0000000000985472

AUTHOR

Laura Emionite

showing 3 related works from this author

Functional Activation of Osteoclast Commitment in Chronic Lymphocytic Leukaemia: A Possible Role for RANK/RANKL Pathway

2017

AbstractSkeletal erosion has been found to represent an independent prognostic indicator in patients with advanced stages of chronic lymphocytic leukaemia (CLL). Whether this phenomenon also occurs in early CLL phases and its underlying mechanisms have yet to be fully elucidated. In this study, we prospectively enrolled 36 consecutive treatment-naïve patients to analyse skeletal structure and bone marrow distribution using a computational approach to PET/CT images. This evaluation was combined with the analysis of RANK/RANKL loop activation in the leukemic clone, given recent reports on its role in CLL progression. Bone erosion was particularly evident in long bone shafts, progressively inc…

Male0301 basic medicineChronic lymphocytic leukaemiaClone (cell biology)Osteoclastslcsh:MedicineMice0302 clinical medicineMice Inbred NODBone MarrowPositron Emission Tomography Computed Tomographyhemic and lymphatic diseases80 and overProspective StudiesChroniclcsh:ScienceAged 80 and overSettore ING-IND/24 - Principi Di Ingegneria ChimicaLeukemiaMultidisciplinaryBone Density Conservation AgentsReceptor Activator of Nuclear Factor-kappa BbiologyMiddle AgedLymphocyticLeukemiamedicine.anatomical_structureDenosumabRANKL030220 oncology & carcinogenesisFemaleDenosumabmedicine.drugAdultStromal cellArticle03 medical and health sciencesOsteoclastmedicineAnimalsHumansAgedRANK/RANKL Pathwaybusiness.industryRANK Ligandlcsh:RB-CellDiagnostic markersRANK LigandAdult; Aged; Aged 80 and over; Animals; Bone Density Conservation Agents; Bone Marrow; Denosumab; Female; Glucose; Humans; Leukemia Lymphocytic Chronic B-Cell; Male; Mice Inbred NOD; Middle Aged; Osteoclasts; Positron Emission Tomography Computed Tomography; Prospective Studies; RANK Ligand; Receptor Activator of Nuclear Factor-kappa B; Xenograft Model Antitumor Assaysmedicine.diseaseLeukemia Lymphocytic Chronic B-CellXenograft Model Antitumor AssaysGlucose030104 developmental biologyChronic Lymphocytic Leukaemiabiology.proteinCancer researchInbred NODlcsh:QBone marrowbusiness
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MiR-146b-5p regulates IL-23 receptor complex expression in chronic lymphocytic leukemia cells

2022

Abstract Chronic lymphocytic leukemia (CLL) cells express the interleukin-23 receptor (IL-23R) chain, but the expression of the complementary IL-12Rβ1 chain requires cell stimulation via surface CD40 molecules (and not via the B-cell receptor [BCR]). This stimulation induces the expression of a heterodimeric functional IL-23R complex and the secretion of IL-23, initiating an autocrine loop that drives leukemic cell expansion. Based on the observation in 224 untreated Binet stage A patients that the cases with the lowest miR-146b-5p concentrations had the shortest time to first treatment (TTFT), we hypothesized that miR-146b-5p could negatively regulate IL-12Rβ1 side chain expression and clo…

MiceMicroRNAsCD40 LigandAnimalsReceptors Antigen B-CellChronic lymphocytic leukemia interleukin-23 receptor (IL-23R) MiR-146bSettore MED/05 - Patologia ClinicaRNA MessengerHematologySettore MED/08 - Anatomia PatologicaInterleukin-23Leukemia Lymphocytic Chronic B-CellBlood Advances
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Microenvironmental regulation of the IL-23R/IL-23 axis overrides chronic lymphocytic leukemia indolence

2018

Although the progression of chronic lymphocytic leukemia (CLL) requires the cooperation of the microenvironment, the exact cellular and molecular mechanisms involved are still unclear. We investigated the interleukin (IL)-23 receptor (IL-23R)/IL-23 axis and found that circulating cells from early-stage CLL patients with shorter time-to-treatment, but not of those with a more benign course, expressed a defective form of the IL-23R complex lacking the IL-12Rβ1 chain. However, cells from both patient groups expressed the complete IL-23R complex in tissue infiltrates and could be induced to express the IL-12Rβ1 chain when cocultured with activated T cells or CD40L+ cells. CLL cells activated in…

0301 basic medicineStromal cellChronic lymphocytic leukemiaBiologyInterleukin-2303 medical and health sciencesParacrine signallingMice0302 clinical medicineRisk Factorshemic and lymphatic diseasesCell Line TumormedicineTumor MicroenvironmentAnimalsHumansAutocrine signallingCell ProliferationNeoplasm StagingTumor microenvironmentCD40Medicine (all)InterleukinGeneral MedicineReceptors Interleukinmedicine.diseaseAntibodies NeutralizingLeukemia Lymphocytic Chronic B-CellUp-RegulationLeukemia030104 developmental biology030220 oncology & carcinogenesisCancer researchbiology.proteinLymph NodesStromal CellsSignal Transduction
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