S100A4 and coronary atherosclerosis: In humans, S100A4 is infrequently detected in coronary arteries, while it is markedly expressed in smooth muscle cells of patients suffering from coronary atherosclerosis and coronary restenosis, suggesting that the expression level of S100A4 in smooth muscle cells has significant potential to aid in the risk assessment of coronary atherosclerosis and coronary restenosis [95].