Down‐regulation of the LXR transcriptome provides the requisite cholesterol levels to proliferating hepatocytes
Giuseppe Lo Sasso, Nicola Celli, Mariaelena Caboni, Stefania Murzilli, Lorena Salvatore, Annalisa Morgano, Michele Vacca, Tommaso Pagliani, Paolo Parini, Antonio Moschetta – 26 March 2010 – Cholesterol homeostasis is critical for cellular proliferation. Liver X receptor (LXR) α and β are the nuclear receptors responsible for regulation of cholesterol metabolism. In physiological conditions, high intracellular cholesterol levels cause increased synthesis of oxysterols, which activate LXR, thus triggering a transcriptional response for cholesterol secretion and catabolism.