Abstract
Background/aimsPseudoexfoliation syndrome (PEX) is characterised by the production and accumulation of extracellular fibrillar material in the anterior segment of the eye. The pathogenesis of PEX is multifactorial with genetic factors and ageing as contributing factors. Previously, an increased concentration of beta-crystalline B2 (CRYBB2) was observed in the aqueous humour (AH) in eyes with PEX in a pooled material. Here, the protein content was examined on individual basis.MethodsDuring cataract surgery, AH was sampled from patients with and without PEX, 10 eyes in each group. The proteins were digested and labelled with isotopomeric dimethyl labels, separated with high-pressure liquid chromatography and analysed in an Orbitrap mass analyzer.ResultsThe concentration of complement factor 3, kininogen-1, antithrombin III and vitamin D-binding protein was increased in all eyes with PEX. Retinol-binding protein 3, glutathione peroxidase, calsyntenin-1 and carboxypeptidase E were decreased in eyes with PEX. Beta-crystalline B1 and CRYBB2 and gamma-crystalline D were up to eightfold upregulated in 4 of 10 in eyes with PEX.Conclusion The results indicate that oxidative stress and inflammation are contributing factors in the formation of PEX. Knowledge about the proteome in PEX is relevant for understanding this condition.
Subject
Cellular and Molecular Neuroscience,Sensory Systems,Ophthalmology
Reference25 articles.
1. Pseudoexfoliation as a risk factor for prevalent open-angle glaucoma
2. Pseudoexfoliation and the cataract surgeon: preoperative, intraoperative, and postoperative issues related to intraocular pressure, cataract, and intraocular lenses;Shingleton;J Cataract Refract Surg,2009
3. Thorleifsson G , Magnusson KP , Sulem P , et al . Common sequence variants in the, 2006: 17982.
4. Antioxidant status in the aqueous humour of patients with glaucoma associated with exfoliation syndrome
5. Proteins in aqueous humor from cataract patients with and without Pseudoexfoliationsyndrome;Taube;Eur J Mass Spectrom,2012
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