RESUMEN
This study was aimed to preliminary explore the anticancer activity, immunomodulatory effects and antimi-crobial activity of Calcitum ashing agent. Serum pharmacological method was used to prepare the serum containing Calcitum ashing agent. MTT method was used to observe the cell proliferation rate of S180 ascites tumor cells and human esophageal cancer cells cultured with the serum containing Calcitum ashing agent in vitro. In addition, this method was also used to observe the mouse spleen lymphocyte transformation rate. The Oxford Cup method was used to determine the antibacterial activity on Calcitum ashing agent in vitro. The results showed that serum containing Calcitum ashing agent inhibited the cell proliferation rate of S180 and esophageal cancer cells. Meanwhile, it had a synergistic effect with 5-fluorouracil (5-FU) on the inhibition of human esophageal cancer cells. The serum contain-ing Calcitum ashing agent induced the reduction in the mice spleen lymphocytes transformation rate. But it inhibited the reduction in the spleen lymphocytes transformation rate induced by 5-FU. The decoction with the concentration higher than 0.25 g·mL-1 had significantly inhibited the proliferation of bacteria. It was concluded that Calcitum ash-ing agent can inhibit the cell proliferation of S180 ascites tumor cells and human esophageal cancer cell in vitro. It can significantly reverse the reduction in the mice spleen lymphocytes transformation rate induced by immunode-pressant. However, the antibacterial activity still requires further study.