scholarly journals Identification of hsa-miR-106a-5p as an impact agent on promotion of multiple sclerosis using multi-step data analysis

2020 ◽  
Author(s):  
Samira Rahimirad ◽  
Mohammad Navaderi ◽  
Shokoofeh Alaei ◽  
Mohammad Hossein Sanati
Keyword(s):  
Gene Expression ◽  
Multiple Sclerosis ◽  
Demyelinating Disease ◽  
Expression Patterns ◽  
Regulation Of Gene Expression ◽  
Blood Samples ◽  
Non Coding Rna ◽  
Healthy Control ◽  
Post Transcriptional Regulation ◽  
Signal Transductions

AbstractMultiple Sclerosis (MS) is a chronic, demyelinating disease in which the neuron myelin sheath is disrupted and leading to signal transductions disabilities. The evidence demonstrated that gene expression patterns and their related regulating factors are the most critical agents in Multiple Sclerosis demyelinating process. A miRNA is a small non-coding RNA which functions in post-transcriptional regulation of gene expression. Identification of specific miRNA dysregulation patterns in multiple sclerosis blood samples compared to healthy control can be used as a diagnostic and prognostic agent. Through the literature review and bioinformatics analysis, it was found that the hsa-miR-106a-5p can be considered as a significant MS pathogenic factor, which seems has an abnormal expression pattern in patients’ blood. Experimental validation using Real-Time PCR assay was carried to verifying the miR-106a-5p expression in Multiple Sclerosis and healthy control blood samples. The obtained results proved the miR-106a dysregulation in MS patients. The expression levels of miR-106a-5p were significantly down-regulated (Fold change=0.44) in patient blood samples compared to controls (p=0.059). Our study suggested that miR-106a-5p may have a biomarker potential to the diagnosis of MS patients based on its dysregulation patterns in Multiple Sclerosis blood.

scholarly journals Long non-coding RNAs in brain tumors

NAR Cancer ◽  
2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Keisuke Katsushima ◽  
George Jallo ◽  
Charles G Eberhart ◽  
Ranjan J Perera
Keyword(s):  
Gene Expression ◽  
Brain Tumors ◽  
Brain Cancer ◽  
Regulation Of Gene Expression ◽  
Therapeutic Targets ◽  
Diagnostic Biomarkers ◽  
Cancer Pathogenesis ◽  
Current State ◽  
Non Coding Rnas ◽  
Post Transcriptional Regulation

Abstract Long non-coding RNAs (lncRNAs) have been found to be central players in the epigenetic, transcriptional and post-transcriptional regulation of gene expression. There is an accumulation of evidence on newly discovered lncRNAs, their molecular interactions and their roles in the development and progression of human brain tumors. LncRNAs can have either tumor suppressive or oncogenic functions in different brain cancers, making them attractive therapeutic targets and biomarkers for personalized therapy and precision diagnostics. Here, we summarize the current state of knowledge of the lncRNAs that have been implicated in brain cancer pathogenesis, particularly in gliomas and medulloblastomas. We discuss their epigenetic regulation as well as the prospects of using lncRNAs as diagnostic biomarkers and therapeutic targets in patients with brain tumors.

Post-transcriptional regulation of gene expression

Methods ◽  
2017 ◽  
Vol 126 ◽  
pp. 1-2 ◽  
Author(s):  
Howard D. Lipshitz ◽  
Julie M. Claycomb ◽  
Craig A. Smibert
Keyword(s):  
Gene Expression ◽  
Transcriptional Regulation ◽  
Regulation Of Gene Expression ◽  
Post Transcriptional Regulation

scholarly journals Cell-type Specific Expression Quantitative Trait Loci Associated with Alzheimer Disease in Blood and Brain Tissue

2020 ◽  
Author(s):  
Devanshi Patel ◽  
Xiaoling Zhang ◽  
John J. Farrell ◽  
Jaeyoon Chung ◽  
Thor D. Stein ◽  
...  
Keyword(s):  
Gene Expression ◽  
Quantitative Trait ◽  
Expression Patterns ◽  
Regulation Of Gene Expression ◽  
Cell Types ◽  
Eqtl Analysis ◽  
Cell Type ◽  
Specific Expression ◽  
Cell Type Specific Expression ◽  
Cell Type Specific

ABSTRACTBecause regulation of gene expression is heritable and context-dependent, we investigated AD-related gene expression patterns in cell-types in blood and brain. Cis-expression quantitative trait locus (eQTL) mapping was performed genome-wide in blood from 5,257 Framingham Heart Study (FHS) participants and in brain donated by 475 Religious Orders Study/Memory & Aging Project (ROSMAP) participants. The association of gene expression with genotypes for all cis SNPs within 1Mb of genes was evaluated using linear regression models for unrelated subjects and linear mixed models for related subjects. Cell type-specific eQTL (ct-eQTL) models included an interaction term for expression of “proxy” genes that discriminate particular cell type. Ct-eQTL analysis identified 11,649 and 2,533 additional significant gene-SNP eQTL pairs in brain and blood, respectively, that were not detected in generic eQTL analysis. Of note, 386 unique target eGenes of significant eQTLs shared between blood and brain were enriched in apoptosis and Wnt signaling pathways. Five of these shared genes are established AD loci. The potential importance and relevance to AD of significant results in myeloid cell-types is supported by the observation that a large portion of GWS ct-eQTLs map within 1Mb of established AD loci and 58% (23/40) of the most significant eGenes in these eQTLs have previously been implicated in AD. This study identified cell-type specific expression patterns for established and potentially novel AD genes, found additional evidence for the role of myeloid cells in AD risk, and discovered potential novel blood and brain AD biomarkers that highlight the importance of cell-type specific analysis.

scholarly journals Post-transcriptional regulation of gene expression by degradation of messenger RNAs

2003 ◽  
Vol 195 (3) ◽  
pp. 356-372 ◽  
Author(s):  
Annamaria Bevilacqua ◽  
Maria Cristina Ceriani ◽  
Sergio Capaccioli ◽  
Angelo Nicolin
Keyword(s):  
Gene Expression ◽  
Transcriptional Regulation ◽  
Regulation Of Gene Expression ◽  
Messenger Rnas ◽  
Post Transcriptional Regulation
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