Chimeric antigen receptor cells for treating solid tumor
The compositions and methods described herein are directed to treating solid tumor using CAR T therapy. The compositions include CAR comprising an extracellular domain that binds a siglec protein or a receptor that binds the peptide hormone kisspeptin.
1. An antibody that binds ACPP, wherein the antibody comprises a heavy chain variable region (HVR) comprising amino acid sequence SEQ ID NO: 83 and a light chain variable region (LVR) comprising amino acid sequence SEQ ID NO: 82.
2. The antibody of claim 1 , wherein the HVR is joined to a human IgG chain constant region.
3. The antibody of claim 2 , wherein the human IgG comprises IgG1 or IgG3.
4. The antibody of claim 1 , wherein the antibody is conjugated to a cytotoxic agent.
5. The antibody of claim 4 , wherein the cytotoxic agent comprises a radioactive isotope or a toxin.
6. The antibody of claim 1 , wherein SEQ ID NO: 83 and SEQ ID NO: 82 are joined by a linker.
7. The antibody of claim 6 , wherein the linker comprises SEQ ID NO: 24 or SEQ ID NO: 184.
8. The antibody of claim 1 , wherein the antibody comprises a scFv.
9. The antibody of claim 8 , wherein the scFv comprises a linker joining SEQ ID NO: 82 and SEQ ID NO: 83.
10. The antibody of claim 8 , wherein the scFv comprises amino acid sequence SEQ ID NO: 173.
11. The antibody of claim 8 , wherein the antibody is conjugated to a cytotoxic agent.
12. The antibody of claim 11 , wherein the cytotoxic agent comprises a radioactive isotope or a toxin.
13. The antibody of claim 9 , wherein the linker comprises SEQ ID NO: 24 or SEQ ID NO: 184.