First Author | Hanstein R | Year | 2008 |
Journal | Neuroscience | Volume | 156 |
Issue | 3 | Pages | 712-21 |
PubMed ID | 18708129 | Mgi Jnum | J:140968 |
Mgi Id | MGI:3814972 | Doi | 10.1016/j.neuroscience.2008.07.034 |
Citation | Hanstein R, et al. (2008) Transgenic overexpression of corticotropin releasing hormone provides partial protection against neurodegeneration in an in vivo model of acute excitotoxic stress. Neuroscience 156(3):712-21 |
abstractText | Corticotropin releasing hormone (CRH) is the central modulator of the mammalian hypothalamic-pituitary-adrenal (HPA) axis. In addition, CRH affects other processes in the brain including learning, memory, and synaptic plasticity. Moreover, CRH has been shown to play a role in nerve cell survival under apoptotic conditions and to serve as an endogenous neuroprotectant in vitro. Employing mice overexpressing murine CRH in the CNS, we observed a differential response of CRH-overexpressing mice (CRH-COEhom-Nes) to acute excitotoxic stress induced by kainate compared with controls (CRH-COEcon-Nes). Interestingly, CRH-overexpression reduced the duration of epileptic seizures and prevented kainate-induced neurodegeneration and neuroinflammation in the hippocampus. Our findings highlight a neuroprotective action of CRH in vivo. This neuroprotective effect was accompanied by increased levels of brain-derived neurotrophic factor (BDNF) in CRH-COEhom-Nes mice, suggesting a potential role for BDNF in mediating CRH-induced neuroprotective actions against acute excitotoxicity in vivo. |