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Digital Spatial Profiling of CD4+ cells in classic Hodgkin lymphoma.

ABSTRACT: Digital Spatial Profiling of CD4+ cells in classic Hodgkin lymphoma.

PROVIDER: PRJNA942913 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR23760700_1.fastq.gz	Fastqsanger.gz
	SRR23760700_2.fastq.gz	Fastqsanger.gz
	SRR23760701_1.fastq.gz	Fastqsanger.gz
	SRR23760701_2.fastq.gz	Fastqsanger.gz
	SRR23760702_1.fastq.gz	Fastqsanger.gz

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Digital Spatial Profiling of CD4+ cells in classic Hodgkin lymphoma.

Project description:Classic Hodgkin lymphoma (CHL) harbors a small number of Hodgkin-Reed-Sternberg (HRS) cells scattered among numerous lymphocytes. HRS cells are surrounded by distinct CD4+ T cells in a rosette-like manner. These CD4+ T cell rosettes play an important role in the tumor microenvironment (TME) of CHL. To elucidate the interaction between HRS cells and CD4+ T cell rosettes, we completed digital spatial profiling to compare the gene expression profiles of CD4+ T cell rosettes and other CD4+ T cells separated from the HRS cells. Tumor necrosis factor receptor superfamily member (TNFRSF) 4 or OX40 showed significantly higher expression in CD4+ T cell rosettes when compared with other CD4+ T cells. Programed cell death-1 (PD-1) and cytotoxic T lymphocyte associated protein 4 (CTLA-4) tended to be highly expressed in CD4+ T cell rosettes compared to other CD4+ T cells. Immunohistochemistry revealed variable expression of these immune checkpoint molecules in the CD4+ T cell rosettes. This study introduced a new pathological approach to the TME and provided deeper insight into CD4+ T cells in CHL.

2023-07-03 | GSE227013 | GEO

Digital Spatial Profiling of tumor microenvironment of classic Hodgkin lymphoma.

Project description:Digital Spatial Profiling of tumor microenvironment of classic Hodgkin lymphoma.

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Digital Spatial Profiling of tumor microenvironment of classic Hodgkin lymphoma.

Project description:Classic Hodgkin lymphoma (CHL) harbors a small number of Hodgkin-Reed-Sternberg (HRS) cells scattering among numerous lymphocytes. HRS cells are surrounded by distinct CD4+ T cells in a rosette-like manner. These CD4+ T cell rosettes play an important role in tumor microenvironment (TME) of CHL. To elucidate the interaction between HRS cells and CD4+ T cell rosettes, we performed digital spatial profiling (DSP) and compared gene expression profile between CD4+ T cell rosettes and other CD4+ cells separated from HRS cells. programed cell death-1 (PD-1) and tumor necrosis factor receptor superfamily member (TNFRSF) 4 were significantly highly expressed in CD4+ T cell rosettes than others. Immunohistochemistry confirmed PD-1 and TNFRSF4-expressing CD4+ T cell rosettes. This study introduced the new pathological approach to TME and provided deeper insight to CD4+ T cells in CHL.

2023-07-03 | GSE218703 | GEO

Digital Spatial Profiling reveals tumor microenvironment of Hodgkin-like adult T-cell leukemia/lymphoma.

Project description:Hodgkin-like adult T-cell leukemia/lymphoma (ATLL) is a rare subtype of ATLL harboring human T cell lymphotropic virus type-1-infected Hodgkin-Reed-Sternberg (HRS)-like cells and small to medium CD4+ T cells, which histologically mimics classic Hodgkin lymphoma (CHL). CD30+ tumor cells or HRS cells are surrounded by CD4+ non-neoplastic T cells in a rosette-like manner in CHL. Interaction between HRS cells and surrounding CD4+ T cells is important for tumor microenvironment (TME) in CHL. Tumor microenvironment of Hodgkin-like ATLL remains unclear. Here, Digital Spatial Profiling was performed on Hodgkin-like ATLL to elucidate the interaction between HRS-like cells and CD4+ T cells in Hodgkin-like ATLL. We identified CD4+ T cells expressing co-stimulatory molecules, CD28 and inducible T cell co-stimulator (ICOS), in CD4+ T cells surrounding the HRS-like cells than in those apart from HRS-like cells. Immunohistochemistry was performed in 11 cases of Hodgkin-like ATLL, which detected distinct CD4+ T cells expressing CD28 in a rosette-like manner around HRS-like cells. HRS-like cells widely expressed CD80 and CD86, which suggested CD28-CD80/CD86 interaction was important in pathogenesis of Hodgkin-like ATLL. ICOS and immune checkpoint molecules, including T cell immunoreceptor with immunoglobulin and ITIM domain (TIGIT) and programmed death-1 (PD-1) were also variably expressed in CD4+ T cells surrounding HRS-like cells. Our findings provide new insights into the tumor microenvironment of Hodgkin-like ATLL and implicate a new therapeutic strategy targeting these molecules.

2023-12-06 | GSE213461 | GEO

Digital Spatial Profiling reveals tumor microenvironment of Hodgkin-like adult T-cell leukemia/lymphoma.

Project description:Digital Spatial Profiling reveals tumor microenvironment of Hodgkin-like adult T-cell leukemia/lymphoma.

| PRJNA880885 | ENA

Circulating tumor DNA for monitoring classic Hodgkin lymphoma patients: correlation with FDG-PET/CT

Project description:Circulating tumor DNA (ctDNA) as a biomarker of disease activity in classic Hodgkin lymphoma (cHL) patients are still not well-defined. By profiling primary tumors and ctDNA, we identified common variants between primary tumors and longitudinal plasma samples in most of the cases, confirming high PBatial and temporal heterogeneity. Though ctDNA analyses mirrored HRS cell genetics overall, the prevalence of variants shows that none of them can be used as a single biomarker. Conversely, the estimation of hGE/mL, based in total ctDNA quantification, reflects disease activity and is almost perfectly correlated with standard parameters such as PET/CT that are associated with refractoriness.

2023-12-18 | GSE244989 | GEO

Identification of two unannotated miRNAs in classic Hodgkin lymphoma cell lines

Project description:The discovery of two novel miRNAs followed by experimental validation in classic Hodgkin lymphoma cell lines.

| PRJEB80777 | ENA

Spatial tumor microenvironment characterization and outcome of relapsed/refractory classic Hodgkin lymphoma

Project description:About half of relapsed or refractory classic Hodgkin lymphoma (r/r CHL) patients succumb to their disease after high dose chemotherapy followed by autologous stem cell transplantation (HDT/ASCT). Here, we aimed at describing spatially resolved tumor microenvironment (TME) ecosystems to establish novel biomarkers associated with treatment failure in r/r CHL.

| EGAS00001007261 | EGA

Circulating tumor DNA for monitoring classic Hodgkin lymphoma patients: correlation with FDG-PET/CT

Project description:Circulating tumor DNA for monitoring classic Hodgkin lymphoma patients: correlation with FDG-PET/CT

| PRJNA1026583 | ENA

Multiplexed Spatial Profiling of Hodgkin Reed-Sternberg Cell Neighborhoods in Classic Hodgkin Lymphoma.

Project description:PurposeClassic Hodgkin lymphoma (cHL) is a B-cell lymphoma that occurs primarily in young adults and, less frequently, in elderly individuals. A hallmark of cHL is the exceptional scarcity (1%-5%) of the malignant Hodgkin Reed-Sternberg (HRS) cells within a network of nonmalignant immune cells. Molecular determinants governing the relationship between HRS cells and their proximal microenvironment remain largely unknown.Experimental designWe performed spatially resolved multiplexed protein imaging and transcriptomic sequencing to characterize HRS cell states, cellular neighborhoods, and gene expression signatures of 23.6 million cells from 36 newly diagnosed Epstein-Barr virus (EBV)-positive and EBV-negative cHL tumors.ResultsWe show that MHC-I expression on HRS cells is associated with immune-inflamed neighborhoods containing CD8+ T cells, MHC-II+ macrophages, and immune checkpoint expression (i.e., PD1 and VISTA). We identified spatial clustering of HRS cells, consistent with the syncytial variant of cHL, and its association with T-cell-excluded neighborhoods in a subset of EBV-negative tumors. Finally, a subset of both EBV-positive and EBV-negative tumors contained regulatory T-cell-high neighborhoods harboring HRS cells with augmented proliferative capacity.ConclusionsOur study links HRS cell properties with distinct immunophenotypes and potential immune escape mechanisms in cHL.

| S-EPMC11369618 | biostudies-literature

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