摘要
目的探讨柔红霉素(DNR)联合阿糖胞苷(Ara-C)和单用DNR对急性早幼粒细胞白血病(APL)细胞株NB4与另一急性髓系白血病(M2)细胞株HL-60生长抑制率、凋亡率的比较。方法用MTT法和流式细胞术分别检测NB4与HL-60细胞的生长抑制率和细胞凋亡率;采用瑞特染色法观察细胞形态。结果两组药物(DNR单药组和双药组)对NB4细胞的生长抑制率[单药组为(35.73±6.82)%,双药组为(36.75±3.82)%]、凋亡率[单药组为(22.55±3.62)%,双药组为(21.24±5.82)%]差异均无统计学意义(P〉0.05);而对HL-60细胞的抑制率[单药组为(62.31±1.80)%,双药组为(67.17±2.07)%]、凋亡率[单药组为(41.51±0.89)%,双药组为(48.05±0.92)%]的差异均有统计学意义(P值分别〈0.01和〈0.05);形态学检测显示,各组细胞形态学上均出现凋亡特征性改变。结论从细胞水平说明,DNR联合Ara—C与单用DNR对APL的疗效差异无统计学意义,且后者的临床不良反应明显轻于前者,因此支持单用DNR的治疗方案。
Objective To explore whether daunorubicin(DNR) combined with cytosine arabinoside (Ara-C) and DNR alone have similar effect on acute promyelocytic leukemia(APL) cell line NB4 and acute myeloblastic leukemia cell line HL-60 in vitro, Methods Cell morphology, cells viability, and cell apoptosis ( Annexin-Ⅴ by flow cytometry assay) were analysed, Results After incubation with DNR plus Ara-C for 24 hours, NB4 cell viability [ ( 36.75±3.82) % ] ( n = 6) and cell apoptosis rate [ (21.24 ± 5.82) % ] ( n = 3 ) did not change significantly compared to that treated with DNR alone for 24 hours [ ( 35.73 ± 6.28 ) %, (22.55±3.26)% ,respectively] (P 〉0.05). However, HL-60 cell viability [ (67. 17 ± 2.07 )% ] and cell apoptosis rate [ (48.05±0. 92)% ] changed significantly in DNR plus Ara-C group compared with DNR alone [ (63.31 ± 1.80 ) %, ( 41.51 ± 0.89) %, respectively ] ( P 〈 0.01 and 〈 0.05, respectively ). Conclusion DNR plus Ara-C and DNR alone have similar effect on NB4 cells, but have different effect on HL-60 cells.
出处
《中华血液学杂志》
CAS
CSCD
北大核心
2007年第4期247-249,共3页
Chinese Journal of Hematology