After co-incubating CD8+T cells with ICC cells deficient or overexpressing circSLCO1B3 at a ratio of 10:1 for 48 hours, the supernatants were obtained. ELISA was used to test the concentration of Interleukin 10 (IL-10), Interleukin 2 (IL-2), interferon-gamma (IFNγ), or tumor necrosis...