Assessment of Choroidal Vasculature and Innate Immune Cells in the Eyes of Albino and Pigmented Mice

The visualization of choroidal vasculature and innate immune cells in the eyes of pigmented mice has been challenging due to the presence of a retinal pigment epithelium (RPE) layer separating the choroid and retina. Here, we established methods for visualizing the choroidal macrophages, mast cells,...

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Main Authors: Ismail S. Zaitoun, Yong-Seok Song, Hammam B. Zaitoun, Christine M. Sorenson, Nader Sheibani
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/11/20/3329
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author Ismail S. Zaitoun
Yong-Seok Song
Hammam B. Zaitoun
Christine M. Sorenson
Nader Sheibani
author_facet Ismail S. Zaitoun
Yong-Seok Song
Hammam B. Zaitoun
Christine M. Sorenson
Nader Sheibani
author_sort Ismail S. Zaitoun
collection DOAJ
description The visualization of choroidal vasculature and innate immune cells in the eyes of pigmented mice has been challenging due to the presence of a retinal pigment epithelium (RPE) layer separating the choroid and retina. Here, we established methods for visualizing the choroidal macrophages, mast cells, and vasculature in eyes of albino and pigmented mice using cell type-specific staining. We were able to visualize the choroidal arterial and venous systems. An arterial circle around the optic nerve was found in mice similar to the Zinn–Haller arterial circle that exists in humans and primates. Three different structural patterns of choriocapillaris were observed throughout the whole choroid: honeycomb-like, maze-like, and finger-like patterns. Choroidal mast cells were relatively few but dense around the optic nerve. Mast cell distribution in the middle and periphery was different among strains. Macrophages were found in all layers of the choroid. Thus, utilizing the simple and reliable methods described herein will allow the evaluation of transgenic and preclinical mouse models of ocular diseases that affect the choroid, including age-related macular degeneration (AMD), diabetic choroidopathy, and retinopathy of prematurity. These studies will advance our understanding of the pathophysiology, and molecular and cellular mechanisms that can be targeted therapeutically, in these diseases.
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spelling doaj.art-a3d27e259e6b496d96a45a9540c124de2023-11-23T23:29:20ZengMDPI AGCells2073-44092022-10-011120332910.3390/cells11203329Assessment of Choroidal Vasculature and Innate Immune Cells in the Eyes of Albino and Pigmented MiceIsmail S. Zaitoun0Yong-Seok Song1Hammam B. Zaitoun2Christine M. Sorenson3Nader Sheibani4Department of Ophthalmology and Visual Sciences, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53705, USADepartment of Ophthalmology and Visual Sciences, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53705, USAFaculty of Medicine, Yarmouk University in Irbid, Irbid 21163, JordanMcPherson Eye Research Institute, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53705, USADepartment of Ophthalmology and Visual Sciences, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53705, USAThe visualization of choroidal vasculature and innate immune cells in the eyes of pigmented mice has been challenging due to the presence of a retinal pigment epithelium (RPE) layer separating the choroid and retina. Here, we established methods for visualizing the choroidal macrophages, mast cells, and vasculature in eyes of albino and pigmented mice using cell type-specific staining. We were able to visualize the choroidal arterial and venous systems. An arterial circle around the optic nerve was found in mice similar to the Zinn–Haller arterial circle that exists in humans and primates. Three different structural patterns of choriocapillaris were observed throughout the whole choroid: honeycomb-like, maze-like, and finger-like patterns. Choroidal mast cells were relatively few but dense around the optic nerve. Mast cell distribution in the middle and periphery was different among strains. Macrophages were found in all layers of the choroid. Thus, utilizing the simple and reliable methods described herein will allow the evaluation of transgenic and preclinical mouse models of ocular diseases that affect the choroid, including age-related macular degeneration (AMD), diabetic choroidopathy, and retinopathy of prematurity. These studies will advance our understanding of the pathophysiology, and molecular and cellular mechanisms that can be targeted therapeutically, in these diseases.https://www.mdpi.com/2073-4409/11/20/3329choriocapillarismast cellsmacrophagessmooth muscle cellsuveal diseasesage-related macular degeneration
spellingShingle Ismail S. Zaitoun
Yong-Seok Song
Hammam B. Zaitoun
Christine M. Sorenson
Nader Sheibani
Assessment of Choroidal Vasculature and Innate Immune Cells in the Eyes of Albino and Pigmented Mice
Cells
choriocapillaris
mast cells
macrophages
smooth muscle cells
uveal diseases
age-related macular degeneration
title Assessment of Choroidal Vasculature and Innate Immune Cells in the Eyes of Albino and Pigmented Mice
title_full Assessment of Choroidal Vasculature and Innate Immune Cells in the Eyes of Albino and Pigmented Mice
title_fullStr Assessment of Choroidal Vasculature and Innate Immune Cells in the Eyes of Albino and Pigmented Mice
title_full_unstemmed Assessment of Choroidal Vasculature and Innate Immune Cells in the Eyes of Albino and Pigmented Mice
title_short Assessment of Choroidal Vasculature and Innate Immune Cells in the Eyes of Albino and Pigmented Mice
title_sort assessment of choroidal vasculature and innate immune cells in the eyes of albino and pigmented mice
topic choriocapillaris
mast cells
macrophages
smooth muscle cells
uveal diseases
age-related macular degeneration
url https://www.mdpi.com/2073-4409/11/20/3329
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