眼免疫特惠与眼黑色素瘤:平行宇宙还是免疫剽窃?

Ocular immune privilege and ocular melanoma: parallel universes or immunological plagiarism?

机构信息

Department of Ophthalmology, University of Texas Southwestern Medical Center Dallas, TX, USA.

出版信息

Front Immunol. 2012 Jun 13;3:148. doi: 10.3389/fimmu.2012.00148. eCollection 2012.

Abstract

Evidence of immune privilege in the eye was recorded almost 140 years ago, yet interest in immune privilege languished for almost a century. However, the past 35 years have witnessed a plethora of research and a rekindled interest in the mechanisms responsible for immune privilege in the anterior chamber of the eye. This research has demonstrated that multiple anatomical, structural, physiological, and immunoregulatory processes contribute to immune privilege and remind us of the enormous complexity of this phenomenon. It is widely accepted that immune privilege is an adaptation for reducing the risk of immune-mediated inflammation in organs such as the eye and brain whose tissues have a limited capacity to regenerate. Recent findings suggest that immune privilege also occurs in sites where stem cells reside and raise the possibility that immune privilege is also designed to prevent the unwitting elimination of stem cells by immune-mediated inflammation at these sites. Uveal melanoma arises within the eye and as such, benefits from ocular immune privilege. A significant body of research reveals an intriguing parallel between the mechanisms that contribute to immune privilege in the eye and those strategies used by uveal melanoma cells to evade immune elimination once they have disseminated from the eye and establish metastatic foci in the liver. Uveal melanoma metastases seem to have "plagiarized" the blueprints used for ocular immune privilege to create "ad hoc immune privileged sites" in the liver.

摘要

早在 140 年前就有记录表明眼睛存在免疫特权,然而,人们对免疫特权的兴趣在近一个世纪里都较为低迷。然而,在过去的 35 年里,人们对眼球前房内负责免疫特权的机制进行了大量的研究,重新燃起了人们的兴趣。这些研究表明,多种解剖学、结构学、生理学和免疫调节过程有助于实现免疫特权,并提醒我们注意到这种现象的巨大复杂性。人们普遍认为,免疫特权是一种适应机制,可以降低眼部和脑部等组织再生能力有限的器官发生免疫介导性炎症的风险。最近的发现表明,免疫特权也存在于干细胞所在的部位,并提出了这样一种可能性,即免疫特权的目的也是为了防止这些部位的免疫介导性炎症无意中消除干细胞。葡萄膜黑色素瘤发生在眼睛内,因此受益于眼部免疫特权。大量研究揭示了一个有趣的平行现象,即有助于眼睛实现免疫特权的机制,与葡萄膜黑色素瘤细胞在从眼睛扩散并在肝脏建立转移灶后逃避免疫清除的策略之间存在关联。葡萄膜黑色素瘤的转移似乎“剽窃”了眼部免疫特权所使用的蓝图,在肝脏中创建了“临时免疫特权部位”。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e50c/3374415/9c642c3d0837/fimmu-03-00148-g001.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索