Endocrine Therapy for Scirrhous-Type Gastric Cancer

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It is generally speaking that scirrhous type gastric cancer shows poor ptgnosis. We reported that some of gastric cancers were responded to endocrine therapy. In this study, it is examined whether new endocrinie therapy drug, aromatase inhibitor is effective for gastric cancer as breast cancer. In vitro-study, aromatase inhibitor (GGS. 16949A) inhibited gastric cancer proliferation as breast cancer cells. The activities of aromatase were high in gastric cancer tissues and omental tissues as in breast cancer tissues. After administration of aromatase inhibitors, the estrogen levels of gastric cancer decreased. These results suggest that aromatase inhibitors is useful for endocrine treatment of gastric cancer.