川芎嗪、芍藥苷合用通過miR-126/VEGF/VEGFR2信號通路抑制動(dòng)脈粥樣硬化血管新生

2023-11-16作者:來源:責(zé)任編輯:食品界 字體A+AA-


Introduction

動(dòng)脈粥樣硬化(atherosclerosis,AS)斑塊破裂及隨后的急性心血管事件是心血管疾病死亡的主要原因,而斑塊內(nèi)血管新生與斑塊破裂密切相關(guān)。川芎嗪(tetramethylpyrazine,TMP)具有調(diào)節(jié)血管新生、內(nèi)皮保護(hù)、抑制血管平滑肌細(xì)胞增殖和遷移等多種生理功能,具有抗AS作用。芍藥苷(paeoniflorin,PF)具有抗炎、抗血栓和心臟保護(hù)作用。前期研究表明TMP、PF合用(TMP-PF)能抑制氧化低密度脂蛋白(oxidized low-density lipoprotein,ox-LDL)誘導(dǎo)的人臍靜脈內(nèi)皮細(xì)胞(human umbilical vein endothelial cells,HUVECs)血管新生。miR-126是一種內(nèi)皮細(xì)胞特異性微小RNA,可以通過調(diào)節(jié)內(nèi)皮細(xì)胞的增殖和遷移調(diào)節(jié)血管新生。血管內(nèi)皮細(xì)胞生長因子(vascular endothelial growth factor,VEGF)通過與其受體2(VEGF receptor 2,VEGFR2)結(jié)合導(dǎo)致下游信號激活,可以促進(jìn)內(nèi)皮細(xì)胞的增殖、遷移和成管,進(jìn)而促進(jìn)血管新生。堿性成纖維細(xì)胞生長因子(basic fibroblast growth factor,bFGF)與FGF受體1(FGF receptor 1,F(xiàn)GFR1)相互作用,發(fā)揮促血管新生作用。本研究通過擬AS細(xì)胞模型、體外血管新生實(shí)驗(yàn)(細(xì)胞增殖、遷移和成管實(shí)驗(yàn))和血管新生因子(VEGF、VEGFR2、bFGF和FGFR1)檢測,研究TMP-PF通過靶向miR-126對AS血管新生的影響及其潛在機(jī)制。

Results and Discussion

TMP-PF通過調(diào)節(jié)miR-126抑制ox-LDL誘導(dǎo)的血管新生

如圖1所示,與對照組比較,ox-LDL顯著促進(jìn)HUVECs增殖、遷移、成管;與模型組比較,TMP-PF或辛伐他汀顯著抑制HUVECs增殖、遷移、成管。然而,與TMP-PF組比較,TMP-PF + miR-126抑制劑組HUVECs增殖、遷移顯著增加;與模型組比較,TMP-PF + miR-126抑制劑組HUVECs成管未被抑制,提示miR-126 抑制劑可能抵消了TMP-PF對HUVECs增殖、遷移、成管的抑制作用。因此,TMP-PF可能通過調(diào)節(jié)miR-126而抑制ox-LDL誘導(dǎo)的血管新生。

1 TMP-PF通過調(diào)節(jié)miR-126抑制ox-LDL誘導(dǎo)的HUVECs增殖、遷移、成管
TMP-PF上調(diào)ox-LDL誘導(dǎo)的HUVECs中miR-126表達(dá)、降低VEGF水平

如圖2所示,與對照組比較,ox-LDL誘導(dǎo)的HUVECs中miR-126表達(dá)顯著降低,細(xì)胞上清中VEGF水平顯著升高;與模型組比較,TMP-PF組miR-126表達(dá)顯著升高,VEGF水平顯著降低。與TMP-PF組比較,TMP-PF + miR-126抑制劑組VEGF水平升高。研究提示,在ox-LDL誘導(dǎo)的HUVECs中,TMP-PF可能通過上調(diào)miR-126表達(dá)而降低VEGF水平。


2 TMP-PF上調(diào)miR-126表達(dá)、降低VEGF水平
TMP-PF通過調(diào)節(jié)miR-126抑制ox-LDL誘導(dǎo)的HUVECs血管新生相關(guān)因子的表達(dá)

如圖3所示,與對照組比較,ox-LDL誘導(dǎo)的HUVECs中VEGF、VEGFR2、bFGF和FGFR1蛋白表達(dá)顯著升高;與模型組比較,TMP-PF顯著降低VEGF、VEGFR2、bFGF和FGFR1蛋白表達(dá),辛伐他汀顯著降低了VEGFR2和bFGF蛋白表達(dá)。然而,與模型組比較,TMP-PF + miR-126 抑制劑組 VEGF、VEGFR2蛋白表達(dá)未顯著降低,提示miR-126 抑制劑可能抵消了TMP-PF對VEGF、VEGFR2的抑制作用。因此,在ox-LDL誘導(dǎo)的HUVECs中,TMP-PF可能通過上調(diào)miR-126表達(dá)而抑制VEGF、VEGFR2蛋白表達(dá)。

3 TMP-PF通過調(diào)節(jié)miR-126抑制ox-LDL誘導(dǎo)的HUVECs血管新生相關(guān)因子的表達(dá)

Conclusion

本研究表明TMP-PF可能通過調(diào)節(jié)miR-126/VEGF/VEGFR2信號通路抑制ox-LDL誘導(dǎo)的血管新生(圖4),從而為抑制AS血管新生提供了一種新的治療方法,有利于動(dòng)脈粥樣硬化性血管疾病的防治。

圖4 TMP-PF通過調(diào)節(jié)miR-126/VEGF/VEGFR2信號通路抑制ox-LDL誘導(dǎo)的血管新生

第一作者簡介

袁亞慧,女,醫(yī)學(xué)碩士,主要研究方向?yàn)橹兴幐深A(yù)心血管疾病研究。

袁蓉,女,醫(yī)學(xué)博士,助理研究員,主要研究方向?yàn)橹形麽t(yī)結(jié)合防治心血管病。入選中國中醫(yī)科學(xué)院優(yōu)秀青年科技人才,曾獲北京市優(yōu)秀畢業(yè)生、北京中醫(yī)藥大學(xué)優(yōu)秀博士學(xué)位論文、“岐黃杯”第十屆全國中醫(yī)藥博士生優(yōu)秀論文獎(jiǎng)等。

通信作者

叢偉紅,女,醫(yī)學(xué)博士,研究員,博士生導(dǎo)師,現(xiàn)任中國中醫(yī)科學(xué)院西苑醫(yī)院心血管病實(shí)驗(yàn)室、國家(中醫(yī))心血管病臨床醫(yī)學(xué)研究中心實(shí)驗(yàn)室主任。從事中西醫(yī)結(jié)合基礎(chǔ)、臨床研究及新藥研發(fā)20余年,主要研究方向?yàn)橹形麽t(yī)結(jié)合防治心腦血管病和阿爾茨海默病,曾獲全國大型公益評選“榮耀醫(yī)者”青年創(chuàng)新獎(jiǎng),入選全國中醫(yī)藥傳承與創(chuàng)新“百千萬”人才。

高蕊,女,醫(yī)學(xué)博士,主任醫(yī)師,博士生導(dǎo)師,國家中醫(yī)局中藥臨床藥理重點(diǎn)學(xué)科學(xué)科帶頭人,國家藥監(jiān)局中藥臨床研究與評價(jià)重點(diǎn)實(shí)驗(yàn)室主任,中國中醫(yī)科學(xué)院臨床藥理研究所副所長,全國中醫(yī)臨床優(yōu)秀人才、中國中醫(yī)科學(xué)院中青年名中醫(yī)。


Tetramethylpyrazine and paeoniflorin combination (TMP-PF) inhibits angiogenesis in atherosclerosis via miR-126/VEGF/VEGFR2 signaling pathway

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.


Reference:

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.

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