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Biological principals and clinical potentials of limbal epithelial stem cells

机译:角膜缘上皮干细胞的生物学原理和临床潜力

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In this review, we describe a population of adult stem cells that are currently being successfully used in the clinic to treat blinding ocular surface disease, namely limbal epithelial stem cells (LESC). The function and characteristics of LESC and the challenges faced in making use of their therapeutic potential will be examined. The cornea on the front surface of the eye provides our window on the world. The consistency and functionality of the outer-most corneal epithelium is essential for vision. A population of LESC are responsible for replenishing the epithelium throughout life by providing a constant supply of daughter cells that replace those constantly removed from the ocular surface during normal wear and tear and following injury. LESC deficiency results in corneal inflammation, opacification, vascularisation and severe discomfort. The transplantation of cultured LESC is one of only a few examples of the successful use of adult stem cell therapy in patients. The clinical precedence for the use of stem cell therapy and the ready accessibility of a transparent stem cell niche make the cornea a unique model for the study of adult stem cells in health and disease.
机译:在这篇综述中,我们描述了成年干细胞群体,这些成体干细胞当前已在临床上成功用于治疗致盲性眼表疾病,即角膜缘上皮干细胞(LESC)。 LESC的功能和特性以及在利用其治疗潜力方面面临的挑战将得到检验。眼睛正面的角膜为我们提供了通往世界的窗口。最外面的角膜上皮的一致性和功能对于视觉至关重要。 LESC群体负责通过提供恒定供应的子代细胞来补充整个生命中的上皮细胞,这些子代细胞替代正常磨损和受伤后从眼表不断去除的子代细胞。 LESC缺乏会导致角膜发炎,浑浊,血管形成和严重不适。培养的LESC的移植是在患者中成功使用成人干细胞疗法的少数几个例子之一。使用干细胞疗法的临床先例以及透明干细胞小生境的现成可及性使角膜成为研究健康和疾病中成年干细胞的独特模型。

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