Recombinant Anti-Kit x Anti-VCAM-1 Bispecific Antibody (IgG(L)-scFv) is formed by an IgG and two scFv moieties. The scFv fragments from an anti-Kit antibody are fused to the C terminus of an anti-VCAM-1 IgG light (L) chains, or vice versa. It is a type of appended IgGs, which is bispecific and tetravalent (2+2 antigen-binding valency). This BsAb can retarget hematopoietic stem cells toinjured myocardium. It is designed for the research of Cardiovascular disease therapy.