Inhibitory Effect of Anti-HER-2 Anti-CD3 Bi-specific Antibody on the Growth of Gastric Carcinoma

作     者：FANG Xue-dong REN Hui ZHANC Yan WANG Guan-jun 

作者机构：No. 2 Affiliated Hospital Jilin University Changchun 130041 P. R. China China-Japan Union Hospital Jilin University Changchun 130033 P. R. China No. 1 Affiliated Hospital Jilin University Changchun 130022 P. R. China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2006年第22卷第2期

页      面：193-196页

核心收录：

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：Anti-HER-2 × anti-CD3 bi-specific antibody HER-2/neu Human gastric carcinoma Nude mice 

摘      要：To evaluate the effect of anti-HER-2 × anti-CD3 bi-specific antibody（BsAb） on the growth of HER-2/neu-expressing human gastric carcinoma in vitro and in vivo, an MTT assay was carried out to test the inhibitive rates of herceptin, anti-CD3 and BsAb antibodies on SGC-7901 gastric carcinoma cells. Immunocytochemistry methods were used to test the HER-2 level of SGC-7901. Nude mice models were employed to test the effect of HER-2 CD3 BsAh combined with effector ceils（ peripheral blood lymphatic cells of healthy human beings） on the growth of tumors in animals. Compared with that of the untreated control group, the tumor cell growth rates in vitro and in vivo will both be significantly inhibited when treated with effector cells combined with anti-CD3 McAb, herceptin or HER2 CD3 BsAb （p 〈0. 05）, and the growth inhibition is the most remarkable in the group treated with HER2 CD3 BsAb combined with effector cells. The growth of tumor xenografts will also be significantly inhibited in the group treated with HER2 CD3 BsAb combined with effector cells when compared with that in the group treated with anti-CD3 McAb or the group treated with herceptin combined with effector cells（p 〈0. 05）. We can conclude that HER-2/neu is possibly a useful target for immunotherapy of gastric carcinoma, and anti-HER2 × anti-CD3 BsAb has evident anti-tumor efficacy both, in vitro and in vivo.