Tumor suppressor berberine binds VASP to inhibit cell migration in basal-like breast cancer.

Tumor suppressor berberine binds VASP to inhibit cell migration in basal-like breast cancer.
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肿瘤抑制因子小檗碱结合 VASP 抑制基底样乳腺癌细胞迁移

DOI:
10.18632/oncotarget.9968
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发表时间:
2016-07-19
期刊:
影响因子:
--
通讯作者:
Zhang J
Zhang J
中科院分区:
其他
文献类型:
--
作者:
Su K;Hu P;Wang X;Kuang C;Xiang Q;Yang F;Xiang J;Zhu S;Wei L;Zhang J

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小檗碱是一种用于中药的植物源化合物,已被证明可以抑制乳腺癌细胞的增殖和迁移。另一方面,血管舒张刺激磷蛋白(VASP)促进肌动蛋白丝伸长和细胞迁移。我们之前表明 VASP 在高迁移率乳腺癌细胞中过度表达。在这里,我们研究了小檗碱的抗肿瘤作用是否是通过结合基底样乳腺癌中的 VASP 介导的。我们的结果表明,小檗碱抑制 MDA-MB-231 细胞的增殖和迁移以及 MDA-MB-231 裸鼠异种移植物中的肿瘤生长。我们还表明,小檗碱与 VASP 结合,诱导其二级结构发生变化并抑制肌动蛋白聚合。我们的研究揭示了小檗碱抑制基底样乳腺癌细胞增殖和迁移的机制,强调了小檗碱作为潜在辅助治疗剂的用途。
Berberine is a plant-derived compound used in traditional Chinese medicine, which has been shown to inhibit cell proliferation and migration in breast cancer. On the other hand, vasodilator-stimulated phosphoprotein (VASP) promotes actin filament elongation and cell migration. We previously showed that VASP is overexpressed in high-motility breast cancer cells. Here we investigated whether the anti-tumorigenic effects of berberine are mediated by binding VASP in basal-like breast cancer. Our results show that berberine suppresses proliferation and migration of MDA-MB-231 cells as well as tumor growth in MDA-MB-231 nude mouse xenografts. We also show that berberine binds to VASP, inducing changes in its secondary structure and inhibits actin polymerization. Our study reveals the mechanism underlying berberine's inhibition of cell proliferation and migration in basal-like breast cancer, highlighting the use of berberine as a potential adjuvant therapeutic agent.
DOI: 10.1038/onc.2016.47
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