© 2000 by Oxford University Press
Journal of the National Cancer Institute, Vol. 92, No. 23, 1941-1942,
December 6, 2000
© 2000 Oxford University Press
BRIEF COMMUNICATION |
Expression of Nuclear Antigen Ki-67 in Prostate Cancer Needle Biopsy and Radical Prostatectomy Specimens
Affiliations of authors: N. R. Mucci (Division of Hematology/Oncology, Department of Internal Medicine), M. A. Rubin (Department of Pathology and Section of Urology, Department of Surgery), M. S. Strawderman (Department of Biostatistics), J. E. Montie (Section of Urology, Department of Surgery), D. C. Smith, K. J. Pienta (Division of Hematology/Oncology, Department of Internal Medicine and Section of Urology, Department of Surgery), University of Michigan, Comprehensive Cancer and Geriatrics Center, Ann Arbor.
Correspondence to: Kenneth J. Pienta, M.D., Departments of Internal Medicine and Surgery, The University of Michigan, 1500 E. Medical Center Dr., 7303 CCGC, Ann Arbor, MI 48109-0946 (e-mail: kpienta@umich.edu).
A good biomarker is defined as any test (molecular, morphometric, etc.) that adds independent information to standard prognostic indicators (e.g., pathologic evaluation or clinical stage), that can be reliably reproduced in the laboratory setting, and that aids in choosing treatment options (1). The primary objective of this study was to determine if the proliferation marker Ki-67, a nuclear antigen and molecular marker known to be associated with the progression of cancer, had significantly different levels of expression in normal prostate tissue, high-grade prostatic intraepithelial neoplasia (HGPIN), and prostate adenocarcinoma (PCA) (2
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