Abstract | PURPOSE: The goal of present study was to elucidate the pathophysiological roles of lysosomal phospholipase A2 (LPLA2) in intraocular pressure (IOP) levels and ocular inflammation. METHODS: RESULTS: The LPLA2-deficient mice showed higher IOP levels than the wild-type mice until 2 months of age (P = 1.60E-06); in older mice there was no difference between the two groups. Significant differences in the IOP changes between groups in young mice were seen after administration of 0.5% timolol (P < 0.05). Upon induction of EIU by LPS, compared with wild-type mice (P < 0.05), IOPs were significantly elevated in LPLA2-deficient mice at maximum levels of the ocular inflammation (48 h). Immunohistochemical analysis indicated that LPLA2-deficient mice showed more prolonged expression of GFAP at the inner plexiform layer and inner nuclear layer by EIU than that found in the wild-type mice (P < 0.05). CONCLUSIONS: These results confirm that LPLA2 plays a significant role in the control of IOP during mouse ocular development or with ocular inflammation by facilitating the digestion of intraocular insoluble materials.
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Authors | Kanako Sawada, Miki Hiraoka, Akira Abe, Robert Kelly, James A Shayman, Hiroshi Ohguro |
Journal | Current eye research
(Curr Eye Res)
Vol. 42
Issue 4
Pg. 611-616
(04 2017)
ISSN: 1460-2202 [Electronic] England |
PMID | 27612621
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Antihypertensive Agents
- Glial Fibrillary Acidic Protein
- Lipopolysaccharides
- Ophthalmic Solutions
- glial fibrillary astrocytic protein, mouse
- Phospholipases A2
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Topics |
- Animals
- Antihypertensive Agents
(pharmacology)
- Disease Models, Animal
- Enzyme-Linked Immunosorbent Assay
- Glial Fibrillary Acidic Protein
(metabolism)
- Inflammation
(chemically induced, enzymology)
- Intraocular Pressure
(drug effects, physiology)
- Lipopolysaccharides
(toxicity)
- Lysosomes
(enzymology)
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Ophthalmic Solutions
- Phospholipases A2
(deficiency, physiology)
- Retina
(metabolism)
- Uveitis
(chemically induced, enzymology)
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