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NeuroD1 regulates survival and migration of neuroendocrine lung carcinomas via signaling molecules TrkB and NCAM

Small-cell lung cancer and other aggressive neuroendocrine cancers are often associated with early dissemination and frequent metastases. We demonstrate that neurogenic differentiation 1 (NeuroD1) is a regulatory hub securing cross talk among survival and migratory-inducing signaling pathways in neu...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences - PNAS 2013-04, Vol.110 (16), p.6524-6529
Main Authors: Osborne, Jihan K., Larsen, Jill E., Shields, Misty D., Gonzales, Joshua X., Shames, David S., Sato, Mitsuo, Kulkarni, Ashwinikumar, Wistuba, Ignacio I., Girard, Luc, Minna, John D., Cobb, Melanie H.
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Language:English
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Summary:Small-cell lung cancer and other aggressive neuroendocrine cancers are often associated with early dissemination and frequent metastases. We demonstrate that neurogenic differentiation 1 (NeuroD1) is a regulatory hub securing cross talk among survival and migratory-inducing signaling pathways in neuroendocrine lung carcinomas. We find that NeuroD1 promotes tumor cell survival and metastasis in aggressive neuroendocrine lung tumors through regulation of the receptor tyrosine kinase tropomyosinrelated kinase B (TrkB). Like TrkB, the prometastatic signaling molecule neural cell adhesion molecule (NCAM) is a downstream target of NeuroD1, whose impaired expression mirrors loss of NeuroD1. TrkB and NCAM may be therapeutic targets for aggressive neuroendocrine cancers that express NeuroD1.
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.1303932110