Tim-3 enhances FcεRI-proximal signaling to modulate mast cell activation

Tim-3 enhances FcεRI-proximal signaling to modulate mast cell activation

T cell (or transmembrane) immunoglobulin and mucin domain protein 3 (Tim-3) has attracted significant attention as a novel immune checkpoint receptor (ICR) on chronically stimulated, often dysfunctional, T cells. Antibodies to Tim-3 can enhance antiviral and antitumor immune responses. Tim-3 is also constitutively expressed by mast cells, NK cells and specific subsets of macrophages and dendrit...

[Bacteria and viruses modulate FcεRI-dependent mast cell activity].

Undoubtedly, mast cells play a central role in allergic processes. Specific allergen cross-linking of IgE bound to the high affinity receptors (FcεRI) on the mast cell surface leads to the release of preformed mediators and newly synthesized mediators, i.e. metabolites of arachidonic acid and cytokines. More and more data indicate that bacteria and viruses can influence FcεRI-dependent mast cel...

Rcan1 negatively regulates FcεRI-mediated signaling and mast cell function

Aggregation of the high affinity IgE receptor (Fc epsilonRI) activates a cascade of signaling events leading to mast cell activation. Subsequently, inhibitory signals are engaged for turning off activating signals. We identified that regulator of calcineurin (Rcan) 1 serves as a negative regulator for turning off Fc epsilonRI-mediated mast cell activation. Fc epsilonRI-induced Rcan1 expression ...

Tim-3 Directly Enhances CD8 T Cell

TIM-1 and TIM-3 enhancement of Th2 cytokine production by mast cells Short title: Role of TIM-1 and TIM-3 in mast cell function

Members of the T cell immunoglobulinand mucin-domain-containing molecule (TIM) family have roles in T cell-mediated immune responses. TIM-1 and TIM-2 are predominantly expressed on Th2 cells, whereas TIM-3 is preferentially expressed on Th1 and Th17 cells. We found that TIM-1 and TIM-3, but neither TIM-2 nor TIM-4, were constitutively expressed on mouse peritoneal mast cells and bone-marrow-der...