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中国临床药理学与治疗学 ›› 2020, Vol. 25 ›› Issue (12): 1330-1336.doi: 10.12092/j.issn.1009-2501.2020.12.002

• 基础研究 • 上一篇    下一篇

基于Notch 1/NF-κB/STAT3通路探讨塞来昔布逆转NK/T细胞淋巴瘤细胞阿霉素耐药的作用机制

潘战和,王馨,苏安,张鹏,纪浩南,王小梅   

  1. 厦门大学附属中山医院,厦门 361004,福建
  • 收稿日期:2020-04-01 修回日期:2020-12-07 出版日期:2020-12-26 发布日期:2021-01-04
  • 作者简介:潘战和,男,硕士,副主任医师,研究方向:肿瘤学。 Tel: 13666073681
  • 基金资助:
    福建省自然科学基金资助项目(2015J01537)

Mechanism of celecoxib reverses adriamycin resistance in NK/T cell lymphoma cells by Notch 1/NF-κB/STAT3 pathway

PAN Zhanhe, WANG Xin, SU An, ZHANG Peng, JI Haonan, WANG Xiaomei   

  1. Zhongshan Hospital of  Xiamen University, Xiamen 361004, Fujian, China
  • Received:2020-04-01 Revised:2020-12-07 Online:2020-12-26 Published:2021-01-04

摘要: 目的:观察塞来昔布(celecoxib)对淋巴瘤细胞SNK6阿霉素(adriamycin)耐药性的逆转及作用机制。方法:不同浓度的塞来昔布(10、20、40、60、80、100 μmol/L)作用于SNK6和SNK6/ADR细胞,噻唑蓝比色法(MTT)检测塞来昔布对SNK6及SNK6/ADR细胞的生长抑制率,筛选塞来昔布对SNK6/ADR的低毒浓度,计算半数抑制浓度(50% inhibitory concentration, IC50)值;采用低毒浓度塞来昔布联合不同浓度的阿霉素处理SNK6/ADR后,测得阿霉素联合塞来昔布后的 IC50,并计算逆转倍数;选择低毒浓度塞来昔布联合阿霉素处理 SNK6/ADR细胞后,应用流式细胞术测细胞凋亡情况;药物蓄积实验检测罗丹明123蓄积情况;用逆转录-聚合酶链反应(reverse transcription-polymerase chain reaction, RT-PCR) 检测Notch 1、核转录因子κB(nuclear factor kappa B, NF-κB)、信号转导子和转录激活子(signal transducer and activator of transcription 3, STAT3)mRNA表达水平;用蛋白质印迹法(Western blot)检测Notch 1、NF-κB、STAT3、P-gp蛋白表达水平。结果:不同浓度塞来昔布可明显抑制SNK6、SNK6/ADR细胞的增殖,且其抑制作用随着塞来昔布浓度的增大而增加。塞来昔布对SNK6细胞的IC50为(57.54±6.89)μg/mL,对SNK6/ADR细胞的IC50为(43.39±4.38)μg/mL,阿霉素对SNK6/ADR细胞的IC50为(7.34±0.56)μg/mL,与10 μmol/L塞来昔布联合作用后,阿霉素对SNK6/ADR细胞的IC50为(3.51±0.25)μg/mL(P<0.01),逆转倍数为2.09;阿霉素与10 μmol/L塞来昔布联合作用后,与阿霉素组比较,SNK6/ADR细胞凋亡率显著增加(P<0.01);细胞内罗丹明123的蓄积量显著增加(P<0.01);SNK6/ADR细胞内P-gp蛋白表达显著降低(P<0.01);SNK6/ADR细胞内Notch 1、NF-κB、STAT3 mRNA和蛋白表达显著降低(P<0.01)。 结论:塞来昔布可诱导NK/T细胞淋巴瘤细胞凋亡及逆转其阿霉素耐药,其可能是通过调节Notch 1/NF-κB/STAT3信号通路来实现的。

关键词: 塞来昔布, NK/T细胞淋巴瘤细胞, 阿霉素耐药, Notch 1/NF-κB/STAT3通路

Abstract: AIM: To observe the mechanism of celecoxib reversal adriamycin resistance in NK/T cell lymphoma cells.  METHODS: SNK6 and SNK6/ADR cells were treated with celecoxib of different concentrations (10, 20, 40, 60, 80, 100 μmol/L), the growth inhibition rate of SNK6 and SNK6/ADR were measured by MTT method. The IC50 and low-toxic concentration of celecoxib on SNK6/ADR cells were calculated, then SNK6/ADR cells were treated with low-toxic concentration of celecoxib combined with adriamycin, the IC50 and reverse times were calculated. The apoptosis of SNK6/ADR cells were detected by FMC. The effects of apatinib on the accumulation of rhodamine 123 in SNK6/ADR cells were investigated by flow cytometry. The mRNA expressions of Notch 1, NF-κB and STAT3 were detected by RT-PCR. The protein expressions of Notch 1, NF-κB, STAT3, P-gp were detected by Western blot. RESULTS: Different concentrations of celecoxib can significantly inhibit the proliferation of SNK6 and SNK6/ADR cells. The inhibition increased with the increase of celecoxib concentration. The IC50 of celecoxib on SNK6 and SNK6/ADR cells were (57.54±6.89) μg/mL, (43.39±4.38) μg/mL, The IC50 of adriamycin on SNK6/ADR cells was (7.34±0.56) μg/mL. After adriamycin combined with celecoxib 10 μmol/L treat SNK6/ADR cells, the IC50 on SNK6/ADR cells was (3.51±0.25) μg/mL (P<0.01), and the reverse times was 2.09. After adriamycin combined with celecoxib, compared with the adriamycin group, the apoptosis rate of SNK6/ADR cells was significantly increased (P<0.01). The intracellular accumulation of rhodamine 123 was significantly increased (P<0.01). The protein expressions of P-gp was significantly decreased (P<0.01). The mRNA and protein expressions of Notch 1, NF-κB, STAT3 were significantly decreased (P<0.01). CONCLUSION: Celecoxib can induce apoptosis and reverse adriamycin resistance in NK/T cell lymphoma cells, the mechanism may be regulating the Notch 1/NF-κB/STAT3 signaling pathway.

Key words: celecoxib, NK/T cell lymphoma cells, adriamycin resistance, Notch 1/NF-κB/STAT3

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