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Protein phosphatase 2A (PP2A) negatively regulates tumorigenic signaling pathways, in part, by supporting the function of tumor suppressors like p53. The PP2A methylesterase PME-1 limits the activity of PP2A by demethylating its catalytic subunit. Here, we report the finding that PME-1 overexpression correlates with increased cell proliferation and invasive(More)
Protein phosphatase 2A (PP2A) is a heterotrimeric serine/threonine phosphatase that has multiple inhibitory roles in cell proliferation and metastasis and promotes tumor suppressor activity. Protein methylesterase 1 (PME-1) inhibits PP2A through the removal of a methyl group from its catalytic subunit. Here, we discuss emerging reports that (1) PME-1 is(More)
Protein phosphatase 2A (PP2A) negatively regulates tumorigenic signaling pathways, in part, by supporting the function of tumor suppressors like p53. The PP2A methylesterase PME-1 limits the activity of PP2A by demethylating its catalytic subunit. Here, we report the finding that PME-1 overexpression correlates with increased cell proliferation and invasive(More)
When compared to spleen or lymph node cells, resident peritoneal cavity cells respond poorly to T-cell activation in vitro. The greater proportional representation of macrophages in this cell source has been shown to actively suppress the T-cell response. Peritoneal macrophages exhibit an immature phenotype (MHC class IIlo, B7lo) that reduces their efficacy(More)
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