| First Author | Kaminski S | Year | 2012 |
| Journal | Oncoimmunology | Volume | 1 |
| Issue | 5 | Pages | 600-608 |
| PubMed ID | 22934252 | Mgi Jnum | J:197583 |
| Mgi Id | MGI:5493394 | Doi | 10.4161/onci.20225 |
| Citation | Kaminski S, et al. (2012) The protooncogene Vav1 regulates murine leukemia virus-induced T-cell leukemogenesis. Oncoimmunology 1(5):600-608 |
| abstractText | Vav1 is expressed exclusively in hematopoietic cells and is required for T cell development and activation. Vav1-deficient mice show thymic hypocellularity due to a partial block during thymocyte development at the DN3 stage and between the double positive (DP) and single positive (SP) transition. Vav1 has been shown to play a significant role in several non-hematopoietic tumors but its role in leukemogenesis is unknown. To address this question, we investigated the role of Vav1 in retrovirus-induced T cell leukemogenesis. Infection of Vav1-deficient mice with the Moloney strain of murine leukemia virus (M-MuLV) significantly affected tumor phenotype without modulating tumor incidence or latency. M-MuLV-infected Vav1-deficient mice showed reduced splenomegaly, higher hematocrit levels and hypertrophic thymi. Notably, Vav1-deficient mice with M-MuLV leukemias presented with markedly lower TCRbeta/CD3 levels, indicating that transformation occurred at an earlier stage of T cell development than in WT mice. Thus, impaired T cell development modulates the outcome of retrovirus-induced T cell leukemias, demonstrating a link between T cell development and T cell leukemogenesis. |
