in integrin overexpressed SKOV-3 cells was 3.8 fold higher than that of PEG-HSA-IR700, and cRGD-PEG-HSA-IR700 mainly distributed in lysosomes after uptake, where as the uptake of PEG-HSA-IR700 and cRGD-PEG-HSA-IR700 in integrin free NIH-3T3 cells was little.No photokilling effect was observed in the IR700, PEG-HSA-IR700 and cRGD-PEG-HSA-IR700 without light irradiation groups, while remarkable cytotoxicity was shown in the cRGD-PEG-HSA-IR700 with light irradiation group owing to the light-induced intracellular ROS generation and apoptosis.CONCLUSION:
The tumor-specific nanoconjugates may become a new drug delivery platform for enabling targeted photodynamic therapy of cancer.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Pharmaceutical Journal
Ano de publicação:
2018
Tipo de documento:
Artigo
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