LSD1 functions through CoREST to maternally reprogram histone methylation
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ABSTRACT:
PROVIDER: PRJNA705990 | ENA |
REPOSITORIES: ENA
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Project description:SFMBT1 is a poorly characterized mammalian MBT domain-containing protein homologous to Drosophila SFMBT, a Polycomb group protein involved in epigenetic regulation of gene expression. Here, we show that SFMBT1 regulates transcription in somatic cells and during spermatogenesis through the formation of a stable complex with LSD1 and CoREST. When bound to its gene targets, SFMBT1 recruits its associated proteins and causes chromatin compaction and transcriptional repression. SFMBT1, LSD1, and CoREST share a large fraction of target genes including those encoding replication-dependent histones. Simultaneous occupancy of histone genes by SFMBT1, LSD1, and CoREST is regulated during the cell cycle and correlates with the loss of RNA polymerase II at these promoters during G2, M, and G1. The interplay between the repressive SFMBT1M-bM-^@M-^SLSD1M-bM-^@M-^SCoREST complex and RNA polymerase II contributes to the timely transcriptional regulation of histone genes in human cells. SFMBT1, LSD1, and CoREST also form a stable complex in germ cells and their chromatin binding activity is regulated during spermatogenesis. RNA-seq in HeLaS3 cells ctrl compared to triple knockdown for SFMBT1, CoREST, and LSD1
2013-03-26 | E-GEOD-45442 | biostudies-arrayexpress
Project description:SFMBT1 is a poorly characterized mammalian MBT domain-containing protein homologous to Drosophila SFMBT, a Polycomb group protein involved in epigenetic regulation of gene expression. Here, we show that SFMBT1 regulates transcription in somatic cells and during spermatogenesis through the formation of a stable complex with LSD1 and CoREST. When bound to its gene targets, SFMBT1 recruits its associated proteins and causes chromatin compaction and transcriptional repression. SFMBT1, LSD1, and CoREST share a large fraction of target genes including those encoding replication-dependent histones. Simultaneous occupancy of histone genes by SFMBT1, LSD1, and CoREST is regulated during the cell cycle and correlates with the loss of RNA polymerase II at these promoters during G2, M, and G1. The interplay between the repressive SFMBT1M-bM-^@M-^SLSD1M-bM-^@M-^SCoREST complex and RNA polymerase II contributes to the timely transcriptional regulation of histone genes in human cells. SFMBT1, LSD1, and CoREST also form a stable complex in germ cells and their chromatin binding activity is regulated during spermatogenesis. ChIP-seq in HeLaS3 at different phases of the cell cycle and primary germ cells at different stages of spermatogenesis using antibodies against endogenous proteins
2013-03-26 | E-GEOD-45441 | biostudies-arrayexpress
Project description:SFMBT1 is a poorly characterized mammalian MBT domain-containing protein homologous to Drosophila SFMBT, a Polycomb group protein involved in epigenetic regulation of gene expression. Here, we show that SFMBT1 regulates transcription in somatic cells and during spermatogenesis through the formation of a stable complex with LSD1 and CoREST. When bound to its gene targets, SFMBT1 recruits its associated proteins and causes chromatin compaction and transcriptional repression. SFMBT1, LSD1, and CoREST share a large fraction of target genes including those encoding replication-dependent histones. Simultaneous occupancy of histone genes by SFMBT1, LSD1, and CoREST is regulated during the cell cycle and correlates with the loss of RNA polymerase II at these promoters during G2, M, and G1. The interplay between the repressive SFMBT1–LSD1–CoREST complex and RNA polymerase II contributes to the timely transcriptional regulation of histone genes in human cells. SFMBT1, LSD1, and CoREST also form a stable complex in germ cells and their chromatin binding activity is regulated during spermatogenesis.
2013-03-26 | GSE45442 | GEO
Project description:SFMBT1 is a poorly characterized mammalian MBT domain-containing protein homologous to Drosophila SFMBT, a Polycomb group protein involved in epigenetic regulation of gene expression. Here, we show that SFMBT1 regulates transcription in somatic cells and during spermatogenesis through the formation of a stable complex with LSD1 and CoREST. When bound to its gene targets, SFMBT1 recruits its associated proteins and causes chromatin compaction and transcriptional repression. SFMBT1, LSD1, and CoREST share a large fraction of target genes including those encoding replication-dependent histones. Simultaneous occupancy of histone genes by SFMBT1, LSD1, and CoREST is regulated during the cell cycle and correlates with the loss of RNA polymerase II at these promoters during G2, M, and G1. The interplay between the repressive SFMBT1–LSD1–CoREST complex and RNA polymerase II contributes to the timely transcriptional regulation of histone genes in human cells. SFMBT1, LSD1, and CoREST also form a stable complex in germ cells and their chromatin binding activity is regulated during spermatogenesis.
2013-03-26 | GSE45441 | GEO
Project description:Since the germline mortality phenotype of met-2; spr-1 mutants lie between spr-5; met-2 mutants and single mutants, it raises the possibility that maternal SPR-5 reprogramming may be partially dependent upon the SPR-5 interacting partner SPR-1. If mutating spr-1 partially compromises SPR-5 maternal reprogramming, we would expect that the gene expression changes in met-2; spr-1 mutants would be similar to spr-5; met-2 mutants, but that the changes would be less severe in met-2; spr-1 mutants. To test this possibility, we performed RNA-seq on spr-1, met-2, and met-2; spr-1 mutant L1 progeny compared to N2 L1 progeny.
2021-03-03 | GSE168081 | GEO
Project description:Lysine specific demethylase 1 (LSD1/KDM1A) regulates gene expression as part of the CoREST complex, along with co-repressor of REST (CoREST) and histone deacetylase 1 (HDAC1). CoREST is recruited to specific genomic loci by components of the core complex and numerous transient interactions with chromatin associated factors and transcription factors. To sample the chromatin environment in proximity to CoREST, we performed proximity-dependent biotin-identification (BioID) with four different members of the complex in 293T cells. Retaining only targets identified with 3 out of 4 baits, we identified 302 CoREST-associated proteins. Among this group were 16 of 18 known CoREST components and numerous novel associations, including readers (CHD3, 4, 6, 7 and 8), writers (KMT2B and KMT2D) and erasers (KDM2B) of histone methylation. However, components of other HDAC1 containing complexes (e.g. Sin3A, NuRD) were largely absent, suggesting that CoREST functions independently. As LSD1 plays an essential role in early embryonic development, we performed BioID using the endogeneously tagged protein in pluripotent, early- and late-differentiating embryonic stem cells. We identified 157 LSD1-associated proteins of which 66 were constitutively associated across all three time-points (44%), including novel interactions with the MMB and ChAHP complexes. These data imply that the majority of CoREST interactions are dynamic and highly cell type dependent.
2021-11-03 | PXD017344 | Pride
Project description:Lysine specific demethylase 1 (LSD1), which demethylates mono- and di- methylated histone H3-Lys4 as part of a complex including CoREST and histone deacetylases (HDAC), is essential for embryonic development in the mouse beyond e6.5 days. Here, we demonstrate that LSD1 expression and therefore function, is restricted to the epiblast of the post- implantation embryo. Conditional deletion of LSD1 in mouse embryonic stem (ES) cells, in vitro counterpart of the epiblast, revealed a reduction in CoREST protein, a subsequent decrease in associated HDAC activity and a global increase in Histone H3 Lys56 acetylation. Despite this biochemical perturbation, LSD1 deleted ES cells proliferate normally and retain stem cell characteristics. Loss of LSD1 causes the aberrant expression of 588 genes, including a number of transcription factors with roles in tissue development such as brachyury, Hoxb7, Hoxd8 and RARγ. Brachyury, a key-regulator of mesodermal differentiation, is a direct target gene of LSD1 and is over-expressed in e6.5 day Lsd1 genetrap embryos. Thus, LSD1 is required for the appropriate expression of key developmental regulators, via the stabilization of the LSD1/CoREST/HDAC complex, during early embryonic development. RNA samples from Lsd1Lox/Δ3 and Lsd1Δ3/Δ3 cells were compared, three biological replicates were performed.
2010-12-06 | E-GEOD-21131 | biostudies-arrayexpress
Project description:Precise control of transcriptional programs underlying metazoan development is modulated by enzymatically active co-regulatory complexes, coupled with epigenetic strategies, but how specific members of histone modification enzyme families such as histone methyltransferases and demethylases are utilized in vivo to simultaneously orchestrate distinct developmental gene activation and repression programs remains unclear. Here, we report that the initially-described histone lysine demethylase, LSD1, a component of the CoREST/CtBP corepressor complex, is required for late cell-lineage determination and differentiation during pituitary organogenesis. Surprisingly, LSD1 acts primarily on target gene activation programs, as well as in gene repression programs, based on recruitment of distinct LSD1-containing coactivator or corepressor complexes. Intriguingly, LSD1-dependent gene repression programs can be extended late in development with the induced expression of ZEB1, a Kr.pple-like repressor that can act as a molecular beacon for recruitment of the LSD1-containing CtBP/CoREST corepressor complex, causing repression of an additional cohort of genes, such as GH, that previously required LSD1 for activation.
2007-02-13 | E-TABM-223 | biostudies-arrayexpress
Project description:Genomic amplification of OTUD7B is frequently found across human cancers. But its role in tumorigenesis is poorly understood. Lysine‐specific demethylase 1 (LSD1) is known to execute epigenetic regulation by forming corepressor complex with CoREST/histone deacetylases (HDACs). However, the molecular mechanisms by which cells maintain LSD1/CoREST complex integrity are unknown. Here, it is reported that LSD1 protein undergoes K63‐linked polyubiquitination. OTUD7B is responsible for LSD1 deubiquitination at K226/277 residues, resulting in dynamic control of LSD1 binding partner specificity and cellular homeostasis. OTUD7B deficiency increases K63‐linked ubiquitination of LSD1, which disrupts LSD1/CoREST complex formation and targets LSD1 for p62‐mediated proteolysis. Consequently, OTUD7B deficiency impairs genome‐wide LSD1 occupancy and enhances the methylation of H3K4/H3K9, therefore profoundly impacting global gene expression and abrogating breast cancer metastasis. Moreover, physiological fluctuation of OTUD7B modulates cell cycle‐dependent LSD1 oscillation, ensuring the G1/S transition. Both OTUD7B and LSD1 proteins are overpresented in high‐grade or metastatic human breast cancer, while dysregulation of either protein is associated with poor survival and metastasis. Thus, OTUD7B plays a unique partner‐switching role in maintaining the integrity of LSD1/CoREST corepressor complex, LSD1 turnover, and breast cancer metastasis.
2021-04-20 | GSE172370 | GEO
Project description:Genomic amplification of OTUD7B is frequently found across human cancers. But its role in tumorigenesis is poorly understood. Lysine‐specific demethylase 1 (LSD1) is known to execute epigenetic regulation by forming corepressor complex with CoREST/histone deacetylases (HDACs). However, the molecular mechanisms by which cells maintain LSD1/CoREST complex integrity are unknown. Here, it is reported that LSD1 protein undergoes K63‐linked polyubiquitination. OTUD7B is responsible for LSD1 deubiquitination at K226/277 residues, resulting in dynamic control of LSD1 binding partner specificity and cellular homeostasis. OTUD7B deficiency increases K63‐linked ubiquitination of LSD1, which disrupts LSD1/CoREST complex formation and targets LSD1 for p62‐mediated proteolysis. Consequently, OTUD7B deficiency impairs genome‐wide LSD1 occupancy and enhances the methylation of H3K4/H3K9, therefore profoundly impacting global gene expression and abrogating breast cancer metastasis. Moreover, physiological fluctuation of OTUD7B modulates cell cycle‐dependent LSD1 oscillation, ensuring the G1/S transition. Both OTUD7B and LSD1 proteins are overpresented in high‐grade or metastatic human breast cancer, while dysregulation of either protein is associated with poor survival and metastasis. Thus, OTUD7B plays a unique partner‐switching role in maintaining the integrity of LSD1/CoREST corepressor complex, LSD1 turnover, and breast cancer metastasis.
2021-04-20 | GSE172369 | GEO