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Inflammatory cytokines regulate secretion of VEGF and chemokines by human conjunctival fibroblasts: Role in dysfunctional tear syndrome

机译:炎性细胞因子调节人结膜成纤维细胞分泌的VEGF和趋化因子:在功能性泪液综合征中的作用

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摘要

Ocular surface inflammation is one of the primary mechanisms associated with dysfunctional tear syndrome (DTS), also known as dry eye disease. DTS, more prevalent in older populations, causes ocular discomfort and visual disturbance due to dryness on the surface layer in the eye. We used human conjunctival fibroblast cultures (HCJVF) to investigate the effects of inflammatory cytokines IFN-gamma, TNF-alpha and IL-1 beta (ITI) on the secretions of VEGF and chemokines. Our results demonstrate the elevated secretion of angiogenic VEGF molecules by ITI without affecting anti-angiogenic molecules, PEDF, endostatin, thrombospondin and sVEGF-R1. The secretion of interferon-gamma inducible chemokines, CXCL9, -10, -11 by HCJVF were significantly enhanced by ITI. Our in vitro study supports previously reported observations of elevated VEGF and chemokines in tear fluids of DTS patients, reiterating the role of inflammatory reactions in DTS. Published by Elsevier Ltd.
机译:眼表炎症是与功能障碍性泪液综合征(DTS)相关的主要机制之一,DTS也称为干眼病。 DTS在老年人口中更为普遍,由于眼睛表层的干燥而引起眼部不适和视觉障碍。我们使用人结膜成纤维细胞培养物(HCJVF)来研究炎症细胞因子IFN-γ,TNF-α和IL-1 beta(ITI)对VEGF和趋化因子分泌的影响。我们的研究结果表明,ITI可增加血管生成性VEGF分子的分泌,而不会影响抗血管生成性分子,PEDF,内皮抑素,血小板反应蛋白和sVEGF-R1。 ITI显着增强了HCJVF分泌的干扰素-γ诱导型趋化因子CXCL9,-10,-11。我们的体外研究支持先前报道的DTS患者泪液中VEGF和趋化因子升高的观察,重申了炎症反应在DTS中的作用。由Elsevier Ltd.发布

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