The uptake of Nef and DDVP by RBE4 cells were time-dependent and the steady-state of uptake appeared at 60 min and 90 min, respectively.

• RBE4细胞摄取Nef和DDVP呈时间依赖性，Nef在60 min、DDVP在90 min时摄取达稳态；