Results 1 to 10 of about 902 (87)

制备人脐静脉内皮细胞和人肺腺癌细胞融合细胞的新方法

open access: yesTechnology in Cancer Research & Treatment, 2021
Purpose: Human umbilical endothelial cells (HUVECs) have been proved to be an effective whole-cell vaccine inhibiting tumor angiogenesis. In this study, we fused HUVECs with human lung adenocarcinoma cells A549 s, aiming at preparing lung cancer vaccine ...
玉峰 席
doaj   +2 more sources

外源性硫化氢通过PI3K/Akt/eNOS通路改善过氧化氢诱导的人脐静脉内皮细胞衰老 [PDF]

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2021
目的本研究拟探讨磷脂酰肌醇3激酶/蛋白激酶B/内皮型一氧化氮合酶(PI3K /Akt /eNOS)通路对硫化氢(H2S)改善内皮细胞衰老的作用。方法建立60 μmol/L过氧化氢(H2O2)诱导的人脐静脉内皮细胞(HUVEC)衰老模型;衰老模型的评估及不同浓度硫氢化钠(NaHS)预处理对衰老的作用均通过检测纤溶酶原激活物抑制剂1(PAI-1)的表达水平和衰老相关β-半乳糖苷酶(SA-β-Gal)染色阳性率来研究评估。同时通过Western blot法检测各组内皮细胞中蛋白激酶B(Akt)蛋白 ...
牛海名   +7 more
doaj   +3 more sources

抵抗素诱导脐静脉内皮细胞功能异常 [PDF]

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2006
【目的】研究抵抗素(resistin)对脐静脉内皮细胞功能的影响,以探讨抵抗素在粥样硬化性疾病中的作用及其机制。【方法】原代培养人脐静脉内皮细胞,不同浓度人抵抗素(0、50、100ng/mL)培养24h。流式细胞检测抵抗素对内皮细胞间黏附分子(ICAM-1)、血管细胞间黏附分子(VCAM-1)与活性氧簇(ROS)表达的影响;RT-PCR检测抵抗素对内皮素(ET-1)、内皮型一氧化氮合酶(eNOS)、诱导型一氧化氮合酶(iNOS)mRNA表达的影响。【结果】人脐静脉内皮细胞经人抵抗素(50ng/mL ...
李志臻   +6 more
doaj   +2 more sources

人脐静脉内皮细胞的培养和连续传代 [PDF]

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1993
本实验用新生小牛视网膜提取物作血管内皮细胞生长促进剂,成功地使人脐静脉内皮细胞在体外连续培养23代以上。细胞倍增时间平均为16.6h,细胞传代时间平均为5 d,传代比率为1:2~1:3。用ABC法证明细胞内存在Ⅷ因子相关抗原(FⅧr-Ag),透射电镜下可见胞浆内含WP(Weibe1-Palade)小体,证实所培养的细胞为血管内皮细胞。
doaj   +2 more sources

缺血缺氧环境下葡萄糖转运蛋白1对人脐静脉内皮细胞功能的调控作用 [PDF]

open access: yesZhongshan Daxue xuebao. Yixue kexue ban
目的本研究旨在探讨葡萄糖转运蛋白1(GLUT1)在缺血缺氧环境下对人类脐静脉内皮细胞(HUVECs)增殖、迁移、粘附和血管形成的影响及其调控作用。方法通过体外实验,将HUVECs置于模拟缺血缺氧的环境中(1%O2,5%CO2,94%N2),对比分析了常氧与缺血缺氧条件下HUVECs的生物学特性,通过检测细胞活性、细胞增殖能力以及利用Western blot技术比较缺血缺氧条件下GLUT1、HIF-1α、VEGFA蛋白的表达变化。进一步采用质粒转染技术过表达GLUT1,并通过划痕实验 ...
李美玲   +7 more
doaj   +5 more sources

N-Oleoylethanolamine attenuates cytokines and adhesion molecules production in TNF-α-induced human umbilical vein endothelial cells by activating PPAR-α and CB2 [PDF]

open access: yes, 2015
研究背景:动脉粥样硬化(Atherosclerosis,As)是由多个因素造成的开始于动脉内膜的一种疾病,现如今As的发病率和致死率逐渐升高,并且发病年龄年轻化。大量的流行病学调查和实验研究证明,高血脂、高血压、吸烟、糖尿病等都是与As发生相关的危险因素,但关于As发生的机制一直众说纷纭,直到1999年,ROSS等提出“As是一种慢性炎症性疾病”的观点,给As的研究带来了一个全新的方向与思路。本论文的研究就是基于这个观点,从炎症反应的角度去探索一种新的、副作用小的抗动脉粥样硬化药物。油酰乙醇胺(N ...
许旭东
core  

同型半胱氨酸对人脐静脉内皮细胞线粒体膜电位的影响 [PDF]

open access: yes
Objective:  To observe the changes of endothelial mitochondrial membrane potential(MMP)by building Hcy-induced endothelial impairment model in cultured human umbilical vein endothelial cells and to analyze the mechanism of Hcy-induced apoptosis.Methods: (
Li, Zhan-quan, Shi, Yun-qi, Wang, Hao
core   +2 more sources

DAPT attenuates ox-LDL-induced human umbilical vein endothelial cell injury [PDF]

open access: yes, 2017
目的:; 探究gamma-分泌酶抑制剂N-[N-(3,5-difluorophenacetyl)-L-alanyl]-S-phenylglycine; t-butyl ester (DAPT)在氧化低密度脂蛋白(oxidized low-density lipoprotein,; ox-LDL)损伤人脐静脉内皮细胞(human umbilical vein endothelial; cells,HUVECs)模型中的细胞保护作用及其对Notch信号通路的调控。方法:体外培养HUVECs,用ox ...
任开新   +7 more
core   +1 more source

The Role of Matrine and Mitogen-Ativated Protein Kinase/Extracellular Signal-Regulated Kinase Signal Transduction in the Inhibition of the Proliferation and Migration of Human Umbilical Veins Endothelial Cells Induced by Lung Cancer cells [PDF]

open access: yes, 2009
Background and objective Matrine, one of the major alkaloid components of the traditional Chinese medicine Sophora roots, has a wide range of pharmacological effects including anti-inflammatory activities, growth inhibition and induction of cell ...
Jinchang LU   +5 more
core  

Exosomal miR-21-5p derived from metastatic cervical cancer cells promotes cervical cancer invasion and metastasis [PDF]

open access: yes, 2022
Objective To explore the influence of paracrine function of recurring and metastatic cervical cancer tissues on the spread of cancer cells. Methods Surgical specimens (cancerous and para-cancerous tissues) were obtained from 22 patients with metastatic ...
Yang Xiang, Chen Ye, Zheng Wei, Li Hu, Xia Hong
core   +1 more source

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