PMID- 23416450 OWN - NLM STAT- MEDLINE DCOM- 20130521 LR - 20211021 IS - 1546-1726 (Electronic) IS - 1097-6256 (Print) IS - 1097-6256 (Linking) VI - 16 IP - 4 DP - 2013 Apr TI - EGF transactivation of Trk receptors regulates the migration of newborn cortical neurons. PG - 407-15 LID - 10.1038/nn.3333 [doi] AB - The development of neuronal networks in the neocortex depends on control mechanisms for mitosis and migration that allow newborn neurons to find their accurate position. Multiple mitogens, neurotrophic factors, guidance molecules and their corresponding receptors are involved in this process, but the mechanisms by which these signals are integrated are only poorly understood. We found that TrkB and TrkC, the receptors for brain-derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3), are activated by epidermal growth factor receptor (EGFR) signaling rather than by BDNF or NT-3 in embryonic mouse cortical precursor cells. This transactivation event regulated migration of early neuronal cells to their final position in the developing cortex. Transactivation by EGF led to membrane translocation of TrkB, promoting its signaling responsiveness. Our results provide genetic evidence that TrkB and TrkC activation in early cortical neurons do not depend on BDNF and NT-3, but instead on transactivation by EGFR signaling. FAU - Puehringer, Dirk AU - Puehringer D AD - Institute for Clinical Neurobiology, University of Wuerzburg, Wuerzburg, Germany. FAU - Orel, Nadiya AU - Orel N FAU - Luningschror, Patrick AU - Luningschror P FAU - Subramanian, Narayan AU - Subramanian N FAU - Herrmann, Thomas AU - Herrmann T FAU - Chao, Moses V AU - Chao MV FAU - Sendtner, Michael AU - Sendtner M LA - eng GR - R01 AG025970/AG/NIA NIH HHS/United States GR - R01 NS021072/NS/NINDS NIH HHS/United States GR - R56 NS021072/NS/NINDS NIH HHS/United States GR - NS21072-24/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20130217 PL - United States TA - Nat Neurosci JT - Nature neuroscience JID - 9809671 RN - 62229-50-9 (Epidermal Growth Factor) RN - EC 2.7.10.1 (Receptor, trkB) RN - EC 2.7.10.1 (Receptor, trkC) SB - IM MH - Animals MH - Animals, Newborn MH - Cell Movement/*physiology MH - Cells, Cultured MH - Cerebral Cortex/cytology/metabolism MH - Epidermal Growth Factor/*physiology MH - Female MH - Mice MH - Mice, Inbred C57BL MH - Mice, Transgenic MH - Neurons/metabolism MH - Pregnancy MH - Receptor, trkB/genetics/*metabolism MH - Receptor, trkC/genetics/*metabolism MH - Signal Transduction/physiology MH - Transcriptional Activation/*physiology PMC - PMC4148818 MID - NIHMS615618 COIS- COMPETING FINANCIAL INTERESTS The authors declare no competing financial interests. EDAT- 2013/02/19 06:00 MHDA- 2013/05/23 06:00 PMCR- 2014/08/29 CRDT- 2013/02/19 06:00 PHST- 2012/07/31 00:00 [received] PHST- 2013/01/17 00:00 [accepted] PHST- 2013/02/19 06:00 [entrez] PHST- 2013/02/19 06:00 [pubmed] PHST- 2013/05/23 06:00 [medline] PHST- 2014/08/29 00:00 [pmc-release] AID - nn.3333 [pii] AID - 10.1038/nn.3333 [doi] PST - ppublish SO - Nat Neurosci. 2013 Apr;16(4):407-15. doi: 10.1038/nn.3333. Epub 2013 Feb 17.