multiple myeloma (mm), is the second most common blood cancer after non-hodgkin’s lymphoma. genetic changes, structural and numerical chromosome anomalies, are involved in pathogenesis of mm, and are among the most important prognostic factors of disease-associated patient survival. micrornas (mirnas) are small 19-22 nucleotide single-stranded rnas involved in important cellular processes. cyto...

objective: micro-rnas (mirnas) are a class of posttranscriptional regulators that play crucial roles in various biological processes. emerging evidence suggests a direct link between mirnas and development of several diseases including type 2 diabetes (t2d). in this study, we aimed to investigate the effect of predicted mirna and target genes on insulin resistance. materials and methods: this e...

Expression of microRNAs changes markedly in tumours and evidence indicates that they are causatively related to tumourigenesis, behaving as tumour suppressor microRNAs or onco microRNAs; in some cases they can behave as both depending on the type of cancer. Some tumour suppressor microRNAs appear to be an integral part of the p53 and Retinoblastoma (RB) network, the main regulatory pathways con...

Background: One of the most remarkable processes during spermatogenesis is the drastic change in gene expression. It has been recently proposed that small RNAs such as micorRNAs (miRNAs) contribute a great deal of function in regulation of the gene expression in sperm. Alterations in miRNAs function prove to be detrimental to proper spermatogenesis. As many patients suffer from idiopathic infer...

MicroRNAs (miRNAs) are small non-coding RNAs 18-25 nucleotides (nt) long able to fine-tune post-transcriptional gene expression. Extensive investigation into biogenesis, mechanism of action and functions of miRNAs has clearly revealed their prompt control in developmental timing, differentiation, proliferation, cell death, and metabolism. Deregulation of miRNA-mediated pathways may contribute t...

Small RNAs (sRNAs) are 18-30 nt non-coding regulatory elements found in diverse organisms, which were initially identified as small double-stranded RNAs in Caenorhabditis elegans. With the development of new and improved technologies, sRNAs have also been identified and characterized in plant systems. Among them, micro RNAs (miRNAs) and small interfering RNAs (siRNAs) are found to be very impor...

The discovery that RNA interference (RNAi) and its functional derivatives, small interfering RNAs (SiRNAs) and micro-RNAs (MiRNAs) could mediate potent and specific gene silencing has raised high hopes for cancer therapeutics. The prevalence of these small (18-25 nucleotide) non-coding rnas in human gene networks, coupled with their unique specificity, has paved the way for the development of n...

Deficiencies in the ATM gene are the underlying cause for ataxia telangiectasia, a syndrome characterized by neurological, motor and immunological defects, and a predisposition to cancer. MicroRNAs (miRNAs) are useful tools for cancer profiling and prediction of therapeutic responses to clinical regimens. We investigated the consequences of ATM deficiency on miRNA expression and associated gene...