通过对ctDNA的纵向分析,探索卵巢癌患者的进化轨迹
Oliver Kutz1,2,3,4,5,6,7,8,9,10, Stephan Drukewitz2,3,4,6,11,12, Alexander Krüger2,3,4,6,12
1Department of Gynecology and Obstetrics, Medical Faculty and University Hospital Carl Gustav Carus, 9169 Technische Universität Dresden , Dresden, Germany.
Clinical chemistry and laboratory medicine
|April 5, 2024
概括
无细胞DNA (ctDNA) 的时间异质性揭示了卵巢癌的演变. 追踪ctDNA识别了两个不同的进化模式,有助于准复发播种克隆用于治疗.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 癌症 演化 演化 癌症 演化
背景情况:
- 卵巢癌的演变和复发动态是复杂的.
- 了解克隆异质性对于有效的治疗策略至关重要.
研究的目的:
- 分析无细胞DNA (ctDNA) 的时间异质性是否编码了卵巢癌的进化模式.
- 为了确定卵巢癌复发的不同进化模式.
主要方法:
- 在初级瘤活检和15名卵巢癌患者的纵向ctDNA样本中对275个与癌症相关的基因进行了有针对性的测序.
- 利用Illumina测序平台进行高分辨率突变分析.
主要成果:
- 主要瘤和ctDNA突变谱之间的一致性较低,TP53变异是最常见的变化.
- 根据ctDNA克隆追踪确定了两种不同的复发进化模式:持久的祖先克隆和化疗清除的克隆.
- 观察到ctDNA私有变异,其中一些表明化疗后的亚克隆扩张.
结论:
- 时间ctDNA异质性分析破译了卵巢癌的进化轨迹,即使在亚外体分辨率.
- 两种已识别的进化模式可以帮助确定复发播种克隆,用于有针对性的治疗干预.
更多相关视频
09:08Integration of Bioinformatics Approaches and Experimental Validations to Understand the Role of Notch Signaling in Ovarian Cancer
Published on: January 12, 2020
6.7K
12:42Heterotypic Three-dimensional In Vitro Modeling of Stromal-Epithelial Interactions During Ovarian Cancer Initiation and Progression
Published on: August 28, 2012
15.1K
相关概念视频
Tumor Progression
6.3K
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...
6.3K
Cancer Survival Analysis
345
Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...
345
Oogenesis
63.7K
In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
63.7K
