| First Author | Nakae S | Year | 2007 |
| Journal | Blood | Volume | 110 |
| Issue | 7 | Pages | 2565-8 |
| PubMed ID | 17620455 | Mgi Jnum | J:147011 |
| Mgi Id | MGI:3839082 | Doi | 10.1182/blood-2006-11-058800 |
| Citation | Nakae S, et al. (2007) TIM-1 and TIM-3 enhancement of Th2 cytokine production by mast cells. Blood 110(7):2565-8 |
| abstractText | Members of the T-cell immunoglobulin- and mucin-domain-containing molecule (TIM) family have roles in T-cell-mediated immune responses. TIM-1 and TIM-2 are predominantly expressed on T helper type 2 (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-derived cultured mast cells (BMCMCs). After IgE + Ag stimulation, TIM-1 expression was down-regulated on BMCMCs, whereas TIM-3 expression was up-regulated. We also found that recombinant mouse TIM-4 (rmTIM-4), which is a ligand for TIM-1, as well as an anti-TIM-3 polyclonal Ab, can promote interleukin-4 (IL-4), IL-6, and IL-13 production without enhancing degranulation in BMCMCs stimulated with IgE + Ag. Moreover, the anti-TIM-3 Ab, but neither anti-TIM-1 Ab nor rmTIM-4, suppressed mast-cell apoptosis. These observations suggest that TIM-1 and TIM-3 may be able to influence T-cell-mediated immune responses in part through effects on mast cells. |
