Search Results - "Oaks, Joshua J"
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Binding of the sphingolipid S1P to hTERT stabilizes telomerase at the nuclear periphery by allosterically mimicking protein phosphorylation
Published in Science signaling (16-06-2015)“…During DNA replication, the enzyme telomerase maintains the ends of chromosomes, called telomeres. Shortened telomeres trigger cell senescence, and cancer…”
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PP2A-activating drugs selectively eradicate TKI-resistant chronic myeloid leukemic stem cells
Published in The Journal of clinical investigation (01-10-2013)“…The success of tyrosine kinase inhibitors (TKIs) in treating chronic myeloid leukemia (CML) depends on the requirement for BCR-ABL1 kinase activity in CML…”
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miR-328 Functions as an RNA Decoy to Modulate hnRNP E2 Regulation of mRNA Translation in Leukemic Blasts
Published in Cell (05-03-2010)“…MicroRNAs and heterogeneous ribonucleoproteins (hnRNPs) are posttranscriptional gene regulators that bind mRNA in a sequence-specific manner. Here, we report…”
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The NMR‐based characterization of the FTY720‐SET complex reveals an alternative mechanism for the attenuation of the inhibitory SET‐PP2A interaction
Published in The FASEB journal (01-06-2019)“…ABSTRACT The su(var)3‐9, enhancer of zeste, trithorax (SET)/inhibitor 2 of protein phosphatase 2A (PP2A) oncoprotein binds and inhibits PP2A, composed of…”
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Preclinical and clinical efficacy of XPO1/CRM1 inhibition by the karyopherin inhibitor KPT-330 in Ph+ leukemias
Published in Blood (24-10-2013)“…As tyrosine kinase inhibitors (TKIs) fail to induce long-term response in blast crisis chronic myelogenous leukemia (CML-BC) and Philadelphia…”
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Antagonistic activities of the immunomodulator and PP2A-activating drug FTY720 (Fingolimod, Gilenya) in Jak2-driven hematologic malignancies
Published in Blood (12-09-2013)“…FTY720 (Fingolimod, Gilenya) is a sphingosine analog used as an immunosuppressant in multiple sclerosis patients. FTY720 is also a potent protein phosphatase…”
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FTY720, a new alternative for treating blast crisis chronic myelogenous leukemia and Philadelphia chromosome-positive acute lymphocytic leukemia
Published in The Journal of clinical investigation (01-09-2007)“…Blast crisis chronic myelogenous leukemia (CML-BC) and Philadelphia chromosome-positive (Ph1-positive) acute lymphocytic leukemia (ALL) are 2 fatal…”
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Silvestrol exhibits significant in vivo and in vitro antileukemic activities and inhibits FLT3 and miR-155 expressions in acute myeloid leukemia
Published in Journal of hematology and oncology (16-03-2013)“…Activating mutations [internal tandem duplication (ITD)] or overexpression of the FMS-like tyrosine kinase receptor-3 (FLT3) gene are associated with poor…”
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Identification of novel posttranscriptional targets of the BCR/ABL oncoprotein by ribonomics: requirement of E2F3 for BCR/ABL leukemogenesis
Published in Blood (15-01-2008)“…Several RNA binding proteins (RBPs) have been implicated in the progression of chronic myelogenous leukemia (CML) from the indolent chronic phase to the…”
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Anti-Leukemic Activity of the CRM1 Inhibitor KPT-330 in Advanced CML and Ph+ ALL
Published in Blood (16-11-2012)“…Abstract 35 As tyrosine kinase inhibitors (TKIs) do not induce long-term response in blast crisis chronic myeloid leukemia (CML-BC) or Philadelphia…”
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Abstract 3839: Nuclear export (karyopherin) inhibitors: A novel therapeutic strategy for treating Philadelphia-positive (Ph+) acute leukemias
Published in Cancer research (Chicago, Ill.) (15-04-2012)“…Tyrosine kinase inhibitor (TKI)-based therapies do not induce long-term response in myeloid or lymphoid blast crisis (BC) chronic myelogenous leukemia (CML)…”
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Nuclear Export (Karyopherin) Inhibitors: A Novel Therapeutic Strategy for Treating Blast Crisis Chronic Myelogenous Leukemia (CML) and Philadelphia-Positive (Ph+) Acute Lymphoblastic Leukemia (ALL) Through Interference with hnRNP Nucleocytoplasmic Shuttling and Rescue of Protein Phosphatase 2A (PP2A) Tumor Suppressor Activity
Published in Blood (18-11-2011)“…Abstract 3758 Despite the remarkable response in chronic phase CML, tyrosine kinase inhibitor (TKI)-based therapies do not induce long-term response in myeloid…”
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The BCR-ABL1-Regulated hnRNP A1, hnRNP E2, and hnRNP K Are Differentially Expressed Between CD34+ and CD34+/CD38- Ph+ Cells, and After Blastic Transformation of CML
Published in Blood (19-11-2010)“…Abstract 1222 The molecular mechanism leading to disease progression of chronic myelogenous leukemia (CML) still remains to be identified although enhanced…”
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Activating PP2A Tumor Suppressor Activity as a Potential Therapy for Treating Jak2 V617F-Driven Myeloproliferative Disorders
Published in Blood (16-11-2007)“…Polycythemia vera (PV) is a myeloproliferative disorder (MPD) caused by a valine to phenylalanine mutation in the inhibitory JH2 “pseudokinase” domain of the…”
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FTY720 Restores PP2A Tumor Suppressor Activity in Polycythemia Vera CD34+ Progenitors Through Inhibition of Jak2 V617F- and PI-3Kγ-Dependent SET Serine Phosphorylation and Enhancement of NOS-Dependent PP2A Tyrosine Nitration
Published in Blood (18-11-2011)“…Abstract 2494 In CD34+ bone marrow (BM) progenitors from Polycythemia Vera (PV) patients and Jak2V617F-expressing cell lines, loss of protein phosphatase 2A…”
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PP2A Activating Drugs (PAD): Anti-Leukemic and Non-Toxic Activity of Two Novel and Non-Immunosuppressive FTY720 Derivatives
Published in Blood (19-11-2010)“…Abstract 2901 FTY720 is a sphingosine analog proposed by the FDA for treating Multiple Sclerosis patients because of its immunosuppressive activity, which…”
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Pharmacologic Restoration of PP2A Activity and Interference with the SET-PP2A Interplay by FTY720 and Its Non-Immunosuppressive Derivative as a Novel and Efficient Therapy for Ph-Negative Myeloproliferative Disorders
Published in Blood (19-11-2010)“…Abstract 775 We have shown (Oaks JJ et al. ASH 2009) that the tumor suppressor Protein Phosphatase 2A (PP2A) is functionally inactivated by Jak2V617F in cell…”
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BCR-ABL1 Kinase Activity but Not Its Expression Is Dispensable for Ph+ Quiescent Stem Cell Survival Which Depends on the PP2A-Controlled Jak2 Activation and Is Sensitive to FTY720 Treatment
Published in Blood (19-11-2010)“…Abstract 515 The success of tyrosine kinase inhibitors as first line therapy for t(9;22) Chronic Myelogenous Leukemia (CML) depends on the addiction that…”
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Abstract 1950: Suppression of RISC-independent decoy and RISC-mediated RNA-pairing activities of microRNA-328 is required for maturation-arrest and enhanced survival of blast crisis CML progenitors
Published in Cancer research (Chicago, Ill.) (15-04-2010)“…MicroRNAs (miRs) and heterogeneous ribonucleoproteins (hnRNPs) are post-transcriptional gene regulators that bind to mRNA in a sequence-specific manner. We…”
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Requirement of the E2F3 Transcription Factor for BCR/ABL Leukemogenesis
Published in Blood (16-11-2007)“…Several RNA binding proteins (RBPs) have been implicated in the progression of chronic myelogenous leukemia (CML) from the indolent chronic phase to the…”
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