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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.

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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.

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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.

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Project description:This SuperSeries is composed of the following subset Series: GSE25986: Gene expression profiling of cell lines derived from classical Hodgkin lymphoma GSE25987: Gene expression profiling of Hodgkin lymphoma cell line KMH2: Comparison of CIITA-BX648577 knockdown cultures with non-silencing controls GSE25989: Copy number analysis of Hodgkin lymphoma cell lines KM-H2 and L-428 Refer to individual Series *** This submission represents the microarray gene expression and microarray copy number components of the study

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