線形二重化によって明らかにされるフィリピンの方向性. 行動モデルの影響
Sílvia C D N Lopes1, Erik Goormaghtigh, Benedito J Costa Cabral
1Centro de Química-Física Molecular, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
Journal of the American Chemical Society
|April 29, 2004
まとめ
脂質膜におけるフィリピン抗生物質の指向は,コレステロールの存在と脂質相に依存する. フィリピンの挿入は,コレステロールまたは液晶相の存在において,膜表面に垂直に挿入し,その組織に関する議論を解決します.
科学分野:
- 膜バイオフィジックス
- 抗菌薬の薬物相互作用
- 脂質とコレステロールの相互作用
背景:
- ポリエネ抗生物質のフィリピンの組織がコレステロールを含有する膜内にあることが議論されている.
- 2つのモデルは,膜平面に対するフィリピンの平行または垂直の方向性を提案しています.
研究 の 目的:
- コレステロールとコレステロールのないモデル膜におけるフィリピンの方向性を調査する.
- フィリピンの膜組織に関する論争を解決するために.
主な方法:
- UV対線形二重化,ATR-FTIR,および光アニソトロピーの衰退を利用した.
- コレステロールとコレステロールなしの1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) と1,2-palmitoyl-sn-glycero-3-phosphocholine (DPPC) のモデル膜で研究されたフィリピン.
主要な成果:
- フィリピンの指向は,ゲル相 (DPPC) 膜におけるコレステロール依存性である.
- コレステロールが33%のDPPCでは,フィリピンは垂直に向き,毛穴形成モデルと一致します.
- フィリピンは,コレステロールなしのDPPCのランダムな組織を示しています.
- 液晶相 (POPC) 膜では,コレステロールの存在に関係なく,フィリピンは垂直に方向づけられています.
結論:
- フィリピンの活動と組織は,コレステロールの存在と脂質相の両方によって影響を受けます.
- 発見は,フィリピン-コレステロールの相互作用に関する矛盾する文献データを調和させる.
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