15 Differentially Expressed Long Non-coding RNA Associated with Gastrointestinal Nematode Infection in Divergent Immune Response Sheep

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 7-8
Author(s):  
Maria Malane M Muniz ◽  
Mohammed Boareki ◽  
Samantha Dixon ◽  
Andrew S Peregrine ◽  
Paula Menzies ◽  
...  

Abstract Gastrointestinal nematode infection is one of the major production problems for sheep producers worldwide due its high incidence, morbidity, and mortality in affected flocks. The study of long non-coding RNA (lncRNA) in liver tissue of high (HIR) and low immune responder (LIR) sheep to GINs using RNA-Sequencing technology may provide a better understanding of the gene regulation mechanism associated with the host response to the infection. The aim of this study was to identify differentially expressed (DE) lncRNA between HIR and LIR natural infested sheep and control group. Liver tissue samples from the 13 divergent animals (out of a population of 211) based on their immunoglobulin G levels after vaccination using Hen Egg White (HEW) Lysozyme, and immature abomasum worm counts [HIR (> 4000) (n = 5), LIR (< 1500) (n=5) and control (no parasite challenge) (n=4) groups] were used to perform transcriptomic analysis using RNA-Sequencing. The “Large Gap read mapping “and “Transcript Discovery” tools from CLC Genomics Workbench 20.0.4 (CLC Bio, Aarhus, Denmark), were used to map reads to a reference genome (Oar_rambouillet_v1.0) and transcript discovery, respectively. The FEELnc software was used to identify, from predicted transcript model, potential lncRNAs and classify those transcripts into intro putative lncRNAs and protein coding RNAs. As preliminary results, 8 and 48 DE lncRNAs for HIR and LIR compared to control group were identified, respectively using an adjusted p-value False Discovery Rate (FDR) < 0.05 and Fold change (FC) abs > 2. Functional analyses using the list of DE lncRNAs identified metabolic pathways related to immune function. In depth analysis will help to better understand the physiological mechanisms of resilience of high immune sheep.

2022 ◽  
Vol 12 ◽  
Author(s):  
Beatrice E. Gee ◽  
Andrea Pearson ◽  
Iris Buchanan-Perry ◽  
Roger P. Simon ◽  
David R. Archer ◽  
...  

Whole transcriptome RNA-sequencing was performed to quantify RNA expression changes in whole blood samples collected from steady state sickle cell anemia (SCA) and control subjects. Pediatric SCA and control subjects were recruited from Atlanta (GA)—based hospital(s) systems and consented for RNA sequencing. RNA sequencing was performed on an Ion Torrent S5 sequencer, using the Ion Total RNA-seq v2 protocol. Data were aligned to the hg19 reference genome and analyzed in the Partek Genomics studio package (v7.0). 223 genes were differentially expressed between SCA and controls (± 1.5 fold change FDR p < 0.001) and 441 genes show differential transcript expression (± 1.5 fold FDR p < 0.001). Differentially expressed RNA are enriched for hemoglobin associated genes and ubiquitin-proteasome pathway genes. Further analysis shows higher gamma globin gene expression in SCA (33-fold HBG1 and 49-fold HBG2, both FDR p < 0.05), which did not correlate with hemoglobin F protein levels. eQTL analysis identified SNPs in novel non-coding RNA RYR2 gene as having a potential regulatory role in HBG1 and HBG2 expression levels. Gene expression correlation identified JHDM1D-AS1(KDM7A-DT), a non-coding RNA associated with angiogenesis, enhanced GATA1 and decreased JAK-STAT signaling to correlate with HBG1 and HBG2 mRNA levels. These data suggest novel regulatory mechanisms for fetal hemoglobin regulation, which may offer innovative therapeutic approaches for SCA.


2021 ◽  
Author(s):  
Wei Chen ◽  
Peiying Teng ◽  
Heng Yang ◽  
Jing Li ◽  
Fan Yang

Abstract Hand, foot, and mouth disease caused by Coxsackievirus B5 (CV-B5) poses considerable threats to the health of infants especially in neurological damage. And the long noncoding RNAs (lncRNAs) act pivotal factors in regulating and participating in virus-host interactions. However, the role of lncRNAs in CV-B5-host interactions has not yet been elucidated. In this study, we used the RNA sequencing to determine the expression profiles of lncRNAs in CV-B5 infected human rhabdomyosarcoma (RD) and SH-SY5Y cells. Our results identified that in the differentially expressed lncRNAs a total of 508 up-regulated and 760 down-regulated lncRNAs in RD cell, with 46.2% were lincRNAs, 28.6% were anti-sense lncRNAs, 24.1% were sense overlapping lncRNAs, and 1.0% were sense intronic lncRNAs. Moreover, 792 lncRNAs were significantly increased and 811 lncRNAs were greatly decreased in SH-SY5Y cell including 48.6% were lincRNAs, 34.7% were anti-sense lncRNAs, 16.0% were sense overlapping lncRNAs, and 0.8% were sense intronic lncRNAs. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway showed that the differentially expressed lncRNAs participated in the occurrence of disease in RD cell and associated with signaling pathway in SH-SY5Y cell after CVB5 infection respectively. In addition, similar results were obtained when seven lncRNAs were selected for validation using RT-qPCR assays. Moreover, we conducted the candidate lncRNA-IL12A secondary structures and found that it inhibits viral replication through Wnt signaling pathway. Our results reveal that lncRNAs can become a possible novel molecular target for the prevention and treatment of CV-B5 infection, and provided information for distinguishing neurogenic CV-B5 disease.


Author(s):  
Katarzyna Piórkowska ◽  
Kacper Żukowski ◽  
Katarzyna Ropka-Molik ◽  
Mirosław Tyra

Obesity is a problem in the last decades since the development of different technologies forced the submission of a faster pace of life, resulting in nutrition style changes. In turn, domestic pigs are an excellent animal model in recognition of adiposity-related processes, corresponding to the size of individual organs, the distribution of body fat in the organism, and similar metabolism. The present study applied the next-generation sequencing method to identify adipose tissue (AT) transcriptomic signals related to increased fat content by identifying differentially expressed genes (DEGs), included long-non coding RNA molecules. The Freiburg RNA tool was applied to recognise predicting hybridisation energy of RNA-RNA interactions. The results indicated several long non-coding RNAs (lncRNAs) whose expression was significantly positively or negatively associated with fat deposition. lncRNAs play an essential role in regulating gene expression by sponging miRNA, binding transcripts, facilitating translation, or coding other smaller RNA regulatory elements. In the pig fat tissue of obese group, increased expression of lncRNAs corresponding to human MALAT1 was observed that previously recognised in the obesity-related context. Moreover, hybridisation energy analyses pinpointed numerous potential interactions between identified differentially expressed lncRNAs, and obesity-related genes and miRNAs expressed in AT.


Author(s):  
В.Д. Якушина ◽  
А.С. Танас ◽  
А.В. Лавров

Актуальность. Длинные некодирующие РНК (днРНК) при раке щитовидной железы плохо изучены; не известны днРНК, общие и специфичные для фолликулярного и классического вариантов папиллярного рака, не установлены днРНК, аберрантно экспрессированные при других основных субтипах злокачественных новообразований щитовидной железы, а также при доброкачественных новообразованиях. Цель исследования - определить днРНК, аберрантно экспрессированные при фолликулярной аденоме (ФА), фолликулярном раке (ФРЩЖ), фолликулярном и классическом вариантах папиллярного рака (ПРЩЖ), анапластическом раке (АРЩЖ) щитовидной железы. Методы. Проанализирована экспрессия днРНК по данным исследований на микрочипах (8 независимых экспериментов, доступных в GEO) и секвенирования РНК (PRJEB11591 и TCGA-THCA). Исследованы 246 образцов нормальной ткани щитовидной железы, 26 - ФА, 30 - ФРЩЖ, 181 - фолликулярного варианта ПРЩЖ, 481 - классического варианта ПРЩЖ и 49 - АРЩЖ. Для классического и фолликулярного вариантов ПРЩЖ выполнена валидация дифференциальной экспрессии in silico. Потенциальные биологические функции были оценены в результате анализа обогащения коэкспрессированных генов. Результаты. Определены днРНК, дифференциально экспрессированные при ФА, ФРЩЖ, фолликулярном и классическом вариантах ПРЩЖ и АРЩЖ. Выявлены 8 днРНК, экспрессия которых изменена во всех субтипах новообразований щитовидной железы, 22 - общих для ПРЩЖ, 32 - специфичных для классического варианта ПРЩЖ, 1 - специфичная для фолликулярного варианта ПРЩЖ, и 177 - специфичных для АРЩЖ. Статистически значимо дифференциально экспрессированных днРНК в ФРЩ по сравнению с ФА не выявлено. Ранее известные онкогенные и супрессорные днРНК NR2F1-AS1, LINC00511, SLC26A4-AS1, CRNDE, RMST впервые обнаружены в новообразованиях щитовидной железы. Выявленные днРНК предположительно вовлечены в клеточную адгезию, организацию экстрацеллюлярного матрикса, образование эндодермы, регуляцию клеточного цикла и митоза, полярности клеток, сигнальные пути VEGF и WNT. Выводы. Установлены общие и специфичные паттерны экспрессии днРНК в доброкачественных и злокачественных новообразованиях щитовидной железы. Background. Long non-coding RNA (lncRNA) in thyroid cancer are poorly investigated; no lncRNAs common and specific for the follicular and classical variants of papillary cancer, as well as no lncRNAs aberrantly expressed in benign nodules or other subtypes of thyroid cancer are established. The objective of the study is to determine long noncoding RNAs aberrantly expressed in follicular adenoma (FA), follicular carcinoma (FTC), follicular and classical variants of papillary carcinoma (PTC), anaplastic carcinoma (ATC). Methods. lncRNA expression was analyzed in dataset of Microarray (8 independent experiments available in GEO) and RNA-seq studies (PRJEB11591 and TCGA-THCA). In total, 246 samples of normal thyroid tissue, 26 FAs, 30 FTCs, 181 follicular variant PTCs, 481 classic variant PTCs and 49 ATCs were examined. In silico validation was performed. Potential biological functions were assessed by enrichment analysis of coexpressed genes. Results. LncRNAs differentially expressed in FA, FTC, follicular, and classical variants of PTC, and ATC are identified. There are 8 lncRNAs common for all investigated thyroid nodules, 22 common for PTC, 32 specific for classical PTC, 1 specific for follicular variant of PTC, and 177 specific for ATC. No lncRNA significantly differentially expressed in FTC compared to FA is identified. The previously described oncogenic and suppressor lncRNAs NR2F1-AS1, LINC00511, SLC26A4-AS1, CRNDE, RMST are detected in thyroid carcinomas for the first time. Identified lncRNA are putatively involved in cell adhesion, extracellular matrix organization, endoderm formation, VEGF signaling pathway, WNT signaling pathway and cell polarity, cell cycle and mitosis. Conclusion. The general and specific patterns of lncRNA expression in benign and malignant thyroid nodules are established.


2021 ◽  
Author(s):  
Xiaochan Chen ◽  
Qi Cheng ◽  
Yan Du ◽  
Lei Liu ◽  
Huaxiang Wu

Abstract Background: Primary Sjögren’s syndrome (pSS) is a chronic autoimmune disease characterized by abnormal immune cell activation. This study aimed to investigate differentially expressed long non-coding RNA (lncRNA) in peripheral blood mononuclear cells (PBMCs) in patients with pSS to identify lncRNAs that affect pSS pathogenesis. Methods: Total RNA was extrated from PBMCs of 30 patients with pSS and 15 healthy persons. Transcriptome sequencing was used to screen differentially expressed lncRNAs and mRNAs in 8 RNA samples from the discovery cohort. The differentially expressed mRNAs underwent functional enrichment analysis. A protein interaction relationship (PPI) and ceRNA network was constructed. Real-time PCR was used to validate screened lncRNAs in all 45 RNA samples. Results: 1180 lncRNAs and 640 mRNAs were differentially expressed in pSS patients (fold change > 2 in healthy persons). The PPI network was constructed with 640 mRNAs and a ceRNA network with four key lncRNAs (GABPB1-AS1, PSMA3-AS1, LINC00847 and SNHG1). RT-PCR revealed that GABPB1-AS1 and PSMA3-AS1 were significantly upregulated 3.0-and 1.4-fold in the pSS group, respectively. The GABPB1-AS1 expression level was positively correlated with the percentage of B cells and IgG levels. Conclusions: GABPB1-AS1 was significently upregulated in pSS patients, and its expression level is positively correlated with the percentage of B cells and IgG levels. GABPB1-AS1 may be involved in the pathogenesis of pSS.


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