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Calphostin C抑制酶修饰低密度脂蛋白诱导的内皮-单核细胞黏附 被引量:3

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摘要 目的探讨酶修饰的低密度脂蛋白(E-LDL)诱导内皮-单核细胞黏附的机制及Calphostin C的干预效果。方法采用体外培养和直接计数法观察荷脂ECV304内皮细胞黏附能力的变化;PepTagAssay法定性内皮细胞胞膜蛋白激酶C(PKC)活性状态;RT-PCR和Western印迹检测细胞间黏附分子-1(ICAM-1)和抑制性蛋白κBα(I-κBα)表达的变化。结果E-LDL呈剂量依赖性增强内皮-单核细胞间的黏附,其活化内皮促进黏附的理想剂量为20~40μg/ml浓度。另外,E-LDL还可显著活化内皮细胞胞膜PKC,下调I-κBα的表达而增强ICAM-1的表达。应用PKC特异性抑制剂Calphostin C干预后,荷载25μg/mlE-LDL8h的ECV304内皮细胞ICAM-1表达下调而I-κBα则反相上调,黏附能力也在Calphostin C达到100nmol/L浓度时显著下调,细胞状态明显好转;且200~400nmol/LCalphostinC基本可以逆转E-LDL对内皮细胞的影响。结论内皮细胞黏附能力的强效促进剂E-LDL可能是通过PKC/NF-κB/ICAM-1发挥作用的,针对PKC靶酶的特异性抑制剂Calphostin C可以有效地抑制由E-LDL引起的内皮活化黏附增强。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2009年第13期1669-1672,共4页 Chinese Journal of Gerontology
基金 新乡医学院2007高学历重点资助课题(XXMU200706)
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参考文献9

  • 1Kataoka N,Iwaki K,Hashimoto K,et al.Measurements of endothelial cell-to-cell and cell-to-substrate gaps and micromechanical properties of endothelial cells during monocyte adhesion[J].Proc Natl Acad Sci,2002;99(24):15638-43.
  • 2王中群,袁中华,刘毅,杨永宗,万载阳,刘录山,易光辉,赵卫星,李丽华.adipophilin及蛋白激酶C在动脉粥样硬化模型中的表达[J].中华老年心脑血管病杂志,2008,10(2):133-136. 被引量:8
  • 3Marion B,Gerhard L,Thomas L,et al.Metabolic profiling of glycerophospholipid synthesis in fibroblasts loaded with free cholesterol and modified low density lipoproteins[J].J Biol Chem,2006;281(31):21869-77.
  • 4Park H,Park SG,Lee JW,et al.Monocyte cell adhesion induced by a human aminoacyl-tRNA synthetase-associated factor,p43:identification of the related adhesion molecules and signal pathways[J].J Leukoc Biol,2002;71(2):223-30.
  • 5王中群,杨永宗,王佐,任重,唐朝克,刘录山,易光辉,袁中华.蛋白激酶C活性变化对Adipophilin介导THP-1巨噬细胞脂质蓄积的影响[J].生物化学与生物物理进展,2007,34(10):1055-1064. 被引量:21
  • 6王中群,李丽华,赵卫星,赵琪,冶亚平,杨晓煜,崔静,张景航,贺国洋.蛋白激酶C活性变化影响内皮-单核细胞黏附[J].中华老年心脑血管病杂志,2008,10(7):529-532. 被引量:8
  • 7Shan-Rui H,Arash M,Katharina S,et al.Enzymatically modified LDL induces cathepsin H in human monocytes:potential relevance in early atherogenesis[J].Arterioscler Thromb Vasc Biol,2003;23(4):661-7.
  • 8Mariam K,Andreas EM,Monika H,et al.Enzymatically modified,nonoxidized LDL induces selective adhesion and transmigration of nonocytes and T-lymphocytes through human endothelial cell monolayers[J].Arterioscler Thromb Vasc Biol,1999;19(3):784-93.
  • 9何太平,莫丽儿,梁念慈.半边旗提取物5F对高转移卵巢癌细胞HO-8910PM侵袭转移的影响[J].中国药理学通报,2005,21(5):540-544. 被引量:17

二级参考文献26

  • 1袁中华,杨永宗,尹卫东,易光辉,万载阳.反义adipophilin寡核苷酸降低ACAT活性(英文)[J].生物化学与生物物理进展,2004,31(10):930-935. 被引量:11
  • 2周爱红,王荫华.阿尔茨海默病的血管性危险因素[J].中华老年心脑血管病杂志,2005,7(1):65-67. 被引量:17
  • 3Huang S, Pettaway CA, Uehara H et al.Blockade of NF-kappaB activity in human prostate cancer cells is associated with suppression of angiogenesis, invasion, and metastasis[J].Oncogene,2001,20(31):4188-97.
  • 4Perkins ND. Oncogenes, tumor suppressors and p52 NF-kappaB[J].Oncogene,2003,22(48):7553-6.
  • 5Lin A,Karin M.NF-kappaB in cancer:A marked target[J].Semin Cancer Biol,2003,13(2):107-14.
  • 6Orlowski RZ, Baldwin AS.NF-kappaB as a therapeutic target in cancer[J].Trends Mol Med,2002,8(8):385-9.
  • 7Prager GW, Breuss JM, Steurer S et al. Vascular endothelial growth factor (VEGF) induces rapid prourokinase (pro-uPA) activation on the surface of endothelial cells[J].Blood, 2004,103(3):955-62.
  • 8Huang S, RObinson JB, DeGuzman A et al. Blockade of Nuclear Factor-kappaB signaling inhibits angiogenesis and tumorigenicity of human ovarian cancer cells by suppressing expression of vascular endothelial growth factor and interleukin-8[J].Cancer Res,2000,60(19):5334-9.
  • 9Narayanaswamy M, Wright KC, Kandarpa K. Animal models for atherosclerosis, restenosis, and endovascular graft research. J Vasc Interv Radiol, 2000,11 : 5- 17.
  • 10Jaffer FA,O'Donnell CJ ,Larson MG,et al. Age and sex distribution of subclinical aortic atherosclerosis: A magnetic reso nance imaging examination of the Framingham Heart Study. Arterioscler Thromb Vasc Biol, 2002,22 : 849-854.

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