First Author | Richie ER | Year | 2002 |
Journal | Oncogene | Volume | 21 |
Issue | 2 | Pages | 299-306 |
PubMed ID | 11803473 | Mgi Jnum | J:74380 |
Mgi Id | MGI:2158180 | Doi | 10.1038/sj.onc.1205051 |
Citation | Richie ER, et al. (2002) The Polycomb-group gene eed regulates thymocyte differentiation and suppresses the development of carcinogen-induced T-cell lymphomas. Oncogene 21(2):299-306 |
abstractText | The mouse Polycomb-group gene, embryonic ectoderm development (eed), appears to regulate cellular growth and differentiation in a developmental and tissue specific manner. During embryogenesis, eed regulates axial patterning, whereas in the adult eed represses proliferation of myeloid and B cell precursors. The present report demonstrates two novel functional activities of eed: alteration of thymocyte maturation and suppression of thymic lymphoma development. Mice that inherit the viable hypomorphic 17Rn5(1989SB) eed allele sustain a partial developmental block at or before the CD4(-)CD8(-)CD44(-)CD25(+) stage of thymocyte differentiation. Furthermore, mice that are homozygous or heterozygous for the hypomorphic eed allele have an increased incidence and decreased latency of N-methyl-N-nitrosourea-induced thymic lymphoma compared to wild-type littermates. These findings support the notion that Polycomb-group genes exert pleiotrophic effects dictated by developmental stage and cellular context. DOI: 10.1038/sj/onc/1205051 |