鳥の網膜エンドセリオシスウイルス: 変容のための血液形成標的細胞の識別
まとめ
レチキュロエンドセリオシスウイルス型T (REV-T) は,鶏の細胞をインビトロで変容させ,ワクチン接種時に致命的なレチキュロエンドセリオシスを引き起こします. この研究では,B細胞の決定因子を発現する未成熟リンパ性細胞をREV-Tのターゲットとして選択した.
科学分野:
- ウイルス学 ウイルス学 ウイルス学
- 腫瘍学 腫瘍学
- 免疫学 免疫学とは
背景:
- レチキュロエンドセリオシスウイルス型T (REV-T) は,鳥類の急性白血病ウイルスです.
- REV-Tのイン・ビボ標的細胞は,これまでイン・ビトロで特定または変換されたことはありません.
- REV-Tの細胞標的を理解することは,鳥類のがん研究にとって極めて重要です.
研究 の 目的:
- REV-Tによる鳥類の血液形成細胞のインビトロ変換を実証する.
- REV-Tによって変換される特定の細胞タイプを特定するために.
- REV-T変形細胞の性質を特徴付けるために.
主な方法:
- REV-T.を使用した鶏の血液生成細胞のインビトロ変換.
- 腫瘍発生性を評価するために,変形した細胞をヒストコンパティブルなニワトリに接種する.
- 細胞形態学,ウイルスタンパク質発現,細胞表面マーカー (末端デオキシヌクレオチジルトランスファーゼ,ブルサ細胞決定因子,免疫グロブリンム) の分析.
主要な成果:
- REV-Tが変形した,ウイルス産生しない血液生成細胞を in vitro.
- これらの変形した細胞は,鶏の致命的な網膜エンドセリオシスを誘発した.
- 変形した細胞はリンパ芽細胞形態,低末端デオキシヌクレオチチチルトランスファーゼ活性,およびブルサ細胞決定因子の発現を示し,1つのクローンは免疫グロブリンを合成した.
- 変形した細胞はヘルパーウイルス機能を必要としなかった.
結論:
- REV-Tによってインビトロ変換された細胞は,致死性疾患を誘発し,腫瘍発生性であることを確認することができます.
- B細胞の決定因子を発現する未成熟リンパ性細胞は,REV-T変換の好ましい標的である.
- REV-Tのユニークな変換配列は,rel (リンパ管) と指定することが提案されています.
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