Abstract
Gypenoside (Gyp) is easily degraded in the gastrointestinal tract, resulting in its low bioavailability. We aimed to develop a tumor-targeted Gyp nanodrug delivery system and to investigate its antitumor effect in vitro. We used Gyp as the therapeutic drug molecule, mesoporous silica (MSN) and liposome (Lipo) as the drug carrier and protective layers, and aptamer SYL3C as the targeting element to establish a tumor-targeted nanodrug delivery system (i.e., SYL3C-Lipo@Gyp-MSN). The characteristics of SYL3C-Lipo@Gyp-MSN were investigated, and its drug release performance, cell uptake, and antitumor activity in vitro were evaluated. A tumor-targeted Gyp nanodrug delivery system was successfully prepared. The SYL3C-Lipo@Gyp-MSN was spherical or ellipsoidal; had good dispersion, which enabled it to specifically target and kill the liver tumor cell HepG2; and effectively protected the early leakage of Gyp. We have established a tumor-targeted nanodrug delivery system that can target and kill liver cancer cells and may provide a strategy for preparing new nanodrug-loaded preparations of traditional Chinese medicine.
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