MicroRNA profiling in peripheral T-cell lymphoma, not otherwise specified.

Abstract

Peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS) is an obviously heterogeneous and highly invasive malignancy without definite phenotype. MicroRNAs (miRNAs) are powerful gene regulators and have been reported as biomarkers in many malignancies. To discover potential signaling miRNAs in PTCL-NOS distinguished from reactive lymphoid hyperplasia (RLH) and to explore the molecular characteristics based on the discovery. We measured the expression profile of miRNAs in PTCL-NOS and RLH from our patients using a panel PCR array. We used GO-Analysis to evaluate the function of the targets regulated by the detected miRNAs. Then using pathway enrichment analysis, we defined potential pathways connected with the selected miRNAs. We found 20 miRNAs which were remarkably up/down-regulated in PTCL-NOS. GO-Analysis and pathway analysis indicated 61 GOs and 34 signaling pathways that were significantly increased or decreased regarding tumorigenesis, tumor progression, invasion, metastasis, and drug resistance. Briefly, our results suggest that 20 miRNAs have the potential to be used as biomarker for identification of patients with PTCL-NOS.