Description: A mediator is a substance that plays a crucial role in mediating biological processes, acting as an intermediary in various reactions and responses within the organism. In the context of biochemistry, mediators are compounds that facilitate communication between cells and tissues, regulating essential functions such as inflammation, immune response, and neurotransmission. These mediators can be hormones, neurotransmitters, cytokines, or even metabolites, and their action can be local or systemic, depending on their nature and the context in which they are found. The relevance of mediators lies in their ability to influence the homeostasis of the organism, as well as their role in the pathology of various diseases. For example, in an inflammatory response, mediators such as prostaglandins and cytokines are released by immune cells and act on other tissues to promote inflammation and healing. Understanding mediators and their mechanisms of action is fundamental for the development of targeted therapies that can effectively modulate these biological responses.
