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- W4385270807 abstract "Abstract In the present study, we report on mosaic variegated aneuploidy (MVA) syndrome with tetraploidy and predisposition to infertility in a family. Sequencing analysis identified that the CEP192 biallelic variants (c.1912C>T/p.H638Y and c.5750A>G/p.N1917S) segregated with microcephaly, short stature, limb–extremity dysplasia, and reduced testicular size, while CEP192 monoallelic variants segregated with infertility and/or reduced testicular size in the family. In 1,264 unrelated patients, variant screening for CEP192 identified a same variant (c.5750A>G/p.N1917S) and other variants significantly associated with infertility. Two lines of Cep192 mice model that are equivalent to human variants were generated. Embryos with Cep192- biallelic variants arrested at E7 because of cell apoptosis mediated by MVA/tetraploidy cells’ acumination. Mice with heterozygous variants replicated the predisposition to male infertility. Mouse primary embryonic fibroblasts with Cep192- biallelic variants cultured in vitro showed abnormal morphology, mitotic arresting, and disruption of spindle-formation. In patient epithelial cells with biallelic variants cultured in vitro, the number of cells arrested during the prophase increased because of the failure of spindle formation. Accordingly, we present a novel disease gene CEP192, which as a link for the MVA syndrome with tetraploidy and the predisposition to male infertility. In the present study, we report on mosaic variegated aneuploidy (MVA) syndrome with tetraploidy and predisposition to infertility in a family. Sequencing analysis identified that the CEP192 biallelic variants (c.1912C>T/p.H638Y and c.5750A>G/p.N1917S) segregated with microcephaly, short stature, limb–extremity dysplasia, and reduced testicular size, while CEP192 monoallelic variants segregated with infertility and/or reduced testicular size in the family. In 1,264 unrelated patients, variant screening for CEP192 identified a same variant (c.5750A>G/p.N1917S) and other variants significantly associated with infertility. Two lines of Cep192 mice model that are equivalent to human variants were generated. Embryos with Cep192- biallelic variants arrested at E7 because of cell apoptosis mediated by MVA/tetraploidy cells’ acumination. Mice with heterozygous variants replicated the predisposition to male infertility. Mouse primary embryonic fibroblasts with Cep192- biallelic variants cultured in vitro showed abnormal morphology, mitotic arresting, and disruption of spindle-formation. In patient epithelial cells with biallelic variants cultured in vitro, the number of cells arrested during the prophase increased because of the failure of spindle formation. Accordingly, we present a novel disease gene CEP192, which as a link for the MVA syndrome with tetraploidy and the predisposition to male infertility." @default.
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- W4385270807 date "2023-07-26" @default.
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- W4385270807 title "Mosaic variegated aneuploidy syndrome with tetraploid, and predisposition to male infertility triggered by mutant CEP192" @default.
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- W4385270807 doi "https://doi.org/10.1101/2023.07.22.23292907" @default.
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