Abstract:
PURPOSE:Because of its role in cell cycle regulation and apoptosis, p53 may be involved in maintaining the post-mitotic state of the adult eye. To shed light on the role of p53 in retinal development and maintenance, this study investigated the pattern of expression of p53, its family members, and its regulators during the development of the mouse eye. METHODS:Relative quantitative real-time PCR (qRT-PCR) was used to determine the steady-state levels of target transcripts in RNA extracted from wild-type mouse whole eyes or retinas between embryonic day (E) 15 and post-natal day (P) 30. Immunoblotting was used to compare the steady-state levels of the protein to that of the transcript. RESULTS:Transcript and protein levels for p53 in the eye were highest at E17 and E18, respectively. However, both p53 transcript and protein levels dropped precipitously thereafter, and no protein was detected on immunoblots after P3. Expression patterns of p63, p73, Mdm2, Mdm4, and Yy1 did not follow that of p53. Immunohistochemistry analysis of the developing eye showed that both p53 and Mdm2 are abundantly expressed at E18 in all layers of the retinal neuroblast. CONCLUSIONS:Downregulation of p53 in the post-mitotic retina suggests that, although p53 may be involved in ocular and retinal development, it may play a minimal role in healthy adult retinal function.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Vuong L,Brobst DE,Saadi A,Ivanovic I,Al-Ubaidi MRdoi
10.1167/iovs.11-8681subject
Has Abstractpub_date
2012-07-20 00:00:00pages
4821-31issue
8eissn
0146-0404issn
1552-5783pii
iovs.11-8681journal_volume
53pub_type
杂志文章abstract:PURPOSE:To characterize retinal functional consequences of elevated intraocular pressure (IOP) in a rat model of experimental glaucoma. METHODS:Unilateral elevation of IOP was produced by hypertonic saline injection into an episcleral vein in 20 adult male Brown-Norway rats. IOP was measured in both eyes of awake anim...
journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.11-8131
更新日期:2011-11-25 00:00:00
abstract::Sodium iodate and sodium iodoacetate were employed as biological probes to evaluate component forces contributing to the strength of retinal adhesion to the retinal pigment epithelium (RPE). Iodate treatment produced a rapid reduction in the strength of adhesion, which was complete within 1 hr without evidence of conc...
journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章,多中心研究
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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更新日期:2011-12-09 00:00:00
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更新日期:2018-10-01 00:00:00
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更新日期:2005-06-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1998-12-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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doi:
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doi:
更新日期:1996-02-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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更新日期:2018-08-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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更新日期:2020-07-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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doi:
更新日期:2000-06-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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更新日期:2015-07-01 00:00:00
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更新日期:2017-01-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
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