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1.江西中医药大学,南昌 330004;
2.江西中医药高等专科学校,江西 抚州 344000
郭慧玲,教授,博士生导师,从事中药制剂新剂型与新技术研究,E-mail:ghl6262@126.com
胡律江,副教授,博士,硕士生导师,从事中药炮制与中药制剂研究,Tel:0791-86363831,E-mail:380085581@qq.com
收稿日期:2018-12-29,
网络出版日期:2019-04-15,
纸质出版日期:2019-12-05
移动端阅览
郭慧玲, 胡强, 胡律江, 等. 香附烯酮在Caco-2细胞模型中的转运机制分析[J]. 中国实验方剂学杂志, 2019,25(23):110-115.
Hui-ling GUO, Qiang HU, Lyu-jiang HU, et al. Analysis of Transport Mechanism of Cyperotundone in Caco-2 Cell Model[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(23): 110-115.
郭慧玲, 胡强, 胡律江, 等. 香附烯酮在Caco-2细胞模型中的转运机制分析[J]. 中国实验方剂学杂志, 2019,25(23):110-115. DOI: 10.13422/j.cnki.syfjx.20191547.
Hui-ling GUO, Qiang HU, Lyu-jiang HU, et al. Analysis of Transport Mechanism of Cyperotundone in Caco-2 Cell Model[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(23): 110-115. DOI: 10.13422/j.cnki.syfjx.20191547.
目的:
2
考察香附烯酮在Caco-2细胞模型中的转运机制,为香附的临床应用提供实验依据。
方法:
2
通过噻唑蓝(MTT)比色法考察不同质量浓度香附烯酮对Caco-2细胞的毒性,以确定转运试验的给药浓度。以香附烯酮表观渗透系数(
P
app
)和累积转运量为评价指标,采用液相色谱-质谱联用技术(LC-MS)测定香附烯酮的含量,色谱条件为流动相乙腈(A)-水(B)梯度洗脱(0~1.5 min,35%A;1.5~2 min,35%~90%A;2~4 min,90%A;4~4.1 min,90%~35%A;4.1~8 min,35%A),流速0.3 mL·min
-1
,进样量1 μL,柱温30℃;质谱条件为电喷雾离子源(ESI),正离子模式,香附烯酮及内标物蛇床子素的检测离子分别为
m
/
z
219.2~110.9,
m
/
z
245.0~189.0。探讨了香附烯酮质量浓度、给药时间、乙二胺四乙酸(EDTA)及P-糖蛋白(P-gp)抑制剂对香附烯酮在体外细胞模型上跨膜转运的影响。
结果:
2
香附烯酮质量浓度处于3~90 mg·L
-1
时,孵育4 h内对Caco-2细胞没有明显毒性。香附烯酮在Caco-2细胞模型中的转运存在一定的浓度及时间依赖性,其
P
app
>
1×10
-6
cm·s
-1
,说明药物吸收良好,外排率处于0.5~1.5;加入细胞旁路转运抑制剂EDTA及P-gp转运体抑制剂维拉帕米后,双向
P
app
没有显著性差异。
结论:
2
香附烯酮在Caco-2细胞模型转运机制主要是被动扩散,细胞旁路转运及P-gp不参与其转运。
Objective:
2
To investigate transport mechanism of cyperotundone in Caco-2 cell model and provide experimental basis for clinical application of Cyperi Rhizoma.
Method:
2
The toxicity of cyperotundone with different concentrations to Caco-2 cells was investigated by methyl thiazolyl tetrazolium (MTT) colorimetry
in order to determine the concentration of administration in transport test. The content of cyperotundone was determined by liquid chromatography-mass spectrometry (LC-MS) with apparent permeability coefficient (
P
app
) and cumulative transport capacity as indexes. The chromatographic conditions were as following: mobile phase of acetonitrile (A)-water (B) for gradient elution (0-1.5 min
35%A; 1.5-2 min
35%-90%A; 2-4 min
90%A; 4-4.1
90%-35%A; 4.1-8 min
35%A)
the flow rate at 0.3 mL·min
-1
injection volume of 1 μL
and temperature of column at 30 ℃. The mass spectrometric conditions was electrospray ionization (ESI) and positive ion mode
the detection ions of cyperotundone and osthole (internal standard substance) were
m
/
z
219.2-110.9 and
m
/
z
245.0-189.0
respectively. Effect of concentration of cyperotundone
administration time
ethylenediamine tetraacetic acid (EDTA) and P-glycoprotein (P-gp) inhibitor on the transmembrane transport of cyperotundone on
in vitro
cell model were investigated.
Result:
2
Cyperotundone didn't have significant toxicity to Caco-2 cells at 3-90 mg·L
-1
after incubation for 4 h. The transportion of cyperotundone in Caco-2 cell model was related to the concentration and time to a certain extent
its
P
app
was higher than 1×10
-6
cm·s
-1
which indicated that absorption of cyperotundone was good
the efflux rate (ER) of cyperotundone was 0.5-1.5.There was no significant difference in bidirectional
P
app
of cyperotundone after the addition of cell bypass transport inhibitor (EDTA) and P-gp transport inhibitor (verapamil).
Conclusion:
2
The transport mechanism of cyperotundone in Caco-2 cell model is mainly passive diffusion
and cell bypass transport and P-gp are not involved in its transport.
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