4-CMTB or GSK137647 significantly lower FFAR2 protein level (p = 0.0259 and p = 00269, respectively), and FFAR4 protein level (p = 0.0176 and p = 0.0014, respectively) in CRC cells (Fig. 1e-f, S2). The gene discussed is FFAR4; the disease is colorectal carcinoma.