上腺体信号会影响乳腺癌细胞中的蛋白质反应
Manuel Carrasco1, Ole Vidhammer Bjørnstad1, Heidrun Vethe1
1Centre for Cancer Biomarkers CCBIO, Department of Clinical Medicine, Section for Pathology, University of Bergen, Bergen, Norway.
Frontiers in neuroscience
|October 3, 2025
概括
压力激素诺拉德林对乳腺癌的进展产生影响,基底类瘤显示出大小和入侵的显著变化. 类似于光的乳腺癌细胞表现出较少的反应,突出显示了癌症中亚型特定的信号.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 乳腺癌表现出分子异质性,使治疗复杂化.
- 上腺体信号传递受压力荷尔蒙如诺亚上腺素的影响,与癌症的进展有关.
- 瘤微环境的相互作用显著影响癌细胞的行为和药物反应.
研究的目的:
- 研究上腺素调节对基底类和光类乳腺癌球体的作用.
- 为了比较3D球形模型与传统2D培养的有效性,用于研究乳腺癌.
- 为了阐明子型特异性对乳腺癌中上腺激素信号的反应.
主要方法:
- 使用3D球形培养系统,具有基底样 (MDA-MB-231,BT549) 和光样 (T47D,MCF7) 乳腺癌细胞系.
- 服用诺亚上腺素和普拉诺洛尔 (β-上腺素受体抗剂) 来评估上腺素路径调节.
- 进行蛋白质组分析以确定亚型特定的分子变化.
主要成果:
- 诺拉上腺素治疗减少了MDA-MB-231细胞中的球状体大小,入侵和EMT标志物,并通过醇部分逆转.
- 类似Luminal的球体由于ADRB2表达低,对上腺激素调节的反应有限.
- 蛋白质组学揭示了不同的亚型特定路径变化,特别是在增殖,EMT和基础类球体的代谢中.
结论:
- 上腺体信号通路在乳腺癌亚型中甚至在子组内都显示出显著的异质性.
- 3D球形模型为研究乳腺癌信号提供了一个更具生理相关性的平台.
- 结果提供了对上腺体信号的亚型特定反应的见解,为潜在的治疗策略提供了信息.
相关概念视频
mTOR Signaling and Cancer Progression
4.6K
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...
4.6K
Autocrine Signaling
52.1K
Autocrine signaling is one of the many signaling mechanisms that function inside multicellular organisms to carry out intercellular communication. In this type of signaling mechanism, the same cell that secretes an extracellular signaling molecule also expresses the receptors to bind and respond to that signaling molecule.
Autocrine Signaling in Macrophages
Under normal physiological conditions, autocrine signaling is essential for maintaining homeostasis. This process is well characterized in...
Autocrine Signaling in Macrophages
Under normal physiological conditions, autocrine signaling is essential for maintaining homeostasis. This process is well characterized in...
52.1K
Mitogens and the Cell Cycle
7.7K
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...
7.7K
Intracellular Signaling Affects Focal Adhesions
3.5K
Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
Some...
3.5K
Interactions Between Signaling Pathways
7.2K
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...
7.2K
Adrenergic Receptors: β Subtype
3.5K
β-adrenoceptors have varied sensitivities towards adrenaline, noradrenaline, and isoprenaline. The order of agonist potency is as follows:
Isoprenaline > Adrenaline > Noradrenaline
Neurotransmitter binding to these receptors causes activation of adenylyl cyclase resulting in increased concentrations of cAMP and modulation of calcium ion channels within the cell. They are further classified into β1, β2, and β3 subtypes.
β1-adrenoceptors: β1-adrenoceptors...
Isoprenaline > Adrenaline > Noradrenaline
Neurotransmitter binding to these receptors causes activation of adenylyl cyclase resulting in increased concentrations of cAMP and modulation of calcium ion channels within the cell. They are further classified into β1, β2, and β3 subtypes.
β1-adrenoceptors: β1-adrenoceptors...
3.5K


