RNA-binding protein ELAVL4/HuD ameliorates Alzheimer's disease-related molecular changes in human iPSC-derived neurons
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ABSTRACT:
PROVIDER: PRJNA837954 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR19201304_1.fastq.gz | Fastqsanger.gz | |||
| SRR19201304_2.fastq.gz | Fastqsanger.gz | |||
| SRR19201305_1.fastq.gz | Fastqsanger.gz | |||
| SRR19201305_2.fastq.gz | Fastqsanger.gz | |||
| SRR19201306_1.fastq.gz | Fastqsanger.gz |
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Project description:We generated ELAVL4 knockout (KO), overexpression (OE), and rescue human induced pluripotent stem cell-derived neurons to study the effect that ELAVL4 has on AD-related cellular phenotypes. To gain insight into the molecular cascades involved in neuronal ELAVL4 signaling, we then performed gene expression profiling analysis using data obtained from RNA-seq using triplicate samples for each condition
2022-07-26 | GSE202985 | GEO
Project description:The neuronal ELAV-like RNA-binding protein HuD (ELAVL4) plays important roles in multiple post-transcriptional regulatory processes, including RNA stability, transport and translation. Besides its functional role in neuronal plasticity, HuD has been implicated in peripheral axon injury recovery and motor neuronal function. The characterization of HuD specific interactions has always been a challenging task due to the high similarity of sequence and structure with the other members of the ELAVL family, and the lack of specific antibodies. To selectively identify in vivo HuD binding sites, we adapted the CRAC protocol (cross-linking and analysis of cDNAs), originally developed for yeast, to be used with mouse motor neuron NSC-34 cells engineered with inducible tagged HuD. In parallel, to characterize the role of HuD in post-transcriptional regulation, we also profiled the transcriptome (total RNA, RNA-Seq), the translatome (polysomal RNA, POL-Seq) and the alternative polyadenilation (APA, 3’end mRNA sequencing) of HuD induced and control NSC-34 cells. Keywords: HuD, Elavl4, Y3, Rny3, CRAC, RNA interactome, RNA binding, NSC-34, transcriptome profiling, translatome profiling, RNA-Seq, POL-Seq, motor neuron
2018-07-13 | GSE115490 | GEO
Project description:Purpose: The goals of this study are to determine how deletion of the RNA-binding protein HuD affects the levels of microRNAs in the striatum of Elav4 (HuD) KO using miRNA-seq Methods: Total RNA from striatum of male adult Elavl4 (HuD) KO and wild-type (WT) littermates (n=3 per genotype) crossbred to C57Bl/6 for more than 10 generations were analyzed by small RNA sequencing, in triplicate, using an Illumina NextSeq platorm. The percentage of the number of bases with Q >30 for all 6 samples were >93%. Results: Using an optimized data analysis workflow (see diagram below), about 6.3 million sequence reads per HuD KO sample and 3.3 million per WT sample were mapped miRBase v22. The expression level (Reads count) of miRNAs were calculated using miRDeep2. The number of identified miRNA per group was calculated based on the mean of CPM in group > 1. Conclusions: We found 309 miRNAs from 54 unique families (FC>1.75- and p<0.05) were significantly upregulated while 161 miRNAs from 143 unique families (FC<0.55 and p<0.05) were significantly downregulated in the striatum of HuD KO mice vs WT samples.
2021-09-29 | GSE179652 | GEO
Project description:Purpose: The goal of this study was to analyse RNA-seq data to determine the effect of deletion of the RNA-binding protein HuD in transcriptiome-wide alternative splicing and polyadenylation in the neocortex of adult HuD KO vs. wild type littermates (controls) Methods: Cortical mRNA profiles of adult HuD KO (Elavl4 -/-) mice and Control mice were generated by RNA sequencing, in triplicate, using Illumina NovaSeq 6000 platform. The quality of raw RNA-sequencing reads was evaluated using FastQC software (version 0.11.5) and adapters were removed using the Cutadapt (version 1.15) and Trimmomatic (version 0.38) software. Alternative splicing was evaluated using rMATS software (version 4.0.2) and BAM files were converted to BedGraph before examining alternative polyadenylation using DaPars software (version 0.9.1) Methods (cont.): RNA-seq data was aligned to the M musculus genome (UCSC browser, mm10) using STAR (version 2.7.3a), and MultiQC (version 1.8) was used to perform a final quality check on STAR alignment files. If alignments were found to be the same read length and have >80% reads mapped to a unique location, the data was considered good quality and alternative splicing and polyadenylation analyses were performed. Sequence reads per sample were aligned to the mouse genome (build mm10). Results: HuD KO affected alternative splicing of 310 genes, including 17 validated HuD targets such as Cbx3, Cspp1, Snap25 and Gria2. In addition, deletion of HuD affected polyadenylation of 53 genes, with the majority of significantly altered mRNAs shifting towards usage of the proximal polyadenylation signal (PAS), resulting in shorter 3’ untranslated regions (3’ UTRs). Conclusions: HuD KO had a greater effect on alternative splicing than polyadenylation, with many of the affected genes implicated in several neuronal functions and neuropsychiatric disorders.
2021-03-17 | GSE169023 | GEO
Project description:Mutant FUS and ELAVL4 (HuD) aberrant crosstalk in Amyotrophic Lateral Sclerosis
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Project description:RNA Sequencing analyses of control and HuD KO (Elavl4 null) mouse cortical transcriptomes
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Project description:Amyotrophic lateral sclerosis (ALS) involves the degeneration of brain and spinal cord motor neurons. Mutations in Superoxide Dismutase 1 (SOD1), TAR DNA-binding protein 43 (TDP-43) and Fused-in-Sarcoma (FUS) account for 20-30 % of the familial ALS (fALS) cases. The RNA-binding proteins TDP-43 and FUS function in mRNA and miRNA biogenesis. MiRNAs are required for survival of neurons and deregulation of miRNA expression has been reported in several neurodegenerative disorders. Here, we report the dysregulation of DROSHA, DGCR8, and DICER in human neuroblastoma SH-SY5Y cells expressing the ALS-associated SOD1(G93A) mutant protein. MiRNA profiling in SH-SY5Y/SOD1(G93A) cells and transgenic SOD1(G93A) mice revealed upregulation of miR-129-5p at the early stage of disease. Moreover, miR-129-5p is also upregulated in lymphocytes of sporadic ALS patients. We demonstrate that miR-129-5p targets ELAVL4/HuD mRNA by binding to its 3’ UTR, which reduces HuD expression and impairs differentiation and neurite outgrowth. Conversely, treatment with an antagomir or complementation with HuD protein restores neuritogenesis. Collectively, our study identifies miR-129-5p and HuD as key regulators of neuronal differentiation and as potential therapeutic targets for ALS.
2018-02-01 | GSE94379 | GEO
Project description:MicroRNA-sequencing from the striatum of ELAVL4 (HuD) KO mice and wild type littermate adult mice
| PRJNA744482 | ENA
Project description:Determination of RNAs bound by wildtype and P525L mutant FUS in human iPSC-derived motoneurons using PAR-CLIP (Photoactivatable Ribonucleoside-Enhanced Crosslinking and Immunoprecipitation)
2019-06-13 | GSE118347 | GEO
Project description:Post-transcriptional mechanisms play an important role in the control of gene expression. RNA-binding proteins are key players in the post-transcriptional control of many neural genes and they participate in multiple processes, from RNA splicing and mRNA transport to mRNA stability and translation. Our laboratory has developed the first mouse model overexpressing a RNA-binding protein, the ELAV-like protein HuD, in the CNS under the control of the CaMKinII alpha promoter. Initial behavioral characterization of the mice revealed that they had significant learning deficits together with abnormalities in prepulse inhibition (PPI). At the molecular level, we found that the expression of the growth-associated protein GAP-43, one of the targets of HuD, was increased in the hippocampus of HuD transgenic mice. Besides binding and stabilizing the GAP-43 mRNA, HuD was shown to bind in vitro or in vivo the mRNAs of acetylcholinesterase, tau, p21, neuroserpin, and MARCKS among others. To identify additional targets of HuD, we propose to pull down the RNAs bound to myc-tagged HuD in vivo in the brains of HuD transgenic mice, to isolate these bound RNAs and use these to probe DNA microarrays. We will use pull downs using non-immune IgGs as controls. To test our hypothesis we propose 2 specific aims:; 1) To identify the targets of HuD in HuD overexpressor mice and; 2) To compare these target mRNAs to those we identified previously as having increased levels of expression in the hippocampus of HuD transgenic mice (see protocol # Perrone-Bizzozero-5R01NS030255-12) and/or those that show increased expression in dentate granule cells of HuD transgenic mice ( protocol # perro-affy-mouse-309741); Based upon the role of the RNA-binding HuD in neuronal development and synaptic plasticity, we expect that HuD targets will include mRNAs for proteins involved in these processes. All mice are in C57BL/6 background and are male approximately 60 days old. To identify target of HuD in our transgenic mice, we will homogenize the homogenize the hippocampi (2 per animal) of 3 transgenic mice and use these protein extracts for immunoprecipitation assays. Briefly, transgenic myc-tagged HuD protein will be immunoprecipitated using myc-tag antibodies and protein-G agarose beads and samples will be sent to T-Gen for RNA isolation, single round amplification and probing of DNA microarrays. We will use non-immune IgG as a negative control. Conditions:; Pooled Extracts from 3 transgenic mice IP with myc-tag antibodies: Triplicates; Pooled extract from 3 transgenic mice IP with non-immune IgGs (negative control): duplicates
2008-06-11 | E-GEOD-11333 | biostudies-arrayexpress