Immune Checkpoints Contribute Corneal Immune Privilege: Implications for Dry Eye Associated with Checkpoint Inhibitors

The eye is provided with immune protection against pathogens in a manner that greatly reduces the threat of inflammation-induced vision loss. Immune-mediated inflammation and allograft rejection are greatly reduced in the eye, a phenomenon called ‘immune privilege’. Corneal tissue has inherent immun...

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Main Authors: Junko Hori, Tomoyuki Kunishige, Yuji Nakano
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/21/11/3962
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spelling doaj-1203dbb7df1c43bfb39063bfb0958a2c2020-11-25T03:06:12ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-05-01213962396210.3390/ijms21113962Immune Checkpoints Contribute Corneal Immune Privilege: Implications for Dry Eye Associated with Checkpoint InhibitorsJunko Hori0Tomoyuki Kunishige1Yuji Nakano2Department of Ophthalmology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, JapanDepartment of Ophthalmology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, JapanDepartment of Ophthalmology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, JapanThe eye is provided with immune protection against pathogens in a manner that greatly reduces the threat of inflammation-induced vision loss. Immune-mediated inflammation and allograft rejection are greatly reduced in the eye, a phenomenon called ‘immune privilege’. Corneal tissue has inherent immune privilege properties with underlying three mechanisms: (1) anatomical, cellular, and molecular barriers in the cornea; (2) an immunosuppressive microenvironment; and (3) tolerance related to regulatory T cells and anterior chamber-associated immune deviation. This review describes the molecular mechanisms of the immunosuppressive microenvironment and regulatory T cells in the cornea that have been elucidated from animal models of ocular inflammation, especially those involving corneal transplantation, it also provides an update on immune checkpoint molecules in corneal and systemic immune regulation, and its relevance for dry eye associated with checkpoint inhibitor therapy.https://www.mdpi.com/1422-0067/21/11/3962immune privilegeimmune checkpointsimmune-related adverse eventsanterior chamber-associated immune deviationregulatory T cellscorneal transplantation
collection DOAJ
language English
format Article
sources DOAJ
author Junko Hori
Tomoyuki Kunishige
Yuji Nakano
spellingShingle Junko Hori
Tomoyuki Kunishige
Yuji Nakano
Immune Checkpoints Contribute Corneal Immune Privilege: Implications for Dry Eye Associated with Checkpoint Inhibitors
International Journal of Molecular Sciences
immune privilege
immune checkpoints
immune-related adverse events
anterior chamber-associated immune deviation
regulatory T cells
corneal transplantation
author_facet Junko Hori
Tomoyuki Kunishige
Yuji Nakano
author_sort Junko Hori
title Immune Checkpoints Contribute Corneal Immune Privilege: Implications for Dry Eye Associated with Checkpoint Inhibitors
title_short Immune Checkpoints Contribute Corneal Immune Privilege: Implications for Dry Eye Associated with Checkpoint Inhibitors
title_full Immune Checkpoints Contribute Corneal Immune Privilege: Implications for Dry Eye Associated with Checkpoint Inhibitors
title_fullStr Immune Checkpoints Contribute Corneal Immune Privilege: Implications for Dry Eye Associated with Checkpoint Inhibitors
title_full_unstemmed Immune Checkpoints Contribute Corneal Immune Privilege: Implications for Dry Eye Associated with Checkpoint Inhibitors
title_sort immune checkpoints contribute corneal immune privilege: implications for dry eye associated with checkpoint inhibitors
publisher MDPI AG
series International Journal of Molecular Sciences
issn 1661-6596
1422-0067
publishDate 2020-05-01
description The eye is provided with immune protection against pathogens in a manner that greatly reduces the threat of inflammation-induced vision loss. Immune-mediated inflammation and allograft rejection are greatly reduced in the eye, a phenomenon called ‘immune privilege’. Corneal tissue has inherent immune privilege properties with underlying three mechanisms: (1) anatomical, cellular, and molecular barriers in the cornea; (2) an immunosuppressive microenvironment; and (3) tolerance related to regulatory T cells and anterior chamber-associated immune deviation. This review describes the molecular mechanisms of the immunosuppressive microenvironment and regulatory T cells in the cornea that have been elucidated from animal models of ocular inflammation, especially those involving corneal transplantation, it also provides an update on immune checkpoint molecules in corneal and systemic immune regulation, and its relevance for dry eye associated with checkpoint inhibitor therapy.
topic immune privilege
immune checkpoints
immune-related adverse events
anterior chamber-associated immune deviation
regulatory T cells
corneal transplantation
url https://www.mdpi.com/1422-0067/21/11/3962
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AT tomoyukikunishige immunecheckpointscontributecornealimmuneprivilegeimplicationsfordryeyeassociatedwithcheckpointinhibitors
AT yujinakano immunecheckpointscontributecornealimmuneprivilegeimplicationsfordryeyeassociatedwithcheckpointinhibitors
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