human, Cynomolgus/ Rhesus macaque, rat, mouse CD40 ligand(CD154) for cell curture,in vitro study, in vivo study,benchmark, drug discovery & MOA research and positive control for the diagnosis.

Genemedi produces human, Cynomolgus/ Rhesus macaque, rat, mouse CD40 ligand (CD154) for cell curture, in vitro study, in vivo study, benchmark, drug discovery & MOA research and positive control for the diagnosis.

CD154, also called CD40 ligand or CD40L, is a protein that is primarily expressed on activated T cells and is a member of the TNF superfamily of molecules. It binds to CD40 (protein) on antigen-presenting cells (APC), which leads to many effects depending on the target cell type. In total CD40L has three binding partners: CD40, α5β1 integrin and αIIbβ3. CD154 acts as a costimulatory molecule and is particularly important on a subset of T cells called T follicular helper cells (TFH cells). On TFH cells, CD154 promotes B cell maturation and function by engaging CD40 on the B cell surface and therefore facilitating cell-cell communication. A defect in this gene results in an inability to undergo immunoglobulin class switching and is associated with hyper IgM syndrome. Absence of CD154 also stops the formation of germinal centers and therefore prohibiting antibody affinity maturation, an important process in the adaptive immune system.

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