Document Detail

Use of minimal disseminated disease and immunity to NPM-ALK antigen to stratify ALK-positive ALCL patients with different prognosis.
MedLine Citation:
PMID:  22907048     Owner:  NLM     Status:  Publisher    
We studied the prognostic value of minimal disseminated disease (MDD) and anti-ALK immune response in children with NPM-ALK-positive anaplastic-large cell lymphoma (ALCL) and evaluated their potential for risk stratification. NPM-ALK transcripts were analyzed by RT-PCR in bone marrow/peripheral blood of 128 ALCL patients at diagnosis, whereas ALK antibody titers in plasma were assessed using an immunocytochemical approach. MDD was positive in 59% of patients and 96% showed an anti-ALK response. Using MDD and antibody titer results, patients could be divided into three biological risk groups (bRG) with different prognosis: high risk (bHR): MDD-positive and antibody titer 1/750, 26/128 (20%); low risk (bLR): MDD negative and antibody titer >1/750, 40/128 (31%); intermediate risk (bIR): all remaining patients, 62/128 (48%). Progression-free survival was 28% (s.e., 9%), 68% (s.e., 6%) and 93% (s.e., 4%) for bHR, bIR and bLR, respectively (P<0.0001). Survival was 71% (s.e., 9%), 83% (s.e., 5%) and 98% (s.e., 2%) for bHR, bIR and bLR (P=0.02). Only bHR and histology other than common type were predictive of higher risk of failure (hazard ratio 4.9 and 2.7, respectively) in multivariate analysis. Stratification of ALCL patients based on MDD and anti-ALK titer should be considered in future ALCL trials to optimize treatment.Leukemia advance online publication, 21 August 2012; doi:10.1038/leu.2012.205.
L Mussolin; C Damm-Welk; M Pillon; M Zimmermann; G Franceschetto; K Pulford; A Reiter; A Rosolen; W Woessmann
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-18
Journal Detail:
Title:  Leukemia : official journal of the Leukemia Society of America, Leukemia Research Fund, U.K     Volume:  -     ISSN:  1476-5551     ISO Abbreviation:  Leukemia     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-8-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8704895     Medline TA:  Leukemia     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Clinica di Oncoematologia Pediatrica and Fondazione Città della Speranza, Azienda Ospedaliera-Università di Padova, on behalf of the Linfoma non-Hodgkin Working Group AIEOP (Associazione Italiana Emato-Oncologia Pediatrica), Padova, Italy.
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