TRPM2 channel deficiency prevents delayed cytosolic Zn2+ accumulation and CA1 pyramidal neuronal death after transient global ischemia
نویسندگان
چکیده
منابع مشابه
The PIDDosome mediates delayed death of hippocampal CA1 neurons after transient global cerebral ischemia in rats.
A brief period of global brain ischemia, such as that induced by cardiac arrest or cardiopulmonary bypass surgery, causes cell death in vulnerable hippocampal CA1 pyramidal neurons days after reperfusion. Although numerous factors have been suggested to account for this phenomenon, the mechanisms underlying it are poorly understood. We describe a cell death signal called the PIDDosome, a protei...
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BACKGROUND AND PURPOSE p53-upregulated modulator of apoptosis (PUMA), a BH3-only member of the Bcl-2 protein family, is required for p53-dependent and -independent forms of apoptosis. PUMA localizes to mitochondria and interacts with antiapoptotic Bcl-2 and Bcl-X(L) or proapoptotic Bax in response to death stimuli. Although studies have shown that PUMA is associated with pathomechanisms of cere...
متن کاملDelayed neuronal death in the CA1 pyramidal cell layer of the gerbil hippocampus following transient ischemia is apoptosis.
The CA1 pyramidal neurons in the hippocampus are selectively vulnerable to transient ischemic damage. In experimental animals, the CA1 pyramidal neurons undergo cell death several days after brief forebrain ischemia. It remains, however, unknown whether this delayed neuronal death is necrosis or apoptosis. To investigate the degenerating processes of the CA1 pyramidal neurons in gerbil hippocam...
متن کاملInvolvement of MMPs in delayed neuronal death after global ischemia.
Spatial and temporal relations between metalloproteinase (MMP-2 and MMP-9) activation and laminin degradation in gerbil hippocampus after transient cerebral ischemia has been studied. Activity of MMPs was determined by gelatin zymography in homogenates from dorsal (DP, an equivalent of CA1 sector) and abdominal (AbP, containing CA2-4 and gyrus dentatus) parts of hippocampus. A significant activ...
متن کاملDiversity and fluctuation of spine morphology in CA1 pyramidal neurons after transient global ischemia.
Dendritic spines form postsynaptic components of excitatory synapses in CA1 pyramidal neurons and play a key role in excitatory signal transmission. Transient global ischemia is thought to induce excitotoxicity that triggers delayed neuronal death in the CA1 region. However, the mechanism underlying structural changes of excitatory synapses after ischemia is not completely understood. Here, we ...
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ژورنال
عنوان ژورنال: Cell Death & Disease
سال: 2014
ISSN: 2041-4889
DOI: 10.1038/cddis.2014.494