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変調されたBMP信号による数字同一性とホメオティック変換のデジタル間調節
1Department of Anatomy, University of Wisconsin, 1300 University Avenue, Madison, WI 53706, USA.
まとめ
発達中の四肢におけるデジタルアイデンティティは,指の固有の性質ではなく,指間メソダーマからの信号によって決定されます. 骨形態遺伝タンパク質 (BMP) 信号伝達は,これらのアイデンティティを特定する上で重要な役割を果たします.
科学分野:
- 発達生物学 発達生物学とは
- リムブ開発は,リムブ地方の発展である.
- パターン形成はパターン形成です.
背景:
- 肢体の発達中の数字のアイデンティティを特定するメカニズムは,何十年もの研究にもかかわらず,まだ十分に理解されていません.
- 以前の仮定では,数字のアイデンティティは,発達中の数字のプリモルディアに固有のものであることが示唆されていました.
研究 の 目的:
- 発達中の四肢におけるデジタルアイデンティティを決定する信号の源を調査する.
- デジタルのアイデンティティを特定する際のデジタル間組織とシグナル伝達経路の役割を明らかにする.
主な方法:
- チッキーの足の発達モデルで実験を行った.
- 骨格間のメソデーム組織は,パターニングにおけるその役割について分析されました.
- 骨形態遺伝タンパク質 (BMP) 信号伝達経路は,数字のアイデンティティへの影響を観察するために抑制されました.
主要な成果:
- デジタル・アイデンティティは,デジタル・メソデルマによって指定され,デジタル・プリモルディアに固定されていません.
- より後ろの数字の間は,より後ろの数字のアイデンティティのヒントを提供します.
- デジタル間BMPシグナル伝達の阻害は,結果として得られた数字のアイデンティティを変化させた.
結論:
- デジタルの間のメソデルマは,その回帰の前に,デジタルのアイデンティティを積極的にパターン化します.
- 桁の発達は,桁間メソダーマから受け取る最も後部にある位置的シグナルによって影響を受けます.
- BMPシグナル伝達は,四肢の発達中に数字のアイデンティティを特定するのに関与する重要な分子経路です.
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