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Objective: To study the efficacy and mechanism of AT-1 a new compound (an aqueous agent extracted from a Traditional Chinese herb with antiplatelet efficacy) on antitumor metastases in mice. Methods: AT-1,a compound extracted from a Traditional Chinese herb, was prepared by our lab. C57BL/6 female mice, which were transplanted H22 liver cancer cells, received the agent. The tumor nodules, the pulmonary metastasis rate and tumor cell proliferation activity were tested. The tumor cells were exposed to different concentrations of AT-1, and then the condition of the tumor proliferations were tested. Results: High and middle dosages of AT-1 inhibited both the lymphatic and blood systemic tumor pulmonary metastases significantly, but had no effect on inhibition of the tumor cell proliferation in vitro. Conclusion:The major antitumor actions of AT-1 may be on antitumor metastases, and the compounnd may be a new candidate for antitumor metastases agent. More study of the mechanism and action of AT1 on antitumor metastases and the actions are still being done deeply.
