AGEs对心肌微血管内皮细胞血管新生和管腔形成的影响

    Effect of advanced glycation end products on angiogenesis and tube formation of microvascular endothelial cells

    • 摘要: 目的: 观察糖基化终产物(advanced glycation end products,AGEs)对心肌微血管内皮细胞(cardiac microvascular endothelial cells,CMECs)增殖能力、迁移能力,以及血管新生和管腔形成的作用和影响。方法: 以不同浓度(100、200和400 mg/L)的AGEs作用于CMECs 48 h,分别采用MTT比色法检测细胞的增殖能力;用Transwell法检测细胞的迁移能力;用毛细血管管腔结构形成试验检测AGEs对血管新生的影响。结果: CMECs在以不同浓度(100、200及400 mg/L)的AGEs作用48 h后,MTT比色法检测显示,吸光值(分别为0.1195±0.0049、0.1422±0.0058及0.1783±0.0220)明显高于对照组(0.0955±0.0161,P<0.05,P<0.01);Transwell法检测细胞数[分别为(24.89±6.234)、(32.89±6.990)及(55.56±10.27)个]均高于对照组[(13.89±4.622)个,P<0.05,P<0.01];管样结构的长度[分别为(3.261±0.7016)、(4.737±1.129)及(6.687±1.308)mm/mm2]均高于对照组[(2.089±0.6723)mm/mm2,P<0.05,P<0.01]。结论: AGEs可以促进CMECs血管新生和管腔结构的形成,且与其浓度呈正相关。

       

      Abstract: AIM: To investigate the effects of the advanced glycation end products (AGEs) on the proliferation, migration and capillary tubule-like formation (TLS) in cardiac microvascular endothelial cells (CMECs). METHODS: CMECs were cultured with AGEs at different concentrations (100 mg/L, 200 mg/L, and 400 mg/L) for 48 h. MTT and transwell were used to detect the proliferation and migration and capillary tubule-like formation was examined to detect the angiogenesis. RESULTS: The A values of CMECs at the AGEs concentration of 100 mg/L, 200 mg/L and 400 mg/L after 48 h incubation were 0.1195±0.0049, 0.1422±0.0058 and 0.1783±0.0220, significantly higher than 0.0955±0.0161 (P<0.05, P<0.01). The migrations of CMECs (24.89±6.234, 32.89±6.990 and 55.56±10.27) were higher than 13.89±4.622 (P<0.05, P<0.01), and the tubule-like formation structures of CMECs were 3.261±0.7016, 4.737±1.129 and 6.687±1.308, higher than 2.089±0.6723 (P<0.05, P<0.01 vs. control group) in a concentration dependent manner. CONCLUSION: AGEs promote the proliferation, migration and tubule-like structure formation in a concentration-dependent manner.

       

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