NDLI: Lack of Prognostic Significance of Survivin in Pediatric Medulloblastoma

Content Provider	Springer Nature Link
Author	Faccion, Roberta Soares Ferreira, Regina Moreira Grabois, Marília Fornaciari Fonseca, Theresinha Carvalho Oliveira, Jose Antonio Maia, Raquel Ciuvalschi
Copyright Year	2011
Abstract	Medulloblastoma (MDB) is the most common malignant cerebellar tumor in children. Because of the significant rate of mortality and treatment-related morbidity, the identification of prognostic factors could lead to a more accurate selection of patients who can benefit from a less aggressive therapy and improve risk stratification. Survivin is an inhibitor of apoptosis protein (IAP), the expression of which has been associated with worse prognosis in MDB. However, both of its subcellular localizations may contribute to tumor progression, and ultimately, survivin subcellular localization prognostic value depends on tumor type biological features. The goal of this study was to analyze these survivin features in the pediatric MDB tumor samples and its impact on clinical outcome. Survivin expression and subcellular localization were accessed by immunohistochemistry in a series of 41 tumor samples. Kaplan-Meier survival curves were compared using the log-rank test. Survivin expression ranged from completely absent to fully present in a notably higher pattern of nuclear localization than cytoplasmic (19 of 41 versus 4 of 41, respectively). However, survivin expression and subcellular localization were not associated with five-year overall survival or metastasis status at diagnosis, which was the only statistically significant prognostic factor in our series (p = 0.008). Taken together, our results suggest that survivin expression should be further studied in large, multicenter series to determine its accurate impact on prognosis and pathobiology of pediatric MDB.
Starting Page	899
Ending Page	908
Page Count	10
File Format	PDF
ISSN	12194956
Journal	Pathology & Oncology Research
Volume Number	17
Issue Number	4
e-ISSN	15322807
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-06-17
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Survivin Childhood Medulloblastoma Prognostic factor Immunohistochemistry Immunology Pathology Oncology Biomedicine general Cancer Research
Content Type	Text
Resource Type	Article
Subject	Cancer Research Pathology and Forensic Medicine Oncology

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