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苏州大学附属第二医院病理科,江苏 苏州 215004
住院医师,硕士。研究方向:肿瘤病理学。电话:0512-67783457。E-mail:445999886@qq.com
主任医师,硕士生导师。研究方向:肿瘤病理学。电话:0512-67783457。E-mail:shengyongzh@126.com
收稿日期:2023-01-30,
修回日期:2023-07-07,
录用日期:2023-07-07,
纸质出版日期:2023-08-15
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杨天宇,帅立雄,许竞泽,等.小檗碱通过下调METTL3表达抑制肾癌细胞侵袭和迁移的机制[J].中国药房,2023,34(15):1863-1868.
YANG Tianyu,SHUAI Lixiong,XU Jingze,et al.Mechanism of berberine inhibiting invasion and migration of renal carcinoma cells by down-regulating the expression of METTL3[J].ZHONGGUO YAOFANG,2023,34(15):1863-1868.
杨天宇,帅立雄,许竞泽,等.小檗碱通过下调METTL3表达抑制肾癌细胞侵袭和迁移的机制[J].中国药房,2023,34(15):1863-1868. DOI: 10.6039/j.issn.1001-0408.2023.15.14.
YANG Tianyu,SHUAI Lixiong,XU Jingze,et al.Mechanism of berberine inhibiting invasion and migration of renal carcinoma cells by down-regulating the expression of METTL3[J].ZHONGGUO YAOFANG,2023,34(15):1863-1868. DOI: 10.6039/j.issn.1001-0408.2023.15.14.
目的
2
探讨小檗碱(BER)对人肾癌细胞侵袭、迁移的抑制作用及可能机制。
方法
2
以人肾癌OSRC-2细胞为对象进行实验。采用alamarBlue法测定0(对照组)、25、50、75、100、125、150、175、200 μmol/L BER作用24、48 h后对OSRC-2细胞增殖的抑制作用。用0(对照组)、50、100 μmol/L BER作用于细胞48 h后,通过流式细胞术分析BER对细胞周期的影响;通过细胞划痕实验观察24、36 h时各组细胞的迁移能力;通过Transwell实验观察作用24 h时各组细胞的侵袭能力;并通过Western blot法检测上述药物作用48 h后细胞中甲基转移酶样蛋白3(METTL3)的蛋白表达,通过RNA甲基化定量试剂盒检测各组细胞内RNA的N6-甲基腺嘌呤(m6A)水平。
结果
2
与对照组比较,不同浓度BER均可显著升高OSRC-2细胞的增殖抑制率(
P
<0.01),并呈时间和浓度依赖性趋势;50、100 μmol/L BER作用48 h后可将细胞周期阻滞在G
0
/G
1
期(
P
<0.01);50、100 μmol/L BER组细胞的迁移、侵袭能力均显著降低(
P
<0.05或
P
<0.01),细胞中METTL3蛋白的表达水平和RNA的m6A水平均显著降低(
P
<0.01)。
结论
2
BER可通过下调METTL3的表达,进而抑制m6A水平,从而抑制人肾癌细胞的侵袭、迁移。
OBJECTIVE
2
To investigate the inhibitory effect of berberine (BER) on the invasion and migration of human renal carcinoma cells and its potential mechanism.
METHODS
2
Using human renal carcinoma OSRC-2 cell as object, alamarBlue assay was adopted to detect the inhibitory effects of 0 (control group), 25, 50, 75, 100, 125, 150, 175 and 200 μmol/L BER on the proliferation of OSRC-2 cell after treatment for 24 h and 48 h. After treated with 0(control group), 50, 100 μmol/L BER for 48 h, the effect of BER on cell cycle was analyzed by flow cytometry. The migration of OSRC-2 cells in 24 h and 36 h was observed by cell scratch test, and the invasion ability of OSRC-2 cells in 24 h was detected by Transwell assay. The protein expression of methyltransferase-like 3 (METTL3) was detected by Western blot after treatment for 48 h, and RNA methylation quantification kit was used to detect the levels of N6-methyladenosine (m6A) in OSRC-2 cells.
RESULTS
2
Compared with control group, BER at different concentrations could significantly decrease the survival rate of OSRC-2 cells (
P
<0.01), and showed a dose-dependent and time-dependent manner. After 48 h of BER treatment at 50, 100 μmol/L, the cell was arrested in G
0
/G
1
phase (
P
<0.01). Compared with control group, the migration and invasion abilities of cells in 50, 100 μmol/L BER group were significantly decreased (
P
<0.05 or
P
<0.01); the protein expression of METTL3 and the level of m6A in RNA were significantly decreased(
P
<0.01).
CONCLUSIONS
2
BER can inhibit level of m6A by down-regulating the expression of METTL3, thereby inhibiting the invasion and metastasis of human renal carcinoma cells.
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