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首页> 外文期刊>Journal of neurological sciences (Turkish) >Blocking The Activity of CTGF is Capable of Preventing The Development of Early-Stage Atherosclerosis in Rat Carotid Artery
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Blocking The Activity of CTGF is Capable of Preventing The Development of Early-Stage Atherosclerosis in Rat Carotid Artery

机译:阻断CTGF的活性能够预防大鼠颈动脉早期动脉粥样硬化的发展

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Background :Although connective tissue growth factor (CTGF) has been demonstrated to contribute to the formation of atherosclerotic plaques, its divergent effects on atherosclerosis have been proposed. It is unclear if blocking the activity of CTGF may prevent the development of atherosclerosis. Methods :We established a rat carotid artery atherosclerotic model which recapitulates the early-stage atherosclerotic lesion and highly expresses CTGF. We blocked CTGF expression in atherosclerotic lesion by injecting a neutralizing anti-CTGF antibody and knocked-down CTGF expression in vascular smooth muscle cells (VSMCs) using a CTGF siRNA. Results :Blocking the activity of CTGF extensively prevented the increase in arterial stenosis rate, intima area, and tunica media, along with significant suppression of MMP-2, MMP-9, and phospho-Akt proteins in the areas of atherosclerotic lesions. CTGF siRNA suppressed the growth and migration of VSMCs in vitro. Conclusions :CTGF contributes significantly to the development of early-stage atherosclerosis. Blocking the activity of CTGF is capable of preventing the development of early-stage atherosclerosis through a mechanism involving the inactivation of Akt and suppression of MMP-2 and MMP-9. Our result suggests a novel strategy to the prevention of atherosclerosis.
机译:背景:尽管已证明结缔组织生长因子(CTGF)有助于形成动脉粥样硬化斑块,但已提出其对动脉粥样硬化的不同作用。目前尚不清楚阻断CTGF的活性是否可以阻止动脉粥样硬化的发展。方法:我们建立了大鼠颈动脉粥样硬化模型,该模型概括了早期的动脉粥样硬化病变并高表达CTGF。我们通过注射中和性抗CTGF抗体和使用CTGF siRNA敲低血管平滑肌细胞(VSMC)中的CTGF表达来阻断动脉粥样硬化病变中的CTGF表达。结果:阻断CTGF的活性可广泛阻止动脉狭窄率,内膜区域和中膜的增加,并显着抑制动脉粥样硬化病变区域的MMP-2,MMP-9和磷酸化Akt蛋白。 CTGF siRNA在体外抑制VSMC的生长和迁移。结论:CTGF有助于早期动脉粥样硬化的发展。阻断CTGF的活性能够通过涉及Akt失活和抑制MMP-2和MMP-9的机制来预防早期动脉粥样硬化的发展。我们的结果提出了一种预防动脉粥样硬化的新策略。

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