Overexpression of heme oxygenase-1 in coronary atherosclerosis of Japanese autopsies with diabetes mellitus: Hisayama study

被引:26
作者
Song, Jingyu [1 ]
Sumiyoshi, Shinji [1 ]
Nakashima, Yutaka [3 ]
Doi, Yasufumi [2 ]
Iida, Mitsuo [2 ]
Kiyohara, Yutaka [2 ]
Sueishi, Katsuo [1 ]
机构
[1] Kyushu Univ, Grad Sch Med Sci, Dept Pathol, Higashi Ku, Fukuoka 8128582, Japan
[2] Kyushu Univ, Grad Sch Med Sci, Dept Med, Fukuoka 8128582, Japan
[3] Fukuoka Red Cross Hosp, Div Pathol, Fukuoka, Japan
关键词
Heme oxygenase-1; Human coronary artery; Atherosclerosis; Diabetes mellitus; Immunohistochemistry; EXPRESSION; ANGIOGENESIS; DISEASE; NEOVASCULARIZATION; PROGRESSION; INTIMAS; LESIONS;
D O I
10.1016/j.atherosclerosis.2008.05.057
中图分类号
R5 [内科学];
学科分类号
100201 [内科学];
摘要
Few studies regarding the topographical expression of heme oxygenase-1 (HO-1) and its pathophysiological role in human coronary atherosclerotic lesions, particularly in relation to type 2 diabetes mellitus (DM) and intimal angiogenesis, have been reported. HO-I expression was immunohistochemically examined in 312 tissue blocks of coronary arteries obtained from 53 Japanese autopsy cases in Hisayama cohort study that included 19 diabetic subjects and 34 age- and sex-matched non-diabetic subjects (56-93 years old, mean +/- S.D.: 73 +/- 10). The HO-1 was ubiquitously distributed in atherosclerotic intima, and was mainly expressed by macrophages and endothelial cells, and partly by smooth muscle cells. The prevalence of HO-1 expression increased as the lesion type (as classified by the American Heart Association (AHA) Committee) and stenotic grade progressed (p<0.0001), and was significantly higher in diabetic than in non-diabetic subjects (p<0.01). This HO-1 overexpression was associated with greater CD-68-positive macrophage infiltration (p=0.005). Interestingly, the distribution of HO-1-positive cells was accentuated in coronary atherosclerotic lesions with intimal microvessels in diabetic subjects (p<0.05), particularly those with hypercholesterolemia (p<0.05), and was preferentially distributed in the shoulder region of atherosclerotic lesion type IV in the AHA classification (p<0.01). In conclusion, HO-1 expression was distributed in overall human coronary atherosclerotic lesions, particularly in diabetic subjects, indicating that HO-1 expression is intimately associated with atherogenesis and may play an important role as ail adaptive molecule in the inflammatory-repair process. The association of HO-1 overexpression with a greater extent of intraplaque angiogenesis suggests a multi-faceted role for HO-1 in modulating the progression of atherosclerosis. (C) 2008 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:573 / 581
页数:9
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