HIF-1α敲除抑制乳腺癌转移通过上皮层介质细胞过渡 Abrogation
Jinjin Zhao1,2, Haiguang Zhang3, Yaqian Liu4,2
1Clinical Laboratory, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, 453100, China.
Heliyon
|October 10, 2024
概括
准缺氧诱导因子1-alpha (HIF-1α) 有效地抑制乳腺癌肺转移. 击败HIF-1α抑制了细胞迁移和上皮细胞转化为介质细胞的过渡,提供了一个潜在的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症转移研究 癌症转移研究
背景情况:
- 肺转移是乳腺癌患者死亡的主要原因.
- 对肺转移的有效治疗选择有限.
- 缺氧诱导因子1-α (HIF-1α) 在乳腺癌肺转移中的确切作用需要进一步阐明.
研究的目的:
- 研究HIF-1α在乳腺癌肺转移中的作用.
- 评估向HIF-1α治疗肺转移的治疗潜力.
主要方法:
- 在4T1小鼠乳腺癌细胞中,使用lentiviral载体减少了HIF-1α表达.
- 进行了体外细胞迁移试验.
- 在小鼠模型中评估了体内肺转移.
- 分析了矩阵金属蛋白酶 (MMP-2,MMP-9),E-cadherin和vimentin的表达水平.
主要成果:
- HIF-1α的淘汰显著降低了4T1细胞的迁移能力.
- 在小鼠模型中,减少HIF-1α表达明显减少了肺转移.
- 通过调节E-cadherin和vimentin的表达,HIF-1α倒置抑制了表皮细胞转化为介质酶细胞的过渡 (EMT).
- 在HIF-1α中断后,MMP-2和MMP-9的表达减少.
结论:
- 在促进乳腺癌肺转移方面,HIF-1α起着至关重要的作用.
- 通过敲击准HIF-1α,通过抑制EMT和矩阵金属蛋白酶活性,有效地抑制肺转移.
- HIF-1α代表了预防和治疗乳腺癌转移的有前途的治疗标.
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
Cadherins in Tissue Organization
3.0K
The cadherins are a superfamily of cell adhesion molecules comprising over 180 variants, with specific tissues expressing a particular combination of cadherin types. Cadherins generally exhibit homophilic binding; i.e., cadherins on one cell bind to cadherins of the same or closely related type on another cell. Thus, cells of the same type have a specific affinity to bind to each other and sort themselves into clusters to form tissues.
Cell Sorting During Development
Cell sorting plays an...
Cell Sorting During Development
Cell sorting plays an...
3.0K
Mitogens and the Cell Cycle
6.4K
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...
6.4K


