首页|4T1细胞的骨播散型细胞的特征研究

4T1细胞的骨播散型细胞的特征研究

扫码查看
基于小鼠乳腺癌4T1细胞骨转移的潜能,通过6-巯基嘌呤筛选,获得骨髓中播散的4T1细胞。通过形态学观察、增殖实验、上皮细胞及间充质细胞标志物表达、转录组测序及成瘤实验等研究骨髓中播散的4T1细胞的特征。结果表明,转移至骨髓中的4T1细胞相比未转移的4T1细胞,其细胞偏圆,呈纺锤状,增殖率、迁移能力降低,上皮细胞黏附分子(epithelial cell adhesion molecule,EpCAM)、E钙黏蛋白(E-cadherin)表达降低,N钙黏蛋白(N-cadherin)表达增加,但波形蛋白(vimentin)无明显变化,具有部分上皮间充质转化特征。此外,骨髓中的4T1细胞具有较高脂肪酸代谢和较强成瘤性的特征。本研究为乳腺癌转移的基础研究奠定实验基础。本论文所有动物实验均符合中国药科大学动物伦理委员会标准。
The characteristics of bone disseminated cells of 4T1
Based on bone metastasis potential of mouse breast cancer 4T1 cells,the bone disseminated breast tumor cells 4T1(B-4T1)were acquired through the screening of 6-mercaptopurine.The characteristics of B-4T1 were studied by morphological observation,proliferation assay,expression of epithelial and mesenchymal cell markers detection,transcriptome sequencing,and tumor formation experiments.The results showed that B-4T1 was round and spindle-shaped than primary 4T1 cells,and its proliferation rate was reduced,as well as epithelial cell adhesion molecule(EpCAM)and E-cadherin expression.The transcript level of N-cadherin was increased in the B-4T1,but not vimentin,indicating that B-4T1 had partial epithelial mesenchymal transition.Besides,B-4T1 had higher fatty acid metabolism and better tumor formation capacity.This study lays the experimental foundation for the basic study of metastasis in breast cancer.All animal experiments in this paper were conducted in accordance with the standards of the Animal Ethics Committee of China Pharmaceutical University.

breast cancerbone metastasisdisseminated breast tumor cellepithelial mesenchymal transitionfatty acid metabolism

王卓、李娴静、李岩

展开 >

南京中医药大学药学院,江苏南京 210023

中国药科大学,多靶标天然药物国家重点实验室,江苏南京 211198

乳腺癌 骨转移 播散性乳腺癌细胞 上皮间充质转化 脂肪酸代谢

国家自然科学基金青年科学基金国家自然科学基金青年科学基金江苏省高等学校基础科学(自然科学)研究面上项目

820037888230480023KJB360014

2024

药学学报
中国药学会 中国医学科学院药物研究所

药学学报

CSTPCD北大核心
影响因子:1.274
ISSN:0513-4870
年,卷(期):2024.59(3)
  • 17