Dagkalis, Athanasios and Wallace, Carol and Xu, Heping and Liebau, Sebastian and Manivannan, Ayyakkannu and Stone, Michael A. and Mack, Matthias and Liversidge, Janet and Crane, Isabel J. (2009) Development of Experimental Autoimmune Uveitis: Efficient Recruitment of Monocytes Is Independent of CCR2. INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 50 (9). pp. 4288-4294. ISSN 0146-0404, 1552-5783
Full text not available from this repository. (Request a copy)Abstract
PURPOSE. Macrophages are major contributors to the damage occurring in the retina in experimental autoimmune uveitis (EAU). CCR2 may be needed for efficient recruitment of monocytes to an inflammatory site, and the aim of this study was to determine whether this was the case in EAU. METHODS. EAU was induced and graded in C57BL/6J and CCR2(-/-) mice. Macrophage infiltration and CCR2 expression were assessed using immunohistochemistry. Retinas were examined for MCP-1 expression using RT-PCR. Rolling and infiltration of labeled bone marrow monocytes at the inflamed retinal vasculature were examined by scanning laser ophthalmoscopy and confocal microscopy, respectively. Effect of CCR2 deletion or blockade by antibody and antagonist was determined. RESULTS. Expression of mRNA for MCP-1 increased as EAU developed and was localized to the retina. CCR2 was associated with infiltrating macrophages. However, EAU induced in CCR2(-/-) mice was not reduced in severity, and neither was the percentage of macrophages in the retina. CCR2(-/-) monocytes, 48 hours after adoptive transfer to mice with EAU, showed no significant difference in percentage rolling or infiltration into the retina compared to WT. CCR2-independent rolling of monocytes was confirmed by CCR2 neutralizing antibody and antagonist treatment. CONCLUSIONS. CCR2 does not have a primary role in the recruitment of monocytes to the inflammatory site across the blood-retina barrier in well-developed EAU. Therapeutics targeting CCR2 are unlikely to be of value in treating human posterior uveitis. (Invest Ophthalmol Vis Sci. 2009;50:4288-4294) DOI: 10.1167/iovs.09-3434
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | IN-VIVO; INFLAMMATORY MEDIATORS; LEUKOCYTE TRAFFICKING; BLOOD MONOCYTES; CCR2(-/-) MICE; BONE-MARROW; CHEMOKINE; UVEORETINITIS; RECEPTOR; CELLS; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Innere Medizin II |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Sep 2020 14:28 |
| Last Modified: | 08 Sep 2020 14:28 |
| URI: | https://pred.uni-regensburg.de/id/eprint/28481 |
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