| abstract |
The present invention provides a multispecific fusion protein that does not contain an Fc region and can specifically bind to two or more antigens. In one embodiment, a multispecific fusion protein comprising the following structural formulas (I) and (II) is provided: N'-A-L1-X-C' (I); and N'-B-L1-Y-C' (II). The fusion protein may bind to cancer cells and immune cells, and may enhance the activity of immune cells. Therefore, the fusion protein can be used as an anticancer agent. |