IL2 and atherosclerosis: Several immunological therapies, such as the use of an FcR-nonbinding anti-CD3 monoclonal antibody [27, 28], an IL-2/anti-IL-2 monoclonal antibody complex [29], their combination [30], and the active form of vitamin D3, have been shown to be valid approaches to prevent atherosclerosis by increasing Treg numbers [31].