Purple sweet potato anthocyanin regulates the proliferation, migration and invasion of breast cancer MDA-MB-231 cells through circ_0003998/miR-145 axis
DOI:10.3872/j.issn.1007-385x.2021.07.004
- VernacularTitle:紫甘薯花色苷通过circ_0003998/miR-145轴调控乳腺癌MDA-MB-231细胞的增殖、迁移和侵袭
- Author:
MA Jianping
1
,
2
;
SONG Lianchuan
2
,
3
;
ZHAO Chengmao
4
;
LYU Yong
4
;
LI Hua
2
,
5
;
WANG Xuechang
2
,
5
Author Information
1. a. Department of Breast Medicine, the Fifth People'
2. s Hospital of Qinghai Province, Xining 810000, Qinghai, China
3. b. Department of Pathology, the Fifth People'
4. a. Department of Breast Medicine,
5. Department of Radiotherapy, the Fifth People'
- Publication Type:Journal Article
- Keywords:
紫甘薯花色苷;circ_0003998;miR-145;乳腺癌;MDA-MB-231细胞;增殖;迁移;侵袭
- From:
Chinese Journal of Cancer Biotherapy
2021;28(7):672-679
- CountryChina
- Language:Chinese
-
Abstract:
[摘 要] 目的:探讨紫甘薯花色苷(purple sweet potato anthocyanin, PSPA)是否通过circ_0003998/miR-145轴调控乳腺癌MDA-MB-231细胞的增殖、迁移和侵袭。方法:选用乳腺癌MDA-MB-231细胞,将其分为对照组,200、400和800 μg/ml PSPA组,pcDNA组、pcDNA-circ_0003998组、si-NC组、si-circ_0003998组、si-circ_0003998+anti-miR-145组、PSPA+pcDNA组、PSPA+pcDNA-circ_0003998组和PSPA+anti-miR-145组。用qPCR法检测细胞中circ_0003998和miR-145的表达,CCK-8法、Transwell小室法分别检测转染前后细胞的增殖、迁移和侵袭能力,WB法检测细胞中Ki-67、MMP-2和MMP-9蛋白的表达。用双荧光素酶报告基因实验验证circ_0003998与miR-145的靶向关系。结果:与对照组比较,各剂量PSPA组MDA-MB-231细胞的增殖抑制率、miR-145表达水平均显著升高(均P<0.01),Ki-67、MMP-2、MMP-9蛋白和circ_0003998的表达水平、细胞迁移和侵袭细胞数均显著降低(均P<0.01),并呈现浓度依赖性。circ_0003998可以靶向负调控miR-145的表达。敲减circ_0003998后,MDA-MB-231细胞的增殖抑制率、miR-145表达水平显著升高,Ki-67、MMP-2和MMP-9蛋白表达水平、细胞迁移和侵袭细胞数均显著减少(均P<0.01)。共转染si-circ_0003998和anti-miR-145则可逆转敲减circ_0003998表达对MDA-MB-231细胞增殖、迁移和侵袭的抑制作用,过表达circ_0003998或抑制miR-145表达可逆转PSPA对MDA-MB-231细胞增殖、迁移和侵袭的抑制作用。结论:PSPA通过circ_0003998/miR-145轴抑制乳腺癌MDA-MB-231细胞的增殖、迁移和侵袭。
- Full text:20210704.pdf