相关实验视频
Updated: Sep 15, 2025

05:39
Spontaneous Murine Model of Anaplastic Thyroid Cancer
Published on: February 3, 2023
1.7K
无塑性甲状腺癌的综合基因组分析确定了THRA的变化,THRA是细胞可塑性的潜在修饰剂
Vaishakhi Trivedi1,2, Vanita Noronha1,2, Munita Bal3
1Department of Medical Oncology, Tata Memorial Hospital, Mumbai, India.
JCO global oncology
|July 17, 2025
概括
无塑性甲状腺癌 (ATC) 显示细胞可塑性. 我们在印度的ATC患者中发现了显著的甲状腺激素受体α (THRA) 突变,这表明它在这种可塑性中发挥了作用.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 细胞生物学 细胞生物学
背景情况:
- 细胞可塑性是癌症发展的一个关键特征.
- 无塑性甲状腺癌 (ATC) 呈现无差异状态,掩盖了血统特定的标记物.
- 了解ATC可塑性的分子驱动因素至关重要.
研究的目的:
- 识别导致ATC中血统特异性细胞可塑性的遗传突变.
- 研究甲状腺激素受体α (THRA) 基因在ATC中的作用.
主要方法:
- 在68个印度ATC瘤样本上进行了全外和向测序.
- 分析的重点是识别已知的癌症基因和THRA的复发突变.
主要成果:
- 在TP53,BRAF,KRAS,NRAS,HRAS,NF1,AKT1和PIK3CA中发现了常见的突变.
- 值得注意的是,11%的印度ATC患者表现出显著的THRA突变,与白人不同.
- THRA突变与TP53和其他标志性突变同时发生,表明有协同效应.
结论:
- 在ATC患者的一个子集中,THRA突变与细胞可塑性显著相关.
- 这些发现突出了THRA作为ATC表型变化的潜在驱动因素.
相关概念视频
Synthesis and Regulation of Thyroid Hormones
5.1K
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...
5.1K
Targeted Cancer Therapies
7.8K
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...
7.8K
Cancer-Critical Genes II: Tumor Suppressor Genes
8.1K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
8.1K
Cancer-Critical Genes I: Proto-oncogenes
9.2K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
9.2K
Tumor Progression
6.5K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.5K
Combination Therapies and Personalized Medicine
5.1K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
5.1K

