統合失調症に関連する新たな遺伝子8個を発見(Scientists discover eight new schizophrenia genes)

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2025-08-15 カーディフ大学

カーディフ大学の神経精神遺伝学センターは、統合失調症に関連する新たな8つのリスク遺伝子を発見したと発表した。Nature Communicationsに掲載された本研究は、約2万8900人の患者、10万3000人の健常者、3444家族を対象にエクソーム解析を行い、希少変異の影響を評価した。その結果、STAG1ZNF136が強い証拠とともに、SLC6A1/KLC1/PCLO/ZMYND11/BSCL2/CGREF1の6遺伝子が中程度の証拠とともに統合失調症と関連することが判明。特にSLC6A1とKLC1は、ミスセンス変異のみで関連が示された初の遺伝子であった。またSTAG1、SLC6A1、ZMYND11、CGREF1は自閉症やてんかんなど他の神経発達障害とも重なる関連を示した。本成果は疾患の遺伝的基盤理解を進め、新規治療開発の基盤を築くものである。

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全エクソームシーケンス解析により統合失調症のリスク遺伝子が同定された Whole-exome sequencing analysis identifies risk genes for schizophrenia

Sophie L. Chick,Peter Holmans,Darren Cameron,Detelina Grozeva,Rebecca Sims,Julie Williams,Nicholas J. Bray,Michael J. Owen,Michael C. O’Donovan,James T. R. Walters & Elliott Rees
Nature Communications  Published:02 August 2025
DOI:https://doi.org/10.1038/s41467-025-62429-y

統合失調症に関連する新たな遺伝子8個を発見(Scientists discover eight new schizophrenia genes)

Abstract

Rare coding variants across many genes contribute to schizophrenia liability, but they have only been implicated in 12 genes at exome-wide levels of significance. To increase power for gene discovery, we analyse exome-sequencing data for rare coding variants in a new sample of 4650 schizophrenia cases and 5719 controls, and combine these with published sequencing data for a total of 28,898 cases, 103,041 controls and 3444 proband-parent trios. We identify associations for STAG1 and ZNF136 at exome-wide significance, genes that were previously implicated in schizophrenia by the SCHEMA study at a false discovery rate of 5%. We also find associations at a false discovery rate of 5% for six genes that did not pass this statistical threshold in the SCHEMA study (SLC6A1, PCLO, ZMYND11, BSCL2, KLC1 and CGREF1). Among these genes, SLC6A1 and KLC1 are associated with damaging missense variants alone. STAG1, SLC6A1, ZMYND11 and CGREF1 are also enriched for rare coding variants in other developmental and psychiatric disorders. Moreover, STAG1 and KLC1 have fine-mapped common variant signals in schizophrenia. These findings provide insights into the neurobiology of schizophrenia, including further evidence suggesting an aetiological role for disrupted chromatin organisation.

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