PMID- 26950456 OWN - NLM STAT- MEDLINE DCOM- 20161213 LR - 20161230 IS - 1165-158X (Electronic) IS - 0145-5680 (Linking) VI - 62 IP - 2 DP - 2016 Feb 29 TI - Effects of c-Jun N-terminal kinase on Activin A/Smads signaling in PC12 cell suffered from oxygen-glucose deprivation. PG - 81-6 AB - Activin A (Act A), a member of transforming growth factor-beta (TGF-beta) superfamily, is an early gene in response to cerebral ischemia. Growing evidences confirm the neuroprotective effect of Act A in ischemic injury through Act A/Smads signal activation. In this process, regulation networks are involved in modulating the outcomes of Smads signaling. Among these regulators, crosstalk between c-Jun N-terminal kinase (JNK) and Smads signaling has been found in the TGF-beta induced epithelial-mesenchymal transition. However, in neural ischemia, the speculative regulation between JNK and Act A/Smads signaling pathways has not been clarified. To explore this issue, an Oxygen Glucose Deprivation (OGD) model was introduced to nerve-like PC12 cells. We found that JNK signal activation occurred at the early time of OGD injury (1 h). Act A administration suppressed JNK phosphorylation. In addition, JNK inhibition could elevate the strength of Smads signaling and attenuate neural apoptosis after OGD injury. Our results indicated a negative regulation effect of JNK on Smads signaling in ischemic injury. Taken together, JNK, as a critical site for neural apoptosis and negative regulator for Act A/Smads signaling, was presumed to be a molecular therapeutic target for ischemia. FAU - Wang, J Q AU - Wang JQ AD - Jilin University Department of Neurology, China-Japan Union Hospital Changchun China. FAU - Xu, Z H AU - Xu ZH AD - Jilin University Clinical Medicine of Norman Bethune Medical Department Changchun China. FAU - Liang, W Z AU - Liang WZ AD - Jilin University Department of Neurology, China-Japan Union Hospital Changchun China. FAU - He, J T AU - He JT AD - Jilin University Department of Neurology, China-Japan Union Hospital Changchun China. FAU - Cui, Y AU - Cui Y AD - Jilin University Department of Neurology, China-Japan Union Hospital Changchun China. FAU - Liu, H Y AU - Liu HY AD - Jilin University Department of Neurology, China-Japan Union Hospital Changchun China. FAU - Xue, L X AU - Xue LX AD - Jilin University Department of Neurology, China-Japan Union Hospital Changchun China. FAU - Shi, W AU - Shi W AD - Jilin University Key Laboratory for Molecular Enzymology & Engineering, The Ministry of Education Changchun China. FAU - Shao, Y K AU - Shao YK AD - Jilin University Department of Neurology, China-Japan Union Hospital Changchun China. FAU - Mang, J AU - Mang J AD - Jilin University Department of Neurology, China-Japan Union Hospital Changchun China mangjing@jlu.edu.cn. FAU - Xu, Z X AU - Xu ZX AD - Jilin University Department of Neurology, China-Japan Union Hospital Changchun China xuzhongxin999@aliyun.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160229 PL - France TA - Cell Mol Biol (Noisy-le-grand) JT - Cellular and molecular biology (Noisy-le-Grand, France) JID - 9216789 RN - 0 (Anthracenes) RN - 0 (Smad Proteins) RN - 0 (Transforming Growth Factor beta) RN - 0 (activin A) RN - 104625-48-1 (Activins) RN - 1TW30Y2766 (pyrazolanthrone) RN - 9061-61-4 (Nerve Growth Factor) RN - EC 2.7.11.24 (JNK Mitogen-Activated Protein Kinases) RN - IY9XDZ35W2 (Glucose) RN - S88TT14065 (Oxygen) SB - IM MH - Activins/*pharmacology MH - Animals MH - Anthracenes/pharmacology MH - Blotting, Western MH - Cell Differentiation/drug effects MH - *Cell Hypoxia MH - Cell Survival/drug effects MH - Epithelial-Mesenchymal Transition/drug effects MH - Glucose/*pharmacology MH - JNK Mitogen-Activated Protein Kinases/antagonists & inhibitors/*metabolism MH - Microscopy, Fluorescence MH - Nerve Growth Factor/pharmacology MH - Oxygen/*metabolism MH - PC12 Cells MH - Phosphorylation/drug effects MH - Rats MH - Signal Transduction/*drug effects MH - Smad Proteins/metabolism MH - Transforming Growth Factor beta/pharmacology EDAT- 2016/03/08 06:00 MHDA- 2016/12/15 06:00 CRDT- 2016/03/08 06:00 PHST- 2015/11/13 00:00 [received] PHST- 2016/02/26 00:00 [accepted] PHST- 2016/03/08 06:00 [entrez] PHST- 2016/03/08 06:00 [pubmed] PHST- 2016/12/15 06:00 [medline] PST - epublish SO - Cell Mol Biol (Noisy-le-grand). 2016 Feb 29;62(2):81-6.