Paired data of primary and relapse central nervous system lymphoma and testicular lymphoma
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ABSTRACT:
PROVIDER: EGAS00001005833 | EGA |
REPOSITORIES: EGA
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Project description:Primary central nervous system (CNS) lymphoma (PCNSL) is a diffuse large B cell lymphoma (DLBCL) confined to the CNS. A genome-wide gene expression comparison between PCNSL and non-CNS DLBCL was performed, the latter consisting of both nodal and extranodal DLBCL (nDLBCL and enDLBCL), to identify a “CNS signature.” Keywords: disease state analysis
2008-05-10 | GSE11392 | GEO
Project description:Primary diffuse large B-cell lymphoma (DLBCL) of the central nervous system (PCNSL) is a rare, extranodal lymphoma. Primary vitreo-retinal lymphoma (PVRL) occurs in 15-25% of PCNSL. CNS involvement also occurs in systemic diffuse large B-cell lymphoma, termed secondary central nervous system lymphoma (SCNSL). Despite intensive treatment, patient outcomes are poor when compared to DLBCL without CNS involvement. How and why lymphoma cells home to the CNS and vitreo-retinal compartment remains unknown. In vivo models to study lymphoma cell tropism are urgently needed. We therefore established and characterized 3 primary and 4 secondary patient-derived CNS lymphoma xenograft mouse models using immunohistochemistry, flow cytometry and nucleic acid sequencing technology. In spleen reimplantation experiments, we characterized the dissemination pattern of orthotopic and heterotopic xenografts and performed RNA sequencing to detect differences on the transcriptome level. Moreover, we found that lymphoma cells in PCNSL xenografts home to the eye after intrasplenal implantation in around 60% of cases, similar to PVRL. This in vivo tumor model preserves key features of this rare lymphoma entity and can be used to explore pathways that are critical for CNS and retinal tropism with the goal to find potential new targets for novel therapeutic approaches .
2023-10-11 | GSE189822 | GEO
Project description:Primary diffuse large B-cell lymphoma (DLBCL) of the central nervous system (PCNSL) is a rare, extranodal lymphoma. Primary vitreo-retinal lymphoma (PVRL) occurs in 15-25% of PCNSL. CNS involvement also occurs in systemic diffuse large B-cell lymphoma, termed secondary central nervous system lymphoma (SCNSL). Despite intensive treatment, patient outcomes are poor when compared to DLBCL without CNS involvement. How and why lymphoma cells home to the CNS and vitreo-retinal compartment remains unknown. In vivo models to study lymphoma cell tropism are urgently needed. We therefore established and characterized 2 primary and 2 secondary patient-derived CNS lymphoma xenograft mouse models using immunohistochemistry, flow cytometry and nucleic acid sequencing technology. In spleen reimplantation experiments, we characterized the dissemination pattern of orthotopic and heterotopic xenografts and performed RNA sequencing to detect differences on the transcriptome level. Moreover, we found that lymphoma cells in PCNSL xenografts home to the eye after intrasplenal implantation in around 60% of cases, similar to PVRL. This in vivo tumor model preserves key features of this rare lymphoma entity and can be used to explore pathways that are critical for CNS and retinal tropism with the goal to find potential new targets for novel therapeutic approaches .
2023-10-11 | GSE218284 | GEO
Project description:Genomic aberrations in primary central nervous system lymphoma (PCNSL).
2010-11-13 | GSE25298 | GEO
Project description:Genomic aberrations in primary central nervous system lymphoma (PCNSL). Two-condition experiment, PCNSLs vs. healthy men. Biological replicates: 12 tumors replicates, 13 peripheral blood replicates.
2010-11-13 | E-GEOD-25298 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the following subset Series: GSE25297: Genome-wide gene expression comparison (primary central nervous system lymphoma (PCNSL) vs normal lymph node) GSE25298: Genomic aberrations in primary central nervous system lymphoma (PCNSL) Refer to individual Series
2010-11-13 | E-GEOD-25299 | biostudies-arrayexpress
Project description:Human testicular cells were isolated mechanically and enzymatically from testis of braindead donors and from urological samples. The expression of genes was studied at baseline and 1,25(OH)2D treated conditions. We used microarrays to analyze the gene expression underlying vitamin D metabolism in human testis cells and identified distinct classes of up-regulated genes during this process. Testicular primary cells were treated with 100nM 1,25(OH)2D for 24h and gene expression studied by microarray on transcript level.
2014-03-14 | E-GEOD-55207 | biostudies-arrayexpress
Project description:We have isolated highly pure testicular extracellular vesicles using a newly established testis dissociation method. We then used shotgun proteomic approach to examine the proteins carried by and expressed on the testicular extracellular vesicles.
2022-02-17 | PXD021766 | Pride
Project description:ITo derive a scaffold from human testis for the purpose of tissue engineering and regenerative medicine, we developed a method to produce a cytocompatible decellularized testicular matrix (DTM) while maintaining the native tissue-specific characteristics and components. The potential benefits of tissue-specific scaffolds consisting of naturally-derived extracellular matrix (ECM) have been demonstrated using a wide variety of animal and human tissue sources. However, so far, testis scaffolds have never been considered for constructive remodelling purposes. We have therefore developed a protocol for the preparation of cell-free extracellular matrix and characterized the material extensively using a combination of proteomics, immunohistochemsitry, and cell population assays. To prepare cell-free matrix, human cadaveric testicular tissue was exposed for 24 h or 48 h to 1% Triton X-100 and/or 1% sodium dodecyl sulfate (SDS). The extent of decellularization was evaluated by histology. Confirmation of cell removal in DTM was done by a DNA quantification technique. The protein composition was analysed by LC-MS/MS. The retention of testicular tissue-specific characteristics was evaluated by immunohistochemistry, Alcian blue staining and scanning electron microscopy. Soluble toxicity and testicular cell attachment was assessed to check the cytocompatibility of DTM scaffolds. Histological analysis showed that DTM could be obtained by mechanical agitation in 1% SDS for 24 h. The resulting DTM was found to be clear of cells while retaining the typical three-dimensional structure. Proteomics analysis revelaed the presence of the major components of the native tissue scaffold, including collagen type I and IV, fibronectin, laminin and glycosaminoglycans. In addition, numerous additional ECM proteins in DTM were detected, indicating its complex nature. Importantly, we demonstrated that DTM scaffolds are not cytotoxic, as evidenced by MTT assay showing a normal fibroblast proliferation activity after indirect exposure, and support testicular cell attachment and infiltration.
2016-03-14 | MSV000079582 | MassIVE
Project description:Primary central nervous system lymphoma(PCNSL) is a rare extra-nodal non-Hodgkin’s lymphoma and accounts for 3%-4% of central nervous system tumors. Recent studies have highlighted the importance of cerebrospinal fluid derived extracellular vesicles in PCNSL. Extracellular vesicles(EVs) are nanoscale vesicles with bilayer lipid membrane released by almost all cell types. EVs are present in body fluids, including urine, blood and CSF. Cerebrospinal fluid(CSF) is a colorless fluid that surrounds the brain and spinal cord and acts as lymph in the central nervous system. CSF-derived EVs contain proteins from neurons, oligodendrocytes, astrocytes and microglias. Studies of CSF EVs are mainly limited by the amount of EVs isolated from per milliliter of CSF and the volume of CSF acquired from one patient. Here, we provide a label-free quantitative phospho-proteome profiling of EVs separated from PCNSL and non-PCNSL CSF samples by an earlier introduced functional magnetic beads called EVTRAP together with highly sensitive timsTOF Pro.
2023-07-12 | PXD040744 | JPOST Repository