Recombinant Anti-Kit x Anti-VCAM-1 Bispecific Antibody (scDiabody-CH3) is a fusion protein of two scDiabodies connected together by a CH3 region. In single-chain Diabodies, an additional connecting linker is introduced between chains of the anti-Kit/anti-VCAM-1 diabody. The scDiabody with two specificities is fused to each of the CH3 chains to extend half-life. This BsAb can retarget hematopoietic stem cells toinjured myocardium. It is designed for the research of Cardiovascular disease therapy.