剪接特定的转录组全方位关联揭示了精神分裂症的遗传机制
Jonatan L Hervoso1, Kofi Amoah1, Jack Dodson1
1Bioinformatics Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA 90095, USA.
American journal of human genetics
|June 26, 2024
概括
这项研究引入了SpliTWAS,这是一种通过RNA拼接将遗传变异与疾病联系起来的新方法. 它确定了与精神分裂症风险相关的特定的外因子拼接事件,为其遗传基础提供了新的见解.
科学领域:
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
- 神经科学是一个神经科学.
背景情况:
- RNA拼接对于将遗传变异与疾病联系起来至关重要.
- 不调节的RNA拼接与神经和精神疾病有关,特别是精神分裂症.
- 直接将改变的拼接与复杂的特征联系起来仍然具有挑战性.
研究的目的:
- 开发和应用一种新的方法,即Spliced-Transcriptome-Wide Associations (SpliTWAS),用于将拼接数据与全基因组关联研究相结合.
- 识别与精神分裂症 (SCZ) 相关的基因和特定的外因子拼接事件.
主要方法:
- 应用SpliTWAS到SCZRNA测序数据集 (BrainGVEX,CommonMind) 中.
- 使用了FOCUS精细映射方法的外星级扩展.
- 分析了变体对RNA结合蛋白位点的影响.
主要成果:
- 在两个数据集中确定了137个和88个特征相关的外原体 (在84个和67个基因中).
- 相关基因丰富了神经元功能,发育和与SCZ相关的免疫反应途径.
- 确定了36个基因和48个外因子作为SCZ的潜在原因,包括VPS45和APOPT1.1.
- 发现SpliTWAS变种可以破坏影响拼接的RNA-蛋白相互作用.
结论:
- 替代拼接在精神分裂症的遗传基础上发挥着重要作用.
- 分TWAS是研究复杂特征的遗传结构的一个有价值的方法.
- 特定的外型子剪接事件可能与疾病有关,从而逃避标准基因表达分析的检测.
关键词:
在RNA结合蛋白质中的RNA结合蛋白.在TWAS中,TWAS是TWAS.替代性RNA拼接是一种替代性的RNA拼接.精细地图绘制 精细地图绘制遗传变异 遗传变异 遗传变异神经系统疾病 神经系统疾病更多相关视频
相关概念视频
Genome-wide Association Studies-GWAS
13.3K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
13.3K
RNA Splicing
56.3K
Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
56.3K
Alternative RNA Splicing
21.1K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
21.1K
Biological Causes of Schizophrenia
54
Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
54
Pre-mRNA Processing: RNA Splicing
5.2K
5.2K
Chromatin Structure and RNA Splicing
2.7K
2.7K


