大黄蛰虫丸血清活性成分对血小板源生长因子介导血管平滑肌增殖的作用及其机制 |
| |
引用本文: | 刘娜,姬媛媛,路培培,刘俊田.大黄蛰虫丸血清活性成分对血小板源生长因子介导血管平滑肌增殖的作用及其机制[J].Chinese Journal of Integrated Traditional and Western Medicine,2013,19(6):432-438. |
| |
作者姓名: | 刘娜 姬媛媛 路培培 刘俊田 |
| |
摘 要: | Objective: To investigate and compare the effects and mechanisms of three functional parts of Dahuang Zhechong Pill (DHZCP), including drugs with the function of removing blood stasis and promoting blood circulation (FP-Ⅰ), drugs with the function of expelling heat and moistening dryness (FP-Ⅱ), and drugs with the function of nourishing yin and replenishing blood (FP-Ⅲ) of DHZCP, on platelet-derived growth factor (PDGF)-stimulated vascular smooth muscle cells (VSMCs) proliferation with the method of serum pharmacology. Methods: VSMCs proliferation of rat was assayed by measuring the cell viability with the 3-(4, 5-dimethylthiazol-2yl)-2, 5-diphenyltetrazolium bromide (MTT) method. DNA synthesis in VSMCs was examined by detecting 5''-bromo-2''-deoxyuridine incorporation with the immunocytochemical method. Cycle of VSMCs was evaluated with flow cytometry. Expression of cyclin D1, p27, PKCα, and phosphorylated extracellular signal regulated kinase 1/2 (ERK1/2) was quantified by the Western blotting method. Results: The FP-Ⅰ and FP-Ⅲ containing serum was capable of inhibiting PDGF-stimulated proliferation and DNA synthesis of VSMCs, arrested VSMCs in G1 phase, downregulated cyclin D1, and upregulated p27 expression (P<0.01 or P<0.05). The FP-Ⅰ and FP-Ⅲ containing serum also inhibited the PDGF-induced phosphorylation of tyrosine of ERK1/2 and PKCα expression (P<0.01 or P<0.05). Conclusions: FP-Ⅰ and FP-Ⅲ of DHZCP are able to inhibit VSMCs proliferation via interrupting PKCα-ERK1/2 signaling, modulating the expression of cell cycle proteins to result in arresting the cells in G1 phase. The inhibitory effect is mainly related to the function of removing blood stasis and promoting blood circulation, slightly to the function of nourishing yin and replenishing blood, but not to the function of expelling heat and moistening dryness.
|
Effects and Mechanisms of the Functional Parts of Dahuang Zhechong Pill Containing Serum on Platelet-Derived Growth Factor-Stimulated Proliferation of Vascular Smooth Muscle Cells |
| |
Authors: | LIU N JI Yuan-yuan LU Pei-pei and LIU Jun-tian |
| |
Institution: | 1. Department of Pharmacology, Xi’an Jiaotong University School of Medicine, Xi’an, 710061, China 2. Scientific Research and Experiment Center, the Second Affiliated Hospital, Xi’an Jiaotong University School of Medicine, Xi’an, 710061, China
|
| |
Abstract: | Objective To investigate and compare the effects and mechanisms of three functional parts of Dahuang Zhechong Pill (大黄 虫丸, DHZCP), including drugs with the function of removing blood stasis and promoting blood circulation (FP-I), drugs with the function of expelling heat and moistening dryness (FP-II), and drugs with the function of nourishing yin and replenishing blood (FP-III) of DHZCP, on platelet-derived growth factor (PDGF)-stimulated vascular smooth muscle cells (VSMCs) proliferation with the method of serum pharmacology. Methods VSMCs proliferation of rat was assayed by measuring the cell viability with the 3-(4, 5-dimethylthiazol-2yl)-2, 5-diphenyltetrazolium bromide (MTT) method. DNA synthesis in VSMCs was examined by detecting 5′-bromo-2′-deoxyuridine incorporation with the immunocytochemical method. Cycle of VSMCs was evaluated with flow cytometry. Expression of cyclin D1, p27, PKCα, and phosphorylated extracellular signal regulated kinase 1/2 (ERK1/2) was quantified by the Western blotting method. Results The FP-I and FP-III containing serum was capable of inhibiting PDGF-stimulated proliferation and DNA synthesis of VSMCs, arrested VSMCs in G phase, downregulated cyclin D1, and upregulated p27 expression (P <0.01 or P <0.05). The FP-I and FP-III containing serum also inhibited the PDGF-induced phosphorylation of tyrosine of ERK1/2 and PKCα expression (P <0.01 or P <0.05). Conclusions FP-I and FP-III of DHZCP are able to inhibit VSMCs proliferation via interrupting PKCα-ERK1/2 signaling, modulating the expression of cell cycle proteins to result in arresting the cells in G phase. The inhibitory effect is mainly related to the function of removing blood stasis and promoting blood circulation, slightly to the function of nourishing yin and replenishing blood, but not to the function of expelling heat and moistening dryness. |
| |
Keywords: | Dahuang Zhechong Pill proliferation cell cycle cyclin D1 p27 |
本文献已被 SpringerLink 等数据库收录! |
| 点击此处可从《Chinese Journal of Integrated Traditional and Western Medicine》浏览原始摘要信息 |
| 点击此处可从《Chinese Journal of Integrated Traditional and Western Medicine》下载免费的PDF全文 |
|