Genetic screening and multipotency in rhesus monkey haploid neural progenitor cells
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ABSTRACT:
PROVIDER: PRJNA679733 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13091026.fastq.gz | Fastqsanger.gz | |||
| SRR13091027.fastq.gz | Fastqsanger.gz | |||
| SRR13091028.fastq.gz | Fastqsanger.gz | |||
| SRR13091029.fastq.gz | Fastqsanger.gz | |||
| SRR13091030.fastq.gz | Fastqsanger.gz |
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Project description:Haploid embryonic stem cells (haESCs) have been extensively applied in forward and reverse genetic screening. However, a mammalian haploid somatic cell line is difficult to achieve because of spontaneous diploidization in differentiation. As a non-human primate species, monkeys are widely used in basic and pre-clinical research in which haploid cells are restricted to ESCs. Here, we report that rhesus monkey haESCs in an optimized culture medium show naïve-state pluripotency and stable haploidy. This model facilitated the derivation of haploid neural progenitor cells (haNPCs), which maintained haploidy and differentiation potential into neurons and glia for a long period in vitro. High-throughput trapping mutations can be efficiently introduced into haNPCs via piggyBac transposons. This system proves useful when identifying gene targets of neural toxicants via a proof-of-concept experiment. Using CRISPR/Cas9 editing, we confirmed that B4GALT6, from the candidate gene list, is a resistance gene of A803467 (a tetrodotoxin-like toxicant). This model is the first non-human primate haploid somatic cell line with proliferative ability, multipotency and an intact genome, thus providing a cellular resource for recessive genetic and potential drug screening.
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Project description:The genomic DNA sample of monkey PG-haESCs were compared to the female adipose cells by comparative genomic hybridization. The data confirmed that these haploid cells sustained genome integrity. The analysis was performed on a Agilent aCGH G3 Rhesus Macaque 4x180K array to analyse the copy number variations in monkey PG-haESCs, and the genomic DNA of femal monkey adipose was used as control, which had the same background with haploid ESCs.
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Project description:Embryonic stem cells (ESCs) may be able to cure or alleviate the symptoms of various degenerative diseases. However, unresolved issues regarding apoptosis, maintaining function and tumor formation mean a prudent approach should be taken towards advancing ESCs into human clinical trials. The rhesus monkey provides the ideal model organism for developing strategies to prevent immune rejection and test the feasibility, safety and efficacy of ESC-based medical treatments. Transcriptional profiling of rhesus ESCs provides a foundation for future pre-clinical ESC research using non-human primates as the model organism. In this research we use microarray, immunocytochemistry, real-time and standard RT-PCR to characterize and transcriptionally profile rhesus monkey embryonic stem cells. We identify 367 rhesus monkey stemness genes, we demonstrate the high level (>85%) of conservation of rhesus monkey stemness gene expression across five different rhesus monkey embryonic stem cell lines, we demonstrate that rhesus monkey ESC lines maintain a pluripotent undifferentiated state over a wide range of Pou5f1 (Oct-4) expression levels and we compare rhesus monkey, human and murine stemness genes to identify the key mammalian stemness genes. The supplementary tables list the genes that have been upregulated in each undifferentiated rhesus monkey embryonic stem cell line (GSM99998, GSM99999,GSM100000, GSM100001, GSM100002, GSM99965, GSM99966) in comparison analysis with the pooled differentiated embryonic stem cells (GSM99840). Supplemental Table 1 contains the comparison analysis for all 52,865 probe sets on the rhesus monkey gene chip, Supplemental Table 2 contains the rhesus monkey genes that were significantly upregulated (FC>3) in the ORMES-6 biological replicates, Supplemental Table 3 contains the rhesus monkey genes that were significantly upregulated (FC>3) in the pooled differentiated EBs and Supplemental Tables 4-8 represent genes that were significantly upregulated in ORMES 6A, 7, 9, 10 and 13 respectively. Supplemental Table 9 contains the RT-PCR primers used in this project. Keywords: Rhesus monkey embryonic stem cell microarray
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Project description:Rhesus Monkey is one of the important primate models widely used in the fields of disease mechanism study, pre-clinical test in drug discovery and molecular evolution. However, the majority of rhesus gene annotations were putatively mapped from human genome, with only 10% supported by rhesus EST data.So, to better study the transcriptome, paired-end, strand-specific, poly(A)-positive RNA-Seq were performed in 5 rhesus monkey tissues. 5 tissue samples examined: prefrontal cortex, liver, skeletal muscle, adipose, testis
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Project description:Rhesus Monkey placenta RNA-seq data, the tdf files were generated by using rheMac3 from UCSC.
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Project description:Genomic imprinting is a important biological process, which leads to parental specific gene expressions. Improper gene imprinting results in several developmental abnormalities, cancer and other diseases. Studies in mice indicated genomic imprinting establishment relied on parental allele-specific DNA methylation during gametogenesis. Despite the fact that genomic imprinting is highly conserved in mammalian, the species specific pattern exists. Until now, except that of in mouse, informations about imprinting patterns is little, especially in primates. Through generation genome-wide 5mC and 5hmC profiles for two types of haploid genomes from rhesus monkeys, including parthenogenetic haploid ESCs ( PG ha ESCs) (derived from rhesus monkey parthenogenetic embryos) and sperms. We clearly characterized and distinguished methylome (5mC) from hydroxymethylome (5hmC)(which can not discriminate from methylome in traditional bisulfite (BS) sequencing) in haploid genomes. Based on these information, we determined distribution patterns of 5mC and 5hmC in ha ESCs and sperms. Interestingly, both 5hmC levels and distribution patterns were similar in ha ESCs and sperms, and 5hmC which is enriched in the regions with low 5mC frequency. Meanwhile through comparing DNA methylation and hydroxymethylation status between sperms and ha ESCs, we first provided a fundamental information of monkey imprinted differentially methylated regions (DMRs) distribution in monkey chromosomes. Second, we observed that DMRs did not overlap with hydroxymethylated regions (DMR or DhMR), suggesting that establishment of imprinted regions was not interfered by 5hmC. Our results demonstrate DNA methylation profiling of PG ha ESCs and sperms can be uesed as a powerful and effective method to map and characterize imprinted regions in non-human primates genome.
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Project description:We generated RNA-Seq data for Rhesus monkey placenta. Together with RNA-Seq and epigenomic data generated for placentas of human and mouse, we aim to understand the evolution of gene expression and regulatory elements among the placentas of different mammalian species.
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