相关实验视频
Updated: Jun 3, 2025
08:01
The Soft Agar Colony Formation Assay
Published on: October 27, 2014
111.4K
瘤生物学中的Wnt信号通路
Sabina Iluta1, Madalina Nistor2, Sanda Buruiana3
1Department of Hematology, Iuliu Hatieganu University of Medicine and Pharmacy, 400347 Cluj Napoca, Romania.
Genes
|January 8, 2025
概括
癌症干细胞 (CSCs) 通过通过Wnt/β-catenin.catenin等途径抵抗治疗来驱动复发和转移. 针对这些途径提供了新的治疗策略,防止癌症复发和耐药性.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症干细胞研究研究
背景情况:
- 癌症复发和转移是患者生存的重大障碍,主要是由癌症干细胞 (CSC) 驱动的.
- CSCs具有自我更新和瘤生成特性,有助于治疗耐药性.
- Wnt/β-catenin信号通路与CSC功能,胚胎发生和组织稳态有关,其失调与癌症进展有关.
研究的目的:
- 探索CSCs和Wnt/β-catenin通路在抗癌治疗中的作用.
- 调查开发针对CSC和散装瘤的向治疗的挑战和潜力.
- 检查Wnt抑制剂在克服CSC介导药物耐药性的治疗潜力.
主要方法:
- 对癌症干细胞,Wnt信号传递和治疗抵抗机制的当前文献的综述.
- 在癌症中分析了Wnt,Hedgehog和Notch信号通路之间的交叉声.
- 评估新兴的Wnt抑制剂作为治疗剂.
主要成果:
- Wnt通路的失调是瘤发生,转移和耐药性的关键因素.
- Wnt与其他信号网络之间的复杂交叉通话使得针对性治疗的开发变得复杂.
- Wnt 抑制剂在调节这些途径以对抗CSC和抗性方面表现有前途.
结论:
- 准CSC和Wnt通路对于克服癌症复发和转移至关重要.
- 开发调节Wnt信号的疗法,尽管存在交叉通话挑战,但提供了一个有前途的途径.
- 温特抑制剂代表了破坏CSC和逆转治疗耐药机制的潜在策略.
相关概念视频
02:54Canonical Wnt Signaling Pathway
8.7K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
8.7K
01:41Non-Canonical Wnt Signaling Pathways
7.2K
Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
7.2K
03:03mTOR Signaling and Cancer Progression
3.7K
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...
3.7K
01:19Interactions Between Signaling Pathways
6.2K
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...
6.2K
02:17The Tumor Microenvironment
6.5K
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...
6.5K
02:07Tumor Progression
6.2K
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...
6.2K