IGF One Pathways describe the complex intracellular and systemic signaling cascades initiated by Insulin-like Growth Factor-1 (IGF-1), a peptide hormone primarily synthesized in the liver in response to Growth Hormone (GH) stimulation. These pathways are crucial mediators of GH’s anabolic effects, promoting cell proliferation, differentiation, and survival in numerous tissues, including muscle, bone, and cartilage. The principal mechanism involves IGF-1 binding to its receptor, which subsequently activates the PI3K/Akt and MAPK signaling routes. Modulating these pathways is central to therapeutic strategies aimed at tissue repair, metabolic health, and functional longevity.
Origin
The term “IGF-1” was first identified in the 1970s as the mediator of GH action, previously called “sulfation factor.” The concept of “Pathways” is derived from molecular biology and cell signaling, describing the sequence of biochemical reactions that transmit a signal from the cell surface to the nucleus. These pathways are now a focal point in the study of endocrinology and aging.
Mechanism
Upon IGF-1 binding, the IGF-1 receptor undergoes autophosphorylation, which recruits intracellular signaling molecules. The activation of the PI3K/Akt pathway is particularly important for muscle tissue synthesis and inhibiting apoptosis, while the MAPK pathway regulates gene expression and cellular proliferation. Clinical modulation of the GH-IGF-1 axis, often through Growth Hormone Secretagogues, is designed to increase IGF-1 levels, thereby driving these anabolic and regenerative cellular mechanisms to support overall vitality.
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.