ER Dysfunction and Protein Folding Stress in ALS
Medinas, Danilo B.
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CitationMatus, Soledad, Vicente Valenzuela, Danilo B. Medinas, and Claudio Hetz. 2013. “ER Dysfunction and Protein Folding Stress in ALS.” International Journal of Cell Biology 2013 (1): 674751. doi:10.1155/2013/674751. http://dx.doi.org/10.1155/2013/674751.
AbstractAmyotrophic lateral sclerosis (ALS) is the most frequent paralytic disease in adults. Most ALS cases are considered sporadic with no clear genetic component. The disruption of protein homeostasis due to chronic stress responses at the endoplasmic reticulum (ER) and the accumulation of abnormal protein inclusions are extensively described in ALS mouse models and patient-derived tissue. Recent studies using pharmacological and genetic manipulation of the unfolded protein response (UPR), an adaptive reaction against ER stress, have demonstrated a complex involvement of the pathway in experimental models of ALS. In addition, quantitative changes in ER stress-responsive chaperones in body fluids have been proposed as possible biomarkers to monitor the disease progression. Here we review most recent advances attributing a causal role of ER stress in ALS.
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