Abstract: The present application relates to ligands targeted to epidermal growth factor receptor (EGFR) and compositions for use in treating tumors. Specifically, a ligand targeted to EGFR is disclosed. The ligand comprises a heavy chain variable domain and a light chain variable domain. The ligand may be selected from the group consisting of a single chain variable fragment, a fusion protein, a monoclonal antibody, and an antigen-binding fragment thereof. The ligand may be conjugated to a liposome or a nanoparticle that encapsulates at least one chemotherapeutic agent to form a ligand-targeted liposomal or nanoparticle drug. Also disclosed are conjugates and formulations for use in treating tumors such as squamous cell carcinoma of head and neck. A method for making a ligand-targeted liposomal drug is also disclosed. The drug may be a chemotherapeutic agent selected from the group consisting of doxorubicine and vinorelbine.

Abstract: An isolated antibody or an antigen-binding fragment thereof having a specific binding affinity to an epitope located within the domain 1 or domain 3 of human vascular endothelial growth factor receptor 2 (VEGFR2; SEQ ID NO: 74) is disclosed. The epitope within the domain 3 of the VEGFR2 is located between amino acid residues 250 and 270 of SEQ ID NO: 74. Use of the antibody or antigen-binding fragment thereof in the manufacture of a medicament for inhibiting tumor growth, tumor angiogenesis, and/or inducing cancer cell cytotoxicity in a subject in need thereof is also disclosed. Also disclosed is a method of detecting the presence of VEGFR2 in a tumor vascular endothelial cell or a cancer cell in a biological sample.

Abstract: An isolated antibody or an antigen-binding fragment thereof having a specific binding affinity to an epitope located within the domain 1 or domain 3 of human vascular endothelial growth factor receptor 2 (VEGFR2; SEQ ID NO: 74) is disclosed. The epitope within the domain 3 of the VEGFR2 is located between amino acid residues 250 and 270 of SEQ ID NO: 74. Use of the antibody or antigen-binding fragment thereof in the manufacture of a medicament for inhibiting tumor growth, tumor angiogenesis, and/or inducing cancer cell cytotoxicity in a subject in need thereof is also disclosed. Also disclosed is a method of detecting the presence of VEGFR2 in a tumor vascular endothelial cell or a cancer cell in a biological sample.

Abstract: Disclosed is SARS-CoV-specific B-cell epitope and applications thereof. The epitopes are peptides and can either be expressed in phages or synthesized to diagnose SARS patients accurately. High sensitivity and specificity of the serologic detection are achievable by using a plurality of SARS-CoV-specific B-cell epitope-based peptides. Therefore, the peptides can be applied to SARS diagnosis and have potentials to be immunogens for producing antibodies against SARS.

Abstract: Disclosed is SARS-CoV-specific B-cell epitope and applications thereof. The epitopes are peptides and can either be expressed in phages or synthesized to diagnose SARS patients accurately. High sensitivity and specificity of the serologic detection are achievable by using a plurality of SARS-CoV-specific B-cell epitope-based peptides. Therefore, the peptides can be applied to SARS diagnosis and have potentials to be immunogens for producing antibodies against SARS.