Associates with Proliferative Phenotype and Prognostic Features in B-Cell Acute Lymphoblastic Leukemia.

Cancers (Basel)

Tampere Center for Child, Adolescent and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland.

Published: March 2021

The oncofetal protein insulin-like growth factor 2 mRNA-binding protein 3 () belongs to a family of RNA-binding proteins involved in localization, stability, and translational regulation of target RNAs. is used as a diagnostic and prognostic marker in several malignancies. Although the prognosis of pediatric B-cell acute lymphoblastic leukemia (B-ALL) has improved, a subgroup of patients exhibits high-risk features and suffer from disease recurrence. We sought to identify additional biomarkers to improve diagnostics, and we assessed expression of in a population-based pediatric cohort of B-ALL using a tissue microarray platform. The majority of pediatric B-ALL cases were positive for immunohistochemistry and were associated with an increased proliferative phenotype and activated STAT5 signaling pathway. Two large gene expression data sets were probed for the expression of -the highest levels were seen among the B-cell lymphomas of a germinal center origin and well-established (KMT2A-rearranged and ETV6-RUNX1) and novel subtypes of B-ALL (e.g., NUTM1 and ETV6-RUNX1-like). A high mRNA for was associated with a proliferative "metagene" signature and a high expression of in B-ALL. A low expression portended inferior survival in a high-risk cohort of pediatric B-ALL. Overall, our results show that shows subtype-specificity in expression and provides prognostic utility in high-risk B-ALL.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8037952PMC
http://dx.doi.org/10.3390/cancers13071505DOI Listing

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