The Effects of Transient Retinal Detachment on Cavity Size and Glial and Neural Remodeling in a Mouse Model of X-Linked Retinoschisis
| Autor: | Geoffrey P. Lewis, Steven K. Fisher, Sten Kjellstrom, Jiyun Byun, Gabriel Luna, Mark R. Verardo, Paul A. Sieving |
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| Rok vydání: | 2009 |
| Předmět: |
Male
medicine.medical_specialty Opsin Retinoschisis Cell Count Biology Article Photoreceptor cell Mice chemistry.chemical_compound Neurofilament Proteins Ophthalmology Glial Fibrillary Acidic Protein medicine Animals Eye Proteins Fluorescent Antibody Technique Indirect Mice Knockout Neurons Retina Microscopy Confocal Opsins Retinal Detachment Retinal detachment Retinal Anatomy medicine.disease Mice Inbred C57BL Disease Models Animal medicine.anatomical_structure chemistry Gliosis Female sense organs medicine.symptom RETINOSCHISIN Neuroglia Photoreceptor Cells Vertebrate |
| Zdroj: | Investigative Opthalmology & Visual Science. 50:3977 |
| ISSN: | 1552-5783 |
| DOI: | 10.1167/iovs.08-2910 |
| Popis: | PURPOSE. To determine the cellular consequences of retinal detachment in retinoschisin knockout (Rs1-KO) mice, a model for retinoschisin in humans. METHODS. Experimental retinal detachments (RDs) were induced in the right eyes of both Rs1-KO and wild-type (wt) control mice. Immunocytochemistry was performed on retinal tissue at 1, 7, or 28 days after RD with antibodies to anti-GFAP, -neurofilament, and -rod opsin to examine cellular changes after detachment. Images of the immunostained tissue were captured by laser scanning confocal microscopy. Quantitative analysis was performed to measure the number of Hoechststained photoreceptor nuclei and their density, number, and size of inner retinal cavities, as well as the number of subretinal glial scars. RESULTS. Since detachments were created with balanced salt solution, by examination, all retinas had spontaneously reattached by 1 day. Cellular responses common to many photoreceptor degenerations occurred in the nondetached retinas of Rs1-KO mice, and, of importance, RD did not appear to significantly accentuate these responses. The number of schisis cavities was not changed after detachment, but their size was reduced. CONCLUSIONS. These data indicate that large short-term RD in Rs1-KO mice, followed by a period of reattachment may cause a slight increase in photoreceptor cell death, but detachments do not accentuate the gliosis and neurite sprouting already present and may in fact reduce the size of existing retinal cavities. This finding suggests that performing subretinal injections to deliver therapeutic agents may be a viable option in the treatment of patients with retinoschisis without causing significant cellular damage to the retina. (Invest Ophthalmol Vis Sci. 2009;50:3977-3984) DOI: 10.1167/iovs.08-2910 (Less) |
| Databáze: | OpenAIRE |
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