Wnt Tgf-beta Signaling
Wnt Tgf-beta Signaling - Related Videos
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Studying Wnt Signaling During Patterning of Conducting Airways
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Cited by 4 •
2016
The use of reporter mice coupled to whole mount and section staining, microscopy and in vivo assays facilitates the analysis of mechanisms underlying the normal patterning of the respiratory tract. Here we describe how these techniques contributed to the analysis of Wnt signaling during tracheal development.
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TGF - β Signaling Pathway
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2023
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors are of three kinds RI, RII, and RIII. The RI...
02:54
Canonical Wnt Signaling Pathway
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2023
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...
02:54
Canonical Wnt Signaling Pathway
0 Views •
2021
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...
01:41
Non-Canonical Wnt Signaling Pathways
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2023
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...
FAQs
Canonical Wnt signaling affects development by changing the nuclear availability of beta-catenin, not merely by transmitting an extracellular cue. When degradation is inhibited, beta-catenin can enter the nucleus and alter gene expression. That transcriptional response can influence cell fate specification, proliferation, stem cell maintenance, and differentiation, linking pathway activity to tissue-level outcomes.
TGF-beta signaling uses serine/threonine kinase receptors to phosphorylate SMAD proteins, providing a direct molecular route from ligand recognition to transcriptional regulation. The resulting changes in gene expression can modify cell behavior and differentiation. In developmental settings, this mechanism helps connect extracellular signals with the organization and specialization of cells within forming tissues.
Crosstalk allows the two pathways to coordinate developmental decisions rather than acting as isolated communication systems. Their combined influence can help balance stem cell maintenance, proliferation, migration, differentiation, and cell fate specification. This integration is important because tissue formation requires coordinated changes in both individual cell states and the arrangement of cells across a developing structure.
Outcomes vary with the pathway engaged, the degree of pathway regulation, and the developmental tissue in which signaling occurs. The same broad communication system can therefore contribute to different processes, including embryonic patterning, organ formation, maintenance of stem cells, or differentiation. Interpreting signaling requires connecting molecular activity with the specific cellular and tissue context.
Wnt and TGF-beta signaling contribute to embryonic patterning and organ formation by regulating gene expression alongside cell proliferation, migration, differentiation, and fate specification. These activities help organize developing tissues and establish distinct cellular roles. Studying the pathways in developmental biology therefore links molecular communication to the larger process of building structured organs from embryonic cells.
Researchers examine these pathways when they need to understand how developing cells maintain stem-like properties, choose specialized fates, move through tissues, or differentiate. The pathways are especially relevant when investigating tissue organization and organ formation. Their study can provide a framework for connecting altered cellular behavior with developmental outcomes, including problems that arise during embryonic development.
Analysis can help explain how abnormal regulation contributes to congenital disorders and diseases associated with disrupted signaling. The same knowledge also supports research into tissue regeneration, where controlling stem cell maintenance, differentiation, and tissue organization is important. Because Wnt and TGF-beta signaling influence both gene expression and cell behavior, they connect developmental mechanisms with regenerative and disease-focused research.