IL33 and atherosclerosis: While a few reports have shown that IL-33 induced endothelial cell activation and increased angiogenesis and vascular permeability, in contrast, others have demonstrated that treatment with IL-33 reduced experimental atherosclerosis (Miller et al., 2008; Choi et al., 2009; Aoki et al., 2010; Demyanets et al., 2011; Altara et al., 2018).