BackgroundThe role of activating transcription factor 4 (ATF4) underlying gastric cancer (GC) remains unclear. The purpose of this study was to investigate the expression levels and biological functions of ATF4 in GC.MethodsExpression of ATF4 was ...
Mingliang Wang +5 more
doaj +1 more source
Activating Transcription Factor 4 Is Translationally Regulated by Hypoxic Stress [PDF]
Hypoxic stress results in a rapid and sustained inhibition of protein synthesis that is at least partially mediated by eukaryotic initiation factor 2alpha (eIF2alpha) phosphorylation by the endoplasmic reticulum (ER) kinase PERK. Here we show through microarray analysis of polysome-bound RNA in aerobic and hypoxic HeLa cells that a subset of ...
Jaime D, Blais +7 more
openaire +2 more sources
Activating transcription factor 4-dependent lactate dehydrogenase activation as a protective response to amyloid beta toxicity. [PDF]
Abstract Accumulation of amyloid beta peptides is thought to initiate the pathogenesis of Alzheimer's disease. However, the precise mechanisms mediating their neurotoxicity are unclear. Our microarray analyses show that, in Drosophila models of amyloid beta 42 toxicity, genes involved in the unfolded protein response and metabolic ...
Niccoli T +10 more
europepmc +7 more sources
Regulation of Vascular Endothelial Growth Factor A by Activating Transcription Factor 4 [PDF]
To the Editor: In a recent article published in Circulation Research , Malabanan et al demonstrated that expression of vascular endothelial growth factor (VEGF)-A in response to fibroblast growth factor-2 is regulated by …
Steven F. Abcouwer, C. Nathaniel Roybal
openaire +1 more source
MicroRNA-214 Suppresses Gluconeogenesis by Targeting Activating Transcriptional Factor 4 [PDF]
Although the gluconeogenesis pathway is already a target for the treatment of type 2 diabetes, the potential role of microRNAs (miRNAs) in gluconeogenesis remains unclear. Here, we investigated the physiological functions of miR-214 in gluconeogenesis.
Kai, Li +8 more
openaire +2 more sources
Lipopolysaccharide induces nitric oxide synthase expression and platelet-activating factor increases nitric oxide production in human fetal membranes in culture [PDF]
Platelet-activating factor and nitric oxide may be involved in the initiation of human labour as inflammatory mediators. The aim of this study was to test whether platelet-activating factor and lipopolysaccharide were able to induce nitric oxide synthase
Damian J Murphy +17 more
core +1 more source
DNA binding and transcription activation specificity of hepatocyte nuclear factor 4 [PDF]
Hepatocyte nuclear factor 4 (HNF-4) is an orphan intracellular receptor that appears to be a key factor in the regulation of energy metabolism. In order to gain greater understanding of the binding and activation requirements of HNF-4, we performed genetic analysis of the apoCIII promoter, a promoter that has previously been shown to be highly ...
J D, Fraser +3 more
openaire +2 more sources
Effect of montelukast on platelet activating factor- and tachykinin induced mucus secretion in the rat [PDF]
Background: Platelet activating factor and tachykinins (substance P, neurokinin A, neurokinin B) are important mediators contributing to increased airway secretion in the context of different types of respiratory diseases including acute and chronic ...
David A Groneberg +12 more
core +1 more source
Background & Aims: Sepsis-induced acute liver dysfunction often occurs early in sepsis and can exacerbate the pathology by triggering multiple organ dysfunction and increasing lethality.
Gan Chen +12 more
doaj +1 more source
Mitosin/CENP-F as a Negative Regulator of Activating Transcription Factor-4 [PDF]
Mitosin/CENP-F is a human nuclear matrix protein with multiple leucine zipper motifs. Its accumulation in S-G2 phases and transient kinetochore localization in mitosis suggest a multifunctional protein for cell proliferation. Moreover, its murine and avian orthologs are implicated in myocyte differentiation.
Xubin, Zhou +8 more
openaire +2 more sources

