8つの一般的な疾患の16,000例と3,000の共有されたコントロールの3000のCNVの全ゲノム関連研究
Nature
|April 3, 2010
まとめ
コモンコピーナンバー変種 (CNVs) は,一般的な病気に対する遺伝的感受性において役割を果たします. しかし,この研究では,現在の技術で検出可能な一般的なCNVが,これらの疾患の遺伝的基礎に大きく寄与する可能性は低いことが判明しました.
科学分野:
- 遺伝学 遺伝学とは
- ゲノミクスゲノミクスとは
- 疾病関連研究 関連研究
背景:
- コピーナンバー変種 (CNVs) は,ヒトの遺伝的多様性の重要な源である.
- CNVは,一般的な病気に対する感受性に影響を及ぼすと仮定されています.
研究 の 目的:
- 大規模な全ゲノム関連研究を行い,CNVと8つの一般的なヒト疾患との関連を調査する.
- 流行病の遺伝的構造に対する一般的なCNVの寄与を決定する.
主な方法:
- カスタム配列を使用した3,432の多形NCVの約19,000人の個体の遺伝子型決定.
- 分析には,技術的なアーティファクトの識別,アソシエーションテスト,複製の研究が含まれていました.
主要な成果:
- 偽陽性関連を引き起こす可能性のあるDNAソースの違いなどの技術的な人工物を特定しました.
- CNVと特定の疾患との関連が3箇所 (クローン病のIRGM,クローン病のHLA,リウマチ性関節炎および1型糖尿病,2型糖尿病のTSPAN8) で確認されています.
- これらのロコは以前,単一ヌクレオチドポリモルフィズム (SNP) 研究を通じて特定されており,一般的なCNVはしばしばSNPによってタグ付けされていることを示しています.
結論:
- 一般的なCNV,特に現在のプラットフォームで検出可能なCNVは,一般的なヒト疾患の主要な原動力である可能性は低い.
- 最も一般的なCNVはSNPによってよくタグ付けされており,SNPに基づく以前の研究で潜在的貢献が間接的に評価されていることを示唆しています.
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