Circulating miR-95 Is a Potential Biomarker of Chronic Lymphocytic Leukemia

Abstract

Background: MicroRNAs (miRNAs) have crucial roles in cellular and molecular processes related to different malignancies including chronic lymphocytic leukemia(CLL). Studies revealed altered miR-95 expression in several diseases. Long noncoding RNAs (lncRNAs) are a heterogeneous group of non-coding and regulatory
RNAs. The present study was conducted to investigate the association of miR-95 expression with CLL by quantitative real-time PCR.
Materials and Methods: Sixty samples, including 30 CLL and 30 healthy controls, were sampled during a period of 4 months. The expression of miR-95 was evaluated by quantitative real-time PCR in peripheral blood mononuclear cells from patients with CLL and in healthy subjects. Additionally, in silico pathway enrichment analysis was performed on validated and predicted targets of miR-95 in several databases, including miRecords and miRTarBase, while the interactions between predicted putative lncRNAs and genes and miRNA expression were examined with miRWalk.
Results: The expression of miR-95 was found to be significantly reduced in patients with CLL compared to that in healthy controls (P < 0.005).
Conclusion: miR-95 showed potential as a biomarker for the early diagnosis of patients with CLL. LncRNAs play a significant role in regulating cellular evolution, differentiation, and other processes and may be important regulators in tumorigenesis.

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