Epigenome analysis of normal and DNMT3L-overexpressing human neurons [array]
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PROVIDER: PRJNA660026 | ENA |
REPOSITORIES: ENA
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Project description:Genome wide DNA methylation profiling of cultured fetal human neurons infected with lentivirus carrying DNMT3L or ZsGreen genes for 4days. The Illumina Infinium 850k Human MethylationEPIC BeadChip was used to obtain DNA methylation profiles across approximately 850,000 CpGs in the infected cells. Samples included 3 control samples (ZsGreen) and 3 DNMT3L-overexpressing samples (DNMT3L).
2020-08-29 | GSE157078 | GEO
Project description:Normal and DNMT3L-overexpressing human neurons
| PRJNA660025 | ENA
Project description:The objective of this study is to test the gene expression changes caused by DNMT3L overexpression in human neurons. The total RNA of each sample was extracted from the lentivirus infected, early differentiated human neuroprogenitors with ZsGreen (n=3) or DNMT3L (n=3) overexpression by using TRIzol reagent. Then the RNA samples were processed for high throughput transcriptome sequencing on Illumina HiSeq 3000 platform. Results: among 57 905 cleaned RNAs, 7983 RNAs were differentially expressed in DNMT3L overexpressing neurons compared with control neurons, with q-value ≤ 0.05. After limited the cut-off by adding |fold change| ≥ 1.5, the numbers of differential expressed RNAs lowered to 1073, with more down-regulation (590) than up-regulation (483). The differential expressed genes distributed in all chromosomes, also showing the pattern of more down-regulation than up-regulation in every chromosome except chromosome 21. Functional annotation with DAVID revealed the top functional groups including type I interferon signaling pathway and RNA and protein processing.
2020-08-29 | GSE157080 | GEO
Project description:Transcriptome profiling of normal and DNMT3L-overexpressing human neurons [RNA-seq]
| PRJNA660028 | ENA
Project description:The objective of the study was to examine the gene expression changes caused by human DNMT3L overexpression in Drosophila melanogaster brains. There were 6 samples in total- C1, C2, C3, D1, D2, and D3. C1-C3 were larvae brains from the strain of elavC155-Gal4, which were used as the control group (C). D1-D3 were larvae brains from the strain with DNMT3L overexpression, which were bred by crossing the strains of elavC155-Gal4 and w/w;P(UAS-DNMT3L,w+)/Cyo;TM2/TM6B and used as the DNMT3L overexpressing group (D). The total RNA of each sample was extracted from 30 brains of the 3rd instar larvae of Drosophila by using TRIzol reagent. Then the RNA samples were processed for high throughput transcriptome sequencing on Illumina HiSeq 3000 platform. Results: among 17737 cleaned RNAs, 267 RNAs were differentially expressed in DNMT3L overexpressing group compared with control group, with q-value ≤ 0.05 and |fold change|≥2 , with more down-regulation (151) than up-regulation (116). They corresponded to 655 human homologous genes. The differential expressed genes distributed in all chromosomes. Functional annotation with GO and KEGG enrichment revealed the top functional groups including calcium ion transport, voltage gated channel, choilnergic synapse, serotonergic synapse, and drug metabolism.
2024-05-29 | GSE263069 | GEO
Project description:DNA methylation is essential for mammalian development. Studies of the catalytically inactive DNA methyltransferase Dnmt3l have mainly been limited to mice where Dnmt3l was shown to be essential for fertility, de novo DNA methylation in early embryos and maintenance of DNA methylation patterns in mouse pluripotent stem cells. Recent work revealed that DNMT3L is the most highly enriched chromatin factor in naive human pluripotent stem cells (hPSCs) compared with primed hPSCs. Stem cell-based human embryo models and naive hPSCs provide a unique opportunity to functionally dissect human developmental mechanisms. Here we use naive hPSCs and human blastoids, a 3D human blastocyst model, to investigate the functional impact of DNMT3L on human naive pluripotency and preimplantation development. We demonstrate an essential role of DNMT3L in trophectoderm cell fate induction, maintenance of DNA methylation patterns and chromatin states in naive hPSCs, and blastoid lineage identity. We further show that DNMT3L promotes reprogramming to naive pluripotency, and has integrated a hominoid-specific naive human pluripotency gene regulatory program involving evolutionary recent transposable elements. Therefore, DNMT3L plays conserved and hominoid-specific functions in human naive pluripotency and pre-implantation development.
2026-08-25 | PXD055233 | Pride
Project description:Studies of the catalytically inactive DNA methyltransferase Dnmt3l have mainly been limited to mice where Dnmt3l was shown to be essential for fertility, de novo DNA methylation in early embryos and maintenance of DNA methylation patterns in mouse pluripotent stem cells. In humans, recent work revealed that DNMT3L is the most highly enriched chromatin factor in naive pluripotent stem cells (hPSCs) compared with primed hPSCs. Naive hPSCs and stem cell-based human embryo models provide a unique opportunity to functionally the role of DNMT3L in human naive pluripotency and development. Here we use naive hPSCs and human blastoids, 3D blastocyst models, to investigate the functional impact of DNMT3L on human naive pluripotency and preimplantation development. We demonstrate an essential role of DNMT3L in maintenance of DNA methylation patterns and chromatin states in naive hPSCs, and in trophectoderm cell fate induction and blastoid lineage identity. We further show that DNMT3L promotes reprogramming to naive pluripotency, and has integrated a hominoid-specific naive human pluripotency gene regulatory program involving evolutionarily recent transposable elements. Our work provides crucial insights into the molecular basis of human naive pluripotency and sheds light on human preimplantation development.
2026-08-31 | PXD053638 | Pride
Project description:During oogenesis, DNA methyltransferase 3-like (Dnmt3l) is required for the establishment of the maternal germline DNA methylation imprints that in the offspring, govern the parent-of-origin-specific expression of most known imprinted genes (Science 2001, 294:2536-9). Dnmt3l-deficient dams were crossed with wildtype sires to obtain Dnmt3l-/+ embryos that lack maternal methylation imprints. Gene expression was measured in Dnmt3l-/+ and wildtype embryos and is expected to differ for imprinted genes that are under the control of a maternal methylation mark. Experiment Overall Design: 1 normal control sample/array. 2 biologically replicate Dnmt3l-/+ samples/arrays.
2008-06-16 | E-GEOD-8756 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the SubSeries listed below.
2020-08-29 | GSE157081 | GEO
Project description:During oogenesis, DNA methyltransferase 3-like (Dnmt3l) is required for the establishment of the maternal germline DNA methylation imprints that in the offspring, govern the parent-of-origin-specific expression of most known imprinted genes (Science 2001, 294:2536-9). Dnmt3l-deficient dams were crossed with wildtype sires to obtain Dnmt3l-/+ embryos that lack maternal methylation imprints. Gene expression was measured in Dnmt3l-/+ and wildtype embryos and is expected to differ for imprinted genes that are under the control of a maternal methylation mark. Keywords: genetic modification, DNA methylation
2008-04-14 | GSE8756 | GEO