PMID- 22402332 OWN - NLM STAT- MEDLINE DCOM- 20130124 LR - 20151119 IS - 1095-953X (Electronic) IS - 0969-9961 (Linking) VI - 46 IP - 2 DP - 2012 May TI - c-Jun-dependent sulfiredoxin induction mediates BDNF protection against mitochondrial inhibition in rat cortical neurons. PG - 450-62 LID - 10.1016/j.nbd.2012.02.010 [doi] AB - In current study, we tested the hypothesis that c-Jun-dependent sulfiredoxin expression mediates protective effects of brain-derived neurotrophic factor (BDNF) against neurotoxicity induced by 3-nitropropionic acid (3-NP), a mitochondrial complex II inhibitor, in primary rat cortical cultures. We found that BDNF-dependent c-Jun expression and nuclear translocation required prior phosphorylation of extracellular signal-regulated kinase (ERK)1/2, but not Akt. BDNF also transiently activated the expression of sulfiredoxin, an ATP-dependent antioxidant enzyme, at both mRNA and protein levels. Furthermore, both c-Jun siRNA and ERK1/2 inhibitor PD98059 suppressed BDNF-induced sulfiredoxin expression. Finally, PD98059, c-Jun siRNA, and sulfiredoxin siRNA all abrogated BDNF-mediated 3-NP resistance. Together, these results established a signaling cascade of "BDNF --> ERK1/2-Pi --> c-Jun --> sulfiredoxin --> 3-NP resistance". We therefore conclude that c-Jun-induced sulfiredoxin mediates the BDNF-dependent neuroprotective effects against 3-NP toxicity in primary rat cortical neurons, at least in part. CI - Copyright (c) 2012 Elsevier Inc. All rights reserved. FAU - Wu, Chia-Lin AU - Wu CL AD - Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan. FAU - Yin, Jiu-Haw AU - Yin JH FAU - Hwang, Chi-Shin AU - Hwang CS FAU - Chen, Shang-Der AU - Chen SD FAU - Yang, Ding-Yah AU - Yang DY FAU - Yang, Ding-I AU - Yang DI LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120303 PL - United States TA - Neurobiol Dis JT - Neurobiology of disease JID - 9500169 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neuroprotective Agents) RN - 0 (Nitro Compounds) RN - 0 (Propionates) RN - EC 1.8.- (Oxidoreductases Acting on Sulfur Group Donors) RN - EC 1.8.- (Srxn1 protein, rat) RN - EC 2.7.11.24 (JNK Mitogen-Activated Protein Kinases) RN - QY4L0FOX0D (3-nitropropionic acid) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor/*physiology MH - Cells, Cultured MH - Cerebral Cortex/cytology/drug effects/enzymology MH - Enzyme Induction/physiology MH - JNK Mitogen-Activated Protein Kinases/*physiology MH - Mitochondria/*enzymology MH - Neural Inhibition/drug effects/*physiology MH - Neurons/drug effects/*enzymology MH - Neuroprotective Agents/pharmacology MH - Nitro Compounds/antagonists & inhibitors/toxicity MH - Oxidoreductases Acting on Sulfur Group Donors/*biosynthesis/physiology MH - Propionates/antagonists & inhibitors/toxicity MH - Rats MH - Rats, Sprague-Dawley EDAT- 2012/03/10 06:00 MHDA- 2013/01/25 06:00 CRDT- 2012/03/10 06:00 PHST- 2011/10/28 00:00 [received] PHST- 2012/01/20 00:00 [revised] PHST- 2012/02/20 00:00 [accepted] PHST- 2012/03/10 06:00 [entrez] PHST- 2012/03/10 06:00 [pubmed] PHST- 2013/01/25 06:00 [medline] AID - S0969-9961(12)00065-4 [pii] AID - 10.1016/j.nbd.2012.02.010 [doi] PST - ppublish SO - Neurobiol Dis. 2012 May;46(2):450-62. doi: 10.1016/j.nbd.2012.02.010. Epub 2012 Mar 3.