| abstract |
Fatostatin, a recently described inhibitor of SREBP activation, significantly reduces the level of mutant p53 binding to the HMG-CoA reductase gene promoter. Further, fatostatin treatment had a dramatic effect on normalizing the abnormal 3D morphology of 3 strains of breast cancer cells: MDA-468 cells, MDA-231 cells, and SKBR3 cells. The results show a functional interaction with SREBPs as being critical for mutant p53-mediated upregulation of the mevalonate pathway genes. At a clinical level, inhibition of the mevalonate pathway, either alone or in combination with other therapies, offers a novel, safe and much needed therapeutic option for tumors bearing mutant p53. |