In order to improve the therapeutic utility of antibodies, different modifications have been suggested.One of them concerns the generation of bispecific antibody (BsAb).

• 为了增强抗体的效应功能,人们尝试多种方法改造抗体分子,双特异性抗体是改善抗体治疗效果的发展方向之一,现已成为抗体工程研究领域的热点。