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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...
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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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The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
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The Soft Agar Colony Formation Assay
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PTK7 Faces the Wnt in Development and Disease.

Hanna Berger1, Andreas Wodarz2,3, Annette Borchers1,4

  • 1Department of Biology, Molecular Embryology, Philipps-Universität MarburgMarburg, Germany.

Frontiers in Cell and Developmental Biology
|April 21, 2017
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Summary

Protein tyrosine kinase 7 (PTK7) is a receptor involved in embryonic development and tissue maintenance. Recent findings highlight PTK7

Keywords:
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Area of Science:

  • Developmental Biology
  • Cell Signaling
  • Molecular Biology

Background:

  • Protein tyrosine kinase 7 (PTK7) is an evolutionarily conserved transmembrane receptor.
  • PTK7 plays crucial roles in embryonic development and tissue homeostasis.
  • It influences cell polarity, migration, and invasion at the cellular level.

Purpose of the Study:

  • To review recent findings on PTK7.
  • To explore PTK7's role at the intersection of Wnt signaling pathways.
  • To discuss PTK7's implications in development and disease.

Main Methods:

  • Literature review of recent research findings.
  • Analysis of PTK7 interactions with signaling molecules.
  • Synthesis of data on PTK7's functional roles.

Main Results:

  • PTK7 interacts with ligands, co-receptors, and intracellular transducers.
  • These interactions suggest a role in fine-tuning Wnt signaling.
  • PTK7 is implicated in both developmental processes and disease.

Conclusions:

  • PTK7 is a key regulator in Wnt signaling networks.
  • Understanding PTK7's function is vital for development and disease research.
  • Further investigation into PTK7 pathways is warranted.