蛋白质相互作用体与基因组和分子数据的多模式集成发现了不同的RA内型
Javad Rahimikollu1,2, Priyamvada Guha Roy1,3, Akash Kishore1,2
1Center for Systems Immunology, Departments of Immunology and Computational & Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA.
Arthritis & rheumatology (Hoboken, N.J.)
|February 11, 2026
概括
使用基于网络的全基因组关联研究确定了抗周期性素抗体阳性 (CCP+) 和CCP阴性 (CCP-) 类类风湿性关节炎 (RA) 之间的遗传差异. 这些发现揭示了影响RA亚型的独特遗传风险因素,并为精准医学策略提供了信息.
科学领域:
- 遗传学 遗传学 是一个
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
背景情况:
- 类风湿性关节炎 (RA) 是一种异质的自身免疫性疾病,具有不同的临床和分子亚型,特别是抗周期性素化抗体阳性 (CCP+) 和CCP阴性 (CCP-) RA.
- 与CCP-RA患者相比,CCP+RA患者经常经历更严重的疾病和不同的治疗反应.
- 尽管已知细胞和分子变异,这些RA亚型之间的遗传差异仍未得到充分研究.
研究的目的:
- 为了研究CCP+和CCP-类风湿性关节炎 (RA) 亚型之间的研究不足的遗传差异.
- 识别新型遗传风险因素和分子途径,使这些RA患者群体区分开来.
- 利用基于网络的方法,整合多组数据进行全面的遗传分析.
主要方法:
- 使用了类风湿关节炎比较有效性研究 (RACER) 队列,包括CCP+/RF+和CCP-/RF+ RA患者.
- 采用了一种新的框架,将基于网络的全基因组关联研究 (GWAS) 与多组数据集成在一起.
- 进行遗传分区和多变量表达分析以验证已识别的基因模块.
主要成果:
- 在CCP+和CCP-RA组之间观察到遗传性的显著差异.
- 基于网络的GWAS确定了14个假定基因模块,其中许多位于HLA位点之外,解释了RA亚型之间的遗传差异.
- 四个基因模块得到了验证,突出了与表型差异相关的新型遗传位置,在正交队列中证实了功能意义.
结论:
- 基于网络的方法有效地揭示了CPC+和CPC-RA的不同遗传风险因素.
- 在外周血液中也检测到了突组织中的与疾病相关的基因模块,这表明关节特定分子程序的系统反射.
- 研究结果支持基于血液的测试在RA患者分层和开发基于独特的遗传基础的精确指导治疗策略的潜力.
相关概念视频
Genomics
40.9K
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...
40.9K
Molecular Chaperones and Protein Folding
19.9K
The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
The...
19.9K
Molecular Chaperones and Protein Folding
15.1K
15.1K
Sensory Modalities
4.0K
Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
4.0K
Genomic Imprinting and Inheritance
37.3K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
37.3K
Protein Networks
4.6K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.6K


