Search results for " cell surface"

showing 10 items of 154 documents

Antibody-mediated blockade of JMJD6 interaction with collagen I exerts antifibrotic and antimetastatic activities

2017

JMJD6 is known to localize in the nucleus, exerting histone arginine demethylase and lysyl hydroxylase activities. A novel localization of JMJD6 in the extracellular matrix, resulting from its secretion as a soluble protein, was unveiled by a new anti-JMJD6 mAb called P4E11, which was developed to identify new targets in the stroma. Recombinant JMJD6 binds with collagen type I (Coll-I), and distinct JMJD6 peptides interfere with collagen fibrillogenesis, collagen-fibronectin interaction, and adhesion of human tumor cells to the collagen substrate. P4E11 and collagen binding to JMJD6 are mutually exclusive because the amino acid sequences of JMJD6 necessary for the interaction with Coll-I ar…

0301 basic medicineMonoclonal antibodyXenograft Model Antitumor AssayArginineLysyl hydroxylaseEnzyme-Linked Immunosorbent AssayReceptors Cell SurfacePlasma protein bindingBiochemistryCollagen Type IExtracellular matrix03 medical and health sciencesMiceFibrosisPeptide LibraryCell Line TumormedicineGeneticsAnimalsHumansOsteonectinCell NucleuMolecular BiologyCell NucleusMice KnockoutMice Inbred BALB CbiologyChemistryJmjC familyAnimalAntibodies MonoclonalFibrillogenesisExtracellular matrixmedicine.diseaseXenograft Model Antitumor AssaysImmunohistochemistryCell biologyIn vivo treatment030104 developmental biologybiology.proteinOsteonectinSignal transductionExtracellular matrix; In vivo treatment; JmjC family; Monoclonal antibody; Peptide library; Animals; Antibodies Monoclonal; Cell Line Tumor; Cell Nucleus; Collagen Type I; Enzyme-Linked Immunosorbent Assay; Extracellular Matrix; Humans; Immunohistochemistry; Mice; Mice Inbred BALB C; Mice Knockout; Osteonectin; Peptide Library; Protein Binding; Receptors Cell Surface; Signal Transduction; Xenograft Model Antitumor Assays; Biotechnology; Biochemistry; Molecular Biology; GeneticsHumanProtein BindingSignal TransductionBiotechnology
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Alterations in reelin and reelin receptors in Down syndrome.

2019

Reelin is an extracellular matrix glycoprotein that modulates synaptic function and plasticity, with a crucial role in neuronal migration. Changes in the expression of this protein have been reported in neurodegenerative diseases, such as Alzheimer's disease (AD). This molecule is produced by Cajal-Retzius neurons during development and by inhibitory neurons in the adult nervous system. Individuals with Down syndrome (DS) present an early development of AD; therefore, we analyzed the alterations in this molecule and its receptors in the murine model for DS Ts65Dn as well as in human with DS. We performed immunofluorescence analysis for reelin and its receptors very-low-density lipoprotein r…

0301 basic medicineNervous systemAdultMaleReceptor expressionCell Adhesion Molecules NeuronalNerve Tissue ProteinsReceptors Cell SurfaceTissue BanksInhibitory postsynaptic potential03 medical and health sciencesMice0302 clinical medicinemedicineAnimalsHumansReelinReceptorLDL-Receptor Related ProteinsAgedTemporal cortexNeuronsExtracellular Matrix ProteinsbiologyCell adhesion moleculeGeneral NeuroscienceSerine EndopeptidasesMiddle AgedTemporal LobeCell biologyDisease Models AnimalReelin Protein030104 developmental biologymedicine.anatomical_structurenervous systemReceptors LDLbiology.proteinDown Syndrome030217 neurology & neurosurgeryLipoproteinNeuroreport
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TEM8/ANTXR1-Specific CAR T Cells as a Targeted Therapy for Triple-Negative Breast Cancer.

2018

Abstract Triple-negative breast cancer (TNBC) is an aggressive disease lacking targeted therapy. In this study, we developed a CAR T cell–based immunotherapeutic strategy to target TEM8, a marker initially defined on endothelial cells in colon tumors that was discovered recently to be upregulated in TNBC. CAR T cells were developed that upon specific recognition of TEM8 secreted immunostimulatory cytokines and killed tumor endothelial cells as well as TEM8-positive TNBC cells. Notably, the TEM8 CAR T cells targeted breast cancer stem–like cells, offsetting the formation of mammospheres relative to nontransduced T cells. Adoptive transfer of TEM8 CAR T cells induced regression of established…

0301 basic medicineOncologyCancer ResearchAdoptive cell transfermedicine.medical_specialtyLung Neoplasmsmedicine.medical_treatmentT-LymphocytesCell- and Tissue-Based TherapyReceptors Antigen T-CellApoptosisReceptors Cell SurfaceTriple Negative Breast NeoplasmsTargeted therapy03 medical and health sciencesMice0302 clinical medicineBreast cancerAntigenInternal medicineBiomarkers TumorTumor Cells CulturedMedicineAnimalsHumansTriple-negative breast cancerCell Proliferationbusiness.industryMicrofilament ProteinsCancerImmunotherapyTriple Negative Breast Neoplasmsmedicine.diseasePrognosisXenograft Model Antitumor AssaysNeoplasm ProteinsSurvival Rate030104 developmental biologyOncology030220 oncology & carcinogenesisCase-Control StudiesFemaleImmunotherapybusinessFollow-Up StudiesCancer research
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Elastin-derived peptide VGVAPG affects the proliferation of mouse cortical astrocytes with the involvement of aryl hydrocarbon receptor (Ahr), peroxi…

2019

Abstract During aging and ischemic and hemorrhagic stroke, elastin molecules are degraded and elastin-derived peptides are released into the brain microenvironment. Val-Gly-Val-Ala-Pro-Gly (VGVAPG) is a repeating hexapeptide in the elastin molecule. It is well documented that the peptide sequence binds with high affinity to elastin-binding protein (EBP) located on the cell surface, thereby transducing a molecular signal into the cell. The aim of our study was to investigate whether EBP, aryl hydrocarbon receptor (Ahr), and peroxisome proliferator-activated receptor gamma (Pparγ) are involved in VGVAPG-stimulated proliferation. Primary astrocytes were maintained in DMEM/F12 medium without ph…

0301 basic medicineProliferationPeroxisome proliferator-activated receptorBiochemistryMice0302 clinical medicinePregnancyImmunology and AllergyRNA Small InterferingReceptorPeptide sequenceCells Culturedchemistry.chemical_classificationEstradiolbiologyChemistryHematologyElastin-derived peptidesCell biologymedicine.anatomical_structure030220 oncology & carcinogenesisFemaleRNA Interferencemedicine.symptomAstrocyteOligopeptidesAstrocyteImmunologyReceptors Cell SurfaceS100 Calcium Binding Protein beta SubunitPparγ03 medical and health sciencesOxazinesmedicineAnimalsMolecular BiologyCell ProliferationAryl hydrocarbon receptorElastinPPAR gammaKi-67 Antigen030104 developmental biologyReceptors Aryl HydrocarbonXanthenesMechanism of actionVGVAPGAstrocytesbiology.proteinElastinFetal bovine serumCytokine
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Impact of Elastin-Derived Peptide VGVAPG on Matrix Metalloprotease-2 and -9 and the Tissue Inhibitor of Metalloproteinase-1, -2, -3 and -4 mRNA Expre…

2018

Degradation products of elastin, i.e. elastin-derived peptides (EDPs), are involved in various physiological and pathological processes. EDPs are detectable in cerebrospinal fluid in healthy people and in patients after ischemic stroke. However, to date, no studies concerning the role of EDP in the nervous system were conducted. Matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) play important roles during the repair phases of cerebral ischemia, particularly during angiogenesis and reestablishment of cerebral blood flow. Therefore, the aim of this study was to investigate the impact of the specific elastin-derived peptide VGVAPG on Mmp-2, -9 and Timp-1, -2,…

0301 basic medicineTIMPsAngiogenesisGene ExpressionApoptosisReceptors Cell SurfaceMatrix metalloproteinaseToxicology03 medical and health sciencesMice0302 clinical medicineGlial cellsAnimalsRNA MessengerCells CulturedCerebral CortexGene knockdownbiologyL-Lactate DehydrogenaseMMP-2ChemistryCaspase 3General NeuroscienceTissue Inhibitor of MetalloproteinasesTissue inhibitor of metalloproteinasebeta-GalactosidaseIn vitroMatrix MetalloproteinasesCell biologyElastin-derived peptides030104 developmental biologyApoptosisVGVAPGbiology.proteinOriginal ArticleMMP-9ElastinNeurogliaOligopeptides030217 neurology & neurosurgeryFetal bovine serumNeurotoxicity research
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Nitric oxide/cGMP signaling via guanylyl cyclase isoform 1 modulates glutamate and GABA release in somatosensory cortex of mice

2017

Abstract In hippocampus, two guanylyl cyclases (NO-GC1 and NO-GC2) are involved in the transduction of the effects of nitric oxide (NO) on synaptic transmission. However, the respective roles of the NO-GC isoforms on synaptic transmission are less clear in other regions of the brain. In the present study, we used knock-out mice deficient for the NO-GC1 isoform (NO-GC1 KO) to analyze its role in the glutamatergic and GABAergic neurotransmission at pyramidal neurons in layers II/III of somatosensory cortex. NO-GC1 KO slices revealed reduced frequencies of miniature excitatory- and inhibitory-postsynaptic currents, increased paired-pulse ratios and decreased input–output curves of evoked signa…

0301 basic medicineendocrine systemgenetic structuresGlutamic AcidReceptors Cell SurfaceAMPA receptorBiologyNeurotransmissionNitric OxideInhibitory postsynaptic potentialHippocampusSynaptic Transmission03 medical and health sciencesGlutamatergicSoluble Guanylyl Cyclase0302 clinical medicineAnimalsCyclic GMPgamma-Aminobutyric AcidMice KnockoutGeneral NeuroscienceGlutamate receptorSomatosensory CortexCell biology030104 developmental biologyGuanylate CyclaseSynapsesExcitatory postsynaptic potentialNMDA receptorGABAergicNeuroscience030217 neurology & neurosurgeryNeuroscience
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Pharmacological activation of CB2 receptors counteracts the deleterious effect of ethanol on cell proliferation in the main neurogenic zones of the a…

2015

Chronic alcohol exposure reduces endocannabinoid activity and disrupts adult neurogenesis in rodents, which results in structural and functional alterations. Cannabinoid receptor agonists promote adult neural progenitor cell (NPC) proliferation. We evaluated the protective effects of the selective CB1 receptor agonist ACEA, the selective CB2 receptor agonist JWH133 and the fatty-acid amide-hydrolase (FAAH) inhibitor URB597, which enhances endocannabinoid receptor activity, on NPC proliferation in rats with forced consumption of ethanol (10%) or sucrose liquid diets for 2 weeks. We performed immunohistochemical and stereological analyses of cells expressing the mitotic phosphorylation of his…

:Phenomena and Processes::Physiological Phenomena::Physiological Processes::Growth and Development::Morphogenesis::Embryonic and Fetal Development::Organogenesis::Neurogenesis [Medical Subject Headings]CB1 receptorTubulina (proteína)Cannabinoid receptorCarbamatosEtanol:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::Nuclear Proteins::Histones [Medical Subject Headings]Ventrículos lateralesSacarosaNeuronasSubgranular zone0302 clinical medicine:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::Membrane Proteins::Receptors Cell Surface::Receptors G-Protein-Coupled::Receptors Cannabinoid::Receptor Cannabinoid CB1 [Medical Subject Headings]Histonas:Chemicals and Drugs::Organic Chemicals::Carboxylic Acids::Acids Acyclic::Carbamates [Medical Subject Headings]Receptor cannabinoide CB1Cannabinoid receptor type 2:Organisms::Eukaryota::Animals [Medical Subject Headings]:Phenomena and Processes::Metabolic Phenomena::Metabolism::Phosphorylation [Medical Subject Headings]:Anatomy::Cells::Stem Cells::Neural Stem Cells [Medical Subject Headings]:Anatomy::Nervous System::Neurons [Medical Subject Headings]health care economics and organizations:Anatomy::Nervous System::Central Nervous System::Brain::Cerebral Ventricles::Lateral Ventricles [Medical Subject Headings]Original Research:Chemicals and Drugs::Nucleic Acids Nucleotides and Nucleosides::Nucleosides::Deoxyribonucleosides::Deoxyuridine::Bromodeoxyuridine [Medical Subject Headings]0303 health sciencesAlcoholismoalcoholConsumo de alcoholNeurogenesis:Phenomena and Processes::Genetic Phenomena::Phenotype::Genetic Markers [Medical Subject Headings]:Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Molecular Mechanisms of Pharmacological Action::Neurotransmitter Agents::Cannabinoid Receptor Modulators::Cannabinoid Receptor Agonists [Medical Subject Headings]Benzamidas:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::Membrane Proteins::Receptors Cell Surface::Receptors G-Protein-Coupled::Receptors Cannabinoid::Receptor Cannabinoid CB2 [Medical Subject Headings]Endocannabinoid system3. Good healthbromodesoxiuridinaneurogenesisEndocannabinoidesmedicine.anatomical_structure:Chemicals and Drugs::Enzymes and Coenzymes::Enzymes::Hydrolases [Medical Subject Headings]ACEADietaAlcoholFosforilaciónAgonistmedicine.medical_specialtyHidrolasasmedicine.drug_classNeurogenesiseducation:Psychiatry and Psychology::Mental Disorders::Substance-Related Disorders::Alcohol-Related Disorders::Alcoholism [Medical Subject Headings]Subventricular zoneBiology:Phenomena and Processes::Physiological Phenomena::Nutritional Physiological Phenomena::Diet [Medical Subject Headings]:Anatomy::Nervous System::Central Nervous System::Brain::Prosencephalon::Telencephalon::Cerebrum::Cerebral Cortex::Hippocampus::Dentate Gyrus [Medical Subject Headings]lcsh:RC321-57103 medical and health sciencesCellular and Molecular NeuroscienceRatasInternal medicine:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::Nerve Tissue Proteins::Tubulin [Medical Subject Headings]JWH133medicineGiro dentadolcsh:Neurosciences. Biological psychiatry. Neuropsychiatry030304 developmental biologyCélulas madre nerviosas:Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Molecular Mechanisms of Pharmacological Action::Neurotransmitter Agents::Endocannabinoids [Medical Subject Headings]Dentate gyrusmarcadores genéticosCB2 receptor:Chemicals and Drugs::Carbohydrates::Polysaccharides::Oligosaccharides::Disaccharides::Sucrose [Medical Subject Headings]:Anatomy::Nervous System::Central Nervous System::Brain::Prosencephalon::Diencephalon::Hypothalamus [Medical Subject Headings]:Chemicals and Drugs::Organic Chemicals::Alcohols::Ethanol [Medical Subject Headings]Endocrinology:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Rodentia::Muridae::Murinae::Rats [Medical Subject Headings]nervous system:Psychiatry and Psychology::Behavior and Behavior Mechanisms::Behavior::Drinking Behavior::Alcohol Drinking [Medical Subject Headings]:Chemicals and Drugs::Organic Chemicals::Amides::Benzamides [Medical Subject Headings]030217 neurology & neurosurgeryHipotálamoNeuroscience
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Upregulation of the netrin receptor (DCC) gene during activation of b lymphocytes and modulation by interleukins.

2001

The DCC (deleted in colon cancer) gene has a brain restricted high expression pattern. It encodes a transmembrane protein of the immunoglobulin superfamily identified as the netrin-1 receptor. It might be a member of the so called "brain-lymphoid" molecules, which control key cell surface events. To test this hypothesis we have assessed the DCC mRNA level in human normal and malignant myeloid and lymphoid cells. A high mRNA content has been observed only in mature B cells at the secreting or presecreting stage. Expression of DCC was also assessed in the anti-CD40 model of immunopoiesis. Activation of purified tonsillar B cells by anti-CD 40 antibody strongly increased the DCC mRNA level and…

AdultDeleted in Colorectal CancerTranscription GeneticT-LymphocytesPalatine TonsilBiophysicsReceptors Cell SurfaceBiologyLymphocyte ActivationBiochemistryCell LineNetrin Receptor DCCDownregulation and upregulationNetrinmedicineTumor Cells CulturedHumansRNA MessengerReceptorMolecular BiologyB cellB-LymphocytesReverse Transcriptase Polymerase Chain ReactionInterleukinsTumor Suppressor ProteinsfungiBrainCell BiologyDCC ReceptorMolecular biologyInterleukin-10Up-Regulationmedicine.anatomical_structureGenes DCCCell cultureImmunoglobulin superfamilyInterleukin-2Netrin ReceptorsCell Adhesion MoleculesImmunologic MemoryMuromonab-CD3Biochemical and biophysical research communications
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Expression of the obesity hormone leptin and its receptor correlates with hypoxia-inducible factor-1 alpha in human colorectal cancer.

2007

Background: The obesity hormone, leptin, has been found to play a role in development and proliferation of normal and malignant tissues. Leptin activity is mediated through the leptin receptor (ObR) that is often expressed in different human cancer cells. Previously, we found that the expression of leptin and ObR can be stimulated by hypoxia-mimetic agents. The aim of this study was to analyze the abundance of and relationships among leptin, ObR and hypoxia-inducible factor-1α (HIF-1α, transcriptional regulator) in human colorectal cancer. Materials and methods: We investigated the expression of leptin, ObR and HIF-1 a in colorectal cancer specimens from 135 patients who underwent curative …

AdultLeptinMalemedicine.medical_specialtyColorectal cancerAdipokineReceptors Cell SurfaceInternal medicinemedicineHumansObesityReceptorAgedAged 80 and overLeptin receptorbusiness.industryLeptindigestive oral and skin physiologyHematologyMiddle Agedmedicine.diseaseHypoxia-Inducible Factor 1 alpha SubunitObesityUp-RegulationGene Expression Regulation NeoplasticEndocrinologyOncologyHypoxia-inducible factorsDisease ProgressionReceptors LeptinFemalebusinessColorectal Neoplasmshormones hormone substitutes and hormone antagonistsHormoneAnnals of oncology : official journal of the European Society for Medical Oncology
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The leptin system during human endometrial receptivity and preimplantation development.

2004

The leptin system is implicated in the regulation of body weight and reproductive function, acting at endocrine and paracrine levels. This ligand-receptor system is mandatory for embryonic implantation in rodents. Here, we investigate the expression pattern of total leptin receptor (OB-R(T)), the long form (OB-R(L)) and short isoforms HuB219.1 and HuB219.3 in the human endometrium. Furthermore, we studied leptin and OB-R(T) mRNA during human embryonic preimplantation development and the embryonic regulation of the endometrial OB-R(L). Leptin receptor expression and its isoforms increase in the luteal phase and peak in the late part. Leptin receptor was localized at the epithelial and glandu…

AdultLeptinmedicine.medical_specialtyEndocrinology Diabetes and MetabolismClinical BiochemistryReceptors Cell SurfaceBiologyEndometriumBiochemistryPolymerase Chain ReactionParacrine signallingEmbryonic and Fetal DevelopmentEndometriumEndocrinologyInternal medicinemedicineHumansProtein IsoformsBlastocystEmbryo ImplantationRNA MessengerMenstrual CycleCytotrophoblastLeptin receptorReverse Transcriptase Polymerase Chain ReactionLeptindigestive oral and skin physiologyBiochemistry (medical)DeciduaEmbryogenesisImmunohistochemistrymedicine.anatomical_structureEndocrinologyBlastocystReceptors LeptinFemalehormones hormone substitutes and hormone antagonistsThe Journal of clinical endocrinology and metabolism
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