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中国临床药理学与治疗学 ›› 2017, Vol. 22 ›› Issue (11): 1244-1247.

• 基础研究 • 上一篇    下一篇

丹酚酸A抗肿瘤作用及对逆转A549/MTX肿瘤多药耐药的影响

李 晖,陈 俊,徐彩虹,庞林荣,程晓春   

  1. 鄞州人民医院肿瘤放化疗中心,宁波 315040,浙江
  • 收稿日期:2017-04-19 修回日期:2017-05-26 出版日期:2017-11-26 发布日期:2017-12-11
  • 通讯作者: 陈俊,男,硕士研究生,主任医师,研究方向:肺癌、食管癌、乳腺癌等实体瘤的放化疗和靶向治疗。 E-mail:ye28795114565@163.com
  • 作者简介:李晖,男,硕士研究生,主治医师,研究方向:肺癌、食管癌、乳腺癌等实体瘤的放化疗和靶向治疗。 Tel:18352989590
  • 基金资助:

    浙江省中医药科学研究基金项目(2011ZB135)

Antitumor effect of salvianolic acid A and on its reversal of multidrug resisitance in A549/MTX tumor

LI Hui, CHEN Jun, XU Caihong, PANG Linrong, CHENG Xiaochun   

  1. Center of Tumor Radiation and Chemotherapy, People Hospital of Yinzhou, Ningbo 315040, Zhejiang, China
  • Received:2017-04-19 Revised:2017-05-26 Online:2017-11-26 Published:2017-12-11

摘要:

目的: 探究丹酚酸A的抗肿瘤作用及逆转人肺癌耐药细胞株A549/MTX肿瘤的多药耐药性的作用。方法: 将体外培养人肺癌细胞A549及A549/MTX细胞分别分为3组:空白对照组(只加培养基)、阴性对照组(细胞+培养基)及实验组(细胞悬液+ 3种化疗药)。丹酚酸A以5个浓度(4、8、16、32、64 μg/mL)对A549细胞作用,MTT法检测丹酚酸A在24、48、72 h对A549细胞的抑制作用;同时,检测甲氨喋呤(MTX)、顺铂(CDDP)、吉非替尼(GEF)这3种化疗药对A549、A549/MTX细胞株及丹酚酸A干预后的A549/MTX细胞株的半数抑制浓度(IC50) ,观察丹酚酸A对耐药细胞株的药敏性及药物逆转的作用。结果: 丹酚酸对A549细胞24 h抑制率从(9.16±3.64) %(4 μg/mL)上升至(52.93±5.21)% (64 μg/mL),当浓度增加至64 μg/mL,并分别作用24 h、48 h、72 h后,抑制率为(54.93±5.21)%、(63.83±2.74)%、(72.91±4.06)%,丹酚酸A对A549细胞具有显著的增殖抑制作用,并呈现时间-剂量依赖性。4 μg/mL丹酚酸A对A549细胞及A549/MTX细胞的生长抑制率均低于10%(9.16%,7.38%),说明对两者没有明显的毒性。经4 μg/mL丹酚酸A干预A549/MTX细胞后,甲氨喋呤对A549/MTX细胞株的IC50由(105.72±4.62) μg/mL降低至(26.13±1.36) μg/mL,逆转倍数为4.05倍;顺铂对A549/MTX细胞株的IC50由(174.92±6.86) μg/mL下降至(49.89±1.73) μg/mL,逆转倍数为3.51倍;吉非替尼对A549/MTX细胞株的IC50由(251.38±8.64) μg/mL降为(116.93±5.22) μg/mL,逆转倍数为2.15倍。与对A549细胞的作用相比较,MTX、CDDP、GEF对A549/MTX细胞作用差异均有统计学意义(P<0.01) 。经丹酚酸A干预后,三种化疗药物对A549/MTX细胞作用差异均有显著统计学意义(P<0.01)。结论:丹酚酸A能够抑制A549细胞及A549/MTX细胞的生长,此外,丹酚酸A在体外能够部分逆转A549/MTX的多药耐药性。

关键词: 丹酚酸A, 抗肿瘤, 多药耐药, 半数抑制浓度

Abstract:

AIM: To explore the anti-tumor effect of salvianolic acid A(SAA) and to research its reversal effect of multidrug resistance on A549/MTX tumor. METHODS: The human lung carcinoma cell line A549 and human lung carcinoma drug-resisitant cell line A549/MTX were cultured in vitro and were divided into three groups: blank control group (medium only), negative control group (cell suspension plus medium) and experimental group (cell suspension plus three kinds of ant-tumor drugs). SAA in five concentrations (4, 8, 16, 32, and 64 μg/mL) intervened A549 cells. The inhibition effects of SAA of 4, 8, 16, 32, and 64 μg/mL in 24 h, 48 h and 48 h on A549 cell proliferation were tested by MTT assay. The IC50 of MTX,CDDP,and GEF for the cell of A549,A549/MTX were determined by MTT assay. The IC50 of MTX,CDDP,and GEF for the A549/MTX after intervention with SAA were determined also by MTT assay. The sensitivity change and drug reversal effect of SAA before and after intervention on the A549/MTX cell line were investigated by MTT assay. RESULTS: The inhibition rate after intervention with SAA on A549 cells for 24 h was increased from (9.16±3.64)% (4 μg/mL) to (52.93±5.21)% (64 μg/mL). Accordingly, the inhibition rate of SAA were (54.93±5.21)%, (63.83±2.74)%, (72.91±4.06)% for 24 h, 48 h and 72 h as the concentration was increased to 64 μg/mL. Anti-proliferative effects of SAA on A549 cells were significant, and the inhibition rate increased with dose dependence and time dependence. Inhibition rate of SAA of 4 μg/mL on A549 and A549/MTX cell growth were 9.16% and 7.38%, respectively. Both less than 10% and no obvious toxic effect was observed, so concentration of 4 μg/mL was choosed as safety experiment dose for lung cancer drug resistant. When 4 μg/mL SAA intervened on A549/MTX cell, MTX to A549/MTX half inhibitory concentration was from (105.72±4.62) μg/mL to (26.13±1.36) μg/mL. Reverse ratio was 4.05. Half inhibitory concentration of CDDP on A549/MTX cell was from (174.92±6.86) μg/mL to (49.89±1.73) μg/mL, reverse ratio was 3.51. Half inhibitory concentration of GEF on A549/MTX cell was from (251.38±8.64) μg/mL to (116.93±5.22) μg/mL, reverse ratio was 2.15. Compared with the effect on A549 cells,MTX, CDDP, and GEF presented significant difference (P<0.01). Compared with the effect on A549/MTX cell intervened with SAA,MTX, CDDP, and GEF presented significant effect on A549/MTX cells (P<0.01). CONCLUSION: SAA can inhibit the growth of A549 cells and A549/MTX cells, and partially reverse the multidrug resistance of A549/MTX in vitro.

Key words: salvianolic acid A (SAA), anti-tumor, multi-resistant, half maximal inhibitory concentration

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