BMAL1 and colorectal carcinoma: Immunohistochemical analysis demonstrated that CRC tumors in Bmal1−/− mice contained increased stromal fibroblasts, including positive structures of fibroblast activation protein (FAP), α‐SMA, DESMIN, platelet‐derived growth factor receptor alpha (PDGFRα), and platelet‐derived growth factor receptor beta (PDGFRβ) (Figure 1F).