The Neuronal Stress Response: Nuclear Translocation of Heat Shock Proteins as an Indicator of Hyperthermic Stress

Heat shock proteins and the cellular response to osmotic stress.

In antidiuresis, the intrarenal distribution of HSP25/27, alphaB-crystallin, HSP72, OSP94 and HSP110 corresponds to the osmotic gradient between cortex and papilla: low amounts in the cortex and high values in the inner medulla and papilla. In addition, medullary HSP72 levels change appropriately with the diuretic state. Studies on MDCK cells suggest that, in the renal medulla in vivo, stressor...

Heat shock protein expression in vulnerable cells of the rat hippocampus as an indicator of excitation-induced neuronal stress.

The inducible 72 kDa heat shock protein (HSP72) has been shown to be protective in non-neuronal cells and neurons in culture, but its function and the control of its expression in the CNS are poorly understood. Although HSP72 is induced in neurons in vivo by neurotoxic compounds that produce seizures and neuronal damage, it is unknown if its expression is a specific response to excitation per s...

Heat shock response relieves ER stress.

Accumulation of misfolded protein in the endoplasmic reticulum (ER) causes stress. The unfolded protein response (UPR), a transcriptional induction pathway, is activated to relieve ER stress. Although UPR is not essential for viability, UPR-deficient cells are more sensitive to ER stress; ire1Delta cells cannot grow when challenged with tunicamycin or by overexpression of misfolded CPY(*). In t...

Localization of the heat-shock protein Hsp70 to the synapse following hyperthermic stress in the brain.

Heat-shock proteins are induced in response to cellular stress. Although heat-shock proteins are known to function in repair and protective mechanisms, their relationship to critical neural processes, such as synaptic function, has received little attention. Here we investigate whether the major heat-shock protein Hsp70 localizes to the synapse following a physiologically relevant increase in t...

Translocation and Release Peroxide)-Induced HMGB1 Cytoplasmic Regulator of Oxidative Stress (Hydrogen Nuclear Heat Shock Protein 72 as a Negative