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Article

Significance of ABCA1 in human carotid atherosclerotic plaques

  • Authors:
    • Heang-Fang Liu
    • Ke-Fei Cui
    • Jian-Ping Wang
    • Min Zhang
    • Ya-Pei Guo
    • Xue-Yuan Li
    • Chao Jiang
  • View Affiliations / Copyright

    Affiliations: Department of Neurology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China, Department of Ultrasound, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China, Department of Neurosurgery, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
  • Pages: 297-302
    |
    Published online on: May 15, 2012
       https://doi.org/10.3892/etm.2012.576
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Abstract

The ATP-binding cassette transporter A1 (ABCA1) is an important effector in the regulation of cholesterol efflux from cells. In this study, we assessed the role of ABCA1 in human carotid atherosclerotic plaques (CAPs). We found that ABCA1 and retinoid X receptor α (RXRα) mRNAs were significantly increased in the atherosclerotic plaques compared to control arteries. The increased ABCA1 mRNA correlated with that of RXRα in plaques. According to the modified American Heart Association plaque classification, atherosclerotic specimens were assigned to three grades, and ABCA1 and RXRα mRNA levels were compared across plaques of different grades. Resultantly, plaques of grade Ⅱ and Ⅲ exhibited higher mRNA levels than grade Ⅰ, but there was no difference in mRNA levels between plaques of grade Ⅱ and Ⅲ. By contrast, ABCA1 and RXRα protein levels were notably reduced in plaques relative to control tissues. Similarly, plaques of grade Ⅱ and Ⅲ exhibited lower ABCA1 and RXRα protein levels than grade Ⅰ, and there was no difference in protein levels between plaques of grade Ⅱ and Ⅲ. Our findings suggest that decreased ABCA1 protein plays a key role in the pathogenesis of CAP; the regulation of ABCA1 may be mediated by RXRα and ABCA1 mRNA levels may serve as an indicator for plaque stability.
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Copy and paste a formatted citation
Spandidos Publications style
Liu H, Cui K, Wang J, Zhang M, Guo Y, Li X and Jiang C: Significance of ABCA1 in human carotid atherosclerotic plaques. Exp Ther Med 4: 297-302, 2012.
APA
Liu, H., Cui, K., Wang, J., Zhang, M., Guo, Y., Li, X., & Jiang, C. (2012). Significance of ABCA1 in human carotid atherosclerotic plaques. Experimental and Therapeutic Medicine, 4, 297-302. https://doi.org/10.3892/etm.2012.576
MLA
Liu, H., Cui, K., Wang, J., Zhang, M., Guo, Y., Li, X., Jiang, C."Significance of ABCA1 in human carotid atherosclerotic plaques". Experimental and Therapeutic Medicine 4.2 (2012): 297-302.
Chicago
Liu, H., Cui, K., Wang, J., Zhang, M., Guo, Y., Li, X., Jiang, C."Significance of ABCA1 in human carotid atherosclerotic plaques". Experimental and Therapeutic Medicine 4, no. 2 (2012): 297-302. https://doi.org/10.3892/etm.2012.576
Copy and paste a formatted citation
x
Spandidos Publications style
Liu H, Cui K, Wang J, Zhang M, Guo Y, Li X and Jiang C: Significance of ABCA1 in human carotid atherosclerotic plaques. Exp Ther Med 4: 297-302, 2012.
APA
Liu, H., Cui, K., Wang, J., Zhang, M., Guo, Y., Li, X., & Jiang, C. (2012). Significance of ABCA1 in human carotid atherosclerotic plaques. Experimental and Therapeutic Medicine, 4, 297-302. https://doi.org/10.3892/etm.2012.576
MLA
Liu, H., Cui, K., Wang, J., Zhang, M., Guo, Y., Li, X., Jiang, C."Significance of ABCA1 in human carotid atherosclerotic plaques". Experimental and Therapeutic Medicine 4.2 (2012): 297-302.
Chicago
Liu, H., Cui, K., Wang, J., Zhang, M., Guo, Y., Li, X., Jiang, C."Significance of ABCA1 in human carotid atherosclerotic plaques". Experimental and Therapeutic Medicine 4, no. 2 (2012): 297-302. https://doi.org/10.3892/etm.2012.576
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