CX3CL1

CX3CL1 (also known as Fractalkine) is a large Cytokine that belongs to the Chemokine family. It is unique among chemokines in having a CX3C motif, which is characterized by three amino acids between the first two cysteines.

CX3CL1 is produced by endothelial cells, neurons, and microglial cells. It is involved in the immune response, inflammation, and neurodegeneration.

Structure

CX3CL1 is a large molecule with a complex structure. It consists of a chemokine domain, a Mucin-like stalk, a transmembrane domain, and a short cytosolic domain. The chemokine domain is responsible for the chemotactic activity of CX3CL1, while the mucin-like stalk allows it to adhere to the surface of cells.

Function

CX3CL1 functions as both a chemokine and an adhesion molecule. As a chemokine, it attracts leukocytes to sites of inflammation. As an adhesion molecule, it helps leukocytes adhere to the endothelium and migrate into tissues.

CX3CL1 also plays a role in the brain, where it is involved in neuron-microglia communication. It has been implicated in several neurodegenerative diseases, including Alzheimer's, Parkinson's, and multiple sclerosis.

Clinical significance

Due to its role in inflammation and neurodegeneration, CX3CL1 is a potential target for therapeutic intervention. Drugs that block the action of CX3CL1 could potentially be used to treat a variety of inflammatory and neurodegenerative diseases. Template:Chemokine-stub Template:Cytokine-stub Template:Neurodegeneration-stub