相关实验视频
Updated: Jan 9, 2026
04:39
Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
Published on: March 17, 2023
2.4K
综合性转录组和机器学习分析揭示了在德克萨米他治疗哈西莫托甲状腺炎的关键STAT3 / GREM2信号机制
Huarong Zeng1, Yingjie Chen2, Tianchi Hu1
1Department of Endocrinology, Traditional Chinese Hospital of Xiamen, Xiamen 361001, China.
ACS omega
|December 1, 2025
概括
德克萨米他 (Dex) 通过向STAT3/GREM2通路来抑制哈西莫托甲状腺炎 (HT) 的炎症,为自身免疫性甲状腺疾病提供了一种新的治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 内分泌学 在内分泌学.
- 基因组学就是基因组学.
背景情况:
- 哈西莫托甲状腺炎 (HT) 是一种普遍存在的自身免疫性甲状腺疾病,其分子机制尚不完全理解.
- 目前对HT的治疗方法,如激素替代药物,无法解决潜在的免疫失调.
- 了解HT对免疫抑制剂的反应对于开发向疗法至关重要.
研究的目的:
- 为了研究德克萨米他 (Dex) 在哈希莫托甲状腺炎中的免疫调节作用.
- 阐明Dex在HT的治疗作用中涉及的分子途径.
- 确定潜在的生物标志物,以预测HT患者的治疗反应.
主要方法:
- 从健康的,未经治疗的HT患者和用Dex治疗的HT患者的外周血液的转录组分析 (RNA测序).
- 生物信息分析包括差异基因表达 (limma),功能丰富 (GO,KEGG,GSEA) 和机器学习 (LASSO,SVM-RFE,随机森林).
- 实验验证使用双露西法酶试验,siRNA干扰和体外细胞培养模型 (LPS诱导的Nthy-ori 3-1细胞).
主要成果:
- 德克斯治疗降低了关键炎症途径的调节,包括细胞因子信号传递和JAK-STAT轴.
- GREM2被确定为对Dex治疗的一致响应基因,并被验证为预测生物标志物.
- 机理学研究显示,Dex抑制STAT3酸化,减少GREM2表达和下游的促炎细胞因子.
结论:
- STAT3 / GREM2信号轴是德克萨米他在哈希莫托甲状腺炎中的抗炎作用的关键调解器.
- GREM2 作为一种潜在的生物标志物,用于预测HT中Dex的治疗反应.
- 这些发现为在自身免疫性甲状腺疾病中利用甲提供了机械基础.
相关概念视频
01:20Synthesis and Regulation of Thyroid Hormones
7.1K
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...
7.1K
01:20The JAK-STAT Signaling Pathway
11.8K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
11.8K
01:16TGF - β Signaling Pathway
10.4K
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...
10.4K