Abstract: The present invention relates to a novel dual-targeting protein comprising: a protein that binds specifically to delta-like ligand 4 (DLL4); and an antibody that binds specifically to vascular endothelial cell growth factor (VEGF).

Abstract: The present invention relates to an antibody-drug conjugate comprising a drug conjugated to an antibody, a preparation method thereof and the use thereof.

Abstract: The present invention relates to a novel monoclonal antibody that binds specifically to delta-like ligand (DLL4), and more particularly to a monoclonal antibody that binds specifically to human delta-like ligand 4 to effectively inhibit the interaction between delta-like ligand 4 and Notch receptor, a polynucleotide encoding the monoclonal antibody, an expression vector comprising the polynucleotide, a transformant comprising the expression vector, a method for preparing the monoclonal antibody, a pharmaceutical composition for preventing or treating cancer comprising the monoclonal antibody, a composition for diagnosing cancer comprising the monoclonal antibody, a method for diagnosing cancer using the monoclonal antibody, and a pharmaceutical composition for preventing or treating autoimmune disease comprising the monoclonal antibody.