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川芎嗪、芍药苷合用通过miR-126/VEGF/VEGFR2信号通路抑制动脉粥样硬化血管新生
2023-11-16作者:来源:责任编辑:食品界 字体A+AA-
Introduction
Results and Discussion
如图1所示,与对照组比较,ox-LDL显著促进HUVECs增殖、迁移、成管;与模型组比较,TMP-PF或辛伐他汀显著抑制HUVECs增殖、迁移、成管。然而,与TMP-PF组比较,TMP-PF + miR-126抑制剂组HUVECs增殖、迁移显著增加;与模型组比较,TMP-PF + miR-126抑制剂组HUVECs成管未被抑制,提示miR-126 抑制剂可能抵消了TMP-PF对HUVECs增殖、迁移、成管的抑制作用。因此,TMP-PF可能通过调节miR-126而抑制ox-LDL诱导的血管新生。
如图2所示,与对照组比较,ox-LDL诱导的HUVECs中miR-126表达显著降低,细胞上清中VEGF水平显著升高;与模型组比较,TMP-PF组miR-126表达显著升高,VEGF水平显著降低。与TMP-PF组比较,TMP-PF + miR-126抑制剂组VEGF水平升高。研究提示,在ox-LDL诱导的HUVECs中,TMP-PF可能通过上调miR-126表达而降低VEGF水平。
如图3所示,与对照组比较,ox-LDL诱导的HUVECs中VEGF、VEGFR2、bFGF和FGFR1蛋白表达显著升高;与模型组比较,TMP-PF显著降低VEGF、VEGFR2、bFGF和FGFR1蛋白表达,辛伐他汀显著降低了VEGFR2和bFGF蛋白表达。然而,与模型组比较,TMP-PF + miR-126 抑制剂组 VEGF、VEGFR2蛋白表达未显著降低,提示miR-126 抑制剂可能抵消了TMP-PF对VEGF、VEGFR2的抑制作用。因此,在ox-LDL诱导的HUVECs中,TMP-PF可能通过上调miR-126表达而抑制VEGF、VEGFR2蛋白表达。
Conclusion
图4 TMP-PF通过调节miR-126/VEGF/VEGFR2信号通路抑制ox-LDL诱导的血管新生
第一作者简介
通信作者
高蕊,女,医学博士,主任医师,博士生导师,国家中医局中药临床药理重点学科学科带头人,国家药监局中药临床研究与评价重点实验室主任,中国中医科学院临床药理研究所副所长,全国中医临床优秀人才、中国中医科学院中青年名中医。
Yahui Yuana,b,1, Rong Yuana,b,1, Qiqi Xina,b, Yu Miaoa,b, Ying Chenc, Rui Gaod,e,*, Weihong Conga,b,*
a Laboratory of Cardiovascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
b National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
c School of Health Economics and Management, Nanjing University of Chinese Medicine, Nanjing 210023, China
d Institution of Clinical Pharmacology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
e Key Laboratory for Clinical Research and Evaluation of Traditional Chinese Medicine, National Medical Products Administration, Beijing 100091, China
1 These authors contributed equally and listed as co-first authors.
*Corresponding authors.
Abstract
Angiogenesis in atherosclerosis (AS) promotes plaque destabilization. miR-126 has a significant role in angiogenesis. Tetramethylpyrazine (TMP) and paeoniflorin (PF) have anti-atherosclerotic effects. However, the miR-126-related mechanisms of TMP and PF combination (TMP-PF) on angiogenesis in AS have not been understood. To explore the mechanism of TMP-PF on angiogenesis in AS targeting miR-126. Human umbilical vein endothelial cells (HUVECs) were assigned into the control, model, TMP-PF, TMP-PF + miR-126 inhibitor, and simvastatin groups. HUVECs were transfected with miR-126 inhibitor or negative control, incubated with oxidized low-density lipoprotein (ox-LDL) to establish AS model, and then treated with TMP-PF or simvastatin. Cell proliferation, migration, and tube formation assays are conducted, and the expression of angiogenesis-related factors were detected by enzyme-linked immunosorbent assay (ELISA) and Western blotting. The expression level of miR-126 was confirmed by polymerase chain reaction (PCR).
ox-LDL promoted HUVECs proliferation, migration, and tube formation, downregulated miR-126 expression, and increased the expression of VEGF, VEGFR2, bFGF, and FGFR1. TMP-PF inhibited proliferation, migration, and tube formation, upregulated miR-126 expression and decreased the expression of VEGF, VEGFR2, bFGF, and FGFR1 in ox-LDL-induced HUVECs. However, the effects of TMP-PF on angiogenesis and the expression of miR-126, VEGF, VEGFR2, and FGFR1 were abolished by miR-126 inhibitor. TMP-PF suppressed angiogenesis in AS by regulating miR-126/VEGF/VEGFR2 pathway, which might elucidate the underlying mechanism of TMP-PF in alleviating AS.
YUAN Y H, YUAN R, XIN Q Q, et al. Tetramethylpyrazine and paeoniflorin combination (TMP-PF) inhibits angiogenesis in atherosclerosis via miR-126/VEGF/VEGFR2 signaling pathway[J]. Journal of Future Foods, 2024, 4(3): 280-287. DOI:10.1016/j.jfutfo.2023.07.010.