相关实验视频
Updated: Jul 12, 2025

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
Published on: April 12, 2019
miR-3195通过向SOX4抑制骨髓瘤细胞的恶性进展
Jianwei Liang1, Dandan Bao2, Zhan Ye1
1Department of Orthopedics, The First People's Hospital of Taizhou, No.218 Hengjie Road, Huangyan District, Taizhou City, 318020, Zhejiang Province, China.
在骨髓瘤 (OS) 中,microRNA miR-3195 的下调,并通过向SOX4.4来抑制癌症的进展. 这种miR-3195/SOX4通路为OS治疗提供了潜在的治疗标.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 骨髓瘤 (OS) 是一种主要的骨癌,在儿童和青少年中普遍存在.
- 微RNAs (miRNAs) 是癌症诊断和预后中的关键生物标志物.
- 在OS病原体中miR-3195的特定作用仍然在很大程度上未被描述.
研究的目的:
- 研究miR-3195在骨髓瘤中的表达水平和生物功能.
- 在OS中识别由miR-3195调节的分子标和信号通路.
- 评估OS中针对miR-3195/SOX4轴的治疗潜力.
主要方法:
- 使用基因表达综合 (GEO) 数据集 (GSE69470,GSE16088) 的差异基因表达分析.
- 定量RT-PCR验证OS组织和细胞系中的miR-3195和SOX4mRNA表达.
- 双露西法酶记者测定和生物信息学证实了miR-3195和SOX4mRNA之间的相互作用.
- 实验室功能测试 (细胞计数,殖民地形成,流细胞计量,伤口愈合,Transwell,西部斑块) 来评估miR-3195和SOX4对OS细胞行为的影响.
主要成果:
- 在OS组织和细胞系中,miR-3195显著下调,而SOX4mRNA在OS组织和细胞系中显著上调.
- 在OS组织中,miR-3195表达与SOX4表达负相关.
- 过度表达miR-3195抑制了OS细胞的增殖,迁移和入侵,同时促进了细胞亡.
- 这些效应被SOX4的上调逆转,证实miR-3195直接准SOX4并降低其表达.
结论:
- miR-3195通过抑制增殖,迁移和侵入性,并促进亡,在骨髓瘤中起到瘤抑制作用.
- 在OS的进展中,miR-3195/SOX4信号通路起着至关重要的作用.
- 针对miR-3195/SOX4轴是骨髓瘤治疗的一个有前途的治疗策略.
更多相关视频
04:25Intratibial Osteosarcoma Cell Injection to Generate Orthotopic Osteosarcoma and Lung Metastasis Mouse Models
Published on: October 28, 2021
11:15A Preclinical Mouse Model of Osteosarcoma to Define the Extracellular Vesicle-mediated Communication Between Tumor and Mesenchymal Stem Cells
Published on: May 6, 2018
相关概念视频
MicroRNAs
Loss of Tumor Suppressor Gene Functions
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
Tumor Progression
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
The Retinoblastoma Gene
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
Mesenchymal Stem Cells