构建基因相关的线粒体质量调节预后模型,基于多发性骨髓瘤中大量RNA-seq分析
Xiaohui Li1, Ling Zhang1, Chengcheng Liu1
1Hematology Department, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
BioFactors (Oxford, England)
|October 24, 2024
概括
这项研究开发了一种使用线粒体质量调节基因 (MQRGs) 对多发性骨髓瘤 (MM) 患者的预后模型. 该模型有效地预测了患者的结果,并确定了关键的分子特征,改善了MM的治疗敏感性预测.
科学领域:
- 基因组学就是基因组学.
- 癌症生物学 癌症生物学
- 分子医学是分子医学.
背景情况:
- 线粒体质量调节对于多发性骨髓瘤 (MM) 治疗敏感度至关重要.
- 开发准确的预后模型对于优化MM患者护理至关重要.
研究的目的:
- 为多发性骨髓瘤 (MM) 患者开发基于线粒体质量调节基因 (MQRGs) 的预后模型.
- 确定与MM预后相关的分子特征和转录因子.
- 为了提高对MM的治疗敏感性的预测.
主要方法:
- 从 Genomic Data Commons-MM.下载并分析了大量的RNA-seq,突变和单细胞RNA-seq (scRNA-seq) 数据.
- 使用了生物信息学工具,包括 maftools,CIBERSORT,ConsensusClusterPlus,survminer,ssGSEA,limma,最小绝对收缩和选择运营商Cox,timeROC和Seurat.
- 进行突变分析,免疫透分析,无监督聚类,生存分析,风险得分建模和scRNA-seq分析.
主要成果:
- 线粒体质量调节基因 (MQRGs) 在人口和临床群体之间显示出显著的表达差异,PPARGC1A和PPARG被确定为高突变基因.
- MQRG的表达与血细胞透相关,使得MM患者可以被分为两个不同的预后集群 (C1,C2).
- 一个经过验证的RiskScore模型,来自8个差异表达基因 (DEGs),作为一个独立的预后因素,将高风险与低风险患者区分开来,并显示出明显的免疫检查点表达. 纳入RiskScore的诺米图准确预测了预后,确定PRDM1和IRF1作为关键的转录因子.
结论:
- 针对多发性骨髓瘤,开发了一种新的,有效的MQRG相关的预后模型.
- 该模型准确预测患者的预后,并确定关键的分子驱动因素和转录因子.
- 这种方法为改善MM的治疗策略和个性化医疗提供了潜力.
相关概念视频
Ribosome Profiling
3.5K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
3.5K
The Nucleolus
8.7K
The nucleolus is the most prominent substructure of the nucleus. When it was first discovered, it was considered to be an isolated organelle that forms fibrils and granules. In 1931, the relationship between the nucleolus and chromosomes was first described by Heitz. He observed that the appearance and size of nucleolus varies depending on the stage of the cell cycle. He also noticed constricted regions on different chromosomes clustered together at definite cell cycle stages. These regions,...
8.7K


