第一代模拟Capicua (CIC) 的工具 - 家庭融合coprotein驱动的癌症
Cuyler Luck1,2, Kyle A Jacobs1,3, Julia Riad2,4
1Biomedical Sciences Graduate Program, University of California, San Francisco, CA, USA.
bioRxiv : the preprint server for biology
|June 4, 2025
概括
像CIC::NUTM1和ATXN1::DUX4这样的合成基因融合揭示了CIC重组如何导致不同的癌症. 这些工具有助于通过剖析融合蛋白活性来研究罕见的癌症亚型.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- CIC重组癌症的临床表现各不相同,CIC::DUX4与软组织瘤相关,CIC::NUTM1与中枢神经系统瘤相关.
- 由于研究工具有限,这些临床差异的分子基础尚不清楚.
研究的目的:
- 为了生成和验证CIC::NUTM1,CIC::LEUTX和ATXN1::DUX4融合的合成编码序列.
- 为了研究新型CIC家族融合基蛋白的结构功能关系.
主要方法:
- 为特定的CIC家族基因融合生成患者知情合成编码序列.
- 结构功能研究以验证合成序列并分析它们的生物活性.
主要成果:
- 与CIC::DUX4相比,CIC::NUTM1激活了一个不同的转录程序,由NUTM1 C终端域介导.
- CIC::LEUTX通过LEUTX交换激活序列表现出CIC目标基因的弱激活.
- ATXN1::DUX4通过ATXN1 AXH域对CIC目标基因进行上调.
结论:
- 在CIC融合中,绑定合作伙伴对蛋白的活性和下游效应产生重大影响.
- 开发的合成工具为研究CIC::DUX4.4之外的CIC-家族融合提供了一个新的资源.
- 这些工具可以详细剖析由CIC家族基因重组驱动的罕见癌症亚组.
相关概念视频
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Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Cancer-Critical Genes I: Proto-oncogenes
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...
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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,...
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