SOX2是小鼠NUT癌瘤瘤发生的可用调节器
Chenxiang Luo1,2,3, Dejin Zheng1,2, Ahmed Elnegiry1,2,4
1Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, East Lansing, MI, USA.
Life science alliance
|November 20, 2025
概括
对于NUT癌 (NC) 的发展或进展,SOX2并非必不可少. 这项研究表明,BRD4::NUTM1驱动了独立于SOX2的NC瘤发生,这表明了新的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症遗传学 癌症遗传学
背景情况:
- 核突瘤 (NC) 是一种由NUTM1融合瘤基因驱动的侵袭性癌症.
- BRD4::NUTM1激活转录因子,促进状细胞癌表型.
- SOX2是被提议的关键驱动因素,但它在NC中的体内作用尚未研究.
研究的目的:
- 调查SOX2在NUT癌症发病和进展中的体内作用.
- 确定SOX2是否对于维持NC表型至关重要.
主要方法:
- 利用了人类NC的基因工程小鼠模型.
- 在NC瘤发生过程中执行了SOX2的特异性条件删除.
- 分析了瘤组织学,基因表达 (RNA测序) 和瘤驱动状态.
主要成果:
- SOX2对于NC的启动和进展是不可或缺的.
- 缺乏SOX2的瘤保持了NC组织学特征和关键瘤原因驱动因素 (BRD4::NUTM1,MYC,TP63).
- 缺少SOX2的瘤的转录变化很小,影响了新陈代谢,但没有影响核心瘤计划.
结论:
- SOX2在NUT癌瘤瘤发生过程中并不普遍需要.
- BRD4::NUTM1驱动的NC是独立于SOX2.
- 治疗策略应侧重于BRD4::NUTM1及其依赖性.
相关概念视频
Pleiotropy
43.1K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
43.1K
Cancer-Critical Genes II: Tumor Suppressor Genes
9.3K
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...
9.3K
Mouse Models of Cancer Study
6.4K
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
6.4K
Loss of Tumor Suppressor Gene Functions
5.8K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
5.8K
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


