医療と研究データを組み合わせて発見された28の遺伝疾患の証拠
Joanna Kaplanis1, Kaitlin E Samocha1, Laurens Wiel2,3
1Human Genetics Programme, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK.
Nature
|October 15, 2020
まとめ
研究者たちは3万1,000以上の家族からのエクソームデータを分析し 28の新規遺伝子を含めて 28の発達障害に関連した遺伝子を特定しました 病気に関連した遺伝子は まだまだ発見されていません
科学分野:
- 遺伝学
- 発達生物学
- バイオ情報学
背景:
- タンパク質をコードする遺伝子のデノボ変異は,発達障害の原因として認識されています.
- 既知の疾患に関連した遺伝子は,これらの疾患で観察された過剰なde novo変異のほんの一部を説明します.
- 新種の遺伝子を特定することは,発達障害の病因を全面的に理解するために不可欠です.
研究 の 目的:
- 発達障害に関連した 未知の遺伝子を特定する.
- 遺伝子特異的な de novo 変異の濃縮を検出するための統計的方法を開発し,適用する.
- ヒトの発達障害に 関わる遺伝子のカタログを拡大する
主な方法:
- 31,058の親子トリオからの健康と研究エクソーム配列データを統合した.
- 新しい変異の濃縮を特定するためのシミュレーションベースの統計テストの開発.
- 発達障害のある個体における遺伝子特異変異率の分析
主要な成果:
- 285の重要な関連遺伝子が特定され 28の遺伝子が発達障害に関連付けられました
- タンパク質をコードする遺伝子のデノボ変異の 過剰な発生は未だに解明されていない.
- モデリングは1,000以上の発達障害遺伝子が未発見であり,潜在的に浸透性が低いことを示しています.
結論:
- この研究は,発達障害に関連する遺伝子のリストを大幅に拡張しています.
- 発達障害の遺伝子の多くはまだ特定されていないため,さらなる研究が必要である.
- 臨床診断エクソームデータへのアクセスは,発達障害の遺伝子マップを完成させるために不可欠です.
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