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- W2745201621 abstract "Background and aims In-stent restenosis (ISR) remains a major limitation of percutaneous coronary intervention despite improvements in stent design and pharmacological agents, whereas the mechanism of ISR has not been fully clarified. In the present study, we sought to investigate the potential association of serum soluble TREM-1 (sTREM-1) levels with the incidence of ISR. The role of TREM-1 was evaluated in cultured vascular smooth muscle cells (VSMCs). Methods Out of 1683 patients undergoing coronary intervention and follow-up coronary angiography after approximately one year, 130 patients were diagnosed with ISR, and 150 gender- and age-matched patients with no ISR were randomly included as controls. Levels of sTREM-1 were determined by ELISA. The role of TREM-1 signaling in the activation of VSMCs was tested. Results Serum sTREM-1 concentrations were significantly elevated in patients with than without ISR. Multivariable logistic regression analysis showed that sTREM-1, besides conventional factors, was independently associated with the incidence of ISR. Evident expression of TREM-1 in VSMCs was detected in the neointimal and medial layers of stenotic lesions of mouse carotid ligation models. In cultured VSMCs, expression of TREM-1 was significantly induced upon exposure to lipopolysaccharide. Blocking of TREM-1 with a synthetic inhibitory peptide LP17 dramatically inhibited, whereas TREM-1-activating antibody promoted cellular inflammation, proliferation and migration in VSMCs. Conclusions These data suggest that TREM-1 is a predictive biomarker of ISR and an important mediator of cellular inflammation, migration, and proliferation in VSMCs. Pharmacological inhibition of TREM-1 may serve as a promising approach to attenuate the progression of ISR." @default.
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- W2745201621 date "2017-12-01" @default.
- W2745201621 modified "2023-09-26" @default.
- W2745201621 title "Increased serum TREM-1 level is associated with in-stent restenosis, and activation of TREM-1 promotes inflammation, proliferation and migration in vascular smooth muscle cells" @default.
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- W2745201621 doi "https://doi.org/10.1016/j.atherosclerosis.2017.10.015" @default.
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