FABP4介导的脂质代谢促进了TNBC的进展和乳腺癌干细胞活动
1Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan, 430071, China.
Cancer letters
|September 21, 2024
概括
向FABP4,这是脂质代谢的关键调节者,显著限制了三阴性乳腺癌 (TNBC) 的进展和乳腺癌干细胞活性. 这一发现为TNBC治疗策略提供了新的途径.
科学领域:
- 在瘤学瘤学.
- 代谢研究研究 代谢研究
- 癌症干细胞生物学
背景情况:
- 代谢重编程是癌症的标志,癌症干细胞表现出不同的代谢概况.
- 三重阴性乳腺癌 (TNBC) 和相关癌症干细胞 (BCSCs) 的代谢情景仍然不太了解.
- 了解这些代谢的复杂性对于开发有效的TNBC疗法至关重要.
研究的目的:
- 描述TNBC和BCSCs的代谢概况.
- 调查脂质代谢在TNBC进展中的作用.
- 在这些代谢途径中探索潜在的治疗点.
主要方法:
- 对TNBC和BCSCs的代谢概况.
- 基因淘汰和脂肪酸结合蛋白4 (Fabp4) 的药理抑制.
- 使用MMTV-Wnt1自发TNBC和患者衍生异种移植模型的体内研究.
- 分析线粒体稳定性,脂肪酸氧化 (CPT1) 和反应性氧物种 (ROS) 生产.
- 高脂肪饮食模型来评估肥胖加速的TNBC进展.
主要成果:
- TNBC瘤,特别是BCSCs,表现出加剧的脂质代谢.
- Fabp4调解脂肪酸的吸收,对TNBC脂质代谢至关重要.
- 在多个模型中,Fabp4抑制或淘汰抑制了TNBC瘤生长.
- Fabp4影响线粒体的稳定性,CPT1介导的脂肪酸氧化和ROS的产生.
- Fabp4 缺乏抑制了肥胖加速的TNBC进展.
结论:
- TNBC和BCSC具有独特的代谢特征,尤其是强大的脂质代谢.
- Fabp4是TNBC脂质代谢和进展的重要调节者.
- 针对Fabp4介导的脂肪酸代谢,为TNBC提供了一个有前途的治疗策略.
- 这些发现为乳腺癌治疗中的代谢干预提供了基础.
相关概念视频
Cancer Stem Cells and Tumor Maintenance
4.9K
Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
4.9K
mTOR Signaling and Cancer Progression
3.8K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.8K
Tumor Progression
6.3K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
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...
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...
6.3K
The Tumor Microenvironment
6.6K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.6K


