NewslettersImmune Regulation NewsSulfated Bile Acid Is a Host-Derived Ligand for MAIT CellsBy Noshin Noorjahan - January 29, 2024062Investigators reported that a sulfated bile acid, cholic acid 7-sulfate, bound to the nonclassical MHC class I protein MR1 and was recognized by mucosal-associated invariant T (MAIT) cells.[Science Immunology]Abstract