Altered cholesterol homeostasis in aged macrophages linked to neovascular macular degeneration.

Chen, Jing; Smith, Lois E H · Cell Metab · 2013

basic_science · Level V

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Abstract

Abnormal lipid metabolism has been linked to age-related macular degeneration (AMD); choroidal neovascularization in late AMD commonly causes blindness. Sene et al. (2013) now demonstrate that in aged macrophages decreased ABCA1 expression, regulated by liver X receptor and miR-33, impairs export of intracellular cholesterol, which promotes neovascular AMD.