Zinc finger protein GFI-1 has low oncogenic potential but cooperates strongly with pim and myc genes in T-cell lymphomagenesis
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منابع مشابه
Evidence implicating Gfi-1 and Pim-1 in pre-T-cell differentiation steps associated with beta-selection.
After rearrangement of the T-cell receptor (TCR) beta-locus, early CD4(-)/CD8(-) double negative (DN) thymic T-cells undergo a process termed 'beta-selection' that allows the preferential expansion of cells with a functional TCR beta-chain. This process leads to the formation of a rapidly cycling subset of DN cells that subsequently develop into CD4(+)/CD8(+) double positive (DP) cells. Using t...
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Transgenic mice overexpressing the pim-1 oncogene in their lymphoid compartments are predisposed to T-cell lymphomagenesis but only to the extent that approximately 10% of the transgenic mice develop lymphomas within 34 weeks after birth. Recently, we have shown that lymphomagenesis in pim-1 transgenic mice can be accelerated by infecting pim-1 transgenic mice with murine leukemia viruses or by...
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The Pim kinases are weak oncogenes. However, when co-expressed with a strong oncogene, such as c-Myc, Pim kinases potentiate the oncogenic effect resulting in an acceleration of tumorigenesis. In this study we show that the least studied Pim kinase, Pim-3, is encoded by a gene directly regulated by c-Myc via binding to one of the conserved E-boxes within the Pim3 gene. Accordingly, lymphomas ar...
متن کاملMoMuLV proviral integrations identified by Sup-F selection in tumors from infected myc/pim bitransgenic mice correlate with activation of the gfi-1 gene
Infecting mice with a mutant Moloney murine leukemia virus which contains the bacterial suppressor tRNA supF in its LTR allows rapid cloning of proviral integration sites from genomic tumour DNA. In a previous study Emu pim-1/Emu L-myc bitransgenic mice had been inoculated neonatally with MoMuLV supF virus. The retroviral infection led to acceleration of lymphomagenesis indicating the proviral ...
متن کاملErythroid expansion mediated by the Gfi-1B zinc finger protein: role in normal hematopoiesis.
In the search for genes expressed in hematopoietic stem cells, we identified that the expression of Gfi-1B (growth factor independence-1B) is highly restricted to hematopoietic stem cells, erythroblasts, and megakaryocytes. Gfi-1 and Gfi-1B are zinc finger proteins that share highly conserved SNAG and 6 zinc finger domains. Gfi-1 has been characterized as an oncogene involved in lymphoid malign...
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ژورنال
عنوان ژورنال: Oncogene
سال: 1998
ISSN: 0950-9232,1476-5594
DOI: 10.1038/sj.onc.1202191