Protein Degradation Pathways after Brain Ischemia

Title: Protein Degradation Pathways after Brain Ischemia

Volume: 13 Issue: 2

Author(s): Pengfei Ge, Fan Zhang, Jingwei Zhao, Chunli Liu, Liankun Sun and Bingren Hu

Affiliation:

Keywords: ubiquitin, microtubule-associated protein 1 light chain 3 (LC3), delayed neuronal death, autophagy, autophagosome, lysosome, protein aggregation, protein folding, organelle damage, global ischemia, focal ischemia

Abstract: There are two major routes for clearance of aberrant cellular components: (i) the ubiquitin-proteasomal system (UPS); and (ii) the autophagy pathway. The UPS degrades individual abnormal proteins, whereas the autophagy pathway is the chief route for bulk degradation of large abnormal protein aggregates and aberrant organelles. Impairments of the protein degradation pathways are closely tied with many human diseases. Brain ischemia leads to protein misfolding and aggregation, resulting in overproduction of protein aggregate-associated organelles. Brain ischemia also damages protein degradation pathways. This chapter will discuss molecular mechanisms underlying the impairments of the UPS and autophagy pathways and how such impairments lead to multiple organelle failure and delayed neuronal death after brain ischemia.

Cite this article as:

Ge Pengfei, Zhang Fan, Zhao Jingwei, Liu Chunli, Sun Liankun and Hu Bingren, Protein Degradation Pathways after Brain Ischemia, Current Drug Targets 2012; 13 (2) . https://dx.doi.org/10.2174/138945012799201694