PMID- 26208700 OWN - NLM STAT- MEDLINE DCOM- 20180115 LR - 20220624 IS - 1559-1182 (Electronic) IS - 0893-7648 (Linking) VI - 53 IP - 6 DP - 2016 Aug TI - Nuclear Factor-kappaB-Dependent Sestrin2 Induction Mediates the Antioxidant Effects of BDNF Against Mitochondrial Inhibition in Rat Cortical Neurons. PG - 4126-4142 LID - 10.1007/s12035-015-9357-1 [doi] AB - Brain-derived neurotrophic factor (BDNF), in addition to its neurotrophic action, also possesses antioxidant activities. However, the underlying mechanisms remain to be fully defined. Sestrin2 is a stress-responsive gene implicated in the cellular defense against oxidative stress. Currently, the potential functions of sestrin2 in nervous system, in particular its correlation with neurotrophic factors, have not been well established. In this study, we hypothesized that BDNF may enhance sestrin2 expression to confer neuronal resistance against oxidative stress induced by 3-nitropropionic acid (3-NP), an irreversible mitochondrial complex II inhibitor, and characterized the molecular mechanisms underlying BDNF induction of sestrin2 in primary rat cortical cultures. We found that BDNF-mediated sestrin2 expression in cortical neurons required formation of nitric oxide (NO) with subsequent production of 3',5'-cyclic guanosine monophosphate (cGMP) and activation of cGMP-dependent protein kinase (PKG). BDNF induced localization of nuclear factor-kappaB (NF-kappaB) subunits p65 and p50 into neuronal nuclei that required PKG activities. Interestingly, BDNF exposure led to formation of a protein complex containing at least PKG-1 and p65/p50, which bound to sestrin2 promoter with resultant upregulation of its protein products. Finally, BDNF preconditioning mitigated production of reactive oxygen species (ROS) as a result of 3-NP exposure; this antioxidative effect of BDNF was dependent upon PKG activity, NF-kappaB, and sestrin2. Taken together, our results indicated that BDNF enhances sestrin2 expression to confer neuronal resistance against oxidative stress induced by 3-NP through attenuation of ROS formation; furthermore, BDNF induction of sestrin2 requires activation of a pathway involving NO/PKG/NF-kappaB. FAU - Wu, Chia-Lin AU - Wu CL AD - Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan. AD - Institute of Brain Science and Brain Research Center, National Yang-Ming University, Taipei, Taiwan. FAU - Chen, Shang-Der AU - Chen SD AD - Department of Neurology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan. AD - Center for Translational Research in Biomedical Sciences, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan. FAU - Yin, Jiu-Haw AU - Yin JH AD - Department of Neurology, Cheng Hsin General Hospital, Taipei, Taiwan. AD - Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan. FAU - Hwang, Chi-Shin AU - Hwang CS AD - Department of Neurology, Taipei City Hospital, Taipei, Taiwan. AD - Department of Medicine, National Yang-Ming University, Taipei, Taiwan. FAU - Yang, Ding-I AU - Yang DI AD - Institute of Brain Science and Brain Research Center, National Yang-Ming University, Taipei, Taiwan. diyang@ym.edu.tw. AD - Institute of Brain Science, National Yang-Ming University, Number 155, Section 2, Linong Street, Beitou District, Taipei, 11221, Taiwan. diyang@ym.edu.tw. LA - eng PT - Journal Article DEP - 20150726 PL - United States TA - Mol Neurobiol JT - Molecular neurobiology JID - 8900963 RN - 0 (Antioxidants) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (NF-kappa B) RN - 0 (Nitro Compounds) RN - 0 (Nuclear Proteins) RN - 0 (Propionates) RN - 0 (Reactive Oxygen Species) RN - 0 (Sesn2 protein, rat) RN - 0 (Transcription Factors) RN - 31C4KY9ESH (Nitric Oxide) RN - EC 2.7.11.12 (Cyclic GMP-Dependent Protein Kinases) RN - H2D2X058MU (Cyclic GMP) RN - QY4L0FOX0D (3-nitropropionic acid) SB - IM MH - Animals MH - Antioxidants/*physiology MH - Brain-Derived Neurotrophic Factor/*pharmacology MH - Cell Nucleus/drug effects/metabolism MH - Cerebral Cortex/*cytology MH - Cyclic GMP/metabolism MH - Cyclic GMP-Dependent Protein Kinases/metabolism MH - Mitochondria/drug effects/*metabolism MH - NF-kappa B/*metabolism MH - Neurons/drug effects/*metabolism MH - Neuroprotection/drug effects MH - Nitric Oxide/metabolism MH - Nitro Compounds MH - Nuclear Proteins/genetics/*metabolism MH - Promoter Regions, Genetic/genetics MH - Propionates MH - Rats, Sprague-Dawley MH - Reactive Oxygen Species/metabolism MH - Transcription Factors/metabolism OTO - NOTNLM OT - 3-Nitropropionic acid OT - Free radicals OT - Nitric oxide OT - Reactive oxygen species OT - Soluble guanylate cyclase OT - cGMP-dependent protein kinase EDAT- 2015/07/26 06:00 MHDA- 2018/01/16 06:00 CRDT- 2015/07/26 06:00 PHST- 2015/04/15 00:00 [received] PHST- 2015/07/13 00:00 [accepted] PHST- 2015/07/26 06:00 [entrez] PHST- 2015/07/26 06:00 [pubmed] PHST- 2018/01/16 06:00 [medline] AID - 10.1007/s12035-015-9357-1 [pii] AID - 10.1007/s12035-015-9357-1 [doi] PST - ppublish SO - Mol Neurobiol. 2016 Aug;53(6):4126-4142. doi: 10.1007/s12035-015-9357-1. Epub 2015 Jul 26.