在PLCL/Gt和PLCL/Gt-REDV/MCP组中未观察到红色,因为这两个表面不包含GCs。红色出现在PLCL/Gt-REDV/MCP@GCs和PLCL/Gt-REDV/UNMCP@GCs组中,然而,具有GPQGIWGQ-C连接链的PLCL/Gt-REDV/MCP@GCs比后者表现出更多的红点,主要是因为在HUVEC触发下,更多的GCs可以从PLCL/Gt-REDV/MCP@GCs表面释放并进入细胞。对于PLCL/Gt-REDV/MCP@GCs组,HUVECs内几乎没有发现黄色点,但在细胞核附近聚集了密集的粉红色点。这些结果表明PLCL/Gt-REDV/MCP@GCs的表面可以被HUVECs触发释放GCs,并有效的介导其递送到HUVECs的细胞核中。
Red dots were not observed in PLCL/Gt and PLCL/Gt-REDV/MCP groups because these two surfaces didn’t contain GCs. Differently, red dots occurred in PLCL/Gt-REDV/MCP@GCs and PLCL/Gt-REDV/UNMCP@GCs groups. However, the former having GPQGIWGQ-C peptide linker exhibited much more red dots than the latter, because more GCs can be released from PLCL/Gt-REDV/MCP@GCs surface upon the HUVECs triggering and entered into cells. For PLCL/Gt-REDV/MCP@GCs group, few yellow dots were found inside HUVECs, but dense pink dots accumulated near the nucleus. These results indicated that the surface of PLCL/Gt-REDV/MCP@GCs can be triggered by HUVECs and mediate efficient gene delivery into the nucleus of HUVECs.