Intestinal specific LXR activation stimulates reverse cholesterol transport and protects from atherosclerosis
Articolo
Data di Pubblicazione:
2010
Citazione:
Intestinal specific LXR activation stimulates reverse cholesterol transport and protects from atherosclerosis / G. Lo Sasso, S. Murzilli, L. Salvatore, I. D'Errico, M. Petruzzelli, P. Conca, Z.Y. Jiang, L. Calabresi, P. Parini, A. Moschetta. - In: CELL METABOLISM. - ISSN 1550-4131. - 12:2(2010), pp. 187-193. [10.1016/j.cmet.2010.07.002]
Abstract:
Several steps of the HDL-mediated reverse cholesterol transport (RCT) are transcriptionally regulated by the nuclear receptors LXRs in the macrophages, liver, and intestine. Systemic LXR activation via synthetic ligands induces RCT but also causes increased hepatic fatty acid synthesis and steatosis, limiting the potential therapeutic use of LXR agonists. During the last few years, the participation of the intestine in the control of RCT has appeared more evident. Here we show that while hepaticspecific LXR activation does not contribute to RCT, intestinal-specific LXR activation leads to decreased intestinal cholesterol absorption, improved lipoprotein profile, and increased RCT in vivo in the absence of hepatic steatosis. These events protect against atherosclerosis in the background of the LDLR-deficient mice. Our study fully characterizes the molecular and metabolic scenario that elects the intestine as a key player in the LXR-driven protective environment against cardiovascular disease.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
G. Lo Sasso, S. Murzilli, L. Salvatore, I. D'Errico, M. Petruzzelli, P. Conca, Z.Y. Jiang, L. Calabresi, P. Parini, A. Moschetta
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