RESUMO
<p><b>OBJECTIVE</b>To investigate the inhibitory effect of tyroservatide (YSV) on growth of hepatocellular carcinoma cells.</p><p><b>METHODS</b>In vitro effects of YSV on five human hepatocellular carcinoma cell lines were assayed by MTS. In vivo effects of YSV on 5 human hepatocellular carcinoma cell lines were assayed by hollow fiber tumor model.</p><p><b>RESULTS</b>After treatment with YSV at a dose of 0.1 approximately 1.6 mg/ml, the growth of the five cell lines was significantly inhibited in vitro compared with that of the control group (P < 0.05). Especially, YSL remarkably inhibited the growth of human hepatocellular carcinoma BEL-7402 cells, i.e. the cell growth was inhibited by 63.3% after treatment with YSL at 1.6 mg/ml. The hollow fiber tumor model demonstrated that YSL (320 microg x kg(-1) x d(-1) and 640 microg x kg(-1) x d(-1)) treatment significantly inhibited the in vivo growth of the five cancer cell lines compared with that in the saline control (P < 0.05). YSL showed the highest level of inhibition of human BEL-7402 hepatocellular carcinoma cells, with an inhibitory index of 53.1% at 320 microg x kg(-1) x d(-1).</p><p><b>CONCLUSION</b>As a new method, hollow fiber assay may be used to evaluate the inhibitory effect of drugs on different tumor cells in vivo, rapidly, accurately and economically. Our results provide an instruction and evidence for clinical use of YSV.</p>
Assuntos
Animais , Feminino , Humanos , Camundongos , Antineoplásicos , Farmacologia , Carcinoma Hepatocelular , Patologia , Linhagem Celular Tumoral , Proliferação de Células , Neoplasias Hepáticas , Patologia , Camundongos Endogâmicos BALB C , Camundongos Nus , Transplante de Neoplasias , Oligopeptídeos , Farmacologia , Distribuição AleatóriaRESUMO
<p><b>OBJECTIVE</b>To set up a new analysis method of the traditional Chinese medicine Scorpio.</p><p><b>METHODS</b>Ten Scorpio samples were obtained from Hubei, Shaanxi, and Shandong provinces and analyzed with X-ray diffraction Fourier pattern technique to obtain the geometric topology and characteristic marked peak of Scorpio.</p><p><b>RESULTS</b>The geometric topologies of 9 samples were similar, excepting Sample 7#. Totally 11 characteristic marked peaks were observed among these 9 samples.</p><p><b>CONCLUSION</b>X-ray diffraction Fourier pattern is a useful tool for the identification and quality control of the Scorpio.</p>