AHR and colorectal adenocarcinoma: It has also been found that SCFAs, mainly butyrate, can also modulate the body's immune function by interacting with the aryl hydrocarbon receptor (AHR) [13], whereas Alex [14] confirmed the ability of propionate and butyrate to stimulate angiopoietin-like protein 4 (ANGPTL) by interacting with peroxisome proliferator-activated receptor c (PPARc) on colorectal adenocarcinoma cells synthesis, As shown in Table 1.