期刊
ANTI-CANCER AGENTS IN MEDICINAL CHEMISTRY
卷 13, 期 5, 页码 681-688出版社
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1871520611313050002
关键词
Gastric cancer; beta-glucan; Lentinan
Natural compounds containing fungal beta-glucans have been used to improve general health for thousands of years in China and Japan. Lentinan, the backbone of beta-(1, 3)-glucan with beta-(1, 6) branches, is one of the active ingredients purified from Shiitake mushrooms and has been approved as a biological response modifier for the treatment of gastric cancer in Japan. Despite recent advances in chemotherapeutic agents, unresectable or recurrent gastric cancer remains an incurable disease, with survival rates being far from satisfactory. Recent clinical studies have shown that chemo-immunotherapy using lentinan prolongs the survival of patients with advanced gastric cancer, as compared to chemotherapy alone. In addition, trastuzumab, an antibody against HER2/neu growth factor receptor, has been used for the treatment of gastric cancer in combination with cytotoxic chemotherapeutic agents. Lentinan may exert a synergistic action with anti-cancer monoclonal antibodies to activate complement systems through the mechanism of antibody-dependent cellular cytotoxicity and complement dependent cytotoxicity. Because a better understanding of its biological activities should enable us to use lentinan more efficiently in the treatment of gastric cancer, immunological effects provided by beta-glucans, a possible mode of action of lentinan, and its clinical application including future potential uses are discussed in the present review.
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