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Proteomics Clin Appl. 2016 Jul;10(7):750-9. doi: 10.1002/prca.201500114. Epub 2016 May 30.

Aqueous Terminalia arjuna extract modulates expression of key atherosclerosis-related proteins in a hypercholesterolemic rabbit: A proteomic-based study.

Author information

1
Department of Experimental Medicine and Biotechnology, PGIMER, Chandigarh, India.

Abstract

PURPOSE:

The present study evaluates the effect of an aqueous extract of Terminalia arjuna (aqTAE) on protein expression in aortic plaques of hypercholesterolemic rabbits using a proteomic approach.

EXPERIMENTAL DESIGN:

Thirty male New Zealand rabbits (n = 6) were employed as Gp1 (stock diet); Gp2 (high-fat diet [HFD]); Gp3 (stock diet + aqTAE); Gp4 (HFD + aqTAE); and Gp5 (HFD + atorvastatin) and followed for 6 months. Protein lysates of aortic tissues were separated by 2DE and proteins were identified by MALDI-TOF/MS.

RESULTS:

Serum lipids were found to be significantly increased by an HFD and reduced by aqTAE both at 3 and 6 months (Gp4 vs. Gp2; p < 0.05). Total 79 spots were differentially expressed, among which 60 individual proteins were identified, 31 grouped as atherosclerosis-related proteins and 29 classified as others. aqTAE significantly attenuated the protein expression of tumor necrosis factor α, cyclooxygenase-2, MMP-9, HSP60, ICAM-5, Endothelin-3, Vimentin, Protein S100-A9 besides others. Many of the observed proteins are known to be consistently associated with endothelial dysfunction, inflammation, plaque rupture, and immune imbalance.

CONCLUSIONS AND CLINICAL RELEVANCE:

Strong hypolipidemic effects of aqTAE and attenuation of these signature atherogenic biomarkers using proteomics highlights the fact that aqTAE may be useful in the prevention and management of atherosclerosis.

KEYWORDS:

Cytokine; Isoelectric focusing; Mass spectroscopy; Terminalia arjuna

PMID:
26934842
DOI:
10.1002/prca.201500114
[Indexed for MEDLINE]

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