Ontology highlight
ABSTRACT:
SUBMITTER: Sene A
PROVIDER: S-EPMC3640261 | biostudies-literature | 2013 Apr
REPOSITORIES: biostudies-literature
Cell metabolism 20130401 4
Pathologic angiogenesis mediated by abnormally polarized macrophages plays a central role in common age-associated diseases such as atherosclerosis, cancer, and macular degeneration. Here we demonstrate that abnormal polarization in older macrophages is caused by programmatic changes that lead to reduced expression of ATP binding cassette transporter ABCA1. Downregulation of ABCA1 by microRNA-33 impairs the ability of macrophages to effectively efflux intracellular cholesterol, which in turn lea ...[more]