Near-Infrared Hypocrellin Derivatives for Synergistic Photodynamic and Photothermal Therapy.
Chem Asian J
; 15(21): 3462-3468, 2020 Nov 02.
Article
em En
| MEDLINE
| ID: mdl-32909355
ABSTRACT
Hypocrellin B (HB) derived from naturally produced hypocrellins has attracted considerable attention in photodynamic therapy (PDT) because of its excellent photosensitive properties. However, the weak absorption within a "phototherapy window" (600-900â
nm) and poor water solubility of HB have limited its clinical application. In this study, two HB derivatives (i. e., HE and HF) were designed and synthesized for the first time by introducing two different substituent groups into the HB structure. The obtained derivatives showed a broad absorption band covering the near-infrared (NIR) region, NIR emission (peaked at 805â
nm), and singlet oxygen quantum yields of 0.27/0.31. HE-PEG-NPs were also prepared using 2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethyleneglycol)-2000] (DSPE-mPEG2000) to achieve excellent dispersion in water and further explored their practical applications. HE-PEG-NPs not only retained their 1 O2 -generating ability, but also exhibited a photothermal conversion efficiency of 25.9%. In vitro and inâ
vivo therapeutic results revealed that the synergetic effect of HE-PEG-NPs on PDT and photothermal therapy (PTT) could achieve a good performance. Therefore, HE-PEG-NPs could be regarded as a promising phototheranostic agent.
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Base de dados:
MEDLINE
Assunto principal:
Perileno
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Quinonas
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Fármacos Fotossensibilizantes
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Fenol
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Terapia Fototérmica
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Antineoplásicos
Limite:
Animals
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article