0000000000225652

AUTHOR

Ester Sorrentino

showing 2 related works from this author

Burkitt lymphoma with a granulomatous reaction: an M1/Th1‐polarised microenvironment is associated with controlled growth and spontaneous regression

2021

Aims Burkitt lymphoma (BL) is an aggressive B-cell lymphoma that, in some instances, may show a granulomatous reaction associated with a favourable prognosis and occasional spontaneous regression. In the present study, we aimed to define the tumour microenvironment (TME) in four such cases, two of which regressed spontaneously. Methods and results All cases showed aggregates of tumour cells with the typical morphology, molecular cytogenetics and immunophenotype of BL surrounded by a florid epithelioid granulomatous reaction. All four cases were Epstein-Barr virus (EBV)-positive with type I latency. Investigation of the TME showed similar features in all four cases. The analysis revealed a p…

MaleEpstein-Barr Virus InfectionsHerpesvirus 4 HumanHistologyAdolescentM1 polarised macrophagesTh1 T cellsExpressionBiologyT-Cell ResponsesVirusPathology and Forensic MedicineProinflammatory cytokineMolecular cytogeneticsOriginImmunophenotypingEBVM1 polarised macrophagehemic and lymphatic diseasesTumor MicroenvironmentmedicineHumansM1 polarized macrophagesAgedInhibitionMacrophagesBurkitt lymphomaBurkitt lymphoma; EBV; In Situ lymphoid neoplasia; M1 polarized macrophages; Microenvironment; Th1 T cells; granulomatous reactionB-CellsGeneral MedicineMiddle AgedTh1 Cellsmedicine.diseaseBurkitt LymphomamicroenvironmentRegressionLymphomain-situ lymphoid neoplasiagranulomatous reactionCancer researchFemaleTherapyCellular immunotherapyInfectionEarly phaseBurkitt lymphoma EBV granulomatous reaction in-situ lymphoid neoplasia M1 polarised macrophages microenvironment Th1 T cellsIn Situ lymphoid neoplasiaEpstein-Barr-VirusHistopathology
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Retinoblastoma Is Characterized by a Cold, CD8+ Cell Poor, PD-L1- Microenvironment, Which Turns Into Hot, CD8+ Cell Rich, PD-L1+ After Chemotherapy.

2021

Purpose To investigate the impact of chemotherapy (CHT) on human retinoblastoma (RB) tumor microenvironment (TME). Cases and Methods Ninety-four RBs were studied, including 44 primary RBs treated by upfront surgery (Group 1) and 50 primary RBs enucleated after CHT (CHT), either intra-arterial (IAC; Group 2, 33 cases) or systemic (S-CHT; Group 3, 17 cases). Conventional and multiplexed immunohistochemistry were performed to make quantitative comparisons among the three groups, for the following parameters: tumor-infiltrating inflammatory cells (TI-ICs); programmed cell death protein 1 (PD-1) positive TI-ICs; Ki67 proliferation index; gliosis; PD-1 ligand (PD-L1) protein expression; vessel nu…

0301 basic medicineMaleTime FactorsProliferation indexRetinal NeoplasmsProgrammed Cell Death 1 Receptorretinoblastoma; tumor microenvironment; chemotherapy; PD-1/PD-L1; multiplexed immunohistochemistry; B7-H1 Antigen; CD8-Positive T-Lymphocytes; Child Preschool; Female; Follow-Up Studies; Humans; Immunohistochemistry; Infant; Infant Newborn; Lymphocytes Tumor-Infiltrating; Male; Programmed Cell Death 1 Receptor; Retinal Neoplasms; Retinoblastoma; Retrospective Studies; Time Factors; Tumor MicroenvironmentCD8-Positive T-LymphocyteschemotherapyPD-1/PD-L1B7-H1 AntigenRetina03 medical and health sciencesretinoblastoma; tumor microenvironment chemotherapy PD-1/PD-L1 multiplexed immunohistochemistry0302 clinical medicineLymphocytes Tumor-InfiltratingPD-L1medicineTumor MicroenvironmentHumansLymphocytesTumor-InfiltratingChildPreschoolAnaplasiaRetrospective StudiesTumor microenvironmentbiologyRetinoblastomaChemistryInfant NewbornRetinoblastomaInfantGeneral Medicinemultiplexed immunohistochemistrymedicine.diseaseNewbornChemotherapy regimenImmunohistochemistry030104 developmental biologyGliosis030220 oncology & carcinogenesisChild Preschoolbiology.proteinCancer researchFemalemedicine.symptomCD8Follow-Up StudiesInvestigative ophthalmologyvisual science
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