Treatment of pediatric acute lymphoblastic leukemia: progress achieved and challenges remaining.
Acute lymphoblastic leukemia (ALL) is the most common cancer in children. Careful building upon past clinical trials and thoughtful application of our limited knowledge of pharmacology have provided steady improvement in outcome for newly diagnosed patients. Precise identification of the many patients who are unlikely to relapse with current effective regimens is required to avoid the morbidity of further intensification of therapy. Progress is sorely lacking for relapsed patients. Most patients who relapse die. Gene expression arrays and comparative genomic hybridization have further extended our appreciation of the known immunophenotypic and genetic diversity of childhood ALL. Insight into the molecular mechanisms of treatment failure may provide guidance for future efforts.
Gaynon
Paul S
PS
Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, 4650 Sunset Boulevard, Los Angeles, CA 90027, USA. pgaynon@chla.usc.edu
D000293:Adolescent; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000009:adverse effects / Q000627:therapeutic use*; D002490:Central Nervous System / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D002986:Clinical Trials as Topic / Q000706:statistics & numerical data; D003131:Combined Modality Therapy; D016371:Cranial Irradiation / Q000009:adverse effects; D018572:Disease-Free Survival; D005260:Female; D005544:Forecasting; D006801:Humans; D007223:Infant; D017254:Leukemic Infiltration; D008297:Male; D015337:Multicenter Studies as Topic / Q000706:statistics & numerical data; D018365:Neoplasm, Residual; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000188:drug therapy* / Q000235:genetics / Q000473:pathology / Q000601:surgery; D012008:Recurrence; D016879:Salvage Therapy; D033581:Stem Cell Transplantation / Q000009:adverse effects; D016896:Treatment Outcome