Differential miRNA expression in childhood acute lymphoblastic leukemia and association with clinical and biological features

Leuk Res. 2012 Mar;36(3):293-8. doi: 10.1016/j.leukres.2011.10.005. Epub 2011 Nov 17.

Abstract

The present study aimed to analyze the expression profile of the microRNAs previously described as associated with childhood ALL, miR-92a, miR-100, miR-125a-5p, miR-128a, miR-181b, miR-196b and let-7e, and their association with biological/prognostic features in 128 consecutive samples of childhood acute lymphoblastic leukemia (ALL) by quantitative real-time PCR. A significant association was observed between higher expression levels of miR-196b and T-ALL, miR-100 and patients with low white blood cell count at diagnosis and t(12;21) positive ALL. These findings suggest a potential activity of these microRNAs in pediatric ALL biology.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Case-Control Studies
  • Child
  • Child, Preschool
  • Chromosomes, Human, Pair 12 / genetics
  • Chromosomes, Human, Pair 21 / genetics
  • Female
  • Gene Expression Profiling
  • Humans
  • Infant
  • Infant, Newborn
  • Leukocyte Count
  • Male
  • MicroRNAs / genetics*
  • Neoplasm Staging
  • Neoplasm, Residual / genetics*
  • Neoplasm, Residual / pathology
  • Precursor Cell Lymphoblastic Leukemia-Lymphoma / genetics*
  • Precursor Cell Lymphoblastic Leukemia-Lymphoma / pathology
  • Precursor T-Cell Lymphoblastic Leukemia-Lymphoma / genetics*
  • Precursor T-Cell Lymphoblastic Leukemia-Lymphoma / pathology
  • Prognosis
  • Real-Time Polymerase Chain Reaction
  • Reverse Transcriptase Polymerase Chain Reaction
  • Translocation, Genetic / genetics

Substances

  • MicroRNAs