A comparison between microsatellite and quantitative PCR analyses to detect frequent p16 copy number changes in primary bladder tumors

John Paul Cairns, Pei-Wen Chiang, Saravanan Ramamoorthy, David M. Kurnit, David Sidransky

Research output: Contribution to journalArticle

18 Scopus citations


We tested 70 primary bladder tumors for altered copy number of p16 (D9S1752) by microsatellite analysis and by a quantitative PCR (QPCR) assay. These two approaches were fully concordant for 53 tumors, including all 39 tumors in which microsatellite analysis detected loss. In addition, the QPCR method detected useful anomalies in 17 additional cases, including those in which D9S1752 was uninformative. QPCR was abnormal in 56 of 70 (80%) cases, whereas microsatellite analysis was abnormal in 39 of 70 (56%) cases. Although QPCR uses more DNA than microsatellite analysis, it represents a rapid, informative technique that can readily detect both chromosome 9p21 deletions and amplifications in primary bladder tumors without the need for electrophoretic separation.

Original languageEnglish (US)
Pages (from-to)441-444
Number of pages4
JournalClinical Cancer Research
Issue number2
Publication statusPublished - Feb 1998
Externally publishedYes


ASJC Scopus subject areas

  • Cancer Research
  • Oncology

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