Systematic name M305
Brief description Differentially expressed genes between high vs low ZAP70 [GeneID=7535] acute lymphoblastic leukemia (ALL) cases with no known molecular aberrations.
Full description or abstract We evaluated the expression of 2 members of the Syk family, ZAP-70 and Syk, in acute lymphoblastic leukemia (ALL) samples, using data derived from a series of 33 T-ALL and 95 B-lineage adult ALL patients analyzed by oligonucleotide arrays. Of the B-lineage ALL cases, 37 were BCR/ABL+, 10 were ALL1/AF4+, 5 were E2A/PBX1+, and 43 carried no known molecular abnormality. ZAP-70 was highly expressed in T-ALL. A high ZAP-70 expression was also found in a proportion of B-lineage ALL, the highest levels being associated with the E2A/PBX1+ group and the lowest with ALL1/AF4+ cases (P < .001). A higher ZAP-70 expression was also observed in the pre-B group (P < .001). Remarkably, Syk expression was always preserved, suggesting that ZAP-70 expression is not substitutive of Syk. At the protein level, ZAP-70 was evaluated on 39 newly diagnosed ALL patients (25 adults, 14 children) and was detected in 23 cases (59%). ZAP-70 expression was consistently found in Ig mu+ cases. Evaluation of long-term outcome in cases without molecular abnormalities showed that the higher levels of ZAP-70 were coupled to a higher relapse rate. In ALL, ZAP-70 expression is associated with the E2A/PBX1 rearrangement and pre-B stage and may have a prognostic role and be a candidate molecule for targeted therapies.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 16160012   Authors: Chiaretti S,Guarini A,De Propris MS,Tavolaro S,Intoppa S,Vitale A,Iacobelli S,Elia L,Ariola C,Ritz J,Fo R
Exact source Table 1
Related gene sets (show 4 gene sets from the same authors)
External links
Filtered by similarity ?
Source species Homo sapiens
Contributed by Kevin Vogelsang (MSigDB Team)
Source platform or
identifier namespace
Dataset references  
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 ? NG-CHM interactive heatmaps
(Please note that clustering takes a few seconds)
GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)

Legacy heatmaps (PNG)
GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)
Advanced query Further investigate these 68 genes
Gene families ? Categorize these 68 genes by gene family
Show members (show 75 source identifiers mapped to 68 genes)
Version history 3.0: Renamed from CHIARETTI_ZAP70_DIFF

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