INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Preparation and Characterization of Multifunctional Vascular Stent Coating Based on Notch Signal Pathway Inhibitor |
JIN Leiyuan1, HU Fangkun1, JIANG Xiaojiao1, XIA Li1, LIU Ran1, XU Jiale1, TU Qiufen1,2,*, XIONG Kaiqin2
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1 Key Laboratory of Advanced Technologies of Materials of Ministry of Education, College of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China 2 Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu 610031, China |
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Abstract Inflammatory reaction runs through the whole process of atherosclerosis (AS), and is highly related to a series of adverse events after vascular stent implantation, including in stent restenosis (ISR), late stent thrombosis (LST) and in stent neoatherosclerosis (ISNA) and so on. In many inflammatory diseases (including AS), Notch signaling pathway is abnormally activated. Therefore, the loading of Notch signaling pathway inhibitor (NSPI) is expected to reduce inflammation and then alleviate the complications of stent implantation. Herein, we proposed a modification strategy, using poly (lactic acid glycolic acid) copolymer (PLGA) as the carrier to load RO4929097, Notch signal pathway inhibitor, the surface of stent by ultrasonic atomization spraying to construct the NSPI/PLGA multi-functional vascular stent. The results show that NSPI/PLGA vascular stent can effectively release RO4929097 for up to 30 d, and can simultaneously inhibit inflammation, promote endothelial cell proliferation, anti-smooth muscle cell proliferation and anticoagulation. So this strategy has great potential in the field of interventional therapy.
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Published: 25 June 2024
Online: 2024-07-17
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