Abstract
Objective
To explore the correlation between Fc γ RIII A (CD16A) and aortic atherosclerotic plaque destabilization in apoE knockout (apoE KO) mice and the intervention effects of effective components of Chuanxiong Rhizome and Red Peony Root.
Methods
Eight 8-week-old male C57BL/6J mice were selected as the control group. Forty 8-week-old male apoE KO mice were randomly divided into the model group, apoE KO + intraperitoneal injection immunoglobulin group (IVIG), apoE KO + simvastatin group (Sm), apoE KO + high dosage of Xiongshao Capsule (XSC, 芎芍胶囊) group (XSCH), and apoE KO + low dosage of XSC group (XSCL), 8 mice in each group. Mice in the control group were put on a normal diet, and others were fed with a high-fat diet. After 10-week different interventions, monocyte CD16 expression was detected by flow cytometry, aortic matrix metalloproteinase-9 (MMP-9) mRNA expression was detected using reverse transcriptionpolymerase chain reaction, and serum tumor necrosis factor (TNF)-α level was detected using enzyme-linked immunosorbent assay.
Results
Compared with the control group, monocyte CD16 expression, aortic MMP-9 mRNA expression, and serum TNF-α level in the model group increased obviously (P<0.01). Injections of apoE KO mice with intraperitoneal immunoglobulin during a 5-day period significantly reduced the monocyte CD16 expression, aortic MMP-9 mRNA expression, and serum TNF-α level (P<0.01 or 0.05) over a 10-week period of high-fat diet. Indices above in the Sm group, XSCH group, and XSCL group decreased in a different degree. Of them, the aortic MMP-9 mRNA expression in XSCH group was lower than that in Sm group (P<0.05) and the monocyte CD16 expression and serum TNF-α level showed no significant difference between XSCH group and Sm group (P>0.05). Correlation analyses suggested positive correlation between monocyte CD16 expression and aortic MMP-9 mRNA expression or serum TNF-α level in IVIG group, XSCH group, and XSCL group.
Conclusions
FcγR III A mediates systemic inflammation in the progression of coronary heart disease with blood stasis syndrome. XSC could stabilize atherosclerotic plaque by suppressing inflammation and its target was relative with FcγRIII A.
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Supported by the National Key Basic Research and Development Program of China (No. 81073086)
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Huang, Y., Yin, Hj., Ma, Xj. et al. Correlation between Fc γ R III a and aortic atherosclerotic plaque destabilization in ApoE knockout mice and intervention effects of effective components of Chuanxiong Rhizome and Red Peony Root . Chin. J. Integr. Med. 17, 355–360 (2011). https://doi.org/10.1007/s11655-011-0726-y
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DOI: https://doi.org/10.1007/s11655-011-0726-y