scholarly journals Focus on Noncoding RNA Regulation of Plant-Microbe Interactions

2016 ◽  
Vol 29 (3) ◽  
pp. 155-155
Author(s):  
John P. Carr ◽  
Steven A. Whitham

Investigations in recent years have uncovered important roles for RNA molecules that do not encode proteins (‘noncoding RNAs’) but which, nevertheless, exert powerful effects on gene expression at both transcriptional and posttranscriptional levels. Our late colleague Biao Ding, who died unexpectedly on June 25, 2015, proposed a Focus Issue on the roles in plant-microbe interactions of noncoding RNAs, whether of plant or microbial origin and including small interfering (si)RNAs, microRNAs, phased siRNAs, and long noncoding RNAs, as well as viroids and satellite RNAs. The Editorial Board of MPMI has decided to dedicate this Focus Issue to the memory of Professor Biao Ding, a valued and deeply missed colleague and friend.

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Guangbing Li ◽  
Haohai Zhang ◽  
Xueshuai Wan ◽  
Xiaobo Yang ◽  
Chengpei Zhu ◽  
...  

Long noncoding RNAs (lncRNAs) have been attracting immense research interests. However, only a handful of lncRNAs had been thoroughly characterized. They were involved in fundamental cellular processes including regulation of gene expression at epigenetics as well as tumorogenesis. In this paper, we give a systematic and comprehensive review of existing literature about lncRNA involvement in hepatocellular carcinoma. This review exhibited that lncRNAs played important roles in tumorigenesis and subsequent prognosis and metastasis of hepatocellular carcinoma and elucidated the role of some specific lncRNAs such as MALAT1 and HOTAIR in the pathophysiology of hepatocellular carcinoma and their potential of being therapeutic targets.


2021 ◽  
Vol 14 ◽  
Author(s):  
Meng Zhang ◽  
Ping He ◽  
Zhigang Bian

Neurodegenerative diseases (NDDs), including Alzheimer’s disease (AD), Parkinson’s disease (PD), Huntington’s disease (HD), and amyotrophic lateral sclerosis (ALS), are progressive and ultimately fatal. NDD onset is influenced by several factors including heredity and environmental cues. Long noncoding RNAs (lncRNAs) are a class of noncoding RNA molecules with: (i) lengths greater than 200 nucleotides, (ii) diverse biological functions, and (iii) highly conserved structures. They directly interact with molecules such as proteins and microRNAs and subsequently regulate the expression of their targets at the genetic, transcriptional, and post-transcriptional levels. Emerging studies indicate the important roles of lncRNAs in the progression of neurological diseases including NDDs. Additionally, improvements in detection technologies have enabled quantitative lncRNA detection and application to circulating fluids in clinical settings. Here, we review current research on lncRNAs in animal models and patients with NDDs. We also discuss the potential applicability of circulating lncRNAs as biomarkers in NDD diagnostics and prognostics. In the future, a better understanding of the roles of lncRNAs in NDDs will be essential to exploit these new therapeutic targets and improve noninvasive diagnostic methods for diseases.


2016 ◽  
Author(s):  
Tom Pettini ◽  
Matthew Ronshaugen

ABSTRACTLong noncoding RNAs have emerged as abundant and important regulators of gene expression in diverse animals. In D. melanogaster several lncRNAs involved in regulating Hox gene expression in the Bithorax Complex have been reported. However, no functional Hox long noncoding RNAs have been described in the Antennapedia Complex. Here we have characterized a long noncoding RNA lincX from the Antennapedia Complex, that is transcribed from previously identified cis-regulatory sequences of the Hox gene Sex combs reduced (Scr). We use both the GAL4-UAS system and mutants to ectopically overexpress the lincX RNA from exogenous and endogenous loci respectively, in order to dissect the potential regulatory functions of lincX RNA versus lincX transcription. Our findings suggest that transcription through the lincX locus, but not the lincX RNA itself, may facilitate initiation of Scr in cis in the early embryo. Transvection phenomena, where regulatory sequences on one chromosome can affect expression on the homolog, have previously been reported in genetic studies of Scr. By analysing lincX and Scr nascent transcriptional sites in embryos heterozygous for a gain of function mutation, we directly visualize this transvection, and observe that the ectopic lincX transcriptional state appears to be relayed in trans to the homologous wild-type chromosome. This trans-activation of lincX correlates with both ectopic activation of Scr in cis, and increased chromosomal proximity. Our results are consistent with a model whereby early long noncoding RNA transcription through cis-regulatory sequences can be communicated between chromosomes, and facilitates long-range initiation of Hox gene expression in cis.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Jen-Yang Tang ◽  
Jin-Ching Lee ◽  
Yung-Ting Chang ◽  
Ming-Feng Hou ◽  
Hurng-Wern Huang ◽  
...  

Long noncoding RNA (lncRNA) function is described in terms of related gene expressions, diseases, and cancers as well as their polymorphisms. Potential modulators of lncRNA function, including clinical drugs, natural products, and derivatives, are discussed, and bioinformatic resources are summarized. The improving knowledge of the lncRNA regulatory network has implications not only in gene expression, diseases, and cancers, but also in the development of lncRNA-based pharmacology.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Zhang-Wei Liu ◽  
Nan Zhao ◽  
Yin-Na Su ◽  
Shan-Shan Chen ◽  
Xin-Jian He

An amendment to this paper has been published and can be accessed via a link at the top of the paper.


2021 ◽  
Vol 72 (1) ◽  
Author(s):  
Andrzej T. Wierzbicki ◽  
Todd Blevins ◽  
Szymon Swiezewski

Plants have an extraordinary diversity of transcription machineries, including five nuclear DNA-dependent RNA polymerases. Four of these enzymes are dedicated to the production of long noncoding RNAs (lncRNAs), which are ribonucleic acids with functions independent of their protein-coding potential. lncRNAs display a broad range of lengths and structures, but they are distinct from the small RNA guides of RNA interference (RNAi) pathways. lncRNAs frequently serve as structural, catalytic, or regulatory molecules for gene expression. They can affect all elements of genes, including promoters, untranslated regions, exons, introns, and terminators, controlling gene expression at various levels, including modifying chromatin accessibility, transcription, splicing, and translation. Certain lncRNAs protect genome integrity, while others respond to environmental cues like temperature, drought, nutrients, and pathogens. In this review, we explain the challenge of defining lncRNAs, introduce the machineries responsible for their production, and organize this knowledge by viewing the functions of lncRNAs throughout the structure of a typical plant gene. Expected final online publication date for the Annual Review of Plant Biology, Volume 72 is May 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.


2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 251.1-251
Author(s):  
J. M. Kim ◽  
H. J. Kang ◽  
S. J. Jung ◽  
B. W. Song ◽  
H. J. Jeong ◽  
...  

Background:Long noncoding RNAs (lncRNAs) have recently emerged as important biological regulators and the aberrant expression of lncRNAs has been reported in various diseases including cancer, cardiovascular disease, and diabetes mellitus. However, the role of lncRNAs in the pathogenesis of rheumatoid arthritis (RA) remains unknown.Objectives:Thus, we studied lncRNAs influenced by IL-1, which is one of the key mediators in the pathogenesis of RA, and also investigated whether regulation of NF-κB activation, which is known to be induced by IL-1, could lead to the changes of expression of those lncRNAs.Methods:Fibroblast-like synoviocytes (FLS) were obtained from the knee joints of the patients with RA. The next-generation sequencing (NGS) data were analyzed to identify differentially expressed lncRNAs between unstimulated RA FLS and IL-1-stimulated RA FLS. The expression levels of the top 5 candidates in NGS data were validated by RT-qPCR using extended number of unstimulated RA FLS and IL-1-stimulated RA FLS. IMD-0560, an inhibitor of IκB kinase (IKK) was used for the regulation of NF-κB activation. Activation and inhibition of NF-κB were confirmed by Western blotting. Changed expressions of the lncRNAs were identified by RT-qPCR.Results:NGS analysis revealed up-regulated 30 lncRNAs and down-regulated 15 lncRNAs in IL-1-treated RA FLS compared with unstimulated RA FLS. Top 5 lncRNAs were selected among 30 lncRNAs up-regulated by IL-1 in RA FLS based on fold-change with P-value cutoff. The up-regulated lncRNAs including NR_046035, NR_027783, NR_033422, NR_003133, and NR_049759 were validated by RT-qPCR. IMD-0560 inhibited phosphorylation of IκBα induced by IL-1 in RA FLS. Overexpression of lncRNAs induced by IL-1 was also inhibited by IMD-0560 in RA FLS.Conclusion:Our study revealed that IL-1 increased the expression of NR_046035, NR_027783, NR_033422, NR_003133, and NR_049759 in RA FLS. In addition, the expression of these lncRNAs was regulated by inhibition of NF-κB activation. Thus, our data suggest that the lncRNAs might be involved in the pathogenesis of RA through NF-κB signaling pathway.References:[1]Long noncoding RNAs and human disease. Trends Cell Biol. 2011 Jun;21(6):354-61.[2]A long noncoding RNA mediates both activation and repression of immune response genes. Science. 2013 Aug 16;341(6147):789-92.[3]Long noncoding RNA expression profile in fibroblast-like synoviocytes from patients with rheumatoid arthritis. Arthritis Res Ther. 2016 Oct 6;18(1):227.Disclosure of Interests:None declared


2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Yan Zhang ◽  
Xianwu Chen ◽  
Juntao Lin ◽  
Xiaodong Jin

AbstractBladder cancer (BCa) is one of the 10 most common cancers with high morbidity and mortality worldwide. Long noncoding RNAs (lncRNAs), a large class of noncoding RNA transcripts, consist of more than 200 nucleotides and play a significant role in the regulation of molecular interactions and cellular pathways during the occurrence and development of various cancers. In recent years, with the rapid advancement of high-throughput gene sequencing technology, several differentially expressed lncRNAs have been discovered in BCa, and their functions have been proven to have an impact on BCa development, such as cell growth and proliferation, metastasis, epithelial-mesenchymal transition (EMT), angiogenesis, and drug-resistance. Furthermore, evidence suggests that lncRNAs are significantly associated with BCa patients’ clinicopathological characteristics, especially tumor grade, TNM stage, and clinical progression stage. In addition, lncRNAs have the potential to more accurately predict BCa patient prognosis, suggesting their potential as diagnostic and prognostic biomarkers for BCa patients in the future. In this review, we briefly summarize and discuss recent research progress on BCa-associated lncRNAs, while focusing on their biological functions and mechanisms, clinical significance, and targeted therapy in BCa oncogenesis and malignant progression.


2021 ◽  
Vol 21 ◽  
Author(s):  
Afsane Bahrami ◽  
Gordon A. Ferns

: MicroRNAs (miRs) is a class of conserved, small, noncoding RNA molecules which modulate gene expression post-transcriptionally. miR-148b is a member of miR-148/152 family generally known to be a tumor suppressor via its affect on different signaling pathways and regulatory genes. Aberrant expression of miR-148b has recently been shown to be responsible for tumorigenesis for several different cancer types. This review discusses the current evidences regarding the involvement of miR-148b expression in human cancers and its potential clinical importance for tumor diagnosis, prognosis, and therapeutics.


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