Description
20(S)-hydroxy Cholesterol is an allosteric agonist of the smoothened (Smo) receptor that activates the hedgehog (Hh) signaling pathway with an EC
50 value of approxiately 3 μM in a gene transcription reporter assay using NIH3T3 cells. 20(S)-hydroxy Cholesterol is necessary for normal Hh signaling. It induces Smo accumulation in primary cilia, an early event in signaling, and binds to the extracellular, cysteine-rich domain of Smo. 20(S)-hydroxy Cholesterol also stimulates osteogenic differentiation of pluripotent bone marrow stromal cells, a process mediated
via Hh and Notch signaling.
Chemical Properties
White Solid
Uses
A metabolite of Cholesterol. Cholesterol oxidation product having cytotoxicity effects
Uses
A metabolite of Cholesterol (C432501). Cholesterol oxidation product having cytotoxicity effects.
Definition
ChEBI: An oxysterol that is cholesterol substituted by a hydroxy group at position 20.
References
1) Janowski?et al. (1996),?An oxysterol signaling pathway mediated by the nuclear receptor LXR7alpha; Nature,?383?728
2) Kha?et al. (2004),?Oxysterols regulate differentiation of mesenchymal stem cells: Pro-bone and Anti-fat: J. Bone Min. Res.,?19?830
3) Kim?et al. (2010),?Osteogenic oxysterol, 20(S)-hydroxycholesterol, induces notch target gene expression in bone marrow stromal cells; J. Bone Miner. Res.,?25?7823
4) Dwyer?et al. (2007),?Oxysterols are novel activators of the hedgehog signaling pathway in pluripotent mesenchymal cells; J. Biol. Chem.,?282?8959
5) Nedelcu?et al. (2013);?Oxysterol binding to the extracellular domain of Smoothened in Hedgehog signaling; Nat. Chem. Biol.,?9?557
6) Cheng?et al. (2021);?A proteome-wide map of 20(S)-hydroxycholesterol interactors in cell membranes; Nat. Chem. Biol.,?17?1271
