SMAD3 and atherosclerosis: Zhang et al. [19] found that circ_0003204 RNA inhibits proliferation and migration of endothelial cells in atherosclerosis via the miR-370-3p/TGFβR2/phosph-SMAD3 axis, while Peng et al. [20] declared that thymic stromal lymphopoietin promotes endothelial cell proliferation and migration in atherosclerosis by inducing HOTAIR activation.