Description: Xenobiotic receptors are proteins that bind to foreign compounds to the organism, known as xenobiotics, and mediate their effects in the body. These receptors are crucial for the detection and response to chemical substances that are not naturally produced by the organism, such as drugs, environmental pollutants, and food additives. By binding to xenobiotics, the receptors activate a series of signaling pathways that can influence gene expression, substance metabolism, and the elimination of toxic compounds. The interaction between receptors and xenobiotics is fundamental for homeostasis and organism protection, as it allows adaptation to a chemically variable environment. Furthermore, research on these receptors has led to a better understanding of toxicology and pharmacology, as well as the development of more effective and safer therapies. In summary, xenobiotic receptors are essential components in cellular biology that play a key role in the organism’s response to external substances, contributing to overall health and well-being.