Gene Set: GUTIERREZ_CHRONIC_LYMPHOCYTIC_LEUKEMIA_DN

Standard name GUTIERREZ_CHRONIC_LYMPHOCYTIC_LEUKEMIA_DN
Systematic name M19492
Brief description Genes exclusively down-regulated in B lymphocytes from CLL (chronic lymphocytic leukemia) patients but with a similiar expression pattern in the normal cells and in the cells from WM (Waldenstroem's macroblobulinemia) patients.
Full description or abstract The tumoral clone of Waldenström's macroglobulinemia (WM) shows a wide morphological heterogeneity, which ranges from B lymphocytes (BL) to plasma cells (PC). By means of genome-wide expression profiling we have been able to identify genes exclusively deregulated in BL and PC from WM, but with a similar expression pattern in their corresponding cell counterparts from chronic lymphocytic leukemia (CLL) and multiple myeloma (MM), as well as normal individuals. The differentially expressed genes have important functions in B-cell differentiation and oncogenesis. Thus, two of the genes downregulated in WM-BL were IL4R, which plays a relevant role in CLL B-cell survival, and BACH2, which participates in the development of class-switched PC. Interestingly, one of the upregulated genes in WM-BL was IL6. A set of four genes was able to discriminate clonal BL from WM and CLL: LEF1 (WNT/beta-catenin pathway), MARCKS, ATXN1 and FMOD. We also found deregulation of genes involved in plasma cell differentiation such as PAX5, which was overexpressed in WM-PC, and IRF4 and BLIMP1, which were underexpressed. In addition, three of the target genes activated by PAX5 - CD79, BLNK and SYK - were upregulated in WM-PC. In summary, these results indicate that both PC and BL from WM are genetically different from the MM and CLL cell counterpart.
Collection C2: curated gene sets
      CGP: chemical and genetic perturbations
Source publication Pubmed 17252022   Authors: Gutiérrez NC,Ocio EM,Rivas Las de J,Maiso P,Delgado M,Fermiñán E,Arcos MJ,Sánchez ML,Hernández JM,Miguel San JF
Exact source Table 1: d-Value < 0
Related gene sets (show 5 additional gene sets from the source publication)

(show 2 gene sets from the same authors)
External links  
Filtered by similarity
Organism Homo sapiens
Contributed by Arthur Liberzon (MSigDB Team)
Source platform AFFY_HG_U133
Dataset references (show 1 datasets)
Download gene set format: grp | gmt | xml | json | TSV metadata
Compute overlaps (show collections to investigate for overlap with this gene set)
Compendia expression profiles GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)
Advanced query Further investigate these 56 genes
Gene families Categorize these 56 genes by gene family
Show members (show 56 members mapped to 56 genes)
Version history 3.0: First introduced

See MSigDB license terms here. Please note that certain gene sets have special access terms.