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泪腺功能康复的研究进展。

Advances in Functional Restoration of the Lacrimal Glands.

机构信息

Department of Ophthalmology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.

Regulatory Biology Laboratory, Salk Institute for Biological Studies, La Jolla, California, United States.

出版信息

Invest Ophthalmol Vis Sci. 2018 Nov 1;59(14):DES174-DES182. doi: 10.1167/iovs.17-23528.

Abstract

The lacrimal glands produce tears to support a healthy homeostatic environment on the ocular surface. The lacrimal gland dysfunction characteristic of dry eye disease causes ocular discomfort and visual disturbances and in severe cases can result in a loss of vision. The demand for adequate restoration of lacrimal gland function has been intensified due to advances in stem cell biology, developmental biology, and bioengineering technologies. In addition to conventional therapies, including artificial tears, tear alternatives (such as autologous serum eye drops) and salivary gland transplantation, a regenerative medicine approach has been identified as a novel strategy to restore the function of the lacrimal gland. Recent studies have demonstrated the potential of progenitor cell injection therapy to repair the tissue of the lacrimal glands. A current three-dimensional (3D) tissue engineering technique has been shown to regenerate a secretory gland structure by reproducing reciprocal epithelial-mesenchymal interactions during ontogenesis in vitro and in vivo. A novel direct reprogramming method has suggested a possibility to induce markers in the lacrimal gland developmental process from human pluripotent stem cells. The development of this method is supported by advances in our understanding of gene expression and regulatory networks involved in the development and differentiation of the lacrimal glands. Engineering science has proposed a medical device to stimulate tearing and a bio-hybrid scaffold to reconstruct the 3D lacrimal gland structure. In this review, we will summarize recent bioengineering advances in lacrimal gland regeneration toward the functional restoration of the lacrimal glands as a future dry eye therapy.

摘要

泪腺产生泪液以维持眼表面的健康稳态环境。干眼症的泪腺功能障碍导致眼部不适和视觉障碍,在严重的情况下会导致视力丧失。由于干细胞生物学、发育生物学和生物工程技术的进步,对充分恢复泪腺功能的需求日益增加。除了包括人工泪液在内的传统疗法、泪液替代品(如自体血清滴眼液)和唾液腺移植外,再生医学方法已被确定为恢复泪腺功能的一种新策略。最近的研究表明,祖细胞注射疗法有可能修复泪腺组织。目前的三维(3D)组织工程技术已被证明可以通过在体外和体内复制发生过程中的上皮-间充质相互作用来再生分泌腺结构。一种新的直接重编程方法表明,有可能从人多能干细胞中诱导出泪腺发育过程中的标记物。该方法的发展得到了我们对参与泪腺发育和分化的基因表达和调控网络的理解的进步的支持。工程科学提出了一种用于刺激流泪的医疗设备和一种用于重建 3D 泪腺结构的生物杂交支架。在这篇综述中,我们将总结泪腺再生的最新生物工程进展,以期为干眼症的未来治疗提供泪腺的功能恢复。

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