T型通道调节脑髓母细胞瘤,可以作为治疗点
Collin J Dube1, Michelle Lai1, Ying Zhang1
1Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, VA, 22908, USA.
Journal of neuro-oncology
|February 17, 2025
概括
T型通道在小儿大脑瘤脑髓母细胞瘤中升高. 用mibefradil针对这些道抑制了瘤生长,并在临床前模型中改善了生存率.
科学领域:
- 在瘤学瘤学.
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 脑髓母细胞瘤是一种常见且具有攻击性的儿科脑瘤.
- T型通道在各种细胞过程中发挥作用,包括癌症的进展.
研究的目的:
- 研究T型通道在脑髓母细胞瘤中的作用.
- 评估T型通道阻断剂mibefradil作为一种潜在的治疗药物.
主要方法:
- 在脑髓母细胞瘤数据集中对T型通道表达的分析 (批量和单细胞RNA-seq).
- 在体外对米贝弗拉迪尔对脑髓母细胞瘤细胞生长,活力和入侵的影响的评估.
- 蛋白质和基因共同表达网络分析以确定信号通路.
- 在orthotopic异种移植模型中评估mibefradil的疗效.
主要成果:
- 在超过30%的脑髓母细胞瘤中,T型通道的调节升高,与预后较差相关.
- 米贝弗拉迪尔治疗和基因沉默抑制了脑髓母细胞瘤细胞的生长,活力和入侵.
- 在临床前的异种移植模型中,米贝弗拉迪尔的使用减少了瘤生长和延长了生存时间.
结论:
- 这项研究提供了一个全面的T型通道在脑髓母细胞瘤的多原子特征.
- 临床前数据支持将mibefradil重新定位为脑髓母细胞瘤的治疗策略.
相关概念视频
Targeted Cancer Therapies
7.4K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.4K
Drugs that Stabilize Microtubules
2.0K
Microtubules are dynamic structures that undergo cycles of catastrophe and rescue. The microtubules play a central role in cell division by forming the spindle apparatus for segregating the chromosomes. This makes them ideal targets for regulating dividing cells in tumors and malignant cancer cells. Microtubule stabilizing drugs help stabilize the microtubule formation and promote its polymerization. Paclitaxel was the first microtubule stabilizing agent used as anticancer drug in chemotherapy...
2.0K
Ligand-Gated Ion Channel Receptor: Gating Mechanism
2.1K
Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
2.1K
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
Drugs that Destabilize Microtubules
1.9K
Microtubules are dynamic structures and can be regulated by microtubule targeting agents (MTAs). Microtubule destabilizing drugs are a class of MTAs that destabilize and prevent microtubules' polymerization. Both natural and synthetic chemicals can be found under this class of drugs. Vincristine and vinblastine, two vinca alkaloids, and colchicine were among the first to be discovered. These drugs can affect cells in various ways, either by inducing a change in cell morphology, preventing...
1.9K
Receptor Downregulation in MVBs
2.0K
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...
2.0K


