Genetic polymorphisms and transcription profiles associated with intracranial aneurysm: a key role for NOTCH3
| Autor: | Chao Yang, Degang Liang, Xinlong Dong, Xiaozhi Liu, Weihan Wang, Shi Chen, Weidong Yang, Mengqi Li, Xinyu Yang, Bochuan Li |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Aging Angiogenesis Cerebral arteries Single-nucleotide polymorphism Biology Bioinformatics Polymorphism Single Nucleotide Umbilical vein Transcription (biology) NOTCH3 Humans Genetic Predisposition to Disease Receptor Notch3 Gene Messenger RNA Computational Biology Intracranial Aneurysm RNA sequencing data mining Cell Biology Middle Aged Pathophysiology Female next-generation sequencing Research Paper |
| Zdroj: | Aging (Albany NY) |
| ISSN: | 1945-4589 7793-1459 |
| DOI: | 10.18632/aging.102111 |
| Popis: | Intracranial aneurysm (IA) incidence is about 1~2%. However, the specific mechanisms of IA onset and development need further study. Our objective was to discover novel IA-related genes to determine possible etiologies further. We performed next-generation sequencing on nineteen Chinese patients with familial IA and one patient with sporadic IA. We obtained mRNA expression data of 129 samples from Gene Expression Omnibus (GEO) and made statistical computing to discover differentially expressed genes (DEGs). The screened IA-related gene NOTCH3 was determined by bioinformatic data mining. We verified the IA-related indicators of NOTCH3. Association was found between IA and the NOTCH3 SNPs rs779314594, rs200504060 and rs2285981. Levels of NOTCH3 mRNA were lower in IA tissue than in control tissue, but higher in peripheral blood neutrophils from IA patients than in neutrophils from controls. Levels of NOTCH3 protein were lower in IA tissue than in cerebral artery tissue. NOTCH3 also decreased the expression of angiogenesis factors in human umbilical vein endothelial cells. Variation in NOTCH3 and alteration of its expression in cerebral artery or neutrophils may contribute to IA. Our findings also describe a bioinformatic-experimental approach that may prove useful for probing the pathophysiology of other complex diseases. |
| Databáze: | OpenAIRE |
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