来自高度转移的外体IGFBP2促进肝细胞癌转移,通过诱导表皮介质介质细胞过渡来促进肝细胞癌转移
Yongyuan Zheng1, Weibing Li1, Yansong Huang1
1Department of Hepatology and Infectious Diseases, the Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, PR China.
Gene
|March 15, 2024
概括
来自高转移性肝癌细胞的外基因组通过输送IGFBP2,激活ERK通路,从而促进较少攻击性细胞的转移. 向外体IGFBP2为肝癌患者提供了潜在的治疗策略.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 肝癌转移是死亡的主要原因.
- 外基因组调解细胞间的通信,并与癌症的进展有关.
- 了解外体驱动的转移对于开发有效的肝癌疗法至关重要.
研究的目的:
- 研究来自高度转移的肝癌细胞的外体在促进肝癌转移中的作用.
- 为了确定这些外体内负责增强转移潜力的特定分子.
- 阐明这些外体对癌细胞行为影响的分子机制.
主要方法:
- 来自患者血的外体mRNA的生物信息学分析.
- 使用传输电子显微镜 (TEM),纳米颗粒追踪分析 (NTA) 和蛋白质涂抹的外体特征.
- 功能性检测包括CCK8,Transwell,Tunel,RTqPCR,西部斑点和免疫光染色.
- 分析胰岛素类生长因子结合蛋白2 (IGFBP2) 表达及其对ERK信号通路和上皮-介质细胞转换 (EMT) 的影响.
主要成果:
- 来自高度转移的肝癌细胞 (MHCC97H) 的外体含有高水平的IGFBP2.
- 这些外体体中的IGFBP2增强了不那么激进的肝癌细胞 (Hep3B) 的转移潜力.
- 外体IGFBP2激活受体细胞中的ERK信号通路,诱导EMT.
- 血外体中IGFBP2的升高与肝癌患者的预后不佳相关.
结论:
- 来自高度转移的肝癌细胞的异位体IGFBP2作为细胞间通信的关键媒介,驱动肝癌转移.
- 通过激活ERK信号通路并促进EMT,IGFBP2促进转移.
- 向外体IGFBP2是一个有前途的治疗策略,可以改善肝癌的治疗结果和预后.
相关概念视频
Metastasis
5.5K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.5K
Receptor Downregulation in MVBs
2.1K
Multivesicular bodies (MVBs) are mature endosomes that sort ubiquitinated proteins and then fuse with lysosomes to degrade the sorted proteins. Epidermal growth factor (EGF) and its receptor (EGFR) form a complex that can be internalized through endocytosis, sorted into an MVB, and later degraded.
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
2.1K
Mitogens and the Cell Cycle
6.5K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.5K
Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal
2.2K
Erythropoietin-producing hepatocellular carcinoma receptor (Eph) and its ligand, Eph receptor-interacting protein (Ephrin) were first discovered in the human carcinoma cell line, hence the name. Ephrin-Eph interaction guides cells to reach their appropriate location in adult tissues. They also play an essential role in the immune system by helping in immune cell migration, adhesion, and activation. Based on their structure and function, Eph is divided into two classes — EphA and EphB.
2.2K


