Search results for "Lymphocyte"

showing 10 items of 2280 documents

Vitamin D increases the production of IL-10 by regulatory T cells in patients with systemic sclerosis

2019

OBJECTIVES: Vitamin D status influences the risk to develop autoimmune diseases affecting the percentage and/or functions of regulatory T cells (Tregs). Since low levels of 25 (OH) D have been decreased in patients with systemic sclerosis (SSc), we aimed to study the effect of Vitamin D3 (cholecalciferol) supplementation on Tregs frequencies and functions. METHODS: Peripheral blood and sera samples were obtained from 45 SSc patients and controls (HC). A number of eighteen SSc patients had consumed Cholecalciferol (orally) at the dose of 25.000 UI/month for 6 months at the time of enrollment. 25(OH)D serum levels were measured and VDR polymorphisms, were genotyped by polymerase chain reactio…

MaleScleroderma SystemicMiddle AgedT-Lymphocytes RegulatoryInterleukin-10Case-Control StudiesDietary SupplementsLeukocytes MononuclearHumansFemaleVitamin Dsystemic sclerosis vitamin D TregsCase-Control StudieDietary SupplementHuman
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Assessment of humoral and cell-mediated immunity against Bordetella pertussis in adolescent, adult, and senior subjects in Italy

2008

SUMMARYHumoral and cell-mediated immunity (CMI) againstB. pertussiswas assessed in a sample of adolescent, adult and senior subjects distributed in five different geographical areas in Italy. Most (99·1%) subjects had IgG anti-pertussis toxin (PT) antibodies exceeding the minimum detection level [⩾2 ELISA units (EU)/ml]. There were no significant differences between the genders; 6·2% samples recorded titres ⩾100 EU/ml. CMI was positive [stimulation index (SI) ⩾5] against PT in 39·0% of all samples. This study suggests thatB. pertussiscontinues to circulate in age groups that have been previously considered to be uninvolved in the circulation of this pathogen and that adolescent and adult pe…

MaleSettore MED/07 - Microbiologia E Microbiologia ClinicaCellular immunityBordetella pertussisEpidemiologyWhooping CoughBordetella pertussisSeroepidemiologic StudiesEpidemiology80 and overLymphocytesAged 80 and overeducation.field_of_studybiologyadultBacterialMiddle AgedOriginal PapersAntibodies BacterialseniorInfectious DiseasesB. pertussis Humoral and cell-mediated immunity ELISAItalyFemaleAntibodyAdultmedicine.medical_specialtyBordetella pertussiAdolescent; Adult; Aged; Aged 80 and over; Antibodies Bacterial; Antitoxins; Bordetella pertussis; Enzyme-Linked Immunosorbent Assay; Female; Humans; Immunoglobulin G; Italy; Lymphocytes; Male; Middle Aged; Seroepidemiologic Studies; Whooping Cough; Epidemiology; Infectious DiseasesAdolescentPopulationEnzyme-Linked Immunosorbent AssayAntibodiesNOImmunitymedicineHumanseducationimmunità cellulo mediataAgedbusiness.industrybiology.organism_classificationadolescentImmunoglobulin GHumoral immunityImmunologyEtiologybiology.proteinimmunità umoraleAntitoxinsbusiness
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White blood cell counts as risk markers of developing metabolic syndrome and its components in the Predimed study.

2013

Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; TRIAL REGISTRATION Controlled-Trials.comISRCTN35739639. BACKGROUND The Metabolic Syndrome (MetS) is a cluster of metabolic abnormalities that includes hyperglucemia, hypertension, dyslipidemia and central obesity, conferring an increased risk of cardiovascular disease. The white blood cell (WBC) count has been proposed as a marker for predicting cardiovascular risk. However, few prospective studies have evaluated the relationship between WBC subtypes and risk of MetS. METHODS Participants were recruited from seven PREDIMED study centers. Both a baseline cross-sectional (n = 4,377) and a prospe…

MaleSíndrome metabòlicaMediterranean dietNeutrophilsEpidemiologyEstudios transversalesMetabolic disorders:Named Groups::Persons::Age Groups::Adult::Aged::Aged 80 and over [Medical Subject Headings]Disease:Named Groups::Persons::Age Groups::Adult::Middle Aged [Medical Subject Headings]Diet Mediterranean:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Probability::Risk::Risk Factors [Medical Subject Headings]:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]Leukocyte CountLymphocitesRisk FactorsBlood plasmaPathologyMedicineProspective StudiesProspective cohort studyAged 80 and overMetabolic SyndromeClinical ChemistryMultidisciplinary:Analytical Diagnostic and Therapeutic Techniques and Equipment::Therapeutics::Nutrition Therapy::Diet Therapy::Diet Mediterranean [Medical Subject Headings]QRMiddle AgedMetabolic syndromeClinical Laboratory Sciences1932-6203:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cross-Sectional Studies [Medical Subject Headings]medicine.anatomical_structureCholesterolCardiovascular diseasesCardiovascular DiseasesMedicineWhite blood cellsFemalePublic HealthEnfermedades cardiovascularesResearch Articlemedicine.medical_specialty:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cohort Studies::Longitudinal Studies::Prospective Studies [Medical Subject Headings]Recuento de linfocitosScience:Check Tags::Male [Medical Subject Headings]Mediterranean cookingDiagnostic MedicineInternal medicineWhite blood cell:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Clinical Laboratory Techniques::Cytological Techniques::Cell Count::Blood Cell Count::Leukocyte Count::Lymphocyte Count [Medical Subject Headings]Cuina mediterràniaHumansLymphocyte CountObesity:Named Groups::Persons::Age Groups::Adult::Aged [Medical Subject Headings]:Diseases::Cardiovascular Diseases [Medical Subject Headings]Cardiovascular Disease EpidemiologyAged:Diseases::Nutritional and Metabolic Diseases::Metabolic Diseases::Metabolic Syndrome X [Medical Subject Headings]business.industryMalalties cardiovascularsRecuento de leucocitosSíndrome X metabólicomedicine.diseaseObesityLong-Term CareDieta mediterránea:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Clinical Laboratory Techniques::Cytological Techniques::Cell Count::Blood Cell Count::Leukocyte Count [Medical Subject Headings]Biomarker EpidemiologyCross-Sectional Studies:Check Tags::Female [Medical Subject Headings]GeriatricsImmunologyClinical ImmunologyPreventive MedicineMetabolic syndrome:Anatomy::Cells::Blood Cells::Leukocytes::Granulocytes::Neutrophils [Medical Subject Headings]businessDyslipidemiaBiomarkersGeneral Pathology
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The T-box transcription factor eomesodermin controls CD8 T cell activity and lymph node metastasis in human colorectal cancer.

2007

An efficient cytolytic T cell function is essential for immune mediated rejection of colorectal cancer. However, the molecular mechanisms driving T cell mediated cancer rejection are still poorly understood. Here, we assessed the relevance of the T-box transcription factor eomesodermin in colorectal cancer. METHODS/ RESULTS: By analysing tissue probes from 88 different colorectal tumours, a significant (p0.02) inverse correlation between eomesodermin expression in colorectal cancers and the presence of lymph node metastases could be shown, whereas no such correlation was noted for the master transcription factor of regulatory T cells, FoxP3 and CD8 alpha expression. To evaluate whether this…

MaleT cellEomesoderminEnzyme-Linked Immunosorbent AssayCD8-Positive T-LymphocytesTransforming Growth Factor betamedicineCytotoxic T cellHumansTranscription factorColorectal Cancerbiologybusiness.industryReverse Transcriptase Polymerase Chain ReactionGastroenterologyCancerT lymphocytemedicine.diseasemedicine.anatomical_structurePerforinLymphatic MetastasisImmunologybiology.proteinFemaleInterleukin-4businessColorectal NeoplasmsT-Box Domain ProteinsCD8Gut
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gd T cells condition dendritic cells in vivo for priming pulmonary CD8 T cell responses against Mycobacterium tuberculosis

2006

gammadelta T cells and dendritic cells are quickly recruited to the lungs shortly after intranasal vaccination with BCG, but the functional in vivo interplay between these two cell populations and its role in the induction of adaptive immune responses is unclear. Using TCR-deficient mice and bone marrow chimeras, we show here that gammadelta T cells provide a non-redundant early source of IFN-gamma in vivo, which enhances IL-12 production by lung dendritic cells. The in vivo-conditioned dendritic cells, in turn, prime a more efficient lung CD8 T cell response against Mycobacterium tuberculosis. Thus, strategies exploiting gammadelta T cell function and IFN-gamma production could be valuable…

MaleT cellImmunologyBiologyCD8-Positive T-LymphocytesLymphocyte ActivationInterleukin 21Interferon-gammaMiceT-Lymphocyte SubsetsmedicineImmunology and AllergyCytotoxic T cellAnimalsTuberculosisIL-2 receptorAntigen-presenting cellLungFollicular dendritic cellsReceptors Antigen T-Cell gamma-deltaDendritic CellsMycobacterium tuberculosisNatural killer T cellFlow CytometryInterleukin-12Mice Mutant StrainsMice Inbred C57BLmedicine.anatomical_structureImmunologyInterleukin 12Female
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RNA recognition by human TLR8 can lead to autoimmune inflammation

2013

High expression level of human TLR8 in mice results in spontaneous, multiorgan inflammation attributable in part to increased DC activation.

MaleT cellT-LymphocytesImmunologyArthritisInflammationMice TransgenicAutoimmunityTRL8AUTOIMMUNE INFLAMMATIONBiologymedicine.disease_causeArticleAutoimmunityProinflammatory cytokineMiceTRL8; AUTOIMMUNE INFLAMMATIONhemic and lymphatic diseasesmedicineImmunology and AllergyAnimalsHumansTransgenesChildRandomized Controlled Trials as TopicInflammationGene Expression ProfilingTLR7TLR8medicine.diseaseArthritis Experimentaldigestive system diseasesArthritis JuvenileMice Inbred C57BLmedicine.anatomical_structureToll-Like Receptor 7Toll-Like Receptor 8ImmunologyRNAFemaleCollagenSignal transductionmedicine.symptomSignal TransductionThe Journal of Experimental Medicine
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Epitope specificity and Ia restriction of T cell responses to insulin in a system of complementing Ir genes: analysis with primed lymph node T cells …

1983

The antibody response of (H-2b X H-2k)F1 mice to pig insulin (PI) has previously been shown to be under the control of H-2-linked, complementing Ir genes. In addition, this response was reported to depend on the genetic background of the parental strains (Keck, K., Eur. J. Immunol. 1977. 7: 811). Here it is demonstrated that the secondary in vitro response of proliferating T cells shows the same dependence on H-2-linked Ir genes yet an influence of the background genes could not be detected. The complementing genes were mapped to the Kb, I-Ab and Kk, I-Ak regions. For restimulation of F1 T cells by PI, the Ir genes of both parental chromosomes have to be expressed in the same antigen-presen…

MaleT cellT-LymphocytesImmunologyCellGenes MHC Class IIMice Inbred StrainsBiologyLymphocyte ActivationEpitopeCell LineEpitopesMicemedicineImmunology and AllergyAnimalsInsulinGeneGeneticsGenetic Complementation TestHistocompatibility Antigens Class IIT lymphocyteMolecular biologyIn vitroComplementationmedicine.anatomical_structureCell cultureFemaleImmunizationEuropean journal of immunology
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CD8 T cell-evasive functions of human cytomegalovirus display pervasive MHC allele specificity, complementarity, and cooperativity.

2014

Abstract Immunoevasive proteins (“evasins”) of human CMV (HCMV) modulate stability and localization of MHC class I (MHC I) molecules, and their supply of antigenic peptides. However, it is largely unknown to what extent these evasins interfere with recognition by virus-specific CD8 T cells. We analyzed the recognition of HCMV-infected cells by a panel of CD8 T cells restricted through one of nine different MHC I allotypes. We employed a set of HCMV mutants deleted for three or all four of the MHC I modulatory genes US2, US3, US6, and US11. We found that different HCMV evasins exhibited different allotype-specific patterns of interference with CD8 T cell recognition of infected cells. In con…

MaleT cellvirusesImmunologyCD1CytomegalovirusCD8-Positive T-LymphocytesMajor histocompatibility complexCell LineAntigenMHC class ImedicineImmunology and AllergyCytotoxic T cellHumansAntigens ViralAllelesImmune EvasionGeneticsAntigen PresentationbiologyHistocompatibility Antigens Class IMHC restrictionCell biologymedicine.anatomical_structureCytomegalovirus Infectionsbiology.proteinFemaleCD8Journal of immunology (Baltimore, Md. : 1950)
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Autoimmune hepatitis

1996

Autoimmune hepatitis (AIH) is a distinct form of acute and chronic inflammatory liver disease in which immune reactions against host antigens are found to be the major pathological mechanism. If left untreated it carries an unfavourable prognosis, and the diagnosis should be made as soon as possible. The diagnostic approach has been greatly facilitated by the establishment of a panel of marker autoantibodies, which do not define distinct therapeutic groups of AIH, but do allow a subgrouping based on differences in patient populations, some clinical features and prognosis. The characterization of organ-specific components of the liver cell surface as targets of cellular and humoral autoimmun…

MaleT-LymphocytesAutoimmune hepatitisDiseaseHepatitis Animalmedicine.disease_causeAutoimmune DiseasesHepatitisPathology and Forensic MedicineAutoimmunityMiceLiver diseasemedicineAnimalsHumansMolecular BiologyHepatitisAutoimmune diseasebusiness.industryLiver cellAutoantibodyCell BiologyGeneral Medicinemedicine.diseaseDisease Models AnimalLiverImmunologyFemalebusinessVirchows Archiv
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Molecular, genetic, and functional analysis of homozygous C8 beta-chain deficiency in two siblings.

1998

Abstract C8 deficiency is associated with an increased susceptibility to neisserial infections. We present a case of an 11 year old boy who suffered from infection with Neisseria meningitidis . Medical history of the patient and his family ( n = 5) did not indicate any previous immunodeficiency symptoms. Results from the analysis of phagocyte and lymphocyte functions were within the normal range. No hemolytic activities of the classical (CH50) and the alternative (APH50) pathways of complement were measurable, and SC5b-9 protein complexes could not be detected in the patient's plasma. Further analysis by highly sensitive ELISA and functional assays revealed a complete deficiency of C8. Upon…

MaleT-LymphocytesComplement Membrane Attack ComplexBiologyMeningitis Meningococcalmedicine.disease_causeAsymptomaticGenetic analysisComplement Hemolytic Activity AssayExonmedicineHumansMedical historyChildGeneImmunodeficiencyAllelesPharmacologyGeneticsBosnia and HerzegovinaMutationPhagocytesNeisseria meningitidisHomozygoteDNAExonsmedicine.diseaseComplement C8ImmunologyFemalemedicine.symptomImmunopharmacology
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