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Cell type-specific and cross-population polygenic risk score analyses of MIR137 gene pathway in schizophrenia.


ABSTRACT: Cell type-specific pathway-based polygenic risk scores (PRSs) may better inform disease biology and improve the precision of PRS-based clinical prediction. For microRNA-137 (MIR137), a leading neuropsychiatric risk gene and a post-transcriptional master regulator, we conducted a cell type-specific gene set PRS analysis in both European and Han Chinese schizophrenia (SZ) samples. We found that the PRS of neuronal MIR137 -target genes better explains SZ risk than PRS derived from MIR137 -target genes in iPSC or from the reported gene sets showing MIR137 -altered expression. Compared with the PRS derived from the whole genome or the target genes of TCF4, the PRS of neuronal MIR137 -target genes explained a disproportionally larger (relative to SNP number) SZ risk in the European sample, but with a more modest advantage in the Han Chinese sample. Our study demonstrated a cell type-specific polygenic contribution of MIR137 -target genes to SZ risk, highlighting the value of cell type-specific pathway-based PRS analysis for uncovering disease-relevant biological features.

SUBMITTER: Yao Y 

PROVIDER: S-EPMC8283158 | biostudies-literature |

REPOSITORIES: biostudies-literature

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