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第41卷第5期 南京医科大学学报(自然科学版)
2021年5月 Journal of Nanjing Medical University(Natural Sciences) ·657 ·
·基础医学·
低强度脉冲超声抑制血管平滑肌和成纤维细胞的钙化
李珺晗,邱 铭,陆 艳,孙 伟,孔祥清 *
南京医科大学第一附属医院心血管内科,江苏 南京 210029
[摘 要] 目的:探究低强度脉冲超声(low intensity pulsed ultrasound,LIPUS)对高钙磷诱导的大鼠血管平滑肌细胞(rat vascu⁃
lar smooth muscle cell,rVSMC)及大鼠血管成纤维细胞(rat vascular adventitial fibroblasts,rVAF)钙化是否有抑制作用。方法:提
取rVSMCs及rVAF,通过钙浓度测定、碱性磷酸酶(alkaline phosphatase,ALP)活性测定、茜素红染色等方法检测不同声强的低
强度脉冲超声对钙化的作用;Western blot、real⁃time PCR探究低强度脉冲超声对细胞成骨分化的作用。结果:LIPUS处理显著
抑制了高钙磷培养基诱导 rVSMCs 及 rVAF 的钙沉积及 ALP 活性的升高,同时在 14 mW/cm 声强 LIPUS 处理后,rVSMCs 及
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rVAF的成骨分化标志物的表达显著降低。结论:LIPUS抑制高磷钙诱导的rVSMCs及rVAF成骨分化标志物的表达,因此LIPUS
对高钙磷引起的rVSMC和rVAF钙化具有保护作用。
[关键词] 低强度脉冲超声;钙化;血管平滑肌细胞;血管成纤维细胞
[中图分类号] R329.25 [文献标志码] A [文章编号] 1007⁃4368(2021)05⁃657⁃06
doi:10.7655/NYDXBNS20210504
Low intensity pulsed ultrasound inhibits calcification of vascular smooth muscle cells and
vascular adventitial fibroblasts.
LI Junhan,QIU Ming,LU Yan,SUN Wei,KONG Xiangqing *
Department of Cardiology,the First Affiliated Hospital of Nanjing Medical University,Nanjing 210029,China
[Abstract] Objective:This study aims to investigate if low intensity pulsed ultrasound(LIPUS)has the inhibition effect of on
calcification of rat vascular smooth muscle cells(rVSMC)and rat vascular adventitial fibroblasts(rVAF)induced by hypercalcemia and
hyperphosphatemia. Methods:RVSMCs and rVAF were extracted,calcium quantification,alkaline phosphatase(ALP)activation and
Alizarin red staining to detect the different intensity of LIPUS on calcification;Western blot and real ⁃time PCR were performd to
explore the effect of LIPUS on expression of osteogenic markers. Results:LIPUS treatment significantly inhibited the calcium
quantification,ALP activation of rVSMCs and rVAF induced by hypercalcemia and hyperphosphatemia. Meanwhile,the expression of
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osteogenic markers of rVSMCs and rVAF decreased after 14 mW/cm LIPUS treatment. Conclusion:LIPUS treatment could inhibit the
expression of osteogenic markers in both rVSMCs and rVAF induced by hypercalcemia and hyperphosphatemia. Therefore,LIPUS has
protection effect on rVSMCs and rVAF calcification caused by hypercalcemia and hyperphosphatemia.
[Key words] low intensity pulsed ultrasound;calcification;vascular smooth muscle cell;vascular adventitial fibroblast
[J Nanjing Med Univ,2021,41(05):657⁃662]
血管钙化是高血压、慢性肾病、血管损伤、糖尿 性血管重构,是导致心脑血管疾病高病死率的重要
病血管病变和衰老等过程中广泛存在的一种病理 因素之一。众多研究表明血管钙化是一个与骨形
成相似的主动性、可调控的异位成骨样分化和钙磷
沉积过程。在血管组织中,间质细胞包括血管平滑
[基金项目] 江苏省高校自然科学基金面上项目(18KJB
320005) 肌细胞和成纤维细胞是发生钙化的主要细胞,它们
∗ 在各种致病因素的作用下发生成骨样分化和钙磷
通信作者(Corresponding author),E⁃mail:kongxq@njmu.edu.cn