MicroRNAs regulate critical genes associated with multiple myeloma pathogenesis.

ABSTRACT: Progress in understanding the biology of multiple myeloma (MM), a plasma cell malignancy, has been slow. The discovery of microRNAs (miRNAs), a class of small noncoding RNAs targeting multiple mRNAs, has revealed a new level of gene expression regulation. To determine whether miRNAs play a role in the malignant transformation of plasma cells (PCs), we have used both miRNA microarrays and quantitative real time PCR to profile miRNA expression in MM-derived cell lines (n = 49) and CD138+ bone marrow PCs from subjects with MM (n = 16), monoclonal gammopathy of undetermined significance (MGUS) (n = 6), and normal donors (n = 6). We identified overexpression of miR-21, miR-106b approximately 25 cluster, miR-181a and b in MM and MGUS samples with respect to healthy PCs. Selective up-regulation o

SUBMITTER: Pichiorri F 

PROVIDER: S-EPMC2529070 | biostudies-literature | 2008 Sep

REPOSITORIES: biostudies-literature