0000000000056024

AUTHOR

Stephan Dirnhofer

showing 2 related works from this author

Genome-wide DNA profiling of marginal zone lymphomas identifies subtype-specific lesions with an impact on the clinical outcome

2011

Abstract Marginal zone B-cell lymphomas (MZLs) have been divided into 3 distinct subtypes (extranodal MZLs of mucosa-associated lymphoid tissue [MALT] type, nodal MZLs, and splenic MZLs). Nevertheless, the relationship between the subtypes is still unclear. We performed a comprehensive analysis of genomic DNA copy number changes in a very large series of MZL cases with the aim of addressing this question. Samples from 218 MZL patients (25 nodal, 57 MALT, 134 splenic, and 2 not better specified MZLs) were analyzed with the Affymetrix Human Mapping 250K SNP arrays, and the data combined with matched gene expression in 33 of 218 cases. MALT lymphoma presented significantly more frequently gain…

MalePathologyLymphomaMarginal ZoneBiochemistryExtranodal Diseaseclassification/genetics/pathologyhemic and lymphatic diseases80 and overgeneticsAged 80 and overComparative Genomic HybridizationGenomeMALT lymphomaHematologySingle NucleotideMiddle AgedMarginal zonePrognosisGene Expression Regulation NeoplasticAdult Aged Aged; 80 and over Chromosome Aberrations Comparative Genomic Hybridization DNA Fingerprinting Female Gene Expression Profiling Gene Expression Regulation; Neoplastic Genome; Human Humans Lymphoma; B-Cell; Marginal Zone; classification/genetics/pathology Male Middle Aged Polymorphism; Single Nucleotide; genetics Prognosis Splenic Neoplasms; classification/genetics/pathology Young AdultFemaleHumanAdultmedicine.medical_specialtyGenome-wide DNA profilingImmunologyBiologyPolymorphism Single NucleotideYoung AdultGenome-wide DNA profiling; marginal zone lymphomas; clinical outcome.medicineSNPHumansSplenic marginal zone lymphomaPolymorphismAgedChromosome AberrationsNeoplasticGenome HumanSplenic Marginal Zone Lymphoma; GenomicGene Expression ProfilingSplenic NeoplasmsB-CellLymphoma B-Cell Marginal ZoneCell Biologyclinical outcome.medicine.diseasemarginal zone lymphomaDNA FingerprintingLymphomaGene expression profilingGene Expression RegulationComparative genomic hybridization
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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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