Six Candidate miRNAs Associated With Early Relapse in Pediatric B-Cell Acute Lymphoblastic Leukemia. Anticancer Res 2020 Jun;40(6):3147-3153
Date
06/04/2020Pubmed ID
32487609Pubmed Central ID
PMC7722248DOI
10.21873/anticanres.14296Scopus ID
2-s2.0-85085908494 (requires institutional sign-in at Scopus site) 11 CitationsAbstract
BACKGROUND/AIM: Few studies have evaluated the role of miRNAs in pediatric acute lymphoblastic leukemia (ALL) relapse and a consensus of a clinically significant miRNA signature is yet to be identified. In this study, we evaluated miRNAs associated with pediatric B-ALL early relapse in two independent sample sets.
MATERIALS AND METHODS: We performed global miRNA profiling on diagnostic bone marrow specimens from six early relapse (≤3 years after diagnosis) and six age- and cytogenetics-matched prolonged remission (≥4 years) patients (first set) and an independent set of 14 early relapse and 14 matched prolonged remission specimens (second set).
RESULTS: Twelve and 39 top differentially expressed miRNAs were observed in the first and second sets, respectively; however, there was no overlap between the top candidates. In post-hoc analyses six miRNAs (miR-101-3p, miR-4774-5p, miR-1324, miR-631, miR-4699-5p and miR-922) among the top candidates in the second, but not the first set, were consistently upregulated in early relapse compared to remission specimens in both first (fold change=1.13-2.19, q<0.38) and second (fold change=1.48-4.78, all q<0.05) sets. Four (miR-631, mir-101-3p, miR-922 and miR-1324) of these miRNAs have been previously implicated in key functional oncogenic pathways in adult cancers.
CONCLUSION: This study suggests that six candidate miRNAs, not previously implicated in pediatric ALL, are associated with early relapse in pediatric B-ALL. Validation and investigation of mechanistic roles of these miRNAs in a larger cohort are warranted, so that they may be used as prognostic markers for early relapse of pediatric B-ALL.
Author List
Amankwah EK, Devidas M, Teachey DT, Rabin KR, Brown PAAuthor
Ernest Amankwah PhD Director, Associate Professor in the Clinical and Translational Science Institute department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdolescentB-Lymphocytes
Child
Child, Preschool
Female
Humans
Infant
Male
MicroRNAs
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Recurrence
