Sterculic acid antagonizes 7-ketocholesterol-mediated inflammation and inhibits choroidal neovascularization.

Sterculic acid antagonizes 7-ketocholesterol-mediated inflammation and inhibits choroidal neovascularization.
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DOI:
10.1016/j.bbalip.2012.01.013
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发表时间:
2012-04
期刊:
Biochimica et biophysica acta
影响因子:
--
通讯作者:
Rodriguez IR
Rodriguez IR
中科院分区:
其他
文献类型:
--
作者:
Huang JD;Amaral J;Lee JW;Larrayoz IM;Rodriguez IR

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Sterculic acid是一种具有多种生物活性的环丙烯脂肪酸。在这项研究中,我们证明了胖大海酸是一种有效的抑制内质网(ER)的压力和相关的炎症引起的7-酮胆固醇(7 KCh)。7 KCh是一种高毒性的氧固醇,被怀疑在各种年龄相关性疾病如动脉粥样硬化、阿尔茨海默病和年龄相关性黄斑变性的发病机制中。在抑制培养细胞中7 KCh介导的炎症反应方面,证实了Sterculic acid比其他抗炎脂肪酸有效5-10倍。在体内,在激光损伤大鼠模型中,胖大海酸可有效抑制脉络膜新生血管(CNV)的形成。我们的数据表明,在治疗某些形式的年龄相关性黄斑变性的CNV中,胖大海酸可能是有用的。
Sterculic acid is a cyclopropene fatty acid with numerous biological activities. In this study we demonstrate that sterculic acid is a potent inhibitor of endoplasmic reticulum (ER) stress and related inflammation caused by 7-ketocholesterol (7KCh). 7KCh is a highly toxic oxysterol suspected in the pathogenesis of various age-related diseases such as atherosclerosis, Alzheimer’s disease and age-related macular degeneration. Sterculic acid demonstrated to be 5–10 times more effective than other anti-inflammatory fatty acids at inhibiting 7KCh-mediated inflammatory responses in cultured cells. In vivo, sterculic acid was effective at inhibiting the formation of choroidal neovascularization (CNV) in the laser-injury rat model. Our data suggests that sterculic acid may be useful in treating CNV in certain forms of age-related macular degeneration.
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