Human Gene Set: CHIARETTI_T_ALL_RELAPSE_PROGNOSIS


Standard name CHIARETTI_T_ALL_RELAPSE_PROGNOSIS
Systematic name M17204
Brief description Genes whose expression predicted relapse in less than 2 years after chemotherapy for adult patients with T-ALL (T cell lymphoblastic leukemia).
Full description or abstract Gene expression profiles were examined in 33 adult patients with T-cell acute lymphocytic leukemia (T-ALL). Nonspecific filtering criteria identified 313 genes differentially expressed in the leukemic cells. Hierarchical clustering of samples identified 2 groups that reflected the degree of T-cell differentiation but was not associated with clinical outcome. Comparison between refractory patients and those who responded to induction chemotherapy identified a single gene, interleukin 8 (IL-8), that was highly expressed in refractory T-ALL cells and a set of 30 genes that was highly expressed in leukemic cells from patients who achieved complete remission. We next identified 19 genes that were differentially expressed in T-ALL cells from patients who either had a relapse or remained in continuous complete remission. A model based on the expression of 3 of these genes was predictive of duration of remission. The 3-gene model was validated on a further set of T-ALL samples from 18 additional patients treated on the same clinical protocol. This study demonstrates that gene expression profiling can identify a limited number of genes that are predictive of response to induction therapy and remission duration in adult patients with T-ALL.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 14684422   Authors: Chiaretti S,Li X,Gentleman R,Vitale A,Vignetti M,Mandelli F,Ritz J,Foa R
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Source species Homo sapiens
Contributed by Arthur Liberzon (MSigDB Team)
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identifier namespace		 HUMAN_GENE_SYMBOL
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Version history 3.0: First introduced

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