Journal
TRENDS IN MOLECULAR MEDICINE
Volume 18, Issue 5, Pages 273-282Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.molmed.2012.03.005
Keywords
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Funding
- [NEI EY015834]
- [NEI EY016525]
- [NIGMS 17980]
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The transparency of the eye lens depends on maintaining the native tertiary structures and solubility of the lens crystallin proteins over a lifetime. Cataract, the leading cause of blindness worldwide, is caused by protein aggregation within the protected lens environment. With age, covalent protein damage accumulates through pathways thought to include UV radiation, oxidation, deamidation, and truncations. Experiments suggest that the resulting protein destabilization leads to partially unfolded, aggregation-prone intermediates and the formation of insoluble, light-scattering protein aggregates. These aggregates either include or overwhelm the protein chaperone content of the lens. Here, we review the causes of cataract and nonsurgical methods being investigated to inhibit or delay cataract development, including natural product-based therapies, modulators of oxidation, and protein aggregation inhibitors.
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