BRD4 and inflammatory bowel disease: In line with previous studies showing a diffuse expression of BRD4 in immune and non-immune cells (Wang N. et al., 2021), we showed that virtually all the immune cell types in the gut were positive for BRD4 and that, in IBD mucosa, T lymphocytes and antigen-presenting cells were the major sources (Franze et al., 2024a) (Figure 2).