LIF and ulcerative colitis: In mice and humans, the miR-29 family is a series of small RNA molecules closely related to inflammation or apoptosis (11–13), and miR-29c can target leukemia inhibitory factor (LIF) in primary intestinal epithelial cells (ICEs) and is involved in the regulation of proliferation, apoptosis, and immune function, thereby regulating Ulcerative colitis (UC) (14).