1. A functional SNP rs895819 on pre-miR-27a is associated with bipolar disorder by targeting NCAM1
- Author
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Yifeng Yang, Wenwen Lu, Mei Ning, Xianhao Zhou, Xinyao Wan, Qianglong Mi, Xiaoyan Yang, Di Zhang, Yuanyuan Zhang, Biao Jiang, Lin He, Jia Liu, and Yan Zou
- Subjects
MicroRNAs ,Bipolar Disorder ,Case-Control Studies ,Medicine (miscellaneous) ,Humans ,Genetic Predisposition to Disease ,General Agricultural and Biological Sciences ,Polymorphism, Single Nucleotide ,General Biochemistry, Genetics and Molecular Biology ,CD56 Antigen - Abstract
The aberrant expression or genomic mutations of microRNA are associated with several human diseases. This study analyzes the relationship between genetic variations of miRNA and schizophrenia or bipolar disorder. We performed case-control studies for ten SNPs in a total sample of 1584 subjects. All these ten SNPs were on or near mature microRNAs. We identified the association between bipolar disorder and the T/C polymorphism at rs895819. To illustrate the function of miR-27a, we constructed several miR-27a knockout (KO) cell lines, determined candidates of miR-27a, and then verified NCAM1 as a target gene of miR-27a. Further studies revealed that the T/C polymorphism on miR-27a led to the differential expression of mature and precursor miR-27a without affecting the expression of primary miR-27a. Furthermore, the C mutation on pre-miR-27a suppresses cell migration and dopamine expression levels. Our study highlights the importance of miR-27a and its polymorphism at rs895819 in bipolar disorder.
- Published
- 2021