Neuroprotectin D1 Attenuates Laser-induced Choroidal Neovascularization in Mouse
| العنوان: | Neuroprotectin D1 Attenuates Laser-induced Choroidal Neovascularization in Mouse |
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| المؤلفون: | Kristopher Sheets, Yongdong Zhou, Ertel, Monica K., Knott, Eric J., Regan, Cornelius E., Elison, Jasmine R., Gordon, William C., Per Gjorstrup, Bazan, Nicolas G. |
| المصدر: | Molecular Vision Dimensions |
| بيانات النشر: | Molecular Vision, 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Male, Microscopy, Confocal, Docosahexaenoic Acids, Fundus Oculi, Lasers, Endothelial Cells, Choroidal Neovascularization, Retina, Mice, Inbred C57BL, Mice, Animals, Fluorescein, Fluorescein Angiography, Research Article, Cell Proliferation, Cell Size |
| الوصف: | Purpose To examine the effects of neuroprotectin D1 (NPD1), a stereospecific derivative of docosahexaenoic acid, on choroidal neovascularization (CNV) in a laser-induced mouse model. Specifically, this was assessed by clinically grading laser-induced lesions, measuring leakage area, and volumetrically quantifying vascular endothelial cell proliferation. Methods C57Bl/6 mice were treated with vehicle control or NPD1, and choroidal neovascularization was induced by laser rupture of Bruch's membrane; treatment was administered throughout the first week of recovery. One and two weeks after CNV induction, fundus fluorescein angiography was performed. Angiograms were clinically graded to assess leakage severity, while leakage area was measured by image analysis of angiograms. Proliferation of vascular endothelial cells was evaluated volumetrically by three-dimensional laser confocal immunofluorescent microscopy of cytoskeletal, nuclear, and endothelial cell markers. Results At seven days after CNV induction, NPD1-treated mice had 60% fewer clinically relevant lesions than controls, dropping to 80% fewer by 14 days. NPD1 mice exhibited 25% smaller leakage area than controls at 7 days and 44% smaller area at 14 days. Volumetric immunofluorescence revealed 46% less vascular endothelial cell volume in 7-day NPD1-treated mice than in 7-day controls, and by 14 days NPD1 treatment was 68% lower than controls. Furthermore, comparison of 7- and 14-day volumes of NPD1-treated mice revealed a 50% reduction at 14 days. Conclusions NPD1 significantly inhibits choroidal neovascularization. There are at least two possible mechanisms that could explain the neuroprotective action of NPD1. Ultimately, nuclear factor-κB could be inhibited with a reduction in cyclooxygenase-2 (COX-2) to reduce vascular endothelial growth factor (VEGF) expression, and/or activation of the resolution phase of the inflammatory response/survival pathways could be upregulated. Moreover, NPD1 continues to be effective after treatment is concluded, suggesting sustained protection and highlighting the potential applicability of this lipid mediator in preventing or ameliorating endothelial cell growth in pathoangiogenesis. |
| اللغة: | English |
| تدمد: | 1090-0535 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::931e8e5f519ac49804b44f6d6fff6231Test http://europepmc.org/articles/PMC2834569Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.pmid.dedup....931e8e5f519ac49804b44f6d6fff6231 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10900535 |
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