Project description:Non-Hodgkin lymphomas (NHL) make up the majority of lymphoma diagnoses and represent a very diverse set of malignancies. We sought to identify kinases uniquely upregulated in different NHL subtypes. Using Multiplexed Inhibitor Bead-mass spectrometry (MIB/MS), we found Tyro3 was uniquely upregulated and important for cell survival in primary effusion lymphoma (PEL), which is a viral lymphoma infected with Kaposi’s sarcoma-associated herpesvirus (KSHV).
Project description:In our genome-wide association study, we searched for an association of genetic variants with colorectal cancer, type 1 diabetes, Hodgkin lymphoma and Diffuse large B-cell lymphoma among Polish population.
Project description:The pathogenesis of nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL) and its relationship to other lymphomas are largely unknown. This is partly due to the technical challenge of analyzing its rare neoplastic L&H cells, which are dispersed in an abundant non-neoplastic cellular microenvironment. We performed a genome-wide expression study of microdissected lymphocytic and histiocytic (L&H) lymphoma cells in comparison to normal and other malignant B cells, which indicates a relationship of L&H cells to and/or origin from germinal center B cells at transition to memory B cells. L&H cells show a surprisingly high similarity to the tumor cells of T cell-rich B cell lymphoma and classical Hodgkin lymphoma, a partial loss of their B cell phenotype and deregulation of many apoptosis-regulators and putative oncogenes. Importantly, L&H cells are characterized by constitutive NF-κB activity and aberrant ERK signaling. Thus, these findings shed new light on the nature of L&H cells, revealed several novel pathogenetic mechanisms in NLPHL, and may help in differential diagnosis and lead to novel therapeutic strategies. Experiment Overall Design: Analysis of differential gene expression in primary human lymphoma cells of nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL) in comparison with primary lymphoma cells of classical Hodgkin lymphoma cells and other B-non-Hodgkin lymphoma (B-NHL) samples and subsets of non-neoplastic B lymphocytes isolated from blood or tonsils. 67 gene expression profiles were analysed.
Project description:<p>Within the framework of the International Lymphoma Epidemiology Consortium (InterLymph) Consortium and NCI-sponsored Cohort Consortium, investigators from 22 studies came together to conduct a genome-wide association study (GWAS) of non-Hodgkin lymphoma (NHL). The goal of the study was to identify common genetic variants associated with the risk of NHL. As described previously (Berndt SI et al., Nature Genetics, 2013, PMID: <a href="http://www.ncbi.nlm.nih.gov/pubmed/?term=23770605">23770605</a> ), cases and controls from 22 studies, including nine prospective cohort studies, eight population-based case-control studies, and five clinic or hospital-based case-control studies were included in this effort. Cases of NHL were ascertained from cancer registries, clinics or hospitals, or through self-report verified by medical and pathology reports. The phenotype information for all NHL cases was reviewed centrally at the InterLymph Data Coordinating Center and harmonized according to the hierarchical classification proposed by the InterLymph Pathology Working Group based on the World Health Organization (WHO) classification (2008). Controls were frequency matched to cases on age and gender by study, and the study was limited to subjects of European ancestry. Participants were genotyped using the Illumina Omni Express.</p> <p><b>The NCI Non-Hodgkin Lymphoma GWAS is utilized in the following dbGaP sub-studies.</b> To view genotypes and derived variables collected in these sub-studies, please click on the following sub-studies below or in the "Sub-studies" box located on the right hand side of this top-level study page <a href="study.cgi?study_id=phs000801">phs000801</a> NCI Non-Hodgkin Lymphoma GWAS. <ul> <li><a href="study.cgi?study_id=phs000802">phs000802</a> NCI Non-Hodgkin Lymphoma GWAS: CLL</li> <li><a href="study.cgi?study_id=phs000818">phs000818</a> NCI Non-Hodgkin Lymphoma GWAS: Controls</li> <li><a href="study.cgi?study_id=phs000889">phs000889</a> NCI Non-Hodgkin Lymphoma GWAS: DLBCL</li> <li><a href="study.cgi?study_id=phs000890">phs000890</a> NCI Non-Hodgkin Lymphoma GWAS: FL</li> <li><a href="study.cgi?study_id=phs000891">phs000891</a> NCI Non-Hodgkin Lymphoma GWAS: MZL</li> </ul> </p>
Project description:Primary Mediastinal large B-cell lymphoma (PMBL) is a rare form of non-Hodgkin lymphoma (NHL) representing 2% of mature B-cell NHL in patients less than 18 years of age.We compared the gene expression profiling between fully humanized anti-CD20 targeted monoclonal antibody recognizing a unique CD20 type II epitope, obinutuzumab and IgG or PBS treated Karpas Primary Mediastinal B-cell lymphoma (PMBL) cell line. -
Project description:The redirection of T-cells has emerged as an attractive therapeutic principle in B-cell non-Hodgkin lymphoma (B-NHL). However, a detailed characterization of lymphoma-infiltrating T-cells across B-NHL entities is missing. Here, we present cellular indexing of transcriptomes and epitopes of lymph-node derived T-cells from patients with diffuse large B-cell, mantle cell, follicular, or marginal zone lymphoma, and from healthy controls. These data revealed quantitative aberrations of the T-cell microenvironment across and within B-NHL entities.
Project description:The redirection of T-cells has emerged as an attractive therapeutic principle in B-cell non-Hodgkin lymphoma (B-NHL). However, a detailed characterization of lymphoma-infiltrating T-cells across B-NHL entities is missing. Here, we present single-cell transcriptome and T-cell receptor sequencing of lymph-node derived T-cells from patients with diffuse large B-cell, mantle cell, follicular, or marginal zone lymphoma, and from healthy controls. These data revealed quantitative aberrations of the T-cell microenvironment across and within B-NHL entities.