The Neurotrophic Factor Cascade describes the sequential and synergistic release and activity of various neurotrophic factors, such as BDNF, Nerve Growth Factor (NGF), and Glial Cell Line-Derived Neurotrophic Factor (GDNF), that collectively regulate neuronal development, survival, and synaptic plasticity. This cascade is a fundamental biological process essential for maintaining the brain’s structural and functional health throughout the lifespan. Disruptions to this cascade are intimately linked to cognitive decline and neurodegeneration.
Origin
The concept originated with the discovery of NGF and subsequent identification of the broader family of neurotrophins, which function as essential growth and survival factors for neurons. The term “cascade” emphasizes the interconnected nature of these signaling molecules, where the activity of one factor can potentiate or modulate the release and effect of others. It is a key target in regenerative medicine.
Mechanism
The cascade operates through the binding of neurotrophic factors to specific high-affinity transmembrane receptors, such as the Trk family, which then initiates complex intracellular signaling pathways, including the MAPK and PI3K pathways. These pathways regulate gene expression to promote anti-apoptotic mechanisms, enhance dendritic arborization, and increase the synthesis of synaptic proteins. The ultimate functional output is the maintenance of synaptic scaffolding support and the facilitation of hippocampal volume restoration.
We use cookies to personalize content and marketing, and to analyze our traffic. This helps us maintain the quality of our free resources. manage your preferences below.
Detailed Cookie Preferences
This helps support our free resources through personalized marketing efforts and promotions.
Analytics cookies help us understand how visitors interact with our website, improving user experience and website performance.
Personalization cookies enable us to customize the content and features of our site based on your interactions, offering a more tailored experience.