화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터)
권호 39권 1호
발표분야 기능성 고분자
제목 Methylene blue/fatty acid-complexed nanoparticles: A nanophotosensitizer with high efficacy in photodynamic therapy against breast cancer
초록 Methylene blue (MB) has been used as a dye for staining living tissues and a photosensitizer for photodynamic therapy (PDT). Here, we report MB-assembled nanoformulations with enhancing photosensitizing ability and stability in-vivo condition. Using the electrostatic complexation of positive charged MB/negative charged fatty acid, the coaggregated methylene blue nanoparticles (MB NPs) with the average size of~100 nm were manufactured by aqueous self-assembly of a non-ionic surfactant (Pluronic F-68). The therapeutic efficacy of MB NPs was investigated by peritumoral injection in a xenotransplanted subcutanous tumor (MDA-MB-231, breast cancer) in female nude mice. We demonstrate that the MB nanophotosensitizer can efficiently induce cell death by apoptosis during PDT.
저자 이용덕1, 방준하2, 김세훈1
소속 1한국과학기술(연), 2고려대
키워드 photodynamic therapy; methylene blue
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