کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2116304 | 1084825 | 2013 | 9 صفحه PDF | دانلود رایگان |

Bleomycin (BLM) is an example of an anticancer drug that should be delivered into cytosol for its efficient therapeutic action. With this in mind, we developed octaarginine (R8)-modified fusogenic DOPE-liposomes (R8-DOPE-BLM). R8-modification dramatically increased (up to 50-fold) the cell-liposome interaction. R8-DOPE-liposomes were internalized via macropinocytosis and did not end up in the lysosomes. R8-DOPE-BLM led to a significantly stronger cell death and DNA damage in vitro relative to all controls. R8-DOPE-BLM demonstrated a prominent anticancer effect in the BALB/c mice bearing 4T1 tumors. Thus, R8-DOPE-BLM provided efficient intracellular delivery of BLM leading to strong tumor growth inhibition in vivo.
► Octaarginine (R8)-modified fusogenic DOPE-liposomes were developed for improved cytosolic delivery of bleomycin (BLM).
► R8-modification dramatically increased (up to 50-fold) the cell-liposome interaction.
► R8-DOPE-liposomes were internalized via macropinocytosis and released their hydrophilic loads to the cytoplasm.
► BLM-loaded R8-DOPE-liposomes demonstrated a strong cytotoxic effect and DNA damage in vitro.
► Treatment of 4T1 xenograft-bearing mice with R8-DOPE-BLM strongly inhibited the tumor growth.
Journal: Cancer Letters - Volume 334, Issue 2, 1 July 2013, Pages 293–301