Document Detail


Sonic hedgehog signalling proteins are frequently expressed in retinoblastoma and are associated with aggressive clinicopathological features.
MedLine Citation:
PMID:  25296932     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
AIMS: This study aimed to examine the expression of Sonic hedgehog (SHH) signalling proteins in retinoblastoma and to evaluate its clinical significance.
METHODS: Seventy-nine enucleated retinoblastoma tumours were investigated immunohistochemically using antibodies against SHH pathway proteins, such as SHH, glioma-associated oncogene homologue (GLI) 1, GLI2, GLI3 and ABC binding cassette G2 (ABCG2). Western blotting of SHH signalling proteins was performed in two retinoblastoma cell lines.
RESULTS: SHH was expressed in most retinoblastoma cases (78 of 79, 98.7%), with 21 cases (26.6%) showing strong expression. GLI1 and GLI2 were also frequently expressed: 67 of 78 cases (85.9%) and 71 of 77 cases (92.2%), respectively. GLI3, a transcriptional repressor, was expressed at low levels in 23 of the 78 cases (29.5%). High ABCG2 expression was found in 23 of the 78 cases (29.5%). High expression levels of these proteins in retinoblastoma cell lines were confirmed by western blotting. The expression of SHH was associated with advanced stages, local invasion and metastasis (all p<0.05).
CONCLUSIONS: SHH signalling molecules were frequently expressed in retinoblastoma tumour cells, and high SHH expression was closely related to an advanced disease status. Our results suggest that the SHH signalling pathway may play a role in the progression of retinoblastoma.
Authors:
Ji-Young Choe; Ji Yun Yun; Yoon Kyung Jeon; Se Hoon Kim; Ho-Kyung Choung; Sohee Oh; Mira Park; Ji Eun Kim
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-10-8
Journal Detail:
Title:  Journal of clinical pathology     Volume:  -     ISSN:  1472-4146     ISO Abbreviation:  J. Clin. Pathol.     Publication Date:  2014 Oct 
Date Detail:
Created Date:  2014-10-9     Completed Date:  -     Revised Date:  2014-10-10    
Medline Journal Info:
Nlm Unique ID:  0376601     Medline TA:  J Clin Pathol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.
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