类固醇原因子-1调节了一组核心目标基因,以促进 adrenocortical carcinoma 中的恶性瘤
João C D Muzzi1,2, Carmen Ruggiero3,4, Mabrouka Doghman-Bouguerra3,4
1Pelé Pequeno Príncipe Research Institute, Curitiba 80250-060, Brazil.
European journal of endocrinology
|July 2, 2025
概括
类固醇原因子-1 (SF-1) 基因剂量在上腺皮质癌 (ACC) 中至关重要. 这项研究协调了SF-1调节基因识别中的差异,改善了对SF-1的理解.
科学领域:
- 内分泌学 在内分泌学.
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 类固醇原因子-1 (SF-1/NR5A1) 基因剂量是其生物活性的核心.
- 在上腺皮癌 (ACC) 中,SF-1过度表达与增加的扩散,入侵,类固醇调节,免疫抑制和不良预后相关.
- 之前的研究表明,在ACC中识别SF-1-调节基因的一致性很低,这表明复制性和方法论存在问题.
研究的目的:
- 在独立研究中协调SF-1-受调节的基因识别中的差异.
- 系统地评估SF-1在ACC中的监管作用.
- 优化识别SF-1基因和了解剂量效应的方法.
主要方法:
- 从ACC TCGA数据中使用in silico SF-1 regulon重新分析现有数据集.
- 评估和优化值选择,以改善实验结果之间的重叠.
- 功能性实验,以评估不同SF-1剂量对基因表达的影响.
主要成果:
- 转录模式在各个研究中都是可比的,调和了特征和表型.
- 值优化确定了对SF-1扰动有反应的共识基因组.
- 功能实验证实SF-1剂量显著影响基因表达,并揭示了SF-1转录的负自调节.
结论:
- 在ACC中观察到的基因表达模式中,SF-1基因剂量至关重要.
- 综合性方法提高了SF-1作用的可重现性和生物解释性.
- 这项研究为协调ACC中SF-1监管的交叉研究结果提供了一个框架.
相关概念视频
02:38Mitogens and the Cell Cycle
7.0K
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...
7.0K
03:03mTOR Signaling and Cancer Progression
3.9K
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...
3.9K
01:31Hormones of the Adrenal Glands
2.9K
Adrenal hormones play a pivotal role in maintaining the body's electrolyte balance and orchestrating responses to stress, showcasing the intricate functions of the adrenal cortex and medulla.
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and...
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and...
2.9K
02:23Abnormal Proliferation
4.6K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.6K
01:27Adrenal Gland Disorders
1.9K
Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
1.9K
01:22Target Cell Response to Hormones
3.6K
Hormones intricately bind to receptors on the surface or within target cells, initiating a cascade of cellular responses.
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
3.6K