A quantitative model for the dynamics of serum prostate-specific antigen as a marker for cancerous growth: An explanation for a medical anomaly

Kristin R. Swanson, Lawrence D. True, Daniel W. Lin, Kent R. Buhler, Robert Vessella, James D. Murray

Research output: Contribution to journalArticle

36 Scopus citations


Prostate-specific antigen (PSA) is an enzyme produced by both normal and cancerous prostate epithelial cells. Although PSA is the most widely used serum marker to detect and follow patients with prostatic adenocarcinoma, there are certain anomalies in the values of serum levels of PSA that are not understood. We developed a mathematical model for the dynamics of serum levels of PSA as a function of the tumor volume. Our model results show good agreement with experimental observations and provide an explanation for the existence of significant prostatic tumor mass despite a low-serum PSA. This result can be very useful in enhancing the use of serum PSA levels as a marker for cancer growth.

Original languageEnglish (US)
Pages (from-to)2195-2199
Number of pages5
JournalAmerican Journal of Pathology
Issue number6
StatePublished - Jan 1 2001


ASJC Scopus subject areas

  • Pathology and Forensic Medicine

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