HL - 60 cells transmigrating the BBB model made up of HBMEC are higher and higher as time went by at 8h,16h,24h,32h and 40h.

• 在8h，16h，24h，犯h和40h穿过由正常脑微血管内皮细胞构建的血脑屏障模型的HL一60细胞数随时间的增加而呈现逐渐升高的趋势。