Abstract
Background Prostate specific membrane antigen (PSMA) is a promising protein for breast cancer
patients. It has not only been detected in prostate cancer but is also expressed by
tumor cells and the endothelial cells of tumor vessels in breast cancer patients.
PSMA plays a role in tumor progression and tumor angiogenesis. For this reason, a
number of diagnostic and therapeutic methods to target PSMA have been developed.
Method This paper provides a general structured overview of PSMA and its oncogenic potential,
with a special focus on its role in breast cancer. This narrative review is based
on a selective literature search carried out in PubMed and the library of Freiburg
University Clinical Center. The following key words were used for the search: “PSMA”,
“PSMA and breast cancer”, “PSMA PET/CT”, “PSMA tumor progression”. Relevant articles
were explicitly read through, processed, and summarized.
Conclusion PSMA could be a new diagnostic and therapeutic alternative, particularly for triple-negative
breast cancer. It appears to be a potential predictive and prognostic marker.
Key words
PSMA - breast cancer - radioligand therapy - immunohistochemistry - PET/CT