综合性多主题分析,以确定卵巢癌风险区域背后的遗传和功能机制
Eileen O Dareng1, Simon G Coetzee2, Jonathan P Tyrer3
1Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK.
American journal of human genetics
|May 9, 2024
概括
这项研究使用全基因组关联分析确定了上皮卵巢癌 (EOC) 亚型的遗传风险因素. 它确定了特定的风险区域和基因,提高了我们对EOC发展的理解.
科学领域:
- 基因组学就是基因组学.
- 癌症遗传学 癌症遗传学
- 分子生物学分子生物学
背景情况:
- 表皮卵巢癌 (EOC) 包含具有复杂遗传基础的多种组织型.
- 识别特定的遗传风险变体对于理解EOC病因和开发向治疗至关重要.
研究的目的:
- 确定与明显的上皮卵巢癌基因型相关的可信的因果风险变异 (CCV).
- 阐明这些变异的功能意义,并确定新的EOC易感基因和位置.
主要方法:
- 在大量欧洲个体 (25,981例,105,724例对照) 上进行全基因组关联分析 (GWAS).
- 精细映射,条件分析和全转录组关联研究 (TWAS) 用于识别和描述风险变异和基因.
- 将HiChIP互动组数据与TWAS和其他功能基因组学工具集成,以识别候选基因-CCV相互作用.
主要成果:
- 确定了五个新的组织型特定的EOC风险区域,并确认了27个先前已知的区域.
- 精细地图显示了4,008个CCV,其中1,452个位于活性增强剂和促进剂等监管元素中.
- 在已知的区域发现了86个候选敏感性基因,在23个额外的基因组区域发现了32个潜在的新基因.
结论:
- 这项研究为了解EOC遗传风险提供了一个全面的功能框架.
- 确定了特定的CCV和候选基因,为推动不同EOC基因型的生物机制提供了洞察力.
- 这些发现为改善卵巢上皮癌风险预测和潜在的治疗策略铺平了道路.
相关概念视频
02:02Genomics
36.3K
Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
36.3K
01:05Cancer-Critical Genes II: Tumor Suppressor Genes
7.4K
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...
7.4K
02:21Cancers Originate from Somatic Mutations in a Single Cell
11.9K
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
11.9K