Rebecca Bertolio, Francesco Napoletano, Miguel Mano, Sebastian Maurer-Stroh, Marco Fantuz, Alessandro Zannini, Silvio Bicciato, Giovanni Sorrentino, Giannino Del Sal
Sterol regulatory element binding proteins (SREBPs) are a family of transcription factors that regulate lipid biosynthesis and adipogenesis by controlling the expression of several enzymes required for cholesterol, fatty acid, triacylglycerol and phospholipid synthesis. In vertebrates, SREBP activation is mainly controlled by a complex and well-characterized feedback mechanism mediated by cholesterol, a crucial bio-product of the SREBP-activated mevalonate pathway. In this work, we identified acto-myosin contractility and mechanical forces imposed by the extracellular matrix (ECM) as SREBP1 regulators...
March 22, 2019: Nature Communications