Rabbit polyclonal antibody to PPARβ

Peroxisome proliferator~activated receptor~δ (PPARδ, also known as PPARβ or PPARβ/δ) is a widely expressed member of the PPAR nuclear receptor family, which controls lipid homeostasis . In response to various ligands, PPAR proteins heterodimerize with retinoid X receptors (RXRs) in order to bind DNA and regulate target genes. PPARδ plays a role in many different biological functions, including cholesterol efflux, embryo implantation, preadipocyte proliferation, and wound healing (5~8). PPARδ has been implicated in colorectal cancer (CRC), as it is normally downregulated by APC, a tumor suppressor frequently knocked out in CRCs . More recently, high fat diets have been found to induce PPARδ in intestinal stem cells and progenitors, increasing their tumorigenicity. Furthermore, in Huntington's disease (HD) mouse models, it was shown that PPARδ was unable bind to huntingtin protein when mutated, which repressed its function. Agonist~induced activation of PPARδ in HD model mice improved cognitive function and increased survival time.