Search results for "k-cell"

showing 3 items of 3 documents

A murine intestinal intraepithelial NKp46-negative innate lymphoid cell population characterized by group 1 properties

2017

The Ly49E receptor is preferentially expressed on murine innate-like lymphocytes, such as epidermal Vγ3 T cells, intestinal intraepithelial CD8αα(+) T lymphocytes, and CD49a(+) liver natural killer (NK) cells. As the latter have recently been shown to be distinct from conventional NK cells and have innate lymphoid cell type 1 (ILC1) properties, we investigated Ly49E expression on intestinal ILC populations. Here, we show that Ly49E expression is very low on known ILC populations, but it can be used to define a previously unrecognized intraepithelial innate lymphoid population. This Ly49E-positive population is negative for NKp46 and CD8αα, expresses CD49a and CD103, and requires T-bet expre…

0301 basic medicineCytotoxicity ImmunologicSUBSETSROR-GAMMA-TLYMPHOCYTESILC1TranscriptomeMice0302 clinical medicineInterferonNKp46-negativeMedicine and Health SciencesAntigens LyInterferon gammaLymphocytesIFN-γlcsh:QH301-705.5education.field_of_studyintestinalIFN-GAMMAInnate lymphoid cellNATURAL-KILLERIntestinesKiller Cells NaturalPhenotypeDIFFERENTIATIONSignal transductionNK Cell Lectin-Like Receptor Subfamily Amedicine.drugSignal TransductionintraepithelialEXPRESSIONPopulationNKP46(+) CELLSBiologyGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciencesInterferon-gammaImmunityAntigens CDmedicineAnimalseducationCell ShapeNatural Cytotoxicity Triggering Receptor 1INHIBITORY RECEPTORSBiology and Life SciencesEpithelial CellsMolecular biologyImmunity InnateNK-CELLS030104 developmental biologyNatural Cytotoxicity Triggering Receptor 1lcsh:Biology (General)ImmunologyTranscriptomeLy49E030215 immunologyTranscription Factors
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K Cell Activity of Normal and Chronic Lymphocytic Leukaemia Lymphocytes: Association with Lymphocytes bearing Receptors for Human C3b

1977

Surface properties of effector cells in antibody-dependent cell mediated cytotoxicity (ADCC) are at present under intensive investigation. Among these cells a lymphocyte population (K cells) has been described with receptors for the Fc portion of IgG (4), receptors for complement (11) and lacking receptors for sheep red blood cells (SRBC) and surface immunoglobulin (13). The purpose of the present study was to investigate more thoroughly the relationship between K cell activity in ADCC and cells bearing receptors for C3b and C3d.

Antibody-dependent cell-mediated cytotoxicityeducation.field_of_studyLymphocytic leukaemiaSurface ImmunoglobulinEffectorChemistryLymphocytePopulationchemical and pharmacologic phenomenak-cellMolecular biologymedicine.anatomical_structuremedicineReceptoreducation
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Immune pathway upregulation and lower genomic instability distinguish EBV-positive nodal T/NK-cell lymphoma from ENKTL and PTCL-NOS

2022

Primary Epstein-Barr virus (EBV)-positive nodal T/NK-cell lymphoma (PTCL-EBV) is a poorly understood disease which shows features resembling extranodal NK/T-cell lymphoma (ENKTL) and is currently not recognized as a distinct entity but categorized as a variant of primary T-cell lymphoma not otherwise specified (PTCL-NOS). Herein, we analyzed copynumber aberrations (n=77) with a focus on global measures of genomic instability and homologous recombination deficiency and performed gene expression (n=84) and EBV miRNA expression (n=24) profiling as well as targeted mutational analysis (n=16) to further characterize PTCL-EBV in relation to ENKTL and PTCL-NOS. Multivariate analysis revealed that …

Lymphoma Extranodal NK-T-CellEpstein-Barr Virus InfectionsHerpesvirus 4 HumanMicroRNAsgenomic instability EBV-positive nodal T/NK-cell lymphoma T cell lymphomahemic and lymphatic diseasesHumansLymphoma T-Cell PeripheralHematologySettore MED/08 - Anatomia PatologicaGenomic InstabilityUp-Regulation
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