APOA1 and atherosclerosis: Over the lengthy period during which the autoimmune hypothesis of atherosclerosis has been developed and strengthened, the role of the immune response against oxidized LDL, the heat shock proteins (hsps) of microorganisms, apolipoprotein A‐1 (main protein constituent of high‐density lipoprotein [HDL]) and vessel wall antigens have been studied.5, 6, 7