標的配列キャプチャ (TSC) の適用は,抗体産生細胞系統の遺伝的特徴化のためである
Sofie A O'Brien1, Jake T Leinas1, Jodi Grantham1
1Bioprocess Research and Development, Pfizer Inc., Bothell, Washington, USA.
Biotechnology journal
|February 12, 2026
まとめ
次世代配列解析 (NGS) は,発達の初期に生理療法用生産細胞系の遺伝的安定性を評価するための強力な方法を提供します. このアプローチは,遺伝的比較性を確保し,商業的製造のための細胞系選択に関連するリスクを軽減します.
科学分野:
- バイオテクノロジー バイオテクノロジー
- 分子生物学は分子生物学である.
- バイオ医薬品製造 バイオ医薬品製造
背景:
- 規制機関は,バイオセラピーの商用ライセンスのための生産細胞ラインの遺伝的比較を義務付けています.
- 早期の細胞系開発 (CLD) は,遺伝的特徴化のための良好な製造プロセス (GMP) 細胞バンクが利用可能になる前に始まります.
- CLDの初期段階における遺伝的安定性を評価することは,不安定な細胞系統の選択を防ぐために極めて重要です.
研究 の 目的:
- 細胞系遺伝的安定性を評価するための次世代配列解析 (NGS) ベースの方法の開発と検証.
- 総合的な遺伝的特徴付けのための新しい生物情報分析を実装する.
- 細胞系開発中の遺伝的安定性の早期決定を可能にする.
主な方法:
- NGSを利用したターゲティングシーケンスキャプチャ (TSC) パイプラインの開発.
- TSCパイプラインの適用は,82のクローナル派生抗体産生中国ハムスター卵巣 (CHO) 細胞系に適用される.
- ゲノムトランスゲンの配列同一性,統合部位,ベクトル整合性,コピー番号の特徴化.
主要な成果:
- NGSベースの方法は,CHO細胞系における遺伝的安定性の早期評価を提供した.
- NGSによって決定された遺伝的安定性は,GMP細胞バンクで使用される従来の方法と比較可能でした.
- 統合ベクトルシーケンスとコピー番号の特徴付けのためのNGSの有用性を実証しました.
結論:
- NGSは,バイオセラピーの製造ライフサイクル初期に遺伝的安定性を確立するための貴重なツールです.
- NGSは,生産細胞系統の遺伝的特徴付けに適した効果的な方法を提供します.
- NGSを用いた早期の遺伝的安定性評価は,遺伝的に不安定な細胞系を指定するリスクを軽減します.
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