Influence of sargassum fusiforme polysaccharide on apoptosis of tumor cells / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study mechanism of antitumor activity of Sargassum Fusiforme Polysaccharide (SFPS).</p><p><b>METHOD</b>The effect on cell cycle and apoptosis was studied with flow cytometry (FCM). Intracellular calcium concentration [Ca2+]i was marked with Fluo-3/AM and measured with laser scanner confocal microscope (LSCM).</p><p><b>RESULT</b>SFPS inhibited G0/G1 stage SGC-7901 from entering to S stage and increased APO%. The [Ca2+]i showed a transient rise and return to the original level. The concentration could be raised again by administering CaCl2.</p><p><b>CONCLUSION</b>The antitumor effect of SFPS seems to be accomplished through the apoptosis associated with the increase in intracellular calcium concentration. Intracellular stores release the calcium during its action.</p>