RRC ID 1936
著者 Nonaka M, Ikeda H, Inokuchi T.
タイトル Inhibitory effect of heat shock protein 70 on apoptosis induced by photodynamic therapy in vitro.
ジャーナル Photochem Photobiol
Abstract We examined the apoptotic effects of photodynamic therapy (PDT) in leukemia cells (HL60) and lymphoma cells (Raji). Moreover, we also investigated the relationship of apoptosis induced by PDT to heat shock protein (HSP) expression. To induce 80% of cell death by PDT, HL60 cells required 6 microg/mL and Raji cells required 9 microg/mL of Photofrin. PDT induced apoptosis in 77.2% of HL60 and in 0.4% of Raji at lethal dose (LD80) conditions. The cell line in which apoptosis is predisposed may be more susceptible to PDT compared with the cell line in which necrosis is predisposed. Furthermore, HSP-70 was expressed constitutively in Raji cells but not in HL60 cells. Heat treatment of HL60 cells induced expression of HSP-70 and resulted in significant reduction of PDT-mediated apoptosis. From the results of this experiment, it is suggestive that HSP-70 contributes to inhibition of apoptosis mediated by PDT.
巻・号 79(1)
ページ 94-8
公開日 2004-1-1
PMID 14982037
MeSH Apoptosis / drug effects Apoptosis / physiology* Caspase Inhibitors Caspases / metabolism Cell Survival / drug effects Dihematoporphyrin Ether / pharmacology* Enzyme Inhibitors / pharmacology HL-60 Cells HSP70 Heat-Shock Proteins / biosynthesis* Humans Models, Biological Photochemotherapy* Tumor Cells, Cultured
IF 2.721
引用数 21
WOS 分野 BIOPHYSICS BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
ヒト・動物細胞 HL60(RCB0041)