针对阿里尔碳化合物受体减弱IGF1R信号在甲状腺眼睛疾病中的作用
Elisa Roztocil1, Farha Husain1, Charkira C Patrick1
1Flaum Eye Institute, University of Rochester, Rochester, New York, USA.
概括
酸受体 (AHR) 的激活抑制了甲状腺眼病 (TED) 轨道纤维细胞中的胰岛素样生长因子1受体 (IGF1R) 信号传递. 这一发现表明AHR激活是TED的潜在治疗策略.
科学领域:
- 眼科医生 眼科 眼科
- 内分泌学 在内分泌学.
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 甲状腺眼病 (TED) 是一种自身免疫性疾病,由于轨道纤维细胞 (OF) 中胰岛素样生长因子1受体 (IGF1R) 信号的升高,导致轨道组织扩大.
- 基碳化合物受体 (AHR) 调节细胞反应,是调节TED病变的潜在目标.
研究的目的:
- 研究AHR激活在TED OFs中限制IGF1R信号的治疗潜力.
- 探索AHR激活影响TED OFs的分子机制.
主要方法:
- 在TED中对IGF1R和AHR表达的量化和OFs的控制.
- 对 OF 扩散,氨酸积累和迁移进行检测.
- RNA测序和定量PCR用于分析基因表达变化.
- 西方遮蔽用于评估AHR和IGF1R的信号通路调制.
主要成果:
- 在TED OF中,IGF1R和AHR的表达增加.
- 在TED OF中,IGF1R信号显著增强了扩散,迁移和氨酸生产.
- AHR的激活有效地抑制了IGF1R介导的增殖,迁移和氨酸合成.
- 激活AHR降低了GSK3β酸化,这是IGF1R信号传递的关键媒介.
结论:
- 激活AHR是一种有前途的治疗策略,通过抑制IGF1R信号传递来缓解TED进展.
- 通过调节GSK3β介导途径,AHR激活可能提供更广泛的治疗益处,超出直接IGF1R抑制范围.
- 这项研究为TED病理生理学和潜在的治疗点提供了新的见解.
相关概念视频
02:57Targeted 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
02:38Mitogens 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
01:27Transducer Mechanism: Enzyme-Linked Receptors
2.3K
Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Major types that are helpful drug targets include:
2.3K
01:20Synthesis and Regulation of Thyroid Hormones
4.1K
Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
4.1K
01:16TGF - β Signaling Pathway
7.2K
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...
7.2K