使用权重基因共同表达网络分析识别与与年龄相关的黄斑变性相关的CDH18基因
Guina Liu1, Mingqi Tan2,3, Rui Liu1
1Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, China.
Frontiers in genetics
|July 31, 2024
概括
研究人员确定CDH18是与年龄相关的黄斑变性病变 (AMD) 发病的一个关键基因. 这项研究通过突出补充和凝血级联不平衡,为AMD提供了新的诊断和治疗策略.
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 与年龄相关的黄斑变性 (AMD) 是一种渐进的疾病,导致中心视力丧失.
- 对于AMD诊断的生物标志物仍然不完全理解.
- 识别关键的诊断生物标志物对于AMD管理至关重要.
研究的目的:
- 有效地识别关键的生物标志物来诊断与年龄相关的黄斑变性 (AMD).
- 阐明特定基因在AMD发病过程中的作用.
- 探索潜在的AMD诊断和治疗点.
主要方法:
- 在AMD相关数据集 (GSE50195) 上利用权重基因共表达网络分析 (WGCNA).
- 对已识别的模块基因进行了KEGG和GO丰富分析.
- 在数据集GSE29801和GSE135092上使用差异表达分析验证了枢纽基因,并在开发的dAMD和wAMD小鼠模型中通过RT-qPCR和Western blot进行了验证.
主要成果:
- 鉴定了来自"古白4"模块 (325个基因) 的9个枢纽基因,与差异表达基因 (DEGs) 交叉.
- 突出的途径包括补充和凝血级联,ECM受体相互作用和AMD中的脂肪酸代谢.
- 在干性AMD (dAMD) 和湿性AMD (wAMD) 模型中,CDH18的显著下调,通过RT-qPCR和西部斑块检测得到证实.
结论:
- CDH18被确定为与年龄相关的黄斑变性 (AMD) 病变发生的关键基因.
- 补充和凝血级联中的不平衡代表了AMD背后的潜在机制.
- 这项研究为未来的AMD诊断和治疗策略提供了新的见解.
更多相关视频
08:22A Novel Strategy Combining Array-CGH, Whole-exome Sequencing and In Utero Electroporation in Rodents to Identify Causative Genes for Brain Malformations
Published on: December 1, 2017
8.6K
09:37A Phenotyping Regimen for Genetically Modified Mice Used to Study Genes Implicated in Human Diseases of Aging
Published on: July 14, 2016
8.2K
相关概念视频
Genetic Lingo
Overview
Pedigree Analysis
Overview
Pleiotropy
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
Incomplete Dominance
Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
Epistasis Analysis
Although Mendel chose seven unrelated traits in peas to study gene segregation, most traits involve multiple gene interactions that create a spectrum of phenotypes. When the interaction of various genes or alleles at different locations influences a phenotype, this is called epistasis. Epistasis often involves one gene masking or interfering with the expression of another (antagonistic epistasis). Epistasis often occurs when different genes are part of the same biochemical pathway. The...
Human Genetics
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
