Volume 40 Issue 4
Jul.  2019
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Wen-Ming He, Ting Dai, Jiong Chen, Jian-An Wang. Leukocyte cell-derived chemotaxin 2 inhibits development of atherosclerosis in mice. Zoological Research, 2019, 40(4): 317-323. doi: 10.24272/j.issn.2095-8137.2019.030
Citation: Wen-Ming He, Ting Dai, Jiong Chen, Jian-An Wang. Leukocyte cell-derived chemotaxin 2 inhibits development of atherosclerosis in mice. Zoological Research, 2019, 40(4): 317-323. doi: 10.24272/j.issn.2095-8137.2019.030

Leukocyte cell-derived chemotaxin 2 inhibits development of atherosclerosis in mice

doi: 10.24272/j.issn.2095-8137.2019.030
Funds:  This project was supported by the Program for the National Natural Science Foundation of China (31772876), Ningbo Municipal Bureau of Science and Technology (2018A610389), Scientific Innovation Team Project of Ningbo (2015C110018), and K.C. Wong Magna Fund in Ningbo University
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  • Corresponding author: Jiong Chen,Jian-An Wang
  • Received Date: 2019-04-01
  • Publish Date: 2019-07-18
  • Leukocyte cell-derived chemotaxin 2 (LECT2), a multifunctional hepatokine, is involved in many pathological conditions. However, its role in atherosclerosis remains undefined. In this study, we administered vehicle or LECT2 to male Apoe-/- mice fed a Western diet for 15 weeks. Atherosclerotic lesions were visualized and quantified with Oil-red O and hematoxylin staining. The mRNA expression levels of MCP-1, MMP-1, IL-8, IL-1β, and TNF-α were analyzed by quantitative real-time polymerase chain reaction. Serum TNF-α, IL-1β, IL-8, MCP-1, and MMP-1 concentrations were measured by enzyme-linked immunosorbent assay. CD68, CD31, and α-SMA, markers of macrophages, endothelial cells, and smooth muscle cells, respectively, were detected by immunostaining. Results showed that LECT2 reduced total cholesterol and low-density lipoprotein concentrations in serum and inhibited the development of atherosclerotic lesions, accompanied by reductions in inflammatory cytokines and lower MCP-1, MMP-1, TNF-α, IL-8, and IL-1β mRNA abundance. Furthermore, LECT2 decreased CD68, but increased α-SMA in atherosclerotic lesions, suggesting an increase in smooth muscle cells and reduction in macrophages. In summary, LECT2 inhibited the development of atherosclerosis in mice, accompanied by reduced serum total cholesterol concentration and lower inflammatory responses.
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