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Lacrimal Proline Rich 4 (LPRR4) Protein in the Tear Fluid Is a Potential Biomarker of Dry Eye Syndrome

机译:泪液中的泪液脯氨酸丰富4(LPRR4)蛋白是干眼症的潜在生物标志物。

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摘要

Dry eye syndrome (DES) is a complex, multifactorial, immune-associated disorder of the tear and ocular surface. DES with a high prevalence world over needs identification of potential biomarkers so as to understand not only the disease mechanism but also to identify drug targets. In this study we looked for differentially expressed proteins in tear samples of DES to arrive at characteristic biomarkers. As part of a prospective case-control study, tear specimen were collected using Schirmer strips from 129 dry eye cases and 73 age matched controls. 2D electrophoresis (2DE) and Differential gel electrophoresis (DIGE) was done to identify differentially expressed proteins. One of the differentially expressed protein in DES is lacrimal proline rich 4 protein (LPRR4). LPRR4 protein expression was quantified by enzyme immune sorbent assay (ELISA). LPRR4 was down regulated significantly in all types of dry eye cases, correlating with the disease severity as measured by clinical investigations. Further characterization of the protein is required to assess its therapeutic potential in DES.
机译:干眼症候群(DES)是一种复杂的,多因素的,与免疫有关的眼泪和眼表疾病。在世界范围内具有较高流行率的DES需要识别潜在的生物标记物,以便不仅了解疾病机理,还可以识别药物靶标。在这项研究中,我们寻找了DES眼泪样品中差异表达的蛋白质,以得出特征性生物标记。作为一项前瞻性病例对照研究的一部分,使用Schirmer试纸条从129个干眼病例和73个年龄相匹配的对照中收集了泪液标本。进行了2D电泳(2DE)和差异凝胶电泳(DIGE)以鉴定差异表达的蛋白质。 DES中差异表达的蛋白质之一是富含泪液的脯氨酸4蛋白(LPRR4)。 LPRR4蛋白表达通过酶免疫吸附测定(ELISA)进行定量。在所有类型的干眼症病例中,LPRR4均显着下调,这与通过临床研究测得的疾病严重程度有关。需要对该蛋白质进行进一步表征,以评估其在DES中的治疗潜力。

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