PMID- 20603607 OWN - NLM STAT- MEDLINE DCOM- 20111123 LR - 20211203 IS - 1551-4005 (Electronic) IS - 1538-4101 (Print) IS - 1551-4005 (Linking) VI - 9 IP - 12 DP - 2010 Jun 15 TI - Regulation of cell death and epileptogenesis by the mammalian target of rapamycin (mTOR): a double-edged sword? PG - 2281-5 AB - Identification of cell signaling mechanisms mediating seizure-related neuronal death and epileptogenesis is important for developing more effective therapies for epilepsy. The mammalian target of rapamycin (mTOR) pathway has recently been implicated in regulating neuronal death and epileptogenesis in rodent models of epilepsy. In particular, kainate-induced status epilepticus causes abnormal activation of the mTOR pathway, and the mTOR inhibitor, rapamycin, can decrease the development of neuronal death and chronic seizures in the kainate model. Here, we discuss the significance of these findings and extend them further by identifying upstream signaling pathways through which kainate status epilepticus activates the mTOR pathway and by demonstrating limited situations where rapamycin may paradoxically increase mTOR activation and worsen neuronal death in the kainate model. Thus, the regulation of seizure-induced neuronal death and epileptogenesis by mTOR is complex and may have dual, opposing effects depending on the physiological and pathological context. Overall, these findings have important implications for designing potential neuroprotective and antiepileptogenic therapies that modulate the mTOR pathway. FAU - Zeng, Ling-Hui AU - Zeng LH AD - Department of Pharmacy, Zhejiang University City College, Hangzhou, Zhejiang, China. FAU - McDaniel, Sharon AU - McDaniel S FAU - Rensing, Nicholas R AU - Rensing NR FAU - Wong, Michael AU - Wong M LA - eng GR - K02 NS045583/NS/NINDS NIH HHS/United States GR - R01 NS056872/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20100615 PL - United States TA - Cell Cycle JT - Cell cycle (Georgetown, Tex.) JID - 101137841 RN - 0 (Neuroprotective Agents) RN - 0 (Receptors, Kainic Acid) RN - EC 2.7.1.137 (Phosphatidylinositol 3-Kinase) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Animals MH - Cell Death/drug effects MH - Epilepsy/*metabolism/pathology MH - Mice MH - Neurons/metabolism/pathology MH - Neuroprotective Agents/pharmacology MH - Phosphatidylinositol 3-Kinase/metabolism MH - Proto-Oncogene Proteins c-akt/metabolism MH - Rats MH - Receptors, Kainic Acid/metabolism MH - Signal Transduction/drug effects MH - Status Epilepticus/metabolism MH - TOR Serine-Threonine Kinases/*metabolism PMC - PMC3934644 MID - NIHMS544521 EDAT- 2010/07/07 06:00 MHDA- 2011/12/13 00:00 PMCR- 2014/02/25 CRDT- 2010/07/07 06:00 PHST- 2010/07/07 06:00 [entrez] PHST- 2010/07/07 06:00 [pubmed] PHST- 2011/12/13 00:00 [medline] PHST- 2014/02/25 00:00 [pmc-release] AID - 11866 [pii] AID - 10.4161/cc.9.12.11866 [doi] PST - ppublish SO - Cell Cycle. 2010 Jun 15;9(12):2281-5. doi: 10.4161/cc.9.12.11866. Epub 2010 Jun 15.