Search results for "ATF6"

showing 3 items of 13 documents

Is Autophagy Altered in the Leukocytes of Type 2 Diabetic Patients?

2015

It is unknown whether autophagy is altered in the leukocytes of type 2 diabetes (T2D) patients and whether oxidative and endoplasmic reticulum (ER) stresses regulate this mechanism. We studied anthropometric and metabolic parameters and evaluated oxidative stress, chromatin condensation, ER stress, and autophagy parameters in leukocytes of 103 T2D patients versus 109 sex- and age-matched controls. Patients showed increases in glucose, insulin, homeostasis model assessment of insulin resistance, and glycated hemoglobin (HbA1c) compared with controls (p < 0.001). Leukocytes displayed enhanced total and mitochondrial reactive oxygen species (ROS), reduced mitochondrial mass, and increased chro…

Malemedicine.medical_specialtyCell Nucleus ShapePhysiologymedicine.medical_treatmentClinical BiochemistryBiologymedicine.disease_causeBiochemistryInsulin resistanceInternal medicinemedicineAutophagyLeukocytesHumansMolecular BiologyEndoplasmic Reticulum Chaperone BiPGeneral Environmental ScienceAgedchemistry.chemical_classificationReactive oxygen speciesATF6Endoplasmic reticulumInsulinAutophagyCell BiologyMiddle Agedmedicine.diseaseEndoplasmic Reticulum StressOxidative StressEndocrinologychemistryDiabetes Mellitus Type 2Case-Control StudiesUnfolded protein responseGeneral Earth and Planetary SciencesFemaleReactive Oxygen SpeciesOxidation-ReductionOxidative stressSignal TransductionAntioxidantsredox signaling
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Mitochondrial dynamics in type 2 diabetes: Pathophysiological implications

2017

Mitochondria play a key role in maintaining cellular metabolic homeostasis. These organelles have a high plasticity and are involved in dynamic processes such as mitochondrial fusion and fission, mitophagy and mitochondrial biogenesis. Type 2 diabetes is characterised by mitochondrial dysfunction, high production of reactive oxygen species (ROS) and low levels of ATP. Mitochondrial fusion is modulated by different proteins, including mitofusin-1 (MFN1), mitofusin-2 (MFN2) and optic atrophy (OPA-1), while fission is controlled by mitochondrial fission 1 (FIS1), dynamin-related protein 1 (DRP1) and mitochondrial fission factor (MFF). PARKIN and (PTEN)-induced putative kinase 1 (PINK1) partici…

MiD51 mitochondrial dynamics proteins of 51 kDaΔΨm mitochondrial membrane potential0301 basic medicineMitochondrial fission factorClinical BiochemistryMitochondrial DegradationMFN2Review ArticleTXNIP thioredoxin interacting proteinMitochondrial DynamicsBiochemistryAdenosine TriphosphateGRP78 78 kDa glucose-regulated proteinMFF mitochondrial fission factorMFN2 mitofusin 2TRX2 thioredoxin 2Redox biologylcsh:QH301-705.5NF-κB nuclear factor kappa Blcsh:R5-920MitophagyType 2 diabetesDRP1 dynamin-related protein 1FIS1 fission protein 1BNIP3 BCL2/adenovirus E1B 19 kDa interacting protein 3MitochondriaOPA1 optic atrophy 1SIRT1/3 sirtuin 1/3Biochemistrymitochondrial fusionTGF-β1 transforming growth factor-β1Mitochondrial fissionOMM outer mitochondrial membranelcsh:Medicine (General)MiD49 mitochondrial dynamics proteins of 49Nox 4 NADPH oxidase-4IMM inner mitochondrial membraneFIS1ATF6 activating transcription factor 6PINK1mTOR mammalian target of rapamycinCHOP C/EBP homologous proteinBiologymdivi-1 mitochondrial division inhibitor-1Mitochondrial Proteins03 medical and health sciencesROS reactive oxygen speciessXBP1 spliced X-box binding protein 1UCP-1 uncoupling protein-1MFN1 mitofusin 1SOD superoxide dismutaseLC3 1 A/1B-light chain 3HumansPINK1 (PTEN)-induced putative kinase 1S3 15-OxospiramilactoneOrganic ChemistrymtDNA mitochondrial DNAAMPK AMP-activated protein kinase030104 developmental biologyDiabetes Mellitus Type 2Mitochondrial biogenesislcsh:Biology (General)Oxidative stressp38 MAPK p38 mitogen-activated protein kinasep62/SQSTM1 ubiquitin and sequestosome-1Reactive Oxygen SpeciesRedox Biology
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UNRAVELLING THE ROLES OF THE NUCLEAR PROTEIN 1 DURING ER-STRESS INDUCTION

2020

Background: NUPR1 was described as a transcriptional factor involved in the regulation of various cellular stress-response genes, playing a crucial role in the condition of the endoplasmic-reticulum (ER) stress, thus emerging as a common molecular factor of different pathologies, obesity, hepatic steatosis, and cancer. In the present work we aim to explore how NUPR1 interacts with some pivotal genes that are the major modulators of the ER stress and metabolic cell functions. In particular we investigated the biochemical and molecular effects arising from the loss of NUPR1 in ER stress physiological conditions. Methods: We used prolonged high fat diet (HFD) feeding to induce ER stress physio…

Settore MED/06 - Oncologia MedicaNuclear protein 1 P8 NUPR1 ER stress ATF6 PERK EIF2alfa cancer obesity hepatic steatosis mouse model metabolism geneSettore BIO/11 - Biologia Molecolare
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