Identification of PSA peptide mimotopes using phage display peptide library

Arulkumaran Shanmugam, Robert Suriano, Devyani Chaudhuri, Shilpi Rajoria, Andrea George, Abraham Mittelman, Raj K. Tiwari

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Prostate cancer (PCa) is one of the most common types of cancer in men in the United States and is the second leading cause of cancer related death in men. Clinically, secreted prostate specific antigen (PSA) has gained recognition because of its proteolytic activity being directly linked to PCa cell proliferation leading to disease initiation and progression. Using phage display technology, we identified four distinct cyclical peptides. These peptides apart from differences in their amino acid sequence, elicited minimal cross reactive antibody responses against each other. One of the four peptides analyzed produced an antibody response that recognizes the PSA protein. We demonstrate that the synthetic PSA peptide mimics identified in our study are immunologically active and produce neutralizing activity and this has relevance and utility for prostate cancer disease progression.

Original languageEnglish (US)
Pages (from-to)1097-1102
Number of pages6
Issue number6
StatePublished - Jun 2011
Externally publishedYes


  • PSA
  • Peptide mimotope
  • Phage display
  • Prostate cancer

ASJC Scopus subject areas

  • Biochemistry
  • Physiology
  • Endocrinology
  • Cellular and Molecular Neuroscience


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