PMID- 29867712 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 1664-2295 (Print) IS - 1664-2295 (Electronic) IS - 1664-2295 (Linking) VI - 9 DP - 2018 TI - High-Frequency Repetitive Magnetic Stimulation Enhances the Expression of Brain-Derived Neurotrophic Factor Through Activation of Ca(2+)-Calmodulin-Dependent Protein Kinase II-cAMP-Response Element-Binding Protein Pathway. PG - 285 LID - 10.3389/fneur.2018.00285 [doi] LID - 285 AB - Repetitive transcranial magnetic stimulation (rTMS) can be used in various neurological disorders. However, neurobiological mechanism of rTMS is not well known. Therefore, in this study, we examined the global gene expression patterns depending on different frequencies of repetitive magnetic stimulation (rMS) in both undifferentiated and differentiated Neuro-2a cells to generate a comprehensive view of the biological mechanisms. The Neuro-2a cells were randomly divided into three groups-the sham (no active stimulation) group, the low-frequency (0.5 Hz stimulation) group, and high-frequency (10 Hz stimulation) group-and were stimulated 10 min for 3 days. The low- and high-frequency groups of rMS on Neuro-2a cells were characterized by transcriptome array. Differentially expressed genes were analyzed using the Database of Annotation Visualization and Integrated Discovery program, which yielded a Kyoto Encyclopedia of Genes and Genomes pathway. Amphetamine addiction pathway, circadian entrainment pathway, long-term potentiation (LTP) pathway, neurotrophin signaling pathway, prolactin signaling pathway, and cholinergic synapse pathway were significantly enriched in high-frequency group compared with low-frequency group. Among these pathways, LTP pathway is relevant to rMS, thus the genes that were involved in LTP pathway were validated by quantitative real-time polymerase chain reaction and western blotting. The expression of glutamate ionotropic receptor N-methyl d-aspartate 1, calmodulin-dependent protein kinase II (CaMKII) delta, and CaMKIIalpha was increased, and the expression of CaMKIIgamma was decreased in high-frequency group. These genes can activate the calcium (Ca(2+))-CaMKII-cAMP-response element-binding protein (CREB) pathway. Furthermore, high-frequency rMS induced phosphorylation of CREB, brain-derived neurotrophic factor (BDNF) transcription via activation of Ca(2+)-CaMKII-CREB pathway. In conclusion, high-frequency rMS enhances the expression of BDNF by activating Ca(2+)-CaMKII-CREB pathway in the Neuro-2a cells. These findings may help clarify further therapeutic mechanisms of rTMS. FAU - Baek, Ahreum AU - Baek A AD - Department of Rehabilitation Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea. AD - Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, South Korea. FAU - Park, Eun Jee AU - Park EJ AD - Department of Rehabilitation Medicine, The Graduate School Yonsei University Wonju College of Medicine, Wonju, South Korea. FAU - Kim, Soo Yeon AU - Kim SY AD - Department of Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea. FAU - Nam, Bae-Geun AU - Nam BG AD - Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, South Korea. AD - Graduate Program of NanoScience and Technology, Yonsei University, Seoul, South Korea. FAU - Kim, Ji Hyun AU - Kim JH AD - Department of Rehabilitation Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea. FAU - Jun, Sang Woo AU - Jun SW AD - Department of Biomedical Clinical Engineering, Yonsei University Wonju College of Medicine, Wonju, South Korea. FAU - Kim, Sung Hoon AU - Kim SH AD - Department of Rehabilitation Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea. FAU - Cho, Sung-Rae AU - Cho SR AD - Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, South Korea. AD - Graduate Program of NanoScience and Technology, Yonsei University, Seoul, South Korea. AD - Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul, South Korea. AD - Yonsei Stem Cell Center, Avison Biomedical Research Center, Yonsei University College of Medicine, Seoul, South Korea. AD - Rehabilitation Institute of Neuromuscular Disease, Yonsei University College of Medicine, Seoul, South Korea. LA - eng PT - Journal Article DEP - 20180507 PL - Switzerland TA - Front Neurol JT - Frontiers in neurology JID - 101546899 PMC - PMC5949612 OTO - NOTNLM OT - Ca2+-calmodulin-dependent protein kinase II-cAMP-response element-binding protein pathway OT - Neuro-2a cells OT - brain-derived neurotrophic factor OT - high-frequency OT - low-frequency OT - repetitive magnetic stimulation EDAT- 2018/06/06 06:00 MHDA- 2018/06/06 06:01 PMCR- 2018/05/07 CRDT- 2018/06/06 06:00 PHST- 2017/10/08 00:00 [received] PHST- 2018/04/12 00:00 [accepted] PHST- 2018/06/06 06:00 [entrez] PHST- 2018/06/06 06:00 [pubmed] PHST- 2018/06/06 06:01 [medline] PHST- 2018/05/07 00:00 [pmc-release] AID - 10.3389/fneur.2018.00285 [doi] PST - epublish SO - Front Neurol. 2018 May 7;9:285. doi: 10.3389/fneur.2018.00285. eCollection 2018.