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416 Newest Publications of Portland Press

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A quantitative proteomics-based signature of platinum sensitivity in ovarian cancer cell lines

19-11-2014 | Fan G; Wrzeszczynski K; Fu C; Su G; Pappin D; Lucito R; Tonks N, Biochemical Journal, 2014

Although DNA encodes the molecular instructions that underlie control of cell function, it is the proteins that are primarily responsible for implementing those instructions. Therefore, quantitative analyses of the proteome would be expected to yield insights into important candidates for the ...

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{Less than}i{Greater than}Plasmodium falciparum{Less than}/i{Greater than} mitochondria import tRNAs along with {Soft hyphen}{Soft hyphen}{Soft hyphen}{Soft hyphen}an active phenylalanyl-tRNA synthetase{Soft hyphen}{Soft hyphen}{Soft hyphen}{Soft hyphen}

13-11-2014 | Sharma A, Biochemical Journal, 2014

Plasmodium falciparum protein translation enzymes aminoacyl-tRNA synthetases (aaRSs) are an emergent family of drug targets. The aaRS ensemble catalyzes transfer of amino acids to cognate transfer RNAs (tRNAs), thus providing charged tRNAs for ribosomal consumption. P. falciparum proteome ...

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C/EBP homologous protein (CHOP) contributes to hepatocyte death via the promotion of ERO1{alpha} signaling in acute liver failure

11-11-2014 | Rao J; Zhang C; Wang P; Lu L; Qian X; Qin J; Pan X; Li G; Wang X; Zhang F, Biochemical Journal, 2014

C/EBP Homologous Protein (CHOP) has been shown to be a key molecule in endoplasmic reticulum (ER) stress-mediated apoptosis. ERO1α, a target of CHOP, is an important oxidizing enzyme to regulate ROS, which play a prominent role in hepatocellular death during acute liver failure (ALF). However, ...

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Epithelial MUC1/Muc1 Promotes Cell migration, Reduces Apoptosis and Affects Levels of Mucosal Modulators During Acetylsalicylic Acid (Aspirin) Induced Gastropathy.{Less than}i{Greater than}{Less than}/i{Greater than}

11-11-2014 | Banerjee D; Fernandez H; Patil P; Premaratne P; Quiding-J{a}rbrink M; Lind{e}n S, Biochemical Journal, 2014

MUC1 is a transmembrane mucin highly expressed in the stomach. While extensive research has uncovered many of its roles in cancer, knowledge about the functions of MUC1 in normal tissues is limited. Here we showed that acetylsalicylic acid (Aspirin, ASA) upregulated MUC1/Muc1 expression in the ...

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Application of a novel regulatable Cre recombinase system to define the role of liver and gut metabolism in drug oral bioavailability

07-11-2014 | Henderson C; McLaughlin L; Osuna-Cabello M; Taylor M; Gilbert I; McLaren A; Wolf C, Biochemical Journal, 2014

The relative contribution of hepatic versus intestinal oxidative metabolism is a crucial factor in drug oral bioavailability and therapeutic efficacy. Oxidative metabolism is mediated by the cytochrome P450 mono-oxygenase system to which cytochrome P450 reductase (POR) is the essential electron ...

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AP2 suppresses osteoblast differentiation and mineralization through down-regulation of Frizzled-1

04-11-2014 | Yu S; Yerges-Armstrong L; Chu Y; Zmuda J; Zhang Y, Biochemical Journal, 2014

Transcription factor activating protein 2 (AP2) plays an important role in cellular differentiation. Although profound craniofacial and long bone developmental abnormalities have been observed in AP2 knockout mice, the molecular effects of AP2 on osteoblasts are poorly defined. We demonstrated ...

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Exchange Protein Directly Activated by cAMP (EPAC1) Modulates Regulatory T Cell-Mediated Immune Suppression

23-10-2014 | Almahariq M; Mei F; Wang H; Cao A; Yao S; Soong L; Sun J; Cong Y; Chen J; Cheng X, Biochemical Journal, 2014

The cyclic adenosine monophosphate (cAMP) signaling pathway plays an essential role in immune functions. In this study we examined the role of the cAMP/EPAC1 (exchange protein directly activated by cAMP) axis in regulatory T-cell (Treg)-mediated immune suppression using genetic and pharmacologic ...

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p58(IPK) is an Inhibitor of the eIF2{alpha} Kinase GCN2 and its Localisation and Expression Underpin Protein Synthesis and ER Processing Capacity

20-10-2014 | Roobol A; Roobol J; Bastide A; Knight J; Willis A; Smales C, Biochemical Journal, 2014

One of the key cellular responses to stress is the attenuation of mRNA translation and protein synthesis via the phosphorylation of eIF2α. This is mediated by four eIF2α kinases and it has been suggested that each kinase is specific to the cellular stress imposed. Herein we show that both PERK ...

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miR-29b Modulates Intestinal Epithelium Homeostasis by Repressing Menin Translation

15-10-2014 | Ouyang M; Su W; Xiao L; Rao J; Jiang L; Li Y; Turner D; Gorospe M; Wang J, Biochemical Journal, 2014

Menin regulates distinct cellular functions by regulating gene transcription through its interaction with partner transcription factors, but the exact mechanisms that control Menin levels remain largely unknown. Here we report that Men1 mRNA, encoding Menin, is a novel target of microRNA-29b ...

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Osteopontin mediates mineralization and not osteogenic cell development {Less than}i{Greater than}in vitro{Less than}/i{Greater than}

13-10-2014 | Holm E; Gleberzon J; Liao Y; S{o}rensen E; Beier F; Hunter G; Goldberg H, Biochemical Journal, 2014

Biomineralization is a complex process in the development of mineralized tissues such as bone, and pathological calcifications such as atherosclerotic plaques, kidney stones, gout, and others. Osteopontin (OPN), an anionic phosphoprotein, is expressed in mineralizing tissues and has previously ...

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