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The role of calcium-activated protease calpain in experimental retinal pathology.


ABSTRACT: The purpose of this review is to present the recent evidence linking the family of ubiquitous proteases called calpains (EC 3.4.22.17) to neuropathologies of the retina. The hypothesis being tested in such studies is that over-activation of calpains by elevated intracellular calcium contributes to retinal cell death produced by conditions such as elevated intraocular pressure and hypoxia. Recent x-ray diffraction studies have provided insight into the molecular events causing calpain activation. Further, x-ray diffraction data has provided details on how side chains on calpain inhibitors affect docking into the active site of calpain 1. This opens the possibility of testing calpain-specific inhibitors, such as SJA6017 and SNJ1945, for human safety and as a site-directed form of treatment for retinal pathologies.

SUBMITTER: Azuma M 

PROVIDER: S-EPMC2426920 | biostudies-literature | 2008 Mar-Apr

REPOSITORIES: biostudies-literature

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The role of calcium-activated protease calpain in experimental retinal pathology.

Azuma M M   Shearer T R TR  

Survey of ophthalmology 20080301 2


The purpose of this review is to present the recent evidence linking the family of ubiquitous proteases called calpains (EC 3.4.22.17) to neuropathologies of the retina. The hypothesis being tested in such studies is that over-activation of calpains by elevated intracellular calcium contributes to retinal cell death produced by conditions such as elevated intraocular pressure and hypoxia. Recent x-ray diffraction studies have provided insight into the molecular events causing calpain activation.  ...[more]

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