Document Detail


{beta}-Catenin Is a Useful Adjunct Immunohistochemical Marker for the Diagnosis of Pulmonary Lymphangioleiomyomatosis.
MedLine Citation:
PMID:  21502434     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Lymphangioleiomyomatosis (LAM) is a rare multisystem disease leading to cystic destruction of the lung parenchyma and is associated with abnormal smooth muscle proliferation affecting airways, lymphatics, and blood vessels. LAM occurs sporadically or in association with the tuberous sclerosis complex (TSC). Recent evidence demonstrates the role of aberrant β-catenin signaling in TSC. To further understand the pathogenesis of LAM and to examine the diagnostic usefulness of β-catenin, we examined protein expression in 28 pulmonary LAM cases and 10 cases of renal angiomyolipoma resected from patients with sporadic LAM. Immunohistochemical analysis was performed for established markers of LAM cells (HMB45, estrogen receptor [ER]-α, and progesterone receptor [PR]) and β-catenin. All LAM cases were positive for β-catenin and demonstrated high specificity with overall immunoreactivity superior to HMB45, ER-α, and PR. Similar expression was demonstrated in renal angiomyolipoma. Our results indicate that β-catenin is a useful marker of LAM and may be clinically useful in the diagnostic setting.
Authors:
Richard J Flavin; Jennifer Cook; Michelangelo Fiorentino; Dyane Bailey; Myles Brown; Massimo F Loda
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of clinical pathology     Volume:  135     ISSN:  1943-7722     ISO Abbreviation:  Am. J. Clin. Pathol.     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-04-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370470     Medline TA:  Am J Clin Pathol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  776-82     Citation Subset:  AIM; IM    
Affiliation:
Center for Molecular Oncologic Pathology, Dana Farber Cancer Institute, Boston, MA 02115.
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