Tag Archives: miRNA

The Influence of microRNAs and Long Non-Coding RNAs in Cancer Chemoresistance

lncRNA

Innate and acquired chemoresistance exhibited by most tumours exposed to conventional chemotherapeutic agents account for the majority of relapse cases in cancer patients. Such chemoresistance phenotypes are of a multi-factorial nature from multiple key molecular players. The discovery of the RNA interference pathway in 1998 and the widespread gene regulatory influences exerted by microRNAs (miRNAs) and other non-coding RNAs have ...

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In Silico Characterization of miRNA and Long Non-Coding RNA Interplay in Multiple Myeloma

lncRNA

The identification of deregulated microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) in multiple myeloma (MM) has progressively added a further level of complexity to MM biology. In addition, the cross-regulation between lncRNAs and miRNAs has begun to emerge, and theoretical and experimental studies have demonstrated the competing endogenous RNA (ceRNA) activity of lncRNAs as natural miRNA decoys in pathophysiological conditions, ...

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LncRNAs and miRNAs – potential biomarkers and therapeutic targets for prostate cancer

Prostate cancer (PCa) is the second lethal disease for men in western countries. Although androgen receptor (AR) signaling has been widely investigated, noncoding RNAs (ncRNAs), deficient of open reading frame, have also received considerable attention. Growing studies showed that the aberrant ncRNAs expression contributed to cell proliferation, metastasis and drug resistance in PCa. Therefore, therapeutically targeting ncRNAs may synergize androgen ...

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An artificial lncRNA targeting multiple miRNAs overcomes sorafenib resistance in hepatocellular carcinoma cells

lncRNA

Sorafenib resistance remains a major obstacle for the effective treatment of hepatocellular carcinoma (HCC), and a number of miRNAs contribute to this resistance. However, the regulatory networks of miRNAs are very complex, thus inhibiting a single miRNA may sequentially activate other compensatory pathways. In the present study, researchers at Harbin Medical University generated an artificial long non-coding RNA (AlncRNA), which simultaneously ...

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A Primate lncRNA Mediates Notch Signaling during Neuronal Development by Sequestering miRNA

Highlights Identification of LncND with a Catarrhine insertion of 16 MREs for miR-143-3p LncND regulates expression of Notch genes by sequestering miR-143-3p High expression of LncND in radial glia cells in human VZ and OSVZ LncND appears to be involved in the expansion of radial glia cells in primates Long non-coding RNAs (lncRNAs) are a diverse and poorly conserved category ...

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RNA regulatory networks in animals and plants: a long noncoding RNA perspective

A recent highlight of genomics research has been the discovery of many families of transcripts which have function but do not code for proteins. An important group is long noncoding RNAs (lncRNAs), which are typically longer than 200 nt, and whose members originate from thousands of loci across genomes. The authors review progress in understanding the biogenesis and regulatory mechanisms ...

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Non-coding RNA interact to regulate neuronal development and function

The human brain is one of the most complex biological systems, and the cognitive abilities have greatly expanded compared to invertebrates without much expansion in the number of protein coding genes. This suggests that gene regulation plays a very important role in the development and function of nervous system, by acting at multiple levels such as transcription and translation. In ...

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A Feedforward Regulatory Loop involving Long Noncoding RNA Controls Early Phases of Myogenesis

The muscle-specific long noncoding RNA linc-MD1 was shown to be expressed during early phases of muscle differentiation and to trigger the switch to later stages by acting as a sponge for miR-133 and miR-135. Notably, linc-MD1 is also the host transcript of miR-133b, and their biogenesis is mutually exclusive. Here, researchers at Sapienza University of Rome describe that this alternative ...

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Non-coding RNAs in Alzheimer's disease

lncRNA

Alzheimer’s disease (AD) is a complex neurodegenerative disorder and the most common dementia among the elderly. Accumulating research indicates that noncoding RNAs (ncRNAs), especially microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), are increasingly being implicated in AD. MiRNAs are conserved small ncRNAs that control gene expression post-transcriptionally while lncRNAs function in many ways. Recent profiling research in human or mouse ...

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Long non-coding RNA metastasis associated in lung adenocarcinoma transcript 1 derived miniRNA as a novel plasma-based biomarker for diagnosing prostate cancer.

lncRNA

Examining plasma RNA is an emerging non-invasive diagnosis technique. However, whether tumour-derived long non-coding RNAs (lncRNAs) in plasma can be used as a novel approach to detect human prostate cancer (PCa) has not yet been established. The study was divided into three parts: (1) the characteristics of PCa-related lncRNA fragments were systematically studied in the plasma or serum of 25 ...

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