| First Author | Talos F | Year | 2005 |
| Journal | Cell Death Differ | Volume | 12 |
| Issue | 10 | Pages | 1319-28 |
| PubMed ID | 15947793 | Mgi Jnum | J:101099 |
| Mgi Id | MGI:3590597 | Doi | 10.1038/sj.cdd.4401653 |
| Citation | Talos F, et al. (2005) MIF loss impairs Myc-induced lymphomagenesis. Cell Death Differ 12(10):1319-28 |
| abstractText | Macrophage migration inhibitory factor (MIF) is a potent regulator of inflammation and cell growth. Using the Emu-Myc lymphoma mouse model, we demonstrate that loss of MIF markedly delays the onset of B-cell lymphoma development in vivo. The molecular basis for this MIF-loss-induced phenotype is the perturbed DNA-binding activity of E2F factors and the concomitantly enhanced tumor suppressor activity of the p53 pathway. Accordingly, premalignant MIF-null Emu-Myc B-cells are predisposed to delayed S-phase progression and increased apoptosis. MIF-deficient lymphomas that do arise under these conditions contain frequent ARF deletions and p53 inactivating mutations. Conversely, MIF expression is retained in tumors developed by wild-type Emu-Myc animals, and the presence of one or both MIF alleles is sufficient to accelerate the development of Myc-induced lymphomas. Collectively, these results indicate that MIF promotes Myc-mediated tumorigenesis, at least in the B-lymphoid compartment, and implicate MIF as a mediator of malignant cell growth in vivo. |
