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Targeting Aberrant Glutathione Metabolism to Eradicate Human Acute Myelogenous Leukemia Cells*
TLDR
It is demonstrated that primitive leukemia cells are uniquely sensitive to agents that target aberrant glutathione metabolism, an intrinsic property of primary human AML cells.
Characterization of a UDP-GalNAc:Polypeptide N-Acetylgalactosaminyltransferase That Displays Glycopeptide N-Acetylgalactosaminyltransferase Activity*
TLDR
The cloning, expression, and characterization of a novel member of the mammalian UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase (ppGaNTase) family that transfers Gal NAc to a GalNAc-containing glycopeptide is reported, suggesting thatO-glycosylation of multisite substrates may proceed in a specific hierarchical manner and underscores the potential complexity of the processes that regulate O-glyCosylation.
Cloning and Characterization of a Ninth Member of the UDP-GalNAc:Polypeptide N-Acetylgalactosaminyltransferase Family, ppGaNTase-T9*
TLDR
Northern blot analysis revealed that the gene encoding this enzyme is expressed in a broadly distributed manner across many adult tissues, lending further support to the existence of a hierarchical network of differential enzymatic activity within the diversely regulated ppGaNTase family, which may play a role in the various processes governing development.
Cloning and Expression of a Novel, Tissue Specifically Expressed Member of the UDP-GalNAc:Polypeptide N-Acetylgalactosaminyltransferase Family*
TLDR
The cloning and expression of the fifth member of the mammalian UDP-GalNAc:polypeptideN-acetylgalactosaminyltransferase (ppGaNTase) family is reported, highlighting the diversity and complexity of the family of genes controllingO-linked glycosylation.
Selective Activity of the Histone Deacetylase Inhibitor AR-42 against Leukemia Stem Cells: A Novel Potential Strategy in Acute Myelogenous Leukemia
TLDR
AR-42 (OSU-HDAC42), a novel histone deacetylase inhibitor that is structurally similar to phenylbutyrate, but with improved activity at submicromolar concentrations, is identified and induces NF-κB inhibition, disrupts the ability of Hsp90 to stabilize its oncogenic clients, and causes potent and specific cell death of LSCs but not normal hematopoietic stem and progenitor cells.
Chemical genomic screening reveals synergism between parthenolide and inhibitors of the PI-3 kinase and mTOR pathways.
TLDR
Exposure to the combination of PTL and phosphatidylinositol 3-kinase/mammalian target of rapamycin inhibitors significantly decreased viability of AML cells and reduced tumor burden in vitro and in murine xenotransplantation models.
cDNA Cloning and Expression of a Novel UDP-N-acetyl-d-galactosamine:PolypeptideN-Acetylgalactosaminyltransferase*
The cDNA for a fourth member of the mammalian UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase family, termed ppGaNTase-T4, has been cloned from a murine spleen cDNA library and expressed
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