What does CX3CL1 do?
Fractalkine/CX3CL1 plays a dual role in RA: 1) acting as a chemotactic agent for monocytes and lymphocytes, and 2) as a cellular adhesion molecule (9). A high percentage of macrophages within RA synovium express the CX3CR1 receptor, suggesting fractalkine/CX3CL1 participates in the development of RA.
What cells express CX3CL1?
The biological activities of CX3CL1 are mediated by CX3CR1, that is expressed on different cell types such as NK cells, CD14+ monocytes, cytotoxic effector T cells, B cells, neurons, microglia, smooth muscle cells, and tumor cells.
What is Fractalkine signaling?
Fractalkine signaling controls these functions of microglial cells in part by regulating their timely recruitment at sites of developing synapses. Finally, on-going research suggests that this signaling pathway is also a key player in neurodevelopmental disorders.
Where is CCR5 found?
C-C chemokine receptor type 5, also known as CCR5 or CD195, is a protein on the surface of white blood cells that is involved in the immune system as it acts as a receptor for chemokines. In humans, the CCR5 gene that encodes the CCR5 protein is located on the short (p) arm at position 21 on chromosome 3.
What is CCR2 gene?
CCR2 (C-C Motif Chemokine Receptor 2) is a Protein Coding gene. Diseases associated with CCR2 include Human Immunodeficiency Virus Type 1 and Idiopathic Anterior Uveitis. Among its related pathways are A-beta Uptake and Degradation and Defensins.
Do B cells express CCR2?
Approximately 29% of BM T cells, 15% of blood T cells and 9% of BM B cells also expressed CCR2.
What is the structure of cxx3cl1?
CX3CL1 is produced as a long protein (with 373-amino acid in humans) with an extended mucin -like stalk and a chemokine domain on top. The mucin-like stalk permits it to bind to the surface of certain cells.
What is the role of CX3CL1 in autoimmune disease?
CX3 CL1 can block the CX3CR1-mediated entry of these viruses in vitro. CX3CR1 is preferentially expressed on Th1 T cells, and CX3CL1 is found in lesions of psoriasis, a type 1 autoimmune disease.
Why is CX3CL1 unique among chemokines?
CX3CL1 is unique among chemokines in being able to mediate arrest of cells under conditions of flow by direct interaction, without G protein signaling. In addition, CX3CR1 is a co-receptor for HIV-1 and functions as a binding site for the envelope protein of the respiratory syncytial virus.
What is focusfractalkine (CX3CL1)?
Fractalkine is a large cytokine protein of 373 amino acids, it contains multiple domains and is the only known member of the CX 3C chemokine family. It is also commonly known under the names fractalkine (in humans) and neurotactin (in mice). The polypeptide structure of CX3CL1 differs from the typical structure of other chemokines.
