These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: IKZF1 (Ikaros) deletions in BCR-ABL1-positive acute lymphoblastic leukemia are associated with short disease-free survival and high rate of cumulative incidence of relapse: a GIMEMA AL WP report.
    Author: Martinelli G, Iacobucci I, Storlazzi CT, Vignetti M, Paoloni F, Cilloni D, Soverini S, Vitale A, Chiaretti S, Cimino G, Papayannidis C, Paolini S, Elia L, Fazi P, Meloni G, Amadori S, Saglio G, Pane F, Baccarani M, Foà R.
    Journal: J Clin Oncol; 2009 Nov 01; 27(31):5202-7. PubMed ID: 19770381.
    Abstract:
    PURPOSE: The causes of the aggressive nature of BCR-ABL1-positive adult acute lymphoblastic leukemia (ALL) are unknown. To identify, at the submicroscopic level, oncogenic lesions that cooperate with BCR-ABL1 to induce ALL, we performed an investigation of genomic copy number alterations using single nucleotide polymorphism array, genomic polymerase chain reaction, and sequencing of candidate genes. PATIENTS AND METHODS: Eighty-three patients with de novo adult Philadelphia chromosome (Ph) -positive ALL were enrolled onto institutional (n = 17) or Gruppo Italiano Malattie Ematologiche Maligne dell'Adulto Working Party delle Leucemia Acute (n = 66) clinical trials. Treatments included tyrosine kinase inhibitor (TKI) alone, conventional chemotherapy, or a combination of TKI and chemotherapy. RESULTS: A 7p12 deletion of IKZF1 (Ikaros) was identified in 52 (63%) of 83 patients. The pattern of deletion varied among different patients, but the two most common deletion types were loss of exons 4 to 7 in 31 (37%) of 83 patients and loss of exons 2 to 7 in 17 (20%) of 83 patients. Disease-free survival (DFS) was shorter in patients with IKZF1 deletion versus patients with IKZF1 wild type (10 v 32 months, respectively; P = .02). Furthermore, a significantly shorter cumulative incidence of relapse was recorded in patients with IKZF1 deletion versus patients with IKZF1 wild type (10.1 v 56.1 months, respectively; P = .001). Multivariate analysis confirmed the negative prognostic impact of IKZF1 deletion on DFS (P = .04). CONCLUSION: We conclude that IKZF1 deletions are likely to be a genomic alteration that significantly affects the prognosis of Ph-positive ALL in adults.
    [Abstract] [Full Text] [Related] [New Search]