Abstract:
:Recent studies have clarified the significance of chemokines in cardiovascular diseases, such as development of atherosclerosis, atheromatous plaque rupture and restenosis after coronary angioplasty. We investigated changes in chemokine expression in the coronary circulation induced by percutaneous transluminal coronary angioplasty (PTCA) and their clinical significance. We examined 40 patients with angina pectoris who underwent elective PTCA for isolated stenotic lesions of the left coronary artery. Eight patients received PTCA only, 14 percutaneous transluminal rotational atherectomy and 18 stent implantation. Venous blood samples were obtained from the coronary sinus before, and immediately after as well as 4 and 24 h after PTCA. Plasma levels of interleukin (IL)-8, macrophage-colony stimulating factor (M-CSF) and monocyte chemoattractant protein-1 (MCP)-1 were measured by enzyme-linked immunosorbent assay. Plasma levels of M-CSF in the coronary sinus blood showed significant increases 4 and 24 h after PTCA. On the other hand, plasma MCP-1 levels did not change significantly during a 24-h observation period after PTCA. Immunoreactive IL-8 was not detected in any patients before or after PTCA. A significant positive correlation was found between plasma M-CSF levels 24 h after PTCA and late loss index 6 months after the procedure. Plasma levels of M-CSF 24 h after PTCA were significantly higher in patients with than in those without late restenosis. PTCA induced increases in plasma levels of M-CSF in the coronary circulation. Increased M-CSF expression may be involved in neointima formation at injured vessels through activation of mononuclear phagocytes.
journal_name
Atherosclerosisjournal_title
Atherosclerosisauthors
Hojo Y,Ikeda U,Katsuki T,Mizuno O,Fukazawa H,Fujikawa H,Shimada Kdoi
10.1016/s0021-9150(00)00611-0keywords:
subject
Has Abstractpub_date
2001-05-01 00:00:00pages
165-70issue
1eissn
0021-9150issn
1879-1484pii
S0021-9150(00)00611-0journal_volume
156pub_type
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