Interleukin receptor
Interleukin receptor is a type of protein that is found on the surface of cells and is involved in signal transduction. These receptors are responsible for binding interleukins, which are a group of cytokines that play a crucial role in the immune system.
Structure[edit | edit source]
Interleukin receptors are typically composed of at least two different protein subunits, which can vary depending on the specific interleukin they bind to. These subunits are often referred to as the alpha (α) and beta (β) chains. The α chain is usually specific to the particular interleukin, while the β chain can be shared among different interleukin receptors.
Function[edit | edit source]
The primary function of interleukin receptors is to bind interleukins and initiate a signal transduction pathway within the cell. This is typically achieved through the activation of Janus kinase (JAK) and Signal transducer and activator of transcription (STAT) proteins, which then modulate gene expression within the cell.
Interleukin receptors play a crucial role in the immune response, as they allow immune cells to communicate and coordinate their actions. For example, they can stimulate the proliferation and differentiation of T cells and B cells, promote the activation of macrophages, and induce the production of antibodies.
Clinical significance[edit | edit source]
Due to their role in the immune response, interleukin receptors are implicated in a number of diseases, including autoimmune diseases, inflammatory diseases, and cancer. For example, mutations in interleukin receptors can lead to primary immunodeficiency diseases, while overactivation of these receptors can contribute to the development of autoimmune and inflammatory diseases.
In addition, interleukin receptors are a target for several therapeutic drugs, such as tocilizumab, which is used to treat rheumatoid arthritis and juvenile idiopathic arthritis.
See also[edit | edit source]
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