Study of hypoxia-induced expression of HIF-1α in retina pigment epithelium

被引:5
作者
Yapjun, Zeng [1 ]
Guangyu, Li
Bin, Fan
Qing, Wang
Ying, Jie
Aizhen, Liu
机构
[1] Univ Technol Beijing, Biomech & Med Informat, Beijing, Peoples R China
[2] Hosp Jilin Univ 2, Dept Ophthalmol, Changchun, Peoples R China
[3] Hong Kong Polytech Univ, Rehabil Engn Ctr, Hong Kong, Hong Kong, Peoples R China
[4] Beijing Tongren Eye Ctr, Dept Opt, Beijing, Peoples R China
基金
中国国家自然科学基金;
关键词
choriodal neovascularization; HIF-1; alpha; hypoxia; retinal pigment epithelium;
D O I
10.1007/s10517-007-0101-3
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
It was shown that the expression of HIF-1 alpha in retinal pigment epithelium increased under hypoxic conditions. Eight hours after the start of hypoxic exposure, the expression of HIF-1 alpha reached the peak and sustained after 24-hour hypoxia. However, the morphology of PRE cells began to change and the expression of HIF-1 alpha decreased after long-term (48-hour) hypoxia. Hypoxia-induced increase in the level of HIF-1 alpha in RPE. It can be an important step in choriodal neovascularization.
引用
收藏
页码:323 / 327
页数:5
相关论文
共 6 条
[1]   Effects of hypoxia on retinal pigmented epithelium cells:: Protection by antioxidants [J].
Castillo, M ;
Bellot, JL ;
García-Cabanes, C ;
Miquel, J ;
Orts, A ;
Palmero, M .
OPHTHALMIC RESEARCH, 2002, 34 (06) :338-342
[2]   Regulation of hypoxia-inducible factor 1α is mediated by an O2-dependent degradation domain via the ubiquitin-proteasome pathway [J].
Huang, LE ;
Gu, J ;
Schau, M ;
Bunn, HF .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1998, 95 (14) :7987-7992
[3]   Regulation of the hypoxia-inducible transcription factor 1α by the ubiquitin-proteasome pathway [J].
Kallio, PJ ;
Wilson, WJ ;
O'Brien, S ;
Makino, Y ;
Poellinger, L .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1999, 274 (10) :6519-6525
[4]   Effects of hypoxia and post-hypoxic recovery on chick retinal pigment epithelium potentials and light-evoked responses in vitro [J].
Nakazaki, S ;
Nao-i, N ;
Sawada, A .
CURRENT EYE RESEARCH, 1998, 17 (04) :384-391
[5]   HIF-1, O2, and the 3 PHDs:: How animal cells signal hypoxia to the nucleus [J].
Semenza, GL .
CELL, 2001, 107 (01) :1-3
[6]  
Udono T, 2001, INVEST OPHTH VIS SCI, V42, P1080