PMID- 16890297 OWN - NLM STAT- MEDLINE DCOM- 20061129 LR - 20131121 IS - 0165-5728 (Print) IS - 0165-5728 (Linking) VI - 179 IP - 1-2 DP - 2006 Oct TI - Insulin-like growth factor-I enhances the biological activity of brain-derived neurotrophic factor on cerebrocortical neurons. PG - 186-90 AB - Insulin-like growth factor (IGF)-I and brain-derived neurotrophic factor (BDNF) act within the brain to enhance neuronal survival and plasticity. We extend these findings by showing that the presence of both neurotrophins is required to depress the rise in intracellular Ca2+ caused by glutamate in primary cultures of cerebrocortical neurons. IGF-I enhanced expression of BDNF receptors (Trk-B) and increased the ability of BDNF to induce ERK1/2 phosphorylation. This IGF-I-induced increase in BDNF responsiveness describes a new interaction between these peptides in the brain. FAU - McCusker, Robert H AU - McCusker RH AD - 250 Edward R Madigan Laboratory, Urbana, IL 61801-3873, USA. rmccuske@uiuc.edu FAU - McCrea, Katherine AU - McCrea K FAU - Zunich, Samantha AU - Zunich S FAU - Dantzer, Robert AU - Dantzer R FAU - Broussard, Suzanne R AU - Broussard SR FAU - Johnson, Rodney W AU - Johnson RW FAU - Kelley, Keith W AU - Kelley KW LA - eng GR - AG 2004-35206-14144/AG/NIA NIH HHS/United States GR - AG023580/AG/NIA NIH HHS/United States GR - MH 51569/MH/NIMH NIH HHS/United States GR - MH71349/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20060804 PL - Netherlands TA - J Neuroimmunol JT - Journal of neuroimmunology JID - 8109498 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 3KX376GY7L (Glutamic Acid) RN - 67763-96-6 (Insulin-Like Growth Factor I) RN - EC 2.7.10.1 (Receptor, trkB) RN - EC 2.7.11.24 (Extracellular Signal-Regulated MAP Kinases) RN - SY7Q814VUP (Calcium) SB - IM MH - Animals MH - Blotting, Western MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Calcium/metabolism MH - Cerebral Cortex/*metabolism MH - Extracellular Signal-Regulated MAP Kinases/metabolism MH - Glutamic Acid/metabolism MH - Insulin-Like Growth Factor I/*metabolism MH - Intracellular Fluid/metabolism MH - Mice MH - Mice, Inbred BALB C MH - Neurons/*metabolism MH - Phosphorylation MH - Receptor, trkB/metabolism EDAT- 2006/08/08 09:00 MHDA- 2006/12/09 09:00 CRDT- 2006/08/08 09:00 PHST- 2006/04/24 00:00 [received] PHST- 2006/06/14 00:00 [revised] PHST- 2006/06/14 00:00 [accepted] PHST- 2006/08/08 09:00 [pubmed] PHST- 2006/12/09 09:00 [medline] PHST- 2006/08/08 09:00 [entrez] AID - S0165-5728(06)00228-1 [pii] AID - 10.1016/j.jneuroim.2006.06.014 [doi] PST - ppublish SO - J Neuroimmunol. 2006 Oct;179(1-2):186-90. doi: 10.1016/j.jneuroim.2006.06.014. Epub 2006 Aug 4.