Abstract Library

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#226 Insulin-like Growth Factor-1 Receptor (IGF-1R) and its Inhibition in Non-functioning Neuroendocrine Tumors

Introduction: Insulin-like growth factor-1 receptor (IGF-1R) was reported to be expressed in NET (neuroendocrine tumor) cells but its biological roles and activation status in non-functioning NET are unknown.

Conference: 8th Annual ENETSConcerence (2011)

Presenting Author:

Authors: Sasano H, Iida S, Ono K, Nakamura Y, Miki Y,

Keywords: IGF-1R, mTOR, non-functioning neuroendocrine tumor, immunohistochemistry,

#38 Expression of mTOR signaling pathway and effects of mTOR inhibitors on its pathway in human neuroendocrine tumors

Introduction: Neuroendocrine tumors (NET), especially well-differentiated endocrine tumors, are often slow-growing, indolent, and may not become clinically apparent until the manifestations of metastatic spread or carcinoid syndrome. Results of previous studies demonstrated that phosphoinositide 3-kinase (PI3K)/Akt/mTOR signaling pathway may be activated in the great majority of NET cells. mTOR inhibitors are therefore considered effective anti-tumor reagents but they may also induce an activation of PI3K/Akt and MAPK pathways as a compensatory action and reduce their own anti-tumor activities.

Conference: 7th Annual ENETSConcerence (2010)

Presenting Author: Sasano H

Authors: Iida S, Miki Y, Ono K, Sasano H,

Keywords: neuroendocrine tumors, mTOR inhibitors, MEK inhibitors, combination therapy,