Abstract:
PURPOSE:Endothelial cells of different vascular systems may express site-specific adhesion molecules to attract leukocyte subsets. This study describes a method to visualize and compare leukocyte-endothelial interactions in three vascular beds within the same eye in mice. METHODS:Digital in vivo fluorescence microscopy was used to record a trans-corneal iris view, a superficial limbus view, and a trans-scleral anterior choroid view of mouse tissue. Uveitis was induced by intravitreal injection of E. coli endotoxin into BALB/c mice. Leukocytes were labeled systemically with SYTO-16 or rhodamine 6G. Leukocyte rolling and sticking were quantified at baseline and 4, 6, and 24 hours after endotoxin injection. RESULTS:In a normal animal, the limbus had 18 times the number of rolling leukocytes and 6 times the number of sticking leukocytes relative to the iris. All three vascular beds were affected by intravitreal injection of endotoxin. Although they each showed increased numbers of rolling and sticking cells, the levels and kinetics of these increases differed. Rolling peaked at 6 hours in the iris (34-fold increase from baseline) and limbus (7-fold increase) but was maximal in the choroid earlier with a 16-fold increase. Sticking was maximal at 4 hours for iris (96-fold increase) and choroid (19-fold increase) but peaked in the limbus at 6 hours (47-fold increase from baseline). CONCLUSIONS:This study demonstrates that leukocyte-endothelial dynamics are not the same in different vascular beds in the normal mouse eye. Furthermore, site-specific differences in responses to intravitreally injected endotoxin, beyond what can be readily explained by differential distribution of endotoxin, were observed. The methodology can be used to test the hypothesis that endothelial cells within the eye have site-specific patterns of adhesion molecule expression.
journal_name
Curr Eye Resjournal_title
Current eye researchauthors
Rosenbaum JT,Brischetto M,Crespo S,Bierwirth M,Oveson K,Planck SR,Becker MDdoi
10.1076/ceyr.24.3.214.8303subject
Has Abstractpub_date
2002-03-01 00:00:00pages
214-8issue
3eissn
0271-3683issn
1460-2202journal_volume
24pub_type
杂志文章abstract:PURPOSE:Considerable evidence suggests that both axial and peripheral refraction play important roles in eye growth control. The large variability in peripheral refraction seen in adults and children indicates that the peripheral retina is exposed to a wide range of refractive errors. The current lack of appropriate me...
journal_title:Current eye research
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abstract:PURPOSE:The high prevalence of positive family history of keratoconus (KC) in KC patients is well-known. However, the results regarding the association between family history of KC and disease severity are controversial. The aim of this study was to evaluate the possible association between family history and severity ...
journal_title:Current eye research
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journal_title:Current eye research
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journal_title:Current eye research
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journal_title:Current eye research
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doi:10.1080/02713683.2018.1545911
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journal_title:Current eye research
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journal_title:Current eye research
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pub_type: 杂志文章,随机对照试验
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更新日期:2018-03-01 00:00:00
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journal_title:Current eye research
pub_type: 杂志文章
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更新日期:2001-07-01 00:00:00
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