0000000000409753

AUTHOR

V. Schinzari

showing 2 related works from this author

Human OX40 tunes the function of regulatory T cells in tumor and nontumor areas of hepatitis C virus-infected liver tissue.

2014

International audience; Regulatory T cells (Tregs) can be considered as a mixed population of distinct subsets, endowed with a diverse extent and quality of adaptation to microenvironmental signals. Here, we uncovered an opposite distribution of Treg expansion, phenotype, and plasticity in different microenvironments in the same organ (liver) derived from patients with chronic hepatitis C: On the one side, cirrhotic and tumor fragments were moderately and highly infiltrated by Tregs, respectively, expressing OX40 and a T-bet high IFN-c – " T-helper (Th)1-suppressing " phenotype; on the other side, noncirrhotic liver specimens contained low frequencies of Tregs that expressed low levels of O…

MESH: Receptors OX40/metabolism*MESH: Interleukin-12/metabolismLiver CirrhosisMaleMacrophagemedicine.disease_causeMESH: Carcinoma Hepatocellular/immunology*T-Lymphocytes RegulatoryMESH: OX40 Ligand/metabolism0302 clinical medicineMESH: Aged 80 and overMESH: T-Lymphocytes Regulatory/physiology*MESH: Up-RegulationOX40MESH: AgedAged 80 and over0303 health scienceseducation.field_of_studyT REGMESH: Middle AgedMedicine (all)MESH: Liver Cirrhosis/immunology*Liver Neoplasmshemic and immune systemsMiddle AgedMESH: Liver Neoplasms/immunology*PhenotypeHepatitis CInterleukin-123. Good healthUp-RegulationPhenotypeLiver Neoplasm[SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/VirologyInterleukin 12[SDV.IMM]Life Sciences [q-bio]/ImmunologyFemalemedicine.symptomMESH: Hepatitis C/immunology*OX40; T REG; HEPATITIS C VIRUSHumanmedicine.medical_specialtyCarcinoma HepatocellularHepatitis C virusLiver CirrhosiPopulationInflammationchemical and pharmacologic phenomena[SDV.CAN]Life Sciences [q-bio]/CancerOX40 LigandBiologyMESH: PhenotypeMESH: Liver Neoplasms/virology03 medical and health sciencesIkaros Transcription FactorDownregulation and upregulationInternal medicinemedicineHumansMESH: Macrophages/metabolismeducation030304 developmental biologyAgedMESH: HumansHepatologyMacrophagesHEPATITIS C VIRUSMESH: Carcinoma Hepatocellular/virologyHepatologyReceptors OX40MESH: Ikaros Transcription Factor/metabolismMESH: Hepatitis C/complicationsMESH: MaleOX40 ligandImmunologyMESH: Liver Cirrhosis/virologyMESH: Female030215 immunology
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Transcriptional regulation of miR-224 upregulated in human HCCs by NFκB inflammatory pathways

2012

Background & Aims: miR-224 is up-regulated in human HCCs as compared to both paired peri-tumoral cirrhotic tissues and cirrhotic livers without HCC. Here, we have cloned the miR-224 regulatory region and characterized its transcriptional regulation by the NFκB-dependent inflammatory pathways. Methods: Mature miRNA expression was evaluated by a 2 step stem-loop real-time RT-PCR. The recruitment of polymerase II and transcription factors on the pre-miR-224 promoter has been assessed by ChIPSeq and ChIP. Results: We found miR-224 levels strongly up-regulated in both peri-tumoral cirrhotic livers and HCC samples as compared to normal livers. In silico analysis of the putative miR-224 promoter r…

LipopolysaccharidesLiver CirrhosisMaleCarcinoma HepatocellularTranscription GeneticLiver CirrhosiLipopolysaccharideBiologyCell MovementCell Line TumormicroRNATranscriptional regulationHumansNF kappa BHCCmir-224; nfκb; hcc; mirnas; transcriptionTranscription factorLymphotoxin-alphamiRNAAgedHepatologymiRNAs; HCC; miR-224; Transcription; NF kappa BTumor Necrosis Factor-alphaLiver NeoplasmsNF-kappa BMicroRNAmiR-224HCCSMiddle AgedNFKB1Up-RegulationMicroRNAsIκBαLiverLiver NeoplasmCase-Control StudiesImmunologymiRNAsCancer researchTumor necrosis factor alphaFemaleSignal transductionCase-Control StudieTranscriptionNFκBHumanSignal Transduction
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