Short sequences of amino acids, commonly referred to as peptides, that possess specific and potent biological activity, allowing them to exert targeted regulatory effects within the body. These chains function as signaling molecules, interacting with cellular receptors to modulate endocrine function, immune responses, or tissue repair processes. They represent a class of molecules with high therapeutic potential in hormonal health and longevity.
Origin
The term is derived from the fundamental biological building blocks of life, amino acids, combined with the concept of “bioactivity,” which denotes a specific, measurable effect on living tissue. The study of these short chains emerged from the broader field of protein chemistry and endocrinology, recognizing that many hormones are, in fact, small peptides. This recognition led to a new class of targeted therapeutics.
Mechanism
Their function is highly specific, often mimicking or potentiating the action of naturally occurring hormones or growth factors by binding to cognate receptors on target cells. Due to their small size, they can sometimes cross biological barriers more readily than large proteins, influencing cellular behavior in a dose-dependent manner. This mechanism allows for precise modulation of physiological pathways, such as those governing cellular regeneration or metabolic rate.
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