Anti-apoptotic signaling and failure of apoptosis in the ischemic rat hippocampus

Autor: Georg Johannes Müller, Hans Lassmann, Flemming Fryd Johansen
Jazyk: angličtina
Rok vydání: 2007
Předmět:
Zdroj: Neurobiology of Disease, Vol 25, Iss 3, Pp 582-593 (2007)
Druh dokumentu: article
ISSN: 1095-953X
DOI: 10.1016/j.nbd.2006.11.009
Popis: Several anti-apoptotic proteins are induced in CA1 neurons after transient forebrain ischemia (TFI), but fail to protect the majority of these cells from demise. Correlating cell death morphologies (apoptosis-like and necrosis-like death) with immunohistochemistry (IHC), we investigated whether anti-apoptosis contributes to survival, compromises apoptosis effector functions and/or delays death in CA1 neurons 1–7 days after TFI. As surrogate markers for bioenergetic failure, the IHC of respiratory chain complex (RCC) subunits was investigated. Dentate granule cell (DGC) apoptosis following colchicine injection severed as a reference for classical apoptosis. Heat shock protein 70 (Hsp70), neuronal apoptosis inhibitory protein (NAIP) and manganese superoxide dismutase (MnSOD) were upregulated in the majority of intact CA1 neurons paralleling the occurrence of CA1 neuronal death (days 3–7) as well as in a proportion of apoptosis-(
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