PMID- 25424467 OWN - NLM STAT- MEDLINE DCOM- 20160307 LR - 20201209 IS - 1756-0500 (Electronic) IS - 1756-0500 (Linking) VI - 7 DP - 2014 Nov 25 TI - Subtoxic levels of hydrogen peroxide induce brain-derived neurotrophic factor expression to protect PC12 cells. PG - 840 LID - 10.1186/1756-0500-7-840 [doi] LID - 840 AB - BACKGROUND: Oxidative stress is one of the mechanisms underlying pathogenesis in neurodegenerative diseases such as Alzheimer's disease. Generally, oxidative stress represents cell toxicity; however, we recently found that oxidative stress promotes the expression of growth factor progranulin (PGRN) in HT22 murine hippocampus cells, thereby protecting the HT22 cells. In this study, we attempted to clarify whether a similar system exists in the other neuronal cell model, rat pheochromocytoma (PC12) cells. RESULTS: After confirming that high concentrations of hydrogen peroxide (H2O2; 100-250 muM) initiate PC12 cell death, we analyzed growth factor expressional changes after H2O2 treatment. We found, intriguingly, that gene expression of brain-derived neurotrophic factor (BDNF), but not PGRN was significantly induced by H2O2. Although little expression of the high affinity BDNF receptor tropomyosin-related kinase TrkB was observed in PC12 cells, expression of low affinity neurotrophin receptor, p75NTR, was clearly observed. This BDNF signaling appeared to contribute to PC12 cell protection, since PC12 cell death was significantly attenuated by BDNF treatment. CONCLUSIONS: Based on our results, we conclude that the induction of BDNF by subtoxic levels of H2O2 and its signaling may have roles in PC12 cell protection. FAU - Ogura, Yurina AU - Ogura Y FAU - Sato, Kazunori AU - Sato K FAU - Kawashima, Ken-Ichi AU - Kawashima K FAU - Kobayashi, Nanako AU - Kobayashi N FAU - Imura, Sei AU - Imura S FAU - Fujino, Kotaro AU - Fujino K FAU - Kawaguchi, Hideo AU - Kawaguchi H FAU - Nedachi, Taku AU - Nedachi T AD - Department of Life Sciences, Graduate School of Life Sciences, Toyo University, 1-1-1 Izumino, Itakura-machi, Oura-gun, Gunma 374-0193, Japan. nedachi@toyo.jp. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141125 PL - England TA - BMC Res Notes JT - BMC research notes JID - 101462768 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Grn protein, rat) RN - 0 (Intercellular Signaling Peptides and Proteins) RN - 0 (Nerve Tissue Proteins) RN - 0 (Progranulins) RN - 0 (Receptors, Growth Factor) RN - 0 (Receptors, Nerve Growth Factor) RN - 136958-07-1 (Ngfr protein, rat) RN - BBX060AN9V (Hydrogen Peroxide) RN - EC 2.7.10.1 (Receptor, trkB) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor/agonists/*genetics/metabolism/pharmacology MH - Cell Death/drug effects MH - Dose-Response Relationship, Drug MH - *Gene Expression Regulation MH - Hydrogen Peroxide/*pharmacology MH - Intercellular Signaling Peptides and Proteins/genetics/metabolism MH - Nerve Tissue Proteins MH - Oxidative Stress MH - PC12 Cells MH - Progranulins MH - Rats MH - Receptor, trkB/genetics/metabolism MH - Receptors, Growth Factor MH - Receptors, Nerve Growth Factor/genetics/metabolism MH - Signal Transduction PMC - PMC4256810 EDAT- 2014/11/27 06:00 MHDA- 2016/03/08 06:00 PMCR- 2014/11/25 CRDT- 2014/11/27 06:00 PHST- 2014/07/08 00:00 [received] PHST- 2014/11/18 00:00 [accepted] PHST- 2014/11/27 06:00 [entrez] PHST- 2014/11/27 06:00 [pubmed] PHST- 2016/03/08 06:00 [medline] PHST- 2014/11/25 00:00 [pmc-release] AID - 1756-0500-7-840 [pii] AID - 3364 [pii] AID - 10.1186/1756-0500-7-840 [doi] PST - epublish SO - BMC Res Notes. 2014 Nov 25;7:840. doi: 10.1186/1756-0500-7-840.