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Elevated level of ADAMTS4 in plasma and peripheral monocytes from patients with acute coronary syndrome

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Abstract

Objectives

A recent study shows that ADAMTS4 is expressed in macrophage-rich areas of human atherosclerotic carotid plaques and coronary unstable plaques, suggesting a pathogenic role of ADAMTS4 in the development of acute coronary syndrome (ACS). We investigated (a) whether the expression level of ADAMTS4 in plasma and peripheral blood mononuclear cells was affected; and (b) whether there was a relationship with hs-CRP level and the stability of coronary atherosclerotic plaque in patients with ACS.

Methods

Our study included 30 normal controls and 120 patients including 40 with stable angina (SA), 50 with unstable angina (UA), and 30 with acute myocardial infarction (AMI). The expression of ADAMTS4 in monocytes was analyzed by RT-PCR and plasma ADAMTS4 level was determined by ELISA. All coronary stenosis with >30% diameter reduction was assessed by angiographic coronary stenosis morphology.

Results

Patients with ACS showed a significant increase of ADAMTS4 (2.7 ± 0.4) expression in monocytes compared with controls (1.1 ± 0.2) and the SA group (1.3 ± 0.2) (P < 0.001). Plasma ADAMTS4 also showed a higher level in ACS patients (100.2 ± 31.6 ng/ml) than in control (47.5 ± 9.0 ng/ml, P < 0.001) and the SA group (54.3 ± 13.2 ng/ml, P < 0.001). Moreover, we found a positive correlation between hs-CRP and ADAMTS4 expression in monocytes as well as in plasma. There was also a positive correlation of ADAMTS4 expression in monocytes and plasma with complex coronary stenosis (r 1 = 0.61, r 2 = 0.57, P < 0.001).

Conclusions

Patients with ACS showed increased ADAMTS4 expression, which may aggravate the development of atherosclerosis and instability of atherosclerotic plaques. Therefore, the ADAMTS4 expression may be a valuable marker for predicting the severity of ACS.

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Acknowledgments

We would like to thank Dr. Lianqun Cui for his critical review on this manuscript. We also thank participants, general practitioners and staff members in the Department of Cardiology as well as the support from Central Research Laboratories at our institution.

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Authors and Affiliations

  1. Department of Cardiology, Provincial Hospital Affiliated to Shandong University, Jinan, China

    Yanping Zha, Yong Chen, Fayun Xu, Chuanyan Zhao & Lianqun Cui

  2. Department of Central Laboratory, Provincial Hospital Affiliated to Shandong University, Jinan, China

    Jie Zhang

  3. Department of Clinical Biochemistry, Provincial Hospital Affiliated to Shandong University, Jinan, China

    Tian Li

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  1. Yanping Zha
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  2. Yong Chen
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Correspondence to Lianqun Cui.

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Zha, Y., Chen, Y., Xu, F. et al. Elevated level of ADAMTS4 in plasma and peripheral monocytes from patients with acute coronary syndrome. Clin Res Cardiol 99, 781–786 (2010). https://doi.org/10.1007/s00392-010-0183-1

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  • DOI: https://doi.org/10.1007/s00392-010-0183-1

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