PMID- 24753179 OWN - NLM STAT- MEDLINE DCOM- 20150102 LR - 20140513 IS - 1097-4547 (Electronic) IS - 0360-4012 (Linking) VI - 92 IP - 7 DP - 2014 Jul TI - Electrically induced brain-derived neurotrophic factor release from Schwann cells. PG - 893-903 LID - 10.1002/jnr.23365 [doi] AB - Regulating the production of brain-derived neurotrophic factor (BDNF) in Schwann cells (SCs) is critical for their application in traumatic nerve injury, neurodegenerative disorders, and demyelination disease in both central and peripheral nervous systems. The present study investigated the possibility of using electrical stimulation (ES) to activate SCs to release BDNF. We found that short-term ES was capable of promoting BDNF production from SCs, and the maximal BDNF release was achieved by ES at 6 V (3 Hz, 30 min). We further examined the involvement of intracellular calcium ions ([Ca2+]i) in the ES-induced BDNF production in SCs by pharmacological studies. We found that the ES-induced BDNF release required calcium influx through T-type voltage-gated calcium channel (VGCC) and calcium mobilization from internal calcium stores, including inositol triphosphate-sensitive stores and caffeine/ryanodine-sensitive stores. In addition, calcium-calmodulin dependent protein kinase IV (CaMK IV), mitogen-activated protein kinase (MAPK), and cAMP response element-binding protein (CREB) were found to play important roles in the ES-induced BDNF release from SCs. In conclusion, ES is capable of activating SCs to secrete BDNF, which requires the involvement of calcium influx through T-type VGCC and calcium mobilization from internal calcium stores. In addition, activation of CaMK IV, MAPK, and CREB were also involved in the ES-induced BDNF release. The findings indicate that ES can improve the neurotrophic ability in SCs and raise the possibility of developing electrically stimulated SCs as a source of cell therapy for nerve injury in both peripheral and central nervous systems. CI - Copyright (c) 2014 Wiley Periodicals, Inc. FAU - Luo, Beier AU - Luo B AD - Institute of Orthopaedics, Changhai Hospital, The Second Military Medical University, Shanghai, China. FAU - Huang, Jinghui AU - Huang J FAU - Lu, Lei AU - Lu L FAU - Hu, Xueyu AU - Hu X FAU - Luo, Zhuojing AU - Luo Z FAU - Li, Ming AU - Li M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140219 PL - United States TA - J Neurosci Res JT - Journal of neuroscience research JID - 7600111 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Enzyme Inhibitors) RN - 0 (RNA, Small Interfering) RN - 0 (S100 Proteins) RN - EC 2.3.1.48 (CREB-Binding Protein) RN - EC 2.7.11.17 (Calcium-Calmodulin-Dependent Protein Kinase Type 4) RN - M03GIQ7Z6P (Sincalide) RN - SY7Q814VUP (Calcium) SB - IM MH - Animals MH - Animals, Newborn MH - Brachial Plexus/cytology MH - Brain-Derived Neurotrophic Factor/*metabolism MH - CREB-Binding Protein/metabolism MH - Calcium/metabolism MH - Calcium-Calmodulin-Dependent Protein Kinase Type 4/metabolism MH - Cell Count MH - Cell Proliferation MH - Cell Survival MH - Cells, Cultured MH - Electric Stimulation/*methods MH - Enzyme Inhibitors/pharmacology MH - RNA, Small Interfering/pharmacology MH - Rats MH - Rats, Sprague-Dawley MH - S100 Proteins/metabolism MH - Schwann Cells/*metabolism MH - Sciatic Nerve/cytology MH - Sincalide/metabolism OTO - NOTNLM OT - brain-derived neurotrophic factor OT - calcium OT - calcium-calmodulin dependent protein kinase OT - electrical stimulation OT - mitogen-activated protein kinase EDAT- 2014/04/23 06:00 MHDA- 2015/01/03 06:00 CRDT- 2014/04/23 06:00 PHST- 2013/07/03 00:00 [received] PHST- 2013/12/18 00:00 [revised] PHST- 2013/12/27 00:00 [accepted] PHST- 2014/04/23 06:00 [entrez] PHST- 2014/04/23 06:00 [pubmed] PHST- 2015/01/03 06:00 [medline] AID - 10.1002/jnr.23365 [doi] PST - ppublish SO - J Neurosci Res. 2014 Jul;92(7):893-903. doi: 10.1002/jnr.23365. Epub 2014 Feb 19.