通过诱导IGF2BP3 / FOXO1 / JAK2 / STAT3通路介导的ROS生产,威他费林A抑制了肝细胞癌的进展
Jinhai Li1, Mengchen Ge2, Pengcheng Deng2
1Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
Immunopharmacology and immunotoxicology
|September 6, 2023
概括
维他费林A (WA) 通过增加活性氧物种 (ROS),抑制IGF2BP3和禁用JAK2/STAT3信号,从而抑制肝细胞癌 (HCC) 的生长,从而导致FOXO1.1.3的增加. 这揭示了HCC的新治疗途径.
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:
- 肝细胞癌 (HCC) 仍然是一个重大的全球健康挑战.
- 了解抗癌剂的分子机制对于开发有效的治疗方法至关重要.
- 维他费林A (WA) 是一种天然化合物,具有已证明的抗癌特性.
研究的目的:
- 阐明维他费林A (WA) 在肝细胞癌 (HCC) 中发挥抗癌作用的分子机制.
- 调查胰岛素样生长因子2与mRNA结合蛋白3 (IGF2BP3) 在WA介导的HCC抑制中的作用.
- 确定关键的信号通路,包括JAK2/STAT3和FOXO1,参与WA的行动.
主要方法:
- 基因和蛋白质表达分析使用RT-qPCR和西方布洛特.
- 细胞增殖试验 (CCK-8) 和细胞迁移试验 (Transwell).
- 研究活性氧物种 (ROS) 水平和信号通路调制.
主要成果:
- WA显著抑制了HCC细胞的增殖和迁移.
- WA抑制了IGF2BP3的表达,发现通过抑制ROS抑制HCC的生长和迁移,从而促进HCC的生长和迁移.
- IGF2BP3调节了FOXO1的表达,并阐明了它与JAK2/STAT3信号通路和ROS生产的相互作用,形成了一个反循环.
结论:
- 由WA诱导的ROS积累通过降低IGF2BP3的调节和随后关闭JAK2/STAT3信号通路来抑制HCC的进展.
- 由WA驱动的FOXO1表达的增加进一步增强了ROS的产生,并抑制了JAK2/STAT3的信号传递,形成了一个自我强化的抑制循环.
- 这些发现突出了WA在HCC中抗癌活性的一种新型分子机制,并建议针对IGF2BP3/FOXO1/JAK2/STAT3轴的潜在治疗策略.
相关概念视频
PI3K/mTOR/AKT Signaling Pathway
3.6K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
3.6K
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
TGF - β Signaling Pathway
7.4K
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
7.4K
Regulation of Angiogenesis and Blood Supply
2.6K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.6K
The JAK-STAT Signaling Pathway
9.0K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
9.0K
Interactions Between Signaling Pathways
6.3K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.3K


