Human monoclonal antibodies to ganglioside GD2
The present invention provides compositions for the production of an antibody or functional fragment thereof directed against disialoganglioside-GD2. The compositions of the invention include polynucleotides encoding a heavy chain and/or a light chain variable domain that binds to GD2. The invention also provides an isolated antibody or functional fragment thereof and methods of treating or preventing a disease, such as cancer or tumor formation, wherein the antibody or functional fragment includes a variable heavy chain domain and a variable light chain domain that has an amino acid sequence provided herein. The invention further provides a conjugate of an antibody or functional fragment thereof conjugated or recombinantly fused to a diagnostic agent, detectable agent or therapeutic agent, and methods of treating, preventing or diagnosing a disease in a subject in need thereof.
1. A method for treating a tumor expressing GD2, said method comprising administering to a subject in need thereof a therapeutically effective amount of a pharmaceutical composition comprising an antibody or a functional fragment thereof that binds to GD2, and a pharmaceutically acceptable carrier, wherein the antibody or a functional fragment thereof comprises a variable heavy chain (VH) domain and a variable light chain (VL) domain,
wherein said VH domain comprises VH CDR1, VH CDR2, and VH CDR3 amino acid sequences that comprise residues 26-33, residues 51-58, and residues 97-109 of SEQ ID NO: 2, respectively; and
wherein said VL domain comprises VL CDR1, VL CDR2, and VL CDR3 amino acid sequences that comprise residues 27-37, residues 55-57, and residues 94-102 of SEQ ID NO: 4, respectively.
2. The method of claim 1 , wherein said tumor is selected from the group consisting of neuroblastoma, osteosarcomas and other subsets of sarcomas, melanomas, gliomas, small cell lung cancer, breast cancer, medulloblastoma, and astrocytoma.
3. The method of claim 2 , wherein said breast cancer comprises breast cancer stem cells.
4. The method of claim 1 , further comprising administering concurrently or successively a second therapeutic agent.
5. The method of claim 4 , wherein said second therapeutic agent is a chemotherapeutic agent or an immunotherapeutic agent.
6. The method of claim 1 , wherein said antibody is a human antibody.
7. The method of claim 1 , wherein said functional fragment of the antibody is selected from the group consisting of: a Fab, a Fab′, a F(ab′)2, a scFV, a diabody, a triabody, a minibody.
8. The method of claim 1 , wherein said antibody is a monoclonal antibody.
9. The method of claim 1 , wherein said antibody is an IgG or IgM isotope.
10. The method of claim 9 , wherein said IgG antibody is an IgG1 subclass.
11. The method of claim 1 , wherein the antibody comprises a VH domain and a VL domain, wherein said VH domain has the amino acid sequence of SEQ ID NO: 2; and said VL domain has the amino acid sequence of SEQ ID NO: 4.
12. The method of claim 1 , wherein the antibody or a functional fragment thereof is characterized by GD2 binding specificity of the antibody clone 1B7 having a VH domain as defined by the amino acid sequence of SEQ ID NO: 2 and a VL domain as defined by the amino acid sequence of SEQ ID NO: 4.
13. The method of claim 1 , wherein the antibody is a recombinant antibody.
14. The method of claim 1 , wherein the antibody comprises a kappa light chain.