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Published on: October 30, 2013
Immunohistochemistry Biomarkers in Nonmuscle Invasive Bladder Cancer
Alana D Ranzi1, Jéssica N L da Silva, Túlio M Graziottin
1*Research Laboratory of Pathology, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil †Departament of Urology, Hospital Santa Rita, Hospital system of the Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Brazil ‡Department of Microbial & Cellular Sciences, Faculty of Health & Medical Sciences, University of Surrey, Guildford, UK.
Abstract:
Bladder cancer (BCa) is the most frequent urinary tract neoplasm. BCa results in significant mortality when the disease presents as muscle invasive. Around 75% to 80% of patients present with nonmuscle invasive bladder cancer (NMIBC), but recurrence and progression are significant issues, compelling current guidelines to recommend long-term surveillance. There is therefore an urgent and unmet need to identify and validate accurate biomarkers for the detection of disease recurrence to improve quality of life for the patients and reduce costs for health care providers, while maintaining or improving current outcomes. In this review, 38 publications on immunohistochemistry prognostic biomarkers, that were studied may be related in nonmuscle invasive bladder cancer, have been analyzed. The studies were organized according to the evaluated marker and their findings. It was demonstrated that the combination of independent complementary biomarkers could allow a more accurate prognosis than an isolated marker. Biomarkers, including p53, Ki-67, and CK20, with classic and prognostic factors with recurrence and novel markers such as EN2 may provide a more accurate prediction of outcome compared with any single marker, improving risk stratification and clinical management of patients with BCa.
