腸内微生物群の機能的に活性なサブ集団の選択的分離と特徴づけのための探査可能なアプローチ
Christopher Whidbey1, Natalie C Sadler1, Reji N Nair1
1Biological Sciences Division , Pacific Northwest National Laboratory , Richland , Washington 99352 , United States.
Journal of the American Chemical Society
|December 14, 2018
まとめ
研究者は特定の生化学的活動に 責任を負う腸内微生物を特定する 新しい方法を開発し これらの微生物の機能が 個体間や 干渉時に 変化することを明らかにしました
科学分野:
- 微生物学
- 生物化学
- ホストと微生物の相互作用
背景:
- 腸内微生物は宿主の健康と生理に大きく影響します
- 宿主の生化学への特定の微生物の貢献を理解することは依然として課題です.
- 現在の方法では,in situの微生物機能の分子のレベルでの解像度が欠けていることが多い.
研究 の 目的:
- 分子レベルで腸内微生物の機能を分析するための機能ベースのアプローチを開発する.
- 生物化学的活動と 微生物や酵素の検出を組み合わせる
- 腸内の微生物の代謝活動の可塑性を調べるため
主な方法:
- β-グルキュロニダースのための選択的活動ベースのプローブを使用するプラットフォームの開発.
- 特定の酵素活性を示す微生物群の検出と分離
- 異種生物の代謝を担当する微生物と酵素の特定
主要な成果:
- β-グルキュロニダース活性による異種生物の代謝に責任を負う微生物のサブ集団を特定した.
- 腸内微生物の代謝活動が プラスティックであることが示されました
- 系統遺伝的に多様な微生物群がβ-グルキュロニダース活性に寄与することが示された.
- ゲノム推論なしに分子規模の解像度と生化学的活性を関連付けました.
結論:
- 開発されたプラットフォームは腸内の微生物の機能を正確に識別できます.
- 腸内微生物の代謝,特にβ-グルキュロニダースの活動は,ダイナミックで適応可能である.
- 菌類の多様性は 微生物のコミュニティにおける 機能的な冗長性を排除しない.
- このアプローチは,宿主-微生物群の相互作用のメカニズム的理解を進めます.
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