CXCL16

CXCL16 is a small cytokine belonging to the CXC chemokine family that is also known as CXCL16 (Chemokine (C-X-C motif) ligand 16). This chemokine is secreted by monocytes, macrophages, and dendritic cells, and is chemoattractant for lymphocytes and monocytes. It exists in both a soluble form and a membrane-bound form, where it also functions as an adhesion molecule.

Structure

CXCL16 is a transmembrane protein that is cleaved by the enzyme ADAM10 to generate a soluble chemokine. The soluble form of CXCL16 can bind and signal through the chemokine receptor CXCR6 on T cells, while the membrane-bound form can mediate cell-cell adhesion.

Function

CXCL16 is involved in several important physiological and pathological processes. It plays a role in the immune response by attracting immune cells to sites of inflammation. It is also involved in the development of atherosclerosis, where it contributes to the recruitment of inflammatory cells to the arterial wall. In addition, CXCL16 has been implicated in the progression of several types of cancer, where it can promote tumor growth and metastasis.

Clinical significance

Due to its role in inflammation and cancer, CXCL16 is a potential target for therapeutic intervention. Inhibitors of CXCL16 or its receptor CXCR6 could potentially be used to treat inflammatory diseases or cancer. However, more research is needed to fully understand the functions of CXCL16 and its potential as a therapeutic target.

See also

• Chemokine
• Cytokine
• ADAM10
• CXCR6

References

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