Journal of Biomedical Science

, Volume 15, Issue 5, pp 577–583

Apolipoprotein A-I attenuates renal ischemia/reperfusion injury in rats

Authors

  • Ning Shi
    • Department of Biochemistry, School of PharmacyFudan University
    • Department of Biochemistry, School of PharmacyFudan University
Original Paper

DOI: 10.1007/s11373-008-9258-7

Cite this article as:
Shi, N. & Wu, M. J Biomed Sci (2008) 15: 577. doi:10.1007/s11373-008-9258-7

Abstract

Apolipoprotein A-I (ApoA-I), the major protein component of serum high-density lipoprotein (HDL), exhibits its anti-inflammatory activity in inflammatory responses. As renal inflammation plays an important role in ischemia/reperfusion (I/R) injury of the kidney, the aim of this study was to investigate the beneficial effect of ApoA-I on renal I/R injury in rats and the underlined mechanism. Using rats subjected to renal I/R by occlusion of bilateral renal pedicles, we found that administration of ApoA-I significantly reduced serum creatinine levels, serum TNF-α and IL-1β levels as well as tissue myeloperoxidase (MPO) activity, compared with I/R controls. Moreover, ApoA-I treatment suppresses the expression of intercellular adhesion molecules-1 (ICAM-1) and P-selectin on endothelium, thus diminishing neutrophil adherence and the subsequent tissue injury. These results showed that ApoA-I reduced I/R-induced inflammatory responses, decreased renal microscopic damage and improved renal function. It seems likely that ApoA-I protects kidney from I/R injury by inhibiting inflammatory cytokines release and neutrophil infiltration and activation.

Keywords

Apolipoprotein A-IIschemia/reperfusionMyeloperoxidaseNeutrophilCytokines

Copyright information

© National Science Council Taipei 2008