abstract |
The invention provides a novel prostate cell-surface antigen, designated Prostate Stem Cell Antigen (PSCA), which is widely over-expressed across all stages of prostate cancer, including high grade prostatic intraepithelial neoplasia (PIN), androgen-dependent and androgen-independent prostate tumors. The invention also provides a method for detecting a Prostate Stem Cell Antigen (PSCA) protein of bone (SEQ ID NO:2), comprising obtaining a sample; contacting the sample with an antibody that recognizes and binds the PSCA protein; and, detecting binding of the antibody with the PSCA protein in the sample. |