Trkb Signaling
Trkb Signaling - Related Videos
01:26
Signal and System
0 Views •
2024
A signal x(t) is a set of data or a time function representing a variable of interest. Signals typically convey information about a phenomenon, such as atmospheric temperature, humidity, human voice, television images, a dog's bark, or birdsongs. More generally, a signal can be a function of more than one independent variable. For instance, images depend on horizontal and vertical positions and can be regarded as two-dimensional signals. However, this text will focus on one-dimensional signals...
12:24
Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy
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2016
We present guidelines for developing synthetic 'chemical transducers' that can induce communication between naturally unrelated proteins. In addition, detailed protocols are presented for synthesizing and testing a specific 'transducer' that enables a growth factor to activate a detoxifying enzyme and consequently, to regulate the cleavage of an anticancer prodrug.
01:21
Cell-surface Signaling
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2019
Hormones—or any molecule that binds to a receptor, known as a ligand—that are lipid-insoluble (water-soluble) are not able to diffuse across the cell membrane. In order to be able to affect a cell without entering it, these hormones bind to receptors on the cell membrane. When a first messenger, a hormone, binds to a receptor, a signal cascade is set off, causing second messengers, proteins inside the cell, to become activated, resulting in downstream effects. Variety of Receptor Families
09:40
Imaging G-protein Coupled Receptor (GPCR)-mediated Signaling Events that Control Chemotaxis of Dictyostelium Discoideum
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Cited by 2 •
2011
Here, we describe detailed live cell imaging methods for investigating chemotaxis. We present fluorescence microscopic methods to monitor spatiotemporal dynamics of signaling events in migrating cells. Measurement of signaling events permits us to further understand how a GPCR-signaling network achieves gradient sensing of chemoattractants and controls directional migration of eukaryotic cells.
08:24
Imaging G Protein-coupled Receptor-mediated Chemotaxis and its Signaling Events in Neutrophil-like HL60 Cells
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Cited by 7 •
2016
Visual chemotaxis assays are essential for a better understanding of how eukaryotic cells control chemoattractant-mediated directional cell migration. Here, we describe detailed methods for: 1) real-time, high-resolution monitoring of multiple chemotaxis assays, and 2) simultaneously visualizing the chemoattractant gradient and the spatiotemporal dynamics of signaling events in neutrophil-like HL60 cells.
FAQs
The key molecular transition begins when BDNF or neurotrophin-4/5 binds TrkB, prompting receptor dimerization and autophosphorylation. Phosphorylated receptor regions then function as docking sites for intracellular signaling components. This arrangement converts ligand recognition into coordinated activation of MAPK/ERK, PI3K-AKT, and PLCγ branches, allowing one receptor system to influence several neuronal processes.
These three downstream branches translate TrkB activation into complementary neuronal effects. Their combined signaling supports neuronal survival, differentiation, axonal growth, synaptic development, and activity-dependent plasticity. Considering the pathways together is important because TrkB signaling is not limited to a single cellular outcome; it links receptor activation with both structural changes and functional adaptation in neurons.
Activity-dependent plasticity describes neural changes associated with experience and patterns of activity. TrkB signaling is relevant because its downstream pathways help regulate how neurons and synapses adapt in response to those conditions. Studying this relationship connects molecular receptor signaling with changes in neural circuits, making the pathway useful for explaining experience-related adaptation in the nervous system.
In neuroscience, investigators examine TrkB signaling to connect molecular events with the formation and adaptation of neural circuits. Relevant outcomes include neuronal differentiation, axonal growth, synaptic development, and activity-dependent plasticity. This approach helps place receptor-mediated signaling within the broader sequence of events through which developing circuits acquire structure and later respond to experience.
Researchers can evaluate whether TrkB-associated signaling relates to neuronal survival, differentiation, axonal growth, synaptic development, or activity-dependent plasticity. These outcomes span cell maintenance, neuronal structure, synaptic organization, and functional adaptation. Examining several outcomes provides a broader view of how the pathway may influence neural function rather than treating receptor activation as an isolated molecular event.
Dysregulated TrkB signaling is investigated because the pathway supports processes central to neural health and adaptation, including neuronal survival, circuit development, synaptic development, and plasticity. Its study therefore offers a way to examine how altered neurotrophic signaling may relate to neurodevelopmental, neurodegenerative, and psychiatric disorders, as well as to evaluate TrkB-related therapeutic strategies.