Effect of adriamycin nanoparticles conjugated with hyaluronic acid on oral squamous cell carcinomas in vitro / 中国组织工程研究

ABSTRACT

ACKGROUND: Adriamycin (ADM) can specifically conjugate with receptor. In particular, ADM nanopartides play a target role in decreasing the cytotoxicity.OBJECTIVE: To investigate the targeting effect of addamycin nanoparticles conjugated with hyaluronic acid (ADM-HA-SSL) on oral squamous carcinomas calls in vitro.DESIGN, TIME AND SETTING: An in vitro contrast observation was performed in College of Madne Life Science, Ocean University of China from January to July 2008. MATERIALS: Oral squamous carcinomas calls were sincerely presented by Professor Chen from the Ninth People's Hospital of Shanghai; ADM-HA-SSL (drug loading 156 mg/L) was sincerely presented by Professor Liu from College of Marine Life Science, Ocean University of Chine.METHODS: Oral squamous carcinomas cells were cultured with 0.5, 1.0, 5.0, and 10.0 mg/L ADM-HA-SSL. MTT assay was used to detect the targeted cytotoxicity of ADM-HA-SSL against oral squamous cell carcinomas. With the concentrations of 5.0 and 10.0 mg/L, call apoptosis was ascertained by call flow cytometry after 6, 12, 24 and 48 hours. MAIN OUTCOME MEASURES: Cell survival rate and apoptosis rate.RESULTS: At 24 and 48 hours after induction, cytotoxicity assay revealed that the effect of ADM-HA-SSL was superior to that of free ADM (t=5.78-42.05, P < 0.01). The results of flow cytometry showed that the apoptosis rate was enhanced with the increase of the time (F=4 200.40, 4 775.36, P < 0.01), and the rate was also increased at the same time point with the increase ofconcentration (t=12.06-20.08, P < 0.05).CONCLUSION: ADM-HA-SSL can specifically recognize oral squamous carcinomas cells and deliver adriamycin into the cells. And the effect is enhanced by the time prolonging.