SAA1 and atherosclerosis: Second, in addition to platelets, endothelial cells, and monocytes, other cells (dendritic cells, T cells, vascular smooth muscle cells, mast cells, and neutrophils) are indirectly involved in the development of atherosclerosis [1], so it is not clear whether SAA1 may also aggravate atherosclerosis by affecting the biological functions of these cells.