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Loss of Wnt-5α is associated with an invasive phenotype of extramammary Paget's disease.
MedLine Citation:
PMID:  21352264     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background: The Wnt (wingless-type MMTV integration site) gene family encodes secretory signaling molecules that play a diverse biological role in the regulation of normal and pathological processes, including cell growth, differentiation and oncogenesis. However, the role of Wnt genes in the development of extramammary Paget's disease remains unknown. Objective: To investigate the expression of Wnt-1, Wnt-5α and their downstream genes, β-catenin and c-Myc, in extramammary Paget's disease. Methods: Paraffin-embedded specimens of extramammary Paget's disease (33 specimens from 22 patients), including 7 specimens with dermal invasion and 4 with lymph node metastasis, were examined immunohistochemically for Wnt-1, Wnt-5α, β-catenin and c-Myc. Seven normal genital skin specimens served as controls. Results: The expression levels of Wnt-1 and β-catenin in extramammary Paget's disease were significantly correlated with each other; however, their expression levels in the invasive extramammary Paget's disease were similar to those of wholly intraepithelial extramammary Paget's disease. Nuclear expression of c-Myc was significantly higher in the invasive extramammary Paget's disease in comparison with intraepithelial extramammary Paget's disease. Interestingly, the expression of Wnt-5α in invasive extramammary Paget's disease was significantly downregulated compared to wholly intraepithelial extramammary Paget's disease. Conclusion: The Wnt-1/β-catenin pathway may not play an important role in the progression of extramammary Paget's disease. The loss of Wnt-5α, however, may play a role in the invasiveness of extramammary Paget's disease. Xie L, Hayashida S, Furue M. Loss of Wnt-5α is associated with an invasive phenotype of extramammary Paget's disease.
Authors:
Lining Xie; Sayaka Hayashida; Masutaka Furue
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-24
Journal Detail:
Title:  Journal of cutaneous pathology     Volume:  -     ISSN:  1600-0560     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0425124     Medline TA:  J Cutan Pathol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 John Wiley & Sons A/S.
Affiliation:
Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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