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Reconstitution Of β-catenin Degradation In Xenopus Egg Extract
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Wnt/β-カテニンの発信は,発達と疾患におけるシグナリングである
1Hubrecht Laboratory and Utrecht University, Uppsalalaan 8, 3584CT, Utrecht, the Netherlands. clevers@niob.knaw.nl
Cell
|November 4, 2006
まとめ
WNT (Wingless and INT-1) 信号伝達経路は,胚の発達と組織再生に不可欠である. 20年以上にわたる発見により,遺伝性疾患やがんにおけるその役割が明らかになった.
科学分野:
- 分子生物学は分子生物学である.
- 発達生物学 発達生物学について
- 遺伝学 遺伝学とは
背景:
- WNT (Wingless and INT-1) 信号伝達経路は,基本的な生物学的プロセスである.
- Wnt遺伝子は,動物のゲノム全体に保存されている分泌タンパク質をコードします.
- この経路は,重要な発達およびホメオスタティックなプロセスを調節します.
研究 の 目的:
- WNT信号伝達カスケードの学際的な解明を要約するために.
- 発達および成人組織におけるWnt信号伝達の多様な役割を強調する.
- 病気におけるWNT経路変異の影響を強調するために.
主な方法:
- 20年以上にわたる学際的な研究活動.
- 胚の発達におけるWnt遺伝子機能の分析.
- 大人の組織の自己再生におけるWnt信号の調査.
主要な成果:
- Wntシグナリングは,胚の発達のほぼすべての側面に不可欠です.
- この経路は,成人の様々な組織における自己再生を制御する.
- ゲルムライン変異は,遺伝性疾患に関連しています.
- ソマティック突然変異は,腸がんやその他のがんに関与しています.
結論:
- WNT経路は,発達と組織ホメオスタシスの主要な調節因子である.
- WNTシグナル伝達の制御不良は,重大な病理学的結果をもたらします.
- WNTのシグナル伝達に関する継続的な研究は,病気を理解し,治療するための希望を持っています.
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The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
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Canonical Wnt Signaling Pathway
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which results in tumor...
Non-Canonical Wnt Signaling Pathways
Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
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Catenins are characterized by multiple binding domains and dynamic structures that allow them to function as linker proteins in cell junction complexes. All catenins, except α-catenin, contain a characteristic protein sequence called the armadillo repeat and are therefore also called armadillo proteins.
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Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the adherens...
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the adherens...

