0000000000672670

AUTHOR

Federica Petrelli

showing 1 related works from this author

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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