The PSA Debate

PSA stands for Prostate Specific Antigen, a marker for prostate tissue. It was discovered by Richard J. Ablin, PhD, early in his career, in 1970. He was looking for a way to identify prostate cancer and realized that PSA would not do that, because it is produced by all prostate tissue, not just cancer. He recently wrote an op-ed piece in The New York Times expressing his dismay at the use of PSA for routine screening, a purpose to which it is not well-suited. Here is our interview with him on this issue.
Guest: Richard J. Ablin, PhD, President of the Robert Benjamin Ablin Foundation for Cancer Research and Research Professor in the Departments of Immunobiology and Pathology at the University of Arizona College of Medicine.