The expression of NeuroD and mASH1 in the gastroenteropancreatic neuroendocrine tumors View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2008-06-27

AUTHORS

Takashi Shida, Mitsuko Furuya, Takashi Kishimoto, Takashi Nikaido, Tohru Tanizawa, Keiji Koda, Kenji Oda, Shigetsugu Takano, Fumio Kimura, Hiroaki Shimizu, Hiroyuki Yoshidome, Masayuki Ohtsuka, Yukio Nakatani, Masaru Miyazaki

ABSTRACT

Gastroenteropancreatic neuroendocrine tumors are uncommon and their tumor biology has not been well elucidated to date. Currently the WHO classification is widely used for the diagnosis and distinction of this tumor entity, which is sometimes cumbersome. Although neuroendocrine tumor markers do exist (ie chromograninA, synaptopyhsin, etc), sensitive and specific markers that accurately predict tumor growth and tumor behavior are still absent. In the present study, we assessed the expression of transcription factors (NeuroD and mASH1) essential for the normal fetal neuronal development in 33 gastroenteropancreatic neuroendocrine tumor patients (12 well-differentiated neuroendocrine tumors, 7 well-differentiated neuroendocrine carcinomas, and 14 poorly differentiated neuroendocrine carcinomas). NeuroD was less expressed in poorly differentiated neuroendocrine carcinoma (small-cell type) compared to well-differentiated neuroendocrine tumor (carcinoid) by reverse transcription–polymerase chain reaction. Immunohistochemical staining revealed that mASH1 was highly (sensitivity of 71%) and specifically (specificity of 95%) expressed in poorly differentiated neuroendocrine carcinoma. High NeuroD expression was seen in all well-differentiated neuroendocrine carcinoma and tumor (carcinoid) patients. Low NeuroD expression was seen in 36% (5 of 14) of poorly differentiated neuroendocrine carcinoma patients, which was associated with significant shorter overall survival. The expression pattern of these transcription factors may represent the biological and pathophysiological difference of gastroenteropancreatic neuroendocrine tumors and may become a new marker for the distinction of gastroenteropancreatic neuroendocrine tumors. More... »

PAGES

1363-1370

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/modpathol.2008.121

DOI

http://dx.doi.org/10.1038/modpathol.2008.121

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1002354258

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/18587321


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