Secretin induces neurite outgrowth of PC12 through cAMP-mitogen-activated protein kinase pathway

The gastrointestinal functions of secretin have been fairly well established. However, its function and mode of action within the nervous system remain largely unclear. To gain insight into this area, we have attempted to determine the effects of secretin on neuronal differentiation. Here, we report...

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Published in:Experimental & molecular medicine 2006, 38(1), , pp.85-93
Main Authors: 김현수, Sanatombi Yumkham, 김선희, 예경무, 신유찬, 류성호, 서판길
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생화학
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container_title Experimental & molecular medicine
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creator 김현수
Sanatombi Yumkham
김선희
예경무
신유찬
류성호
서판길
description The gastrointestinal functions of secretin have been fairly well established. However, its function and mode of action within the nervous system remain largely unclear. To gain insight into this area, we have attempted to determine the effects of secretin on neuronal differentiation. Here, we report that secretin induces the generation of neurite outgrowth in pheochromocytoma PC12 cells. The expressions of Tau and beta-tubulin, neuronal differentiation mark-etin stimulation. In addition, secretin induces sustained mitogen-acti-vated protein kinase (MAPK) activation and also stimulates the cAMP secretion. Moreover, the neurite outgrowth elicited by secretin is suppressed to a marked degree in the presence of either PD98059, a specific MAPK/ERK kinase (MEK) inhibitor, or H89, a specific protein kinase A (PKA) inhibitor. Taken together, these observations demonstrate that secretin induces neurite outgrowth of PC12 cells through cAMP- MAPK pathway, and provide a novel insight into the manner in which secretin participates in neuritogenesis. KCI Citation Count: 23
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title Secretin induces neurite outgrowth of PC12 through cAMP-mitogen-activated protein kinase pathway
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