Document Detail

Dendritic cell regeneration in the bone marrow of children treated for acute lymphoblastic leukaemia.
MedLine Citation:
PMID:  17892461     Owner:  NLM     Status:  MEDLINE    
Dendritic cells (DC) play a pivotal role in coordinating functions of the immune system. Little is known about DC levels in the bone marrow (BM) of patients receiving cytostatic treatment. We investigated DC levels by flow cytometry in BM at diagnosis, during and post-treatment in 76 children with acute lymphoblastic leukaemia (ALL). The levels of both plasmacytoid DC (pDC) and myeloid DC (mDC) were profoundly reduced at diagnosis. However, the levels of pDC and mDC were significantly higher in T-precursor ALL patients when compared with B-precursor ALL patient group (P = 0.044 and 0.041 respectively). Both subsets normalized in both standard-risk (SR) and high-risk patients after the end of induction at day 50. Patients with minimal residual disease (MRD) at day 50 had significantly higher pDC levels than MRD-negative patients (P = 0.021). In B-precursor SR ALL patients, mDC levels but not pDC levels decreased during prolonged maintenance treatment, remaining reduced at the end of treatment (P = 0.032) and at 6 months post-treatment (P = 0.028). In conclusion, levels of DC in BM normalize quickly in children treated for ALL. Long-term treatment may more profoundly affect mDC subset, which shows reduced levels several months after treatment.
E Laane; E Björklund; J Mazur; G Lönnerholm; S Söderhäll; A Porwit
Publication Detail:
Type:  Historical Article; Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-09-24
Journal Detail:
Title:  Scandinavian journal of immunology     Volume:  66     ISSN:  0300-9475     ISO Abbreviation:  Scand. J. Immunol.     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-10-23     Completed Date:  2007-12-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0323767     Medline TA:  Scand J Immunol     Country:  England    
Other Details:
Languages:  eng     Pagination:  572-83     Citation Subset:  IM    
Department of Pathology and Cytology, Karolinska University Hospital, Solna, Sweden.
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MeSH Terms
Antineoplastic Combined Chemotherapy Protocols / therapeutic use*
Bone Marrow Cells / drug effects*
Child, Preschool
Dendritic Cells / drug effects*
Flow Cytometry
History, Ancient
Neoplasm, Residual
Precursor Cell Lymphoblastic Leukemia-Lymphoma / drug therapy*

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