For this, we purified PDGFRα+ FAPs using Magnetic activated cell sorting (MACS) 3 days after a CTX injury and evaluated the expression of the key early adipogenic genes Cebpα (CCAAT enhancer binding protein alpha) and Pparγ (Peroxisome proliferator activated receptor gamma) (Fig. 1f). Here, PDGFRA is linked to cerebrotendinous xanthomatosis.