関連する実験動画
Updated: Jul 6, 2026

11:13
Indirect Immunofluorescence on Frozen Sections of Mouse Mammary Gland
Published on: December 1, 2015
哺乳類の細胞におけるダイナミック・シグナル・ネットワークのハイ・スループット・マッピング
Miriam Barrios-Rodiles1, Kevin R Brown, Barish Ozdamar
1Program in Molecular Biology and Cancer, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada, M5G 1X5.
まとめ
LUMIERテクノロジーを用いて哺乳類の細胞におけるタンパク質の相互作用をマッピングし,成長因子-β (TGFbeta) 経路と,細胞変化に不可欠な緊密結合タンパク質オクラジンとのつながりを明らかにしました.
科学分野:
- 細胞生物学 細胞生物学
- 分子生物学は分子生物学である.
- バイオケミストリー バイオケミストリー
背景:
- タンパク質の相互作用ネットワークは,外部要因によって動的に調節される細胞シグナル伝達に不可欠です.
- これらのネットワークを理解することは,変形成長因子β (TGFβ) 経路のような複雑な生物学的プロセスを解読する鍵です.
研究 の 目的:
- 哺乳類の細胞におけるタンパク質とタンパク質の相互作用を,新しい高通量技術を用いて体系的にマッピングする.
- 変形成長因子β (TGFβ) 経路のタンパク質相互作用ネットワークを調査する.
- TGFβ経路内の新しいコンポーネントと規制メカニズムを特定する.
主な方法:
- LUMIER (光ベースの哺乳類インタラクトームマッピング) の開発と応用,自動化された高通量技術.
- 哺乳類の細胞におけるタンパク質-タンパク質相互作用の体系的なマッピング.
- 自己組織化マップとk-meansクラスタリングを含むバイオ情報分析.
主要な成果:
- LUMIER技術は,TGFβ経路内のタンパク質の相互作用をマッピングすることに成功しました.
- TGFβ経路とp21活性化キナーゼ (PAK) ネットワーク,極性複合体,オークルジンとの間の新しいリンクが特定されました.
- オークルジンはTGFβ型I受容体の局所化を調節し,上皮からメゼンキマへの移行中に緊密な結界の溶解に影響を及ぼすことが実証されました.
結論:
- LUMIERは,哺乳類の細胞における高通量インタラクトームマッピングのための効果的なツールです.
- オークルジンは,受容体の局所化と緊密な交差点のダイナミクスを調節することによって,TGFβシグナル伝達において重要な役割を果たします.
- これらの発見は,上皮からメゼンキマへの移行の調節に関する新しい洞察を提供します.
関連する概念動画
Contact-dependent Signaling
Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
Gap Junctions
In animal cells, gap junctions are formed...
Intracellular Signaling Cascades
Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. The continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors, which cannot interact with most components of the cell, such as DNA. Only internal receptors can interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the...
Autocrine Signaling
Autocrine signaling is one of the many signaling mechanisms that function inside multicellular organisms to carry out intercellular communication. In this type of signaling mechanism, the same cell that secretes an extracellular signaling molecule also expresses the receptors to bind and respond to that signaling molecule.
Autocrine Signaling in Macrophages
Under normal physiological conditions, autocrine signaling is essential for maintaining homeostasis. This process is well characterized in...
Autocrine Signaling in Macrophages
Under normal physiological conditions, autocrine signaling is essential for maintaining homeostasis. This process is well characterized in...
Autocrine Signaling
Autocrine signaling is one of the many signaling mechanisms that function inside multicellular organisms to carry out intercellular communication. In this type of signaling mechanism, the same cell that secretes an extracellular signaling molecule also expresses the receptors to bind and respond to that signaling molecule.
Autocrine Signaling in Macrophages
Under normal physiological conditions, autocrine signaling is essential for maintaining homeostasis. This process is well characterized in...
Autocrine Signaling in Macrophages
Under normal physiological conditions, autocrine signaling is essential for maintaining homeostasis. This process is well characterized in...
Intracellular Signaling Cascades
Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. The continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors, which cannot interact with most components of the cell, such as DNA. Only internal receptors can interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the...
Overview of Cell Signaling
Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...

