浏览全部资源
扫码关注微信
网络首发:2014-06-20,
纸质出版:2014
移动端阅览
同型半胱氨酸对人外周血内皮祖细胞功能的影响[J]. 中山大学学报(医学科学版), 2014,35(3).
Effects of Homocysteine on Function of Human Peripheral Blood Progenitor Cells[J]. Journal of Sun Yat-sen University (Medical Sciences), 2014, 35(3).
同型半胱氨酸对人外周血内皮祖细胞功能的影响[J]. 中山大学学报(医学科学版), 2014,35(3). DOI:
Effects of Homocysteine on Function of Human Peripheral Blood Progenitor Cells[J]. Journal of Sun Yat-sen University (Medical Sciences), 2014, 35(3). DOI:
摘 要: 【目的】 探讨同型半胱氨酸(Hcy)对外周血内皮祖细胞(EPC)迁移、粘附能力的影响。【方法】密度梯度离心法获取单个核细胞,接种于铺有人纤维连接蛋白包被的培养皿,培养7 d后免疫荧光鉴定EPC。实验分对照组(Control,CT)、50 μmol/L腺苷(adenosine, Ade)组(A50)、50 μmol/L Hcy组(H50)、50 μmol/L Hcy+50μmol/LAde组(A50+H50)和50 μmol/L Hcy+50 μmol/L Ade+10 ng/mL血管内皮生长因子(VEGF)组(A50+H50+VEGF),不同给药组处理后检测内皮祖细胞迁移、粘附功能。各项实验都至少重复3次。【结果】Dil-acLDL(红色)和FITC-lectin(绿色)染色双阳性的细胞可鉴定为EPC。与CT组相比,Hcy、Ade可抑制EPC细胞的迁移(P < 0.05);Hcy、Ade还可抑制EPC细胞粘附到纤维连接蛋白及脐静脉内皮细胞(HUVEC)(P< 0.05)。与Hcy、Ade组相比,Hcy联合Ade可进一步显著抑制EPC细胞的迁移和粘附功能(P < 0.05)。加入VEGF可显著增加EPC细胞的迁移及粘附功能(P < 0.05)。【结论】 Hcy可显著抑制EPC的迁移粘附能力,加入VEGF后可明显改善这种抑制效应。
Abstract: 【Objective】 This study investigated the effect of moderate concentrationof homocysteine (Hcy) on the migration and adhesion function of human endothelialprogenitor cells (EPC). 【Method】 Total mononuclear cellswere isolated from human peripheral blood by Ficoll density gradient centrifugation.The cells were plated on fibronectin-coated dishes, andthen cultured in EGM-2 medium. After 7 days culture, theattached cells were identified by immunofluorescence. EPC weredivided into control group (CT), 50 μmol/L adenosine group (A50), 50 μmol/L Hcygroup (H50), 50 μmol/L Hcy+50 μmol/L Ade group (A50+H50) and 50 μmol/L Hcy + 50 μmol/L Ade + 10 ng/mL VEGF group (A50+H50+VEGF). EPC migrationand adhesion were detected. All data were from at least three independent experiments.【Result】 EPC were characterized as double positive for Dil-acLDL and FITC-lectin. The migrationand adhesion of EPC were significantly attenuated in H50and A50 group compared with the CT group (P < 0.05). Hcy combined with Ade furtherinhibited EPC migration and adhesion compared with H50 andA50 group (P < 0.05). The supplement of recombinant VEGF promoted EPC migration and adhesion (P < 0.05). 【Conclusion】 Hcy can significantlyinhibit EPC migration and adhesion, which was abolishedby the supplement of recombinant VEGF.
0
浏览量
490
下载量
CSCD
关联资源
相关文章
相关作者
相关机构