Methods By techniques of cell culture in vitro, annexin-V-FITC and propidium iodide(PI)double staining and flow-cytometry (FCM), RBE cell line was treated by paclitaxel or together with MEK inhibitor PD98059 for 24 h.

• 方法运用体外细胞培养 ,AnnexinV 异硫氰酸荧光素和碘化丙啶双染法及流式细胞技术观察紫杉醇以及与ERK上游激酶MEK抑制剂PD980 5 9合用 2 4h后RBE细胞的凋亡情况 ,运用蛋白质印迹法观察紫杉醇以及与PD980 5 9合用后RBE细胞的ERK1,ERK2和ERK的活化形式 (pERK)的表达情况。