基因型驱动的lncRNA表达变异是导致高度血清性卵巢癌的根源
Mingming Lu1, Yanan Chu2, Ziwei Zhu3
1Department of Nephrology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Children and Adolescents' Health and Diseases, Hangzhou, Zhejiang 310052, China; Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, Zhejiang 311121, China; National Genomics Data Center, China National Center for Bioinformation, Beijing 100101, China; China National Center for Bioinformation, Beijing 100101, China; Beijing Institute of Genomices, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
这项研究揭示了长非编码RNAs (lncRNAs) 在高度血清性卵巢癌 (HGSOC) 易感性中发挥着重要作用,为早期检测和治疗提供了潜在的新途径. 影响lncRNA表达的遗传变异是HGSOC的关键驱动因素.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 高度血清性卵巢癌 (HGSOC) 迫切需要新的早期诊断策略和治疗目标.
- 之前在HGSOC中进行的全基因组关联研究 (GWAS) 大大忽略了长非编码RNA (lncRNAs) 的功能影响.
研究的目的:
- 识别涉及HGSOC易感性的新型因果基因,特别是lncRNAs.
- 探索这些发现对早期HGSOC检测和治疗开发的潜力.
主要方法:
- 在348个HGSOC瘤样本中进行基因型-组织表达分析,以评估对蛋白质编码基因 (PCG) 和lncRNAs的影响.
- 贝叶斯协同分析以优先考虑HGSOC瘤和全血中的因果基因.
- 单核全长转录组测序 (snRandom-seq) 以在单细胞水平上映射lncRNA表达.
- 在体外测试以功能验证lncRNA CRHR1-IT1在HGSOC中的作用.
主要成果:
- 遗传变异显著影响HGSOC中PCG和lncRNAs的表达.
- 与PCG相比,lncRNAs对HGSOC遗传性贡献的比例更大.
- 优先考虑了22个高保证性因果基因,包括ARL17A和CRHR1-IT1.
- 发现CRHR1-IT1表达的升高在体外促进了亡并抑制了HGSOC细胞的生长.
结论:
- 在HGSOC中,基因变异在PCG和lncRNA中起着重要的调节作用.
- 这些发现加深了对HGSOC易受性的理解.
- 这些结果可能会指导未来的生物标志物发现和对HGSOC的免疫相关治疗策略.
更多相关视频
10:27Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
09:08Integration of Bioinformatics Approaches and Experimental Validations to Understand the Role of Notch Signaling in Ovarian Cancer
Published on: January 12, 2020
相关概念视频
lncRNA - Long Non-coding RNAs
lncRNA - Long Non-coding RNAs
MicroRNAs
MicroRNAs
Cancer-Critical Genes I: Proto-oncogenes
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...
Cancer-Critical Genes II: Tumor Suppressor Genes
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...
