MicroRNA-206 as a Novel Potential Prognostic Biomarker for Distinguishing Philadelphia Chromosome-Positive and Negative ALL Patients
Abstract
Background: MicroRNAs (miRNAs) are a group of small non-coding RNAs that control protein-coding gene expression, and alterations in their expression are associated with leukemic changes in hematopoietic cells. The current study was performed on bone marrow samples from Philadelphia chromosome-positive (Ph+) and Philadelphia chromosome-negative (Ph−) ALL patients to assess miR-320a and miR-206, as well as their relationship with the prognosis of ALL.
Materials and Methods: miR-206 and miR-320a expression levels were assessed using Real-Time PCR in 50 bone marrow specimens from 10 healthy individuals (as a control group), 20 Ph+ ALL patients, and 20 Ph- ALL patients. The data were analyzed using GraphPad Prism version 7, one-way ANOVA, and Chi-square tests.
Results: The present study reports on the differential expression of miR-206 in Ph- and Ph+ ALL groups in comparison to normal individuals. The Ph- ALL group exhibited a significant 3.8-fold reduction in expression (P = 0.004), while the Ph+ ALL group demonstrated a noteworthy 5.34-fold increase in expression (P = 0.006) relative to the control group, although no statistically significant differences were observed in the comparison of miR-320a expression between Ph+ and Ph- patients (P = 0.496 and P = 0.645, respectively). Data analysis showed no relationship between age, sex, and miRNA expression.
Conclusion: MiR-206 showed a different expression pattern, and it seems that this miRNA was upregulated in Ph+ ALL and downregulated in Ph- ALL patients, and may serve as a potential prognostic and diagnostic biomarker for distinguishing between the two ALL groups.