尽管现代白内障手术技术不断发展完善,但后囊膜混浊(PCO)仍然是白内障术后导致视功能再次下降的常见远期并发症。既往研究表明,PCO的发生与前囊膜和赤道部的晶状体上皮细胞增生、迁移、上皮-间充质转化(EMT)以及肌成纤维细胞的纤维化密切相关。在机制研究方面,近期研究集中于细胞因子,尤其是各类生长因子在上述病理过程中的作用。血管内皮生长因子(VEGF)是一种能够促进血管内皮细胞增生、迁移、细胞外基质变性、血管生成的生长因子。此外,越来越多的证据表明VEGF是纤维化、炎症、神经保护等方面的重要细胞因子;近年来发现VEGF可以直接或与转化生长因子-β2协同促进PCO形成。本文从VEGF的功能及其与EMT的关系切入,就VEGF在眼组织中的作用及其在促进PCO形成中的作用机制进行综述。
Despite the continuous improvement and development of modern cataract surgery technology, posterior capsule opacification (PCO) is still the common long-term complication causing secondary visual acuity decline after cataract surgery.Previous studies have shown that the occurrence of PCO is closely related to the proliferation, migration, epithelial-mesenchymal transition (EMT) and myofibroblast fibrosis of lens epithelial cells in the anterior capsule and lens equator.In terms of pathogenesis, recent research focuses on the role of cytokines, especially various growth factors.Vascular endothelial growth factor (VEGF) is a kind of growth factor that can promote vascular endothelial cell proliferation and migration, extracellular matrix degeneration and angiogenesis.In addition, there is increasing evidence showing that VEGF plays an important role in fibrosis, inflammation, neuroprotection and other aspects.In recent years, VEGF has been found to promote PCO formation directly or cooperatively with transforming growth factor-β2.Based on the function of VEGF and the relationship between VEGF and EMT, this paper mainly reviewed the advances in the role of VEGF in the eye and the pathogenesis of posterior capsule opacification.
闫慧超,鲍永珍. 血管内皮生长因子促后囊膜混浊形成机制研究进展[J]. 中华实验眼科杂志,2023,41(06):592-597.
DOI:10.3760/cma.j.cn115989-20200315-00168版权归中华医学会所有。
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